Winds Essays - Wind, Atmospheric Dynamics, Trade Winds,

Winds Michael Zakrzewski March 31, 1999 Mr. Oshogobor G001 Earth Science Report: Winds There are two general types of winds, local winds and global winds. Local winds blow from any direction and usually cover short distances. Global winds blow from a specific direction and almost always cover longer distances than local winds. Both local winds and global winds are caused by differences in air pressure due to unequal heating of the atmosphere. During the day, the air over a land area is often warmer than the air over a nearby lake or sea. The air is warmer because the land heats up faster than the water. As the warm air over the land rises, the cooler air over the sea moves inland to tale its place. This flow of air from the sea to the land is called a sea breeze. During the night, the land cools off faster than the water. The air over the sea is now warmer than the air over the land. This warm air over the sea rises. The cooler air over the land moves to replace the rising warm air over the sea. A flow of air from the land to the sea is called a land breeze. A land breeze is also called an off-shore breeze. The name of a wind tells you from which direction the wind is blowing. A land breeze blows from the land to the sea. A sea breeze blows from the sea to the land. Most local winds that we are familiar with are named according to the direction from which they are blowing. A major land and sea breeze is called a monsoon. A monsoon is a seasonal wind. During part of the year, a monsoon blows from the land to the ocean. During the rest of the year, it blows from ocean to the land. When a monsoon blows from the ocean to the land, it brings in warm, moist air. This results in a rainy season with warm temperatures and huge amounts of rain. The rainy season is important to many because it provides the water needed for farming. Monsoon winds are very common in Asia. Unequal heating of the Earth's surface also forms large global wind systems. In areas near the equator the sun is almost directly overhead for most of the year. The direct rays of the sun heat the Earth's surface. The polar regions receive slanting rays from the sun. The slanting rays do not heat the Earth's surface as rapidly as the direct rays do. So temperatures near the poles are lower than those near the equator. At the equator, the warm air rises and moves toward the poles. At the poles, the cooler air sinks and moves toward the equator. This movement produces a global pattern of air circulation. Global winds do not move directly from north to south or from south to north. Because the Earth rotates, or spins on its axis, from west to east, the paths of the winds shift in relation to the Earth's surface. All winds in the Northern Hemisphere curve to the right as thy move. In the Southern Hemisphere, winds curve to the left. This shift in wind direction is called Coriolis effect. The Coriolis effect is the apparent shift in the path of any fluid or object moving above the surface of the Earth due to the rotation of the Earth. At any particular time or place local conditions may influence and change the wind pattern. At the Equator surface winds are quite calm. These winds are called the doldrums. A belt of air around the equator receives much of the sun's radiant energy. The warm rising air produces a low pressure area that extends many kilometers north and south of the Equator. Cooler high pressure air would normaly flow into such an area creating winds. But the cooler air is warmed so rapidly near the Equator that the winds which form cannot move into the low pressure area. As a result any winds that do not form are weak. About 30 degrees north and south of the equator the warm air rising from the equator cools and begins to sink. Here, the sky is usually clear. There are few

