Bacteria and Human Health and Viruses and Humna Health Research Paper

Bacteria and Human Health and Viruses and Humna Health - Research Paper Example A single E-Coli bacteria organism can replicate itself to the extent equaling the mass of earth within 24 hours if left unchecked. The bacteria come in various sizes and shapes. The shapes range from coccal (spherical), bacilli (rods), vibrio (curved rods) and spirochetes (spirals) (Richard Robinson Ed. Biology: 4 Volume Set). The role of bacteria in human health has been both positive and negative. A bacteria organism can be infections and beneficial as well. Although bacteria are mostly known for the harm that they bring to human body, there are only some bacteria that really put a bad effect on the human body (Sheela Srivastava. Understanding bacteria). There are two situations through which the bacteria can put an affect on the human body; one is through infection and second as disease. Most of the times these both are considered synonymous, which in reality is not correct. Infection is caused when a microorganism makes the human body is its host for growth and nourishment. In most cases, the infection leads to disease but not always. An infected person may not necessarily be diseased. On the other hand, in a diseased state, the human body suffers (Paul Singleton. Bacteria in biology, biotechnology, and medicine). Primarily it was not believed that bacteria can be a cause of a disease in the human bod y because of already presence of many bacterial organisms in the human body working for the benefit of human being. There are more than 500 species of bacteria in the human body and most of them are useful for many functions that take place in the human body. There are chances that due to some conditions, the growth of bacteria becomes harmful to the body, it is the when a bacteria is said to be transformed into a pathogen. A pathogen is a microorganism that causes the diseases in the human body (Stuart Hogg. Essential microbiology). There quite a few bacteria which are pathogenic in nature and one of the most

Film Review Movie Example | Topics and Well Written Essays - 1250 words

Film - Movie Review Example The theory of social exchange is well demonstrated in the movie the color purple. It is a movie with different characters and demonstrates love, hatred, racism, poverty and sexism. There is a direct link between the theory and the movie as explained below. Social Exchange Theory In-depth Major reason for business set up to any entrepreneur is to make profit. In order to make profits one need to reduce costs and maximize returns. Thus the concept of cost benefit analysis emerges. One need to weigh the cost incurred in relation to benefits derived. In case the cost exceeds the benefits a loss occurs and thus the business is no longer profitable. The same concept applies in social exchange theory. The benefit derived in a relationship is a reward. A reward may be in form of closer ties, promotion at the work place, enhanced relationship and support. In a bid to benefit from these virtues one need to cultivate a culture acceptable with a view of morerewards. An idea that depicts approval is the one that ends up being repeated and vice versa. Aclient who returns for more service is the one has been satisfied with the service provided before. Thus it can be demonstrated whether a particular behavior is bound to be repeated by analyzing degree of returns (approval level) or punishment (disapproval level) as a result of the interaction. In order to demonstrate this following formula is applicable: Profits = interaction rewards –interaction costs. ... The Color Purple This movie took place in the early 1900s. It was acted in South –United States on America. It is a movie that’s demonstrates intense struggle faced by a young African American girl known as Celie Harris. The girl was abused by her father when she was young. By the time she was fourteen she had two children by her ‘dad’ (Leonard Jackson). Leonard forced her daughter Celie to be married by a young wealthy widower known as Albert Johnson. This clip shows how Albert treats Celie like a slave demonstrating how he loathed her. Despite the beating that she received Celie was forced by Albert to make a clean up of his household and look after his disobedient children. A sister to Celie (Nettie) at one time gives them a visit and the movie shows a brief change of environment as the sisters happily conversed.Celie is thrilled as her sister offers to teach her how to write. But the experience is short-lived as Albert tries to make immediate affectiona te moves to Nettie who declined and was thrown out. Celie is promised by Nettie to constantly be receiving letters from her and saying that only death can keep them from it. In another scene a friend to Albert known as Shug Avery comes to live with Albert's family. Shug describes Celie as an ugly woman but despite this their relationship is cordial. At once instance Celie and Shug engage in sexual intimacy. Apart from strength gained from ShugCelie’s life is strengthened by Sofia who is Albert's daughter in law. Sofia is married by Albert's son Harpo. Just like Celie Sofia had faced a hard life with men. But this woman demonstrates her high hearted nature a move taken by surprise by Celie. Sofia's high spirit resulted to her failure in life. At one time she is beaten and