Environmental Microbiology Assignment Example | Topics and Well Written Essays - 250 words - 1

Environmental Microbiology - Assignment Example The reason as to why they are considered together is for human convenience and not as a reflection of their biological, evolutionary or ordered relationships. It is also important to note that algae are also known to be phototropic. Lenntech.com (1) asserts that almost all algae are eukaryotes and the exact nature of their chloroplasts which contains DNA is different in different lines of algae. Cyanobacteria are a classification of organisms traditionally incorporated among the algae though they have a prokaryotic cell structure and they conduct photosynthesis directly within the cytoplasm and not in specialized organs. Expertscolumn.com (1) categorically explains the significance of algae. Economically, Phytoplankton from algae is a source of food to many aquatic living things such as fish and also provides oxygen to their surrounding environment. The desmids help in analysis of water contamination or pollution. Another example is the brown algae. The brown algae contain alginic acid which is a source of lginites. Algae have negative effects as much as they have many uses. A typical scenario is that when a huge increase of algae occurs, a ‘red tide’ occurs. This is characterized by the ocean changing its color to red in certain areas as a result of the pigment coming from the algae. In conclusion, more research should be done to discover more areas through which algae can be utilized as opposed to their negative effects. This can be attributed to the fact that algae will always exist within our society and the more ways of utilizing them in our lives, the better. Expertcolumn.com. â€Å"The Significance of Algae in Economy and Environment as well as Its Harmful Effect†.7 Jan. 2011. Web.27 Oct. 2011

The Portrayal of Transsexualism in Media Essay Example | Topics and Well Written Essays - 750 words

The Portrayal of Transsexualism in Media - Essay Example Transgender people know that most of the outsiders consider them to be somehow impaired, or mentally ill. This opinion dictates the suspicious attitude towards those, who don't belong to the community. The transgender community positions itself as a group of people who have a complex of medical/psychological problems they help each other to solve. They also let the outer world know that they unite not to let the world offend or discriminate those, who belong to their community. Transgender community is centered on the idea that the members have to support each other to ensure their survival. Some researchers identify transsexuals as the representatives of the "third sex" (Shapiro, 1991), thus transgender people often feel that they differ from the rest of the world psychologically, socially, and culturally. Some historians said that transgender people have always existed, but they revealed themselves only in the 20th century. "The modern study of what might be called transgenderism began with Magnus Hirschfeld and the 1910 publication of his book, The Transvestites: An Investigation of the Erotic Desire to Cross Dress", - says Vern L. Bullough, the author of the study Transgenderism and the Concept of Gender (2000). After this study, many scientists contributed to creating the transgender scientific base, including Freud. People have been becoming more and more tolerable towards this minority throughout the 20th century. Transsexualism is an issue that is widely discussed in media nowadays. Transsexuals as a group have announced themselves relatively recently, thus there is still lots of misunderstandings about the nature of the desire to live like the representative of the opposite gender. Lots of Americans have wrong information about the issue of transexualism, that is why prejudicial stereotypes are developed in the U.S society. Unfortunately media is one of the main sources of those stereotypes. It is natural, as it is from the media that most U.S dwellers get the information about transsexuals, but when this issue is put in the wrong light in books, articles, or TV shows, it creates severe problems for transgendered people and their families. The transsexuals often have problems with medical care, and with legal forces. The thing is that the usual doctors and nurses, as well as policeman, have little understanding of what the transsexual are. They have their own stereotypes about transsexuals, and, as a result, the transsexuals are often discriminated by these specialists. (Conway, 2003).They also have problems registering marriage in some state. In Kansas and Texas, for example, transsexual marriages are sometimes declared invalid, and the judges even sometimes refuse to acknowledge that the operated person is a representative of the gender other than he was born in. (Minter, 2004). For example, some articles and books, especially those written by orthodox believers, promote an idea that transsexualism is a mental illness. Moreover, de-jure they are right, as in DSM-4 (Diagnostic and Statistical Manual of Mental Disorders) it is classified as an illness. This is one of the main reasons for which transsexual people suffer discrimination when trying to find a job, as most employers don't wont to hire a person who is "mentally