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91.
Giles W. Story Zeb Kurth-Nelson Molly Crockett Ivo Vlaev Ara Darzi Raymond J. Dolan 《Journal of the experimental analysis of behavior》2020,114(3):308-325
Impatience can be formalized as a delay discount rate, describing how the subjective value of reward decreases as it is delayed. By analogy, selfishness can be formalized as a social discount rate, representing how the subjective value of rewarding another person decreases with increasing social distance. Delay and social discount rates for reward are correlated across individuals. However no previous work has examined whether this relationship also holds for aversive outcomes. Neither has previous work described a functional form for social discounting of pain in humans. This is a pertinent question, since preferences over aversive outcomes formally diverge from those for reward. We addressed this issue in an experiment in which healthy adult participants (N = 67) chose the timing and intensity of hypothetical pain for themselves and others. In keeping with previous studies, participants showed a strong preference for immediate over delayed pain. Participants showed greater concern for pain in close others than for their own pain, though this hyperaltruism was steeply discounted with increasing social distance. Impatience for pain and social discounting of pain were weakly correlated across individuals. Our results extend a link between impatience and selfishness to the aversive domain. 相似文献
92.
The Theory of Planned Behavior: A Conceptual Framework to View the Career Development of Women 总被引:1,自引:0,他引:1
This study explores the role played by self-efficacy in predicting employees' intentions to apply for promotion, and also to confirm its importance as a third independent determinant of intention within the theory of planned behavior. To this end, questionnaires were administered to 108 employees of an organization operating in the north of Ireland. Regression analyses not only provided strong support for the addition of self-efficacy to the variables contained within Ajzen & Fishbein's (1980) framework, but also highlighted its importance in the context of women. Indeed, for women, it helped to explain some 77% of the variance and produced the strongest relationship with the intention variable. For men, however, only 54% of the variance was explained, and some importance was also attributed to the normative component of the model. 相似文献
93.
The world I grew up in believed that change and development in life are part of a continuous process of cause and effect, minutely and patiently sustained throughout the millenniums. With the exception of the initial act of creation ..., the evolution of life on earth was considered to be a slow, steady and ultimately demonstrable process. No sooner did I begin to read history, however, than I began to have my doubts. Human society and living beings, it seemed to me, ought to be excluded from so calm and rational a view. The whole of human development, far from having been a product of steady evolution, seemed subject to only partially explicable and almost invariably violent mutations. Entire cultures and groups of individuals appeared imprisoned for centuries in a static shape which they endured with long-suffering indifference, and then suddenly, for no demonstrable cause, became susceptible to drastic changes and wild surges of development. It was as if the movement of life throughout the ages was not a Darwinian caterpillar but a startled kangaroo, going out towards the future in a series of unpredictable hops, stops, skips and bounds. Indeed, when I came to study physics I had a feeling that the modern concept of energy could perhaps throw more light on the process than any of the more conventional approaches to the subject. It seemed that species, society and individuals behaved more like thunder-clouds than scrubbed, neatly clothed and well-behaved children of reason. Throughout the ages life appeared to build up great invisible charges, like clouds and earth of electricity, until suddenly in a sultry hour the spirit moved, the wind rose, a drop of rain fell acid in the dust, fire flared in the nerve, and drums rolled to produce what we call thunder and lightening in the heavens and chance and change in human society and personality.LAURENS VAN DER POST, The Lost World of the Kalahari 相似文献
94.
John Christian Nicholas J. Gadfield Howard Giles Donald M. Taylor 《International journal of psychology》1976,11(4):281-291
The present study explores the extent to which ethnic identity is multidimensional and susceptible to changes in social context. Two groups of Welsh adolescents were asked to write an essay either related or unrelated to English-Welsh conflicts. They were then administered a multidimensional scaling questionnaire which involved having them make similarity judgments between various stimulus labels including certain Welsh and English social groups. It was found that both groups of subjects conceptualized the stimulus labels multidimensionally in terms of a Welsh-English cultural dimension and a radical separatist-conservative integrationist dimension. In addition, it was found that increasing the salience of intergroup conflict led Welshmen to closer affiliation with ingroups and an accentuated polarization of outgroups on the former dimension. 相似文献
95.
