全文获取类型
收费全文 | 536篇 |
免费 | 32篇 |
出版年
2023年 | 4篇 |
2021年 | 10篇 |
2020年 | 11篇 |
2019年 | 14篇 |
2018年 | 16篇 |
2017年 | 15篇 |
2016年 | 23篇 |
2015年 | 13篇 |
2014年 | 19篇 |
2013年 | 63篇 |
2012年 | 23篇 |
2011年 | 27篇 |
2010年 | 19篇 |
2009年 | 20篇 |
2008年 | 24篇 |
2007年 | 25篇 |
2006年 | 32篇 |
2005年 | 18篇 |
2004年 | 21篇 |
2003年 | 15篇 |
2002年 | 17篇 |
2001年 | 9篇 |
2000年 | 5篇 |
1999年 | 9篇 |
1998年 | 9篇 |
1997年 | 11篇 |
1995年 | 6篇 |
1994年 | 6篇 |
1992年 | 8篇 |
1990年 | 2篇 |
1987年 | 4篇 |
1986年 | 4篇 |
1985年 | 2篇 |
1984年 | 6篇 |
1982年 | 3篇 |
1981年 | 4篇 |
1980年 | 3篇 |
1979年 | 4篇 |
1978年 | 6篇 |
1977年 | 4篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1974年 | 2篇 |
1972年 | 2篇 |
1971年 | 2篇 |
1970年 | 4篇 |
1966年 | 2篇 |
1963年 | 2篇 |
1962年 | 2篇 |
1961年 | 2篇 |
排序方式: 共有568条查询结果,搜索用时 15 毫秒
511.
Eduardo F. Carvalho-Netto Raquel C.R. Martinez Marcus Vinicius C. Baldo Newton Sabino Canteras 《Neurobiology of learning and memory》2010,93(4):479-486
Previous studies from our laboratory have documented that the medial hypothalamic defensive system is critically involved in processing actual and contextual predatory threats, and that the dorsal premammillary nucleus (PMd) represents the hypothalamic site most responsive to predatory threats. Anatomical findings suggest that the PMd is in a position to modulate memory processing through a projecting branch to specific thalamic nuclei, i.e., the nucleus reuniens (RE) and the ventral part of the anteromedial nucleus (AMv). In the present study, we investigated the role of these thalamic targets in both unconditioned (i.e., fear responses to predatory threat) and conditioned (i.e., contextual responses to predator-related cues) defensive behaviors. During cat exposure, all experimental groups exhibited intense defensive responses with the animals spending most of the time in the home cage displaying freezing behavior. However, during exposure to the environment previously associated with a cat, the animals with combined RE + AMv lesions, and to a lesser degree, animals with single AMv unilateral lesions, but not animals with single RE lesions, presented a reduction of contextual conditioned defensive responses. Overall, the present results provide clear evidence suggesting that the PMd’s main thalamic targets (i.e., the nucleus reuniens and the AMv) seem to be critically involved in the emotional memory processing related to predator cues. 相似文献
512.
Two studies examined the relative importance of good versus bad mentoring experiences in predicting subjective states associated with the mentoring relationship. Study 1 examined the protégé perspective and found general support for the proposition that, on average, bad is stronger than good in predicting protégé outcomes. Study 2 adopted the mentor perspective and found mixed support for the prediction that, on average, bad is stronger than good. The results are discussed in terms of advancing research and theory on the relational processes associated with mentoring in the workplace and the need to consider the relational context to more fully understand the relative predictive power of good and bad mentoring experiences. 相似文献
513.
West M 《The Journal of analytical psychology》2010,55(4):459-484
This paper explores five examples of envy, examining the similarities and differences between the clinical situations. The theory relating to envy is extensively reviewed and a critique of the Kleinian position is offered, suggesting that the aversion to separation and difference is not only prior to, but also has explanatory precedence over, the functioning of envy. Kleinian examples are explored in this light. The experience of separateness and difference is understood to lead to a number of outcomes: envy, admiration, competitiveness, a sense of low self-esteem and inadequacy, or a fear of being envied. It is argued that the individual's particular personality organization and their associated relational pattern will determine their experience of envy. Examples of schizoid, borderline, narcissistic and hysteric functioning in relation to envy are examined in some depth. The link between these phenomena and the death instinct is touched on. 相似文献
514.
Second‐order axiomatizations of certain important mathematical theories—such as arithmetic and real analysis—can be shown to be categorical. Categoricity implies semantic completeness, and semantic completeness in turn implies determinacy of truth‐value. Second‐order axiomatizations are thus appealing to realists as they sometimes seem to offer support for the realist thesis that mathematical statements have determinate truth‐values. The status of second‐order logic is a controversial issue, however. Worries about ontological commitment have been influential in the debate. Recently, Vann McGee has argued that one can get some of the technical advantages of second‐order axiomatizations—categoricity, in particular—while walking free of worries about ontological commitment. In so arguing he appeals to the notion of an open‐ended schema—a schema that holds no matter how the language of the relevant theory is extended. Contra McGee, we argue that second‐order quantification and open‐ended schemas are on a par when it comes to ontological commitment. 相似文献
515.
516.
517.
Climate change is undeniably a global problem, but the situation is especially dire for countries whose territory is comprised entirely or primarily of low‐lying land. While geoengineering might offer an opportunity to protect these states, international consensus on the particulars of any geoengineering proposal seems unlikely. To consider the moral complexities created by unilateral deployment of geoengineering technologies, we turn to a moral convention with a rich history of assessing interference in the sovereign affairs of foreign states: the just war tradition. We argue that the just war framework demonstrates that, for these nations, geoengineering offers a justified form of self‐defense from an unwarranted, albeit unintentional, aggression. This startling result places our own carbon‐emitting activities in a stark new light: in perpetrating climate change, we are, in fact, waging war on the most vulnerable. 相似文献
518.
Ryan Chaloner Winton Hall Susan Hatters Friedman Renee Sorrentino Maria Lapchenko Adeyemi Marcus Robert Ellis 《Behavioral sciences & the law》2019,37(5):540-558
There has been an assertion in certain parts of the media, especially social media, that the majority of individuals who have engaged in a school shooting were prescribed psychotropic medications prior to the event. To determine if there is any validity to this assertion, the authors of this article reviewed publicly available information regarding individuals involved in “educational shootings” per FBI publications for active shooters from 2000 to 2017. Sources of information included news reports with official citations, official reports regarding events, available court records, and FBI Freedom of Information Act requests. Secondary data‐points were also collected, such as location, number of weapons used, number of victims, legal outcome, and whether the shooter committed suicide. From the information obtained, it appears that most school shooters were not previously treated with psychotropic medications – and even when they were, no direct or causal association was found. 相似文献
519.
The multiple fitness model (Cunningham, 1986) suggests that attractive adult faces combine youthful neonate features with indications of sexual maturity. But a question can be raised whether the multiple fitness model applies to child molesters. In contrast to prior studies that examined child molesters’ attraction to children, we examined child molesters’ perceptions of adult women. Incarcerated child molesters (N= 68) rated the attractiveness of photographs of 24 adult women. Their ratings were compared with ratings made by 30 heterosexual college men. The 2 groups displayed remarkably similar judgments (r= .91). Child molesters were not more attracted to neonate features compared to other men, nor were they more repelled by maturity features. Like the college men, the child molesters were attracted to faces with large eyes and high cheekbones. Because the multiple fitness model applied to child molesters, differences between the sexual behavior of child molesters and other men do not seem to be attributable to differences in their perceptions of potential adult female partners’ faces. 相似文献
520.