Life of the Female Pioneer on the Oregon Trail

Life of the Female Pioneer on the Oregon Trail University Of Phoenix HIS/110 August 25, 2012 Kim Murphy Life of the Female Pioneer on the Oregon Trail My life as a female pioneer taking the journey down the Oregon Trail was one of hardship and adventure. During the early 1800s settlers began to explore new territory in the New World looking for new opportunities. Through the pioneer journeys of Lewis and Clark a route through America was discovered that would take settlers to new land in the Pacific Northwest portion of the country. To reach the new land pioneers, such as I, had to travel down what became known as the Oregon Trail.Through the Oregon Trail the expansion of the West began but to get to this new part of the country I would have to travel two thousand miles along with other pioneers from my part of the country. We started in Missouri that required us to travel through five states to reach our new destination. To reach the new land offered to myself and the other pioneers in the New World, we would travel in large groups with people in wagons and on horseback. This was to help ensure our safety as we traveled the Oregon Trail to the new land in the West.Our travels included men, women, and children of all ages. Although I made the choice to go myself, there were many women on the trail that had to face the hardships of the long trail because their husbands had chosen to take this adventure. This was difficult for many of them because they were forced to leave their already established homes in exchange for the hardships of the trail and an uncertain future in the Pacific Northwest. To travel down the Oregon Trail, we travelled in horse drawn wagons and had oxen’s pulling carts of supplies.I like other pioneer families left my home with my worldly possessions that I could afford to carry. We faced being robbed at gunpoint by highway men on the trail. Another danger faced by the female pioneers and the wagon train were attacks by Native America ns. The Wagon Trains were attacked and burned and the men were killed leaving the women, children, and wagon supplies to be stolen by the Indians. Women were forced to become the slave of an Indian family or the wife of an Indian brave while the children were adopted by Indian families or made to be slaves.I and the other women were responsible for ensuring the food supply lasted on the long journey as well as packing the wagon. We were also responsible for cooking the meals on the Oregon Trail. We were required to wear long dresses with long sleeves in oppressive heat and care for all of the needs of the men and children as well as tend to the sick. There was a major risk to the female pioneer of losing our husbands or even our children to illness or accidents along the Oregon Trail. If the food supply ran short the men would hunt for food, use supplies meant for our new homes, or die of starvation.Illnesses, such as Typhoid and cholera, were common and would spread through the wag on trains creating more work for us women (Bledsoe, 1984). The overworked women would in turn become more vulnerable to becoming sick and perishing. Women who gave birth while on the Oregon Trail faced vast difficulty and in many cases the female pioneer or the new born would die. Women pioneers were usually fairly young because women during this time married as young as 14 but quickly toughened up because of the major responsibilities we faced on the trail.Despite the many hardships faced by myself and the other female pioneers, we helped to pave the way for future generations of Americans and bravely traveled to an unknown land to build a new life. The Oregon territory was originally jointly owned by American and the British but was acquired by America in 1846 and expanded the territory of the United States (Eddin, 2009). Before Oregon was acquired by America the area was sparsely populated and the single woman, such as I, had little opportunity to find a husband. In most cases we would marry a farm hand or the closest neighbor.Marriages were rarely based on love but instead of convenience and the benefit to the family. A large majority of pioneers became farmers making the pioneer women a farming wife but also required her to deal with the harsh winters that were associated with the area and adjust to a life of constant isolation. Once American acquired the Oregon territory the population began to expand and the pioneer families were offered more opportunity as well as single women, such as I, had more opportunity to meet potential husbands.New towns and cities began to emerge and we women were no longer forced to sew our own clothes. It also provided a more convenient and affordable way for us to buy food than in the past. Once the population began to grow in Oregon the society became more modernized and life for I and the other pioneer women became less harsh. References Bledsoe, L. (1984). Adventuresome Women on the Oregon Trail: 1840-186. http://www. js tor. org/discover/10. 2307/3346237? uid=3739256&uid=2129&uid Eddin, O. (2009). The Oregon Country and Westward Expansion. http://www. thefurtrapper. com/oregon_country. htm

