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   1599篇
  免费   74篇
  2023年   8篇
  2021年   11篇
  2020年   28篇
  2019年   47篇
  2018年   46篇
  2017年   42篇
  2016年   47篇
  2015年   30篇
  2014年   35篇
  2013年   177篇
  2012年   60篇
  2011年   80篇
  2010年   52篇
  2009年   39篇
  2008年   69篇
  2007年   62篇
  2006年   78篇
  2005年   53篇
  2004年   47篇
  2003年   55篇
  2002年   50篇
  2001年   22篇
  2000年   24篇
  1999年   26篇
  1998年   30篇
  1997年   14篇
  1996年   28篇
  1995年   21篇
  1994年   16篇
  1993年   19篇
  1992年   24篇
  1991年   25篇
  1990年   20篇
  1989年   19篇
  1988年   15篇
  1987年   13篇
  1986年   19篇
  1985年   20篇
  1984年   20篇
  1983年   11篇
  1982年   17篇
  1981年   16篇
  1980年   17篇
  1979年   10篇
  1978年   17篇
  1977年   10篇
  1976年   9篇
  1975年   10篇
  1974年   8篇
  1973年   14篇
排序方式: 共有1673条查询结果,搜索用时 15 毫秒
151.
Adolescence is a unique developmental period when the salience of social and emotional information becomes particularly pronounced. Although this increased sensitivity to social and emotional information has frequently been considered with respect to risk behaviors and psychopathology, evidence suggests that increased adolescent sensitivity to social and emotional cues may confer advantages. For example, greater sensitivity to shifts in the emotions of others is likely to promote flexible and adaptive social behavior. In this study, a sample of 54 children and adolescents (age 8–19 years) performed a delayed match‐to‐sample task for emotional faces while undergoing fMRI scanning. Recruitment of the anterior cingulate and anterior insula when the emotion of the probe face did not match the emotion held in memory followed a quadratic developmental pattern that peaked during early adolescence. These findings indicate meaningful developmental variation in the neural mechanisms underlying sensitivity to changes in the emotional expressions. Across all participants, greater activation of this network for changes in emotional expression was associated with less social anxiety and fewer social problems. These results suggest that the heightened salience of social and emotional information during adolescence may confer important advantages for social behavior, providing sensitivity to others’ emotions that facilitates flexible social responding.  相似文献   
152.
Over the past decade, US states have responded to federal inaction on comprehensive immigration reform by increasing their output of immigrant policies, both beneficial and restrictive. Although there is a growing empirical literature focused on predicting such activity by states, less is known, especially on a broad scale, about the state-level consequences associated with the policy tone states adopt toward immigrants. To better understand the consequences of restrictive immigrant policies, we created a restrictive score for each state year between 2005 and 2014 and employed linear regression with panel-corrected standard errors to investigate effects on immigrant-related demographics, economic factors, and political participation. We found that states with higher restrictive policy tones do experience reductions in the number of foreign-born residents, including Hispanics and those with limited English proficiency, a goal of many state legislators who favor restrictive policies. States with restrictive policy tones showed reductions in unemployment and poverty rates as well, which are also professed goals for restrictive policy activity. Mediation analyses suggested that the effects of restrictive policy scores on economic conditions are indirect, being exerted through the percentage of a state’s population that is foreign born. Finally, though much attention is focused on the expected increase in Latino political clout, restrictive policy tone was not predictive of increased voter registration or voting in states that pass these types of policies. If anti-immigrant policies are inducing those who oppose these policies to mobilize politically, it must be in an arena outside of voting.  相似文献   
153.
People frequently observe others’ consumption, making inferences about both the consumer and the consumed brands. Although these observations are often beneficial for brands, this research demonstrates that observing luxury brand consumers whose consumption arose from unearned (vs. earned) financial resources reduces observers’ brand attitudes when observers place a high value on fairness. When fairness values are high, observers do not perceive luxury brand consumers who use unearned (vs. earned) consumption resources as prestigious, and in turn, lower prestige perceptions adversely affect observers’ brand evaluations for luxury brands. Consistent with our theorizing regarding the signaling of prestige, the joint effect of consumers’ consumption resources and observers’ fairness values on observers’ brand attitudes does not hold for nonluxury brands, which are not associated with prestige and thereby are not denigrated when the consumer is not perceived as prestigious. This research sheds light on the role of moral values in marketplace judgments of luxury consumption and brand attitude by considering the influence of consumption resources on observers’ judgments.  相似文献   
154.
The current practice of cancer genetic counseling is undergoing widespread change and scrutiny. While there are clinical resources for genetic counselors (GCs) regarding the delivery of cancer genetic services, there is limited literature regarding effective management of a genetic counseling clinical program. We have developed administrative tools to manage a large team of GCs at a single academic medical center over a period of increasing demand for genetics services, with the initial aim of decreasing wait time for urgent genetic counseling visits. Here, we describe the three main elements of the clinical operations: Balancing patient volume between GCs, scheduling tracks for both routine and urgent appointments, and a team of triaging GCs to ensure appropriate patient referrals. For each of these elements, we describe how they have been modified over time and present data to support the utility of these strategies. The preliminary evidence offered here suggests that these tools allow for an equitable distribution of patient volume between team members, as well as the timely and accurate scheduling of urgent patients. As a result of the experiences presented here, other genetic counseling programs grappling with similar issues should be aware that it is possible to shift clinical operations to serve certain patient populations in a more timely fashion while keeping both providers and GC staff satisfied.  相似文献   
155.
Traditionally, behavior analysts have studied stimulus equivalence using a matching‐to‐sample (MTS) preparation. Although researchers have shown the utility of MTS to yield equivalence classes, the procedure requires several prerequisite skills for a learner to accurately respond. Previous research with humans and nonhumans has shown that relational responding can be produced via compound stimulus discrimination and successive matching‐to‐sample (S‐MTS). We conducted four experiments with college students to further evaluate the effectiveness of S‐MTS in the establishment of stimulus relations. S‐MTS trials consisted of the presentation of a single sample stimulus followed by one comparison in a fixed location on a computer screen. Depending upon the sample–comparison relation, participants touched (i.e., go) or did not touch (i.e., no‐go) the comparison stimulus. Following training of the baseline relations (AB/BC), we assessed the emergence of symmetry, transitivity, and equivalence performances (i.e., BA/CB and AC/CA). Results support the utility of the S‐MTS procedure as a possible alternative to traditional MTS. This study has direct implications for participants for whom traditional three‐array MTS procedures may be challenging.  相似文献   
156.
157.
158.
Intrigued by Robinson and Southgate's 2010 work on “entering a semiotic matrix,” we expand their model to include the juxtaposition of all signs, symbols, and mental categories, and to explore the underpinnings of creativity in science, religion, and art. We rely on an interdisciplinary review of human sentience in archaeology, evolutionary biology, the cognitive science of religion, and literature, and speculate on the development of sentience in response to strong selection pressure on the hominin evolutionary line, leaving us the “lone survivors” of complex, multiple lines of physical and cultural evolution. What we call Matrix Thinking—the creative driver of human sentience—has important cognitive and intellectual features, but also equally important characteristics traced to our intense sociability and use of emotionality in vetting rational models. Scientist, theologian, and artist create new cultural knowledge within a social context even if alone. They are rewarded by emotional validation from group members, and guided by the ever present question, “Does it feel right?”  相似文献   
159.

