全文获取类型
收费全文 | 5333篇 |
免费 | 259篇 |
国内免费 | 161篇 |
专业分类
管理学 | 373篇 |
劳动科学 | 2篇 |
民族学 | 23篇 |
人才学 | 1篇 |
人口学 | 471篇 |
丛书文集 | 310篇 |
理论方法论 | 623篇 |
综合类 | 1822篇 |
社会学 | 2044篇 |
统计学 | 84篇 |
出版年
2024年 | 11篇 |
2023年 | 87篇 |
2022年 | 79篇 |
2021年 | 111篇 |
2020年 | 202篇 |
2019年 | 200篇 |
2018年 | 220篇 |
2017年 | 302篇 |
2016年 | 209篇 |
2015年 | 181篇 |
2014年 | 231篇 |
2013年 | 1289篇 |
2012年 | 287篇 |
2011年 | 280篇 |
2010年 | 190篇 |
2009年 | 191篇 |
2008年 | 211篇 |
2007年 | 227篇 |
2006年 | 251篇 |
2005年 | 195篇 |
2004年 | 187篇 |
2003年 | 134篇 |
2002年 | 116篇 |
2001年 | 99篇 |
2000年 | 52篇 |
1999年 | 29篇 |
1998年 | 19篇 |
1997年 | 27篇 |
1996年 | 15篇 |
1995年 | 13篇 |
1994年 | 15篇 |
1993年 | 11篇 |
1992年 | 5篇 |
1991年 | 6篇 |
1990年 | 6篇 |
1989年 | 6篇 |
1988年 | 8篇 |
1987年 | 9篇 |
1986年 | 3篇 |
1985年 | 3篇 |
1984年 | 5篇 |
1983年 | 5篇 |
1982年 | 3篇 |
1981年 | 5篇 |
1980年 | 2篇 |
1979年 | 10篇 |
1978年 | 6篇 |
排序方式: 共有5753条查询结果,搜索用时 31 毫秒
111.
江玉荣 《安徽大学学报(哲学社会科学版)》2007,31(6):67-71
当前,知识产权保护的国际化,实际上就是发达国家知识产权制度的国际化.在全球不同背景下强制性地运用单一制度必然会出现不和谐的声音,全球性的公共健康危机凸显了这种冲突,引发舆论对知识产权国际保护合理性的探讨.知识产权与健康权都是社会承认的基本人权,其中任何一种在特定的背景中都有自身的价值,但并非所有的人权都是并列的.当全球有数以万计的人正在遭受公共健康威胁时,孰重孰轻的问题就不言而喻了,应当使公共健康与知识产权国际保护已经失衡的天平回归平衡. 相似文献
112.
113.
大学生就业价值取向的问题与对策分析 总被引:1,自引:0,他引:1
周晓虹 《长春工程学院学报(社会科学版)》2007,8(3):86-88
论述了当代大学生就业价值取向存在的主要问题;当代大学生就业价值取向偏差的负面影响;引导大学生就业价值取向的主要措施。并指出高校应加强对大学生的择业指导,引导其价值取向,帮助大学生正确制定职业规划,实现顺利就业。 相似文献
114.
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
115.
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
116.
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
117.
邵坚 《华北水利水电学院学报(社会科学版)》2006,22(3):110-112
河流健康不是严格意义上的科学概念而是一种河流管理的评估工具。人类在开发利用流域水资源的过程中,由于保护不够或滥加利用,一些河流发生污染、断流现象,影响了河流的自然和社会功能,失去了河流的自身价值,危及河流的健康生命。维系河流的健康生命和水安全密切相关。河流污染是我国河流健康的最大威胁,治污是我国现阶段河流生态环境建设的首要任务,同时在水电工程建设中应强化对生态环境的监管。 相似文献
118.
李旸 《华北电力大学学报(社会科学版)》2006,(3):136-137
本文在分析贫困大学生普遍存在的心理问题的基础上,阐述了加强大学生心理健康教育的主要内容,并积极探索通过心理健康知识宣传、心理评估、个体咨询、团体咨询等途径加大对贫困大学生的心理健康教育力度,以达到提高贫困大学生心理健康水平,促进贫困大学生健康成长的目的。 相似文献
119.
《Women and birth : journal of the Australian College of Midwives》2020,33(3):e216-e226
BackgroundIn Ethiopia, maternal health service utilization is still unacceptably low. The societal and cultural factors that constrain women from attending these services have not yet been sufficiently explored. Using qualitative methods, we aimed to explore the factors that delay maternal health service utilization in eastern Ethiopia.MethodA total of 13 audio-recorded focus group discussions were conducted comprising 88 participants. We conducted separate group discussions with reproductive aged women, mothers-in-law, traditional birth attendants, husbands, and Health Extension Workers to capture their knowledge, practices, feelings, thoughts and attitudes towards maternal health service utilization. The recorded sessions were transcribed into the local language and then translated into English for analysis.ResultThe study identified a number of factors that may delay maternal health service utilization. Factors were grouped using the Three Delays model as a framework. Low level of awareness regarding need, poor involvement of husband, perceived absence of health problems, social power, community misperceptions and cultural restrictions, negative attitudes towards male midwives, acceptance of traditional birth attendants and poor social networking were Delay One factors. Lack of physical accessibility and high transportation costs were categorised as Delay Two factors for skilled birth care attendance. Perceived or experienced poor quality of care were categorised as Delay Three factors for both skilled birth and postnatal care utilization.ConclusionDespite the ongoing government measures to improve maternal health service utilization in Ethiopia, numerous factors continue to contribute to delays in service use, which in turn contribute to high maternal mortality. 相似文献
120.
《Women and birth : journal of the Australian College of Midwives》2020,33(3):231-239
BackgroundStudies show that postnatal depression affects around 10–16% of women globally. It is associated with earlier cessation of breast feeding, which can negatively impact infants’ long-term development. Mechanisms underpinning associations between mental health and women’s decision to commence and continue to breastfeed are complex and poorly understood.AimThe aim of this review was to investigate breastfeeding experiences, perspectives, and support needs of women with postnatal depression. No previous reviews were identified which had addressed this aim.MethodA systematic search was conducted of six databases to identify relevant qualitative studies. Six included studies were critically appraised and synthesised using thematic synthesis.FindingsFive themes were identified: (1) desire to breastfeed and be a ‘good mother’, (2) struggles with breastfeeding, (3) mixed experiences of support from healthcare professionals, (4) importance of practical and social support, (5) support for mental health and breastfeeding. Most women with postnatal depression expressed strong intentions to breastfeed, although some perceived ‘failure’ to breastfeed triggered their mental health problems. Practical and non-judgemental support for their mental health needs and for successful breastfeeding from healthcare professionals, family and friends are needed.ConclusionMost women with postnatal depression desired to breastfeed but experienced breastfeeding difficulties that could impact on their mental health. By offering women with postnatal depression tailored and timely support, healthcare professionals could help women minimize breastfeeding problems which could consequently impact on their mental well-being and ensure they and their infants have opportunity to benefit from the advantages that breastfeeding offers. 相似文献