Thursday, February 27, 2020

Selective Media Lab Report Example | Topics and Well Written Essays - 1000 words

Selective Media - Lab Report Example Selective media has a limited number of microorganisms it can support in growth because the particular component inhibits most other microorganisms by either limiting their growth or production of toxic substance that inhibit growth of non-selected microbes hence appropriate in the selection of target microorganisms during diagnosis. Diagnostic procedures utilising growth characteristics of enteric microorganisms is one of the cheapest and the easiest microbiological protocol that can be adopted in any low-income laboratory or a facility with high throughput diagnostic equipments. During the diagnosis of enteric medical conditions, use of growth media in the diagnosis of microorganisms gives reliable information that guides subsequent diagnostic studies that aims at targeting a particular pathogen. However, the growth of microorganisms is a characteristic of the media used in the assessment of growth. All media do not support the growth of all pathogens. In fact, only nutrient agar can support the growth of most microorganisms. Therefore, utilising a particular media that targets an individual pathogen is a crucial phenomenon in bacterial culture laboratory practices. Media are made selective for a particular microorganism by the incorporation of growth enhancement component that targets a particular pathogen as well as growth limiting component that inhibits the growth of unwanted organisms. Such media is referred to as selective media because it either enhances or inhibits the growth. Using selecting media makes it easy to discriminate most unwanted pathogens that arise from environmental contamination and likely to give false positive diagnosis. This report assessed the growth, morphology characteristics, differential colony features of the four selected microorganisms (E. coli, Salmonella tyhimum, Shigella flecked, and Staphylococcus spp) on five selected selective media (Phenylethyl alcohol – PEA; Hektoen enteric agar- HEK;

Tuesday, February 11, 2020

Economic Interdependence and the Emergence of Globalization Research Paper

Economic Interdependence and the Emergence of Globalization - Research Paper Example Mexico, a developing country in the Western Hemisphere and member of the North American Free Trade Agreement (NAFTA), will be used as a case study to explore the ramifications of realist-inspired neoliberalism and the effects of globalization on a country in the developing world. Furthermore, the effects of the international economic system will be discussed with reference to China, a formerly socialist state in the processing of liberalizing its economy and opening up to the global economic community. Globalization, as it exists today, rests largely on the shoulders of neoliberal economics and the global entrenchment of capitalism as the dominant economic system in the world. Inspired by Realist ideological doctrine, neo-liberalism is the belief in laissez-faire economics and its early proponents were Margaret Thatcher in the United Kingdom and Ronald Reagan in the United States in the 1980s. US President Ronald Regan famously remarked, "government was not the solution but the problem" (Hobsbawm 1994). Neo-liberals put all of their faith in the distributive capabilities of the invisible hand of the free market, and believe that business was inherently good and that government bad. The government was longer interested in the provision of welfare but existed to stimulate the capitalist economic market. The United States under Ronald Reagan was thus described as the "greatest of the neo-liberal regimes" (Hobsbawm 1994).   How did neoliberalism, the dominant political and economic ideology of the West since the Reagan years make inroads around the world and into the formerly Communist countries of Eastern Europe' The Second World, consisting of the global Communist community during the Cold War, was severely undermined by economic and political crises which began in the late 1960s. The result was a political and economic disorder. Economic crises undermined the political foundations of states like China and the USSR - particularly after the deaths of men such as Mao & Brezhnev - and the centrally planned economic systems of these countries remained under stress and increasingly precarious. The Soviet world was also not immune to global economic crises as evidenced by the effects of the OPEC crisis of 1973. These aftershocks paved the way for perestroika and glasnost in the USSR, the implosion of Yugoslavia and popular Chinese dissent expressed in Tiananmen Square and captured live on camera. The political and economic fragilities of the Second World were exposed following 1968 and slowly led to political decay, leading to the eventual implosion of the Soviet Union.Â