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   87篇
  免费   6篇
管理学   32篇
民族学   2篇
人口学   2篇
理论方法论   6篇
综合类   5篇
社会学   35篇
统计学   11篇
  2023年   1篇
  2022年   1篇
  2021年   1篇
  2019年   2篇
  2018年   5篇
  2017年   6篇
  2016年   4篇
  2015年   4篇
  2014年   3篇
  2013年   11篇
  2012年   3篇
  2011年   4篇
  2010年   3篇
  2009年   2篇
  2008年   3篇
  2007年   5篇
  2006年   2篇
  2005年   3篇
  2004年   5篇
  2003年   4篇
  2002年   2篇
  2000年   3篇
  1999年   4篇
  1998年   1篇
  1993年   1篇
  1992年   1篇
  1991年   1篇
  1990年   2篇
  1989年   1篇
  1988年   2篇
  1984年   1篇
  1981年   1篇
  1964年   1篇
排序方式: 共有93条查询结果,搜索用时 93 毫秒
71.
Using a quasi-experimental design, a sample of female welfare clients (N = 91) was followed over 32 months to compare two competing models used to describe welfare dependency. The individual deficit model suggested that clients would not engage in work activities on their own initiative and that legislative sanctions were required to force clients into employment. The ecological/community model suggested that community economic distress, rather than lack of skills or motivation, prevented clients from becoming gainfully employed. Results showed that while both models explained the rate at which clients left the welfare system, the community that one lived in was a stronger predictor of welfare exits than government programs mandating individual effort. Results revealed that many clients were employed regardless of whether or not it was mandated. Furthermore, clients who resided in lower income communities and were required to work to keep receiving welfare benefits under the new legislation, spent an average of nearly twice as much time in the welfare system (22.75 months) as individuals who faced neither stress (11.5 months). The findings highlight the need to incorporate community economic development strategies in the overall program to decrease welfare dependency, rather than focusing solely on individual remediation.  相似文献   
72.
We provide evidence that long‐term relationships between trading parties emerge endogenously in the absence of third party enforcement of contracts and are associated with a fundamental change in the nature of market interactions. Without third party enforcement, the vast majority of trades are initiated with private offers and the parties share the gains from trade equally. Low effort or bad quality is penalized by the termination of the relationship, wielding a powerful effect on contract enforcement. Successful long‐term relations exhibit generous rent sharing and high effort (quality) from the very beginning of the relationship. In the absence of third‐party enforcement, markets resemble a collection of bilateral trading islands rather than a competitive market. If contracts are third party enforceable, rent sharing and long‐term relations are absent and the vast majority of trades are initiated with public offers. Most trades take place in one‐shot transactions and the contracting parties are indifferent with regard to the identity of their trading partner.  相似文献   
73.
Infant babbling has an important social function in promoting early language development by attracting caregiver attention and prompting parents' contingent, simplified speech, which is more learnable for infants. Here, we demonstrate that prelinguistic infant vocalizations also create learning opportunities for infants in childcare settings by eliciting simplified and more learnable linguistic information during teacher-infant interactions. We compared the rates and complexity of contingent and non-contingent verbal interactions of 34 childcare teachers during a one-on-one free play interaction with a familiar infant under their care (M = 12.6 months old). As compared to non-contingent utterances, teachers' contingent utterances included fewer unique words, a higher proportion of single-word responses, and a shorter mean length of utterances. Teachers did not change their response length based on infants' syllable type and were equally likely to respond to vowels and consonant-vowel vocalizations. Sources of individual differences in the simplification effect related to infant behaviors and teacher characteristics are discussed. The results parallel previous findings demonstrating the simplification effect in parent-infant interactions. That teachers also show this simplification effect when responding to infant vocalizations suggests the power of infant prelinguistic vocalizations for organizing caregiver attention in various settings to elicit simplified, learnable language.  相似文献   
74.
75.
76.
