首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   117篇
  免费   11篇
管理学   23篇
人口学   11篇
理论方法论   17篇
综合类   1篇
社会学   54篇
统计学   22篇
  2023年   1篇
  2021年   4篇
  2020年   6篇
  2019年   8篇
  2018年   4篇
  2017年   12篇
  2016年   5篇
  2015年   5篇
  2014年   4篇
  2013年   15篇
  2012年   7篇
  2011年   3篇
  2010年   2篇
  2009年   3篇
  2008年   7篇
  2007年   7篇
  2006年   7篇
  2005年   4篇
  2004年   2篇
  2002年   3篇
  2001年   3篇
  2000年   4篇
  1999年   2篇
  1998年   2篇
  1997年   2篇
  1996年   2篇
  1989年   1篇
  1985年   1篇
  1980年   1篇
  1961年   1篇
排序方式: 共有128条查询结果,搜索用时 46 毫秒
31.
Abstract. This paper examines the earnings assimilation of immigrants in Sweden by applying a quantile regression approach on pooled data during the period 1990–99. Immigrants from Nordic and Western European countries have a smaller entry earnings disadvantage and slower rate of assimilation than other groups of immigrants. For some cohorts of immigrants from European countries the initial earnings disadvantage disappears after 15–20 years in Sweden, but as non‐European immigrants suffered from very large entry earnings disadvantages, their earnings will not catch up with the earnings of natives during their first 20 years in Sweden. More recent non‐European immigrant cohorts had a larger entry earnings disadvantage than previous ones. The immigration policy, discrimination, and the economic conditions may have contributed to the decline in the earnings assimilation of non‐European immigrants.  相似文献   
32.
This paper is about a specific aspect of the present restructuring of space: the cumulative, but unintended, effects on the public urban order, by a growing, and more intense, deployment of border controls. Border controls are recognized to operate both in public space, and at the entrances to those organized activities that directly face public space. Their working is understood as actuarial practices. Two preventive impetuses are identified, one specific, police‐related, one general, related to the on‐going socio‐economic changes. To try to follow the aggregate effects of such a preventive spatial restructuring, an analytic thought experiment is made. Its focus is the public order in a square, or a segment of a street, located centrally in a relatively large Western European city and the effects of the following variations. To begin with, the targets of border controls: the volume and the composition of, first, the passers by, and second, the direct visitors of this public space, and third, different visitors to the organized activities adjoining this space. Then, of course, the variations in the deployment of border controls by both public and private police. Thus, it is possible to delineate how the preventive restructuring of space works upon the urban order. Perhaps surprisingly, there is a certain robustness in the urban order since many agents of the preventive restructuring do not work in concert.  相似文献   
33.
Population Research and Policy Review - It has been argued that a generous family policy aimed at a gender-equal division of childcare and economic responsibility will have a positive impact on...  相似文献   
34.
Mats Ekl  f  Marianne T  rner 《Work and stress》2005,19(4):360-369
Although occupational accidents are common in fishery, safety work is often not given priority by the fishermen. The aims of this study were to test a group-based intervention for increased activity in safety work through group discussion of accident/incident experience; to study occurred incidents/accidents and how such events were managed; and to study intervention effects on activity in safety work, risk acceptance and perceived manageability of risks. A sample of men from five crews (11 men) of Swedish fishermen participated. The study had a one group pre-test-post-test design for questionnaire data. The emphasis was on qualitative information collected during the intervention and interviews. The results indicated that accident causes could be appraised as being unmanageable even when technical solutions were possible. Psychological factors may cause incidents not to be documented or discussed. Incident experience seldom leads to preventive measures. Interaction between structural, social and psychological factors seemed to explain this. Questionnaires, observations and interview data suggested that some increase in safety work took place during the intervention. After the discussions the participants perceived risks to be less manageable. The study indicated that, although sensitive to dropout, participative safety interventions in fishery are feasible and may be effective. A longer or more intensive intervention may be necessary in order to progress from problem orientation to action orientation.  相似文献   
35.
36.
