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   500篇
  免费   23篇
  国内免费   4篇
管理学   44篇
民族学   1篇
人口学   4篇
丛书文集   34篇
理论方法论   26篇
综合类   251篇
社会学   93篇
统计学   74篇
  2024年   1篇
  2023年   5篇
  2022年   4篇
  2021年   11篇
  2020年   12篇
  2019年   18篇
  2018年   9篇
  2017年   13篇
  2016年   17篇
  2015年   24篇
  2014年   30篇
  2013年   63篇
  2012年   29篇
  2011年   31篇
  2010年   32篇
  2009年   21篇
  2008年   19篇
  2007年   17篇
  2006年   22篇
  2005年   19篇
  2004年   20篇
  2003年   15篇
  2002年   16篇
  2001年   20篇
  2000年   17篇
  1999年   10篇
  1998年   2篇
  1997年   10篇
  1996年   5篇
  1995年   6篇
  1993年   1篇
  1992年   2篇
  1991年   4篇
  1990年   1篇
  1987年   1篇
排序方式: 共有527条查询结果,搜索用时 15 毫秒
21.
《布鲁塞尔规则》2001年取代了《布鲁塞尔公约》,成为新的欧盟指令来规范相关的跨界国际私法的争议。欧盟委员会2004年针对适用《欧洲经济共同体条约》第81条的规定颁布了配套的指令TTBER和适用这个指令的指南。指令第3条规定了两个协议合作的企业市场份额门槛的认定标准,这个标准取代了过去的分类方法,在欧洲引起广泛的讨论。欧盟知识产权跨界禁令和竞争规则研究,突破了知识产权的地域性原则,完善了知识产权的竞争规则,并提供了相应的法律救济,有助于中国政府指导自己的企业与欧盟开展贸易。  相似文献   
22.
We explored the influences of women's social learning, marital resources and constraints, and exposure to norms about women's family roles on their views about wife hitting or beating among 5,450 participants in the 2005 Egypt Demographic and Health Survey. One half justified wife hitting or beating for some reason. Women from rural areas who were exposed to domestic violence more often justified such acts. Dependent wives whose husbands had more schooling, were blood relatives, and were coresident more often justified such acts. In settings where women tended to marry at older ages, women less often justified such acts. Women's resources and constraints in marriage accounted for the largest share of the variability in their attitudes about domestic violence against women.  相似文献   
23.
Story stem measures are an increasingly popular method for assessing the attachment representations of young children, but little is known of their cross‐cultural applicability. This study aimed to characterise the attachment representations in 73 five‐ to eight‐year‐old children in urban Ghana, West Africa, using the Manchester Child Attachment Story Task (MCAST) to test its feasibility, psychometric characteristics and concurrent associations with caregiver‐ and teacher‐rated child behaviour, and to conduct a qualitative thematic analysis of methodological observations. Among the classifiable cases (92 percent), all attachment classifications were observed, yielding a higher rate of secure attachment than in European samples. Inter‐rater reliability, internal consistency, and internal structure were reasonable and largely similar to European studies, although one structural difference was the separation of ‘child assuagement of distress’ from other secure‐related items. MCAST narratives were associated with teacher‐ and caregiver‐rated hyperactivity, but internal consistency was low in most Strengths and Difficulties Questionnaire scales. Possible culturally‐sensitive explanations for our psychometric and qualitative findings are discussed. Overall, story stems are a promising tool for accessing attachment representations in non‐Western samples, although modifications are likely to improve cross‐cultural equivalence when applied to non‐Western cultures. Further investigation is needed to link MCAST outcomes to parenting and socio‐emotional development.  相似文献   
24.
This article reviews the recent history of kinship research, noting the relative neglect of the topic in recent decades. The lack of scholarly and empirical work on kinship has been hampered by both the absence of survey and qualitative research on contemporary kinship practices. The author focuses on what is known and not known about how individual put into practice kinship in the standard, nuclear form of the family. There is surprising in attention to the ceremonial family and, little is know about how families draw boundaries and construct kinship on ritual occasions in the literature. The author concludes by suggesting research strategies for examining both how kinship is constructed and practiced in the United States and in other advanced economies.  相似文献   
25.
