Thursday, November 28, 2019
Internet Security Many People Today Are Familiar With The Internet And
Internet Security Many people today are familiar with the Internet and its use. A large number of its users however, are not aware of the security problems they face when using the Internet. Most users feel they are anonymous when on-line, yet in actuality they are not. There are some very easy ways to protect the user from future problems. The Internet has brought many advantages to its users but has also created some major problems. Most people believe that they are anonymous when they are using the Internet. Because of this thinking, they are not careful with what they do and where they go when on the net. Security is a major issue with the Internet because the general public now has access to it. When only the government and higher education had access, there was no worry about credit card numbers and other types of important data being taken. There are many advantages the Internet brings to its users, but there are also many problems with the Internet security, especially when d ealing with personal security, business security, and the government involvement to protect the users. The Internet is a new, barely regulated frontier, and there are many reasons to be concerned with security. The same features that make the Internet so appealing such as interactivity, versatile communication, and customizability also make it an ideal way for someone to keep a careful watch on the user without them being aware of it (Lemmons 1). It may not seem like it but it is completely possible to build a personal profile on someone just by tracking them in cyperspace. Every action a person does while logged onto the Internet is recorded somewhere (Boyan, Codel, and Parekh 3). An individuals personal security is the major issue surrounding the Internet. If a person cannot be secure and have privacy on the Internet, the whole system will fail. According to the Center for Democracy and Technology (CDT), any website can find out whose server and the location of the server a person used to get on the Internet, whether his computer is Windows or DOS based, and also the Internet browser that was used. This is the only information that can be taken legally. However, it can safely be assumed that in some cases much more data is actually taken (1). These are just a few of the many ways for people to find out the identity of an individual and what they are doing when on the Internet. One of the most common ways for webmasters to find out information about the user is to use passive recording of transactional information. What this does is record the movements the user had on a website. It can tell where the user came from, how long he stayed, what files he looked at, and where he went when he left. This information is totally legal to obtain, and often the webmaster will use it to see what parts of his site attracts the most attention. By doing this, he can improve his site for the people that return often (Boyan, Codel, and Parekh 2). There is a much more devious way that someone can gain access to information on a users hard-drive. In the past, the user did not need to be concerned about the browser he used; that changed when Netscape Navigator 2.0 was introduced. Netscape 2.0 takes advantage of a programming language called Java. Java uses the browser to activate programs to better enhance the website the user was viewing. It is possible for someone to write a program using Java that transfers data from the users computer back to the website without the user ever being aware of anything being taken. Netscape has issued new releases that fix some but not all of the two dozen holes in the program (Methvin 3). Many people do not realize that they often give information to websites by doing something called direct disclosure. Direct disclosure is just that, the user gives the website information such as their e-mail address, real address, phone number, and any other information that is requested. Often, by giving up information, a user will re ceive special benefits for registering such as
Sunday, November 24, 2019
Understanding the Glow of Noctilucent Clouds
Understanding the Glow of Noctilucent Clouds Each summer, people who live at high latitudes north and south of the equator are treated to a fantastically beautiful phenomenon called noctilucent clouds. These arent clouds in the normal way we understand them. The clouds were more familiar with are generally made of water droplets that have formed around particles of dust. Noctilucent clouds are generally made of ice crystals that formed around tiny dust particles in fairly cold temperatures. Unlike most clouds that float fairly close to the ground, they exist at heights up to 85 kilometers above the surface of our planet, high in the atmosphere that sustains life on Earth. They may look like thin cirrus that we can see throughout the day or night but are generally only visible when the Sun is no more than 16 degrees below the horizon. Clouds of the Night The term noctilucent means night-shining and it describes these clouds perfectly. They cant be seen during the day due to the brightness of the Sun. However, once the Sun sets, it illuminates these high-flying clouds from below. This explains why they can be seen in deep twilight. They typically have a bluish-white color and look very wispy. The History of Noctilucent Cloud Research Noctilucent clouds were first reported in 1885 and are sometimes linked with the eruption of the famous volcano, Krakatoa in 1883. However, its not clear that the eruption caused them - theres no scientific evidence to prove it one way or another. Their appearance may simply be coincidental. The idea that volcanic eruptions cause these clouds was heavily researched and eventually disproved in the 1920s. Since then, atmospheric scientists have studied noctilucent clouds using balloons, sounding rockets, and satellites. They seem to occur pretty frequently and are quite beautiful to observe. How Do Noctilucent Clouds Form? The ice particles that make up these shimmering clouds are quite small, only about 100 nm across. That many times smaller than the width of a human hair. They form when tiny particles of dust- possibly from bits of micro-meteors in the upper atmosphere- are coated with water vapor and frozen high in the atmosphere, in a region called the mesosphere. During local summer, that region of the atmosphere can be quite cold, and the crystals form at about -100à ° C. Noctilucent cloud formation seems to vary as the solar cycle does. In particular, as the Sun emits more ultraviolet radiation, it interacts with water molecules in the upper atmosphere and breaks them apart. That leaves less water to form the clouds during times of increased activity. Solar physicists and atmospheric scientists are tracking solar activity and noctilucent cloud formation to better understand the connection between the two phenomena. In particular, they are interested in learning why changes in these peculiar clouds dont show up until about a year after UV levels change. Interestingly, when NASAs space shuttles were flying, their exhaust plumes (which were nearly all water vapor) froze high in the atmosphere and created very short-lived mini noctilucent clouds. The same thing has happened with other launch vehicles since the shuttle era. However, launches are few and far between. The phenomenon of noctilucent clouds predates launches and aircraft. However, the short-lived noctilucent clouds from launch activities provide more data points about the atmospheric conditions that help them form. Noctilucent Clouds and Climate Change There may be a connection between the frequent formation of noctilucent clouds and climate change. NASA and other space agencies have been studying Earth for many decades and observingà the effects of global warming. However, the evidence is still being gathered, and the link between the clouds and warming remains a relatively controversial suggestion. Scientists are following up on all the evidence to see if there is a definite link. One possible theory is that methane (a greenhouse gas implicated in climate change) migrates to the area of the atmosphere where these clouds form. Greenhouse gases are thought to force temperature changes in the mesosphere, causing it to cool down. That cooling would contribute to the formation of ice crystals that make up the noctilucent clouds. An increase in water vapor (also due to human activities that produce greenhouse gases) would be part of the noctilucent cloud connection to climate change. Much work needs to be done to prove these connecti ons. Regardless of how these clouds form, they remain a favorite of sky watchers, particularly sunset-gazers and amateur observers. Just as some people chase eclipses or remain out late at night to see meteor showers, there are many who live in the high northern and southern latitudes and actively seek out the sight of noctilucent clouds. Theres no doubt of their magnificent beauty, but they are also an indicator of activities in our planets atmosphere.