H. Giles N. Llado D.J. McKirnan D.M. Taylor 《International journal of psychology》1979,14(1-4):185-201
This study examines the social identity of 384 high school students from four age levels (10, 12, 15 and 17 years-old) in Puerto Rico. This complex society represents an interesting context because of the potential relevance of a number of dimensions for identity including language, cultural heritage, economic status, religion and political beliefs. An important methodological refinement is introduced in order to permit simultaneous examination of these various dimensions in terms of Puerto Rican identity. Three major dimensions of the students' social identity emerged from multidimensional scaling analyses and these were seen to contrast with previous research on ethnic identity in Canada, the United States and Wales. 相似文献
96.
Age-, sex-, race-, and employment-adjusted standardized mortality ratios (SMRs) were calculated for sailors committing suicide between 1990 and 1996 and compared with adjusted SMRs for civilians. Cluster analyses were conducted on annual rates from 1983 through 1995 to examine differences between comparison groups across time and location. Results showed fewer than expected suicides for Caucasian and African American males and a somewhat higher than expected suicide rate among other ethnic group males and among Caucasian women. The suicide rate showed an increase during the study period, with some evidence toward a clustering effect in time and space. 相似文献
97.
Although many scientists view cloning as a useful procedure for scientific research into early embryo development -- one that cannot currently be used to produce multiple copies of humans -- the popular literature has led some individuals to view it as sinister. To address the concerns of the public, various conceptions of cloning are distinguished and their basis in fact analyzed. The possible uses, benefits, and detriments of both embryo splitting and nuclear transplantation are explained. Once the nature and purposes of cloning are understood, and the distinctive ethical dilemmas created by embryo splitting and nuclear transplantation are sorted out, these procedures should be clinically implemented to assist in vitro fertilization treatment for those who are infertile and to further other therapeutic and investigational efforts in medicine. 相似文献
98.
99.
David Canter Susan Giles Catherine Nicol 《Journal of Investigative Psychology & Offender Profiling》2004,1(3):227-248
Although it is usually assumed that all those who commit suicide give some prior indication of their intention to take their own life, there is growing evidence that a small but significant proportion of suicides occur without any clear, explicit indicators. It is proposed that these suicides share similar pathways to other suicides but that the despair involved is not expressed so clearly, often being kept secret. In order to identify such suicides and potential suicides it is helpful to have an indicator of the dominant sub‐sets of constituents that are precursors to suicide. A 14‐item Suicide Precursors Scale (SPS) was therefore developed. This was applied to 128 cases of suicide that occurred between January 1997 and December 2000 in Stockport (South Manchester, UK). A very high alpha coefficient of 0.98 supported the reliability and homogeneity of the SPS. A Multi‐Dimensional Scaling (MDS) analysis of the SPS revealed three prototypical sub‐sets of expressions of suicidal actions—illness, life circumstances, and depressive history. These are offered as coherent themes in the life of potential suicides, which may be of assistance both in determining whether an equivocal death is suicide or not, and in alerting caring agencies to the potential for suicide even when the despair is kept secret. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
100.
This review surveys the literature that investigates the behavioral characterization and cellular and molecular mechanisms of habituation using the model organism Caenorhabditis elegans. In 1990, C. elegans was first observed to show habituation to a non-localized mechanical tap. The parameters that govern this behavioral plasticity in C. elegans were subsequently characterized, which lead to the important hypothesis that habituation is mediated by multiple mechanisms. Many tools are available to C. elegans researchers that allow for relatively easy genetic manipulation. This has lead to a number of recent genetic studies that have begun to identify key genes and molecules that play a role in the mechanisms of habituation. Some of these genes include a vesicular glutamate transporter, a glutamate receptor subunit, a dopamine receptor and downstream intracellular signaling molecules, such as G proteins and kinases. Some of these genes only affect certain parameters of habituation, but not others supporting the hypothesis that multiple mechanisms mediate habituation. The field of research has also led to the dissection of different phases of memory (short-term vs. long-term memory for habituation), which are triggered by different training paradigms. The differences in mechanism between these various forms of memory are also beginning to be revealed. 相似文献