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   995篇
  免费   62篇
  国内免费   1篇
  2023年   11篇
  2022年   22篇
  2021年   30篇
  2020年   46篇
  2019年   44篇
  2018年   57篇
  2017年   52篇
  2016年   53篇
  2015年   21篇
  2014年   27篇
  2013年   90篇
  2012年   40篇
  2011年   44篇
  2010年   26篇
  2009年   22篇
  2008年   36篇
  2007年   30篇
  2006年   25篇
  2005年   35篇
  2004年   21篇
  2003年   16篇
  2002年   23篇
  2001年   6篇
  2000年   9篇
  1999年   17篇
  1997年   11篇
  1996年   7篇
  1995年   13篇
  1994年   10篇
  1993年   7篇
  1992年   7篇
  1991年   7篇
  1990年   12篇
  1989年   11篇
  1987年   6篇
  1986年   7篇
  1983年   7篇
  1982年   7篇
  1981年   6篇
  1975年   7篇
  1974年   6篇
  1973年   8篇
  1971年   9篇
  1969年   10篇
  1968年   7篇
  1966年   5篇
  1961年   5篇
  1958年   12篇
  1955年   6篇
  1953年   6篇
排序方式: 共有1058条查询结果,搜索用时 543 毫秒
901.
Despite extensive knowledge about quality of life of people suffering from dermatological diseases, data on patients with morphea are scarce. The aim of our study was to compare the quality of life of healthy controls and morphea patients, as well as to determine the correlation of this variable with the level of dispositional optimism. The study included 47 patients with morphea and 47 healthy controls, matched for gender and age. Cantril’s Ladder and Life Orientation Test-Revised were used to assess the levels of life satisfaction and dispositional optimism, respectively. LoSSI was used for the objective assessment. The anticipated level of life quality and the level of dispositional optimism were statistically significantly lower in morphea patients (p?=?0.032 and p?=?0.014, respectively) when compared to controls. There were no differences in the assessment of current (p?=?0.168) and past (p?=?0.318) levels of life quality. Also, we proved that type of morphea did not differentiate the current (p?=?0.175), past (p?=?0.620) and future (p?=?0.356) assessment of the quality of life. In the group of morphea patients there was a statistically significant correlation between the level of dispositional optimism and current (p?=?0.002, r?=?0.43), as well as anticipated (p?r?=?0.57) levels of life quality. Current level of life quality of healthy controls and morphea patients is comparable, whereas the latter anticipate their future life situation to be significantly worse than the former. Higher level of life satisfaction correlates with higher level of optimism.  相似文献   
902.
The aim of this paper is to offer an account of epistemic justification suitable for the context of theory pursuit, that is, for the context in which new scientific ideas, possibly incompatible with the already established theories, emerge and are pursued by scientists. We will frame our account paradigmatically on the basis of one of the influential systems of epistemic justification: Laurence Bonjour’s coherence theory of justification. The idea underlying our approach is to develop a set of criteria which indicate that the pursued system is promising of contributing to the epistemic goal of robustness of scientific knowledge and of developing into a candidate for acceptance. In order to realize this we will (a) adjust the scope of Bonjour’s standards—consistency, inferential density, and explanatory power, and (b) complement them by the requirement of a programmatic character. In this way we allow for the evaluation of the “potential coherence” of the given epistemic system.  相似文献   
903.
Do politically irrelevant events influence important policy opinions? Previous research on social welfare attitudes has emphasized the role of political factors such as economic self‐interest and ideology. Here, we demonstrate that attitudes to social welfare are also influenced by short‐term fluctuations in hunger. Using theories in evolutionary psychology, we predict that hungry individuals will be greedier and take more resources from others while also attempting to induce others to share by signaling cooperative intentions and expressing support for sharing, including evolutionarily novel forms of sharing such as social welfare. We test these predictions using self‐reported hunger data as well as comparisons of subjects who participated in relevant online studies before and after eating lunch. Across four studies collected in two different welfare regimes—the United Kingdom and Denmark—we consistently find that hungry individuals act in a greedier manner but describe themselves as more cooperative and express greater support for social welfare.  相似文献   
904.
905.
Although gender ideologies and perceptions of equity in the division of household tasks have been associated with marital quality, there is limited understanding of the relationship between discrepancies (in husbands’ and wives’ subjective ideals and accounts of the division of labor) and relationship quality. We examined cognitive egalitarianism (beliefs about gender roles), behavioral egalitarianism (perceptions of the division of household tasks and management), and marital quality among 220 heterosexual, newlywed couples (N?=?440) living in east and central regions of the United States. We used multi-level modeling to examine associations between cognitive egalitarianism, behavioral egalitarianism, and marital quality with a specific focus on discrepancies in the reports of husbands and wives. As hypothesized, both husbands and wives had lower marital quality when their cognitive egalitarianism was discrepant from their partner, and such a discrepancy had a greater influence on wives’ reports of marital quality, especially for wives with higher cognitive egalitarianism. Although we expected similar results for the associations between behavioral egalitarianism and marital quality, we found that the strength of the association between wives’ behavioral egalitarianism and marital quality decreased as the discrepancy from their husbands’ behavioral egalitarianism increased. The association between cognitive egalitarianism and marital quality also increased as behavioral egalitarianism increased for wives but not for husbands. The results of this study illustrate the central role of spousal discrepancy in perceptions and enactment of household labor.  相似文献   
906.