Thursday, November 21, 2019
Questions & Contentions week 2 Assignment Example | Topics and Well Written Essays - 250 words
Questions & Contentions week 2 - Assignment Example This article illustrates the four distinct interest groups that struggled for control of schools for over seven decade duration, via the education curriculum (Parkerson, 1998). Humanists favored continuous development of the reasoning ability, and also western cultural practices. Developmentalists illustrated that the natural development progress of the child is the very important aspect, of scientifically determining teaching areas (Spring, 2008)). Social efficiency educators strived to ensure schools use scientific management methods education management; and to differentiate education in accordance to the perceived needs and abilities of students (Theobald, 2005). Social meliorists favored using schooling as instrument of social development and progress (Kleibard, 2004). This academic paper analyzes the reality and perceptions of schooling in the society, at the end of nineteenth century. Other changes that started during the duration; like development of railroads, cities and even immigration reached crisis levels (Rury, 2002). The expanding mass media increased the increased popular anxieties. The journalist and other social investigators increasingly illustrated education and schools as joyless (Tyack, 2002). The educators illustrated that the mine works like a muscle, and hence should be exercised continuously through education monotony like drills, verbatim recitations and harsh discipline (Kleiband,
Wednesday, November 20, 2019
International Arbitration Dissertation Example | Topics and Well Written Essays - 2000 words
International Arbitration - Dissertation Example The Second Chapter deals with the research methodology adopted in this work. A doctrinal approach was followed in this research work. The Third chapter provides a Literature Review. In this chapter, many case studies were included to examine the effectiveness of investment arbitration. Moreover, scholarly reports and extant literature on the topic were scrutinised. The Fourth Chapter deals with a discussion of the findings and the fifth chapter deals with conclusions. Ambiguity in the interpretation of the treaty provisions, lack of expertise in ministries in case of developing countries, bias on the part of the arbitrator are some of the reasons identified for the lack of success of investment arbitration. Shortcomings with International Investment Arbitration Chapter 1 ââ¬â Introduction Investment treaty arbitration is significantly different from other types of arbitration. In investment arbitration, the arbitrator is empowered to make decisions that are final. This type of ar bitration brings to the fore a number of issues relating to impartiality and independence. In the other types of arbitration, the final decision is taken by the court.1 As is well known, the courts enjoy independence from private and state power. Such independence is promoted by providing judges with a secure tenure, precluding outside remuneration and the adoption of an objective procedure of assigning cases. These factors are conspicuous by their absence in investment arbitration. As a consequence, it is not uncommon for these arbitral awards to be influenced by inappropriate factors. 2 These safeguards do not find a place in investment treaty arbitration. A class of inappropriate influences is that related to the career and financial interests of arbitrators. These arbitrators do not have secure tenure and engage in remunerative activities that are external to their role as adjudicators. 3 The independence and impartiality of the investment arbitral process is crucially dependent on the existence of openness. In the absence of transparency, it become difficult if not impossible to confirm the integrity and fairness of the decision making process. 4 Arbitrations related to investment treaties emerge from bilateral and multilateral treaties formed between countries to promote foreign investment. In general, such treaties incorporate provisions for settling disputes between a private foreign investor and the host nation by arbitration, under public international law. 5 Contemporary international arbitration is widely believed to have commenced with the Jay Treaty of 1974. This treaty was entered into by the US and Great Britain. Private international arbitration had not developed during that epoch and there was a predominance of international arbitral commissions.6 Subsequently there was an increase in instances of private international commercial arbitration. However, this system of arbitration has not yet developed to any significant extent. Wider acceptance of this method of dispute resolution could render it more transparent. Such arbitration views confidentiality as a significant feature of the dispute resolution. Accordingly, if the parties are in favour of keeping their dispute resolution confidential, then they have to incorporate relevant clauses in their arbitration contract. 7 Another method of ensuring confidentiality is to make a reference in
Sunday, November 17, 2019
The Coward or The Sane Essay Example | Topics and Well Written Essays - 750 words
The Coward or The Sane - Essay Example During his tenure as the spokesman of the party he encounters many people and situations that slowly force him to face the truth about racism and his own lack of individuality. With the continuation of racism tensions in Harlem, he gets caught up in a rebellion that drives him to a manhole, where in the darkness and solitude, he begins to understand himself - his invisibility, his existence, his purpose and his identity. In the same manhole he decides to write his story down and he vows to enter the world again when he is finished. In the prologue of the book the narrator introduces himself as the Invisible Man, presenting himself as both a character and as a theme, because others choose not to see him and he hates this treatment and fights this by retaliation. His invisibility is representative of the fact that the United States, controlled as it is in its economic and social racism, gives him no identity. He recounts past incident of his life where he had a ferocious fight with a w hite man just because that man had rudely knocked him down and finally stopped short of murdering that man realizing that the man had never seen him. The narrator refers such people like the white man who deliberately or un-deliberately ignore him as sleep walkers as they shoes to remain ignorant. The novel explains how the invisible man understands the power of invisibility and realized that he is not bound to follow the rules of visible people. He also mentioned the electricity he steals from the Monopolized Power Company to lighten the abandoned basement where he currently lives. He needs that light to feel alive, and recognize him as light according to him represents the truth of his being and one day people will also see him and he would no longer be invisible. The narrator explains his need for sound as well as the feeling of being under the influence of Marijuana and how he mentally returns from that influence. He resolves not to smoke any more marijuana, since it distorts hi s drive to take appropriate action. It is a story of his early incorruptibility, his ultimate disappointment, and his recent surprise about his own identity. When he figures out what to do, he does not want to be prevented from doing it. He further defines his current period of hibernation as a stage of preparation for the action he will soon be ready to take as he will make himself visible by writing the sound of his voice in notes on the pages of a book. He responds to those who would call him irresponsible by clearly pointing out the fact that there is no one to whom he can be responsible as recognition is necessary for the responsibilities and no one recognizes him. The scene in chapter 25 of the book is full of aggression, disorder, and disorder, but it is also the scene wherein the narrator is suddenly able to understand each and everything fully. Hambro has told him that some will be sacrificed for the good of the whole. The some being sacrificed are the black men, and the wh ole advantaged from this sacrifice are the white men. The Brotherhood has all along wanted to turn the black men against each another and to create dispute amongst them so that they can never unite, so that they can eliminate themselves. The rioting is a vital part of their plan. With sickening clearness, the narrator realizes that he has been totally duped. He thought he was tricking the Brotherhood,
