全文获取类型
收费全文 | 3269篇 |
免费 | 114篇 |
专业分类
管理学 | 579篇 |
民族学 | 25篇 |
人才学 | 4篇 |
人口学 | 229篇 |
丛书文集 | 18篇 |
理论方法论 | 359篇 |
综合类 | 23篇 |
社会学 | 1649篇 |
统计学 | 497篇 |
出版年
2023年 | 25篇 |
2022年 | 13篇 |
2021年 | 15篇 |
2020年 | 59篇 |
2019年 | 95篇 |
2018年 | 88篇 |
2017年 | 108篇 |
2016年 | 103篇 |
2015年 | 79篇 |
2014年 | 90篇 |
2013年 | 520篇 |
2012年 | 120篇 |
2011年 | 95篇 |
2010年 | 98篇 |
2009年 | 100篇 |
2008年 | 110篇 |
2007年 | 96篇 |
2006年 | 117篇 |
2005年 | 136篇 |
2004年 | 94篇 |
2003年 | 99篇 |
2002年 | 95篇 |
2001年 | 76篇 |
2000年 | 55篇 |
1999年 | 62篇 |
1998年 | 54篇 |
1997年 | 35篇 |
1996年 | 39篇 |
1995年 | 27篇 |
1994年 | 51篇 |
1993年 | 46篇 |
1992年 | 39篇 |
1991年 | 47篇 |
1990年 | 41篇 |
1989年 | 34篇 |
1988年 | 34篇 |
1987年 | 36篇 |
1986年 | 25篇 |
1985年 | 45篇 |
1984年 | 44篇 |
1983年 | 30篇 |
1982年 | 31篇 |
1981年 | 20篇 |
1980年 | 14篇 |
1979年 | 16篇 |
1978年 | 16篇 |
1977年 | 16篇 |
1976年 | 15篇 |
1975年 | 12篇 |
1974年 | 18篇 |
排序方式: 共有3383条查询结果,搜索用时 109 毫秒
141.
Older people and poverty in rural Britain: Material hardships,cultural denials and social inclusions
This paper explores the relations between older people, poverty and place in rural Britain. It develops previous work on rural poverty that has pointed both to the significance of older people within the rural poor population and to their denials of poverty. The paper also connects with recent discussions on the complexity of relations between poverty and social exclusion in later life, as well as key themes emerging from studies of older people in disadvantaged urban neighbourhoods. Drawing on findings from a survey of 4000 households in rural Wales and interviews with older people in poverty in three rural places, the paper provides a detailed examination of the materialities and experiences of poverty among older people in rural places. In particular, it highlights how older poor groups construct their lives in complex terms with references made to both social inclusions and exclusions. The research also points to the significance of the socio-cultural contexts of place in shaping older people's understandings of poverty in rural areas. 相似文献
143.
The Brazilian organic food sector has experienced important growth during the last two decades. Brazilian smallholders, however, are facing huge challenges to enter and benefit from this growth in a sustainable way. Combining the lens of New Institutional Economics and socio-anthropology, we analyze six experiences of Brazilian smallholders who converted to organics in the 1990s’. Three different food systems are featured in this analysis: an alternative food system, which is strongly interwoven with the Brazilian Agro-ecological movement and two commercial food procurement systems oriented towards domestic and an export markets driven mainly by supermarket chains. The analytical focus was on 1) the governance of these food systems, 2) the constraints farmers are facing within these food systems and, 3) the benefits that they can expect from market inclusion. We highlighted the roles that NGOs, Faith-based organizations and public-related agencies play in supporting the inclusion of smallholders into all three food systems. We confirmed the arguments in support of pursuing the agro-ecological development based model in Brazil, but underlined that there is a critical lack of support for farmers included in the commercial market-oriented food systems. Such a lack is even more critical as the food systems driven by expanding supermarket chains are characterized by strong asymmetric power relations at the expense of smallholders. Considering the reluctance of NGOs and Faith-based organizations to support these farmers, we call for efforts to be made to provide a policy framework to enable public-related entities to secure sustainable inclusion into these systems and exit strategies for those experiencing exclusion from these highly competitive food systems. 相似文献
144.
Dunn K Delfabbro P Harvey P 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2012,28(2):253-272
It has been estimated that 80% of Australians engage in some form of gambling, with approximately 115,000 Australians experiencing severe problems (Productivity Commission 2010). Very few people with problem gambling seek help and, of those who do, large numbers drop-out of therapy before completing their program. To gain insights into these problems, participants who had either completed or withdrawn prematurely from an individual CBT-based problem gambling treatment program were interviewed to examine factors predictive of premature withdrawal from therapy as well as people??s ??readiness?? for change. The results indicated that there might be some early indicators of risk for early withdrawal. These included: gambling for pleasure or social interaction; non-compliance with homework tasks; gambling as a strategy to avoid personal issues or dysphoric mood; high levels of guilt and shame; and a lack of readiness for change. The study further showed that application of the term ??drop-out?? to some clients may be an unnecessarily negative label in that a number appear to have been able to reduce their gambling urges even after a short exposure to therapy. 相似文献
145.