Kant, irrationalism and religion Essay

Abstract Kant is a philosopher, which dealt with human recognition. He has been considered as an irrationalist. Many philosophers think that he used the irrationalism to justify the trust in religion and to protect the religion from the science. In this paper I shall take a view to the philosophy of Kant on recongition and to the question if Kant is an irrationalist or not. Did he use the irrationalism to protect the religion from science? This paper shall show that Kant wasn’t an irrationalist, but he simply tried to determine the limitations of the recognition and to distinguish between what we recongize and what we simply believe. His philosophy of recognition didn’t aim at protecting the religion from the science. He tells us in some pasages of the book â€Å"The critique of pure reason† that when his theory would be accepted, the men wouldn’t concluded of what they couldn’t know really, and maybe the religion would have some benefits from it. But I think that he meant the trials to prove either the existence of God or the non-existence of God. Kanti, Irrationalism and Religion Kant was firstly influenced in his philosophy by Leibnitz and later by British empiricism. By Locke and Hume he came to the conclusion that recognition stems from the senses and he also received from Leibniz’s belief that although the mind does not have any idea born, she has the innate abilities that give shape to the experience brought to it by the senses. Fundamental problem that Kant raised was on how to reconcile the absolute security that gives us mathematics and physics with the fact that our knowledge comes from the senses? Kant’s goal was to build the foundations of a new rationality that would be incontestable. In efforts to achieve security he assumed that the mind has three skills: 1. Reflection 2. Will 3. Feelings and he devoted a critique to each of them. Kant’s critique created for both rationalists and empiricists a method of transcendent or critical method, by which he meant a study of its reason, an â€Å"investigation of pure reason† to see if its judgments have universality beyond human experience and again, are necessary and related to the human experience. The logic involved in these trials may be absolutely safe and can also be applied to the world of things. Kant believed that the thought, feeling and the will are forms of reason and he decided the transcendental principles of the reason in the realm of thought, the transcendental moral principles to the will and the transcendental principles of beauty in the realm of feeling. In this paper we will try to treat if Kant is an irrational that used irrationalism to justify the religion. To clarify this we must first demonstrate his theory of knowledge and whether Kant was indeed irrational and then if he used this irrationalism to make room for faith in religion. Kant says that his goal of writing the â€Å"Critique of Pure Reason† was to put Metaphysics on the basis of sound and to transform it into a science. In the first entry of â€Å"Critique of Pure Reason† he writes: Our age is the age of criticism, to which everything must be subjected. The sacredness of religion, and the authority of legislation, are by many regarded as grounds of exemption from the examination of this tribunal. But, if they on they are exempted, they become the subjects of just suspicion, and cannot lay claim to sincere respect, which reason accords only to that which has stood the test of a free and public examination. † (Kant,2002 pg. 7,) Kant sought for the metaphysics to achieve the security of mathematics and logic. He was not a skeptic who saw the world as mere sensory appearance, but quite the contrary he was prompted to write this book as a response to the skepticism of David Hume. Kant aims to determine whether it can reach a metaphysical knowledge, and if so whether it can be arranged in a science and what its limits are. The main aim of th Pure Critique is to demonstrate how the answers to these questions can be achieved, provided that the subject is reviewed under a new angle. Kant’s own words regarding this are: â€Å"â€Å"This attempt to alter the procedure which has hitherto prevailed in metaphysics by completely revolutionizing it . . . forms indeed the main purpose of this critique. . . . It marks out the whole plan of the science, both as regards its limits and as regards its entire internal structure† (Kant,2002). â€Å"The critique of pure reason . . . will decide as to the possibility or impossibility of metaphysics in general, and determine its sources, its extent, and its limits—all in accordance with principles. . . . I venture to assert that there is not a single metaphysical problem which has not been solved, or for the solution of which the key at least has not been supplied† (Kant, 1998). Kant divided metaphysics into two parts: the first part deals with problems that are knowable by experience such as causality, while the second part deals with the whole in general and as such we do not refer to an object that we are able to perceive, because we cannot perceive the universe as a single thing. According to Kant we can have confidence only in the first part of metaphysics (general metaphysics) and it may have scientific certainty because its facilities are given in experience and is subject to verification. On contrary, the metaphysics of the second part (special metaphysics), which is so abstract that it overcomes any kind, cannot achieve scientific safety because its concepts are ‘blank’. In the first part, metaphysics deals with everything within the universe and that it is accessible to the senses, while the metaphysics in the second half deals with the universe as a whole and undetected by the senses. Of the first questions can get a correct answer while the latter not, even though these questions is well to be made. Kant was primarily interested in clarifying whether metaphysics is possible as a science or not. He was convinced that mathematics and natural sciences were true science. But is metaphysics a science? What Kant must do to achieve a scientific metaphysics was to identify the criteria for a science and then to produce metaphysical conclusions that met these criteria. Kant believed that the first criteria of a true science were that its conclusions were both necessary and universal, as much as judgments in mathematics, and geometry are. To have such universal judgments, it’s necessary to find out how they are produced, and to do this we need to see how mathematicians and scientists achieve this. When Kant asks how metaphysics is possible, he is asking how a science of everything that exists can reach the safety of pure mathematics and natural sciences. To understand this we must understand what the concept of science is and what its elements to Kant are. We must understand the use of this concept as the standard for determining whether metaphysics in both its parts is a real science. Kant conceives the science as a system of real judgments in a specific field of research. All judgments Kant divides into two types, empirical and a priori. An empirical judgment is the judgment coming from experience and can be verified by the observation itself. Kant calls all not empirical judgments as a priori. Example of an a priori judgment is: ‘All triangles have three angles â€Å". We verify this by observing not all triangles, but by analyzing what the subject to the judgment ‘triangle’ means. We find that the real concept of the ‘triangle’ is already incorporated to the concept of triangle, which is predication of our judgment. It would be contradictory to deny that the triangle has three angles. A trial verified in this way is called by Kant analytical; predicate simply explains the concept of the subject without adding anything new to him. All analytic judgments are a priori known without recourse to any particular type of experience. If all a priori judgments are analytic is another matter entirely. On the other hand we get judgment â€Å"the apple is red†. Analysis of the concept ‘apple’ is not leading us to the concept ‘red†. We need to see the apple to understand the subject. This is an empirical judgment and all empirical judgments Kant called synthetic, because they connect the subject with the predicate of the ways that are not analytical, the predicate adds a new recognition of the concept of the subject. All empirical judgments are synthetic; the survey supports the connection between subject and predicate. If all synthetic judgments are empirical-in other words if the observation is always the one that provides the link for the synthesis- is from Kant’s view of a very different matter. If metaphysics is a science consisting of judgments, these judgments are empirical or a priori? First they need to contain any existence as such, so they must be universal and necessary. For example, let’s look at a judgment of metaphysics in the first part: â€Å"everything has a cause†. We cannot allow any exception to this judgment. The opposite of it would be contradictory. Let’s see a judgment that belongs to the metaphysics of the second part: â€Å"the universe is eternal†. Even this judgment does not allow exceptions. This means that any empirical judgment is not metaphysical. They are a priori, but are they analytical? Let’s see once more the judgment â€Å"every event has a cause. † Predicate here is not included in the concept of the subject. Let’s see another judgment: ‘the universe is eternal. ‘ Even here the predicate is not included in the subject. So the typical judgments of metaphysics are synthetic and a priori. Even though they are necessary and universal, their predicates are not related to the subjects either by empirical observation or by logical connections. What makes them universal and necessary? What relationship may exist between subjects and predicate that comes neither from the experience nor is conceptual? How are synthetic judgments possible a priori? To explain the a priori synthetic judgments Kant introduces the notion of pure intuition and differentiates it from the thought. He declares that there are two basic skills of human consciousness, intuition, which is directly aware of a specific individual unit, and the thought which is indirectly aware of things through their abstract types. Each of these skills is to recognize conditions that are a priori limitations on what you can know and what cannot know from their use. A priori conditions of intuition are time and space. A priori conditions of thought are, first, a priori conditions of valid conclusions, and secondly, the conditions a priori to think about objects, forms of judgment and categories. Kant claimed that he had managed to put metaphysics of the first part in the way of science. As for Kant metaphysics is the study of everything in general, it is the study of everything that can be recognized. In this way, its findings will be a priori synthetic judgments applicable to anything that can be recognized. Kant called these researches for these a priori synthetic judgments â€Å"transcendental investigation ‘, while he is in search of conditions for recognition of all. To discover these terms means to discover to what extent is metaphysics possible as science. In the first part of metaphysics we seek transcendental conditions, universal and necessary knowledge of all things, and we are committed to stay within the limits of possible experience. The knowledge in this area consists of a final judgment S is P. We are dealing with things or objects and therefore judgments cannot be simply concepts and hence must be synthetic, adding to our knowledge. Our goal in the first part of metaphysics is to bring these items under the categories. But the categories are in themselves as empty files. They can be filled only if we look them by experience. How can one give to an abstract concept an experiencing filling? It is easy to illustrate with a first empirical content. Kant states: â€Å"The possibility of experience is . . . what gives objective reality to all our a priori cognitions. Experience, however, rests on the synthetic unity of appearances, that is, on a synthesis according to concepts of an object of appearances in general. Apart from such synthesis it would not be knowledge, but a rhapsody of perceptions which would not fit into context according to rules of a completely interconnected possible consciousness. . . . Experience, therefore, depends upon a priori principles of its form, that is, upon universal rules of unity in the synthesis of appearances. (Kant 1998). Have we arrived at the essence of metaphysics of the first part? Since the categories are a priori concepts that apply to each item, the corresponding rules for their application should be a priori rules with sensory content, unlike empirical content, a rule whose application is a retrospective sensory content. Kant is fulfilling his promise by providing us metaphysical principles which are synthetic a priori. Since all our perceptions are temporarily connected to each other, rules of application of the categories will be expressed in terms of different temporary connections that we know are a priori possible. Each of these predications, Kant calls the schema. The Schema of the category of reality is ‘being in a specified time. ‘ The Schema of substance category is ‘consistency of real in time. ‘ The result is vindication of metaphysics in its first part and the production of current metaphysical conclusions in this discipline. Kant believed that he had found the conditions that make possible empirical knowledge of things in general, and furthermore to show that metaphysics is possible as a science in the first part. But, what about the constituency for metaphysics in the second- in other words the study of all things considered collectively? This includes rational cosmology, the study of the universe as a whole, rational psychology, the study of the soul as something which refers to any possible knowledge, and rational theology study of the Creator and manager of everything. Kant argues that the attempt to demonstrate each of these issues is pointless. The major difficulty is that we cannot have an intuition of the universe as a whole, of the soul or God as a whole. Consequently, there is no possibility to connect the subject with the predicate in a synthetic judgment about these things, no way to verify or refute them. His conclusion is that although we may have certain knowledge in the first part of metaphysics we are excluded from the recognition in the second part of it. He reached this conclusion from a general argument, but he gives particular argument against the possibility of recognition in the second part of metaphysics. All of the alleged evidence for or against the thesis of the so-called science lead to logical absurdities. The whole universe, God, soul, his own free will and immortality can be thought of, but cannot be recognized, and the same can be said about things in themselves. All these things are noumena or simply understandable. Kant made the distinction between phenomenal and the noumenal reality. There is a difference between things we perceive and those that really do exist. The things we perceive he calls a phenomenon, while those that actually exist he calls noumena. Not only a phenomenon can be addressed to two different noumena (when two different things look the same) but also two different phenomena can be addressed to a single phenomenon (when the same thing looks different in different perspectives). Noumenon is a physical object and the phenomenon is how it looks. We cannot have any idea, what noumena are. We cannot know what is behind appearance, behind the information we receive from our senses. We cannot talk about what exists, if we don’t refer to phenomenal reality. We cannot know neither where nor noumena are, if they exist. We do not know for sure, if there is any different reality outside the reality we perceive. We cannot ever have real knowledge about noumenon in Kant’s opinion. Kant uses the word â€Å"knowledge† to refer more to what we know about the phenomenon than what we know about noumenon. This may seem like a contradiction: should not recognition be for real things, rather than simply for their appearance? But, the recognition for real things is impossible according to Kant, because we have no transcendental insight. We can think about real things, we can form beliefs about it, but we cannot have any knowledge about it because our knowledge of the world has only one source: the sensory data. (There are also other types of recognition but they do not apply to the world but only on the concepts and abstractions as mathematics. ). Since all our knowledge about the world is created by the sensory information and the sensory data are all phenomenal, then all our knowledge about the world is knowledge about the phenomena and not about noumena. I think Kant meant that although the phenomenon may be reason to talk about how something really is, only phenomena are not sufficient to show that something exists because the existence is the only feature noumena. To tell the truth one cannot have certain knowledge to show that something exists, we can only have faith that it exists. This means rocks and trees, as well as means God and the soul, but the difference is that for the trees and rocks it is not important if noumena actually exist. Even if a stone is nothing but a phenomenon, it kills again if someone hits with it, so I have to bow to avoid. Ultimately even my own head is also a phenomenon. No matter what is beyond what we know, because everything we have in the physical world are only phenomena, and this is what really counts. What can we know about things in themselves and other noumena as: God and soul? It is possible to know something about things in them, that they may not be space-time or be recognized by the application over to the categories. But this does not tell us how they are. Kant thought that we have a secure knowledge of things in themselves, that they exist, that they affect the way they affect the senses and contribute (help) content as opposed to the empirical form of recognition. We know that they exist by the fact that it would be absurd to talk about appearance if would not be out of something. We don’t know anything else about noumena. We do not know whether God exists or if everything is fixed or if we have free will, etc.. This does not mean that these concepts do not have a function. The concept of the universe as a whole, the concept of a legislator to the concept of rule and power over the universe, even though unverifiable, can serve as ideas of reasoning – as Kant calls them, that are regulatory to unify all knowledge into a system. Let us assume that we cannot know anything about noumena: is there any justification for believing that they exist or have this or that feature? By doing this question Kant did the distinction between belief and verification of a justification to accept it. The verification provides a full justification for accepting a belief and a refutation provides a justification to reject it. As long as we can prove or retort, the theoretical knowledge prevails and we are justified in accepting its results. But Kant thought he had shown that there are some things that cannot ever be prove or rejected. Then a question is arisen: is there any justification for believing than knowing? Kant said that once to the theoretical reason is given to what is up, the priority of practice asserts its interests. Where theoretical reason is concerned with what is, practical reason is concerned about what should be. The theoretical reason could not give us knowledge about subjects that go beyond the experience, therefore we should deny all its claims in this area and give these practical reason issues to the people. Kant says, â€Å"I must, therefore, abolish knowledge, to make room for belief† (Kant, 1998). Deny the knowledge and no reason, for practical reason is part of the reason, and because it limits the confidence in the minimum of required arguments, in Kant’s view, it is done to protect the morale -existence of God, freedom and immortality. Kant condemns the faith based on religious feelings. If we understand Kant upon his words, it will be said that he was defending the Enlightenment, the reason and the warning of disaster to come, if these will be abandoned in the name of â€Å"feeling†. Kant doesn’t deny the recognition, it is not a irrationalist. Kant raises a theory of knowledge, which wants to create a scientific metaphysic, rather than makes room to believe in God (religion); he tells us what we can know and what is beyond the scope of human knowledge. Kant had understood that his method would help religion. He writes that once one accept his theory, people will not disclose to unjustified conclusions on things that they cannot recognize and that religion would benefit from this, but I think he meant this as attempts to validate the idea that God exists or to prove that God does not exist. What Kant tells us is: we cannot ever know for sure that God and soul exist because we cannot have accurate knowledge of the noumenal existence. This is not an expression of irrationality, but quite the contrary, is an attempt to use rational thinking in order to distinguish it from what we know and what we simply believe. References Kant, I. (2002). Kritika e mendjes se kulluar. ( Ekrem Murtezai, Trans. ) Prishtine. (Original work published 1787) Kant, I. (1998). Critique of pure reason. (J. M. D Meiklejohn, Trans). Electronic texts collection. (Original work published 1787) Kant, I. (2002). Kritika e gjykimit. ( Dritan Thomollari, trans. ). Plejad. Bonardel, F. (2007). L’irrazionale. (Lucias della Pieta, Trans. ) Mimesis edizioni. Sgarbi, M. (2010). La logica dell’irrazionale. Studio sul significato e sui problemi della Kritik der Urteilskraft. Mimesis Edizioni(Milano-Udine)