Friday, November 15, 2019
Improving Quality of Life for HIV Sufferers
Improving Quality of Life for HIV Sufferers Introduction It is esteemed that over thirty three million people in the world are living with HIV/AIDS, (WHO, 2009). The majority of people living with HIV are in developing countries, approximately 95% of the total. Sub-Saharan Africa has been hit especially hard. It is esteemed that nearly 70% of all HIV infected people live in this area and 90% of maternal-fetal transmission are occurring there. Compared with the adult transmission rate in developed countries which is lower than 1%, it is 8% in sub-Saharan Africa, (Boyle, 2000). New cases of HIV infection are reported every year and more and more people living with HIV are diagnosed AIDS as they get aged, (Vance, Struzick and Burrage, 2009). So far, there is no effective way to cure this disease. Antiretroviral treatment (ART) is the most effective way to treat people living with HIV. It significantly controls the virus load within patients bodies. It has been a great advance toward extending patients lifespan and improving their quality of l ife. Because of its therapeutic effect, many HIV positive people are able to live with this virus for many years. However, for many people, HIV/AIDS is still a stressful and demanding disease, (Van Dyk, 2007). On top of that, for many HIV infected people in developing countries, the cost of ART is prohibitively expensive. Poverty and a lack of resources are recognized as the most significant barriers which make caring for HIV-infected patients and effective prevention efforts virtually impossible in most developing countries, (Boyle, 2000). As social life is significantly effected in a negative way for this population by social stigma, life is only getting more difficult. People are afraid of being associated with HIV positive people due to two major seasons: A) the fear of being infected themselves; B) the discrimination surrounding the disease. Loneliness, helplessness and self-blame create a high suicidal ideation among HIV infected people. Therefore, they often need counseling a nd psychosocial support, (UNAIDS, 2008). There is a special sub-group of population that needs some extra attention: homosexual people. Research, (Kraaij, Van Der Veek, Garnefski, et al, 2008) shows that HIV infection rate among homosexual people is around thirty times higher than average. In addition, health equality is far from available for everyone. Most homosexual people have witnessed or experienced discrimination from heterosexual people, (Gonsiorek Weinrich, 1991, pp.15-20). This issue is much more severe in eastern countries due to the cultural background. Homosexual people may see HIV infection as blameworthy not only because of a self-protection motive but also because sexual risk reduction has been strongly promoted in the gay community. The relationship between sexual orientation an blame is anticipated, (Collins, 1994). No evidence shows that effective actions have been taken to stop highly risky behaviors which can cause HIV transmission, such as anal sex among men, drug abuse, et al. Statistics show that the estimated prevalence of past-5-year homosexual behavior among males was 6.2, 4.5 and 10.7 in the US, the UK and France, respectively. Similar or even higher prevalence was observed in other areas of the world, (Lau, Kim and Tsui, 2008). Therefore, new HIV infections are still taking place. Besides, prolonged lifespan of HIV infected people is also associated with more new HIV infections. Some qualitative studies may be able to reveal how being HIV infected and homosexual affects ones life. As Aggleton, Hart and Davies, et al., (1999), believed that social stigma is not equal throughout the world, and they argued being gay was a significant factor in migration for some. Homosexual people who cannot live a normal life in their home countries would like to leave for a foreign country where they can continue their lifestyles but have no relatives or close friends. It is potentially dangerous for their health status, especially after they are infected by HIV. The respond of a male interviewee from Brazil in their study is very strongly underpinning this point, you have to get married to leave the house. They (parent) see like if you are leaving the house its because youre not happy so you dont even have any need to talk to us any more, thats how they react. So we have to stay living with our parents so we cant have boyfriends. So that is why everyone leave the country In regard of friendship and social networks, homosexual people tend to be very limited in choosing friends. According to Aggleton, Hart and Davies, et al., (1999), gay people are very likely to have virtually exclusively gay friend and some only have a small mixture of friends of diverse sexuality. It suggests social stigma has negatively affected homosexual peoples socialization. In the UK, health policy surrounding sexual health of homosexual people is closely related to HIV epidemics. Department of Health promoted a ten year National Strategy for Sexual Health and HIV, which aims at reducing the transmission of HIV and STDs, improving health and social care for people living with HIV, and reducing the stigma associated with HIV and STDs, (2001). However, according to James, it is failing to significantly reduce the transmission of STD or HIV and to improve health and life quality for HIV infected people, despite millions of funding has been invested for sexual health service over three years. New research is required to provide better solution, (James, 2009). Therefore, it is important to find out the good practices in improving life quality for homosexual people living with HIV, not only from a medical perspective, but also from a social and humanitarian perspective. Importance of systematic appraisal To my knowledge, previous studies have seldom touched this area. The few existing studies were focusing the effectiveness of one or two interventions. Therefore, they could not present all the good practices in a more systematic way. Looking through Cochrane Library, several systematic reviews have been conducted in relation with quality of life for people living with HIV, (see appendix). However, none of them is focusing on homosexual population. The special health need has not been fully addressed. The aim of this appraisal is to find the most effective ways to help homosexual people with HIV cope this severe disease and the stress associated, and to provide the best evidence to present the good practices to improve quality of life for the targeted population. Research question for this appraisal can be summarized as what are the best ways of improving life quality for homosexual people living with HIV. To be more specific, this question can be interpreted by several small and more details questions: 1) Besides medical treatment, what do homosexual people living with HIV need the most? 2) What are the biggest obscures for these people to have a good life? 3) What are the good practices that have been used in improving HIV positive peoples life quality? 4) What are the strengths and limits of there practices? 5) From what aspects can these practices be further improved? Systematic Review Methodology In order to answer these questions, a systematic review methodology will be applied. A systematic review of literature synthesizes the evidence which is found in previous literatures that used valid and reliable research methods to conduct the experiments, (Evans, 2002). It is one essential skill for health care providers to acquire to base policy decisions on the best available evidence, besides their knowledge of research methodology, (Jubb, 2002). Therefore, systematic review are extremely important for making new policies. Originally, systematic reviews would only include study design that applied randomized control trials, but it has changed through the time. Today all kinds of research design methodologies can be included in the review as long as they have policy relevance. It has been widely acknowledged of the value of including diverse research methodologies based on the fact that randomized control trials cannot answer the entire question needed for evidence. However, for this particular dissertation, the fully structured systematic review would not be used because A) it is an individual work instead of a team work; B) assess to existing literatures is limited due to the fund and time. I am going to use the systematic appraisal instead, which adopts the same methodology as systematic