Abstract

The aim of this study was to evaluate whether psychological stress causes increased muscle activity, especially static muscle activity, in the trapezius muscles of the neck and shoulder. A pilot and a main study were carried out with 10 males and 20 females, respectively. The subjects performed a VDU data entry task under psychologically stressful and non-stressful conditions. Stress reactions were measured by different methods: heart rate and heart rate variability, hormonal excretion, and subjective ratings of mood and body symptoms. The stress condition caused an increase in heart rate. The low-frequency variability increased and the high-frequency variability decreased. Ratings of motivation and relaxation decreased, and subjects felt more activated. Pain and discomfort from the stomach increased. Adrenaline and noradrenaline in urine were unaffected. The majority of the subjects showed moderately increased static and median EMG levels during the stress condition. The interindividual variation in muscular reactions was large. Statistically significant increases were obtained for the myoelectric activity of the left (resting) trapezius muscle when pooling the two groups. It appears that the increase in muscle activity due to this type of mental stress is small, and factors other than ‘attention-related’ load may be more important. The results indicate that some individuals may be more prone to general muscle tension, making them more likely to develop symptoms and musculoskeletal pain.  相似文献   
37.
Research indicates that a number of psychosocial interventions are effective for reducing behavioural problems in youth. These interventions are now often included on best practice lists aiming to facilitate informed treatment choices among practitioners. However, analyses in neighbouring research areas have highlighted serious shortcomings in how primary studies are analysed and how studies are synthesised in research reviews. This study took a closer look at the evidence of efficacy for psychosocial interventions that aim to reduce behavioural problems in youth, as shown in systematic research reviews by the Cochrane and the Campbell Collaborations (n = 8). The findings suggest a bias towards overemphasising the efficacy of the interventions in several reviews, an over‐confidence in the validity of the findings in some reviews and, overall, a somewhat uncertain evidence base for the efficacy of the interventions. Systematic reviews are crucial for summarising research but more attention to methodological issues may be needed in this area.  相似文献   
38.
This study develops a multi‐level approach on frontline interactions in the public sector. Previous research suggests that detailed analyses of frontline interactions are essential to our understanding of how welfare services take shape when policies and rules are applied and negotiated in individual cases. The dynamics and performances of real‐time interactions have, however, rarely been analyzed as such. This study shows how the methods developed in the field of Conversation Analysis can contribute to this research. Our multi‐level approach integrates analyses of the policy‐ and institutional transformations that shape conditions for frontline interactions; and analyses of how policies and rules are evoked, negotiated and reshaped in the turn‐by‐turn organization and performances of interaction. The approach is applied on an analysis of how rules regarding financial aid are applied in an authority highly affected by changes in welfare policy towards standardization and detailed regulations. The empirical case is the Swedish Board for Study Support. The empirical study includes analyses of documents, interviews and analyses of taped telephone conversations. The study shows how institutional arrangements of standardization, detailed regulations, monitoring and depersonalization, structure the frontline work and shape narrow frames for officials' discretion in interactions with clients. The study also shows how rules are invoked and negotiated in recurrent practices in the interaction: in the careful design of decisions; in the investigations of alternatives and exceptions from the rules in order to find solutions to the client's problems. The analyses of concrete interactional practices clearly indicate that also a rule‐governed work dominated by task discretion involves recurrent negotiations, flexibility and local policy‐making.  相似文献   
39.
Research has shown that alignment between manufacturing strategy and decisions regarding automation are often of an ad hoc nature, i.e. the support for automation decisions is poor. Support tools to find an appropriate level of automation are thus needed in order to achieve more efficient and robust production systems. The methodology presented in this paper contains five sub-processes where the chosen level of automation is aligned with the manufacturing strategy. Together they form an automation strategy, which secures a desired direction of the firm and also supports robustness and reliability of the manufacturing system due to the holistic approach chosen.  相似文献   
40.
This paper explores materials planning procedures to ensure the materials’ availability during production transfers. The paper defines a production transfer as the preparation, physical transfer and start-up of relocated production. A structured procedure of materials planning during production transfer is developed based on theory, and then validated and refined based on the analysis of four case studies. The paper shows that there is a need for a structured procedure of materials planning during production transfers. It also explains the importance of activities that create prerequisites for the materials’ availability during production transfer, such as updating and adapting documentation, planning and control systems, and describes the activities that ensure the materials’ availability, such as preventive and corrective actions. A valid estimation of the time needed to reach a steady state and a combination of several preventive actions improves the ability to ensure that materials are available. The cases showed differences across company size, because large companies took more and farther-reaching preventive actions.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号