全文获取类型
收费全文 | 5764篇 |
免费 | 279篇 |
国内免费 | 166篇 |
专业分类
管理学 | 361篇 |
劳动科学 | 2篇 |
民族学 | 26篇 |
人才学 | 2篇 |
人口学 | 487篇 |
丛书文集 | 331篇 |
理论方法论 | 660篇 |
综合类 | 2137篇 |
社会学 | 2110篇 |
统计学 | 93篇 |
出版年
2024年 | 11篇 |
2023年 | 93篇 |
2022年 | 82篇 |
2021年 | 115篇 |
2020年 | 205篇 |
2019年 | 214篇 |
2018年 | 232篇 |
2017年 | 310篇 |
2016年 | 222篇 |
2015年 | 198篇 |
2014年 | 239篇 |
2013年 | 1374篇 |
2012年 | 290篇 |
2011年 | 282篇 |
2010年 | 208篇 |
2009年 | 214篇 |
2008年 | 228篇 |
2007年 | 253篇 |
2006年 | 289篇 |
2005年 | 220篇 |
2004年 | 231篇 |
2003年 | 168篇 |
2002年 | 145篇 |
2001年 | 129篇 |
2000年 | 65篇 |
1999年 | 30篇 |
1998年 | 22篇 |
1997年 | 27篇 |
1996年 | 15篇 |
1995年 | 16篇 |
1994年 | 16篇 |
1993年 | 14篇 |
1992年 | 5篇 |
1991年 | 7篇 |
1990年 | 5篇 |
1989年 | 4篇 |
1988年 | 8篇 |
1987年 | 9篇 |
1986年 | 3篇 |
1985年 | 3篇 |
1984年 | 2篇 |
1983年 | 3篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1979年 | 1篇 |
排序方式: 共有6209条查询结果,搜索用时 312 毫秒
121.
在我国大陆地区迄今缺乏心理健康学校社会工作的专门研究,但港台地区关于学校社会工作体系及其研究却包含着心理健康的部分内容,并且初步形成了各自的特色;通过对港台地区学校社会工作体系现状、趋势和特点的系统梳理与探讨,可以为大陆构建大中学生心理健康学校社会工作保障系统及其研究提供借鉴和启示. 相似文献
122.
LaBrie RA LaPlante DA Nelson SE Schumann A Shaffer HJ 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2007,23(3):347-362
Internet gambling is growing rapidly, as is concern about its possible effect on the public’s health. This paper reports the
results of the first prospective longitudinal study of actual Internet sports gambling behavior during eight study months.
Data include recorded fixed-odds bets on the outcome of sporting contests and live-action bets on the outcome of events within
contests for 40,499 Internet sports gambling service subscribers who enrolled during February 2005. We tracked the following
primary gambling behaviors: daily totals of the number of bets made, money bet, and money won. We transformed these variables
into measures of gambling involvement. We analyzed behavior for both fixed-odds and live-action bets. The median betting behavior
of the 39,719 fixed-odds bettors was to place 2.5 bets of €4 (approximately $5.3 US) every fourth day during the median 4 months
from first to last bet. This typical pattern incurred a loss of 29% of the amount wagered. The median betting behavior of
the 24,794 live-action bettors was to place 2.8 wagers of €4 every fourth day during the median duration of 6 weeks at a loss
of 18% of the amount wagered. We also examined the behavior of empirically determined groups of heavily involved bettors whose
activity exceeded that of 99% of the sample. 相似文献
123.
Jrn Schulz Jan Terje Kvaly Kjersti Engan Trygve Eftestl Samwel Jatosh Hussein Kidanto Hege Ersdal 《Journal of applied statistics》2020,47(11):1915
This article considers the analysis of complex monitored health data, where often one or several signals are reflecting the current health status that can be represented by a finite number of states, in addition to a set of covariates. In particular, we consider a novel application of a non-parametric state intensity regression method in order to study time-dependent effects of covariates on the state transition intensities. The method can handle baseline, time varying as well as dynamic covariates. Because of the non-parametric nature, the method can handle different data types and challenges under minimal assumptions. If the signal that is reflecting the current health status is of continuous nature, we propose the application of a weighted median and a hysteresis filter as data pre-processing steps in order to facilitate robust analysis. In intensity regression, covariates can be aggregated by a suitable functional form over a time history window. We propose to study the estimated cumulative regression parameters for different choices of the time history window in order to investigate short- and long-term effects of the given covariates. The proposed framework is discussed and applied to resuscitation data of newborns collected in Tanzania. 相似文献
124.
对外开放条件下产业安全研究的生态学思路 总被引:1,自引:0,他引:1
许芳 《海南大学学报(人文社会科学版)》2007,25(6):643-647
随着中国加入WTO,对外开放程度不断加大,产业安全问题越来越引起人们的重视。以往的研究多采用经济学和数学方法,从生态学角度对产业安全进行研究在国内外尚未见报道。论题借鉴生态系统健康理论提出了产业生态系统的概念、产业安全的健康指数和敏感性指标;借鉴生态入侵理论提出了产业入侵假说,如多样性阻抗假说、天敌逃避假说、空生态位假说、资源机遇假说、干扰假说、生态位机遇假说。生态学方法为产业安全研究提供了一种新的思路。 相似文献
125.