review but doesnt include all the existing literatures related to the topic. Conclusion of the chapter The importance of finding the best ways of improving life quality for HIV infected homosexual people has been addressed in this chapter. In order to reach this goal, a systematic appraisal will be conducted. By selecting and reviewing previous studies in this context, evidences will provided to identify the good practices and suggestions for future practice and policy making will be given. Chapter Two Literature Overview Introduction to the chapter In this chapter, several key literatures will be carefully selected and critically reviewed to find the emerging themes on the topic of HIV transmission and ways of improving quality of life for homosexual people living with HIV. The purpose of this chapter is to provide a clear context in which this appraisal will be done. It will also put this appraisal in a national and international health management context to show its importance against a broader backdrop. Databases Searched NORA (online searching vehicle of Northumbria University) is the key searching engine because it provides the access to core health related databases such as ASSIA, HSWE, Web of Knowledge, and PubMed, et al. Using searching key words, HIV/ADIS, Homosexual/gay, quality of life/life quality, on NORA and other databases respectively, more than sixty articles were selected. Only studies that were published in referee journals were selected. Selected studies were not limited methodologically, so broader understanding on the research topic will be obtained. Similarly, research population of each study was not limited in terms of location, ethnics, or social-economical status. Emerging themes arising from key literatures Key literatures surrounding HIV/AIDS and homosexuality and life quality were carefully selected and reviewed. Throughout the literatures, three emerging themes were found: impacts of HIV infection on peoples life; impacts of sexuality; previous researches on health care strategies. How does HIV infection impact on peoples life? A progressive loss of immune functioning, as a main characteristic of HIV disease, will cause opportunistic infection, (Bormann Aschbacher, et al., 2009). Immune system functioning can be negatively affected by elevated levels of cortisol, a marker of stress-related neuroendocrine activity with substantial immunosuppressive and modulatory capabilities, (Borghetti, Saleri, Mocchegiani, et al., 2009). It is just one major impact of HIV infection on peoples life, medical-wisely. However, more literatures addressed issues surrounding HIV transmission and its severe impacts from social-cultural perspectives. As Hansen, Vaughan, and Cavanaugh, et al. (2009) argued antisocial or borderline personality disorder is a common sign among people living with HIV, which can be regarded as a significant predictor of low health related quality of life, putting social support, grief severity and HIV symptoms into consideration. Both direct and indirect impacts of this predictor can effect on patients life quality. It is also responsible for continued risky sexual behavior, poor medical treatment adherence and severe disease progression, (Berg, Michelson Safren, 2007). This argument is in line with other studies, such like Moskowiz, Hult and Bussolari, (2009) who believed that people who are infected by HIV are much more vulnerable to mental disorder problems, because many aspects of HIV infection are potentially stressful, such as the fear of death, the need to adhere to complex medication regimens, side-effects of the treatment, interactions with a complex medical system, symptoms associated with disease progression, financial difficulties, stigma, and the need to incorporate a new identity as someone with a serious illness are all potential stressors associated with being HIV positive. All these stressors are not unique to HIV, but they are more aggressive in HIV epidemic, (Armistead Forehand, 1995). Hansen, Vaughan, and Cavanaugh, et al., (2009), also accentuated that HIV positive people who are bereaved by HIV related death of beloved ones, are particularly vulnerable to the complicated grief reactions. Mental health of this population is an urgent issue for health care and health management. Health issues surrounding HIV are different from individuals to individuals, taking nationality, ethnics, gender and other social factors into consideration. The major difference of HIV infection between people in developed countries and people in developing countries is with regard to income level, availability of sufficient nutrition and equal access to basic health service, (Mahlungulu, Grobler, Visser, et al., 2007). HIV/AIDS changes people life to a large extend, both physically and psychologically. When facing societal discrimination and other hardships related to HIV/AIDS, a strong and supportive family is one of the first lines of defense, (Bor, Miller Goldman, 1993). A qualitative study from China, (Li Wu, et al, 2006), found that family support had multiple levels of positive impact on HIV infected people. Support from family members helped people living with HIV make important decisions which were beneficial to their health status, such as taking virus load test and taking medication regularly. It also helped improve family relationship, because with family supports, people living with HIV gained hopes for their future and valued their families more and had a positive attitude toward life in general, (Manopaiboon, Shaffer Clark, 1998). With family support, many of the participants expressed positive attitudes and made positive changes in their lives. Family members persuaded several participants to be tested for HIV. One female participant explained how initially she did not want to take the HIV test and how her father convinced her to do so. (Li Wu, et al, 2006). A study in the United States also stressed the relation between HIV awareness and family support, (Persson, Gullberg, Hanson, et al, 1994). According to the study, HIV seropositivity awareness of family member is closely related to the support one can get after being infected. More awareness of the family members would bring more support generally. However, the reality shows, there is a preference of HIV serostatus disclosure target within the family. More mothers were disclosed to than fathers; sisters were more likely to be aware of ones HIV infection than brothers, (Mason, Marks Simoni, 1995). How does being homosexual impact on peoples life? Being homosexual apparently puts any individual into a sexual minority. Life can be much more complicated, considering legal right of marriage, social stigma and discriminations, thread from homophobic people, and many other factors, (Sullivan Schneider, 2004). Multiple sexual partners are one big issue that has been talked a lot. Halkitis, Moeller and Siconolfi, et al., (2004), addressed a special issue against this backdrop. They found the prevalence of crystal meth use among men who have sex with men has been shown to be twenty times higher than the general population. More importantly, it was closely related to an increased sexual risking taking by this population. Crystal meth augments an individuals sexual drive and allows users stay high for an extended period of time, which may increase the odds of multiple sexual encounters with many sexual partnersCondom use was inconsistent and some people never used condom while on crystal, (Mimiaga, Fair Mayer, et al., 2008). Besides the complicated lifestyle of homosexual people, health inequality puts them further to a marginalized area of the society. Cochran, and Mays, (2007) found that people from sexual minorities, such homosexuals, bisexuals, transgender and heterosexual people who had experienced sex with the same sex people, may have unrecognized disparities in general physical health that go beyond the conditions specifically associated with STDs among homosexually active people, compared with exclusively heterosexual individuals. These disparities may include a higher risk for cardiovascular disease, lung cancer as a possible consequence of higher rates of smoking, and a higher risk for diabetes among lesbians and bisexual women, (Roberts, Dibble and Nussey, et al., 2003). It shows though reported being in good physical and mental health, people who identify themselves as homosexual or bisexual oriented are more likely to be exposed to health problems. Sexual orientation minorities are more vulnerable to higher risk of common health issues and limitations, (Ayala Coleman, 2000). Higher levels of psychological