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   36105篇
  免费   705篇
  国内免费   2篇
管理学   4923篇
民族学   168篇
人才学   1篇
人口学   3297篇
丛书文集   146篇
教育普及   3篇
理论方法论   3260篇
现状及发展   1篇
综合类   418篇
社会学   17837篇
统计学   6758篇
  2023年   194篇
  2021年   234篇
  2020年   575篇
  2019年   815篇
  2018年   982篇
  2017年   1299篇
  2016年   1001篇
  2015年   717篇
  2014年   956篇
  2013年   6058篇
  2012年   1242篇
  2011年   1200篇
  2010年   877篇
  2009年   726篇
  2008年   911篇
  2007年   874篇
  2006年   904篇
  2005年   789篇
  2004年   773篇
  2003年   680篇
  2002年   739篇
  2001年   889篇
  2000年   843篇
  1999年   775篇
  1998年   602篇
  1997年   534篇
  1996年   548篇
  1995年   537篇
  1994年   486篇
  1993年   506篇
  1992年   586篇
  1991年   566篇
  1990年   531篇
  1989年   501篇
  1988年   490篇
  1987年   423篇
  1986年   432篇
  1985年   481篇
  1984年   447篇
  1983年   409篇
  1982年   349篇
  1981年   291篇
  1980年   298篇
  1979年   339篇
  1978年   284篇
  1977年   260篇
  1976年   208篇
  1975年   225篇
  1974年   196篇
  1973年   168篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
942.
943.
Many queer theorists, like many queer activists and perhaps many LGBT people in general, regard religion as so inimical to their purposes and lives that it is not even worthy of critique; references to religion in queer theory, queer studies, and even LGBT studies are usually sparse, brief, and generally derogatory. Likewise, within most of the field of religious studies, queerness is rarely an issue of concern or even consciousness except in the context of organizational tensions over the proper roles of "homosexuals." While there is a growing body of work that brings these two fields together, the study of religion seems to be adapting only haltingly and partially to contemporary developments inLGBTstudies and queer theory. This essay assesses the current state of the "proto-fields" of LGBT studies and queer studies in religion, offers suggestions for new directions in the future, and considers the potential benefits of the interaction of these fields.  相似文献   
944.
In the long history of the West's encounter with Hawaiian culture, which began in the late 1700s with Captain Cook, translators and translations have often been the tools of intentional falsehood, thus demonstrating the truth of the Italian proverb, Traduttore, traditore ("the translator is a traitor")--particularly with regard to same-sex texts. The standards of truth have often been subverted in translation by the demands of foreign religion, hegemony, business, and academe. This subversion continues to this day in the form of the "missionary mentality" in politics and law. The way out of this situation is a brutally honest cleaning-off of the besmirched Hawaiian texts.  相似文献   
945.
946.
Comments of women engaged in a longitudinal study of urinary leaking from first trimester to 12 months following birth provide the data for this paper. Useful insights into the factors contributing to the maintenance of silence and ways to break the barriers to discussion of urinary incontinence before, during and following pregnancy were revealed. Given the prevalence of 30% of Australian women experiencing urinary leaking following pregnancy, it is imperative that midwives engage in discussion and support prevention of this unwelcome outcome of childbirth.  相似文献   
947.
This paper describes a simulation experiment to evaluate the relative effectiveness of rescheduling policies in capacity-constrained, just-in-time (JIT) make-to-stock production environments. Three performance measures were analyzed: average finished goods inventory, total units of sales lost, and a measure of schedule instability. Among the three loading methods we studied (level loading, front loading, and back loading), none was superior across all three performance measures. Level loading was the most robust, while back loading had an interaction effect with forecasting model and capacity level. Time fence scenario was found not to be as significant a factor in system performance as reported by previous research. Once an acceptable time fence scenario is selected, attempts to optimize this factor do not appear to offer significant improvement. It was found that higher demand variation, larger forecast errors, and tight capacity lead to the degradation of system performance. Judicious use of slack capacity helps a system to incorporate the periodic schedule changes typical of JIT systems.  相似文献   
948.
Much of the current knowledge pertaining to information technology (IT) and decision making is based on decades old technologies that revolved around a central computing function and application-specific systems. The purpose of this research is to examine the IT decision-making relationship within the emerging organizational computing (OC) environment permeated by spontaneous utilization of both application-and nonapplication-specific computing and communication technologies. Specifically, this study seeks to explore managers' perceptions of the emerging OC environment as a facilitator of their decision-making activities. To achieve a higher level of clarity than previous works, a two-dimensional research framework is developed with the IT dimension consisting of computing and communication, and the decision-making dimension differentiated between operational and managerial decisions. A survey instrument was constructed that measured the computing and communication dimensions of information technology use and their perceived effects upon operational and managerial decisions. The major findings of the study confirmed that managers recognize the value of general, nonapplication-specific information technologies in decision making, and that this recognition is highly associated with how intensively these information technologies are used. Additionally, it was found that the two dimensions of IT differ in their relationships to decision making, and that IT usage relates to managerial decisions differently than operational decisions. These study findings have significant implication for practice and research, especially in the context of information resource management in which the primary purpose of the IS function is the delivery of general information service to users rather than the development of specific IS applications.  相似文献   
949.
Biomonitoring programs for urinary chromium (Cr) typically attempt to evaluate occupational exposure via the inhalation route. This study investigated whether Cr can be detected in the urine of people following the ingestion of soils that contain relatively high concentrations of chromium in chromite ore processing residue (COPR). To evaluate the reasonableness of using urinary monitoring to assess environmental exposure, six volunteers ingested 400 mg of soil/day (low-dose group), two others ingested 2.0 g of soil/day (high-dose group) for 3 consecutive days, and one person ingested a placebo on each of 3 days. The soil and COPR mixture contained concentrations of total chromium (Cr) and hexavalent chromium [Cr(VI)] of 103 ± 20 and 9.3 ± 3.8 mg/kg, respectively. Therefore, the low-dose group ingested 41 μg Cr/day [including 3.7 μg Cr(VI)] and the high-dose group ingested 206 μg Cr/day [including 18.6 μg Cr(VI)] on each of 3 consecutive days. All urine samples were collected and analyzed individually for total Cr on the day prior to dosing, during the 3 days of dosing, and up to the first void 48 h after the last dose. No significant increases in urinary Cr excretion were found when background excretion data were compared with data following each of the 3 days of dosing or in daily mean urine concentrations of the high- vs the low-dose groups. It appears that Cr present in a soil and COPR mixture at Cr doses up to 200 μg/day is not sufficiently bioavailable for biomonitoring of urine to be informative. These results are consistent with previously published findings suggesting that incidental exposure to dusts and soils containing comparable levels of Cr will not result in increased concentrations of Cr in urine.  相似文献   
950.
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