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   1344篇
  免费   72篇
  国内免费   62篇
  2023年   12篇
  2021年   16篇
  2020年   24篇
  2019年   22篇
  2018年   26篇
  2017年   43篇
  2016年   34篇
  2015年   20篇
  2014年   27篇
  2013年   126篇
  2012年   56篇
  2011年   62篇
  2010年   34篇
  2009年   45篇
  2008年   63篇
  2007年   67篇
  2006年   73篇
  2005年   55篇
  2004年   40篇
  2003年   38篇
  2002年   24篇
  2001年   26篇
  2000年   30篇
  1999年   26篇
  1998年   16篇
  1997年   20篇
  1996年   13篇
  1995年   15篇
  1994年   13篇
  1992年   14篇
  1991年   13篇
  1990年   11篇
  1989年   12篇
  1988年   11篇
  1987年   11篇
  1986年   18篇
  1985年   25篇
  1984年   18篇
  1983年   18篇
  1982年   18篇
  1981年   16篇
  1980年   17篇
  1979年   10篇
  1978年   22篇
  1977年   18篇
  1975年   11篇
  1973年   8篇
  1971年   13篇
  1968年   9篇
  1966年   8篇
排序方式: 共有1478条查询结果,搜索用时 15 毫秒
911.
We report three experiments investigating how people process anomalous sentences, in particular those in which the anomaly is associated with the verb. We contrast two accounts for the processing of such anomalous sentences: a syntactic account, in which the representations constructed for anomalous sentences are similar in nature to the ones constructed for well-formed sentences; and a semantic account, in which the representations constructed for anomalous sentences are erroneous, or altogether missing, and interpretation is achieved on the basis of semantic representations instead. To distinguish between these accounts, we used structural priming. First, we ruled out the possibility that anomaly per se influences the magnitude of the priming effect: Prime sentences with morphologically incorrect verbs produced similarly enhanced priming (lexical boost) to sentences with the same correct verbs (Exp. 1). Second, we found that prime sentences with a novel verb (Exp. 2) or a semantically and syntactically incongruent verb (Exp. 3) produced a priming effect, which was the same as that produced by well-formed sentences. In accord with the syntactic account, we conclude that the syntactic representations of anomalous sentences are similar to those constructed for well-formed sentences. Our results furthermore suggest that lexically-independent syntactic information is robust enough to produce well-formed syntactic representations during processing without requiring aid from lexically-based syntactic information.  相似文献   
912.
Ellis et al. (2012) bring an evolutionary perspective to bear on adolescent risky behavioral development, clinical practice, and public policy. The authors offer important insights that (a) some risky behaviors may be adaptive for the individual and the species by being hard-wired due to fitness benefits and (b) interventions might be more successful if they move with, rather than against, the natural tendencies of an adolescent. Ellis and colleagues criticize the field of developmental psychopathology, but we see the 2 fields as complementary. Their position would be enhanced by integrating it with contemporary perspectives on dynamic cascades through which normative behavior turns into genuinely maladaptive outcomes, dual processes in adolescent neural development, and adolescent decision making. Finally, they rightly note that innovation is needed in interventions and policies toward adolescent problem behavior.  相似文献   
913.
The issue of South?CNorth migration, especially Africa?CEuropean Union (EU) migration, has moved to the center stage of international development debate. Unfortunately, however, interests and arguments by policy-makers, development agencies, and citizens of the EU mainly focus on the consequences of migration on the ??receiving?? societies. The real causes of migration from Africa and migrants?? contribution to the social and economic development of both the ??sending?? and ??receiving?? countries have not been objectively discussed. Provision of labor to EU member countries, remittances, and financial transfers to and investments made by African migrants in their respective home countries are essential elements in the African?CEU migration and development cooperation debate. It is estimated that South?CNorth migrants?? remittances to developing countries increased from US$2 billion in 1970 to US$71 billion in 2001. Moreover, financial flows emanating from African migrants in the developed countries significantly contribute to the development of the continent. In order to concretize and objectify the discussion, a socio-economic survey was conducted on a representative sample of Ghanaian migrants and their families in the Flemish Community in Belgium. Extensive literature review on migration, administration of questionnaires to Ghanaians resident in Flanders, Belgium, and consultations with African and international experts on migration and international development cooperation were the methods used for this investigation. The paper identifies and analyzes the factors that ??push?? and ??pull?? Ghanaians to migrate to Belgium, the EU, and the developed countries in general. The socio-economic situation of Ghanaian migrants in Flanders and their contribution to the sustainable development of Belgium, the EU, and Ghana are rigorously analyzed. Furthermore, the challenges posed by South?CNorth migration are identified and appropriate and effective win-win mitigation strategies proposed for redressing the problematic in a sustainable way.  相似文献   
914.
In this study, we investigated the interactions between temporal and spatial information in auditory working memory. In two experiments, participants were presented with sequences of sounds originating from different locations in space and were then asked to recall either their position or their serial order. In Experiment 1, attention during encoding was manipulated by contrasting 'pure' blocks (i.e., location-only or serial-order-only trials) to 'mixed' blocks (i.e., different percentages of spatial and serial-order trials). In Experiment 2, 'pure' blocks were contrasted to blocks in which spatial and serial-order trials were intermixed with a third task requiring a semantic categorization of sounds. Results from both experiments showed that, whereas serial-order recall is linearly affected by the simultaneous encoding of a concurrent feature, the recall of position is mostly unaffected by concurrent feature encoding. Contrastingly, overall performance level was lower for spatial recall than serial recall. We concluded that serial order and location of items appear to be independently encoded in auditory working memory. Serial order is easier to recall, but strongly affected by the processing of concurrent item dimensions, while item location is more difficult to recall, but relatively automatic, as shown by its strong resistance to interfering dimensions in encoding.  相似文献   
915.
