全文获取类型
收费全文 | 7944篇 |
免费 | 138篇 |
专业分类
管理学 | 1126篇 |
民族学 | 32篇 |
人才学 | 1篇 |
人口学 | 721篇 |
丛书文集 | 33篇 |
理论方法论 | 699篇 |
综合类 | 283篇 |
社会学 | 3380篇 |
统计学 | 1807篇 |
出版年
2021年 | 52篇 |
2020年 | 90篇 |
2019年 | 129篇 |
2018年 | 167篇 |
2017年 | 245篇 |
2016年 | 199篇 |
2015年 | 149篇 |
2014年 | 175篇 |
2013年 | 1360篇 |
2012年 | 296篇 |
2011年 | 217篇 |
2010年 | 175篇 |
2009年 | 158篇 |
2008年 | 193篇 |
2007年 | 182篇 |
2006年 | 139篇 |
2005年 | 199篇 |
2004年 | 174篇 |
2003年 | 214篇 |
2002年 | 231篇 |
2001年 | 217篇 |
2000年 | 192篇 |
1999年 | 185篇 |
1998年 | 144篇 |
1997年 | 113篇 |
1996年 | 127篇 |
1995年 | 105篇 |
1994年 | 98篇 |
1993年 | 105篇 |
1992年 | 126篇 |
1991年 | 116篇 |
1990年 | 112篇 |
1989年 | 103篇 |
1988年 | 110篇 |
1987年 | 110篇 |
1986年 | 103篇 |
1985年 | 122篇 |
1984年 | 98篇 |
1983年 | 105篇 |
1982年 | 75篇 |
1981年 | 74篇 |
1980年 | 70篇 |
1979年 | 76篇 |
1978年 | 78篇 |
1977年 | 54篇 |
1976年 | 45篇 |
1975年 | 59篇 |
1974年 | 49篇 |
1973年 | 41篇 |
1972年 | 39篇 |
排序方式: 共有8082条查询结果,搜索用时 15 毫秒
271.
Hans-Gerd Ridder Erk P. Piening Alina McCandless Baluch 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2012,23(3):605-635
Nonprofit organizations (NPOs) are facing increasing demands to become more efficient and effective, especially given increasing financial cutbacks, the rising demand for services and the push toward performance-related management. Human resource management (HRM) is claimed to play an important role in coping with these challenges. Yet, within the field of nonprofit management, little is known about the configuration of HR architectures in NPOs, let alone their impact on performance. To bridge this gap, we conduct an exploratory multiple case study in ten health and social services NPOs. The case study data indicates a shift toward a dominant strategic orientation in the configuration of HRM. Our article makes a central contribution by uncovering a third way in which NPOs seek a specific configuration of HRM to confront the challenges they face in their internal and external environments. 相似文献
272.
Kayla de la Haye Harold D. Green Jr. David P. Kennedy Annie Zhou Daniela Golinelli Suzanne L. Wenzel Joan S. Tucker 《Journal of research on adolescence》2012,22(4):604-616
Homeless youth lack the traditional support networks of their housed peers, which increases their risk for poor health outcomes. Using a multilevel dyadic analytic approach, this study identified characteristics of social contacts, relationships, and social networks associated with the provision of tangible and emotional support to homeless youth (N = 419, M age = 20.09, SD = 2.80). Support providers were likely to be family members, sex partners, or non–street‐based contacts. The provision of support was also associated with contacts' employment and homelessness status, frequency of contact, shared risk behaviors, and the number of network members that were homeless and employed. The results provide insights into how homeless youth could be assisted to develop more supportive social networks. 相似文献
273.
Jennifer E. Mosley Matthew P. Maronick Hagai Katz 《Nonprofit management & leadership》2012,22(3):281-303
The way that nonprofits respond to funding uncertainty is crucial to their ability to meet goals and position themselves for future success. This article investigates how structural, managerial, and financial characteristics affect the adaptive tactics used by human service nonprofits during times of financial stress. These tactics include adding new programs, reducing programs or staff, expanding or starting joint programs, pursuing earned income, and expanding advocacy involvement. Using longitudinal data on human service nonprofits collected on either side of the 2002–2003 economic downtown, we find that larger size provides organizations with a unique ability to choose among different adaptive tactics, as larger size was significantly predictive of adding new programs, reducing programs, expanding advocacy, and pursuing earned income. Strategic planning was positively associated with innovative tactics such as starting joint programs or pursuing earned income. Financial stress or declines in an organization's major funding source led to cutbacks, as expected, but managers who foresaw these challenges were able to respond proactively by adding programs or starting joint programs. However, managers with more training did not respond much differently than did other managers, and organizational age and use of performance management tools had no effect in guiding organizational responses to financial uncertainty. 相似文献
274.
The problems related to the means of transport in urban Brazilians have been getting worse over the years. The increase of the fleet, to the detriment of the adequacy and extent of the road network of cities contributes to this fact. This paper presents a profile of users of cycling in the city of Juiz de Fora, and thus contributes to the study of sustainable urban mobility, providing researchers with information that can guide the search for the encouragement of the use of means of transport to meet environmental needs urban centers that contributes to social equity. 相似文献
275.