Nearly all the self‐talk cues studied so far have been self‐statements. However, the findings of Senay, Albarracin, and Noguchi suggest that interrogative self‐talk produces better task performance than declarative one. Two of the experiments reported here were meant to replicate that study, but the expected differences were not confirmed. Experiment 3 showed that if a self‐posed question about future behavior was answered positively, task performance was better than in groups exposed either to the self‐statement ‘I will do it’ or to a negative answer following the question. However, these differences occurred only in those who self‐reported the awareness of the impact of self‐talk on their thought processes. This effect and the possible reasons why between‐group differences were not found in Experiments 1 and 2 are discussed. An alternative explanation for the results of Experiment 3 is also proposed beside that stressing the impact of internal answer. Copyright © 2014 John Wiley & Sons, Ltd.  相似文献   
907.
Word-finding difficulties are usually assessed with picture-naming tests. In this article, we present the TDQ-60, a new test designed to assess acquired lexical access deficits, taking into account semantics and psycholinguistic variables. The article includes three studies. Study 1 describes the development phase of the TDQ-60. In study 2, healthy control participants and individuals with a diagnosis of the semantic variant of primary progressive aphasia were assessed to establish the convergent and discriminant validity of the TDQ-60. Finally, in Study 3, a group of 305 young and elderly French-speaking adults from Quebec were assessed in order to provide normative data. The results demonstrate that the TDQ-60 has good convergent validity and good discriminant validity. This study also provides normative data in which were considered the effect of age and education.The TDQ-60 is a new valid picture-naming test, controlled for psycholinguistic variables and designed to identify the influence of semantics on lexical access in spoken production.  相似文献   
908.
Despite increasing levels of per capita seafood consumption globally, consumption levels across the population vary with many consumers eating less than recommended weekly intakes. This study investigates the influence of childhood patterns of seafood consumption, consumer confidence in selecting and preparing seafood, adult eating habits, and lifestyle on seafood consumption. Partial least squares structural equation modelling analysis was conducted using a sample of 1,318 Australian adults. The results show that consuming seafood regularly in childhood and developing the confidence to select and prepare seafood as an adult contribute to the development of seafood eating habits. Subsequently, a habit of consuming seafood leads to a lifestyle involving regular consumption of seafood. The results indicate the need to develop and implement intervention strategies for encouraging childhood seafood consumption (“train the child”) and increasing adults' confidence in selecting and preparing seafood (“teach the adult”). Intervention strategies proposed include educational programmes targeted at both children and adults, combined with the development of seafood products that appeal to children and suit the changing lifestyle needs of today's 21st century consumers.  相似文献   
909.
This study examines the attachment quality and how this changed over time among infants who had cleft lip and palate (CLP), by conducting a prospective longitudinal study addressing the effects of this type of perinatal event on the parent–infant relationship and the emotional development of the infants. At 12 months of age, the Strange Situation Paradigm (SSP; M. Ainsworth, M.C. Blehar, E. Waters, & T. Wall, 1978) was administered to a sample of 38 CLP infants (born between 2003 and 2010) and 17 healthy controls. At 4 years of age, the Attachment Story Completion Task (ASCT; I. Bretherton, D. Ridgeway, & J. Cassidy, 1990) was administered to 32 individuals from the CLP sample and 14 from the control group. As reported in the literature, CLP infants display secure attachment behaviors as frequently as do control infants (55%). However, a more detailed analysis of the attachment scales revealed that CLP infants show more avoidance and less proximity seeking. In addition, a closer examination of the subcategories of attachment styles revealed that most CLP infants (71%) displayed distal attachment strategies such as the B1/B2 or A1/A2 subcategories. At 4 years old, CLP infants clearly displayed more deactivation and less security than did the control sample. Moreover, when detailing the evolution of attachment individually, almost 60% of the CLP children showing distal strategies at 12 months became deactivated or disorganized when they reached 4 years. Indeed, subtle differences in attachment behaviors at 12 months old—which can be considered marginally secure at that age—may reveal attachment vulnerabilities, which seem to be more apparent over the course of development.  相似文献   
910.
The aim of this study was to explore the extent to which persuasion principles are used in successful social engineering attacks. Seventy‐four scenarios were extracted from 4 books on social engineering (written by social engineers) and analysed. Each scenario was split into attack steps, containing single interactions between offender and target. For each attack step, persuasion principles were identified. The main findings are that (a) persuasion principles are often used in social engineering attacks, (b) authority (1 of the 6 persuasion principles) is used considerably more often than others, and (c) single‐principle attack steps occur more often than multiple‐principle ones. The social engineers identified in the scenarios more often used persuasion principles compared to other social influences. The scenario analysis illustrates how to exploit the human element in security. The findings support the view that security mechanisms should include not only technical but also social countermeasures.  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