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   854篇
  免费   19篇
  873篇
  2020年   14篇
  2019年   16篇
  2018年   26篇
  2017年   15篇
  2016年   23篇
  2014年   10篇
  2013年   107篇
  2012年   29篇
  2011年   23篇
  2010年   18篇
  2009年   29篇
  2008年   27篇
  2007年   45篇
  2006年   30篇
  2005年   26篇
  2004年   21篇
  2003年   29篇
  2002年   22篇
  2001年   15篇
  2000年   27篇
  1999年   11篇
  1998年   14篇
  1997年   7篇
  1996年   11篇
  1994年   9篇
  1993年   6篇
  1992年   9篇
  1990年   13篇
  1989年   9篇
  1988年   9篇
  1987年   11篇
  1986年   11篇
  1985年   12篇
  1984年   13篇
  1983年   7篇
  1982年   7篇
  1981年   6篇
  1980年   5篇
  1978年   6篇
  1976年   7篇
  1975年   6篇
  1973年   11篇
  1971年   5篇
  1970年   7篇
  1966年   5篇
  1959年   7篇
  1957年   6篇
  1953年   5篇
  1951年   8篇
  1950年   6篇
排序方式: 共有873条查询结果,搜索用时 15 毫秒
811.
The purpose of the study is to investigate Parkinson disease (PD) patients’ and caregivers’ knowledge of and interest in genetic testing. Gaucher disease (GD) results from recessive mutations in glucocerebrosidase (GBA). Both heterozygote GBA carriers and GD patients are at greater risk for PD. Studies regarding knowledge of and interest in genetic testing have been limited and have not offered genetic results to participants. In this study, 353 PD patients and 180 caregivers were recruited to a PD genetic study. The association between GD, GBA mutations and PD was described to participants who reported their familiarity with genetic terms, answered questions on genetic concepts, and indicated their interest in knowing if they may have GD (two GBA mutations) and other genetic information that could impact their health. Ninety-three-percent of participants were interested in receiving GBA results; however, only 51.6 % of PD participants and 55.6 % of caregivers knew that “scientists have identified genes associated with a higher risk of developing PD.” PD patients may benefit from education and genetic counseling on the implications of genetic testing.  相似文献   
812.
This study explores neurologists’ and psychiatrists’ knowledge, attitudes, and practices concerning genetic tests. Psychiatrists (n?=?5,316) and neurologists (n?=?2,167) on the American Medical Association master list who had agreed to receive surveys were sent an email link to a survey about their attitudes and practices regarding genetic testing; 372 psychiatrists and 163 neurologists responded. A higher proportion of neurologists (74 %) than psychiatrists (14 %) who responded to the survey had ordered genetic testing in the past 6 months. Overall, most respondents thought that genetic tests should be performed more frequently, but almost half believed genetic tests could harm patients psychologically and considered legal protections inadequate. Almost half of neurologists (49 %) and over 75 % of psychiatrists did not have a genetics professional to whom to refer patients; those who had ordered genetic tests were more likely than those who did not do so to have access to a genetic counselor. Of respondents, 10 % had received patient requests not to document genetic information and 15 % had received inquiries about direct-to-consumer genetic testing. Neurologists reported themselves to be relatively more experienced and knowledgeable about genetics than psychiatrists. These data, the first to examine several important issues concerning knowledge, attitudes and behaviors of neurologists and psychiatrists regarding genetic tests, have important implications for future practice, research, and education.  相似文献   
813.
Previous research has demonstrated that grouping information enhances enumeration, and that this advantage is significantly greater for observers with expertise in dynamic visuospatial tasks (e.g. air traffic controllers). We sought to elucidate whether this advantage is the result of over‐learned, automated responding in an enumeration experiment where many of the stimuli were incongruent as to canonical arrangement and numerosity. If so, we predicted that experts' performance would be more severely affected than novices'; if not, and experts continued to perform better than novices, we predicted that their response times should increase, reflective of the additional cognitive load needed. We demonstrated the latter is so. Experts continued to out‐perform novices but their response times were significantly slower suggesting that expertise is not rigid and automatic but, rather, is flexible and responsive to the specific situation, allowing experts to switch between strategies. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   
814.
Even after one stops actively pursuing a goal, many mental processes remain focused on the goal (e.g., the Zeigarnik effect), potentially occupying limited attentional and working memory resources. Five studies examined whether the processes associated with unfulfilled goals would interfere with tasks that require the executive function, which has a limited focal capacity and can pursue only one goal at a time. In Studies  and , activating a goal nonconsciously and then manipulating unfulfillment caused impairments on later tasks requiring fluid intelligence (solving anagrams; Study 1) and impulse control (dieting; Study 2). Study 3 showed that impairments were specific to executive functioning tasks: an unfulfilled goal impaired performance on logic problems but not on a test of general knowledge (only the former requires executive functions). Study 4 found that the effect was moderated by individual differences; participants who reported a tendency to shift readily amongst their various pursuits showed no task interference. Study 5 found that returning to fulfill a previously frustrated goal eliminated the interference effect. These findings provide converging evidence that unfulfilled goals can interfere with later tasks, insofar as they require executive functions.  相似文献   
815.