Nurse ethics Essay

Ethics has become part of the nurses’ life when it comes to decision making and taking actions in the face of adversity or opportunity. Husted and Husted (2008, p.9) states that the patients has lost their power to take actions on their medical conditions due to the lack of knowledge in the health care settings. Hence, the healthcare providers are there to impart their skills and knowledge to treat the patient with the best care. This assignment would discuss how the medical decisions for A B who has undergone radical mastectomy are made using the model for ethical decision-making. A B’s husband suspects that there might be a spread of the tumors and informed the nurse in the out patient clinic not to mention to her if she had a spread of the tumor. A has the right to refuse to speak to the counselor and not to know in depth of her disease process. The ethical dilemma is in this case study is, whether the nurse should refrain herself from reveBng A’s progress on her condition. The second ethical dilemma is should A continue to restrain herself from speaking to her counselor. Yarbro, Frogge and Goodman (2005) states that the prognoses of patients with non invasive tumors will benefit from the mastectomy, however for patients who have invasive tumors are at probability for relapse. After the mastectomy operation the patients are at risk of wound infection, flap necrosis and seroma formation. Yabro et al. (2005) also mentioned that although breast cancer in young women is a rare condition, the disease is more aggressive biologically and has unfavorable prognosis as compared to older women. In most of the conditions, radiation therapy or chemotherapy is given to reduce the chances of relapses and to increase the chance of survival. This shows that there is high chance for A to have a relapse and that she is also highly at risk for depression due to her medial condition, and the altered body image. Mastectomy causes emotional distress and that is advisable to seek a counselor or a social worker to express the feelings which aids in recovery (Mills, 2006, p.561). In a research done on emotions of patients after mastectomy found that patients who have undergone mastectomy experienced is similar feelings to those of bereavement. Anxiety, denial and tension leading to stress are commonly found after post operation of mastectomy patients .The research further elaborates that the role of the patient in social, sexual and interpersonal is altered thus affecting the individual physically and mentally (Farooqi, 2005, p.270). Having so many mental and physical conflicts, A should seek help from the counselors and allow herself to express her thoughts so that she is able to cope with the situation. By doing so, she will be able to see things positively and have the courage to move on. Keeping in mind that she has two children, A will also need to make the necessary arrangements for the children in terms of financial, social and physical needs. National University Hospital (n.d) states that patients have the right to know information about their treatment and care plan and to participate in decision-making about their treatment care and their discharge. A has the right to know her treatment plan. She will not be able to see the broader picture of her condition and will remain in depression thinking that it is the end of the world if she remains unaware. When help is provided, she will be highly motivated to move on. Respect for autonomy is the fundamental rule of clinical ethics. It is defined as an individual right to make a decision without having interferences by others and personal limitations. Healthcare providers should educate and guide the patients so that they can understand the medical condition and will be able to make decisions. Patients have the right to seek consent for their medical treatment and to disclose information about their medical condition to them (Pantilat, 2008). Therefore, the nurse should inform A regarding the spread of the cancer, if there is, so that she will be able to make a rightful decision on her treatment. This is supported by AustrBan Nursing and Midwifery Council (AMNC) (2006), Code of Professional Conduct, Conduct Statement 7; nurses are required to inform the patient of the nature and purpose of recommended nursing care to assist the patient to make informed decisions. However, the husband had mentioned not to inform A about the spread to prevent their marriage from getting worst. By listening to the husband’s point of views, there are chances of saving their marriage and it benefits A and her family. Beneficence Beneficence is explained has an action done to promote good for others. An obligatory act to assist patients based on their importance and legitimate interests (Beauchamp & Childress, as cited in Parker & Dickenson, 2010, p.195). In the case study, it is said that A is very stressful and that she does not want to talk about her disease to the counselors. If the nurse listens to the husbands instruction, A’s stress level will not be added on and thus doing good for her. On the other hand, if A is not told about the disease and how much the counselors wanted to help her. The more she will pull herself back and may decide not to have any further treatment. These will deteriorate her condition. SNB Code of Ethics and Professional Conduct Value Statement 7 states that clients’ best interests must be taken care of (SNB, 2006 p. 8). Non-maleficence is a principal that requires not inflicting harm to the patients. Before being ethically reasonable in trying to help the genuine interest, the nurse must be very certain of doing no harm. Aiken (2004), non-maleficence demands that health care providers defend from harm to those who cannot protect themselves. SNB Code of Ethics and Professional Conduct Value Statement 5.1 and AustrBan Nursing & Midwifery Council (ANMC) Code of Ethics for Nurses in AustrBa Value Statement 1 both supports that nurses should safeguard the health and safety of their clients against incompetent, unethical or illegal practices. In A’s case, there is no evident that she is in a state of unsound mind or there that she wants her husband to decide for her. Therefore A should be informed of a disease process and allow herself to speak to the counselors. If A is not told the truth, the nurse is indirectly inflicting harm for the patient as she owes a duty of care. Yeo, Moorhouse, Khan and Rodney (2010, p.293) mentioned that justice is the wider sense of fairness, whereby everyone should be treated fairly and equally based on the individual or groups entitlements. Every patient would want know how much their condition has improved or deteriorated. In A case, she deserves to be treated and to know her prognosis as this allows her to have time to make arrangements in her social life. She may not want to talk about her disease to the counselor but there might be someone whom she feels comfortable in opening up. As her care providers, the team of healthcare professionals should find out the details and provide her with the best care possible. There is no evidence that A is in a state of unsound mind and that she has given her rights to her husband to make decisions on behalf of her. Therefore it is Madam Aminiah’s right to know her condition and to discuss her treatment plan. Although by breaking the news A would be distressed but it is the responsibility of the practitioners to give her an opportunity to participate in the decision making even if it has to involve a third party with A’s approval. After making discussions with A, she decides that her husband will be the only decision maker, he will be the surrogate decision maker (University of Illinois at Chicago College of Medicine, n.d) and we should respect her decision. Butts and Rich (2013) mentioned that a better ethical approach to patient care is by providing truthful information at the same time keeping the patient composed and educating her successful ways to manage her condition. Although by not telling A the truth may save her marriage life and benefit her family. The rights of the patients should not be violated. When patient right are being violated, the nurse is at risk of causing harm. SNB Code of Ethics and Professional Conduct Value Statement 2 emphasize the mandate of respect and support clients’ autonomy. Value Statement 7 requires nurses to defend those clients who may be vulnerable and incapable of protecting their own interests and to be an advocate in the best interest of their clients. Everyone is considered innocent until proven guilty. The approved investigators must collect enough evidences to visibly convince Nursing commission members that a violation had occurred. Under the Patients’ Right (Scotland) Act 2011, section 3, states that patient has the right to know about their condition and to make decision relating to the patient’s health and well being. As nurses, we should not refrain ourselves from telling the patient the truth unless stated. This is vastly supported by SNB Code of Ethics and Professional Conduct, value statement 2 Respect and promotes client’s autonomy. Therefore the nurse could be liable for professional misconduct under the Nurses and Midwives Act 2012, Chapter 209. Although A is in a stressful situation, there is no evident that her stress is allowing her to loose her rights in making decision for her disease. A is still in a state of sound mind and therefore her rights should not be violated unless she has agreed for her husband to decide for her or she showed signs and symptoms of unsound mind. This case is indeed an ethical challenge faced by the health care professionals. The author’s decision is to inform the patient on her current condition. If A is to have a spread, it’s her right to know so that she could make the right decision. This decision is supported by AustrBan Nursing and Midwifery Council, (AMNC, 2008) conduct statement 7; Nurses support the health, wellbeing and informed decision making of people requiring or receiving care. However, the physician will be the best person to break the news. Sullivan (2011) mentioned that health information is compulsory for the patient and it is the ethical and legal obligation of the physician to communicate that information so that patients can make decisions. The patient has the right to a diagnosis and, if consented to, the physician has a duty to treat. Therefore the author will update the team doctors. When A had decided to allow her husband to be her decision maker, than her rights will be respected. In A’s case, a family conference would help to resolve not only her medical issue but also her social issue. The team doctors will have to document the decision in the treatment and progress notes Medical records are legal documentations that are extremely essential and serve as a means of communication in the health care industry. When there is systemic documentation of patient’s medical history and the treatment provided are recorded, it may benefit when used as an evident in the court (Judson & Harrison, 2013, p. 196). ANMC National Competency Standards for Registered Nurse, statement 6.3 and 8 both highlight that documentation of care plan must bring about towards achieving expected outcome based on continuity of assessment and to be transparent (ANMC, 2006, p. 5 & 6). A’s decision should be clearly documented on the progress notes highlighting the issues of her decision maker and the treatment recommended to her. Situations that offer ethical dilemmas are common in the healthcare industry. In such situations, it is critical to consider not only the standard regulations, but also the professional code of ethics within the profession. To avoid any legal implication, the medial and nursing team should be mindful of their care provided without violating patient’s interest.

How Cell Phones Changed Society Essay Example | Topics and Well Written Essays - 1250 words

How Cell Phones Changed Society - Essay Example The following research paper includes the positive impacts and how cell phones have changed the lives of the people living in society. Finally a conclusion has been drawn related to the research done (Glotz, Bertsch and Locke 220). Cell phones Cell phones mostly and primarily known as mobile phones can be said to be as a device that can receive and make calls using some radio link while moving along a wide geographic area. This is widely done using some mobile operator’s cellular network. As compared to this the cordless phone can be used only within a short range of single, base station, while the cell phone does not require and base station. Cell phones along with the telephone also have several other functionalities like text messaging, emailing, internet access, gaming, business applications, and photography and so on. The cell phone which provides these above mentioned capabilities are referred as smart phones. Cell phones have become the need of every individual in order to stay connected with the society. This has become one of the basic amenities of life for the modern society people. Cell phones tend to have several features which make them a need for the common man to use it in their day to day life (Horst and Miller 18). Cell phones have changed our society In the recent period, cell phones have become a staple need and necessity of society around the world. Since its beginning as a big and bulky device, cell phones have become a sleek and pocket sized device which is required in the day to day life of the people. The device has been conceptualized in the year 1947 and since the life of the people within the society has changed a lot. Cell phones in the current period have become the main means of communication for people around the globe. Cell phones have become the need of the day as they are now a day’s also said to be as the internet devices. Now a day’s lacks of people around the globe are using cell phones to surf internet, listening to music, checking emails. It the current society scenario it can be said that it can be feasible to live without computer, television or telephone, and still indulge and have all these luxuries provided by these devices, in the palm of one’s hand using cell phones (Ling 32). Cell phones has changed the society lived in the past earlier there was telephones that were used by people to contact others when they were at home but with the invention and wide spread use of cell phones it has made possible to contact person directly where ever they are. Cell phones have made people to be contacted 24*7 for 365 days a year. With the use of cell phones people can roam around the world with constant touch with their families and business people. The cell phone technology has provided us with convenience, safety, PDA’s, alarm clocks, high communication abilities and all these in just one device (Straubhaar, Larose and Davenport 276). Cell phones have changed the whole meaning of multitasking of what it was 20 years ago. This device has enabled people to do various and varying tasks at the same time and remaining in touch with the family members and friends without any limitation of the physical presence to remain in contact. It has changed the way people work. The introduction of cameras on mobile phones has led to creation of a generation of

The Fetish of the Size 0 Woman Dissertation Example | Topics and Well Written Essays - 2500 words

The Fetish of the Size 0 Woman - Dissertation Example In recent years, one of the more popular forms of television entertainment has been the concept of the makeover show. These shows are focused primarily on re-forming women’s bodies into something that more closely matches the societal perception of the ideal regardless of the woman’s other natural abilities, talents or attributes. This ‘ideal’ image is usually defined as someone of a mid-20ish age, slender, with specific measurements and a certain good-looking charm. This limited view of the ideal automatically eliminates anyone who might have been born with a larger bone structure or other ‘defect’ that defies the reshaping of the scalpel from the ranks of the socially acceptable. Through the reality shows, though, those lucky few who are able to fit the ideal in any way, to attain the ‘body beautiful’, much is made of their subsequent happiness and success as a result of their ‘improved’ appearance and slenderer selv es. ASPS president Rod Rohrich pointed to the various individuals taking part in plastic surgery reality television indicating that many of them have unrealistic and unhealthy expectations for the results

Assimilation paper Communication Research Example | Topics and Well Written Essays - 1000 words

