全文获取类型
收费全文 | 1143篇 |
免费 | 36篇 |
专业分类
管理学 | 256篇 |
民族学 | 11篇 |
人口学 | 138篇 |
丛书文集 | 5篇 |
理论方法论 | 116篇 |
综合类 | 15篇 |
社会学 | 508篇 |
统计学 | 130篇 |
出版年
2023年 | 15篇 |
2022年 | 9篇 |
2021年 | 13篇 |
2020年 | 43篇 |
2019年 | 38篇 |
2018年 | 35篇 |
2017年 | 62篇 |
2016年 | 47篇 |
2015年 | 37篇 |
2014年 | 59篇 |
2013年 | 182篇 |
2012年 | 55篇 |
2011年 | 46篇 |
2010年 | 45篇 |
2009年 | 42篇 |
2008年 | 38篇 |
2007年 | 46篇 |
2006年 | 30篇 |
2005年 | 28篇 |
2004年 | 23篇 |
2003年 | 23篇 |
2002年 | 30篇 |
2001年 | 25篇 |
2000年 | 13篇 |
1999年 | 17篇 |
1998年 | 16篇 |
1997年 | 7篇 |
1996年 | 15篇 |
1995年 | 14篇 |
1994年 | 7篇 |
1993年 | 10篇 |
1992年 | 11篇 |
1991年 | 7篇 |
1990年 | 5篇 |
1989年 | 5篇 |
1988年 | 6篇 |
1987年 | 5篇 |
1986年 | 8篇 |
1985年 | 3篇 |
1984年 | 8篇 |
1983年 | 11篇 |
1982年 | 8篇 |
1981年 | 5篇 |
1980年 | 5篇 |
1979年 | 3篇 |
1978年 | 3篇 |
1977年 | 3篇 |
1976年 | 2篇 |
1974年 | 3篇 |
1971年 | 4篇 |
排序方式: 共有1179条查询结果,搜索用时 15 毫秒
981.
The demand by stakeholders for information about companies’ social and environmental performance has led to sustainability reporting becoming essential. The Global Reporting Initiative (GRI) guidelines are the international reporting standard whereas the Johannesburg Securities Exchange Socially Responsible Investment (JSE SRI) Index guidelines are used in South Africa. Although South Africa is regarded as one of the leaders in sustainability reporting in the world, the JSE SRI Index is still a relatively new standard and its efficiency will only be proved over time. The research on which this paper is based, determined whether reporting patterns exist across specific market sectors of the sustainability reports of companies listed on the JSE in order to establish if the JSE SRI Index guidelines on reporting are efficient. Results indicated that all the selected market sectors reported on the environment, society and governance (ESG) categories as per requirements of the JSE SRI Index. The mining and materials sector reported more in the environment and the society categories than the other sectors, while in the governance category less reporting on indirect impacts by all the sectors was noted. The implication of this is that in general, companies find the JSE SRI Index guidelines on reporting easy to implement. However, less reporting of companies’ indirect impacts on their operating environments could mean that there is still a lack of completeness and transparency from the companies’ reports, which could be as a result of a lack of firmer guidelines by the JSE SRI Index guidelines on reporting of such issues. 相似文献
982.
Suzanne Janssen Carlien K.A. Van DalfsenJoris J. Van Hoof Mark Van Vuuren 《Public Relations Review》2012
Writing corporate stories to articulate identity is challenging because one must balance between the recognizable similarities with other companies (e.g., core activities, type of industry) and the company's own uniqueness. In the present study, we propose a conceptualization of corporate stories in terms of similarity and uniqueness, and present a scheme of six main categories of textual characteristics: general, style, structure, content, genre, and layout. The scheme is illustrated in a content analysis of 45 Dutch consumer-focused corporate stories. The results indicate that, contrary to the literature and guidelines on corporate stories, similarities in textual characteristics with other corporate stories are as typical for a corporate story as its uniqueness. Theoretical and managerial implications are discussed. 相似文献
983.
12-hour shifts are quickly spreading in Europe. From our multivariate analysis concerning 25,924 European nurses, including twenty explanatory variables simultaneously, we found that work schedule itself is not a major determinant factor. Nurses aim to choose or accept night shifts or 12-hour shift in order to reduce their work/home conflicts, however, at the expense of the patient's safety, as well as their own health and safety. Therefore, it is important to develop measures, such as extended child care, association of nurses to the elaboration of their rota, 9- or 10-hour shifts in the afternoon, allowing naps during night shifts, and reduction of changing shifts with short notice. Work schedules must be organized in order to allow time for shift handover, social support and team building. 相似文献
984.