Eidelson R  Pilisuk M  Soldz S 《The American psychologist》2011,66(7):643-4; discussion 646-7
Comprehensive Soldier Fitness (CSF), the focus of the January 2011 special issue of the American Psychologist, is a $125 million resilience training initiative designed to reduce and prevent the adverse psychological consequences of combat for soldiers and veterans. These are worthy goals. Soldiers and veterans deserve the best care possible, and military psychologists have critically important roles to play. But the special issue is troubling in several important respects. Elsewhere, we have offered a detailed review (Eidelson, Pilisuk, & Soldz, 2011). Here we offer only a summary of our concerns. The CSF program is a massive research project launched without pilot testing to determine, first, the effectiveness of the training in a military environment. This is highly irregular and obviously worrisome considering the stakes. No evidence was provided indicating that CSF received preliminary review by an independent ethics review board. There are other ethically fraught possibilities.This special issue reveals much about current moral challenges facing the profession of psychology.  相似文献   
816.
Sexual economics theory assumes that heterosexual communities can be analyzed as marketplaces in which men offer women resources such as love, respect, money, and commitment in exchange for sex. In response to economic, political, and other disadvantages, women collectively restrict their sexuality to maintain a low supply relative to male demand, thereby ensuring a high price. Hence, we tested the hypothesis that sexual norms and practices would be more restrictive in countries marked by gender inequality than in countries where the genders were more equal. An international online sex survey (N>317,000) yielded four measures of sexual activity, and 37 nations' means on all four measures were correlated with independent (World Economic Forum) ratings of gender equality. Consistent with predictions, relatively high gender equality was associated with more casual sex, more sex partners per capita, younger ages for first sex, and greater tolerance/approval of premarital sex.  相似文献   
817.
Westerners habitually think in analytical ways, whereas East Asians tend to favor holistic styles of thinking. We replicated this difference but showed that it disappeared after control deprivation (Experiment 1). Brief experiences of control deprivation, which stimulate increased desire for control, caused Chinese participants to shift toward Western-style analytical thinking in multiple ways (Experiments 2-5). Western Caucasian participants also increased their use of analytical thinking after control deprivation (Experiment 6). Manipulations that required Chinese participants to think in Western, analytical ways caused their sense of personal control to increase (Experiments 7-9). Prolonged experiences of control deprivation, which past work suggested foster an attitude more akin to learned helplessness than striving for control, had the opposite effect of causing Chinese participants to shift back toward a strongly holistic style of thinking (Experiments 10-12). Taken together, the results support the reality of cultural differences in cognition but also the cross-cultural similarity of using analytical thinking when seeking to enhance personal control.  相似文献   
818.
This article explores the impact of consumers' regulatory goals on their relative focus on hedonic (versus utilitarian) benefits of products. Drawing from extant literature, we argue that promotion‐focused consumers will exhibit more favorable attitude towards a product when its hedonic benefits are highlighted in comparison to its utilitarian benefits. Prevention‐focused consumers on the other hand will exhibit more favorable attitude towards a product when its utilitarian benefits are highlighted in comparison to its hedonic benefits. We further argue that this effect is moderated by contextual factors, such as evaluation mode. In addition, we argue that the posited difference only holds when the hedonic and utilitarian products are evaluated individually. When the two products are evaluated jointly, both promotion and prevention‐focused individuals will exhibit more favorable attitude towards the hedonic product. Two studies were conducted to test the hypotheses and findings supported our predictions. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   
819.
Some people believe more than others in free will, and researchers have both measured and manipulated those beliefs. Disbelief in free will has been shown to cause dishonest, selfish, aggressive, and conforming behavior, and to reduce helpfulness, learning from one’s misdeeds, thinking for oneself, recycling, expectations for occupational success, and actual quality of performance on the job. Belief in free will has been shown to have only modest or negligible correlations with other variables, indicating that it is a distinct trait. Belief in free will has correlated positively with life satisfaction and finding life meaningful, with self‐efficacy and self‐control, with low levels of stress, and (though not entirely consistently) with internal locus of control. High belief in free will has been linked to a punitive attitude toward wrongdoers and lower forgiveness toward them. The belief seems to involve a sense of agency and expecting others to behave in morally responsible fashion.  相似文献   
820.
Misconceived causal explanations for emergent processes   总被引:1,自引:0,他引:1  
  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