全文获取类型
收费全文 | 3190篇 |
免费 | 186篇 |
出版年
2024年 | 7篇 |
2023年 | 56篇 |
2022年 | 50篇 |
2021年 | 71篇 |
2020年 | 103篇 |
2019年 | 100篇 |
2018年 | 171篇 |
2017年 | 177篇 |
2016年 | 169篇 |
2015年 | 97篇 |
2014年 | 117篇 |
2013年 | 399篇 |
2012年 | 247篇 |
2011年 | 269篇 |
2010年 | 160篇 |
2009年 | 62篇 |
2008年 | 221篇 |
2007年 | 158篇 |
2006年 | 178篇 |
2005年 | 101篇 |
2004年 | 80篇 |
2003年 | 60篇 |
2002年 | 63篇 |
2001年 | 17篇 |
2000年 | 42篇 |
1999年 | 26篇 |
1998年 | 15篇 |
1997年 | 13篇 |
1996年 | 12篇 |
1994年 | 9篇 |
1993年 | 10篇 |
1992年 | 10篇 |
1991年 | 13篇 |
1990年 | 15篇 |
1989年 | 12篇 |
1988年 | 7篇 |
1987年 | 7篇 |
1986年 | 2篇 |
1985年 | 6篇 |
1984年 | 3篇 |
1983年 | 4篇 |
1981年 | 4篇 |
1978年 | 5篇 |
1976年 | 2篇 |
1974年 | 5篇 |
1973年 | 2篇 |
1971年 | 4篇 |
1968年 | 2篇 |
1966年 | 3篇 |
1965年 | 2篇 |
排序方式: 共有3376条查询结果,搜索用时 0 毫秒
131.
We propose a new class of multiple contraction operations — the system of spheres-based multiple contractions — which are a generalization of Grove’s system of spheres-based (singleton) contractions to the case of contractions by (possibly
non-singleton) sets of sentences. Furthermore, we show that this new class of functions is a subclass of the class of the
partial meet multiple contractions. 相似文献
132.
Marcelo A. Falappa Gabriele Kern-Isberner Maurício D. L. Reis Guillermo R. Simari 《Journal of Philosophical Logic》2012,41(1):77-113
In this article we explore multiple change operators, i.e., operators in which the epistemic input is a set of sentences instead
of a single sentence. We propose two types of change: prioritized change, in which the input set is fully accepted, and symmetric
change, where both the epistemic state and the epistemic input are equally treated. In both kinds of operators we propose
a set of postulates and we present different constructions: kernel changes and partial meet changes. 相似文献
133.
Penelo E Granero R Fernández-Aranda F Aymamí N Gómez-Peña M Moragas L Santamaría JJ Custal N Menchón JM Jiménez-Murcia S 《Psychological reports》2012,110(2):555-570
The study compared clinical, psychopathological, and personality profiles between immigrants and Spanish native-born pathological gambling patients. A total of 1,601 native-born and 133 immigrant patients attending treatment at a specialized hospital unit were administered a battery of questionnaires during clinical assessment. Outcome measures were compared between both groups and the incremental predictive accuracy of the area of origin was examined using a regression model. Native-born Spaniards showed a mean 2.6 yr. greater duration of the disorder, while immigrants scored higher on South Oaks Gambling Screen, frequency of going to casinos, and total money spent (in a single day and/or to recover losses). General psychopathology and personality scores did not differ between the cohorts. However, immigration from Asia had a statistically significantly incremental validity for pathological gambling in South Oaks Gambling Screen scores. Both cohorts shared more similarities than differences in their gambling profiles. 相似文献
134.
135.
Jonathan Brennan Yuval NirUri Hasson Rafael MalachDavid J. Heeger Liina Pylkkänen 《Brain and language》2012,120(2):163-173
The neural basis of syntax is a matter of substantial debate. In particular, the inferior frontal gyrus (IFG), or Broca’s area, has been prominently linked to syntactic processing, but the anterior temporal lobe has been reported to be activated instead of IFG when manipulating the presence of syntactic structure. These findings are difficult to reconcile because they rely on different laboratory tasks which tap into distinct computations, and may only indirectly relate to natural sentence processing. Here we assessed neural correlates of syntactic structure building in natural language comprehension, free from artificial task demands. Subjects passively listened to Alice in Wonderland during functional magnetic resonance imaging and we correlated brain activity with a word-by-word measure of the amount syntactic structure analyzed. Syntactic structure building correlated with activity in the left anterior temporal lobe, but there was no evidence for a correlation between syntactic structure building and activity in inferior frontal areas. Our results suggest that the anterior temporal lobe computes syntactic structure under natural conditions. 相似文献
136.