We show that time priming leads consumers to adopt an alternative-based evaluation strategy, whereas money priming elicits the use of an attribute-based evaluation strategy. In Experiment 1, we used process tracing in Mouselab to test this proposition, and the results suggested that the effect of time versus money priming on the choice of product-evaluation strategy was mediated by a holistic versus piecemeal information-processing. The results of Experiments 2A and 2B showed that the use of time versus money priming to trigger the choice of an alternative-based versus attribute-based evaluation strategy may result in systematic preference reversals. Specifically, when time (versus money) was primed, the participants were found to be more likely to choose a product dominating on a verbally described (versus numerically described) attribute (Experiment 2A), and one dominating on a non-alignable (versus alignable) attribute (Experiment 2B).  相似文献   
916.
Research suggests that the presence of peers influences adolescent risk‐taking by increasing the perceived reward value of risky decisions. While prior work has involved observation of participants by their friends, the current study examined whether observation by an anonymous peer could elicit similarly increased reward sensitivity. Late adolescent participants completed a delay discounting task either alone or under the belief that performance was being observed from a neighboring room by an unknown viewer of the same gender and age. Even in this limited social context, participants demonstrated a significantly increased preference for smaller, immediate rewards when they believed that they were being watched. This outcome challenges several intuitive accounts of the peer effect on adolescent risk‐taking, and indicates that the peer influence on reward sensitivity during late adolescence is not dependent on familiarity with the observer. The findings have both theoretical and practical implications for our understanding of social influences on adolescents' risky behavior.  相似文献   
917.
David Henderson and Terry Horgan offer a detailed account of the structure of conceptual analysis that is embedded within a more general account of a priori justification. Their account highlights an important feature of conceptual analysis that has been overlooked in the recent debate. Although it is generally recognized that conceptual analysis involves an inference from premises to the effect that some concept does (or does not) apply to a range of particular cases to a general conclusion about the nature of the concept itself, the details of that inference have not been fully articulated. Henderson and Horgan offer an articulation of the inferential connection which, taken in conjunction with their account of a priori justification, yields a startling conclusion about the epistemic status of the results of conceptual analysis. My view is that their account of a priori justification misses the mark and, as a consequence, they arrive at a conclusion about the epistemic status of the results of conceptual analysis that many will find implausible. Moreover, I fear that because many will find their overall conclusion implausible, they will either overlook or dismiss the important feature of the inferential connection that Henderson and Horgan correctly highlight. Hence, I have two goals. First, I want to track down the source of their mischaracterization of the a priori and to show why it is a mischaracterization. Second, I want to highlight the important feature of the inferential connection involved in conceptual analysis that they identify, articulate its bearing on the debate over the existence of a priori knowledge and assess its implications.  相似文献   
918.
The purpose of the study was to determine (via meta-analysis) whether team-oriented attributions in sport are team-serving. Analyses were carried out with 21 studies containing 99 effect sizes. The results indicated (a) the presence of a team-serving bias, (b) no temporal change in the pattern of results from studies using operational definitions based on Weiner's theoretical model, and (c) significant differences (p < .05) between the internal composite dimension (i.e., ability/effort versus task difficulty/luck) advanced by Weiner (1985) and the internal dimensions developed by Greenlees et al. (2005; Causal Dimension Scale for Teams). This study documents the continued presence of the team-serving bias.  相似文献   
919.
Taiwan is an emerging industrial country in subtropical Asia with a population of 23 million. There were around 200,000 newborns in 2011. Delayed first marriage, low birth rate, and rapid aging are major demographic issues. Genetic counseling services were established following the rapid introduction of genetic technology and enactment of relevant laws and regulations. Ultrasound was first used in 1968 to examine pregnant women. The first amniotic fluid laboratory was founded in 1981 to identify chromosomal abnormalities. In 1984, the Genetic Health Act was legislated for prevention and control of genetic disorders, and the metabolic disorder screen project was launched. National Health Insurance with overall coverage of prenatal examinations was established in 1995. A master-level genetic counseling program was launched in 2003 and by 2011 has graduated eighty students. Two professional societies have been formed to certify genetic counselors, and 66 professionals have been certified. In summary, genetic counseling services in Taiwan are continuously improving.  相似文献   
920.
The aim of this study was to determine if patients with Borderline Personality Disorder (BPD) present higher emotional response than healthy controls in a laboratory setting. Fifty participants (35 patients with BPD and 15 healthy controls) underwent a negative emotion induction procedure (presentation of standardized unpleasant images). Subjective emotional responses were assessed by means of self-reported questionnaires while biological reactivity during the procedure was measured through levels of salivary cortisol (sCORT) and alphaamylase (sAA). Patients with BPD exhibited significant lower cortisol levels and higher sAA levels compared to controls. Self-reported emotional reactivity did not give rise to differences between groups but participants with BPD did present higher levels of negative emotional intensity at baseline and during the entire procedure. The findings do not give support to the emotional hyperreactivity hypothesis in BPD. However, BPD patients presented heightened negative mood intensity at baseline, which should be considered a hallmark of the disorder. Further studies using more BPD-specific emotion inductions are needed to confirm the trends observed in this study.  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