8 Principles of Stoicism

8 Principles of Stoicism The Stoics were people who followed a realistic but morally idealistic way of living, a philosophy of life developed by Hellenistic Greeks and eagerly embraced by the Romans. The Stoic philosophy had a strong appeal to Christian theologians of the early 20th century, which echoes in our own modern culture. I believe that [Stoicism] represents a way of looking at the world and the practical problems of life which possesses still a permanent interest for the human race, and a permanent power of inspiration. I shall approach it, therefore, rather as a psychologist than as a philosopher or historian.... I shall merely try as best I can to make intelligible its great central principles and the almost irresistible appeal which they made to so many of the best minds of antiquity. Knapp 1926 Stoics: From Greek to Roman Philosophy The philosophers who followed Aristotle (384-322 BC) were known as the Peripatetics, named for their walking around the colonnades of the Athenian Lyceum. The Stoics, on the other hand, were named for the Athenian Stoa Poikile or painted porch, where one of the founders of the Stoic philosophy, Zeno of Citium (on Cyprus) (344-262 BC), taught. While the Greeks may have developed the philosophy of Stoicism from the earlier philosophies, we only have fragments of their teachings. Their philosophy is often divided into three parts, logic, physics, and ethics. Many Romans adopted the philosophy as a way of life or art of living (tà ©chnà ª peri tà ³n bion in the ancient Greek)as it was intended by the Greeksand it is from the complete documents of imperial period Romans, especially the writings of Seneca (4 BC-65 AD), Epictetus (c. 55-135) and Marcus Aurelius (121-180) that we gain most of our information about the ethical system of the original Stoics. Stoic Principles Today, Stoic principles have found their way into accepted popular wisdom, as goals to which we should aspireas in the Serenity Prayer of Twelve Step programs. Below are eight of the main ideas in the area of ethics that were held by the Stoic philosophers. Nature - Nature is rational. Law of Reason - The universe is governed by the law of reason. Man cant actually escape its inexorable force, but he can, uniquely, follow the law deliberately. Virtue - A life led according to rational nature is virtuous. Wisdom - Wisdom is the the root virtue. From it spring the cardinal virtues: insight, bravery, self-control, and justice. Apathea - Since passion is irrational, life should be waged as a battle against it. Intense feeling should be avoided. Pleasure - Pleasure is not good. (Nor is it bad. It is only acceptable if it doesnt interfere with our quest for virtue.) Evil - Poverty, illness, and death are not evil. Duty - Virtue should be sought, not for the sake of pleasure, but for duty. Briefly, their notion of morality is stern, involving a life in accordance with nature and controlled by virtue. It is an ascetic system, teaching perfect indifference (APATHEA) to everything external, for nothing external could be either good or evil. Hence to the Stoics both pain and pleasure, poverty and riches, sickness and health, were supposed to be equally unimportant. Source: Internet Encylcopedia of Stoicism Serenity Prayer and Stoic Philosophy The Serenity Prayer, attributed to the Christian theologist Reinhold Niebuhr [1892-1971], and published by Alcoholics Anonymous in several similar forms, could have come straight from the principles of Stoicism as this side-by-side comparison of the Serenity Prayer and the Stoic Agenda shows: Serenity Prayer Stoic Agenda God grant me the serenity To accept the things I cannot change, courage to change the things I can, and wisdom to know the difference. (Alcoholics Anonymous)God, give us grace to accept with serenity the things that cannot be changed, courage to change the things that should be changed, and the wisdom to distinguish the one from the other. (Reinhold Niebuhr) To avoid unhappiness, frustration, and disappointment, we, therefore, need to do two things: control those things that are within our power (namely our beliefs, judgments, desires, and attitudes) and be indifferent or apathetic to those things which are not in our power (namely, things external to us). (William R. Connolly) It has been suggested that the main difference between the two passages is that the Niebuhrs version includes a bit about knowing the difference between the two. While that may be, the Stoic version states those which are within our powerthe personal things like our own beliefs, our judgments, and our desires. Those are the things we should have the power to change. Read more about The Stoic Philosophers Sources Updated by K. Kris Hirst Annas, J. 2007. Ethics in Stoic Philosophy. Phronesis 52(1):58-87.Ierodiakonou, K. 1993. The Stoic Division of Philosophy. Phronesis 38(1):57-74.Internet Encyclopedia of StoicismKnapp, C. 1926. Professor Gilbert Murray on the Stoic Philosophy (Religion). The Classical Weekly 19(13): 99-100.McAfee Brown, R. (ed) 1986. The Essential Reinhold Niebuhr: Selected Essays and Addresses. New Haven: Yale University Press.Sellars, J. 2007. Stoic Practical Philosophy in the Imperial Period. Bulletin of the Institute of Classical Studies: Supplement 94: 115-140.Remple M. 2014. Stoic Philosophy and AA: The Enduring Wisdom of the Serenity Prayer. In: Miller JA, and Plants N, editors. Sobering Wisdom: Philosophical Explorations of Twelve Step Spirituality: University of Virginia Press. p 205-217.