distress among people of sexual orientation are also observed, compared with their heterosexual counterpart. Even within sexual orientation minority population, health issues are not equally distributed, (Prado, Pratt Feaster, et al., 2004). Johnson, Wadsworth and Wellings, et al., (1992), also agree with the above studies. According to their research, men who have sex with men are more likely to suffer from health problems as a result of poor access to health care services caused by health inequalities. They also mentioned homophobia is another factor which can cause emotional distress. It could cause incidences of suicide, bipolar psychiatric disorders and depression, (Sell, Wells Wypij, 1995). Psychological issue of being homosexual has also been discussed by Mao and Kidd et al (2009). They stated that major depression was strongly associated with socio-economic deprivation, interpersonal isolation and personal withdrawal as part of life equality for homosexual people. Sexual function contributed as one factor for mental well-being too. The vicious cycle between depression, stress and social exclusion should be highlighted in this context, (Choenarom, Williams Hagerty, 2005). Both HIV positive and HIV negative gay men are found to have high rates of major depression. It could be explained by the impacts of marginalization and discrimination experienced by gay men. Low acceptance of homosexuality by oneself, by significant others and by society as a whole may well predispose gay men to more stressful life events and fewer social and sexual opportunities at an earlier stage of life than men in general, (Mao Kidd, et al., 2009). What did previous research attempt to do? What have they achieved? According to Bormann and Aschbacher, et al., (2009), HIV infection has become a long-term disease that can be managed with medical care and support, rather than an immediate death causing disease, after the introduction and utilization of highly active antiretroviral therapy. However, the prolonged life expectancy doesnt guarantee the quality of life. As Liu and Ostrow, et al (2006), argued that a balance between improvements through diminished HIV-related morbidity and potential declines posed by its side effects was always observed as a net effect of highly active antiretroviral therapy in treating HIV infection and impacting on patients overall quality of life. After receiving the therapy, patients physical health well-being would further decrease with high effect sizes, though mental health would improve after longer treatment with small effect size, (Miners, Sabin Mocroft, et al., 2001). As stress is a big issue for HIV infected people, stress management natural becomes one key research area. In general, different coping and stress management therapies for adults living with HIV infection were found effective in reducing emotional distress including anxiety, depression, and psychological distress. These interventions also reduced fatigue and improved quality of life, (Carey Fielder, 2008). However, as Moskowiz, Hult Bussolari, (2009) concluded that little consistency across studies regarding coping strategies and types of outcomes could be found because the literature on coping with HIV is large and heterogeneous with respect to measures of coping, outcomes, and conclusions. Therefore, it is important to identify all copy strategies in regards of stress management for HIV infection and compare them to find out the best practices and the common features shared by all good practices. Besides stress management by patients themselves, social support was observes as another key element in health care for people living with HIV. Social support and support from families member seem to be more precious in some part of the world because they are harder to get due to the huge stigma and discrimination surrounding HIV epidemic and homosexuality. As Songwathana and Manderson, (2001) found that in Thailand, HIV infected people and their families were both afraid of disclosing their HIV seropositivity to the community because it would bring shame to the whole family. According to Li and Wu, (2006), it is similar in China. HIV/AIDS is always associated with over indulgent sexual intercourses, prostitution, and illegal drug abuse, all of which are considered as low moral status. The strong influence of culture in Asian countries makes it so hard for people living with HIV to seek for help and support. National and international context on health management Taking the UK for an example, Department of Health has promoted the strategy of sexual health and HIV nationwide. It is estimated that 30, 000 people in the UK are living with HIV, of who one third are not aware of their seropositivity. About 400 people die of HIV infection every year. The newly diagnosed HIV cases reached a new peak at the beginning for 21st century. Very noticeably, more HIV infect occurred among heterosexual population. However, sex between men still remains the major transmission route in the country. Combination therapy has improved the lifespan of people living with HIV. Unfortunately, it also provides the possibility of more new HIV infection cases. A survey targeted on gay men showed 58% guys under 20 did not use a condom when having sex with another man. Nearly half of HIV positive men have anal sex with a new partner not long time ago, and 40% of these people had unprotected sex with their partners. Highly active antiretroviral therapy is complex, prohibiti ve and extremely demanding on the patients. These patients may also be suffering from prejudice and social stigma. From a health management perspective, in order to promote HIV prevention and health care for HIV infected people, several actions will be taken by Department of Health in the UK. 1) continue to give a high priority to HIV prevention for gay men; 2) develop a national AIDS trust; 3) improve outreach services for people with undiagnosed HIV, particularly in targeted groups; 4) make sure HIV treatment and care services play a key role in HIV prevention by maintaining the sexual health of people living with HIV, diagnosing and treating STDs, reducing the transmission of HIV and providing information and advice, et al, (Department of Health, 2009). From a wider context, HIV is also a big concern of global epidemics. World Health Organization summarized in its bulletin that to manage global health in a more effective way in terms of HIV transmission, interventions must be targeted and they must be carried out in the right supportive environment. Thailand has set a good model for the rest, Close examination of the celebrated example of the 100% condom use campaign in Thailand shows its success to have depended on its being part of a package: HIV prevention became part of Thailands national sense of destiny, from the Prime Minister down. There was a nationwide debate on sexual mores, together with structural solutions such as regulation of the sex industry, intensive education, skills development and peer intervention with sex workers, and efforts targeting clients. World Health Organization As Piot and Seck, (2001) stated, it is also important to build synergies between prevention and health care. As the Declaration of Commitment adopted by the UN General Assembly recognized that prevention, care, support and treatment for those infected and affected by HIV/AIDS are mutually reinforcing elements of an effective response. Successful prevention and care build a common constituency for action. WHO also identified HIV-related stigma may well be the greatest obstacle to action against the epidemic, for individuals and communities as well as political, business and religious leaders. Therefore, defeating HIV related stigma is a key element in health care for people with HIV, (Piot Seck, 2001). Systematic appraisal arising from literature After reviewing relevant literatures, a need of a systematic appraisal which aims at finding the best ways of improving life quality for homosexual people living with HIV is emerging, because the impact of HIV infection and impact of being homosexual on peoples life are tremendous. Identifying good practices to improve life quality for this particular population is not only beneficial for the target group, but also will provide lots of inspiration for health care of other population. Conclusion of this chapter and link to next chapter In this chapter, key literatures surrounding HIV transmission and health care, life quality of homosexual people and people living with HIV, previous studies on HIV treatment and caring were carefully reviewed to identify