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   8192篇
  免费   196篇
管理学   1444篇
民族学   65篇
人才学   5篇
人口学   612篇
丛书文集   40篇
理论方法论   932篇
综合类   90篇
社会学   4081篇
统计学   1119篇
  2023年   66篇
  2022年   38篇
  2021年   51篇
  2020年   159篇
  2019年   248篇
  2018年   223篇
  2017年   316篇
  2016年   242篇
  2015年   216篇
  2014年   237篇
  2013年   1317篇
  2012年   317篇
  2011年   337篇
  2010年   259篇
  2009年   232篇
  2008年   263篇
  2007年   276篇
  2006年   275篇
  2005年   282篇
  2004年   243篇
  2003年   215篇
  2002年   229篇
  2001年   189篇
  2000年   144篇
  1999年   151篇
  1998年   116篇
  1997年   99篇
  1996年   86篇
  1995年   79篇
  1994年   94篇
  1993年   105篇
  1992年   90篇
  1991年   93篇
  1990年   88篇
  1989年   84篇
  1988年   82篇
  1987年   72篇
  1986年   63篇
  1985年   71篇
  1984年   89篇
  1983年   65篇
  1982年   72篇
  1981年   59篇
  1980年   51篇
  1979年   43篇
  1978年   40篇
  1977年   35篇
  1976年   35篇
  1975年   31篇
  1974年   29篇
排序方式: 共有8388条查询结果,搜索用时 15 毫秒
951.
Service firms play an increasingly important role in the global economy. However, the internationalization strategies of such firms, and especially their distribution system choices, have been underexplored in the international management literature. One specific service industry that has internationalized rapidly in recent years is the insurance industry. This paper examines the determinants and performance implications of the choice by international insurance firms between two rival distribution systems: direct writing and independent sales agents. Drawing on the transaction cost theory-based literature on resource commitment, control, and risk, we develop hypotheses on the determinants of the choice between these two distribution systems and on the performance implications of this choice for insurance firms. Analyzing a sample of 168 distribution entries into the United States by insurance firms from six foreign countries over the 1992–2000 period, we find that cultural distance has a U-shaped effect on the probability of direct writing, and that an insurer's intangible assets have a positive effect on this probability. We also find that the direct writing system performs better in terms of profitability, but that the independent agency system performs better in terms of market share growth.  相似文献   
952.
Linz D  Paul B  Yao M 《Journal of sex research》2006,43(2):182-93; discussion 194-201
An empirical study was undertaken in San Diego, California, to test assumptions made by the government and by conservative religious policy advocates that there is a greater incidence of crime in the vicinity of peep show establishments. We asked two questions: (a) Is criminal activity in San Diego particularly acute at peep show establishments compared to surrounding control locations? and (b) Is criminal activity in San Diego disproportionately greater at or near peep show establishments between the hours of 2 a.m. and 6 a.m. compared to other times of the day? The levels of crime activity and the expenditure of police resources were examined by measuring the number of calls-for-service (CFSs) to the police within a 1,000-ft. area on either side of the peep show establishments and comparably-sized control areas beyond the immediate 1,000-foot area. A more focused late-night (2 a.m. to 6 a.m.) analysis was also undertaken. The results showed no reliable evidence of differences in crime levels between the control and test areas, nor was there any evidence of disproportionately greater amounts of crime within the 2 a.m. to 6 a.m. time period in the areas surrounding the peep show establishments. We concluded that San Diego does not have a problem with crime at the peep show establishments generally, nor is there a heightened problem with crime during the 2 a.m. to 6 a.m. period. We discuss the implications of assuming that peep show establishments are associated with negative effects in the community and the possibility of viewpoint discrimination against sex communication.  相似文献   
953.
In preparation for an electronic mail (e-mail) and web-based health promotion intervention across multiple worksites, secure, regulatory-compliant, user-friendly e-mail and Internet applications were used to recruit potential participants across worksites, to enroll participants, and to collect baseline health assessment data. Specific hardware and software information technology environments were required of the 19 participating worksites. Sequential e-mails introduced the study and invited participation. Twenty-four percent of all employees (1106 of approximately 4600) provided consent. E-mail delivered a web link for the baseline study assessment, and reminder e-mails were sent to prompt completion. Of those who consented, 888 (80%) completed baseline health and behavior data surveys. An HTML-native web survey software was more stable across computing environments. Using e-mail and web assessment, this research recruited, enrolled, and collected data from more than 850 participants. Technical and operational challenges emerged at each step. Solutions and recommendations are discussed. Overall, this experience suggests that the use of e-mail and web software can facilitate recruitment, enrollment, and data acquisition through direct contact with study participants. This experience yields a series of lessons learned for using e-mail and the Internet to support multi-site trials.  相似文献   
954.
