首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   2205篇
  免费   40篇
各国政治   91篇
工人农民   166篇
世界政治   71篇
外交国际关系   67篇
法律   1481篇
中国共产党   1篇
中国政治   13篇
政治理论   342篇
综合类   13篇
  2023年   7篇
  2022年   6篇
  2021年   14篇
  2020年   20篇
  2019年   27篇
  2018年   113篇
  2017年   52篇
  2016年   120篇
  2015年   53篇
  2014年   56篇
  2013年   115篇
  2012年   157篇
  2011年   117篇
  2010年   39篇
  2009年   58篇
  2008年   34篇
  2007年   49篇
  2006年   39篇
  2005年   434篇
  2004年   131篇
  2003年   37篇
  2002年   26篇
  2001年   27篇
  2000年   13篇
  1999年   23篇
  1998年   9篇
  1997年   7篇
  1996年   8篇
  1992年   25篇
  1991年   26篇
  1990年   32篇
  1989年   40篇
  1988年   29篇
  1987年   30篇
  1986年   31篇
  1985年   22篇
  1984年   14篇
  1983年   14篇
  1979年   13篇
  1978年   10篇
  1975年   15篇
  1974年   25篇
  1973年   15篇
  1972年   16篇
  1971年   19篇
  1970年   13篇
  1969年   8篇
  1968年   11篇
  1967年   9篇
  1965年   6篇
排序方式: 共有2245条查询结果,搜索用时 31 毫秒
11.
Der Wald hat für uns ?konomische, ?kologische, soziale und kulturelle Bedeutung. Leider ist in letzter Zeit die kulturelle Bedeutung im Vergleich zur ?kologischen Bedeutung ins politische Abseits geraten. Nun will man das seit 1975 geltende Bundeswaldgesetz novellieren. Dabei sollte zur besseren Berücksichtigung des Denkmalschutzes bei der Definition des Waldes klargestellt werden, dass Park-, Garten- und Friedhofsanlagen kein Wald im Sinne des Bundeswaldgesetzes sind. Die Bedeutung des Waldbodens als Archiv der Natur- und Kulturgeschichte muss betont werden. Nicht zuletzt wegen der angestrebten Eintragung der Deutschen Buchenw?lder in die Liste des Erbes der Welt muss zum Ausdruck kommen, dass Deutschland die europ?ischen und internationalen Bemühungen zum Erhalt des Kultur- und Naturerbes wie das übereinkommen zum Schutz des Kultur- und Naturerbes der Welt von 1972 unterstützt.  相似文献   
12.
Bei Verbindung von Mietzins- und R?umungsbegehren ist ein Teilurteil auch dann zwingend zu erlassen, wenn zwar die H?he des qualifizierten Mietzinsrückstandes im darauf gestützten R?umungsprozess nicht strittig ist, aber der Mieter behauptet, er sei nach § 1096 ABGB von der Mietzinszahlung ganz oder teilweise befreit; dies gilt auch bei Au?erstreitstellung des Rückstandes der H?he nach. Das Teilurteil geht bei der Kombination von Mietzinsund R?umungsklage dem Rückstandsbeschluss zwingend vor.  相似文献   
13.
Sommaire: : Les méthodes de gestion du secteur privé peuvent-elles s'appliquer au secteur public? Certainement pas intégralement, un obstacle majeur tient au systéme budgétaire des gouvernements. Ce systéme en effet ne permet pas à un administrateur de relier les coûts d'une activitéà une forme quelconque de revenus qui y serait associée et de régulariser les dépenses en conséquence. La formule du Fonds renouvelable fait exception. Tout en demeurant intéagré au cadre financier gouvernemental le Fonds renouvelable finance certaines activités à même les revenus qu'elles générent plutôt que par les sources fiscales usuelles. La formule est séduisante mais ne peut s'appliquer avec profit qu'á certaines conditions. Une grille d'analyse en douze points permet de juger de 1'opportunité d'implanter un Fonds renouvelable. Abstract: Can the management methods of the private sector be applied to the public sector? Certainly not as a whole, because a major obstacle is created by the budgetary system of governments. Indeed, this system prevents an administrator from linking the costs of an activity to some form of revenues which would be related to it and from controlling expenses accordingly. The renewable fund formula is an exception. While remaining part of die governmental budgetary framework, the renewable funds finance some activities from the very revenues they generate rather than through the usual fiscal sources. The formula is attractive but can only be applied sucessfully on certain conditions. A twelve-point analysis grid shows whether it is appropriate to set up a renewable fund. Combien de fois a-t-on entendu des cadres du secteur privé reprocher à leurs collégues du secteur public leur manque de rigueur financeére? Bien à l'abri dans leur sécurité d'emploi, coupés des dures réalités du marché, ceux-ci n'auraient qu'un objectif: dépenser la totalité de leur budget avant la fin de l'exercice ou, mieux encore, dépasser le budget autorisé pour en justifier la croissance l'année suivante.  相似文献   
14.
