(DPPH) for estimating antioxidant activity Songklanakarin J. Sci. Technol.‚ 2004‚ 26(2) : 211-219 The use of the stable free radical diphenylpicrylhydrazyl (DPPH) to estimate the activity of antioxidants is reviewed. Current applications of the method are examined‚ particularly the use of the parameter EC50 (substrate concentration to produce 50% reduction of the DPPH). Some recommendations are made as to the most suitable ways of carrying out this assay and evaluating the data produced. Key
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There were many kings of Israel‚ but the first three kings of Israel were: Saul‚ David and Solomon. Now‚ the three of these men had several similarities and many‚ many differences. Furthermore‚ when it was each of their times to be king‚ it made that time frame very unique to that kings preference. In the end‚ each of them‚ at one time or another‚ ended up turning their back to God; however‚ all three outcomes were very different. During the time of Samuel‚ why did the people of Israel desire
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effort to minimize anxiety. 2. What is the justification for using a qualitative method? A quantitative study cannot be used because information cannot be obtained objectively and results being tested cannot be measured. The qualitative method is appropriate because the study involves gathering and analyzing information regarding the children’s experiences. 3. What are the philosophical underpinnings of the research method? Qualitative researchers believe that an individual’s experiences
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KELLEY’S A DIFFERENT DRUMMER Notes including • Life and Background of the Author • List of Characters • Critical Commentaries • Character Analyses • Critical Essays • Essay Topics and Review Questions • Selected Bibliography LIFE AND BACKGROUND OF THE AUTHOR Like many young men‚ William Melvin Kelley’s ideas about who he is and what America is all about have undergone major changes. For many years‚ he was‚ in his own words‚ an "assimilated student." He was educated at Fieldston
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Chemistry 11 Santa Monica College Determination of Molecular Mass via the Dumas Method Objectives: • To determine the molecular mass of an unknown volatile liquid using the Dumas method and the ideal gas law. Background: In the early 19th century‚ Jean-Baptiste Dumas‚ a distinguished French chemist‚ created a relatively simple method for determining the molecular mass of a volatile substance. In this experiment we will use a modified version of his technique to determine the molecular
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Psychologists do more than just wonder about human behavior: they conduct research to understand exactly why people think‚ feel‚ and behave the way they do. Like other scientists‚ psychologists use the scientific method‚ a standardized way to conduct research. A scientific approach is used in order to avoid bias or distortion of information. After collecting data‚ psychologists organize and analyze their observations‚ make inferences about the reliability and significance of their data‚ and develop
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applied research. - True 3. Research done chiefly to make a contribution to existing knowledge is called applied research. - False 4. Applied research has little scientific relevance. - True 5. Being knowledgeable about research and research methods helps professional managers to discriminate good from bad research. - True 6. The manager should make sure while hiring researchers or consultants that the roles and expectations of both parties are made explicit. - True 7. An advantage of engaging
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The three doctors have fought influences like drugs‚ gangs‚ and people who only want to bring them down‚ so they can be successful. The three doctors are Dr. Sampson Davis‚ Dr. Rameck Hunt‚ and Dr. George Jenkins. They grew up in Newark‚ New Jersey and came up from a harmful neighborhood to go to one of the best schools in Newark and then being the first person in their families to go to college. The three doctors have overcome many obstacles and unpleasant events‚ but also good events that shaped
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fear consumers will not buy them. Accommodative stance to social responsibility involves meeting and sometimes exceeding its legal and ethical requirements. Walmart‚ Disney‚ and Google are great examples of companies going above and beyond. The three companies have been known to give great benefits to their employees‚ and even match contributions made by their employees to selected charitable causes. Car companies are great examples of proactive stances to social responsibility. Companies such
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The Socratic Method of teaching is one that has survived throughout many decades. The Socratic Method was started by Socrates‚ a Greek Philosopher. According to the Stanford Encyclopedia of Philosophy‚ the philosopher Socrates remains‚ as he was in his lifetime (469–399 B.C.)‚ an enigma‚ an inscrutable individual who‚ despite having written nothing‚ is considered one of the handfuls of philosophers who forever changed how philosophy itself was to be conceived. Socrates wrote nothing about his work
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