The Dobzhansky-Muller Model

The Dobzhansky-Muller Model The Dobzhansky-Muller Model is a scientific explanation of why natural selection influences speciation in such a way that when hybridization occurs between species, the resulting offspring is genetically incompatible with other members of its species of origin. This occurs because there are several ways that speciation occurs in the natural world, one of which is that a common ancestor can break off into many lineages due to reproductive isolations of certain populations or parts of populations of that species. In this scenario, the genetic makeup of those lineages changes over time through mutations and natural selection choosing the most favorable adaptations for survival. Once the species have diverged, many times they are no longer compatible and can no longer sexually reproduce with each other. The natural world has both prezygotic and postzygotic isolation mechanisms that keep species from interbreeding and producing hybrids, and the Dobzhansky-Muller Model helps to explain how this occurs through the exchange of unique, new alleles and chromosomal  mutations. A New Explanation for Alleles Theodosius Dobzhansky and Hermann Joseph Muller created a model to explain how new alleles arise and are passed down in the newly formed species. Theoretically, an individual that would have a mutation at the chromosomal level would not be able to reproduce with any other individual. The Dobzhansky-Muller Model attempts to theorize how a brand new lineage can arise if there is only one individual with that mutation; in their model, a new allele arises and becomes fixed at one point. In the other now diverged lineage, a different allele arises at a different point on the gene. The two diverged species are now incompatible with each other because they have two alleles that have never been together in the same population. This changes the proteins that are produced during transcription and translation, which could make the hybrid offspring sexually incompatible; however, each lineage can still hypothetically reproduce with the ancestral population, but if these new mutations in the lineages are advantageous, eventually they will become permanent alleles in each population- when this occurs, the ancestral population has successfully split into two new species. Further Explanation of Hybridization The Dobzhansky-Muller Model is also able to explain how this may happen at a large level with whole chromosomes. It is possible that over time during evolution, two smaller chromosomes may undergo centric fusion and become one large chromosome. If this happens, the new lineage with the larger chromosomes is no longer compatible with the other lineage and hybrids cannot happen. What this essentially means is that if two identical yet isolated populations start with a genotype of AABB, but the first group evolves to aaBB and the second to AAbb, meaning that if they crossbreed to form a hybrid, the combination of a and b or A and B occurs for the first time in the populations history, making this hybridized offspring unviable with its ancestors. The Dobzhansky-Muller Model states that incompatibility, then, is most likely caused by whats known as alternative fixation of two or more populations instead of just one and that the hybridization process yields a co-occurrence of alleles in the same individual that is genetically unique and incompatible with others of the same species.

Why is there a higher prevalence of lupus SLE found among females of Literature review

Why is there a higher prevalence of lupus SLE found among females of Afro Carribbean origins - Literature review Example These hormonal imbalances have the capability of changing the genetic makeup of an individual, resulting to the development of Lupus SLE. However, it is important to explain that genetics alone is not the factor responsible for the development of Lupus SLE amongst women. Another important factor is the environment. The environment plays a role in the development of Lupus SLE because of the ultra violet rays of the sun. Research indicates that women, who are heavily exposed to the ultra violet rays of the sun, are always vulnerable to developing Lupus SLE. In terms of ethnicity, Lupus is more common in people of African descent. One of the major reasons advanced, is because of the high rates of poverty amongst these people, making them to be unable to afford medical treatments in regard to the type of contraceptives to use. In as much as this is information that has been given, this fact is disputed, because hormonal changes are not the only factors responsible for the high rate of Lupus amongst women. This paper is a critical analysis of the ethnic and sex differences in the epidemiology and clinical course of lupus. This paper will analyze the ethnic and sex differences in the clinical and epidemiology course of Lupus. In meeting the objective of this paper, there will be a need of understanding the genetic predisposition of Lupus. This is important in helping us to understand why women and people of African origin are vulnerable to an attack by Lupus. Furthermore, for purposes of understanding this disease, and its epidemiological and clinical cause, there will be a need of identifying its causes. These are well explained in this paper. This paper would also identify and explain the neuropsychiatric consequences of lupus, and an example is the Lupus fog. It would further explain the epidemiology of this disease, and this is in relation to