276.
In some occupations pushing forces are frequent when performed on horizontal ground and are standardized (ISO 2002). In special cases employees are obliged to grow container on slopes and the strains are poorly investigated. The objective of this work is to measure forces required to push garbage container on horizontal and inclined at 0, 4, 11 and 16 % grounds. Sudden and significant increases in heart rate reflect the possible risk of heart overload in long displacements. This study proposes realistic limits and provides a simple and protective tool for a group of employees without distinction of age or gender. These limits can even be reduced to a quasi-linear model where push 200 kg is the maximum for 0% slope and 60 kg for 10% slope. 相似文献
277.
The aim is to identify ergonomic intervention methods used for including people with disabilities (PD) in the Brazilian labor market, with emphasis on discussion of methods to analyze the fit between the worker and the workplace. Methods to evaluate the fit of the worker to the workplace identify the capabilities and limitations of PDs and the demands of work, combining these data, and comparing them, in order to obtain a detailed analysis of the fit were drawn from national and international publications. These show that the use of specific methods for PDs and others focused on the general population. Mutatis mutandis, there is a need for complementary tools to address this segment. Thus, for the Brazilian scenario, it is essential to develop specific methodological tools to assess the capabilities of a PD so that they may better interact with their job. 相似文献
278.
Sharan D Ajeesh PS Rameshkumar R Mathankumar M Paulina RJ Manjula M 《Work (Reading, Mass.)》2012,41(Z1):3612-3615
Virtual reality is the use of interactive replication created with computer hardware and software to impart users with opportunities to engage in environments that appear to feel similar to real world objects and events. The commonest rehabilitation program of cerebral palsy children involves stretching, strengthening, mobilization and various other activities, whereas the use of virtual reality based training (VRBT) for rehabilitation of cerebral palsy is not common. To understand the effect of VRBT a study was formulated. Twenty nine subjects participated (study group--14 and control group--15). Outcome measures were MACS, PBS, level of participation, motivation, cooperation and satisfaction of the child. Results revealed that balance and manual ability were significantly improved in both the groups (Balance: study: t-2.28, p<0.05; control: t-3.5, p<0.01; Manual ability: study: t-5.58, p<0.001; control: t-7.06, p<0.001). PBS had significantly greater improvement in the study group (t-t-2.02, p<0.05). Level of participation, motivation, cooperation and satisfaction of the child were also reported to be significantly higher among the study group as compared with control group. To the author's best knowledge, this is the first study on using the VR-based therapy for the postoperative rehabilitation of children with CP which need further elaboration with larger sample size. 相似文献
279.
This research was conducted with slaughterhouse female workers in the municipality of S?o Miguel do Igua?u, state of Parana, Brazil. The sample was composed of 103 women aged 25 to 40 ( 7.57 years, and the study aimed to verify the nerve conduction of the median nerve. An esthesiometer consisting of a Semmes-Weinstein monofilaments was used to measure the hand skin sensitivity in the region of the median nerve and a Jamar? hand dynamometer, which was used to determine the handgrip strength. About 81% of individuals had normal sensitivity with 0.05 g and average levels of handgrip strength in dominant hand (DH) of 35.30 kgf (( 3.10) and in the non-dominant hand (NDH) of 28.30 ( 3.09 kgf. 14% of individuals had reduced sensitivity, with values equivalent to 0.2 g and 2.0 g (blue and violet) and levels of handgrip strength in the DH equal to 28.10 kgf (( 2.90) and in the NDH of 26.40 kgf (( 3.28). 5% of individuals showed bilateral sensitivity deficit (4.0 g) and levels of handgrip strength in the DH of 16.10 kgf (( 2.10) and in the NDH of 18.20 kgf (( 3.28), resulting in a strong correlation between handgrip strength and sensitivity of the median nerve (r = 0.786) between variables dominant hand (DH) and (r = 0.626) for the non-dominant hand (NDH). It could be concluded that assessing the nerve conduction of the median nerve by hand esthesiometry can be an important tool in preventing the Carpal Tunnel Syndrome. 相似文献
280.
The proponents of lean production have pointed to the positive effects of the work organization on employees in terms of autonomy, enhanced skills and empowerment mainly by their participation into the continuous improvement of work process. But studies that have examined this issue suggest that the increase in autonomy is not sufficient to compensate for increases work intensity. Participatory design has grown extensively in manufacturing since the 1980's under the impulsion of the Scandinavian socio-technical system approach and it's central in the model of lean production performance. Its main objectives are to improve quality, increase productivity and safety through employee's participation to the reduction of non-value added activities, such as defined by lean production. In the line of the studies on participatory design and continuous improvement the present study examines the functioning of work groups, based on the kaizen model, the aim of which was to improve the proportion of "value-added activities" and working conditions, essentially physical constraints. The main results are consistent with the literature and show that accelerated forms of re-conception activities give employees limited room for maneuver to elaborate solutions based on the analysis of the real activity. This study is part of a broader initiative that goes in the direction of continuous improvement of the design process itself so that it integrates the real constraints of work and propose changes bases on work as it actually takes place, beyond pre-established performance goals bases on the reduction of "non added value activities". 相似文献