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   151篇
  免费   8篇
  国内免费   1篇
  160篇
  2024年   1篇
  2023年   1篇
  2022年   5篇
  2021年   1篇
  2020年   3篇
  2019年   12篇
  2018年   7篇
  2017年   2篇
  2016年   11篇
  2015年   3篇
  2014年   6篇
  2013年   30篇
  2012年   4篇
  2011年   5篇
  2010年   5篇
  2009年   4篇
  2008年   5篇
  2007年   6篇
  2006年   9篇
  2005年   6篇
  2004年   7篇
  2003年   2篇
  2002年   4篇
  2001年   7篇
  2000年   4篇
  1998年   3篇
  1997年   1篇
  1996年   2篇
  1995年   1篇
  1994年   2篇
  1991年   1篇
排序方式: 共有160条查询结果,搜索用时 15 毫秒
41.
This paper asks whether discourse analytic approaches in social psychology have yet produced methodologies adequate to the investigation of institutional ‘gaze’. Institutional language has been explored to the extent that state agencies construct members of the public by speaking about them in particular ways. This has often provided insight into the co-existence and competition of incommensurable discourses. However, studies of representation in the sense of speaking for have been notably absent from social psychology. It is argued that this aspect of discourse is a vital component in the study of contemporary governmental multi-agency strategy in the area of child protection, where recent legislation and policy aims at the coordination of incommensurable discourses. A methodology for studying this strategy is outlined through an account of the actor network approach in science studies, accounts of the State under the post-modern condition, and analyses of sections of interviews with social workers.  相似文献   
42.
《Médecine & Droit》2023,2023(179):21-26
Medical research collects a huge number of medical data sheltered in Data Centers. An European regulation rule (GDRP) or General Data Protection Regulation aims to give an ethic frame to protect personal data and delegate responsability to citizens.  相似文献   
43.
Guns figure prominently in American culture. There is, however, considerable variability in attitudes toward guns. The beliefs and feelings that comprise attitudes toward guns may well be important moderators of numerous social behaviors. For this reason, a three-dimensional attitudes scale was constructed. The first factor consists of an abstract set of beliefs concerning the right of the American public to own or not own guns. The second and third factors tap more concrete beliefs about the consequences of gun ownership. Specifically, the second factor assesses the degree to which people believe gun ownership affords protection against crime. The third factor measures the degree to which people believe guns stimulate crime. Discriminant validity of the subscales is shown by the pattern of correlations obtained with the three dimensions and various other social and personality measures. Regression analyses indicate that the subscales are uniquely predicted by different social variables. Discussion centers on the usefulness of such a measure for future research on aggression, social policy, and attitude change.  相似文献   
44.
Aggression among female rats is almost entirely confined to the period of late pregnancy and lactation. Behaviorally it is similar to the aggression of males including piloerection and lateral attacks, but it differs in its function. Unlike male aggression which serves to establish a social hierarchy and a territory, i. e., is competitive, maternal aggression is protective, i. e., it serves to prevent predation of the mother's offspring. In this respect it is closely related temporally and causally to maternal care; if the offspring are removed maternal aggression wanes almost immediately–its function no longer exists! Studies on aggression by mothers, among rats, from the author's laboratory are reviewed and comparisons made with maternal care. As noted, maternal aggression and maternal care are closely related during the cycle of maternal behavior and they share a similar hormonal basis and possibly the effect of uterine stimulation, but maternal care requires prolactin and the decline of progesterone while maternal aggression appears independent of pituitary hormones and does not require a decline in progesterone. Maternal aggression like maternal care appears to be organized into a hormonal phase, during pregnancy, parturition, and for about a week postpartum and a nonhormonal phase thereafter. Bilateral radiofrequency lesions of the lateral midbrain peripeduncular nucleus (PPN) produce deficits in maternal aggression if made on lactation day 7 (L7), but not earlier, without producing significant deficits in maternal behavior. Experiments showed that the PPN does not mediate hormonally stimulated maternal aggression; it appears to mediate only nonhormonally stimulated maternal aggression. Studies on the role of pregnancy hormones on long-term retention of maternal aggression and the role of olfaction in maternal aggression are also reviewed. © 1994 Wiley-Liss, Inc.  相似文献   
45.
The following statement is the formal opinion by the Swedish National Council on Medical Ethics concerning the implementation of Directive 98/44/EC of the European Parliament concerning legal protection of biotechnical inventions, and the implications and implementation of this Directive in Sweden.  相似文献   
46.
试论中国对生物技术的专利保护   总被引:4,自引:0,他引:4  
人体基因是否属于科学发现、关于运动和植物品种的概念、关于基因治疗方法的专利保护、关于伦理道德标准、关于微生物菌种的保藏和发放、关于实用性和专利的授权范围以及关于遗传资源的保护等生物技术领导专利保护所面临的挑战,分析了国内外现有的观点和作法,并提出了笔者的粗浅看法,另外,还对如何解决基因资源的保护问题、生物技术领域是否需要专利保护和怎样防止生物技术的滥用等问题,介绍了自己的体会和建议。  相似文献   
47.
This paper proposes common mechanisms to explain the effects of adversities and of resources that promote resilience. Adversities threaten the satisfaction of basic human needs and the acquisitions of competencies to carry out valued social roles. Adversities can also be characterized in terms of their ecological properties of occurrence in time, and place. Resilience resources at the individual, microsystem and macro levels reduce the negative effects of adversities through their effects on satisfaction of basic human needs and their effects on the occurrence of adversities. The effects of resilience resources are described as preventive, protective and promotive. Implications are presented for the development of interventions to promote resilience.  相似文献   
48.
For several decades, Ronald Dworkinhas been one of the most prominent voicesdefending the legality and justifiability ofrace-conscious programs aimed at undoing thecontinuing effects of prejudice. Writingwithin the framework of a liberal legalphilosophy, he has formulated powerfularguments against the view that color-blindpolicies are the only defensible ones. Nonetheless, I argue that a more completeliberal defense of race-conscious policieswould need to develop and modify Dworkin's lineof argument. Such a defense would go beyondhis policy-based arguments and incorporatearguments of principle. Race-conscious policiesdo not only promote the general good; they arealso required in order to help realize theconstitutional right of equal citizenship.  相似文献   
49.
在生物心理社会医学模式下,以循证医学为基础的共享型临床决策成为主导.整形外科疾病有着诊断容易、治疗方法多样、效果不一、患者年龄小、心理脆弱、大众认知有一定误区等特点,更需要在情感和实践上体现对患者的理解和尊重,真正实现医生患者共同参与的共事型临床决策.  相似文献   
50.
Missing values are a practical issue in the analysis of longitudinal data. Multiple imputation (MI) is a well‐known likelihood‐based method that has optimal properties in terms of efficiency and consistency if the imputation model is correctly specified. Doubly robust (DR) weighing‐based methods protect against misspecification bias if one of the models, but not necessarily both, for the data or the mechanism leading to missing data is correct. We propose a new imputation method that captures the simplicity of MI and protection from the DR method. This method integrates MI and DR to protect against misspecification of the imputation model under a missing at random assumption. Our method avoids analytical complications of missing data particularly in multivariate settings, and is easy to implement in standard statistical packages. Moreover, the proposed method works very well with an intermittent pattern of missingness when other DR methods can not be used. Simulation experiments show that the proposed approach achieves improved performance when one of the models is correct. The method is applied to data from the fireworks disaster study, a randomized clinical trial comparing therapies in disaster‐exposed children. We conclude that the new method increases the robustness of imputations.  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