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   8344篇
  免费   498篇
各国政治   406篇
工人农民   285篇
世界政治   638篇
外交国际关系   299篇
法律   5458篇
中国政治   48篇
政治理论   1662篇
综合类   46篇
  2020年   168篇
  2019年   181篇
  2018年   212篇
  2017年   231篇
  2016年   248篇
  2015年   221篇
  2014年   211篇
  2013年   991篇
  2012年   183篇
  2011年   207篇
  2010年   229篇
  2009年   259篇
  2008年   190篇
  2007年   200篇
  2006年   202篇
  2005年   186篇
  2004年   207篇
  2003年   180篇
  2002年   160篇
  2001年   336篇
  2000年   271篇
  1999年   244篇
  1998年   124篇
  1997年   83篇
  1996年   85篇
  1995年   98篇
  1994年   100篇
  1993年   102篇
  1992年   166篇
  1991年   172篇
  1990年   168篇
  1989年   166篇
  1988年   137篇
  1987年   163篇
  1986年   142篇
  1985年   158篇
  1984年   120篇
  1983年   130篇
  1982年   96篇
  1981年   87篇
  1980年   67篇
  1979年   117篇
  1978年   81篇
  1977年   66篇
  1976年   59篇
  1975年   58篇
  1974年   61篇
  1973年   68篇
  1972年   45篇
  1968年   43篇
排序方式: 共有8842条查询结果,搜索用时 0 毫秒
81.
82.
83.
84.
85.
86.
"Control" of health care costs is often portrayed as a struggle between external, "natural" forces pushing costs up and individuals, groups, and societies trying to resist the inevitable. This picture is false. Control includes strenuous efforts by some to raise costs, and by others to resist those increases, and/or to transfer costs to someone else. But all such forces originate in the purposes and interests of individuals and groups. Health care cost control is a struggle among conflicting interests over the priorities of a society, and claims of "inevitability" are simply part of the political rhetoric of that struggle. International experience supports certain conclusions. First, there is no basis for the claim that limits on expenditure growth must threaten the health of (some members of) a society. Second, there is a substantial variety of experience with cost control. Failure in the United States is often presented as evidence of the impossibility of control, but most other countries have succeeded. Finally, control requires the direct confrontation of interests, with substantial build-up of stress. Advocates of expansion are more successful if they can transform compressive forces into efforts to shift the burden onto someone else. Pressures from providers in every country for "privatization" and/or payment by users reflect this recognition of economic interest.  相似文献   
87.
People die daily in the hospital. Mostly, they die because their illnesses were no longer treatable (natural death). Unfortunately, some people die an unnatural death, in particular, as the result of euthanasia. In contrast to the situation in most countries, in the Netherlands euthanasia is accepted by the courts under strict conditions. It can be very difficult for the legal authorities to establish whether a person has died from natural causes or from suicide, euthanasia, or murder. In addition to the pathologist and the lawyer, the toxicologist also has a number of problems in showing whether euthanasia has been carried out. These can consist of the following analytical problems: (a) interactions--the patients involved have frequently been receiving a large number of toxic and nontoxic drugs simultaneously; (b) identification--not all drugs administered are included in general screening procedures; (c) metabolites--a large number of metabolites may have accumulated toward the end of a long therapeutic regimen; and (d) determination--determination of quaternary muscle relaxants and their various metabolites, as well as other drugs, can be problematic. There are also toxicokinetic problems; because of poor kidney and liver function, low serum albumen, general malaise, and interactions between these factors and other drugs, the kinetics of a given drug can differ from normal. This makes it all the more difficult to determine whether the patient died from an accumulation of medication or from a so-called "euthanetic" drug mixture.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   
88.
89.
A risk marker analysis of assaulted wives   总被引:1,自引:0,他引:1  
In the wife assault literature, a number of risk markers have been identified. Using the data of the female respondents to the National Family Violence Survey (n = 699), a multivariate analysis was performed to examine which risk factors best differentiated between women involved in nonviolent relationships, verbally aggressive relationships, relationships exhibiting minor physical aggression and severely violent relationships. High levels of marital conflict and lower socioeconomic status emerged as the primary predictors of an increased likelihood of wife assault. Research implications are discussed.  相似文献   
90.
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