Asthma Is A Chronic Inflammatory Disorder Biology Essay

Asthma Is A Chronic Inflammatory Disorder Biology Essay Introduction Asthma is a chronic inflammatory disorder of the bronchial tubes that causes constriction and inflammation of the airways. This results in narrowing of the airways. Airways narrowing in asthma is caused by three major processes that act on bronchi. These are: inflammation, bronchospasm and hyperreactivity. As a result, symptoms of wheezing, coughing, and shortness of breath occur. (Womenfitness, 2004) This essay will aim to discuss the pathophysiology, epidemiology, aetiology and the various causes of asthma. Furthermore, it will compare recent prevalence rates and patterns that have arisen in recent years. It will also concentrate on the effects of asthma on children and exercise, and the long term effects this may have on lung function. Finally, it will present the hygiene hypothesis that has drawn great attention and speculation over recent years. C:UsersuserPicturesasthma2.jpg Figure 1 adopted from asthma.about.com//def_hyperresponsiveness.htm Phathopysiology: Asthma is known to be an inflammatory disease which is characterised by airway inflammation, airflow obstruction and bronchial hyperresponsivness.The mechanism of airway inflammation in asthma maybe acute, sub acute or chronic. Inflammation is the most important factor that causes narrowing of the bronchial tubes. It increases the thickness of the wall of the bronchial tubes and produces excess mucous that forms plugs and clogs the small airways resulting in a smaller passageway for air to flow through. In irregular air flow obstruction and bronchial airway reactivity, oedema and mucus secretion also contribute to further narrowing of the airways. Thus resulting in difficulty breathing. When asthmatic patients are exposed to triggers such as allergens, irritant and infections, the inflamed or constricted airways becomes more sensitive or reactive to those triggers leading to increase narrowing and inflammation of the airways. As a result an asthmatic person has to make a greater effo rt during expiration and inspiration. (Szeftel and Shiffman, 2009). Asthma is characterized by an increased number of mast cells, eosinophils, macrophages, activated T lymphocytes, dendritic cells and neutrophils in the bronchial tissues. During an asthma attack, antigen presenting cells e.g. (macrophages or dendritic cells) in the airways capture and process the inhaled allergen to T-lymphocytes which in turn becomes activated. Once T-lymphocyte becomes activated it produces TH1 cells and TH2 cells both secreting cytokines respectively. TH1 release (INF, lymphotoxin, IL-2) .TH2 release (IL-3, IL-4, IL-9, IL-13, IL-15).TH2cells (CD4 T-lymphocytes) has an important role in allergic response. Allergens drives the cytokine pattern towards TH2cells which in turn promotes B cells to produce immunoglobin E (IgE) and eosinophil recruitment .Then IgE binds to high affinity receptor for IgE, Fc-epsilon-R1 on the surface of mast cells and basophils. This leads to degranulation of the cells and the release of mediators such as histamine, leukotrienes and other enzymes. The production of histamine and leukotrienes result in bronchial hyperresponsivness and air way obstruction causing the symptoms of asthma. (Morris, 2009) Types of asthma: There are two main types of asthma: Extrinsic or allergy asthma: This type is more common and is responsible for 90%of all cases. It develops in children and is associated with features of atopy such as rhinitis or eczema. (Szeftel and Shiffman, 2009) Intrinsic asthma: This type is less common and presents for only 10%of all cases. It is more commonly found in women after the age of 30 and is typically not associated with allergies. (ibid 2009) Epidemiology 5.4million people in UK are currently receiving treatment for asthma. 1.1million children in UK are currently receiving treatment for asthma. There is a person with asthma in one in five household in the UK. (Asthma Uk,2008) The incidence of asthma has increased dramatically over the past 20 years. This is not due to the changes in our genetic makeup, however, due to environmental factors (allergens, infection, life style and diet) that influence on the development of asthma. The prevalence of asthma in Wales is amongst the highest in the world. With 260,000 people currently living with the condition and the rate of hospitalization for adults is 28%, it exceeds all other regions in the UK. (Asthma UK, 2009) Mortality and morbidity Asthma affects 5-10% of the population in United States or an estimated 22 million persons, including 6 million children. Asthma is common in industrial countries such as Canada, England, Australia, Germany and New Zealand. The prevalence rate of severe asthma in those countries ranges from 2-10% and is estimated to affect 300million people world wide. There are about 5000 deaths per year in U.S.and about 500 deaths per year in Canada. (Kelly, 2009) C:UsersuserPicturesasthm prevelance.gif Figure3: shows the high percentage of the population affected with asthma was reported in USA, Canada, UK, Australia and NewZeland (>10%). The lowest prevalence were reported in China and India (

