Protein concentration Essay Example | Topics and Well Written Essays - 1000 words

Protein concentration - Essay Example Protein analyses are used for basic research useful in determining specific activities of enzymes, hormones, antibodies and others substances. There are many methods used for the assay such as colorimetric detections, protein copper chelation chemistry and other methods. The Lowry method is one of the most common and useful protein assay methods used with ready to use reagents (Pierce, 2014). The use of absorbance reading for analyzing proteins has been proven to be very useful such that it can be used to predict protein sequence (Anthis and Clore, 2013). Protein absorbs ultraviolet rays. The strong capacity of protein to absorb UV light allows analysis of protein samples through spectrophotometry (Craic Technologies, 2012). There has been many methodologies produced for protein analysis that proves to be accurate and produce good results which include the Bradford Assay and Lowry Assay considered as the most common method (Knight and Chambers, 2003), Biuret Assay, Bichinchoninic Aci d Assay. These methods have their respective advantages and disadvantages when used to read protein concentrations (Sapan, et al. 1999). Other modern techniques are also developed such as DNA Pull down Assay, Microplate Capture and DetectionAssay, Electrophoretic Mobility Shift Assay, and more (Pierce Protein Biology Products, 2014). There will be fives test tubes properly labeled used for the assay. A test sample diluted with 85% Sodium Chloride Solution is used to reach a final concentration of 150-100 ug/ml. The blank test tube will be added with 0.20ml 85% Sodium chloride Solution. The blank test tube will be used as reference test tube. This will be the test tube for comparison purposes with the other test tubes containing the various reagents. The blank test tube will be the first tube to be read in the spectrophotometer that will set back the reading to zero. All the other test tubes would be read in comparison with the blank test tube’s

Racial Profiling Essay Example | Topics and Well Written Essays - 750 words - 1

Racial Profiling - Essay Example It is a racial stereotyping that members of a certain race tend to engage in a particular crime than members of the other groups. In the event of an investigation of a terror suspect in the U.S, most of the people singled out to be suspects are always Arabs and Muslims. The process will always rely on the nationality, the religion as well as the manner of dressing; this is what Michael refers to as racial profiling. In this article, the writer points out that is important to consider ones right even if a crucial investigation is being conducted. Like it or not, the universal fundamental rights of an individual has to earn consideration and also the fact that one is always innocent until proven guilty. Much of this’ discrimination is outlawed’ in the U.S. The criteria used to identify and analyze a terror suspect have regards to being racial discrimination. It is in the conclusion that ones religion, nationality, and ethnicity are judged on the criterion of identifying a terror suspect. In the way, selection of Arabs and Muslims as terror suspects will always connect the boundary that separate suspect description and relying on profiling. A good example is when a member of the public tips an officer that a suspect of certain religion or ethnicity has engaged in criminal activity. The police start by questioning member of the same religion to rule out the fact that they have formed a gang in the neighborhood, this is racial profiling. He says that when one decides on whom to suspect or point out as a terrorist on ones thought is a mere is a generalized observation (Banks &Richard 1213-1214). Widespread observation sometimes brings you to a wrong conclusion. Another pe rfect example is when an intelligence report comes that an individual building will be bombed. The report gives a specific date at a particular time; this limited description will make the police subject all Arab