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131.
132.
Localization and estimation of the histamine (HA) content in skin wound edges in 86 Sprague-Dawley rats and three cases of human injuries were carried out by a microfluorimetric method specific for this amine which forms a complex with o-phthalaldehyde (OPT). Distribution and density of the mast cells in the same areas were observed at the same time by toluidine blue stain. In all skin specimens with antemortem wounds, both the epidermis and upper dermis exhibit extracellular yellowish fluorescence of the HA-OPT complex. The fluorescent zone spreads in the wound edges with the lapse of time in vital injuries. The HA content increases gradually up to 30 min and then the yellow histamine fluorescence in areas 0-200 microns from the wound edge decreases. None of these features can be observed in normal skin and postmortem-injured skin. Mast cell degranulation can be demonstrated in all antemortem-injured skin. No statistical relationship exists between the number of mast cells and the HA-OPT fluorescence in either ante- or postmortem-injured groups. This study indicates that skin HA microfluorimetry by the OPT method is of practical value for distinguishing ante- from the postmortem wounds and for timing antemortem wounds.  相似文献   
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The brain stems from 52 corpses were microscopically examined. These cases died as a result of closed head injuries, which were clinically diagnosed and/or diagnosed postmortem as primary brain stem lesions. The morphological changes in these cases were compared with morphological changes in the brain stems of corpses who died from cerebral hemorrhage with additional secondary brain stem lesions. The examinations revealed acidophilic necrosis of the vessel walls in brain stem hemorrhages with fibrin impregnation of the vessel walls. Fibrin penetration to the perivascular space was the basic morphological marker that helped to differentiate between these two groups of cases.  相似文献   
135.
Many organisations do not learn. There are many reasons for this, and a lack of donor support tends to be cited as one of the greatest. But this is not the primary reason for a lack of learning. We fail to learn because we are unable to see the importance of doing so. We become so embroiled in our busy-ness and our self-inflicted demands for action, that we have ceased to value learning. And we have lost sight of the fact that without learning our action is doomed to ineffectiveness. If we are about development and cannot measure how we are doing, how can we develop a rigorous and effective practice?  相似文献   
136.
Book review     
Anthony Arnold, Afghanistan: The Soviet Invasion in Perspective. Stanford, California: Hoover Institution Press, 1981. 126 pp. $9.95.

Michael Radu (ed.), Eastern Europe and the Third World. Eastbourne: Holt‐Saunders Ltd., 1981. 358 pp. £21.75.

E. J. Feuchtwanger and Peter Nailor (eds.), The Soviet Union and The Third World. London: Macmillan Press, 1981. 229 pp. £20.00

Wladyslaw Bienkowski, Theory and reality: the development of social systems. London & New York: Allison & Busby, 1981. 303 pp. £5.95.

Allen S. Whiting, Siberian Development and East Asia: Threat or Promise? Stanford: University Press, 1981. xv + 276 pp. $22.50.

Christopher D. Jones, Soviet Influence in Eastern Europe: Political Autonomy and the Warsaw Pact. Praeger, 1981. 322 pp. $29.95 cloth, $10.95 paperback.

Stephen Kaplan, Diplomacy of Power. Washington: Brookings Institution, 1981. 733 pp. $9.50 paper, $19.95 cloth.

Derek Leebaert (ed.), Soviet Military Thinking. London: George Allen and Unwin, 1981. xii + 300 pp. £14.50 hardback, £6.95 paperback.

J. Brine, M. Perry and Andrew Sutton (eds.), Home, School and Leisure in the Soviet Union. London: George Allen & Unwin, 1980. xiv + 279 pp. £15.00.

Manfred Melzer, Anlagevermögen, Produktion und Beschäftigung der Industrie im Gebiet der DDR von 1936 bis 1978, sowie Schätzung des künftigen Ange‐botspotentials. Berlin: Duncker & Humblot, 1980. 250 pp.

Ilmari Susiluoto, The origins and development of systems thinking in the Soviet Union. Helsinki: Suomalainen Tiedeakatemia, 1982. 210 pp.

Michael Waller, Democratic Centralism, an Historical Commentary. Manchester: Manchester University Press, 1981. 155 pp. £14.50.  相似文献   

137.
The new audit guidelines serve as yet another reminder to tax-exempt hospitals that great care must be taken in structuring and documenting business arrangements with physicians and executives so as to withstand scrutiny by the IRS with regard to exempt status. Since increased census and utilization, and enhancement of the hospital's financial position, are no longer acceptable justifications for such activities as physician recruitment incentives (being suggestive of payment for referrals), it is important that hospitals make an effort to ensure that board minutes, recruitment policies, internal memoranda, and other documentation set forth the reasons--other than the benefits to the institution's bottom line--for having entered into such transactions. Hospitals must establish and document a community need for each physician recruited. Hospitals that actively recruit should be armed with studies evaluating recruiting needs in each clinical area, based on objective criteria, taking into consideration managed care contracting needs and the provision of services to the poor and needy. Finally, hospitals should re-examine all joint ventures and other business relationships with physicians to determine whether such arrangements resulted from arm's length negotiation, involve fair market value for goods and services, and conform, insofar as possible, with the Medicare fraud and abuse safe harbor regulations. Under GCM 39862 and the new guidelines, "aggressive" arrangements may not only create exposure under fraud and abuse laws, but could jeopardize the provider's tax-exempt status as well.  相似文献   
138.
As can be learned from the literature, bovine serum may contain antibodies directed against human immunoglobulin allotypes. This gave rise to the question of what the origin of those antibodies is. We tested bacteria (E. coli) by means of the haemagglutination inhibition assay, which is used to type either Gm or Km factors. Anti-G1m(2) and anti-G3m(10)-specific antibodies were inhibited by the bacteria in a clear-cut manner, as was anti-Km(1), albeit less significantly. In contrast, the bacteria tested almost totally failed to inhibit anti-G3m(21) serum. The results lead to the assumption that E. coli may carry both Gm- and Km-like antigenic structures, which are presumably the antigenic material leading to immunization of cattle. Furthermore, new attention is drawn to a mechanism for immunization which is discussed regarding the genesis of either AB0 isoagglutinins in man or other "naturally occurring" antibodies.  相似文献   
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140.
When Google went public with a dual-class capital structure in which shares owned by the founders confer greater voting rights than shares issued to public investors, its cofounders, Larry Page and Sergey Brin, promised to provide investors with high-quality information about the company. Using the words of Warren Buffett, the chairman and CEO of Berkshire Hathaway, another dual-class firm, they promised shareholders, “We won’t ‘smooth’ quarterly or annual results: If earnings figures are lumpy when they reach headquarters, they will be lumpy when they reach you.” Page, Brin, and Buffett definitely understood the importance of quality information to their investors, especially in dual-class structures. But do dual-class companies really provide investors with credible financial information? Contrary to the assumption of agency theory that dual-class firms are less transparent, we find empirically that these companies do provide credible information to their investors. Our results suggest that the quality of financial reports, as measured by their ability to predict change in future earnings, is higher for dual-class companies than for their single-class counterparts. These findings may be explained by the unique relations created in dual-class firms in which the founders provide investors with higher-quality information in exchange for superior voting rights. The article contributes to the heated debate about the transparency of dual-class companies by providing policy makers with important insights on the quality of information provided by these companies. Our findings suggest that there is no need for stricter regulation with regard to disclosure of financial information by dual-class firms.  相似文献   
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