Assimilation Communication - Research Paper Example However, for an effective human communication, four things need to be done. The representation of information from the sender should be clear. The receiver must receive the information and ask questions to clarify issues. The mode of delivery should be considerate of the needs and situation of both parties. The information has to be in line at some level with the beliefs of the receiver. Human communication occurs every day, every time, everywhere in the world in successive processes. Human communication on all levels of communication has become a part of our life. Therefore, human communication is concluded as an interconnected form of communication, existing as systems governed by rules and laws, which can portray different messages though the same information is sent. The relationships and interactions in communication seek to achieve goals with reduced costs and increased benefits. (Littlejohn and Karen 151) The theories of communication strengthen this conclusion. Constructivism Jesse Delia theorized this theory of communication in 1982. The communication constructivism theory explains there is a greater capacity in terms of sophisticated communication among people that are cognitively complex in perceiving others that helps them in the achievement of positive outcomes (Littlejohn and Karen 180). These persons may employ the logic of rhetorical message design creating a person-centered message pursuing multiple goals of communication simultaneously. The theory deals with the cognitive processes preceding actual communications in a given situation. Observing and measuring these processes is a painstaking task difficult to complete. The theory however states that deducing that those who are cognitively complex do not always achieve more success. A statement claiming otherwise is a misrepresentation of the truth. Multiple truths varying with the abilities of creation and understanding of messages, which are cognitively complex by the receiver and the communic ator. This is the epistemological assumption of the theory the ontological assumption lies in the ability of some people to act in a rhetorical design. Others make use of conventional or expressive designs. The theory value conscious as it recognizes the capacity of influence of value without subscribing to any specific pattern (Littlejohn and Karen 182). The theory is a scientific one that seeks to explain the attainment of interpersonal communication success (Littlejohn and Karen 216). In the process, it concludes that more success is attained by people who are cognitively complex as they use the logic of rhetoric design in sending messages. However, the application of this theory is a complex undertaking due to the difficult and complex nature of the process of studying cognitive processes. Symbolic interactionism Symbolic interactionism is the learning of interpretation and giving meaning to the world in the process of interactions with others. This theory attempts to explain th e interaction of people through symbols (Littlejohn and Karen 128). The basis of the theory is the human ability to generate a complex set of symbols used to convey messages. In the theory, a family is labeled a unit of interacting personalities. The interactions of the people in their environment evolve the symbols applied in the interpretation of the actions. Understanding human

History, Government, and Economics and their influence on Global and Research Paper

History, Government, and Economics and their influence on Global and Local Issues - Research Paper Example Discussion For decades, Arabs was in control of Arabs and Turks, who made it a part of their Ottoman Empire. It was in 1805 when Muhammad Ali Pasha, an Albanian solider took control of Egypt and declared himself as the â€Å"Sultan† and â€Å"Wali† of the country. Most authors agree that Pasha’s period mark the beginning of modern Egypt (Thompson, 2009). Despite the fact that Pasha was not a liberal or modernist but many of his reforms had great impact on the formation of the current culture of Egypt (Moscovitch, 2007). Pasha nationalized all the land in Egypt thus allowing the government to own all agriculture and crops produced in the country. He focused greatly on the industrial, primarily for building weapons for the army. Pasha sent promising students to Europe for higher studies and brought back those students to take key positions in educational institutions, hospitals, and bureaucracy (Goldschmidt, 2004; Vatikiotis, 1991). However, after the completion of Suez Canal, the British and French started taking a lot of interest in the domestic matters of the Egypt and eventually went to take over the country in 1882. This control remained until the year 1922 when Egypt became an independent country. During the British occupation, trade developed in the country and Immigrants from Southern Europe and Northern Africa flew into the country, which increased the total number of immigrants in the country to 1.5 million in the 1930s (Moscovitch, 2007). The independence was actually the result of 1†919 Egyptian Revolution, which was led by Saad Zaghlul, and other members of Wafd Party† (Moscovitch, 2007). Saad Zaghlul eventually went on to become the first prime minister of the country in the year 1924, one year after the formulation of Egyptian constitution (Vatikiotis, 1991). The British did retain the control of certain matters related to foreign policy of Egypt, wars and partial control of Sudan as well. This remains one of the re asons why even today, anti British feelings are observable in the hearts and minds of the masses of Egypt. During the First World War, British promised that they would take the entire burden over their shoulders, thousands of Egyptian shoulders lost their lives. Even in Second World War, British used Egypt as a base for Allied forces. â€Å"Anti-British feelings continued to grow and provided one of the reasons for the Egyptian Revolution of 1952† (Pateman & El-Hamamsy, 2003). The revolution was aimed at removing King Fahad 1 and making Egypt a republic. Corruption, lavish lifestyles of the rulers, monarchy, and inflation, ignorance of the rulers towards the domestic matters of country and pro British policies were among the other reasons (Moscovitch, 2007; Thompson, 2009). General Naguib took control of the country but Nasser who became the President of the country in 1956 later put him on a house arrest. Naseer Died in 1970 and Anwar Sadat took control after him. Both these leaders, despite being autocrats, remained extremely popular amongst the Egyptian and other Arab people. Sadat launched a war against Israel. Although it ended in a draw but Sadat considered this as his win (Goldschmidt, 2004). Important here to note is that the period of Nasser gave the Arab world what is known as pan-Arab ideology or Nasserism which still influences many Egyptians political and economic circles. The ideology asks for the complete or partial rejection of American and European systems and increased economic, political, and social support for members

Enlightenment and the French Revolution Essay Example | Topics and Well Written Essays - 1000 words

Enlightenment and the French Revolution - Essay Example Enlightenment promoted the ideas of natural law and progress in societal aspects as evident from the writings of Voltaire, Montesquieu and Rousseau. Themes from the enlightenment that contributed to the French revolution include; liberal government, constitutional monarchy, the monarchy, division of power, the Declaration of the Rights of Man, popular sovereignty, The Social Contract and Enlightened Absolutism1. The crumple of the previous establishment contributed to social unrest, economic problems and conflicting ambitions which led to the French Revolution. In the unfolding of the French revolution, the thoughts, ideas, and expressions rose from the enlightenment theorists. The themes of the enlightenment did not share a common idea, and it was not activated by a solitary revolutionary plan. Unlike the other revolutions, the French Revolution occurred in phases, with each amounting to a revolution in itself. The revolutionists repudiated one theme to pursue another. The initial p hase of the French Revolution occurred on the basis of the themes expressed by Montesquieu. This theme recognized a liberal constitutional monarchy as an elaborate government system for people who pursued freedom. This theme proposed the dividing of the sovereign state between many centers of power. This provided a balance from any center turning despotic. The English achieved this model by devolving sovereignty between the parliament, law courts and the Crown. Montesquieu suggested that the French should use their familiar estates such as the aristocratic courts, the crown, chartered cities, church and the landed nobility to advance these themes2. Montesquieu ideas gave a conspicuous share of the power to the aristocrats, a class he belonged to, both in courts and on land. The aristocrats actively took part in the revolution during the early stages. They identified themselves with the cause of national freedom and the interests of their estates. Louis the 16th took the revolution a s an enterprise for his privileged subjects to emulate what the English did by replacing an absolute ruler with a constitutional monarch3. The French Revolution had three main principles; fraternity, liberty and equity. The enlightenment advanced these principles by targeting aspects that did not include institutions such as the church, monarch and feudalism. The enlightenment gave people the power to rule, without, compulsion to operate within reason, interests or logic. This meant that citizens had acquired rights, powers and respect. The enlightenment themes of nationality, patriotism and absolute rights led to the achievement of the objectives of the French Revolution. The French national assembly has the same principles, and it represents the people and restores the nation to the citizens. This had a positive effect on the national assembly by supporting a democratic nation. The enlightenment gave people believe that they could control and comprehend the universe by empirical r esearch and reason. The natural law dominated the physical world, with the likelihood of the social world also dominating the physical world. The enlightenment emphasized the rejection of beliefs in traditional authority because they found the traditional institutions values as irrational. The enlightenment found the institutions as an obstacle for human development and growth. Their mission required them to

INSTRUMENTAL ANALYSIS EXAM Assignment Example | Topics and Well Written Essays - 1000 words

INSTRUMENTAL ANALYSIS EXAM - Assignment Example The Following is the equation showing all the variables: The theoretical application of the equation is mostly observed High Perfomance Liquid Chromatography especially in the separation of similar simple hydrocarbons. Another practical application is in separation of amino acids, and proteins. In split injection for GC, the major purpose is to ensure most of the sample do not flow into the column but instead they pass through the split vent on their way to the atmosphere. This is unlike splitless injection whereby most of the sample volatize and flow into the column. In which case, for split injection the split vent is normally open while for splitless, the vent is closed by a split valve controlled by a computer. The ideal situation for using split injection is when there is need to achieve rapid volatilization besides homogenous mixing of the injected sample with a carrier gas. For splitless mode, an ideal scenario for its use is where there is need to slow down the volatization of the sample. Application: impurity profiling and exploration of degradation. In which case, the gradient flow is used for complex samples with analytes of wide polarities and commonly used for high throughput screening and impurity testing; such as in impurity profiling. The reversed phase makes the use of a polar mobile phase and a non-polar [hydrophobic] stationary phase. Those compound having similar polarity as that evident in mobile phase will be preferentially attracted to it and move faster. For compounds having similar polarity to that of non-polar stationary phase there movement will be delayed because of their strong attraction to the particles. Intuitively, the differences in the relative attraction of each compound for each phase creates a basis for separation by changing the speeds of the analytes. Particle size (dp), is a representation of the mean diameter of the spherical supports used to pack a column. According to the definition,

Lesson plan review Essay Example | Topics and Well Written Essays - 1000 words

Lesson plan review - Essay Example With effective preparations, the teacher presents himself appropriately and with appropriate examples to help the young learners understand the subject. The young learners rely extensive on examples given. The teacher must therefore develop appropriate examples using the vocabularies with the view of improving the young learners’ conceptualization of the words and their usage. Additionally, the preparations included the preparation of the course materials such as the writing board and marker pen, the review of the course books and the writing pads. Reviewing the book beforehand prepares the teacher for the lesson thus preventing confusion in front of the leaners. The teacher will also review past lessons in order to assume a progressive nature to teaching. This will include preparing the contents to fit his or her last lesson. This way, the teacher begins the class by reminding the leaners of the previous class thus testing their memories. Such an approach to teaching makes learning a progressive process with learners always making effort to learn something new, to implement this more effectively, the teacher develops several brief questions in advance to ask the pupils in the course of the lesson. In building an effective background for the lesson, the teacher reads several books to develop and effective understanding of the vocabularies, he or she seeks to teach the young learners. The books will include both the course books among many other relevant books that may contain similar concepts with his or her reach. Extensive reading makes the teacher comfortable with the concepts to teach. Additionally, the extensive reading makes it possible for the teacher to select an appropriate assay for the class. The appropriateness of the essay improves the success of the lessons since the essay will include the appropriate vocabularies and their suitable usage. The teacher will help the pupils understand the story and the