MACROECONOMIC Essay Example | Topics and Well Written Essays - 1000 words - 1

MACROECONOMIC - Essay Example Therefore, fiscal policy addresses matters relating to the government’s debts and expenditures. It provides an understanding about measures that a government takes to collect taxes and incur expenditures. Answer 2: Fiscal policy aims to affect the economy through changing spending and collection of the government’s revenue. It includes all measures that are involved to stimulate the economical activity (Vitek, 2012). The main objective is to stimulate the national income through aggregate demand (Vitek, 2012). There are three instruments of fiscal policy 1. Government revenue or taxation 2. Government expenditure or Government spending 3. Government debt and management or government deficit The main instrument of fiscal policy is taxation (Perry, et al., 2008). By increasing or decreasing the tax burden on the public, it can influence government revenue (Vitek, 2012). Increasing tax burden will increase the general prices that will result in reduction in cash flow in an economy. Contrary, decreasing tax will reduce the general prices resulting in an increase of cash flow. Y   The above diagram shows the effect of taxation on an economy. It shows the effect of increase (Da1) and decrease (Da2) of tax on an economy. When the tax is increased from Da2 to Da1 it results in lower equilibrium and vice versa. Government expenditure is another instrument of fiscal policy in order to encourage the economy to grow (Perry, et al., 2008). Government expenditure involves spending activities of the government in the country which promotes expansion of businesses and creation of job opportunities (Vitek, 2012). It mainly involves expansion of the governmental sectors like schools, infrastructure projects, industries, and hospitals etc. The above diagram shows two different autonomous investments. When AD1 is the investment, the national income is raised and when the autonomous investment is decreased to AD2 the equilibrium declines. Government deficit refers to spending more than the government’s revenues. Mainly, under-developed countries are deficit financed because the growth of the economy is poor (Perry, et al., 2008). This tool aids underdeveloped countries to improve their economic conditions and boost growth. Resources for deficit budget are met by borrowing referred to as deficit financing (Hansen, 2003). Answer 3: According to Australian national statistic, the Australian government decreased taxes which caused the government’s revenue to fall by five million dollars. Taxation relief was a substantial step by the Australian government to encourage growth in its economy. Decline of about two million tax revenue was due to ineffective tax collection from companies. According to the information, tax burden was increased for people having higher incomes. Taxation was levied on industries and large scale companies whereas small businesses had significant reliefs (Perry, et al., 2008). Moreover, heavy tax was imposed on the duty free cigarette which resulted in a major saving in the transfer payment that was being done for import of tobacco and cigarette. The Australian government seems to be more inclined towards reducing the taxation rate (Perry, et al., 2008). This tool of fiscal policy encouraged people to invest and spend. The decrease in the