Two Languages and Two Cultures Essay -- immigration, China, Two Kinds,

Two Languages and Two Cultures United States was built on immigrants and some of the immigrants were pushed from their homeland because of some reasons while other reasons such as America dream pulled them to the United States. Most of these immigrants came from China in 1949, when the communist party took over. These immigrants came with their cultures and languages which are significant in everyone's lives because they play a major role in the development of individual’s characteristics. Many observers believe that these cultures and languages lead to conflict between immigrant parents and their American-born children. This is certainly the case. Interestingly enough, while history and culture contribute to the American way of life, they also create disagreements between the immigrant’s culture and American culture. Perhaps this is why Amy Tan's story, â€Å"Two Kinds,† explores the conflicts and confusions of relationships in the Chinese immigrant communities through the effects of Chinese immigrant’s ethnic heritage, child performance during this time of American culture and, communication divide during this period. First, Amy Tan successfully demonstrate how Chinese immigrant’s ethnic heritage contributed to the conflicts and confusions of relationships in the Chinese immigrant communities during that era. Back in China, the Chinese culture during the narrator's mother's era encouraged social stratification and as such no one can move out of their respective social class. Consequently, this way of thinking remained part of the narrator's mother's life when she arrived into the United States. For example in the story, the narrator's mother believed that she could be anything in America. Consequently, she wanted her daug... ...cessive control is not a forced decision. With the adequate public information and dedication, parents can guide their children to become productive citizens. When a parent confront an obstinate child, all it takes is for her not to take it personally. Works Cited Bloom, H. (Ed.). (2001). Amy Tan. Philadelphia: Chelsea House. Huntley, E.D. (1998). Amy Tan: A Critical Companion. Wesport, CT: Greenwood Press. Jottedlines.com. Literature, Critical Analysis of â€Å"Two Kinds.† February 7, 2013. Kazdin, Alan E., Phd. Encyclopedia of Psychology, Volume 8, March 2000. Tan, Amy. â€Å"Two Kinds.† Literature Reading, Reacting, Writing. Ed. Laurie G. Kirszner and Stephen R. Mandell. 8th ed. Boston: Wadsworth, 2013. 687-695. print. Nelson, E . S. (Ed.). (2000). Asian Amerincan Novelists: A Bio-Bibliographical Critical Sourcebook. Westport, CT: Greenwood Press.

A country boy Essay

Not just my family members and I, every Cambodian citizen is the victim of genocide, the act which took the lives of around two million Cambodian citizens. One can say that this is the curse that all Cambodians were to experience while the others might say that it is our sin or karma. The war ended, and my family had to start from the scratch all over again. I did not really know how hard my grandparents had to go through to raise four children, but I experienced growing up living in a one-storey flat which was the shelter of at least ten family members. Unlike the other kids, I rarely saw my parents since my father had to work far away from home, and my mother was still pursuing her Bachelor Degree in Biology. I spent most of my childhood with my grandparents. My grandmother would always tie me behind her back to the hospital where she is still working as a retired doctor while my grandfather is a retired administrative staff of the same hospital, and was a former Lon Nol’s air force. I can still remember how I envied some of my childhood friends whom I called â€Å"Rich Kids†. During my very first day at school, my classmates were showing off their new bags, yet I only had a black plastic bag to store my books and pencils. The other kids were mocking that I did not even have a bag to carry my books to school. I was a quiet kid, and I chose to remain silent. I came back home, and told my grandmother that I wanted a bag. It took her around a week or two to buy me a yellow used bag which cost around 1000 Riels or less. Though it was a used bag, I hugged my bag with joy. I was a kid from the province, and I did not have a chance to go to expensive language schools like some other kids. Due to financial constraint, my parents had to send me to the language schools nearby. I never did well in English class. I was the worst student in my English class. Luckily, my parents were better-off, and they sent me to an international school. It is the place that changed my life. From a language student who never did well in class, I have now become a teacher of English. From a student who copied the whole reading text to submit to the teacher as a writing assignment, and got zero for plagiarizing, I have now won four national writing awards. Again, March and April this year have marked another turning point of the life of this country kid. I was slapping my face to see whether it was a dream or reality. I used to be rejected by the 26th ranking university in Asia, yet I got admitted and have been given a full scholarship to do a Master Degree at the second- best university in Asia which is one among the top universities in the world, and at the same time, I was also among the citizens of five Southeast Asian nations to be offered a full scholarship to pursue a Master Degree at one of the wealthiest universities in Europe. I failed once or twice, and it does not mean that I would always fail. I believe that life is full of possibilities. Life tests us to see how patient and how determined we are. Life does not kill us, but it teaches us. With hope and commitment, I believe that a person can make positive change to his or herself and to the society. â€Å"I like the night. Without the dark, we’d never see the stars.† ― Stephenie Meyer, Twilight