Honors Essay Example for Free

Honors Essay For how I firmly am resolved you know; That is, not bestow my youngest daughter Before I have a husband for the elder: If either of you both love Katharina, Because I know you well and love you well, Leave shall you have to court her at your pleasure. † In these lines, we are introduced to Baptista, a father who wants to find a husband for his oldest daughter, Katharina. The conflict of the play is also introduced as Baptista has decided that his youngest daughter cannot marry until Katharina does. These lines provide readers with some background information on Baptista and his daughters, as well as their familial relationship. They also reveal that while Baptista loves both of his daughter’s, he is at a loss for how to manage his oldest daughter, Katharina. Exposition Act 1, Scene 1 Lucentio: â€Å"Tranio, since for the great desire I had To see fair Padua, nursery of arts, I am arrived for fruitful Lombardy, The pleasant garden of great Italy;† In these lines, we get the first glimpse of where the setting is. The readers get a chance to see the descriptive environment of Italy with the â€Å"pleasant garden†. We are also introduced to Lucentio and Tranio in this part of the play where they are visiting this part of Italy because they had that desire to go there. Rising Action Act 2, Scene 1 KATHARINA: â€Å"Of all thy suitors, here I charge thee, tell Whom thou lovest best: see thou dissemble not. † BIANCA: â€Å"Believe me, sister, of all the men alive I never yet beheld that special face Which I could fancy more than any other. † KATHARINA: â€Å"Minion, thou liest. Ist not Hortensio? † BIANCA: â€Å"If you affect him, sister, here I swear Ill plead for you myself, but you shall have Him. † KATHARINA: â€Å"O then, belike, you fancy riches more:You will have Gremio to keep you fair. † BIANCA: â€Å"Is it for him you do envy me so? Nay then you jest, and now I well perceive You have but jested with me all this while: I prithee, sister Kate, untie my hands. † KATHARINA: â€Å"If that be jest, then all the rest was so. † In these lines, Katharina begins attacking Bianca for no reason at all. Katharina begins questions Bianca out of the blue about which of the suitors does she want the most while Bianca has no clue where this question is coming from, but Bianca assumes that Katharina wants one of the suitors for her and has been acting around her to get what she wanted. Climax Act 3, Scene 2 KATHARINA: â€Å"No shame but mine. I must, forsooth, be forced To give my hand, opposed against my heart, Unto a mad-brain rudesby, full of spleen, Who wooed in haste and means to wed at leisure. I told you, I, he was a frantic fool, Hiding his bitter jests in blunt behavior, And, to be noted for a merry man, He’ll woo a thousand, point the day of marriage, Make friends, invite, and proclaim the banns, Yet never means to wed where he hath wooed. Now must the world point at poor Katherine And say, â€Å"Lo, there is mad Petruchio’s wife, If it would please him come and marry her! † In these lines, Katharina is upset that the groom has not arrived to their wedding yet. And she begins blaming Lucentio for her being forced to marry this guy when she knew what the groom’s plans were. Katharina says that all the groom did it for was the friends and fame of proposing to women then not showing up to the date of the wedding and this made her even more mad, like she wanted to kill somebody. Falling Action Act 4, Scene 1 KATHARINA: â€Å"I pray you, husband, be not so disquiet:The meat was well, if you were so contented. † PETRUCHIO: â€Å"I tell thee, Kate, twas burnt and dried away; And I expressly am forbid to touch it, For it engenders choler, planteth anger;And better twere that both of us did fast,Since, of ourselves, ourselves are choleric, Than feed it with such over-roasted flesh. Be patient; to-morrow t shall be mended,And, for this night, well fast for company: Come, I will bring thee to thy bridal chamber. † In these lines, Katharina and Petruchio have already married and now they are at Petruchio’s house where he will boss around all of his servants. And Katharina is trying to calm Petruchio down because one of the servants brought out burnt meat and he wanted everything to be perfect for his wife. Resolution Act 4, Scene 5 PETRUCHIO: Why, how now, Kate! I hope thou art not mad: This is a man, old, wrinkled, faded, witherd, And not a maiden, as thou sayst he is. KATHARINA: Pardon, old father, my mistaking eyes, That have been so bedazzled with the sun That everything I look on seemeth green: Now I perceive thou art a reverend father; Pardon, I pray thee, for my mad mistaking. In these lines, Petruchio seeks an elderly man in the direction they are heading. But Katharina eyes are blinded by looking at the sun for too long and she mistakes the old man for a little girl. But altogether this is after all the arguing that were going on and now they are spending time together on their way to Katharina’s father’s house.

