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   4991篇
  免费   1070篇
  国内免费   33篇
  6094篇
  2018年   63篇
  2017年   66篇
  2016年   71篇
  2014年   65篇
  2013年   402篇
  2012年   116篇
  2011年   161篇
  2010年   177篇
  2009年   228篇
  2008年   175篇
  2007年   188篇
  2006年   164篇
  2005年   174篇
  2004年   195篇
  2003年   195篇
  2002年   155篇
  2001年   159篇
  2000年   92篇
  1999年   132篇
  1998年   140篇
  1997年   97篇
  1996年   129篇
  1995年   105篇
  1994年   116篇
  1993年   121篇
  1992年   130篇
  1991年   133篇
  1990年   112篇
  1989年   113篇
  1988年   86篇
  1987年   76篇
  1986年   75篇
  1985年   62篇
  1984年   73篇
  1983年   56篇
  1982年   79篇
  1981年   76篇
  1980年   64篇
  1979年   68篇
  1978年   54篇
  1977年   56篇
  1976年   55篇
  1975年   59篇
  1972年   57篇
  1971年   58篇
  1968年   64篇
  1966年   57篇
  1964年   84篇
  1963年   76篇
  1962年   54篇
排序方式: 共有6094条查询结果,搜索用时 15 毫秒
971.
972.
The bundling literature largely holds that a person's reaction to a given product bundle depends only on the characteristics of the products contained in the bundle. This paper, instead, proposes that people evaluate bundles in reference to other bundles that they have seen. Prior research indicates that people are sensitive to a bundle's “attribute inventory” or the aggregate level of comparable attributes possessed by its constituent products. We show that when people evaluate a bundle, they compare the attribute inventories that it offers to those offered by other bundles that they have seen. The resulting compositional comparisons can occur without changes to the products that comprise the target and contextual bundles, vary by attribute comparability and attentional focus, and coexist with (and at times reverse the effects of) well‐established product‐specific context effects, which are determined solely by the products and their attributes.  相似文献   
973.
To differentiate romantic disillusionment from similar constructs of dissatisfaction and regret, functional Magnetic Resonance Imaging (fMRI) data obtained when romantically involved individuals (N = 39) were reminded of relationship events representing these emotions were analyzed. Whole‐brain activations suggested disillusionment‐linked processes not observed for dissatisfaction or regret. Compared to dissatisfying events, disillusioning ones showed greater activity in regions pertaining to evaluation, reflection, and reconciling conflicting information (e.g., anterior cingulate cortex). No regions showed significantly more activation for dissatisfying than disillusioning events. Compared to regret‐inducing events, disillusioning events showed greater activation in areas thought pertinent to detail processing and decision making (occipital fusiform and lingual gyrus). Regret‐inducing events activated regions suggesting the planning and thoughts of how one could have acted differently (e.g., prefrontal cortex).  相似文献   
974.
In this three‐wave study (n = 121 couples), we tested whether one couple‐member's relational transgressions (high and low severity) at Wave 1 predicted less idealization on warmth and competence traits and greater disillusionment by the partner at the next two waves. It was hypothesized that (a) greater frequency of the target partner's severe transgressions in 1 month would be needed to reduce how much the other partner idealized the target in the competence domain, (b) higher frequency of even relatively less severe transgressions would lower the partner's idealization of the target in the warmth domain, and (c) any transgressions would raise perceivers' disillusionment. Longitudinal analyses (controlling for earlier idealization and disillusionment) substantially supported predictions.  相似文献   
975.
Against a background of huge changes in the world of university and college students since the turn of the millennium, together with a multitude of reports on student mental health/wellbeing, this article argues that the field of student mental health is hampered by the imprecise use of terms, a rush to action by universities in the absence of a robust evidence‐base, and a lack of overall coordination and collaboration in the collection and use of data. In response, we argue for clearer and more consistent use of definitions of, as well as differentiations between, student wellbeing and mental health, for a longitudinal approach to the student body that captures their developmental transitions to and through university, and a strategic and systematic approach to the use of bona fide measures in the collection of data on wellbeing and on the process of outcomes in embedded university counselling services. Such a coordinated approach will provide the necessary evidence‐base upon which to develop and deliver appropriate support and interventions to underpin and enhance the quality of students’ lives and learning while at university or college.  相似文献   
976.
977.
Haitians in the Dominican Republic (DR) are increasingly marginalized due to recent legislation that stripped Haitian-Dominicans of their citizenship and increased Haitian migrants’ deportation risk. Haitian female sex workers (FSWs) are particularly vulnerable, though little is known about them. This study will help public health efforts targeted at sex workers to better reach Haitian FSWs and address their needs by identifying a profile of characteristics unique to this group compared to Dominican FSWs. Data were collected in 2014 among Haitian and Dominican FSWs in Puerto Plata, DR. Surveys assessed respondents’ demographics, health consciousness, depression, and stigma. Adjusted logistic regressions showed that Haitian FSWs were disadvantaged: they had significantly lower rates of education, more children, and less permanent income. Furthermore, Haitian FSWs were more likely to work independently and for fewer hours. Interestingly, Haitian FSWs internalized less stigma than Dominicans. Though we can only speculate, this could be due to migration for sex work, or the lack of formal employment for Haitians. Initiatives to alleviate poverty, create formal jobs, and overturn discriminatory legislation may have the most impact for Haitian FSWs.  相似文献   
978.
Humans are remarkably capable of finding desired objects in the world, despite the scale and complexity of naturalistic environments. Broadly, this ability is supported by an interplay between exploratory search and guidance from episodic memory for previously observed target locations. Here we examined how the environment itself may influence this interplay. In particular, we examined how partitions in the environment—like buildings, rooms, and furniture—can impact memory during repeated search. We report that the presence of partitions in a display, independent of item configuration, reliably improves episodic memory for item locations. Repeated search through partitioned displays was faster overall and was characterized by more rapid ballistic orienting in later repetitions. Explicit recall was also both faster and more accurate when displays were partitioned. Finally, we found that search paths were more regular and systematic when displays were partitioned. Given the ubiquity of partitions in real-world environments, these results provide important insights into the mechanisms of naturalistic search and its relation to memory.  相似文献   
979.
Bertrand Russell [1912] argued that we are acquainted with our experiences. Although this conclusion has generated a lot of discussion, very little has been said about Russell's actual arguments for it. This paper aims to remedy that. I start by spelling out two Russellian arguments for acquaintance. Then I show that these arguments cannot both succeed. For if one is sound, the other isn't. Finally, I weigh our options with respect to these arguments, and defend one option in particular. I argue that we have good reason to believe that we can be, and sometimes are, acquainted with our experiences.  相似文献   
980.
Film clips and narrative text are useful techniques in eliciting emotion in a laboratory setting but have not been examined side-by-side using the same methodology. This study examined the self-identification of emotions elicited by film clip and narrative text stimuli to confirm that selected stimuli appropriately target the intended emotions. Seventy participants viewed 30 film clips, and 40 additional participants read 30 narrative texts. Participants identified the emotion experienced (happy, sad, angry, fearful, neutral—six stimuli each). Eighty-five percent of participants self-identified the target emotion for at least two stimuli for all emotion categories of film clips, except angry (only one) and for all categories of narrative text, except fearful (only one). The most effective angry text was correctly identified 74% of the time. Film clips were more effective in eliciting all target emotions in participants for eliciting the correct emotion (angry), intensity rating (happy, sad), or both (fearful).  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