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111.
Israel's new law requiring taxpayers to report aggressive taxplanning arrangements to the Israeli Tax Authority requiresprofessionals to consider the reporting implications and therisks when advising clients. 相似文献
112.
Race or ethnic identity, despite its imprecise categorization, is a useful means of identifying population differences in mechanisms of disease and treatment effects. Therefore, race and other arbitrary demographic and physiological variables have appropriately served as a helpful guide to clinical management and to clinical trial participation. The African-American Heart Failure Trial was carried out in African-Americans with heart failure because prior data had demonstrated a uniquely favorable effect in this subpopulation of the drug combination in BiDil. The remarkable effect of the drug in reducing mortality in this study has illuminated an important new mechanism of therapy for heart failure. Application of these findings need not be confined to the population studied, but the observation highlights the need for more precise ways to identify individual responsiveness to therapy. 相似文献
113.
114.
Jay R. Mandle 《Studies in Comparative International Development (SCID)》1976,11(1):99-115
Conclusion Fogel and Engerman's self-conscious application of economic theory to historical data is extremely useful in clarifying the
market relationships operative in the antebellum Southern economy. What is missing in their study is an appreciation of the
explanatory limits of the theory they have employed. They have paid a high price in attempting to stretch the capabilities
of neoclassical theory into domains beyond its scope. In particular this takes the form of an implicit assumption that if
market efficiency is attained, modernization is within reach.
There is, on the contrary, no necessary correlation between efficiency defined in this market sense, and long-term strength,
growth, or prosperity. Precisely because of the means employed within the plantation economy to achieve viability, there are
serious questions which can be raised with respect to both the longevity of the slave system and the consistency of that system
with development, and hence an increasing standard of living for its population. In analyzing the internal mechanism by which
the slave system worked, Fogel and Engerman interjected issues for which they offered neither testable hypotheses nor employed
the relevant methodological framework. 相似文献
115.
In a recent paper published in the Economic Journal, Professor William D. Nordhaus of Yale University reviewed World Dynamics by Jay W. Forrester. In his criticism, Nordhaus signals three serious problems and several additional questionable assumptions of sufficient importance to undermine the usefulness of Forrester's book. However, a careful examination of his analysis shows that each point made by Nordhaus rests on a misunderstanding of World Dynamics, a misuse of empirical data, or an inability to analyze properly the dynamic behavior of the model by static equilibrium methods.The three serious problems raised by Nordhaus concern the assumptions that connect industrialization to net birth rates in World Dynamics, the representation of technology and production within the world model, and the impact of prices on global resource use. The analysis presented here refutes the Nordhaus arguments and shows that World Dynamics is consistent with his references to real-world data on population, production, and capital accumulation.This paper is a response to William D. Nordhaus, World Dynamics: Measurement Without Data, published in the Economic Journal, Royal Economic Society, December 1973. An earlier, unpublished, version of the Nordhaus paper, bearing the same title, was widely circulated hand-tohand within the United States, Canada, and Europe. A response to the original Nordhaus paper (System Dynamics Group Memorandum D-1736-4) was written in February 1973 and is available from Jay W. Forrester, Alfred P. Sloan School of Management, Massachusetts Institute of Technology, Cambridge, Mass. 02139. The present paper, a revised version of the earlier response, deals with several new or modified arguments contained in the Economic Journal article by Nordhaus. 相似文献
116.
117.
118.
Does ink age inside of a pen cartridge? 总被引:2,自引:0,他引:2
In questioned document examination and ink dating, it has been assumed that the ink inside of a pen cartridge does not begin aging until the ink is dispensed onto paper. Positive ion laser desorption (LD) mass spectra were obtained of ink-on-paper samples containing methyl violet, from new and old pens. Mass spectral studies with methyl violet have established the mechanism for how the dye degrades over time, and have provided structural information concerning the dye's degradation products. This information was used as an indication of the relative age of ink on paper. The LD mass spectrum of the ink from a new pen was indicative of "new" ink, whereas the spectra of the ink found in some older pens may appear to be either new or old. The ink from most of the old pens studied appears not to have aged, supporting the common assumption, whereas other ink samples produced "aged" ink spectra, suggesting otherwise. 相似文献
119.
The authors report two suicides that resulted from the intentional inhalation of automobile exhaust gases in which death occurred without the formation of physiologically significant amounts of carboxyhemoglobin. These circumstances are correlated with measurements of the involved vehicles' exhaust gases, which showed reduced concentrations of carbon monoxide present, reflecting improvements in automobile engine technology. In the absence of carbon monoxide toxicity, the authors attribute death in these cases to asphyxia caused by carbon dioxide intoxication and diminished atmospheric oxygen concentrations. 相似文献
120.
Marcus BJ Kaplan J Collins KA 《The American journal of forensic medicine and pathology》2008,29(3):255-259
Ludwig angina is a rapidly progressing submaxillary, submandibular, and sublingual necrotizing cellulitis of the floor of the mouth that can have lethal consequences due to airway obstruction. Various aerobic and anaerobic microorganisms, and less often fungi, have been implicated to cause Ludwig angina, including oral flora such as streptococci and staphylococci. Early recognition and the use of parenteral antibiotics can prevent mortality and morbidity. We report a case of a 25-year-old white man who was admitted to the hospital by his dentist after being diagnosed with Ludwig angina secondary to periodontal abscesses involving teeth #17 and #32. Although antibiotics were administered, while in the hospital, the decedent had difficulty swallowing and was drooling. He suddenly began to have seizure-like activity thought to be anoxic myoclonus. The decedent was aggressively resuscitated and taken to the operating room for neck exploration and a tracheostomy. Neck exploration revealed severe necrotizing acute inflammation of the deep soft tissues and musculature of the neck. He remained on life support for 7 days until he was declared brain dead. Ludwig angina is a progressive cellulitis that often results in death by asphyxia. Ludwig angina can be complicated by subsequent deep neck infection. The underlying etiologies and common scenarios are examined, and significant autopsy findings and dissecting procedures are discussed. The pathophysiology of Ludwig angina is studied with a review of the current literature. 相似文献