How to Survive an Ied

Paper – Process Analysis Rough Draft Discussion: Writer’s Workshop – Process Analysis Rough Draft– This topic is designed to assist you with your writing and editing skills. When you have completed your rough draft of the Process Analysis paper, post it here. Then, review another student posting and offer advice on how he or she can improve his or her paragraph. For example, you may note that the author of the paragraph has failed to support his or her topic sentence fully. Give that person advice on how he or she can add details that will make the paragraph more compelling.Or, you may wish to practice your grammar and punctuation skills on your fellow students by reviewing a paragraph or two for errors. Paper: Process Analysis – This paper is due week eight This week you will expand from paragraph to essay. Because this is a longer paper, please use this week and next for writing and revising. Please make sure to place your final draft in the appro priate Dropbox prior to the end of class in week eight. Please take the time to review the assigned chapters for detailed guidance on essay construction. Review the following websites for more information on essay construction: lt;! –[if ! supportLists]–>? <! –[endif]–>Sheey, Geoff. â€Å"5 Paragraph Essay Construction. †Ã‚   SlideShare. http://www. slideshare. net/sheehy/5-paragraph-essay-construction <! –[if ! supportLists]–>? <! –[endif]–>â€Å"The Five Paragraph Essay. †Ã‚   Guide to Grammar and Writing. Capital Community College Foundation. http://grammar. ccc. commnet. edu/GRAMMAR/five_par. htm 1. Using the methods you read about in Chapters 16, 17, 26 and 30, write a 500 word essay based on one of the Activities found in Chapter 21 pages 422 – 425.For example, you may choose to write a paper about â€Å"How to Accomplish a Daily Task† or â€Å"How to Write a School Assign ment. †Ã‚   However, any of the topics listed within the pages are fine. You may decide which topic best suits you. 2. Length:   500 words – see page 471 for a Step-by-Step approach to writing a paper in the Process Analysis style. 3. Make sure your paper format includes the following: * Lines – Double spaced * Name Box – at top left corner * Page Numbers * Title 4. Above your paper, I want to see a short outline as describe on page 11 in Chapter 1.4. * Conclusion 5. Make sure your paper has a TITLE – see the MLA section in your grammar handbook for step-by-step instructions. You may seek help on MLA by visiting the Columbia College writing website at http://www. ccis. edu/departments/WritingCenter/writing. html or Purdue’ Online Writing Lab http://owl. english. purdue. edu/owl/resources/557/01/   6. Start your paper with an Introduction that grabs the reader’s attention. Remember that you only get one opportunity to make an impres sion. . Move on to the Thesis Statement. Remember that the Thesis lets the reader know what the overall paper will be about. For this paper, a thesis that states the nature of your idea and the two or three areas you plan to cover is a good idea. See the following websites for more information on thesis formation:* â€Å"Thesis Statements. †Ã‚   The Writing Center. University of North Carolina at Chapel Hill. http://www. unc. edu/depts/wcweb/handouts/thesis. html * Brunswold, Libby. â€Å"Thesis Statement. †Ã‚   Literacy Education Online. The Write Place. St. Cloud State University. 4 October 2003. http://leo. stcloudstate. edu/acadwrite/thesistatement. html 8. Your paper should have at least two Body Paragraphs that start with a Topic Sentence that includes only one idea aka a Controlling Idea. Remember that a topic sentence should focus on a single point you wish to convey to the reader. Remember that you support your topic sentence with detail. Review the assigned c hapters if you are having trouble discerning what a topic sentence is. 9. Support your Topic Sentence aka Controlling Idea with sentences that include personalized examples.These sentences come from the â€Å"supporting detail† sections within your outline. 10. Remember a paragraph moves from the general idea (Topic Sentence) to specific examples that support your overall thought. Review Chapters 16 and 17 if you are still struggling. Remember that you are illustrating your point for the reader. 11. Finally, don’t forget your Conclusion. Simply wrap up your idea by returning to the topic sentence and adding one or two other thoughts or summarizing your entire paper. 12. See a sample Process Analysis