Attitude Survey Essay Example for Free

Attitude Survey Essay In certain situations, it is important for psychologists to understand the attitudes of people on different issues. Attitude surveys are how psychologists gather information about attitudes of people. Then, they take this information and turn the results into empirical evidence to back up the theory or question that is impending. A person’s attitude can affect thought and behavior processes such as cognitive thinking, emotional reaction, and physical behaviors (Hogan, 2007). For my survey, I used the Likert method of attitude scale to develop my attitude assessment. I wanted to find what the attitude of smokers and non-smokers have about the smoking ban in restaurants. This paper will examine and discuss the development of my survey, administration process, scoring of the surveys, and the interpretation of the scores. Also, issues that I had while designing the survey will be discussed. Attitude Survey The development of my survey was taken from an issue that I personally was interested in because I am a smoker. When the ban first became a law, I heard many people, including myself; complain about the right to have a smoking section in restaurants for individuals who smoked. The ban has now been in effect for a few years, and I wanted to find out if smokers and non-smokers attitudes had changed on this issue. Survey Design In designing my survey, I used the Likert scale because I felt it would be the best way to gather the information I needed. This survey was designed to see how people view smoking in restaurants. These questions were answered by 6 different people, of which 3 were smokers and 3 were non-smokers. The surveyors were asked to answer each question by stating strongly agree, agree, undecided, disagree, or strongly disagree. The numerical scores for each question range from-2 to +2. Administration, Scoring, and Interpreting Results Administration consisted of me going to neighbor’s doors and asking them eleven questions about the smoking ban. I wanted to make sure that there were not so many questions that it would take too long. The length of time administering the test helped in getting people to take the time to answer these few short questions. The neighbors I chose were already acquainted with me as well, and that helped them to be comfortable and willing to answer my survey questions. For the scoring of the survey the lower the score the lower the satisfaction of the ban, and the higher the score implies the higher level of satisfaction. When I designed the survey I made sure that for each unfavorable answer of strongly disagree corresponded with a negative feeling towards the smoking ban. When interpreting the scores, usually it is better to have a good number of participants to answer the questions because it makes it more reliable to be able to look at the trends of how the questions are answered. Preliminary Design Issues Issues that I had were trying to get enough people to answer my survey questions. I also had an issue of how to figure the scores and put them into a scale. It took me a little time to understand how to correctly design and score. I also wanted to ask the right questions, as well as keep the survey questions short, so that people did not get tired of answering questions before the end however, still cover all the basic questions needed for this survey. I also did not want the questions to be as if I were repeating myself, so this took me a little while to figure out how to properly word my questions so to cover all the information I would need for scoring and interpretation. In conclusion, the survey I chose was to find out the attitudes of people on the smoking ban in restaurants. I used the Likert method of attitude scale for my design because I felt it was the best way to assess my selected issue. I tried to create questions that would cover cognitive factors, emotional responses, and physical behaviors in order to accurately score and interpret the attitudes about the smoking ban issue amongst smokers and non-smokers alike. References Hogan, T.P. (2007). Psychological testing: A practical introduction (2nd ed.). Hoboken, NJ: Wiley.

Stuttering :: Biology Essays Research Papers

"IIIII Can Can Can't Heeeelp It: Stuttering to the Truth" "Stuttering is something the stutterer does, not something he has, because of something he is." --Wendell Johnson Can you imagine not being able to introduce yourself without struggling to pronounce your own name? What would your life be like if you had to battle every time you said "hello"? How would you feel if a mob of security guards surrounded you at Wal-Mart because an employee had mistaken you for being mentally ill ((1))? These are just a few scenarios that 42-year-old Kurt Salierno, a carpenter and minister from Atlanta, encounters everyday. Salierno has a stuttering disorder, which more than 3 million people in the United States and 55 million people around the world struggle with daily. Salierno describes his problem as similar to being trapped in a glass capsule; "I can see out, but there's no way to get out" ((1)). Salierno's feelings and views about what he experiences raises some interesting questions. What is reality like for a person with a stuttering disorder? Is the "I" that is trapped inside the capsule representative of the self that he cannot express due to his disorder? Internally, Salierno is conscious of the words, which he wishes to express. However, Salierno is seldom able to produce these words externally. Does a stutterer create his or her own reality within his or her mind? To the stutterer, does independent experience become reality? With reference to the philosophical thought e xperiment about the tree falling in a forest, does a stutterer make a sound if no one can hear him or her make that sound? Stuttering is a neurological disorder of communication, from which the normal flow of speech is disrupted by repetitions (neu-neu-neuro), prolongations (biiiii-ol-ooogy), or abnormal stoppages (no sound) of sounds and syllables. Rapid eye blinking, tremors of the lips and/or jaw, or other struggle behaviors of the face or upper body may accompany speech disruptions ((3)). Why does stuttering worsen in situations that involve speaking before a group of people or talking on the phone, whereas fluency of speech improves in situations such as whispering, acting, talking to pets, speaking alone, or singing ((1))? In ancient times, physicians believed that the stutterer's tongue was either too long or too short, too wet or too dry. Therefore, practitioners from the mid-1800s tried surgical remedies such as drilling holes into the skull or cutting pieces of the tongue out to eliminate stuttering ((1) ).