the need of conducting this systematic appraisal. Details of how this appraisal will be done are explained in the next chapter. Chapter three: Methodology and Methods Introduction to the chapter In this chapter, the process of this systematic appraisal will be outlined, including explanation of research question in details, search theories and principles, literature searching strategy and vehicles, inclusion and exclusion criteria, and ethics concerns. A brief discussion of quantitative and qualitative research approaches will be conducted in a health management context. The purpose of this chapter is to explain how the public health studies were selected and how they were valid and reliable methodologically to provide evidence to answer the research question of this appraisal. Also explanation of inclusion/exclusion criteria will be given in this chapter. Qualitative and quantitative approaches in health sciences As Eriksson pointed, Public health needs to be evidence-based if it is to be done correctly, which means that learning and knowledge-production for public health must be comprehensive and include knowledge from four different domains: distribution of health, determinants or causal web, consequences, and intervention methods. Eriksson, 2000 To reach this goal, difference research methods have been applied. Generally, they can be put into two categories, namely, qualitative and quantitative. 1) Qualitative research Defined as a cover term for a variety of research traditions originating in philosophy, anthropology, psychology, and sociology that are epistemologically and methodologically similar,(Denzin Lincoln, 2005), qualitative research is based on an idealist philosophy, a subjective view that asserts that the world is known only through human beings perceptions, (Fawcett Alligood, 2003). Furthermore, qualitative research is regarded as a valid and important mode of scientific inquiry that generates distinctive nursing knowledge and complements the knowledge produced by quantitative research, (Fawcett Alligood, 2003). 2) Quantitative research According to Meadows, (2003), quantitative research is considered as the epitome of scientific research, which is focusing on hypothesis testing, reliability and validity. Quantitative research often involves experiment and survey. Typical quantitative experiment is randomized controlled trial, which regarded as the golden standard to provide evidence. Quantitative surveys are usually conducted by structured measures such as questionnaires and structured interviews, (Pool, Hiralal Ostelo, et al., 2010). The main strengths of qualitative research are its ability to examine the issue in detail and depth, the facts that it does not restrict the researchers to specific questions or lists and research framework and direction can be quickly revised as new information emerges, and its adaptability for use a wide range of subjects. However, in qualitative research, data are collected in a few cases or individuals. Research quality is heavily relied on the researchers skills. It takes more time to analyse and interpreter the data. Theres are the key limitations of qualitative research, (Patton, 1990). As the mainstay of traditional biomedical research, quantitative methods has been the gold standard for establishing the efficacy or applicability of a treatment or technique. However, there are frequently great difficulties pursuing this goalà ¢Ã¢â ¬Ã¢â¬ logistic, political, financial and ethical. Studies may be carried out using quantitative methods of less rigour, but the possibility of erroneous conclusions increases the further one moves from the classical prospective study, (Runciman, 2002). In fact, neither of the two research methodologies is perfect by itself. As Runciman, (2002), argued that quantitative and qualitative research are complementary; each provided the same information in the example chosen. A comparison of the two methodologies is seen in appendix. Each of them has its own strengths and limitations. As Eriksson (2000) said, The quantitative approaches need to be supplemented by more qualitative approaches. Evidence generated by such broader approaches gives excellent conditions for learning. To conduct this appraisal, I am searching for both qualitative and quantitative studies. By reviewing quantitative studies, I will be able to identify the existing problems and by reviewing qualitative studies, I will be able to build understanding of how the problems happen and how to solve them. HIV is an extremely complex health issue, as it is far more than a medical condition. Many other issues, such as social stigma, discrimination and psychological well-being, et al are closely related to HIV and people who are infected. Therefore, a mixed methodology is appropriate to be applied. As Rogers, Barton, and Pekarsky, et al., (2005) stated Two-way interaction occurred between themes arising from the qualitative and the quantitative analyses. This augmented and clarified the findings, and provided the integrated understanding needed to inform the larger debate about health care for marginalised groups. Explanation of research question in details HIV has been a global health threat for many years but so far there is no effective medication or therapy which can cure the disease or eliminate this virus. Therefore, it is necessary to find out the best way to improve the life quality for HIV patients as many new infected cases are reported every year.. As Shea, Grimshaw, and wells, et al (2007) said that a well conducted systematic review addresses a carefully formulated question by analyzing all available evidence, it is very important to form an explicit research question for this appraisal. The core research question of this appraisal is: What are the best ways to improve the life quality for homosexual people livin
Tuesday, November 12, 2019
Social Worlds in Blood Brothers, by Willy Russell :: Blood Brothers Willy Russell Social Class Essays
Social Worlds in Blood Brothers Explore how the theme of different social worlds is presented in Blood Brothers by Willy Russell. What comments might Russell be making about his twins You should write about à · Mrs Johnstone and Mrs Lyons à · Edward and Mickey à · The Policeman à · The Narrator This essay is about the play Blood Brothers by Willy Russell. I will be discussing the two main female characters in the play, Mrs Johnstone and Mrs Lyons and how they take part in the important events of the play. I am also going to look at other aspects, like their social statuses and how each receive different treatment altogether from others surrounding them. This will help me evaluate how Willy Russell has presented different social worlds to the audience, and how they are seen. Also I am going to be seeing how Willy Russellââ¬â¢s background could possibly affect his views. Blood Brothers is the tale of two twin brothers who are secretly separated at birth and are forced to live very different lives apart from each other. Upon growing up these two brothers, upon chance, meet each other and strike up a friendship together, while all along being totally ignorant to their fraternity. This can only end in tragedy, as this terrible secret being kept from them cannot stay hidden for ever, so in the end both brothers end up dying together in an inevitable blood bath, upon finding out about the hidden secret. Because the play appears to have been set in the 1970ââ¬â¢s/ 1980ââ¬â¢s, around Liverpool, there is a lot about striking and major redundancies in it. Also, about people moving out of the city to the country (i.e. Skelmersdale), for a better life and good job prospects. This kind of situation seems to emulate what happened to the director Willy Russell during his childhood, as he too moved from the very much industrialised area around Liverpool. Upon moving out into the country he says that ââ¬Å"compared to Huyton it was paradiseâ⬠which seems to show his dislike of industrial areas such as Huyton. At the beginning of the play there is a prologue which is designed to show how fate is meant to play an important role ion the play. The prologue is the ending of the play read out at the beginning. So, in giving the audience the ending at the beginning they begin to feel the storyââ¬â¢s elements locking together as the play wears on. This makes for the audience in having a terrible awareness of what is to happen, so tragically, to the brothers and also gives a very strong sense of fateââ¬â¢s hand in the disaster, which reinforces the importance of
Sunday, November 10, 2019
Julius Caesar: Politically Correct or Politically Corrupt?