Essay on Impact of GDP and Inflation on Unemployment

Essay on Impact of GDP and Inflation on Unemployment Essay on Impact of GDP and Inflation on Unemployment Essay on Impact of GDP and Inflation on UnemploymentThe study conducted by Umair and Ullah (2013) focuses on the revelation of the possible interdependence between the inflation and unemployment rate and their overall impact on the economic development of Pakistan. The authors suggest the hypothesis of the research which they attempt to prove in the course of their study, which is as follows (Umair Ullah, 2013):H1: Inflation significantly influences the GDP rate of the Pakistani economyH2: Inflation significantly influences the GDP rate of the Pakistani economy on the unemployment of Pakistan economy.Furthermore, the researchers present the research design of their study which shows how the researchers are planning to conduct their study and what methodology they will use in the course of their study. The milestone of the research is the experiential method which involves the data analysis based on the analysis of statistical information available to the researchers from open source s.   The researchers focus on the study of the development of the unemployment and inflation rate in 2000-2010. The decision of the researchers to study the change of the unemployment and inflation rate within a decade allows them to conduct the extensive study and the period studied by the researchers is sufficient for the study of economic performance in the mid-term perspective.At the same time, the ten years period is apparently in sufficient to obtain reliable financial and economic data because ten years period does not show changes and transformations that occur to the economy in a long-run. In fact, the ten years period can show the economic development and respective changes in the inflation and unemployment rate but these changes are typical for one cycle of the economic development characterized by the rise and fall of the economy.In this regard, the period chosen by the researchers is quite accurate because 2000 is the period, when the global economic have already star ted to grow after the profound financial crisis in South-East Asia in 1998. The ten years period marked the rise of the development of the global economy which peaked in the mid-2005 and the inflation and unemployment rate drawn by the researchers in the study prove the high level of the economic development in target countries involved in the study.At the same time, the researchers could study the steep decline of the global economy in 2007-2008, when the economic recession in the US has struck causing the profound global financial crisis. The researchers find out in their study how that crisis has influenced the inflation and unemployment rate or has been triggered by the growing inflation and unemployment.Furthermore, the researchers focus on the study of the inflation and unemployment rates and their changes in Pakistan only. Therefore, the researchers narrows the scope of their research to one country only that makes it difficult to trace how the inflation and unemployment rate could have influenced other countries in the time studied by the researchers.The experiential approach is quite efficient and based on the statistical information available to the researchers. In this regard, the use of the statistical information shows clearly changes that the researchers uncover in the course of the study.At the same time, the researchers do not provide the detailed description and analysis of limitations of their study and its methodology.To test the accuracy and reliability of their conclusions, the authors of the study use the null hypothesis. They try rejecting hypothesis made in the course of the study and eventually conclude that inflation does not have a significant impact but GDP and unemployment as the major macroeconomic factors that influence the economic development of the country that is being under the study, i.e. Pakistan.The researchers focused on the use of the inflation and unemployment rates as independent variables, involving related issues, s uch as the economic situation in global markets as dependent variables. In such a way, the researchers attempted to arrive to the reasonable conclusion on the accuracy of their findings and made their conclusion on the ground of the relevant information.On the other hand, it is still possible to distinguish certain limitations of the study, such as the limited timeline of the study and only one country involved in the study. The limited timeline of the study influences consistently outcomes of the study. At this point, it is worth mentioning that the average business or economic cycle takes seven – eleven years. This is why the study basically shows changes in the unemployment and inflation rate in the course of one economic cycle only. However, the researchers do not exactly show the evolution of the economic cycle from its beginning to the end because the beginning of the new economic cycle after the financial crisis in South East Asia dates back rather to 1999 than to 2000 and the economic cycle ends by 2008-2009, when the new global financial crisis has struck. Nevertheless, the timeline allows obtaining the basic information on the evolution of the unemployment and inflation rate during one economic cycle. However, the researchers underestimate or neglect the fact that there are long waves of the economic development which may take decades and smaller crisis that occur with different frequency of seven – eleven years at average. Therefore, the longer timeline of the study could help to obtain more accurate information. In addition, the authors could try to focus on the development of the correlation between different stages in the economic development of Pakistan within the economic cycle and the inflation and unemployment rate. In such a way, the researchers would provide the information on the correlation between the economic development in general, on the one hand, and the inflation and unemployment rate, on the other.Furthermore, the stu dy involves Pakistan only that is another limitation of the study because the involvement of different countries to obtain the information on the change and interdependence of inflation and unemployment rate could help the researchers to conduct more extensive study, especially taking into consideration the level of the integration of the global economy today.Thus, the study conducted by Umair and Ullah reveal the impact of the unemployment and inflation rate on each other and the overall economic development of Pakistan. The study involves the use of the experiential approach and is based on the statistical analysis, while findings and results of the study are tested with the help of the null hypothesis. However, the study still has some limitations, such as the relatively short timeline and only one country involved in the study.

