全文获取类型
收费全文 | 1981篇 |
免费 | 124篇 |
专业分类
管理学 | 260篇 |
民族学 | 20篇 |
人才学 | 1篇 |
人口学 | 202篇 |
丛书文集 | 14篇 |
理论方法论 | 288篇 |
综合类 | 21篇 |
社会学 | 1023篇 |
统计学 | 276篇 |
出版年
2024年 | 4篇 |
2023年 | 26篇 |
2022年 | 15篇 |
2021年 | 33篇 |
2020年 | 74篇 |
2019年 | 94篇 |
2018年 | 88篇 |
2017年 | 113篇 |
2016年 | 116篇 |
2015年 | 73篇 |
2014年 | 73篇 |
2013年 | 301篇 |
2012年 | 104篇 |
2011年 | 99篇 |
2010年 | 79篇 |
2009年 | 70篇 |
2008年 | 61篇 |
2007年 | 62篇 |
2006年 | 61篇 |
2005年 | 50篇 |
2004年 | 62篇 |
2003年 | 47篇 |
2002年 | 39篇 |
2001年 | 22篇 |
2000年 | 22篇 |
1999年 | 24篇 |
1998年 | 25篇 |
1997年 | 19篇 |
1996年 | 19篇 |
1995年 | 17篇 |
1994年 | 28篇 |
1993年 | 19篇 |
1992年 | 23篇 |
1991年 | 13篇 |
1990年 | 10篇 |
1989年 | 11篇 |
1988年 | 11篇 |
1987年 | 5篇 |
1986年 | 6篇 |
1985年 | 11篇 |
1984年 | 5篇 |
1983年 | 7篇 |
1982年 | 5篇 |
1981年 | 5篇 |
1980年 | 9篇 |
1979年 | 9篇 |
1978年 | 5篇 |
1976年 | 7篇 |
1974年 | 4篇 |
1971年 | 4篇 |
排序方式: 共有2105条查询结果,搜索用时 15 毫秒
941.
Deanna Linville Krista Chronister Tom Dishion Jeff Todahl John Miller Daniel Shaw Francis Gardner Melvin Wilson 《Journal of marital and family therapy》2010,36(2):244-255
This longitudinal study examined the relationship between couple relationship satisfaction, parenting practices, parent depression, and child problem behaviors. The study participants (n = 148) were part of a larger experimental study that examined the effectiveness of a brief family-centered intervention, the Family Check-Up model. Regression analysis results indicated that our proposed model accounted for 38% of the variance in child problem behavior at Time 2, with child problem behavior and couple relationship satisfaction at child age 2 years each accounting for a significant portion of the variance in child problem behavior at age 3. Couple relationship satisfaction directly predicted child behavior problems over time. Clinical and research implications are discussed. 相似文献
942.
Daniel A. Yon 《Social Dynamics》2013,39(2):144-163
Abstract This paper focuses on the South Atlantic Oceanic World, and the pivotal place of the Island of St. Helena within that world, as both a context and a conceptual tool for thinking about race-making and race-mixing in South Africa. Drawing on various historical ‘snapshots’ from documentary and archival sources on St. Helena, as well as from exploratory fieldwork in South Africa, St. Helena, an Atlantic World of flux and fluidity, is invoked as a contrast to an Apartheid world that insists upon fixity. These contrasting worlds are the context for thinking about the racial identifications made by St. Helenian immigrants, and their descendants in South Africa. Following Robert Young the paper is interested in ‘counter-active’ constructions of race, which means that the context of race-mixing that this paper invokes is simultaneously a context for race-making. 相似文献
943.
Stephan Daniel Richter Maureen Marchioro 《Organisationsberatung, Supervision, Coaching》2013,20(2):143-161
The integration of theory and practice in combination with ethical standards has been clearly defined as a scheme in the field of coaching, but there is still a long way to go. Within the scope of a field study and challenged by numerous perceptions, terms like ‘ethics’ and ‘idea of man’ in the context of coaching have been closely analysed, edited in a structured way and evaluated. These steps were followed by the examination and investigation of the websites of a selected number of providers and trainers of coaching, concerning the extent to which these websites include information on the meta model as well as on the theoretical level according to A. Schreyögg. Based on the rather sobering findings, our study concludes by specifying the cornerstones of a ‘check list’. This tool may help to classify providers and trainers. 相似文献
944.
José Ramón Rodríguez-Pérez Celestino Ordóñez Javier Roca-Pardiñas Daniel Vecín-Arias Fernando Castedo-Dorado 《Risk analysis》2020,40(7):1418-1437
It is widely accepted that the relationship between lightning wildfire occurrence and its influencing factors vary depending on the spatial scale of analysis, making the development of models at the regional scale advisable. In this study, we analyze the effects of different biophysical variables and lightning characteristics on lightning-caused forest wildfires in Castilla y León region (Central Spain). The presence/absence of at least one lightning-caused fire in any 4 × 4-km grid cell was used as a dependent variable and vegetation type and structure, terrain, climate, and lightning characteristics were used as possible covariates. Five prediction methods were compared: a generalized linear model (GLM), a random forest model (RFM), a generalized additive model (GAM), a GAM that includes a spatial trend function (GAMs) and a spatial autoregressive model (AUREG). A GAMs with just one covariate, apart from longitude and latitude for each observation included as a combined effect, was considered the most appropriate model in terms of both predictive ability and simplicity. According to our results, the probability of a forest being affected by a lightning-caused fire is positively and nonlinearly associated with the percentage of coniferous woodlands in the landscape, suggesting that occurrence is more closely associated with vegetation type than with topography, climate, or lightning characteristics. The selected GAMs is intended to inform the Regional Government of Castilla y León (the fire and fuel agency in the region) regarding identification of areas at greatest risk so it can design long-term forest fuel and fire management strategies. 相似文献
945.