The objective of meat inspection is to promote animal and public health by preventing, detecting, and controlling hazards originating from animals. With the improvements of sanitary level in pig herds, the hazards profile has shifted and the inspection procedures no longer target major foodborne pathogens (i.e., not risk based). Additionally, carcass manipulations performed when searching for macroscopic lesions can lead to cross‐contamination. We therefore developed a stochastic model to quantitatively describe cross‐contamination when consecutive carcasses are submitted to classic inspection procedures. The microbial hazard used to illustrate the model was Salmonella, the data set was obtained from Brazilian slaughterhouses, and some simplifying assumptions were made. The model predicted that due to cross‐contamination during inspection, the prevalence of contaminated carcass surfaces increased from 1.2% to 95.7%, whereas the mean contamination on contaminated surfaces decreased from 1 logCFU/cm² to ?0.87 logCFU/cm², and the standard deviations decreased from 0.65 to 0.19. These results are explained by the fact that, due to carcass manipulations with hands, knives, and hooks, including the cutting of contaminated lymph nodes, Salmonella is transferred to previously uncontaminated carcasses, but in small quantities. These small quantities can easily go undetected during sampling. Sensitivity analyses gave insight into the model performance and showed that the touching and cutting of lymph nodes during inspection can be an important source of carcass contamination. The model can serve as a tool to support discussions on the modernization of pig carcass inspection.  相似文献   
26.
We used an agent‐based modeling (ABM) framework and developed a mathematical model to explain the complex dynamics of microbial persistence and spread within a food facility and to aid risk managers in identifying effective mitigation options. The model explicitly considered personal hygiene practices by food handlers as well as their activities and simulated a spatially explicit dynamic system representing complex interaction patterns among food handlers, facility environment, and foods. To demonstrate the utility of the model in a decision‐making context, we created a hypothetical case study and used it to compare different risk mitigation strategies for reducing contamination and spread of Listeria monocytogenes in a food facility. Model results indicated that areas with no direct contact with foods (e.g., loading dock and restroom) can serve as contamination niches and recontaminate areas that have direct contact with food products. Furthermore, food handlers’ behaviors, including, for example, hygiene and sanitation practices, can impact the persistence of microbial contamination in the facility environment and the spread of contamination to prepared foods. Using this case study, we also demonstrated benefits of an ABM framework for addressing food safety in a complex system in which emergent system‐level responses are predicted using a bottom‐up approach that observes individual agents (e.g., food handlers) and their behaviors. Our model can be applied to a wide variety of pathogens, food commodities, and activity patterns to evaluate efficacy of food‐safety management practices and quantify contamination reductions associated with proposed mitigation strategies in food facilities.  相似文献   
27.
在《文艺心理阐释》一书中 ,鲁枢元先生试图沟通文学与心理学这两门学科的努力与比较文学范围内文学与心理学跨学科研究有着某种契合。将此书置于比较文学视野之下来观照 ,可发现它为文学与心理学跨学科研究做出了多方面的贡献 ,并为发展这一研究领域提供了多种有益的启示  相似文献   
28.
In this article, we develop regression models with cross‐classified responses. Conditional independence structures can be explored/exploited through the selective inclusion/exclusion of terms in a certain functional ANOVA decomposition, and the estimation is done nonparametrically via the penalized likelihood method. A cohort of computational and data analytical tools are presented, which include cross‐validation for smoothing parameter selection, Kullback–Leibler projection for model selection, and Bayesian confidence intervals for odds ratios. Random effects are introduced to model possible correlations such as those found in longitudinal and clustered data. Empirical performances of the methods are explored in simulation studies of limited scales, and a real data example is presented using some eyetracking data from linguistic studies. The techniques are implemented in a suite of R functions, whose usage is briefly described in the appendix. The Canadian Journal of Statistics 39: 591–609; 2011. © 2011 Statistical Society of Canada  相似文献   
29.
给出了3度平面图的两个存在性定理的简洁证明,以矩阵列举法迅速得到所有的异构类,并举例说明结论的意义.  相似文献   
30.
科学发展观是高校加强和改进思想政治教育工作的思想指针。高校思想政治教育必须在科学发展观的统筹下,全面贯彻落实科学发展观的精神实质和基本要求,认真探索高校思想政治教育的规律和实践路径,不断开创高校思想政治教育的新视野。  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