Investing in Low Income Housing Tax Credits Essay Example for Free

Investing in Low Income Housing Tax Credits Essay Overview of the LIHTC The Low Income Housing Tax Credit (LIHTC) provides incentives for corporations and individuals to invest in the acquisition, development and rehabilitation of affordable housing. The program offers federal tax credits to private equity investors that work with profit or non-profit developers in constructing or renovating rental properties for low-income tenants, those who earn 60 percent or less of the median family income for their county. As of 2010, the program has sparked the construction of over 1.7 million housing units throughout the country. The IRS allocates federal tax credits to Housing Credit Agencies (HCAs) in each state based on its population. HCAs award credits to housing developers based on their Qualified Allocation Plan (QAP), a rigorous and competitive application used to determine which developers will receive the credits. Once credits are acquired, equity investors purchase an interest in the business entity generating the tax credits, namely a limited partnership or limited liability company. The equity generated from the investor’s purchase is used to fund the property development. The tax credits are redeemed annually by investors over a ten-year period following the date that the property becomes operational, or â€Å"placed in service.† The number of tax credits, and subsequently the amount of equity raised, is calculated by computing the eligible basis, or the dollar amount of all depreciable costs of the project (which excludes the cost of land acquisition and operating reserves) minus ineligible sources of funding like grants or federal subsidies. The eligible basis is then multiplied by the percentage of eligible tax credit units in the project (at least 20 percent and up to 100 percent of all units in the building) to calculate the â€Å"qualified basis.† The investor may later claim either 9 percent or 4 percent of the qualified basis amount in tax credits per year, depending on whether the project is a new construction or rehabilitation of an existing structure.. As of March 2012, the average price for a credit is around $.94. Price fluctuates depending on the geography of the deal, the size of the project, the perceived risk of failure, and whether the project is a new construction or rehabilitation. In order to redeem the credits, the property must rent either 20 percent or more of the units to tenants whose incomes are at or below 50 percent or less of the area median gross income, or 40 percent or more of the units to tenants whose incomes are at or below 60 percent or less of the area median gross income. The property must fulfill these and other operational requirements for a 15-year compliance period. Failure to meet these requirements during the compliance period results in an IRS recapture of tax credits plus interest and penalties. Many states offer their own affordable housing tax credits to provide further incentives by increasing potential returns. Projects in certain areas (Difficult Development Areas) receive a 30 percent increase in qualified basis as well. Options for Investment in LIHTC LIHTC transactions are structured such that the developer manages the day-to-day operation of the property while the investor takes a passive role in management and collects virtually all the tax credits. The parties create a limited partnership or limited liability company where the investor is typically a 99.99% limited partner or non-managing member and the developer is a 0.01% general partner or managing member. This method shields investors from liability beyond their capital contributions and allows the developer to maintain control over management affairs. There are two methods of investing in LIHTCs. The first is a direct investment or private placement, where the investor purchases the rights to future tax credits from a single developer in return for an equity contribution. The developer and investor form a limited partnership where the investor retains a 99.99% ownership interest and claims use of 99.99% of the tax credits and other benefits. Large banks and blue-chip corporations are the typical direct investors, mainly because they possess vast amounts of financial and administrative resources. Private placements are adequate namely for single entities that manage their own investment affairs and desire complete transparency throughout the project. These investors generate more net equity since they save costs otherwise incurred by hiring syndicated funds to choose and underwrite the affordable housing development project. Another avenue through which to invest in tax credits is with a syndicator, a financial intermediary that raises funding from many investors, usually on an annual basis, and makes equity capital contributions to multiple affordable housing projects. Indirect Investment through syndicated funds provides a means by which individual investors, small community banks, and small corporations without the resources of large banks can invest in LIHTCs. A syndicator will attract investors and form a limited partnership agreement where the syndicator typically holds a .01% interest as general partner and various investors will comprise the other 99.99% ownership interest as limited partners. This limited partnership syndicate fund will then become the 99.99% limited partner in several LIHTC projects to allow tax credits to pass through to investors. The syndicator investigates the market for affordable housing development and chooses a number of projects in which to invest. The syndicator then directs private equity capital from the limited partners of the syndicate fund to multiple affordable housing developments and returns tax credits back to each investor in proportion to their capital contribution. A few syndicate funds have missions that are aligned with non-profit developers. A syndicator’s experience with affordable housing development is invaluable to investors as it minimizes risk and increases investor confidence. The syndicator does all due diligence and underwriting for the project, so investors can take a passive role. Syndicate funds are ideal for investors that cannot afford to hire relationship managers, compliance specialists, and underwriters to oversee development. A Worthwhile Investment Alternative A tax credit provides a dollar-for-dollar reduction in tax liability, unlike deductions that simply reduce the amount of taxable income for a particular taxable year. Even though investors contribute capital based on the amount paid per tax credit, other tax benefits are transferred to the investor in the form of passive losses and deductions available to any holder of rental real estate property. These include property depreciation deductions, interest expenses, business and maintenance costs, and others. Savings from tax-deductible expenses may not have the financial impact of a tax credit, but it provides a quantifiable saving to the investor that helps add measurable value to tax credits beyond the amount of proportional tax liability they reduce. A qualifying tax credit investment results in a decrease of tax liability. The economic return on the investment, therefore, is not subject to state or federal taxation, unlike dividends or interest income from stocks or bonds. A dollar amount of taxable income is thus inherently less valuable than an identical amount of tax credits. Certain passive loss restrictions and the Alternative Minimum Tax render tax credits less useful for the large majority of individual investors. Nonetheless, LIHTC projects were giving investors returns as high as 25%-30% during the early stages of the program. After growing competition increased pricing in the market for tax credits, yields have consistently shown 4%+ annual returns in recent years. LIHTC projects provide excellent returns for the risk involved, considering other investment alternatives available. While the stock market has historically given investors long-term returns of approximately 10% per year on average, there are sharp fluctuations from year to year. The stock market is also considered a more risky investment in comparison to U.S. treasury bonds or other corporate notes. The yields on these safer bonds are much less than that of the stock market. Investments in tax credits provide an interesting combination of risk mitigation potential and impressive earning yields. Unfortunately, the average investor has no control over the valuation of a certain corporate security, much less the performance of a mutual or index fund. However, private placement investors and syndicate fund managers can and do provide for stringent oversight requirements through contractual obligations imposed on the developer, which in turn helps mitigate risk of project failure. A rise in the valuation of a corporate security usually requires an indicator of increased earnings in the future, whether it is the introduction of a more efficient manufacturing technique, the release or upgrade of a new or existing product, or a similar corporate action. Any increase in the value of a security may be short-lived. An investor only realizes gain after a sale; that gain is taxed. LIHTC projects, on the other hand, do not require entire securities markets to move in order to obtain a profit. Aside from rigorous paperwork and professional fees, the tax credits will eventually fall in the hands of the investors so long as the developer does not fail to meet the various compliance requirements for the specified period. With continuous oversight, investors and fund managers can establish timelines for performance that may readily identify any setbacks or obstacles to completion. This may afford time to expedite construction or development and perhaps cure any potential defects in the plan. On the downside, securities markets provide instant liquidity; LIHTC projects require at least 11 years to harvest all profits. Timelines provide further protection when equity contributions are made in response to the developer meeting certain milestones that render project completion more likely. By disbursing equity in stages, investors exert more control over the project’s development and may elect to alter the course of the project. For instance, the investor may attempt to remove the developer if confidence is undermined. The 15-year compliance period provides an identifiable date of exit, after which all profits (in the form of tax credit use) have been harvested. If investors decide to exit the venture, a secondary market has emerged where an investor may be able to sell the credits to third parties. Legislation passed in 2008 allows limited partners to sell their ownership interests in affordable housing properties without facing recapture so long as the properties continue to operate as affordable housing. This allows a shortened holding period of up to 11 years as long as the property meets the 15-year compliance requirements. These advantages are largely unavailable to stock market investors and make tax credits a safe, viable and profitable investment alternative. These benefits apply uniformly to any tax credit investor. Large Banks, Larger Benefits Large banks and financial institutions are provided with a number of benefits that are generally inapplicable to individual and corporate investors, which in turn make credits more valuable and increases their market price. Banks subject to the Community Reinvestment Act (CRA) are required to engage in certain activities that improve community development. Direct investments and loans made to LIHTC projects, or syndicated funds that invest therein, are considered qualified activities under the CRA. Banks receive positive CRA consideration not only for these loans and investments to community projects, but also when equity is transferred to LIHTC projects that serve broader statewide or regional areas that include a particular bank’s assessment area. An unsatisfactory CRA rating can cause banks to be denied or delayed in undertaking certain business activities like mergers, acquisitions, or the expansion of services. Thus, banks have strong incentives to invest in affordable housing development. LIHTCs are often a top choice for banks, who are obliged to make community development contributions, because not all CRA qualified activities provide similar returns. Financial institutions also benefit from establishing banking relationships with real estate developers. This allows banks to expand their revenues by providing new services to the project like pre-development loans, construction loans, mortgage financing, and credit lines. Bridge loans are especially enticing, where banks loan large amounts of capital to syndicated funds or other Private Placement investors without the cash reserves to make the up-front equity contributions required by developers before any tax credits can be redeemed. Moreover, banks have the financial capacity to create long-lasting resources to assist in affordable housing investment. The underwriting and due diligence for a LIHTC project requires a number of services and incurs various costs. While syndicated funds spread these costs over a number of investors, banks are in a position to pay for these costs themselves. By establishing separate departments to oversee tax credit financing, banks make a one-time investment in an oversight apparatus that will operate over an indefinite number of LIHTC projects. These in-house professionals will increase in value as their experience expands and efficiency improves. Any bank with the capacity to conduct private placement investing in LIHTCs probably does so. Syndicated Funds: Investment Mechanisms for the Unsophisticated Tax Credit Investor A multi-investor syndicated fund provides a number of additional benefits to potential tax credit investors. It is helpful to analogize syndicated funds to mutual funds for the purpose of identifying their advantages. Just like mutual funds, where fund managers collect funding from many investors and create a diversified portfolio that is professionally managed, syndicated funds act in a similar fashion. Syndicated funds invest in multiple affordable housing developments, often in various geographic regions and with different housing developers. This allows investors to spread risk amongst different LIHTC projects so that if one project fails, their entire equity commitment is not lost. Investing with multiple investors allocates risk of loss more evenly and makes LIHTC investments a safe investment alternative. Furthermore, reputable syndicated funds are professionally managed by experienced, sophisticated tax credit professionals that probably have more knowledge about tax credit investing than any prospective investor. Few institutions and entities have enough capital reserves to fund an entire project single-handedly; syndicated funds combine investor contributions, allowing small entities like community banks and mid-size companies to have the flexibility of choosing how much capital to contribute to tax credit investment. The end result is an excellent mechanism through which unconventional tax credit investors can participate in the competitive market for tax credits. Even though funds collect a percentage fee, diversified portfolios will likely contain projects in DDAs to provide marginal increases in tax benefits. Corporations and Tax Credits: A Good[will] Investment. LIHTC are beneficial to corporations because annual tax credits have a positive impact on earnings per share, since credits reduce tax liability without diluting earnings. Tax credits are usually a profitable investment because most companies sustain consistent tax liability for years on end. Tax credit investment declined during the 2008 market downturn, but has steadily increased with general economic improvement. Companies like Google, Verizon, Liberty Mutual, and others have invested in affordable housing developments across the country. An additional and measurable economic benefit to corporations is the increased value of a trademark or goodwill associated with a company that invests in community development. This type of investment may also attract positive publicity and media coverage, which in turn may increase corporate securities valuation. Large corporations are also in a coveted position to undertake direct investment and avoid paying fees to syndicated funds. Safe, but Not That Safe. While LIHTC investments may be safer than comparable investment with similar yields, the risks must be identified for informed decision-making. Potential tax credit recapture and loss is the greatest risk—the project must maintain specific requirements over a period of 15 years and strict deadlines must be met. The investor must assume the risk of any impediment to completion of construction, no matter how farfetched, and recapture liability remains with the initial investor even if the credits are sold on the secondary market. Risk of failure extends for a prolonged period of 15 years where strict operational requirements must be met. Due to the speculation involved in predicting construction costs, securing subsequent financing, and meeting compliance deadlines in light of potentially unforeseen adverse events, a project must be very precisely calculated to increase the chance of success. Entities and individuals that invest in syndicated funds are in a better position to identify risks due to stringent government-imposed requirements for prospectuses and offering memoranda to be distributed to all potential investors. Inexperienced syndicators might overlook a key responsibility that can cause the project to fail. Repurchase obligations arguably provide a false sense of security to investors because most developers have small balance sheets and cannot afford to match the investor’s contributions. The risks involved in LIHTC investment can be mitigated with proper planning, continuous oversight, and an experienced syndicator. Banks with in-house asset management units can oversee property maintenance. Although investors cede lien priority to the primary mortgage holder, foreclosure rates are relatively low and occupancy rates relatively high. Tax credit projects are viable investment alternatives. [ 1 ]. Catherine Such, Low Income Housing Tax Credits. Federal Reserve Bank of San Francisco Community Investments (Mar. 2002), http://www.frbsf.org/community/investments/lihtc.html. [ 2 ]. Michael J. Novogradac, Investing in Low-Income Housing Tax Credits, OCC Community Developments. (Mar. 2010), http://www.occ.gov/static/community-affairs/community-developments-investments/spring06/ investinginlowincome.htm. [ 3 ]. Id., See Understanding Low Income Housing Tax Credits: How to Secure Equity Investments and Evaluate Syndication Options. Corporation for Supportive Housing (Mar. 2006), http://documents.csh.org/documents/ ResourceCenter/DevOpsToolkit/UnderstandingLIHTCspdf.pdf. [ 4 ]. Sherrie L. Rhine, Low-Income Housing Tax Credits: Affordable Housing Investment Opportunities for Banks. Community Affairs Development (Feb. 2008), Found in Real Estate Law Clinic Course Reader, at p. 75. [ 5 ]. Lance Bocarsly, Real Estate Law Clinic Lecture. (Thursday September 6, 2012, 4:30pm.) [ 6 ]. Understanding Low Income Housing Tax Credits: How to Secure Equity Investments and Evaluate Syndication Options, supra, Corporation for Supportive Housing (Mar. 2006.) [ 7 ]. In actuality, the percentage of qualified basis that determines the amount of tax credits is not exactly 9 or 4 percent. The rate for the 4 percent credit floats in accordance with the Applicable Federal Rate and may fluctuate above or below 4 percent. The 9 percent credit will float beginning in 2013, although current legislation has been proposed to extend the 9 percent credit floor. House of Representatives Bill 3661 is making its way through Congress. See Mark Anderson, Tax Credit at Risk for Low Income Housing. Finance and Commerce (April 26, 2012, 4:35 pm). Available at http://finance-commerce.com/2012/04/tax-credit-at-risk-for-low-income-housing/. [ 8 ]. Low-Income Housing Tax Credit: Facts Figures, Novogradac Affordable Housing Resource Center. http://www.novoco.com/low_income_housing/facts_figures/index.php. [ 9 ]. Tim Iglesias and Rochelle E. Lento, The Legal Guide to Affordable Housing Development. Found in Real Estate Law Clinic Course Reader, at p. 28. [ 10 ]. Rhine, supra, Low-Income Housing Tax Credits: Affordable Housing Investment Opportunities for Banks.† Found in Real Estate Law Clinic Course Reader, at p. 87. [ 11 ]. Understanding Low Income Housing Tax Credits: How to Secure Equity Investments and Evaluate Syndication Options, supra, at p. 4. [ 12 ]. Id. [ 13 ]. Id. [ 14 ]. Novogradac, supra, Investing in Low-Income Housing Tax Credits. [ 15 ]. James L. Logue III, How LIHTC Funds Can Help Banks Invest in Affordable Housing. OCC: Community Developments (Spring 2006). http://www.occ.gov/static/community-affairs/community-developments-investments/ spring06/howlihtcfunds.htm. [ 16 ]. Id.