126.
Demographic and Health Survey data from nine African countries make it clear that HIV/AIDS prevention knowledge has been increasing.
Still, in many cases, fewer than half of adult respondents can identify specific prevention behaviors. Knowledge is lowest
in rural areas and among women. HIV testing generally remains rare but is highly variable across countries, likely reflecting
differences in the supply of testing services. In most cases, schooling and wealth impacts on prevention knowledge have either
been stable or have increased; hence, in the majority of contexts, initial disparities in knowledge by education and wealth
levels have persisted or widened.
相似文献
David E. SahnEmail: |
127.
Curt Hagquist S. R. Silburn S. R. Zurbrick G. Lindberg G. Ringbck Weitoft 《International Journal of Social Welfare》2000,9(3):211-219
The purpose of this explorative study is to bring together a variety of Swedish data sources with indicators of youth mental health and living conditions in order to illuminate trends during the last decades, elucidate possible determinants of mental ill health and develop hypotheses to explain the observed trend patterns. The analyses in the study reveal some surprising inconsistencies with respect to the mental health trends among young people during the 1990s. Most striking is the pattern of increasing youth unemployment coinciding with almost inverse trends in the rates of suicide. The secular trends in fatal suicides during this period do not show any increase but some actual decrease in sub‐populations despite high sustained levels of unemployment. In contrast, survey data indicate that the general mental health of youth during this period appears to have deteriorated. 相似文献
128.
Auksė Endriulaitienė Aistė Pranckevičienė Rasa Markšaitytė Douglas R. Tillman David D. Hof 《Journal of workplace behavioral health》2019,34(2):129-148
This study aimed to explore the correlation between job burnout and self-stigma of seeking help among nonmedical mental health care providers (psychologists, social workers, and counselors) in two countries – Lithuania and the US. The study included 234 professionals (111 social workers and 123 psychologists) from Lithuania and 93 professionals (33 counselors, 23 social workers, and 37 psychologists) from the US on a voluntary basis (93% females, mean age – 39.81?years). They completed a self-reported questionnaire with the Self-Stigma of Seeking Help Scale (SSOSH) and the Maslach Burnout Inventory-General Survey (MBI-GS). The results revealed a statistically significant positive correlation between self-stigmatization and burnout in the Lithuanian sample, but only weak positive correlation between depersonalization and self-stigma of seeking help in the US sample. The relationship between the self-stigma of seeking help and burnout was stronger in the Lithuanian sample of professionals when compared to their colleagues in the US. 相似文献
129.
Yazan A. Al-Ajlouni Su Hyun Park Eric W. Schrimshaw William C. Goedel 《Journal of gay & lesbian social services》2019,31(3):358-369
It has been demonstrated that sexual minority men (SMM) participate in sexting. While research has shown that engagement in the exchange of sexually explicit media is associated with poor health outcomes, no previous research has investigated its association with sleep health outcomes. This study sought to examine the association between sexually explicit media and sleep health among SMM, a population that suffers from poor sleep health. A popular geosocial networking application was used to recruit SMM individuals (N?=?580) in the Paris, France, metropolitan area. Multivariate analyses, adjusting for sociodemographics, were used to test the association between the frequency of sexually explicit messaging and three dimensions of sleep health: (1) sleep quality, (2) sleep duration, and (3) two aspects of sleep problems. In multivariate analyses, those who reported engaging in sexually explicit messaging more were more likely to report getting less than seven?hours of sleep (aRR = 1.24; 95% CI = 1.08, 1.43) compared with those who reported engaging in sexually explicit messaging less. No significant associations were found between sexting and sleep quality or reporting sleep problems. Sexually explicit messaging was associated with shorter sleep duration. Intervention targeted at individuals who sext could potentially improve sleep health outcomes. 相似文献
130.
The Government of Cambodia is implementing ambitious reform initiatives to improve the country's social health protection system. In January 2018, it was announced that the Health Equity Fund (HEF), which is fully subsidized by a joint government‐donor initiative for the reimbursement of user fees for the poor at public health facilities, is to be expanded to some segments of informal workers belonging to associations, as well as to commune and village chiefs. Since 2017, the National Social Security Fund (NSSF) has provided social health insurance for formal economy workers in enterprises with eight employees or more. In January 2018, it was expanded to civil servants and all employees regardless of the size of the enterprise. However, this article highlights that the new ambitious reforms are not accompanied by careful planning as regards funding, service delivery, human resources and institutional design. This article therefore aims to examine key policy issues and challenges for Cambodia's ambitious reform of its social health protection system in terms of resource generation, population coverage, strategic purchasing and governance. 相似文献