Adolescents with high sensation-seeking tendencies often seek out thrill seeking experiences to satisfy their need for stimulation and sensation. In many cases, sensation-seeking adolescents fulfill their need for stimulation and sensation by using illicit substances. However, not all high sensation seekers use drugs, although the factors that prevent or buffer sensation seeking remain unexplored. This study fills this gap in extant research by examining the role of authoritative parenting as a protective factor that prevents or buffers cigarette and marijuana use by adolescents with high sensation-seeking tendencies. Data from 1461 adolescents attending 6th through 8th grades in central Colorado were gathered during a semester-long classroom-based intervention to prevent the onset or further use of cigarettes. Results indicate that authoritative parenting moderated the effect of sensation seeking on adolescent marijuana attitudes, intentions, and peer influence but not behaviors. Further, authoritative parenting was a stronger influence than sensation seeking on cigarette-related outcomes with just the opposite effect observed for marijuana-related outcomes.  相似文献   
955.
Recent literature emphasizes that recovery from schizophrenia involves recovery within one's own narrative of an integral sense of identity, agency, social connection, and worth. While this is intuitively appealing and consistent with a wide range of literature, it raises the issue of how to best help people do this in individual psychotherapy. In this article, we explore how psychotherapy might help people construct new narratives or storied understandings of their lives and thereby promote recovery from schizophrenia. Exemplified with two individual examples, we first discuss the barriers that challenge and the techniques that help psychotherapists seeking to enter into dialogue with people with severe mental illness. We also offer a theoretical model of how the revitalization of dialogues within therapy can be conceptualized as a process that promotes recovery and discuss the objective measurement of such outcomes.  相似文献   
956.
Given the prevalence of alcohol consumption and the relative infrequency of harm among college students, the authors sought to determine how most college students protect themselves from alcohol-related harm. An analysis of the aggregate National College Health Assessment data identified a cluster of personal protective behaviors that correlated with reduced risk when drinking. Further analysis revealed that nearly three-quarters of student drinkers regularly employ at least 1 protective behavior, and well over half of the students who use protective behaviors routinely employ 2 or more. In addition, the data reveal that student drinkers employ situational abstinence, with nearly 7 out of 10 students reporting that they sometimes or usually refrain from drinking alcohol when they socialize. The use of these protective behaviors is a strong predictor of safety and harm for college-student drinkers.  相似文献   
957.
OBJECTIVE: Our objective was to develop an organized system to assess individual and group exposure to animal hazards on a college campus. MAIN POINTS: The scope and complexity of college health services continue to expand as campuses confront unforeseen exposures and disease entities. Of great concern are students and faculty who are exposed to potentially life threatening and other serious conditions during their academic work. CONCLUSION: A college health service developed an effective animal-hazard surveillance questionnaire that could be scanned and analyzed for individual and group exposure to hazards and the presence or absence of protective measures. The college then provided appropriate preventive services.  相似文献   
958.
959.
This paper examined the nature of irrational gambling-related cognitions in a sample of 926 adolescents (mean age = 14.5 years) sampled from Australian schools. Students were differentiated according to gambling status and administered a series of items that assessed their understanding of objective odds, the nature of randomness, the role of skill in gambling, and the perceived profitability of gambling. The results confirmed previous findings that problem gamblers tend to be more irrational in their perceptions, as indicated by stronger beliefs in the role of skilful play in chance activities, and that gambling is a potentially profitable activity. However, counter intuitively, problem gamblers did not appear to have any poorer understanding of objective probabilities. These results are discussed in terms of Sevigny and Ladouceur’s (2004) concept of cognitive switching as well as psychological research concerning the role of emotional and motivational factors in the development of an illusion of control. The implications of these findings for gambling education programs are discussed.
Paul DelfabbroEmail:
  相似文献   
960.
Kershaw  Paul 《Social politics》2006,13(3):341-371
Men’s care patterns are relatively inelastic despite dramaticshifts in women’s labor force participation. The articlerecommends a caregiving analogue to workfare that would usepolicy more aggressively to influence men’s choices betweenemployment and care. The "carefair" concept is defended by invokingtwo arguments for enforcing work duties common in liberal regimes:the moral hazard argument and the new paternalist competenceargument. The logics explicit in these arguments resonate substantiallywith theorists and practitioners in the liberal cultural milieuand can be appropriated to justify state intervention that wouldchallenge both patriarchal socialization patterns and economicincentives.  相似文献   
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