History And Fundamental Concept Of Acoustic Music Essay

History And Fundamental Concept Of Acoustic Music Essay Acoustics is the study of the physical characteristics of sounds. Its deal with things like the frequency, amplitude and complexity of sound waves and how sound waves interact with various environments. It can also be refer casually and generally to the over-all quality of sound in a given place. Someone might say in a non-technical conversation: I like to perform at Smith Hall; the acoustics are very brights.   From the everyday sounds of speech, the hum of appliances, to the sounds caused by wind and water, we are immersed in an ocean of sounds. Yet, what is sound, and how do we hear it? Why do two instruments playing the same note sound different? In this lab you will learn the basics of the answers to these questions. To answer the later question, we will analyze sound as an audio engineer would, through a technique called harmonic analysis. Harmonic analysis allows sound to be understood from a quantitative perspective. Also, we will come to an understanding of why the way a computer analyses sound is similar to how our ears analyse sound. I will start this genre presentation by introducing the genre acoustic music. It isnt really a genre, as music played with acoustic instruments can sound very different, but I chose to call the post this, as acoustic music have many similarities. If you like these songs, you should really check out  Bedtime Tunes, which is a site only with songs like these. So without further ado, here are 11 songs with acoustic guitars, pianos, strings and beautiful voices: First here is Antony Hearty with his band  Antony and the Johnsons. Antony Hegarty is a very special person, he is transgendrous, and his voice is absolutely amazing. Unfortunately I havent seen him live, but Ive heard that almost all of the audience comes out from the concert crying Or Acoustics (from Greek pronounced acoustics meaning of or for hearing, ready to hear) is the science that studies sound, in particular its production, transmission, and effects. Sound can often be considered as something pleasant; an example of this would be music. In that case a main application is room acoustics, since the purpose of room acoustical design and optimisation is to make a room sound as good as possible. But some noises can also be unpleasant and make people feel uncomfortable. In fact noise reduction is a major challenge, particularly within the transportation industry as people are becoming more and more demanding. Furthermore ultrasounds also have applications in detection, such as sonar systems or non-destructive material testing. 2. History of acoustic If he first mentioned the Acoustique Art in his  Advancement of Learning  (1605), Francis Bacon (1561-1626) was drawing a distinction between the physical acoustics he expanded in the  Sylva Sylva rum  (1627) and the harmonics of the Pythagorean mathematical tradition. The Pythagorean tradition still survived in Bacons time in the works of such diverse people as Gioseffo Zarlino (1517-1590), Renà © Descartes (1596-1650), and Johannes Kepler (1571-1630). In Bacons words: The nature of sounds, in some sort, [hath  been with some  diligence  inquired,] as far as concerneth music. But the nature of sounds in general hath been superficially observed. It is one of the subtlest pieces of nature. Bacons Acoustique Art was therefore concerned with the study of immusical sounds and with experiments in the migration in sounds so that the harnessing of sounds in buildings (architectural acoustics) by their enclosure in artificial channels inside the walls or in the environment (hydraulic acoustics). Aim of Baconian acoustics was to catalog,  quantify, and shape human space by means of sound. This stemmed from the  echometria,  an early modern tradition of literature on echo, as studied by the mathematicians Giuseppe Biancani (1566-1624), Marin Mersenne (1588-1648), and Daniello Bartoli (1608-1685), in which the model of optics was applied in acoustics to the behaviour of sound. It was in a sense a historical  antecedent  to Isaac Newtons (1642-1727) analogy between colours and musical tones in  Upticks  (1704). Athanasius Kirchers (1601-1680)  Phonurgia Nova  of 1673 was the outcome of this tradition. Attacking British acoustics traditions, Kirsches argued that the origin of the Acoustical Art lay in his own earlier experiments with sounding tubes at the Collegio Romano in 1649 and sketched the ideology of a Christian baroque science of acoustics designed to dominate the world by exploiting the boundless  powers of sound 17th-century empirical observations and mathematical explanations of the simultaneous vibrations of a string at different frequencies were important in the development of modern experimental acoustics. The earliest contribution in this branch of acoustics was made by Mersenne, who derived the mathematical law governing the physics of a vibrating string. Around 1673 Christian Huygens (1629-1695) estimated its absolute frequency, and in 1677 John Wallis (1616-1703) published a report of experiments on the overtones of a vibrating string. In 1692 Francis Roberts (1650-1718) followed with similar findings. These achievements paved the way for the 18th-century  acoustique  of Joseph Sauveur (1653-1716) and for the work of Brook Taylor (1685-1731), Leonhard Euler (1707-1783), Jean Le Rond d Alembert  (1717-1783), Daniel Bernoulli (1700-1782), and Giordani Riccati (1709-1790), who all attempted to determine mathematically the fundamental tone and the overtones of a  sonorous  body. Modern experimental acoustics sought in nature, a physical law of the sounding body, the perfect harmony that in the Pythagorean tradition sprang from the mind of the geometrizing God. Experimental epistemology in acoustics also influenced the studies of the anatomy and physiology of hearing, especially the work of Joseph-Guichard Duverney (1648-1730) and Antonio Maria Valsalva (1666-1723), that in the 19th century gave rise to physiological and psychological acoustics. 3. Fundamental concepts of acoustics The study of acoustics revolves around the generation, propagation and reception of mechanical waves and vibrations. The steps shown in the above diagram can be found in any acoustical event or process. There are many kinds of cause, both natural and volitional. There are many kinds of transduction process that convert energy from some other form into acoustic energy, producing the acoustic wave. There is one fundamental equation that describes acoustic wave propagation, but the phenomena that emerge from it are varied and often complex. The wave carries energy throughout the propagating medium. Eventually this energy is transduced again into other forms, in ways that again may be natural and/or volitionally contrived. The final effect may be purely physical or it may reach far into the biological or volitional domains. The five basic steps are found equally well whether we are talking about an earthquake, a submarine using sonar to locate its foe, or a band playing in a rock concert. The central stage in the acoustical process is wave propagation. This falls within the domain of physical acoustics. In  fluids, sound propagates primarily as a pressure wave. In solids, mechanical waves can take many forms including  longitudinal waves,  transverse HYPERLINK http://www.answers.com/topic/transverse-wavewaves  and  surface waves. Acoustics looks first at the pressure levels and frequencies in the sound wave. Transduction processes are also of special importance. 4. Application of Acoustics The science of sound and hearing. This treats the sonic qualities of rooms and buildings, and the transmission of sound by the voice, musical instruments or electric means. Voice is caused by vibration, which is communicated by the sound source to the air as fluctuations in pressure and then to the listeners ear-drum. The faster the vibration (or the greater its frequency) the higher the pitch. The greater the amplitude of the vibration, the louder the sound. Mostly musical sound consist not only of regular vibration at one particular frequency but also vibration at various multiples of that frequency. The frequency of middle C is 256 cycles per second (or Hertz, abbreviated Hz) but when one hears middle C there are components of the sound vibrating at 512 Hz, 768 Hz etc (see  Harmonics). The presence and relative strength of these harmonics determine the quality of a sound. The difference in quality, for example. between a flute, an oboe and a clarinet playing the same note is tha t the flutes tone is relatively pure (i.e. has few and weak harmonics), the oboe is rich in higher harmonics and the clarinet has a preponderance of odd-numbered harmonics. Their different harmonic spectra are caused primarily by the way the sound vibration is actuated (by the blowing of air across an edge with the flute, by the oboes double reed and the clarinets single reed) and by the shape of the tube. Where the players lips are the vibrating agent, as with most brass instruments, the tube can be made to sound not its fundamental note but other harmonics by means of the players lip pressure. The vibrating air column is only one of the standard ways of creating musical sound. The longer the column the lower the pitch; the players can raise the pitch by uncovering hole in the tubes. With that human voice, air is set in motion by means of the vocal cords, folds in the throat which convert the air stream from the lungs into sound; pitch is controlled by the size and shape of the cavities in the pharynx and mouth. For a string instrument, such as the violin, the guitar or the piano, the string is set in vibration by (respectively) bowing, plucking or striking; the tighter and thinner the string, the fasters it will vibrate. By pressing the string against the fingerboard and thus making the operative string-length shorter, the player can raise the pitch. With a percussion instrument, such as the drum or the xylophone, a membrane or a piece of wood is set in vibration by striking; sometimes the vibration is regular and gives a definite pitch but sometimes the pitch is indefinit e. In the recording of sound, the vibration patterns set up by the instrument or instruments to be recorded are encode by analogue (or, in recent recordings. digitally) in terms of electrical impulse. This information can then be stored, in mechanical or electrical form; this can then be decoded, amplified and conveyed to loudspeakers which transmit the same vibration pattern to the airs. The study of the acoustics of buildings is immensely complicated because of the variety of ways in which sound is conveyed, reflected, diffused, absorbed etc. The design of buildings for performances has to take account of such matters as the smooth and even representation of sound at all pitches in all parts of the building, the balance of clarity and blend and the directions in which reflected sound may impinge upon the audiences. The use of particular material (especially wood and artificial acoustical substances) and the breaking-up of surfaces, to avoid certain types of reflection of sounds, play a part in the design of concert halls, which however remains an uncertain art in which experimentation and tuning (by shifting surface, by adding resonators etc.) is often necessary. The term acoustic is sometimes used, of a recording or an instrument, to mean not electric: an acoustic recording is one made before electric methods came into use, and an acoustic guitar is one not electri cally amplified. 4.1 Theory of acoustic The area of physics known as acoustics is devoted to the study of the production, transmission, and reception of sound. Thus, wherever sound is produced and transmitted, it will have an effect some whereas, even if there is no one present to hear it. The medium of sound transmissions is an all-important, key factor. Among the areas addressed within the realm of acoustics are the production of sounds by the human sounds and various instrument, as like the reception of sound waves by the human ear. 5. Working concept of acoustic Sound waves are an example of a larger phenomenon known as wave motion, and wave motion is, in turn, a subset of harmonic motion-that is, repeated movement of a particle about a position of equilibrium, or balance. In the case of sound, the particle is not an item of matter, but of energy, and wave motion is a type of harmonic movement that carries energy from one place to another without actually moving any matter. Particles in waves experience  oscillation, harmonic motion in one or more dimensions. Oscillation itself involves little movement, though some particles do move short distances as they interact with other particles. Primarily, however, it involves only movement in place. The waves themselves, on the other hand, move across space, ending up in a position different from the one in which they started. A  transverse  wave forms a regular up-and-down pattern in which the oscillation is  perpendicular  to the direction the wave is moving. This is a fairly easy type of wave to visualize: imagine a curve moving up and down along a straight line. Sound waves, on the other hand, are  longitudinal  waves, in which oscillation occurs in the same direction as the wave itself. These oscillations are really just fluctuations in pressure. As a sound wave moves through a medium such as air, these changes in pressure cause the medium to experience alternations of density and rarefaction  (a decrease in density). It , in turn, produces vibrations in the human ear or in any other object that receives the sound waves. 5.1 Properties of Sound Waves 5.1.1 Cycle and Period The term cycle has a definition that varies slightly, depending on whether the type of motion being discussed is oscillation, the movement of transverse waves, or the motion of a longitudinal sound wave. In the latter case, a cycle is defined as a single complete  vibration. A period (represented by the symbol  T) is the amount of time required to complete one full cycle. The period of a sound wave can be mathematically related to several other aspects of wave motion, including wave speed, frequency, and  wavelength. 5.1.2 The Speed of Sound in Various Medium People often refer to the speed of sound as though this were a fixed value like the speed of light, but, in fact, the speed of sound is a function of the medium through which it travels. What people ordinarily  mean by the speed of sound is the speed of sound through air at a specific temperature. For sound travelling at sea level, the speed at 32 °F (0 °C) is 740 MPH (331 m/s), and at 68 °F (20 °C), it is 767 MPH (343 m/s). In the essay on  aerodynamics, the speed of sound for aircraft was given at 660 MPH (451 m/s). This is much less than the figures given above for the speed of sound through air at sea level, because obviously, aircraft are not flying at sea level, but well above it, and the air through which they pass is well below freezing temperature. The speed of sound through a gas is proportional to the square root of the pressure divided by the density. According to Gay-Lussacs law, pressure is directly related to temperature, meaning that the lower the pressure, the lower the temperature-and vice versa. At high altitudes, the temperature is low, and, therefore, so is the pressure; and, due to the relatively small gravitational pull that Earth exerts on the air at that height, the density is also low. Hence, the speed of sound is also low. It follows that the higher the pressure of the material, and the greater the density, the faster sound travels through it: thus sound travels faster through a liquid than through a gas. This might seem a bit surprising: at first  glance, it would seem that sound travels fastest through air, but only because we are just more  accustomed  to hearing sounds that travel through that medium. The speed of sound in water varies from about 3,244 MPH (1,450 m/s) to about 3,355 MPH (1500 m/s). Sound travels even faster through a solid-typically about 11,185 MPH (5,000 m/s)-than it does through a liquid. 