Julius Caesar: Politically Correct or Politically Corrupt? Morality: most commonly defined as a set of ideas developed in each individualââ¬â¢s head to decide whether something is wrong or right. On the smallest scale of moral code, being that of each individual, there are great variations. To someone who lives the life of a vegan, it is morally wrong to eat meat, dairy, or be involved with any products what-so-ever derived from an animal. On the other hand, to someone who does eat meat this is all perfectly okay. While this may not seem like a major moral conflict, it actually is because whether you agree or disagree with either of the two greatly affects your everyday life. If you take moral code to a larger scale, saying that of a whole society, there is a greater common trend of certain ideas. Under good morals: helping others, working hard, sharing, loyalty, and honesty. Under bad morals: stealing, lying, jealousy, hurting others, betrayal and revenge. Since moral ideals can differ from one person to the next, then logically they could change from each generation or time period to the next. So, how is the loss of morality within the political sphere of Julius Caesar to be judged? By todayââ¬â¢s morals, or by those of its time period? Since no writer of today could possibly know what exactly was going through Shakespeareââ¬â¢s head at the time he wrote this play, then no one could possibly fully understand what was considered moral within this play or not. Ultimately, one such writer would be forced to use morals that are based within modern times. Within the play, Julius Caesar, the goal of the major political figures was deemed honorable by some but not by others thus causing a greater focus on their corrupt reasoning and the loss of morality within the political sphere of this play. Jealousy: the mental instability brought upon oneself by resentment or fear of anotherââ¬â¢s good fortune leading to unfaithfulness. By this definition, jealousy would be considered morally wrong. Cassiusââ¬â¢s contribution to the loss of morality within the politics of this play is shown through his jealousy of Caesar. Cassius does not see Caesar as other people see him. Many others see Caesar as a great, strong, noble, and god-like leader. Cassius believes Caesar is no greater than him, much weaker, and far less noble and deserving of all the attention and respect that is given to him. Seeing Caesar as a man just like the other men of the senate, Cassius believes that more power and influence should be given to the others. He also believes that if Caesar were to become king, they would be stripped of what little power they do have. Cassiusââ¬â¢ jealousy of Caesarââ¬â¢s greater reputation is shown especially when he says this in reference to Caesar, ââ¬Å"Alas, it cried, ââ¬ËGive me some drink, Titinius,' as a sick girl. Ye gods! It doth amaze me a man of such a feeble temper should so get the start of the majestic world and bear the palm alone. â⬠(Shakespeare, I, ii, 127-130) Cassius also expresses jealousy and resentment towards Caesar when he states, ââ¬Å"Did I the tired Caesar- and this man is now become a god, and Cassius is a wretched creature, and must bend his body if Caesar carelessly but nod on him. (I, ii, 115-118) No political atmosphere can survive when there is such jealousy among its leaders. This morally corrupted mentality of ââ¬Ëcoveting thy neighborââ¬â¢ is what leads to Cassiusââ¬â¢ aid in planning and seeing through the plan of assassinating Julius Caesar. Disloyalty and betrayal: the violation of allegiance or trust. These are another couple characteristics that a re deemed immoral. Through these traits, Brutus aids in the loss of morality within the politics of this play. Unlike Cassius though, Brutus actually loves Caesar. This fact is blatantly obvious when Cassius questions him and Brutus responds in reference to Caesar, ââ¬Å"I would not, Cassius; yet I love him well. â⬠(I, ii, 88) Despite this love for his friend, Brutus still agrees to join the other conspirators and assassinate Caesar. What makes this betrayal so much worse, in addition to the fact that Brutus allows himself to be persuaded by others, is that he knows just how very wrong it is and still goes through with the plan. Right up to the very end there was a great part of Brutus with which this plan did not sit well. His love for Caesar is still evident as he becomes a nervous wreck and very worrisome prior to the assassination. On the night before the ides of March, in response to his wife, Portia, Brutus says,â⬠You are my true and honourable wife, As dear to me as are the ruddy drops that visit my sad heart. â⬠(II, i, 288-291) Itââ¬â¢s obvious that Brutus can tell what he is doing is wrong, yet he still follows through. As justification to the people of Rome, Brutus states, ââ¬Å"If then that friend demand why Brutus rose against Caesar, this is my answer-not that I loved Caesar less, but that I loved Rome more. â⬠(III, ii, 17-19) Even though he gives a ââ¬Ëfor the greater goodââ¬â¢ explanation, this does not make his morals any less corrupt. If the politicians canââ¬â¢t count on each otherââ¬â¢s loyalty, then any and every sense of order within a government is going to fall apart. Revenge: to punish another for a wrong doing in a vindictive spirit. Yet another one of the more commonly deemed immoral personality traits. It was by this state of mind and his abuse of power that Marc Antony contributed the loss of morality within the political aspects of this play. Being a great admirer and friend of Caesar, Antony sought out revenge upon the conspirators after learning of the assassination. By making his eulogy more emotionally charged and getting the opportunity to speak after Brutus, Antony was able to uproot what his pier said and get the revenge he was seeking. Throughout his speech, Marc Antony described Caesarââ¬â¢s wounds in ways such as, ââ¬Å"Look, in this place ran Cassius' dagger through. See what a rent the envious Casca made. Through this the well-beloved Brutus stabbââ¬â¢d. â⬠(III, ii, 176-178) This inspired grief and anger within the Roman people that was then pointed directly at the conspirators. Until the end of the play, Antony is continuously seeking revenge and he does obtain the ultimate revenge when both of the conspirators, Brutus and Cassius, die. This strong desire for revenge is masked to look like justice for the assassination of a great leader, but is it really? In the end, there is no benefit. Yes, Caesarââ¬â¢s death has been avenged but all the great political minds that could have taken his place after his assassination have also been killed and the couple left have been even more corrupted after going through this whole ordeal. Now those who are in charge and not accustomed to such a position of power are morally corrupting the political sphere even more. For example, Marc Antony says, ââ¬Å"He shall not live. Look, with a spot I damn himâ⬠(IV, i, 7). This is pretty much seen as tyranny which is what was trying to be avoided from the beginning. The fixation on the corruption of these great men within the plot shows the tragedy of lost morality in the political sphere of this play, Julius Caesar. Each character beginning the story a better person that how they finish. Starting out as a respectable political leader and ending up an exiled trader who eventually dies. Beginning as one of the more beloved friends, only to become a despised enemy that ultimately kills himself. Built up into a strong government then having it crumble into pieces. The only way any one person or system could sue come to such a low level after being so high is by being morally and inwardly corrupt.
Friday, November 8, 2019
Free Essays on The Newspaper War
The Newspaper War When the Battle Ship U.S.S. Maine suddenly exploded in Havana Cuba, Americans cried out for war, as with Pearl Harbor and the Alamo, solders went of to war with the battle cry ââ¬Å"remember the Maineâ⬠. But unlike other wars this one was not declared by congress, it was the citizens of American who push their country to war with Spain. It was not warmongering on behalf of The American public that caused them to demand war on their European neighbor. Two newsmen and the American Media made the decision for them. At the end of the nineteenth century, the phenomenon of yellow journalism hit American newsstands. Bolstered by a rise in the literacy rate, Thousands of newspapers sprang up around the country. Advertising firms wanted there ads to be seen by as many consumers as possible, and consequently would only want to advertise in a paper with a large circulation. Since the most of revenue newspaper makes comes form selling ads, the 3ability of a paper to survive financially relied heavily on it ability to sell. . Because of their abundance, a fierce competition arose, the major newspapers fought to out sell each other As a result scruples, morels and journalistic integrity where often put aside, is was not uncommon for a report to the editors opinion rather then objective journalism. In order to sell papers editors constantly put out exaggerated and sensational articles. Yellow journalism was so prevalent that even respectable writer of the time where not above it. A good example would be the venerated American author Samuel Clemens, who in his early carrier wrote for a newspaper in the Midwest. Where he reported on the amazing archeological find of a petrified, Stone Age giant. But when it was discovered to be only a concrete statue that he had buried in a field. Samuel Clemens had to flee town and change his name to Mark Twain. Mark Twain was only an armature when it came to sensationalistic headlines. New Yor... Free Essays on The Newspaper War Free Essays on The Newspaper War The Newspaper War When the Battle Ship U.S.S. Maine suddenly exploded in Havana Cuba, Americans cried out for war, as with Pearl Harbor and the Alamo, solders went of to war with the battle cry ââ¬Å"remember the Maineâ⬠. But unlike other wars this one was not declared by congress, it was the citizens of American who push their country to war with Spain. It was not warmongering on behalf of The American public that caused them to demand war on their European neighbor. Two newsmen and the American Media made the decision for them. At the end of the nineteenth century, the phenomenon of yellow journalism hit American newsstands. Bolstered by a rise in the literacy rate, Thousands of newspapers sprang up around the country. Advertising firms wanted there ads to be seen by as many consumers as possible, and consequently would only want to advertise in a paper with a large circulation. Since the most of revenue newspaper makes comes form selling ads, the 3ability of a paper to survive financially relied heavily on it ability to sell. . Because of their abundance, a fierce competition arose, the major newspapers fought to out sell each other As a result scruples, morels and journalistic integrity where often put aside, is was not uncommon for a report to the editors opinion rather then objective journalism. In order to sell papers editors constantly put out exaggerated and sensational articles. Yellow journalism was so prevalent that even respectable writer of the time where not above it. A good example would be the venerated American author Samuel Clemens, who in his early carrier wrote for a newspaper in the Midwest. Where he reported on the amazing archeological find of a petrified, Stone Age giant. But when it was discovered to be only a concrete statue that he had buried in a field. Samuel Clemens had to flee town and change his name to Mark Twain. Mark Twain was only an armature when it came to sensationalistic headlines. New Yor...