Conflict Resolution Term Paper Example | Topics and Well Written Essays - 2000 words

Conflict Resolution - Term Paper Example Two or more parties are involved in a conflict. This world runs on dualities—pair of opposites as it is known from the philosophical point of view. In the parlance of modern management techniques, issues can be resolved by negotiations, across the table. The destructive element, the negative thinking that gives rise to conflicts can be dealt with constructively. The day to day life is full of conflicts. Some of the striking conflicts that have the bearing on the social and economic aspect of the life of individuals are trade union issues, protest of farmers against the forced acquisition of their agricultural lands for construction of shopping centers, nations engaged in disputes related to boundaries etc. The enlightened ones rely on an appropriate mechanism to deal with such conflicts constructively with an open mind, without further aggravating the contentious points involved in the conflict. The popular saying goes, ‘Where there is a will, there is a say.’ A d ynamic approach to solve the conflict averts destructive situations The purpose of this paper is to understand the root cause of the conflicts and how conflict resolution is possible with a constructive approach and arrive at creative solutions, without leaving the trace of bitterness. This paper outlines theoretical and practical approaches of conflict resolution. The specific objective of this paper is to give comment on one current example in the field of conflict management, to draw some practical conceptual conclusions relating to this conflict with particular reference to capacity building initiatives, integration of responses to contemporary conflict, the links between civil society building and conflict management, importance of non-official agencies in conflict resolution, post-conflict reconstruction, sharing of concern by parties that are not directly related to the conflict, and democratization of conflict

Home work 4 Assignment Example | Topics and Well Written Essays - 250 words

Home work 4 - Assignment Example considering the enterprise as a whole (2) deciding which jobs to analyze; (3) collecting information; (4) recording them; and, (5) to be analyzed and interpreted according to the needs of the company (p. 29). Today, many software programs are now being designed to carry out this basic yet complicated task of maximizing the human resources of a business organization. Descriptions Now is one of these software programs that help HR managers and supervisors in making certain that the people being hired possess the abilities to perform the tasks and duties that come with the positions they are hired for. Published by the SofoText Incorporated, the software, which offers a 14-day free trial for potential subscribers, provide blank forms and standardized questionnaires which enable those who do the job analysis to determine what a position specifically needs from those who will be assigned to it. The forms describe: the general purpose of the job; the essential duties and responsibilities; the competencies needed, the qualifications, education and experience requirements; the language, computer and mathematical skills; the persons reasoning ability; his or her certificates, licenses, and registrations; what the physical demands of the jobs are and the work environment with which the person shall work (â€Å"Descriptions Now,† n.d.). It also provides features that will enable one to check and update the software library of job descriptions and others which may be acquired through the Internet as well as storage for previously made reports. Other links are also maintained to connect subscribers with sites that supply these