Purpose

This study tested competing predictions about the impact of nepotistic hiring on perceptions of nepotism beneficiaries, focusing specifically on the performance attributions made about nepotism hires. Of particular interest is how the qualifications of the family member compared to other applicants impacts perceptions of the nepotism hire.

Methodology

Two experimental studies, using scenarios that simulated the hiring process, were conducted. Participants reviewed materials describing the hiring process for a manager and then completed a questionnaire assessing their perceptions of the person hired.

Findings

Results showed that successful performance of nepotism beneficiaries was attributed more to political skills and relationships with upper management and less to ability and effort than was the case for non-beneficiaries and that they were perceived as less competent and as having fewer characteristics of successful managers. These negative perceptions occurred regardless of the family member’s qualifications.

Implications

This study contributes to our understanding of nepotistic hiring practices. More negative performance attributions and perceptions of competence for nepotism beneficiaries may hinder their effectiveness on the job. Knowledge gained from this study may help businesses who want to hire family members of current employees to manage this process more effectively.

Originality/Value

This is one of the first studies to examine the consequences of nepotistic hiring for nepotism beneficiaries and the first study to examine how nepotistic hiring effects the performance attributions made about nepotism beneficiaries. It is also the only study to empirically examine how the qualifications of the nepotism beneficiary influence others’ reactions to them.
  相似文献   
160.
Non-suicidal self-injury (NSSI) represents a critical mental health issue among young adults. Accordingly, it is important to understand potentially modifiable processes involved in its enactment. The current investigation built on previous work to better understand the nature of early maladaptive schemas (EMS) in the context of NSSI. One hundred and thirty young adults completed questionnaires assessing NSSI history, EMS and depressive symptoms. Results indicate that EMS may play a role in NSSI engagement after controlling for depressive symptoms. Specifically, higher scores on social isolation and emotional inhibition and possibly lower scores on entitlement/grandiosity schemas may differentiate those who self-injure from those who do not. Furthermore, higher levels of dependence/incompetence schema may differentiate those who report a higher NSSI frequency and those who report a less frequent NSSI history. Although a nascent area of study, our findings suggest that it may be fruitful to consider conceptualizing NSSI within a schema therapy framework.  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