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141.
The effects of the recent explosion of Internet-based health information are little understood. Past research suggests that Internet information on drugs such as ecstasy and speed could increase knowledge of the drugs' potential danger while at the same time making attitudes towards them more accepting. To examine this question, a laboratory experiment was conducted in which participants were randomly assigned to search the Internet for information on "club drugs" or on an unrelated topic. Among those with no history of drug use, Internet searchers came to know more than nonsearchers about ecstasy and speed, and rated more highly the benefit of club drugs and their social disinhibiting effects. Among participants with a history of drug use, Internet searchers and nonsearchers showed fewer differences. The three main findings of this study were that searching increased knowledge, while normalizing risky behavior, but primarily for novices. This leads to the conclusion that people new to a health behavior may be most porous to new ideas presented on the Internet as they stabilize their mental model of the behavior.  相似文献   
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143.
Members of the Iowa Academy of Family Physicians participated in a survey study in which they were asked to make hypothetical decisions in either high- or low-conflict treatment conditions. In the low-conflict treatment condition the options were a common medication with a referral or a referral only. In the high-conflict treatment condition the same two options were given plus another attractive medication. In addition, we manipulated accountability by asking half of the participants to provide a written defense of their treatment options, which they would then agree to discuss at a later time. The results showed that physicians in the high-conflict condition chose the referral-only option significantly more than the physicians in the low-conflict condition, thus violating the normative rule of regularity. Moreover, that pattern was significantly amplified for physicians who were held accountable for their treatment decisions. These findings replicate and extend previous research and are discussed within the framework of reason-based choice.  相似文献   
144.
Women at greatest risk for hereditary breast and ovarian cancer may consider prophylactic removal of breasts or ovaries as a risk-reduction measure. This report describes uptake of risk-reduction mastectomy (RRM), risk-reduction oophorectomy (RRO), and related factors in 62 high-risk women who received genetic counseling. Seven (11%) participants underwent RRM and 13 (21%) underwent RRO. Of these women, 37% did not have BRCA testing, suggesting other factors influence decisions to undergo surgery. Women who had indicated (pre-genetic counseling) their intent not to have surgery chose not to have surgery. Information received during genetic counseling that women perceived as being most important for influencing risk-reduction surgery decisions was BRCA test result (positive or negative), followed by discussion of family cancer history. Reasons for indecision about risk-reduction surgery included genetic testing results, concerns about surgery, timing in life, and early menopause. The findings enhance our understanding of information that is helpful to women considering this surgery.  相似文献   
145.
Some contemporary Kantians have argued that one could not be virtuous without having internalized certain patterns of awareness that permit one to identify and respond reliably to moral reasons for action. I agree, but I argue that this insight requires unrecognized, farreaching, and thoroughly welcome changes in the traditional Kantian understanding of maxims and virtues. In particular, it implies that one's characteristic emotions and desires will partly determine one's maxims, and hence the praiseworthiness of one's actions. I try to show this by pointing out an instability in the Kantian understanding of maxims. On the one hand, maxims are thought of as consciously affirmed, subjective principles of action. On the other hand, Kantians claim that nothing counts as an action, nor as morally assessable, unless it has a maxim. One cannot take both thoughts seriously without implausibly constricting the range of behavior that counts as action, hence as morally assessable. This difficulty can be overcome, I suggest, by jettisoning the idea that maxims must be consciously affirmed, and by stressing the way in which maxims are grounded in the pruning and shaping of one's emotions and desires during socialization. This opens the door to a rich Kantian theory of virtue. It also raises questions about the scope and ground of our moral responsibility, which I address at the end of the paper.  相似文献   
146.
The authors examined how a crime schema influenced the types of details witnesses recalled over multiple interviews that varied in delay before the initial interview and between subsequent interviews. Accuracy data showed that, in general, schema-irrelevant traces experienced greater decay than schema-consistent and schema-inconsistent traces after the initial interview and that delaying the initial interview negatively affected recall at the initial interview but led to less decay over subsequent interviews. Ambiguity of the crime stimulus was also manipulated. Witnesses used their schema to interpret ambiguous information and, as a result, made more schema-consistent intrusions and less correct responses and were more likely to report false memories that involved conscious recollection (using the remember-know paradigm).  相似文献   
147.
This study investigated whether a prior context influenced lexical access as indexed by participants' electrophysiological response in the N1 from 132 to 192 ms poststimulus. Ambiguous, high-frequency (HF), and low-frequency (LF) words were presented in neutral and biasing contexts. Event-related potentials (ERPs) for ambiguous words were compared with those for unambiguous HF (word form) and LF (word meaning) control words. Word frequency effects in the N1 extended previous ERP findings. A marginal effect of context for LF words provided electrophysiological support for the context-by-frequency interaction shown in reaction time paradigms. In neutral context, responses to ambiguous words were comparable to responses to HF words, and in biasing context (where context instantiated the subordinate sense), responses to ambiguous words were comparable to responses to LF words. The results establish temporal parameters for the early operation of context in lexical access. These constraints are more consistent with an interactive than a modular account.  相似文献   
148.
This study was concerned with the mechanism(s) via which performance monitoring affects task performance. To investigate whether an individual's concerns over the evaluation of his or her performance underlie the effects of performance monitoring (independent of contingent consequences) on the distribution of effort across tasks, the study examined whether the way in which individuals performed two tasks was differentially affected by the way in which supervisors monitored performance on those tasks. Subjects working in a group setting performed two different tasks for 90 minutes, their instructions being to perform as well as possible on each task. When supervisors periodically monitored the work output of each individual within the group on one of the two tasks, subjects perceived that the supervisor was evaluating and comparing individual performance, and produced more on the monitored task at the expense of the unmonitored task. When, however, the supervisor's monitoring focused on group rather than individual products, subjects perceived that the supervisor was less likely to be able to evaluate and to compare individual performance, and their performance on the two tasks was the same, regardless of which task was monitored. Path analysis supported the interpretation that the effects of monitoring on performance were mediated by evaluation concerns associated with performance on each task.  相似文献   
149.
Abstract— Artificial social categories were created in a laboratory context in order to test predictions regarding the relative importance of group size and status as determinants of in-group favoritism. Subjects were assigned to categories of "overestimator" or "underestimator" and were told that one category included a majority of college students while the other represented a minority. Prior to category assignment, half of the subjects had been given confidentiality instructions designed to make them feel highly depersonalized. Based on feedback about test performance, status differentials between the two estimation categories were introduced.
Consistent with predictions, there was a three-way interaction between depersonalization, in-group size, and in-group status as determinants of evaluative in-group bias on social trait ratings. Under control conditions (no depersonalization), group status and majority size both contributed to positive valuations of the in-group. Under the depersonalization condition, however, subjects valued minority group membership more than majority categorization, and the effect of status was eliminated.  相似文献   
150.
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