Daniel Fredriksson 《International Journal of Social Welfare》2020,29(3):270-284
This study drew on recurrent debates related to labour market mobility among the unemployed and those outside the labour force and asked to what extent active labour market policies (ALMP) increase employment in these two groups. By utilising new programme‐level data on ALMP, the study analysed the impact of core programmes directed towards registered unemployed; peripheral programmes that target the inactive part of the working age population; and mixed programmes targeting both groups. The programme data were combined with individual‐level panel data from the European Survey on Income and Living Conditions and analysed using multilevel analysis. The main results show that both resources devoted to programmes and their size were related to employment transitions. Transitions among the unemployed were mainly associated with spending on core programmes, whereas the inactive seemed to benefit from increased spending on all types of programmes, as well as increased scope of mixed programmes. 相似文献
946.
Maya-Jariego Isidro Holgado-Ramos Daniel González-Tinoco Elena Muñoz-Alvis Andrés Ortega Manuela 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2020,31(6):1212-1225
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - This study analyzes the strategies displayed by non-governmental organizations in the social services sector to face the... 相似文献
947.
Daniel F. Perkins Keith R. Aronson Nicole R. Morgan Julia A. Bleser Dawne Vogt Laurel A. Copeland 《Journal of social service research》2020,46(2):241-255
AbstractA substantial minority of veterans struggle as they reintegrate into civilian life, reporting problems with vocational attainment, legal/financial/housing challenges, physical and mental health conditions, and social/interpersonal issues. While there are thousands of programs and services offered to veterans, little is known about which ones they use. In the current exploratory study, veterans separated from active duty in the prior three-months (48,965) were invited to complete a survey. Two primary questions were addressed: What programs/services did veterans use to assist in their reintegration to civilian life? What specific components/attributes of those programs did veterans report using? A total of 9566 veterans completed the survey. Approximately, two-thirds of veterans used at least one program to enhance their well-being, while one-third reported using multiple programs across multiple domains. Veterans primarily sought assistance for employment and educational advancement. Fewer veterans sought assistance for legal/financial/housing, health, and social functioning challenges. Social service providers and policy makers should be aware of the resources veterans use as they reintegrate into civilian life. Future research should examine factors that predict the use and nonuse of veteran reintegration programs, how use changes over time, and what factors predict program/service use, particularly among veterans at risk for poor transition outcomes. 相似文献
948.
949.
Thomas J. O’Shea Daniel J. Neubaum Melissa A. Neubaum Paul M. Cryan Laura E. Ellison Thomas R. Stanley Charles E. Rupprecht W. John Pape Richard A. Bowen 《Urban Ecosystems》2011,14(4):665-697
We describe use of Fort Collins, Colorado, and nearby areas by bats in 2001–2005, and link patterns in bat ecology with concurrent
public health surveillance for rabies. Our analyses are based on evaluation of summary statistics, and information-theoretic
support for results of simple logistic regression. Based on captures in mist nets, the city bat fauna differed from that of
the adjacent mountains, and was dominated by big brown bats (Eptesicus fuscus). Species, age, and sex composition of bats submitted for rabies testing locally and along the urbanizing Front Range Corridor
were similar to those of the mist-net captures and reflected the annual cycle of reproduction and activity of big brown bats.
Few submissions occurred November- March, when these bats hibernated elsewhere. In summer females roosted in buildings in
colonies and dominated health samples; fledging of young corresponded to a summer peak in health submissions with no increase
in rabies prevalence. Roosting ecology of big brown bats in buildings was similar to that reported for natural sites, including
colony size, roost-switching behavior, fidelity to roosts in a small area, and attributes important for roost selection. Attrition
in roosts occurred from structural modifications of buildings to exclude colonies by citizens, but without major effects on
long-term bat reproduction or survival. Bats foraged in areas set aside for nature conservation. A pattern of lower diversity
in urban bat communities with dominance by big brown bats may occur widely in the USA, and is consistent with national public
health records for rabies surveillance. 相似文献
950.
Benjamin Daniel K. Dougan William R. Buschena David 《Journal of Risk and Uncertainty》2001,22(1):35-57
Using new survey data, we test the hypothesis that individuals' perceptions of health and safety risks are unbiased. While we find that respondents' estimates of those risks are sensitive to the information they are given to anchor their responses, we find no evidence to support the widely held view that people tend to underestimate the frequency of relatively common risks. The slight tendency for respondents to overestimate the frequency of extremely unlikely events can plausibly be interpreted as truncation bias. Overall, the accuracy of our subjects' estimates varies in a manner that is fully consistent with simple conjectures about the health and safety information that is of greatest relevance to them in the conduct of their lives. The marked difference between the results of our survey and those of previous studies appears to be attributable to the practical implications of costly information and the common failure of investigators to account for the fact that rational individuals will choose to acquire less than full information about many uncertain events. 相似文献