Wednesday, November 6, 2019
Wave-Particle Duality Definition
Wave-Particle Duality Definition Wave-particle duality describes the properties of photons and subatomic particles to exhibit properties of both waves and particles. Wave-particle duality is an important part of quantum mechanicsà as it offers a way to explain why concepts of wave and particle, which work in classical mechanics, dont cover the behavior of quantum objects. The dual nature of light gained acceptance after 1905, when Albert Einstein described light in terms of photons, which exhibited properties of particles, and then presented his famous paper on special relativity, in which light acted as a field of waves. Particles That Exhibit Wave-Particle Duality Wave-particle duality has been demonstrated for photons (light), elementary particles, atoms, and molecules. However, the wave properties of larger particles, such as molecules, have extremely short wavelengths and are difficult to detect and measure. Classical mechanics is generally sufficient for describing the behavior of macroscopic entities. Evidence for Wave-Particle Duality Numerous experiments have validated wave-particle duality, but there are a few specific early experiments that ended the debate about whether light consists of either waves or particles: Photoelectric Effect - Light Behaves as Particles The photoelectric effect is the phenomenon where metals emit electrons when exposed to light. The behavior of the photoelectrons could not be explained by classical electromagnetic theory. Heinrich Hertz noted that shining ultraviolet light on electrodes enhanced their ability to make electric sparks (1887). Einstein (1905) explained the photoelectric effect as resulting from light carried in discrete quantized packets. Robert Millikans experiment (1921) confirmed Einsteins description and led to Einstein winning the Nobel Prize in 1921 for his discovery of the law of the photoelectric effect and Millikan winning the Nobel Prize in 1923 for his work on the elementary charge of electricity and on the photoelectric effect. Davisson-Germer Experiment - Light Behaves as Waves The Davisson-Germer experiment confirmed the deBroglie hypothesis and served as a foundation for the formulation of quantum mechanics. The experiment essentially applied the Bragg law of diffraction to particles. The experimental vacuum apparatus measured the electron energies scattered from the surface of a heated wire filament and allowed to strike a nickel metal surface. The electron beam could be rotated to measure the effect of changing the angle on the scattered electrons. The researchers found that the intensity of the scattered beam peaked at certain angles. This indicated wave behavior and could be explained by applying the Bragg law to the nickel crystal lattice spacing. Thomas Youngs Double-Slit Experiment Youngs double slit experiment can be explained using wave-particle duality. Emitted light moves away from its source as an electromagnetic wave. Upon encountering a slit, the wave passes through the slit and divides into two wavefronts, which overlap. At the moment of impact onto the screen, the wave field collapses into a single point and becomes a photon.
Sunday, November 3, 2019
Analyzing Point of View Research Paper Example | Topics and Well Written Essays - 250 words
Analyzing Point of View - Research Paper Example This is a good thing because if the point of view is not consistent the reader can be very confused. They will have a hard time understanding who knows what. This story is traditional and consistent. A little bit of the feelings of Mathilde shine through, but the narrator does not have total knowledge of her and how she feels. This point of view is appropriate to the story. This is not an experimental work where the author is trying to make the reader's head spin. Instead this is a simple story where the author does not want the point of view to intrude or draw attention to itself. He wants the story to almost tell itself. Since this is partly a story of social mores, which are shown rather than told, it is important for the point of view to not be intrusive. There are many techniques an author can use to heighten the quality of his work. Point of view is among the most important. It can completely shape the reader's experience of the story.
Friday, November 1, 2019
History of the third world Essay Example | Topics and Well Written Essays - 750 words
History of the third world - Essay Example And a major part of the third world nation doesn't agree western nations intervening In the ruling matters of the developing countries also the third world countries are inclined to spend its nations income in war and ammunition because of which could not progress in the way of they are to be and for all this the reason are the western countries which support and help the rival nations what they earn. They are already developed nations and instead of giving a helping hand to under developing nations if they raise objections it is nothing but they are not progress loving and peace loving nations. Also when the super powerful nations are struck by natural calamities they received a financial aid from the third world nations. They need something to learn from. How can the progress of third world bear equality to their leave. The contemporary third world that exists along with the developed and underdeveloped countries is an experience to all the countries what the third world has experienced is never experienced by the developed countries. The pain and agony through which the third world has experienced has become the eye opening. The primary reasons for such experiences are the developed countries, which used to exploit underdeveloped countries in every possible manner. ... These countries slowly emerging from the clutches of the slavery and the bonded labor have become internally strong, independent and with rich cultural heritage. This glorious journey is a result of centuries of struggle for independency. The global changes like World War I and World War II were truly influencing the third world countries to reclaim their national sovereignty. The slump in the financial position of the ruling countries because of the two world wars Lead them in slowly started slowly backing off men and military from each country. Apart from that during their regime in two countries the bounded labor and slavery slowly revolutionized and started opposing and revolting against the colonial rule. After decades and decades of struggle and fight for independence was finally achieved. But along with independence there were umpteen numbers of responsibilities. There are not only responsibilities but also new challenges to foresee with. Tackling poverty, diseases, insufficient, funds, armed forces, foreign affairs, internal issues etc. William J brought many heart wrenching facts to light. Most of the facts point out the inept handling by the American nation into its foreign affairs and relief work offered. The capitalistic nature of behavior is clearly seen the way they handle their foreign counter parts. The gruesome incident reported by William J. in the detention centers of American relief operations has put the readers to shock. The manner in which the incidents were reported brought severe criticisms from all walks of the society. The ugly American since when it is published has become a rage and it also made the President Eisenhower to put a committee and order a probe into the dealings of the foreign affairs. The author tried his
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