5.1.3 Frequency Frequency (abbreviated  f) is the number of waves passing through a given point during the interval of one second. It is measured in Hertz (Hz), named after nineteenth-century German physicist Heinrich Rudolf Hertz (1857-1894) and a Hertz is equal to one cycle of oscillation per second. Higher frequencies are expressed in terms of  kilohertz  (kHz; 103  or 1,000 cycles per second) or  megahertz(MHz; 106  or 1 million cycles per second.) The human ear is capable of hearing sounds from 20 to approximately 20,000 Hz-a relatively small range for a mammal, considering that bats, whales, and dolphins can hear sounds at a frequency up to 150  kHz. Human speech is in the range of about 1 kHz, and the 88 keys on a piano vary in frequency from 27 Hz to 4,186 Hz. Each note has its own frequency, with middle C (the white key in the very middle of a piano keyboard) at 264 Hz. The quality of harmony or  dissonance  when two notes are played together is a function of the relationship between the frequencies of the two. Frequencies below the range of human  audibility  are called  infrasound, and those above it are referred to as  ultrasound. There are a number of practical applications for  ultrasonic  technology in medicine, navigation, and other fields. 5.1.4 Wavelength Wavelength (represented by the symbol ÃŽÂ », the Greek letter lambda) is the distance between a crest and the adjacent crest, or a trough and an adjacent trough, of a wave. The higher the frequency, the shorter the wavelength, and vice versa. Thus, a frequency of 20 Hz, at the bottom end of human audibility, has a very large wavelength: 56 ft. (17 m). The top end frequency of 20,000 Hz is only 0.67 inches (17 mm). There is a special type of high-frequency sound wave beyond ultrasound: hyper sound, which has frequencies above 107  MHz, or 10 trillion Hz. It is almost impossible for hyper sound waves to travel through all but the densest media, because their wavelengths are so short. In order to be transmitted properly, hyper sound requires an extremely tight molecular structure; otherwise, the wave would get lost between molecules. Wavelengths of visible light, part of the electromagnetic spectrum, have a frequency much higher even than hyper sounds waves: about 109  MHz, 100 times greater than for hyper sound. This, in turn, means that these wavelengths are incredibly small, and this is why light waves can easily be blocked out by using ones hand or a  curtain. The same does not hold for sound waves, because the wavelengths of sounds in the range of human audibility are comparable to the size of ordinary objects. To block out a sound wave, one needs something of much greater dimensions-width, height, and depth-than a mere cloth curtain. A thick concrete wall, for instance, may be enough to block out the waves. Better still would be the use of materials that absorb sound, such as cork, or even the use of machines that produce sound waves which destructively interfere with the offending sounds. 5.1.5 Amplitude and Intensity Amplitude is critical to the understanding of sound, though it is mathematically independent from the parameters so far discussed. Defined as the maximum displacement of a vibrating material, amplitude  is the size of a wave. The greater the amplitude, the greater the energy the wave contains: amplitude indicates intensity, commonly known as volume, which is the rate at which a wave moves energy per unit of a cross-sectional area. Intensity can be measured in watts per square meter, or W/m2. A sound wave of minimum intensity for human audibility would have a value of 10à ¢Ã‹â€ Ã¢â‚¬â„¢12, or 0.000000000001, W/m2. As a basis of comparison, a person speaking in an ordinary tone of voice generates about 10à ¢Ã‹â€ Ã¢â‚¬â„¢4, or 0.0001, watts. On the other hand, a sound with an intensity of 1 W/m2  would be powerful enough to damage a persons ears. 5.2 Real-Life Applications 5.2.1 Decibel Levels For measuring the intensity of a sound as experienced by the human ear, we use a unit other than the watt per square meter, because ears do not respond to sounds in a linear, or straight-line, progression. If the intensity of a sound is doubled, a person perceives a greater intensity, but nothing approaching twice that of the original sound. Instead, a different system-known in mathematics as a logarithmic scale-is applied. In measuring the effect of sound intensity on the human ear, a unit called the  decibel  (abbreviated dB) is used. A sound of minimal audibility (10à ¢Ã‹â€ Ã¢â‚¬â„¢12  W/m2) is assigned the value of 0 dB, and 10 dB is 10 times as great-10à ¢Ã‹â€ Ã¢â‚¬â„¢11  W/m2. But 20 dB is not 20 times as intense as 0 dB; it is 100 times as intense, or 10à ¢Ã‹â€ Ã¢â‚¬â„¢10  W/m2. Every increase of 10 dB thus indicates a  tenfold  increase in intensity. Therefore, 120 dB, the maximum decibel level that a human ear can endure without experiencing damage, is not 120 times as great as the minimal level for audibility, but 1012  (1  trillion) times as great-equal to 1 W/m2, referred to above as the highest safe intensity level. Of course, sounds can be much louder than 120 dB: a rock band, for instance, can generate sounds of 125 dB, which is 5 times the maximum safe decibel level. A gunshot,  firecracker, or a jet-if one is exposed to these sounds at a sufficiently close proximity-can be as high as 140 dB, or 20 times the maximum safe level. Nor is 120 dB safe for prolonged periods: hearing experts indicate that regular and repeated exposure to even 85 dB (5 less than a lawn  mower) can cause permanent damage to ones hearing. 5.3 Production of Sound Waves 5.3.1 Musical Instruments Sound waves are vibrations; thus, in order to produce sound, vibrations must be produced. For a stringed instrument, such as a guitar,  harp, or piano, the strings must be set into vibration, either by the musicians fingers or the mechanism that connects piano keys to the strings inside the case of the piano. In other woodwind instruments and horns, the musician causes vibrations by blowing into the mouthpiece. The exact process by which the vibrations emerge as sound differs between woodwind instruments, such as a  clarinet  or  saxophone  on the one hand, and brass instruments, such as a trumpet or  trombone  on the other. Then there is a drum or other percussion instrument, which produces vibrations, if not musical notes. 5.3.2 Electronic Amplification Sound is a form of energy: thus, when an automobile or other machine produces sound  incidental  to its operation, this actually represents energy that is lost. Energy itself is conserved, but not all of the energy put into the machine can ever be realized as useful energy; thus, the automobile loses some energy in the form of sound and heat. The fact that sound is energy, however, also means that it can be converted to other forms of energy, and this is precisely what a  microphone  does: it receives sound waves and converts them to electrical energy. These electrical signals are transmitted to an  amplifier, and next to a  loudspeaker, which turns electrical energy back into sound energy-only now, the intensity of the sound is much greater. Inside a loudspeaker is a  diaphragm, a thin, flexible disk that vibrates with the intensity of the sound it produces. When it pushes outward, the diaphragm forces nearby air molecules closer together, creating a high-pressure region around the loudspeaker. (Remember, as stated earlier, that sound is a matter of fluctuations in pressure.) The diaphragm is then pushed backward in response, freeing up an area of space for the air molecules. These, then, rush toward the diaphragm, creating a low-pressure region behind the high-pressure one. The loudspeaker thus sends out alternating waves of high and low pressure, vibrations on the same frequency of the original sound. 5.3.3 The Human Voice As impressive as the electronic means of sound production are (and of course the description just given is highly simplified), this technology pales in comparison to the greatest of all sound-producing mechanisms: the human voice. Speech itself is a highly complex physical process, much too involved to be discussed in any depth here. For our present purpose, it is important only to recognize that speech is essentially a matter of producing vibrations on the vocal cords, and then transmitting those vibrations. Before a person speaks, the brain sends signals to the vocal cords, causing them to  tighten. As speech begins, air is forced across the vocal cords, and this produces vibrations. The action of the vocal cords in producing these vibrations is, like everything about the miracle of speech,  exceedingly involved: at any given moment as a person is talking, parts of the vocal cords are opened, and parts are closed. The sound of a persons voice is affected by a number of factors: the size and shape of the sinuses and other cavities in the head, the shape of the mouth, and the placement of the teeth and tongue. These factors influence the production of specific frequencies of sound, and result in differing vocal qualities. Again, the mechanisms of speech are highly complicated, involving action of the diaphragm (a partition of muscle and tissue between the chest and  abdominal  cavities),  larynx, pharynx,  glottis, hard and soft palates, and so on. But, it all begins with the production of vibrations. 6. Propagation: Does It Make a Sound As stated in the introduction, acoustics is concerned with the production, transmission (sometimes called propagation), and reception of sound. Transmission has already been examined in terms of the speed at which sound travels through various media. One aspect of sound transmission needs to be reiterated, however: for sound to be propagated, there must be a medium. There is an age-old philosophical question that goes something like this: If a tree falls in the woods and there is no one to hear it, does it make a sound? In fact, the question is not a matter of philosophy at all, but of physics, and the answer is, of course, yes. As the tree falls, it releases energy in a number of forms, and part of this energy is manifested as sound waves. Consider, on the other hand, this rephrased version of the question: If a tree falls in a vacuum-an area completely  devoid  of matter, including air-does it make a sound? The answer is now a qualified no: certainly, there is a release of energy, as before, but the sound waves cannot be transmitted. Without air or any other matter to carry the waves, there is literally no sound. Hence, there is a great deal of truth to the tagline associated with the 1979 science-fiction film  Alien  : In space, no one can hear you scream. Inside an astronauts suit, there is pressure and an oxygen supply; without either, the astronaut would  perish  quickly. The pressure and air inside the suit also allow the astronaut to hear sounds within the suit, including communications via microphone from other astronauts. But, if there were an explosion in the vacuum of deep space outside the spacecraft, no one inside would be able to hear it. 7. Reception of Sound 7.1 Recording Earlier the structure of electronic  amplification  was described in very simple terms. Some of the same processes-specifically, the conversion of sound to electrical energy-are used in the recording of sound. In sound recording, when a sound wave is emitted, it causes vibrations in a diaphragm attached to an electrical  condenser. This causes variations in the electrical current passed on by the condenser. These electrical pulses are processed and ultimately passed on to an electromagnetic recording head. The magnetic field of the recording head extends over the section of tape being recorded: what began as loud sounds now produce strong magnetic fields, and soft sounds produce weak fields. Yet, just as electronic means of sound production and transmission are still not as impressive as the mechanisms of the human voice, so electronic sound reception and recording technology is a less magnificent device than the human ear. 8. How the Ear Hears As almost everyone has noticed, a change in altitude (and, hence, of atmospheric pressure) leads to a strange popping sensation in the ears. Usually, this condition can be overcome by swallowing, or even better, by  yawning. This opens the  Eustachian tube, a  passageway  that maintains atmospheric pressure in the ear. Useful as it is, the Eustachian tube is just one of the human ears many parts. The funny shape of the ear helps it to capture and  amplify  sound waves, which  pass-through  the ear canal and cause the  eardrum  to vibrate. Though humans can hear sounds over a much wider range, the optimal range of audibility is from 3,000 to 4,000 Hz. This is because the structure of the ear canal is such that sounds in this frequency produce  magnified  pressure fluctuations. Thanks to this, as well as other specific properties, the ear acts as an amplifier of sounds. Beyond the eardrum is the middle ear, an  intricate  sound-reception device containing some of the smallest bones in the human body-bones commonly known, because of their shapes, as the hammer, anvil, and stirrup. Vibrations pass from the hammer to the anvil to the stirrup, through the membrane that covers the oval window, and into the inner ear. Filled with liquid, the inner ear contains the semi-circular canals responsible for providing a sense of balance or orientation: without these, a person literally would not know which way is up. Also, in the inner ear is the  cochlea, an organ shaped like a  snail. Waves of pressure from the fluids of the inner ear are passed through the cochlea to the  auditory  nerve, which then transmits these signals to the brain. The basilar membrane of the cochlea is a particularly  wondrous  instrument, responsible in large part for the ability to discriminate between sounds of different frequencies and intensities. The surface of the membrane is covered with thousands of fibres, which are highly sensitive to disturbances, and it transmits information concerning these disturbances to the auditory nerve. The brain, in turn, forms a relation between the position of the nerve ending and the frequency of the sound. It also equates the degree of disturbance in the  basilar membrane  with the intensity of the sound: the greater the disturbance, the louder the sounds.