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Editor's Note: The Perspectives featured in this issue of Public Administration Review were adapted from May 2016 commencement addresses: Anna Maria Chavez, the CEO of the Girl Scouts of the USA, spoke on the 12th at Arizona State University's College of Public Service and Community Solutions; Nancy Pelosi, the Democratic Leader in the United States House of Representatives spoke on the 7th at New York University's Wagner School of Public Service; and Tommy Thompson, the former Governor of Wisconsin and Secretary of Health & Human Services, spoke on the 15th at the University of Wisconsin's La Follette School of Public Affairs. These Perspectives reaffirm the highest principles of American public administration: that by and large, government is NOT the problem, and quite often indeed holds the solution; that effective and helpful public policy depends on informed expert opinion and research; and that those who enter public service should do so with a commitment to the notion that America best fulfills its promise when we seek the well‐being of all people, including the least fortunate. We chose these messages from among a wealth of commencement speeches because while they come from leaders with quite different political views, background, and experience, taken together they offer a coherent and inspiring call to public service. Dan Feldman, Perspective and Commentary Editor  相似文献   
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Though nowadays science means progress, for some people it means a moral danger. However, the progress should not be suppressed, and in every case, it should be controlled. These authors uphold that science and morality are closely linked and complementary. That is, technology, society and morality, by themselves, do not have the absolute truth and must be complemented among them without any of the three being suppressed.  相似文献   
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Impurity profiling and classification of seized methamphetamine may play an important role in the interpretation of analytical results, the determination of the synthetic method employed, and the criminal investigations of drug traffic routes. Our study is focused on classifying seized methamphetamine samples according to the groups sorted by the types and quantities of impurities present in illicit methamphetamine samples. The samples (100 mg) were dissolved in 2 mL of potassium phosphate buffer (pH 7.0), extracted with 200 μL of ethyl acetate under basic condition, and then analyzed by gas chromatography-mass spectrometry (GC–MS) with a DB-1 capillary column (30 m × 0.25 mm i.d., 0.25 μm). Five impurities are used as criteria for the classification of seized methamphetamine samples by Emde and Nagai method. A total of fifty-two samples of seized methamphetamine were analyzed by GC–MS and classified by five organic impurities, and then sorted into four groups, which are Nagai type, Emde Type, Undetermined I type, and Undetermined II type.  相似文献   
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