Resilience, the ability to adapt to adversity and endure job demands, is growing in prominence in the management literature with limited regard to occupational influences. Often examined at the individual level with fragmented conceptualizations, it can be a trait, capacity, or a process. We conduct a review of (1) management studies and (2) content from O*NET for 11 occupations and disciplinary studies taking a grounded approach to synthesize themes to develop an integrated occupational resilience framework. Our review suggests that resilience is individually and occupationally determined as part of a multi-level system. Our review shows that specific occupational tasks and contextual demands imply different connotations of what exactly “resilience” means and how contexts may constrain or foster resiliency. Occupational resilience involves (1) multiple conceptual strands related to accessing resources (trait, capacity, and processes); (2) positive and negative triggers that are occupationally distinguished; (3) different resilience types (cognitive, emotional, and physical) that vary in need, breadth, and importance across occupations; (4) a dynamic phenomenon that occurs within and across career stages; (5) both content-general, and job-specific occupational tensions; and (6) work and nonwork domains. Multi-level occupational-specific and comparative studies, adaptive performance and risk taking across the work–nonwork interface are highlighted areas for future research.  相似文献   
77.
Mixed treatment comparison (MTC) models rely on estimates of relative effectiveness from randomized clinical trials so as to respect randomization across treatment arms. This approach could potentially be simplified by an alternative parameterization of the way effectiveness is modeled. We introduce a treatment‐based parameterization of the MTC model that estimates outcomes on both the study and treatment levels. We compare the proposed model to the commonly used MTC models using a simulation study as well as three randomized clinical trial datasets from published systematic reviews comparing (i) treatments on bleeding after cirrhosis, (ii) the impact of antihypertensive drugs in diabetes mellitus, and (iii) smoking cessation strategies. The simulation results suggest similar or sometimes better performance of the treatment‐based MTC model. Moreover, from the real data analyses, little differences were observed on the inference extracted from both models. Overall, our proposed MTC approach performed as good, or better, than the commonly applied indirect and MTC models and is simpler, fast, and easier to implement in standard statistical software. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
78.
Self-neglect is a complex and inadequately understood phenomenon that accounts for the majority of Adult Protective Services cases. This retrospective, record-based study of the characteristics of 210 older adults who were reported to Adult Protective Services and confirmed for self-neglect revealed that common health problems included nutritional frailty, arthritis, and incontinence. Comparisons based upon length of service showed differences in worker-rated social environment risk, client capacity, and activities of daily living performance. Comparisons of findings with those of other studies of self-neglect underscore the need for systematic research on this population.  相似文献   
79.
Employment contracts give a principal the authority to decide flexibly which task his agent should execute. However, there is a tradeoff, first pointed out by Simon (1951, Econometrica, 19, 293–302), between flexibility and employer moral hazard. An employment contract allows the principal to adjust the task quickly to the realization of the state of the world, but he may also abuse this flexibility to exploit the agent. We capture this tradeoff in an experimental design and show that principals exhibit a strong preference for the employment contract. However, selfish principals exploit agents in one‐shot interactions, inducing the latter to resist entering into employment contracts. This resistance to employment contracts vanishes if fairness preferences in combination with reputation opportunities keep principals from abusing their power, leading to the widespread, endogenous formation of efficient long‐run employment relations. Our results inform the theory of the firm by showing how behavioral forces shape an important transaction cost of integration—the abuse of authority—and by providing an empirical basis for assessing differences between the Marxian and the Coasian view of the firm, as well as Alchian and Demsetz's (1972, American Economic Review, 62, 777–795) critique of the Coasian approach.  相似文献   
80.
In no studies have research participants been asked how they feel about answering questions concerning childhood sexual abuse. We have performed searches from two different search engines again and have found nothing published which specifically addresses this question in the way we have. A questionnaire about childhood sexual abuse was administered to a sample of Mexican-American female college students. Over 32% reported positive histories of childhood sexual abuse before age 18. These subjects were more uncomfortable (37%) than those who did not experience childhood sexual abuse when answering questions about childhood sexual abuse (12%; p < 0.00001), but they were not more uncomfortable in answering questions about alcohol or drug use. Women who were sexually abused in childhood also readily disclosed childhood sexual abuse histories despite revealing discomfort about being asked questions concerning childhood sexual abuse. Our findings support concerns by researchers that childhood sexual abuse is neglected because researchers have an unwarranted perception about how fragile sexually abused subjects are as subjects.  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