146.
In the 1990ies the German Federal Institute for Occupational Safety and Health (FIOSH) published "Key Indicator Methods" (KIM) for the evaluation of manual material handling tasks. These methods served as a national German implementation of the EU Manual Handling Directive (90/269/EEC). These methods allow the evaluation of individual handling tasks like lifting or pushing. KIM tools do not allow evaluating complex handling tasks like a combined lifting and pushing task. With respect to the needs at shop floor level (e.g. logistics), MultipLa tries to bridge that gap by means of an EXCEL based worksheet using the KIM philosophy. In the past several algorithms for a risk assessment had been developed. At the moment MultipLa is in a test phase at several automotive OEMs. 相似文献
147.
Finite Element Modeling (FEM) has become a vital tool in the automotive design and development processes. FEM of the human body is a technique capable of estimating parameters that are difficult to measure in experimental studies with the human body segments being modeled as complex and dynamic entities. Several studies have been dedicated to attain close-to-real FEMs of the human body (Pankoke and Siefert 2007; Amann, Huschenbeth et al. 2009; ESI 2010). The aim of this paper is to identify and appraise the state-of-the art models of the human body which incorporate detailed pelvis and/or lower extremity models. Six databases and search engines were used to obtain literature, and the search was limited to studies published in English since 2000. The initial search results identified 636 pelvis-related papers, 834 buttocks-related papers, 505 thigh-related papers, 927 femur-related papers, 2039 knee-related papers, 655 shank-related papers, 292 tibia-related papers, 110 fibula-related papers, 644 ankle-related papers, and 5660 foot-related papers. A refined search returned 100 pelvis-related papers, 45 buttocks-related papers, 65 thigh-related papers, 162 femur-related papers, 195 knee-related papers, 37 shank-related papers, 80 tibia-related papers, 30 fibula-related papers and 102 ankle-related papers and 246 foot-related papers. The refined literature list was further restricted by appraisal against a modified LOW appraisal criteria. Studies with unclear methodologies, with a focus on populations with pathology or with sport related dynamic motion modeling were excluded. The final literature list included fifteen models and each was assessed against the percentile the model represents, the gender the model was based on, the human body segment/segments included in the model, the sample size used to develop the model, the source of geometric/anthropometric values used to develop the model, the posture the model represents and the finite element solver used for the model. The results of this literature review provide indication of bias in the available models towards 50th percentile male modeling with a notable concentration on the pelvis, femur and buttocks segments. 相似文献
148.
The study was conducted from the perspective of human factors engineering in order to compare the process that operators originally used to diagnose potential and actual faults with a process that included an expert system for diagnosing faults. The results of the study indicated that the existence of an expert system for fault diagnosis makes the task of fault diagnosis easier and reduces errors by quickly suggesting likely Abnormal Operating Procedures (AOPs). 相似文献
149.
Verbeek JH Martimo KP Kuijer PP Karppinen J Viikari-Juntura E Takala EP 《Work (Reading, Mass.)》2012,41(Z1):2299-2301
Training and provision of assistive devices are considered major interventions to prevent and treat low back pain (LBP) among workers exposed to manual material handling (MMH). To establish the effectiveness of training and provision of assistive devices in preventing and treating LBP an update of a Cochrane literature review was performed to November 2010. Randomised controlled trials (RCTs) and cohort studies with a concurrent control group (CCTs) were included. Nine RCTs (20.101 employees) and nine CCTs (1280 employees) were included for prevention: six more than in the previous version. No study on treatment was found. None of the included RCTs and CCTs provided evidence that training and provision of assistive devices prevented LBP when compared to no intervention or another intervention. 相似文献
150.
Paul C. Gorski 《Race Ethnicity and Education》2019,22(1):1-20
Activist burnout scholarship has inadequately considered challenges marginalized-identity activists, such as racial justice activists of color, experience in the course of their activism – challenges from which privileged identity activists, such as white racial justice activists, are protected. This article attempts to address this gap through a phenomenological study examining activist burnout in racial justice activists of color whose primary sites of activism are predominantly white colleges and universities in the United States at which they work. In order to stretch activist burnout theory to differentiate unique marginalized-identity activists’ burnout causes from general causes that do not consider specific activist identities, the lens of racial battle fatigue is employed. Findings show that, although participants shared many causes of burnout that are consistent with general non-identity-specific causes described in existing literature, racial battle fatigue hastened their burnout while their activist commitments elevated their battle fatigue. 相似文献