Kamienkowski JE Navajas J Sigman M 《Journal of experimental psychology. Human perception and performance》2012,38(3):555-560
When presented with a sequence of visual stimuli in rapid succession, participants often fail to detect a second salient target, a phenomenon referred as the attentional blink (AB; Raymond, Shapiro, & Arnell, 1992; Shapiro, Raymond, & Arnell, 1997). On the basis of a vast corpus of experiments, several cognitive theories suggest that the blink results from a discrete structuring of attention, sampling information from temporal episodes during which several items can access encoding process (Wyble, Bowman, & Nieuwenstein, 2009; Wyble, Potter, Bowman, & Nieuwenstein, 2011). The objective of this work is to explore the AB when multiple items are presented at the fovea during ocular movements. The authors reasoned that each fixation may cohesively form an episode and hence expected that the blink may vanish within a single fixation. In turn, they expected saccades to accentuate episodic borders and hence shorten the regime of interference when 2 targets are presented fovealy in successive fixations. Evidence is provided in favor of this hypothesis, showing that the blink vanishes when both targets are presented in the core of a single fixation (far from the saccadic boundaries) and that it recovers more rapidly in successive fixations. These studies support current views that episodes should have an effect on the AB and provide evidence that eye movements play an important role in the formation of episodes. 相似文献
137.
We question the plausibility of Fincher & Thornhill's (F&T's) argument that localised pathogen-host coevolution leads to out-groups having pathogens more damaging than those infecting one's own family or religious group. 相似文献
138.
This work examines whether a positive personality trait, such as optimism, can reduce bias in differential words recalled after inducing a certain emotion. After showing a list of words with various emotional valences to a group of 59 subjects, a specific emotional state was induced. Subsequently, the subjects were asked to recall the list of words. The results obtained indicated that less optimistic subjects had a tendency to recall and recognize a greater number of negative words when in a negative emotional condition. Statistical significance was reached in the female group's negative word recognition when experiencing negative emotion. 相似文献
139.
The present research focuses on the study of behavioral effects of non-conscious activation of categories among outgroup (young people) and ingroup members (elderly people). Specifically, non-conscious activation of labels that designate the same group, but with different valence (old vs. elderly), showed an effect on a behavior not directly related to interaction with elderly. The first study with young individuals (N= 62) shows that, after non-conscious activation of a negative label (old), participants displayed longer RTs in the first phase of the task than in the case of positive label (elderly) priming. The second study (N= 40), performed with elderly people, shows a similar result, after non-conscious activation of a negative label (old), elderly people showed longer RTs in the first phase of the task, compared with the group in the non-conscious positive label activation condition. Results concerning the theoretical and practical implications are discussed. 相似文献
140.
Alonso-Geta PM 《Psicothema》2012,24(3):371-376
The aim of this paper was to establish which parenting style of Spanish families is associated with optimum children's outcomes. A random Spanish sample of 1,103 parents of children and teenagers from 6 to 14 years of age, of whom 47% were females, reported on their child-rearing practices. Families were classified into 1 of 4 groups (authoritative, authoritarian, indulgent, or neglectful) based on the parents' answers. Socialization outcomes were 6 indicators of interpersonal relationship quality, 9 indicators of psychological adjustment, 7 indicators of personal competence, and 12 indicators of behavior problems. Results showed that indulgent and authoritative parenting styles were associated with better outcomes than authoritarian and neglectful parenting. Overall, our results supported the idea that, in Spain, the optimum parenting style is the indulgent one, as scores in the four sets of socialization outcomes among children and teenagers from indulgent families were always equal to, or even better than, the authoritative parenting style. 相似文献