全文获取类型
收费全文 | 19558篇 |
免费 | 458篇 |
国内免费 | 2篇 |
专业分类
管理学 | 2727篇 |
民族学 | 74篇 |
人才学 | 1篇 |
人口学 | 1708篇 |
丛书文集 | 93篇 |
教育普及 | 2篇 |
理论方法论 | 1796篇 |
综合类 | 419篇 |
社会学 | 9834篇 |
统计学 | 3364篇 |
出版年
2020年 | 269篇 |
2019年 | 329篇 |
2018年 | 373篇 |
2017年 | 521篇 |
2016年 | 421篇 |
2015年 | 327篇 |
2014年 | 395篇 |
2013年 | 3237篇 |
2012年 | 558篇 |
2011年 | 501篇 |
2010年 | 353篇 |
2009年 | 374篇 |
2008年 | 428篇 |
2007年 | 442篇 |
2006年 | 392篇 |
2005年 | 511篇 |
2004年 | 438篇 |
2003年 | 376篇 |
2002年 | 403篇 |
2001年 | 450篇 |
2000年 | 444篇 |
1999年 | 432篇 |
1998年 | 329篇 |
1997年 | 306篇 |
1996年 | 331篇 |
1995年 | 304篇 |
1994年 | 324篇 |
1993年 | 292篇 |
1992年 | 357篇 |
1991年 | 363篇 |
1990年 | 360篇 |
1989年 | 341篇 |
1988年 | 334篇 |
1987年 | 305篇 |
1986年 | 306篇 |
1985年 | 289篇 |
1984年 | 337篇 |
1983年 | 314篇 |
1982年 | 248篇 |
1981年 | 210篇 |
1980年 | 217篇 |
1979年 | 260篇 |
1978年 | 218篇 |
1977年 | 185篇 |
1976年 | 170篇 |
1975年 | 146篇 |
1974年 | 162篇 |
1973年 | 134篇 |
1972年 | 95篇 |
1971年 | 98篇 |
排序方式: 共有10000条查询结果,搜索用时 629 毫秒
281.
McGivney WT 《Physician executive》1991,17(5):41-43
Technologies with significant implications for expenditures continue to reach the health care system. These technologies range from orphan drugs/biologicals used to treat rare diseases to balloons used to treat the common occurrence of benign prostatic hyperplasia (BPH) in aging men. Because payment for these technologies can represent a serious financial drain on third-party payers, utilization has to be carefully evaluated, monitored, and controlled. 相似文献
282.
283.
McGivney WT 《Physician executive》1991,17(2):30-31
The term "investigational" has become the fulcrum upon which coverage decisions turn. All third-party payers, including the federal government, use varying definitions of the term for the purpose of excluding treatments from coverage for payment. Unfortunately, no consistent definition of the term is available to payers to guide them in their coverage decisions. 相似文献
284.
Tyler RD 《Physician executive》1991,17(3):25-6, 28
In the decade from 1950 to 1960, two quality-related processes--medical audit and total quality management--were being developed, one directly in the health care field and the other in the manufacturing sector. These processes remained isolated from each other until the mid-1980s. Each would have a separate but major effect on the health care industry. 相似文献
285.
Thompson RE 《Physician executive》1991,17(5):3-8
To change from punitive and legalistic QA to positive and productive CQI, both attitudes and methods must change. This is a difficult challenge, but potential rewards for both the organization and its individual members suggest that the effort is worthwhile and deserves high priority. Members of the executive/management team will likely turn to physician executives for guidance on how to proceed. 相似文献
286.
Burton RM 《Physician executive》1991,17(1):43-44
Common sense has to do with problem solving. In the complexities of everyday human life, we are faced time and again with the need to solve problems. In fact, every situation we face, at least at the first exposure, requires some form of problem solving. When we want food, we have to solve a series of problems from acquisition to preparation to serving and eating. When we deal with organizational needs, problem solving is the daily fare. 相似文献
287.
McGivney WT 《Physician executive》1991,17(1):36-38
Coverage decisions by third-party payers are relying more and more heavily on the conclusions of technology assessment programs about the safety and effectiveness of technologies applied in specific clinical situations. Assessment programs vary markedly in the sophistication and rigor of their methodology. Payers differ as to how such assessment information is integrated into their decision-making processes. Finally, coverage decisions about a specific technology can vary widely across the country. 相似文献
288.
The challenge of world health 总被引:1,自引:0,他引:1
2 development specialists have expounded on the demands world health has placed on public health. Striking declines in infant and child mortality occurred with the advent of biomedical and technical interventions in developing countries after World War II. At the same time, these interventions promoted longer lives by curing and/or treating chronic diseases in developed countries. In the 1970s, however, it was apparent that the hospital based, curative approach could not meet health needs and was very costly. In developed countries, biomedical and social sciences showed that chronic diseases did not occur due to modernization but from unhealthy behaviors, diet, and lifestyle. In fact, in 1975, the US Centers for Disease Control announced that unhealthy lifestyles contributed to 50% of all deaths while the medical system was responsible for only 11%. The US and other developed countries then began to promote healthy lifestyles, and in the 1980s, considerable improvements in health occurred, especially among adults. Developing countries which depended on the Western medical model did not experience health gains in the 1970s. Yet developing countries where health systems concentrated on carrying essential services to all people and promoted basic hygiene and sound dietary practices continued to achieve considerable health gains. In 1978, WHO an UNICEF hosted the International Conference on Primary Health Care in Alma Ata, the Soviet Union to hold these developing countries with community based health systems as models of primary health care (PHC). The 1980s witnessed the spread of PHC especially in the form of child survival which focused on oral rehydration therapy and breast feeding. The biomedical and social sciences are needed to move this health policy and program strategy forward. Governments must see to policies that promote healthy people. Political will is needed to make human welfare a high priority. 相似文献
289.
290.
"The aim of this paper is to examine the effects of the work permit today [in the United Kingdom], using official data. It first reviews the operation of the [labor migration] system and describes the main schemes incorporated. Then, it uses data for 1984-88 to describe the general characteristics of labor immigration through the schemes. Finally, by means of a small random sample of applications and issues, it presents details on particular aspects of the immigration. It demonstrates that current labour immigration through the system is selective: most of those entering with long-term permits are highly skilled, well paid, and moving within the internal labor markets of large transnational corporations." (SUMMARY IN FRE AND SPA) 相似文献