Faber G Visser S van der Molen HF Kuijer PP Hoozemans MJ Van Dieën JH Frings-Dresen MH 《Work (Reading, Mass.)》2012,41(Z1):4171-4173
Ironworkers frequently perform heavy lifting tasks in teams of two or four workers. Team lifting could potentially lead to a higher variation in peak lumbar compression forces than lifts performed by one worker, resulting in higher maximal peak lumbar compression forces. This study compared single-worker lifts (25-kg, iron bar) to two-worker lifts (50-kg, two iron bars) and to four-worker lifts (100-kg, iron lattice). Inverse dynamics was used to calculate peak lumbar compression forces. To assess the variability in peak lumbar loading, all three lifting tasks were performed six times. Results showed that the variability in peak lumbar loading was somewhat higher in the team lifts compared to the single-worker lifts. However, despite this increased variability, team lifts did not result in larger maximum peak lumbar compression forces. Therefore, it was concluded that, from a biomechanical point of view, team lifting does not result in an additional risk for low back complaints in ironworkers. 相似文献
985.
Verhaert V Druyts H Van Deun D De Wilde T Van Brussel K Haex B Sloten JV 《Work (Reading, Mass.)》2012,41(Z1):2268-2273
The sleep system (i.e. the combination of mattress and bed base) is an important factor of the sleep environment since it allows physical recuperation during sleep by providing proper body support. However, various factors influence the interaction between the human body and the sleep system. Contributing factors include body dimensions, distribution of body weight and stiffness of the sleep system across the mattress surface. During the past decade, the rise of several new bedding technologies has made it increasingly difficult for the consumer to select a proper sleep system. Therefore, this study presents a method to model human-bed interaction in order to objectively predict the ideal sleep system for a particular individual. The proposed method combines a personalized anthropometric model with standardized load-deflection characteristics of mattress and bed base. Results for lateral sleep positions show a root mean square deviation of 11.9 ± 6.1 mm between modeled spine shapes and validation shapes, derived from 3D surface scans of the back surface. The method showed to be a reliable tool to individually identify the sleep system providing superior support from a variety of possible mattress-bed base combinations. 相似文献
986.
987.
This paper provides a new examination of the gender pay gap for Germany based on a family of distribution-sensitive indicators. Wage distributions for men and women do not only differ by a fixed constant; differences are more complex. We show that focusing on the bottom of the wage distribution reveals a larger gender gap. Our distribution-sensitive analysis can also be used to study whether the statistical disadvantage of women in average pay might be ‘offset’ by lower inequality. Over a broad range of plausible preferences over inequality, we show however that ‘inequality-adjusted’ estimates of the gap can be up to three times higher than standard inequality-neutral measures in Eastern Germany and up to fifty percent higher in Western Germany. Using preference parameters elicited from a hypothetical risky investment question in our sample, inequality-adjusted gender gap measures turn out to be close to those upper bounds. 相似文献
988.
989.
Sesen Negash Nicole Van Ness Sheppard Nathaniel M. Lambert Frank D. Fincham 《Journal of sex research》2016,53(6):689-700
Internet pornography is a multi-billion-dollar industry that has grown increasingly accessible. Delay discounting involves devaluing larger, later rewards in favor of smaller, more immediate rewards. The constant novelty and primacy of sexual stimuli as particularly strong natural rewards make Internet pornography a unique activator of the brain's reward system, thereby having implications for decision-making processes. Based on theoretical studies of evolutionary psychology and neuroeconomics, two studies tested the hypothesis that consuming Internet pornography would relate to higher rates of delay discounting. Study 1 used a longitudinal design. Participants completed a pornography use questionnaire and a delay discounting task at Time 1 and then again four weeks later. Participants reporting higher initial pornography use demonstrated a higher delay discounting rate at Time 2, controlling for initial delay discounting. Study 2 tested for causality with an experimental design. Participants were randomly assigned to abstain from either their favorite food or pornography for three weeks. Participants who abstained from pornography use demonstrated lower delay discounting than participants who abstained from their favorite food. The finding suggests that Internet pornography is a sexual reward that contributes to delay discounting differently than other natural rewards. Theoretical and clinical implications of these studies are highlighted. 相似文献
990.
Adaptation and Evaluation of a Nonviolent Resistance Intervention for Foster Parents: A Progress Report 下载免费PDF全文
Frank Van Holen Johan Vanderfaeillie Haim Omer 《Journal of marital and family therapy》2016,42(2):256-271
Foster care faces serious challenges, such as behavioral problems in foster children and parental stress and ineffective parenting behavior in foster parents. The results of a pilot study that evaluated a training program for foster parents based on nonviolent resistance are described. In a pretest–posttest design, data were collected from 25 families. Significant reductions in externalizing, internalizing, and total problem behavior in the foster children and in parenting stress were found. Using a reliable change index, significant improvements in externalizing, internalizing, and total problem behavior were found in, respectively, 72, 44, and 80% of the cases. Most improvements proved to be clinically relevant. Effect sizes ranged from medium to large for problem behavior, and from small to medium for parenting stress. 相似文献