Quadratic pieces of fleece measuring 16 mm2 were soaked with 10 different blood-samples in the dilution steps of 1:1, 1:10, 1:100, 1:1000, respectively, and were tested in blood group typing and identification tests of forensic serology. The above spezified dilutions correspond with 5 microliters, 0.5 microliter, 0.05 microliter and 0.005 microliter of blood, respectively. The detection limit of the microspectrometric test for blood was the dilution 1:10, of the porphyrine test a dilution above 1:100, whereas the preliminary test for blood (peroxidase) succeeded always up to a dilution of 1:1000 and the species determination by the radial immunodiffusion test in agar gels succeeded in most cases op to a dilution of 1:1000. The detection limit of the anti-human globulin inhibition test was between the dilution steps 1:10 and 1:100 when non-titrated and undiluted anti-human globulin serum was used. Gc- and ABO-grouping were possible up to a dilution of 1:100 and were thus the most sensitive grouping systems. Phenotyping of the enzyme-systems and the Gm/Km-system usually required stains with considerably higher blood concentrations i.e. stains of undiluted blood.  相似文献   
15.
Dr. Wilton Marion Krogman was one of the major founders of physical and forensic anthropology in the United States. His extraordinary career spanned nearly six decades, and he was universally admired and respected for his scholarship, teaching, research, wit, and humanity. While studies based on human skeletal remains have long been used to assist the medicolegal system, the late Dr. Krogman can be credited with uniting these areas into the discipline of forensic anthropology. His "Guide to the Identification of Human Skeletal Material" (1939) in the F.B.I. Law Enforcement Bulletin became the foundation of this discipline; his monumental book The Human Skeleton in Forensic Medicine (updated with the author in 1986) solidified its establishment. The purpose of this paper is to pay tribute to this great man and outline his influence on the development and advancement of forensic anthropology.  相似文献   
16.
A new structure of conclusions including special chapter "Conclusion validity", which ensures their high availability for officials of legal investigation agencies is suggested. The examples of conclusion making on the basis of new form in case of blood, secretion and hair tests performed in two variants (known and unknown criminal) are presented.  相似文献   
17.
So far, the law in the Federal Republic of Germany still allows the injection of fresh-cell preparations from animals as a roborant to increase the vitality of the organism and to strengthen the body's immune defense system. The use of "sicca-cell" preparations was provisionally forbidden in 1987 by the Federal Health Organization (Bundesgesundheitsamt; BGA). Prohibition of fresh-cell injections would have exceeded the authority of this office, although the same serious reservations also applied in the case of this treatment method. Several publications that have appeared since 1955 have reported serious complications of this therapy, some life-threatening and some even lethal. Two further cases are now added: (1) A woman aged 69 had been receiving treatment with cell injections for 9 years. Immediately after an injection of sicca cells she collapsed and was hospitalized; 7 days thereafter she developed an ascending paralysis with increasing inability to swallow or breathe. She died 25 days after the injection as a consequence of central and peripheral respiratory failure. Autopsy revealed the alterations typical for acute Landry-Guillain-Barré-Strohl syndrome. (2) A 76-year-old healthy woman had been receiving treatment with fresh-cell preparations for several years. After an injection of cell suspensions a painful local swelling was observed. The symptoms were interpreted as the consequence of an iatrogenic local hematoma, and repeated punctures were performed to obtain blood. The patient was transferred to a surgical department for further therapy. Two days after the injection she suddenly died with signs of acute cardiovascular failure. Autopsy revealed the signs of a fulminating clostridial infection and also the characteristic signs of Landry-Guillain-Barré syndrome with involvement of the autonomic nervous system. In both cases the development of an inflammatory process in the peripheral nervous system could be interpreted as an immune-mediated allergic disease, related to the repeated injection of heterologous antigenic material containing nervous tissues. This hypothesis would also explain the two other cases already published and would be consistent with the observed perivenous leukoencephalopathy of the central nervous system. The human disease pictures correspond to the well-established animal models of EAEM (experimental allergic encephalomyelitis) and EAN (experimental allergic neuritis). The pathogenesis is discussed; the major role of the central and peripheral nervous system is stressed, with special reference to the risk of acute autonomic failure. The need for specific autopsy techniques for the investigation of the entire nervous system, including spinal cord, roots, spinal ganglia and peripheral nerves with sympathetic chains, is raised.  相似文献   
18.
19.
20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号