Friday, October 25, 2019
The Way It Really Was! :: essays research papers
The Way It Really Was! à à à à à In the 1950's there were many problems. The Korean war and the civil rights struggle. Back then the music was all rhythm and blues (r &b). It was record mostly by black artists and for black audience but the white teenagers became interested. The music scene in the early 50's à à à à à Before 1954 there were 3 distinct music areas. R & B,country and pop. Music stations usually played one type of music so listeners could easily find what type they wanted. Pop had 4 major recording companies. RCA,Columbia,becca and Mercury. These companies had very good connection and could make a small band very big! Pop music had a subdued beat and smooth singing. R & B had black artists for black audiences. Country Western had the least affect by Rock and Roll. People who recorded at small independent music business and put out a record, they were called Indies. The first Rock and Roll hit à à à à à The term Rock and Roll was usually used for describing physical sex. Allen Freed was credited with inventing Rock and Roll but that wouldn't be to good for him later in life. The father of Rock and Roll à à à à à Alan freed was the first white disc jockey to play Rock and Roll. Alan show in Cleveland was very popular with teenagers. In 1954, Alan's show moved to WINS. His nick name ââ¬Å"moondogâ⬠had to be dropped. He adopted the new title ââ¬Å" the king of rock and rollâ⬠. Newspapers ran articles saying Alan was the main wrongdoer in creating Rock and Roll. A riot broke out at one of Alan Freed's concert. The police turned up the house lights to see what the teenagers were doing and Alan said something and the teens went on a rampage. Alan was to blame. He was charged but when the manager at WINS didn't stand behind him, Alan left and went to WABC. The charges were later dropped. Because of all of the court appearances, Alan filed for bankruptcy in 1959. In 1960, Alan was fired from WABC for not signing a statement that he took favors to play certain records. It was all down hill from there. In 1965 Alan died. His friends said that he had a drinking problem and it got worse when he was fired. Adult response to Rock and Roll à à à à à Most adults did not like Rock and Roll. They thought it was vulgar and rude. Although there was never a link from violence to teens. Many incidences proved that wrong when Nat King Cole was performing and 5 teens jumped on stage and started to beat up him.
Thursday, October 24, 2019
Integrating learning styles Essay
Facilitators use different learning styles such as auditory, kinetic, and visual methods to enhance each studentââ¬â¢s ability to grasp material the simplest way possible. Through research, instructors have adapted many instructing methods to tap into each studentââ¬â¢s learning style without alienated other strategies necessary for various learners. Auditory strategies may include speeches, tapes, or auditoria tutorials so the students can complete their work as they listen to the facilitatorââ¬â¢s instructions thoroughly (Felder and Soloman, p.1). Instructors should emphasize the key words during their speeches to trigger the studentââ¬â¢s critical listening skills. The keywords of the speech should be relative to their new material, but it must advise them on how to carry out the motions as well (Family Education, p. 2). As in online tutorials, the student must be able to hear the instructions and place the instructions in action by kinetic learning methods. Kinetic methods can include on-hands learning opportunities such as drawing, playing, or writing. An example of this would be to write out the format of a mathematical equation. The students learn to articulate the mathematical structure of the equation in order to answer the question more thoroughly (Felder and Soloman, p. 2). Instructors can use hands-on applications to break the barrier between the textbooks and the informationââ¬â¢s overall objective. For instance, an electrical engineer must use their knowledge in the field in order to work diligently through their coursework. It is very important to give the students a chance to have a complete understanding of what their class material is about through kinetic methods. Visual instructions show students how to replicate the sequence for a given answer (Family Education, p. 1). For example, a student must know the basics of a mathematical equations in a more, in-depth way to capitalize on the verbal (auditory) and kinetic (working out) aspects of the subject matter. Reference Cited Felder, R. M. and Soloman, B. A. Learning Styles and Strategies. North Carolina State University. Retrieved October 25, 2006 from http://www. ncsu. edu/felder-public /ILSdir/styles. htm. ââ¬Å"Visual, Auditory, Kinesthetic Learners. â⬠(2006). Family Education. Retrieved October 25, 2006 from http://school. familyeducation. com/intelligence/teaching-methods/38519. html.
Tuesday, October 22, 2019
Overview of Ames Test
The AMES test also known as bacteria reversed mutation assay is used to evaluate the mutagenic properties of test articles. The test was first developed by Bruce Ames in 1974 (Krebsfaenger). The amino acid dependent strain of S. typhimurium and E. coli are used in this experiment where in the absence of the external histidine source, the cells cannot grow to form colonies. Specifically these strains of Salmonella are defective in 1. ) Repair of mutations (uvrB) and 2. A rfa mutation (eliminating a portion of lipolysaccharide (a coating of outer bacterial surface)). The rfa mutation here fulfills two purposes: 1. ) Helps Salmonella in growing in presence of sodium desoxycholate or crystal violet. and 2. ) Increases the cell permeability allowing more mutagen to enter the cell. The lack of uvrB gene in the decreases the rate of repair mechanism of mutations occurring resulting in the increased incidences of occurring mutations. These auxotrophic strain cannot grow on the media without histidine and biotine (due to uvrB).If these organisms are allowed to grow on the media lacking both of these, the strain get converted to prototroph resulting the organisms to grow on the mutagenic chemicals to be tested in the media. If the chemical being tested is mutagenic, the organisms will grow as some substance are capable of causing mutations in the cells at same site or at nearby sites resulting in restoring gene's function and these mutations in the cells can revert back the gene regaining its function (Tejs).These revertant cells are then able to grow on the media which does not contain histdine as it can now synthesize histidine on its own. This mutation causes the cells to divide continuously. If there is no further mutation occurring in the cell, the cells will die out like normal cell. But if any further mutation occurs which allows the cells to grow for many generations, then the cancerous cells will be formed. The principle of Ames test is specifically based on the hypothesis that any substance that is mutagenic for the bacteria used in this test may also turn out to be carcinogenic (compound causing cancer).The most important limiting points of the Ames test includes first an assumption that though Ames test is being tested on prokaryotic microorganisms, it will detect the mutagens or cancer causing agents in human beings. (Though this test uses rat liver enzymes, Ames test is not able to serve the perfect model for human beings. ) Secondly, mutagens found by this test might not be carcinogenic i. e. further test may be required. also all carcinogens are not mutagens ( i. e. Ames test is unable to find such agents eg: asbestos).Third, some nitrate containing compounds lie nitroglycerine can cause false positive production by producing nitric oxide. ? Works Cited 1. Krebsfaenger, Niels. ââ¬Å"AMES TEST: Bacterial Reversed Mutation Assay. â⬠Genpharmtox, Assay Sheet AMES TEST. Gen Pharm Tox, n. d. Web. 21 Nov 2012. . 2. Tejs, Sebastian. ââ¬Å"The Ames Test: A methodological Short Review. â⬠Environmental Biotechnology. Environmental Biotechnology, University of Warmia and Mazury, n. d. Web. 27 Nov 2012. . 3.
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