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   609篇
  免费   49篇
  国内免费   1篇
  2023年   4篇
  2022年   2篇
  2021年   14篇
  2020年   21篇
  2019年   28篇
  2018年   35篇
  2017年   30篇
  2016年   27篇
  2015年   26篇
  2014年   30篇
  2013年   70篇
  2012年   32篇
  2011年   32篇
  2010年   38篇
  2009年   38篇
  2008年   26篇
  2007年   20篇
  2006年   19篇
  2005年   18篇
  2004年   15篇
  2003年   14篇
  2002年   12篇
  2001年   6篇
  2000年   5篇
  1999年   5篇
  1998年   5篇
  1997年   3篇
  1996年   4篇
  1995年   2篇
  1994年   4篇
  1993年   3篇
  1992年   2篇
  1991年   4篇
  1990年   5篇
  1989年   4篇
  1987年   2篇
  1986年   3篇
  1985年   3篇
  1983年   3篇
  1981年   5篇
  1980年   3篇
  1979年   2篇
  1977年   3篇
  1976年   3篇
  1975年   3篇
  1974年   2篇
  1972年   2篇
  1969年   2篇
  1967年   2篇
  1964年   3篇
排序方式: 共有659条查询结果,搜索用时 15 毫秒
171.
absence is the claim that, if a symbol appears on a map, then absence of the symbol from some map coordinate signifies absence of the corresponding property from the corresponding location. This claim is highly intuitive and widely endorsed. And if it is true, then cartographic representation is strikingly different from linguistic representation. I argue, however, that absence is false of various maps and that we have no reason to believe it is true of any maps. The intuition to the contrary results from mistaking what a map simply conveys for what it literally represents.  相似文献   
172.
This paper first offers a standard modal extension of dialetheic logics that respect the normal semantics for negation and conjunction, in an attempt to adequately model absolutism, the thesis that there are true contradictions at metaphysically possible worlds. It is shown, however, that the modal extension has unsavoury consequences for both absolutism and dialetheism. While the logic commits the absolutist to dialetheism, it commits the dialetheist to the impossibility of the actual world. A new modal logic AV is then proposed which avoids these unsavoury consequences by invalidating the interdefinability rules for the modal operators with the use of two valuation relations. However, while using AV carries no significant cost for the absolutist, the same isn't true for the dialetheist. Although using AV allows her to avoid the consequence that the actual world is an impossible world, it does so only on the condition that the dialetheist admits that she cannot give a dialetheic solution to all self-referential semantic paradoxes. Thus, unless there are any further available modal logics that don't commit her to the impossibility of the actual world, the dialetheist is faced with a dilemma. Either admit that the actual world is an impossible world, or admit that her research programme cannot give a comprehensive solution to the self-referential paradoxes.  相似文献   
173.
Many generativist accounts (e.g., Wexler, 1998) argue for very early knowledge of inflection on the basis of very low rates of person/number marking errors in young children's speech. However, studies of Spanish (Aguado‐Orea & Pine, 2015) and Brazilian Portuguese (Rubino & Pine, 1998) have revealed that these low overall error rates actually hide important differences across the verb paradigm. The present study investigated children's production of person/number marked verbs by eliciting present tense verb forms from 82 native Finnish‐speaking children aged 2;2–4;8 years. Four main findings were observed: (a) Rates of person/number marking errors were higher in low‐frequency person/number contexts, even excluding children who showed no evidence of having learned the relevant morpheme, (b) most errors involved the use of higher frequency forms in lower frequency person/number contexts, (c) error rates were predicted not only by the frequency of person/number contexts (e.g., 3sg > 2pl) but also by the frequency of individual “ready‐inflected” lexical target forms, and (d) for low‐frequency verbs, lower error rates were observed for verbs with high phonological neighborhood density. It is concluded that any successful account of the development of verb inflection will need to incorporate both (a) rote‐storage and retrieval of individual inflected forms and (b) phonological analogy across them.  相似文献   
174.
The imbalance between need and available resources with respect to youth mental ill-health has encouraged a growing body of literature around technology to support existing face-to-face services. However, this literature has not adequately investigated the perspective of youth as consumers and no data exists on the views of rural youth. In response to this gap, in-depth qualitative study investigated the perspectives of rural youth who were currently seeking help at a mental health service. Semi-structured interviews were carried out with a clinical sample of 10 young people (5 female), aged 16–22 years. Participants were recruited from two different mental health services located in two rural South Australian regions. Data were analysed via inductive thematic analysis. Results highlighted a young person’s desire for self-determination around their health and help-seeking within a service current environment that systematically subverts it. Overall, participants had long and complex histories of help-seeking associated with a history of isolation, disadvantage and trauma. A strong need for personal connection in the context of help-seeking was evident. Preferences for, and actual use of, the internet for mental healthcare existed on a continuum from no current (or future desire) to use technologies through to active interest in, and current use of, technologies as an adjunct to face-to-face care. Limited financial and infrastructural resourcing made it more difficult to access help online. Understanding and actively seeking out these views in design and implementation of technologies is in line with the current shift toward more consumer-focused and inclusive service design and delivery.  相似文献   
175.
The relations among dimensions of subjective well-being (i.e., happiness and life satisfaction), spirituality and religiousness were assessed in children (aged 7–12, n = 391) and adolescents (aged 13–19, n = 902) in Zambia. These participants were sampled from schools in both urban and rural regions that represented a relatively wide range of affluence. Participants self-reported their happiness using the Faces Scale and the Subjective Happiness Scale, and their life satisfaction using the Student Life Satisfaction Scale. The surveys were available in English as well as two local languages, and were delivered in classroom settings. To assess religiosity, participants were asked about the frequency that they attended church and about the importance of religion in their life. To assess spirituality, participants were asked about whether they considered themselves to be a spiritual person and about the nature domain of spirituality (e.g., “I feel connected to nature”). Results indicated that age, gender, grade and religiosity were not strong predictors of children’s well-being. However, spirituality accounted for 21 % of the variance in life satisfaction beyond these demographic variables and religiosity, but did not account for additional variance in happiness. The results were similar for adolescents except that the demographic variables were weakly predictive of their life satisfaction, and religiosity was a modest predictor of their happiness. Spirituality predicted variance in happiness and life satisfaction more so among adolescents than among children. These results confirm earlier work showing that spirituality, but not necessarily religiosity, is associated with children’s and adolescents’ well-being.  相似文献   
176.
Understanding subjective wellbeing (SWB) at the population level has major implications for governments and policy makers concerned with enhancing the life quality of citizens. The Personal Wellbeing Index (PWI) is a measure of SWB with theoretical and empirical credentials. Homeostasis theory offers an explanation for the nature of SWB data, including the distribution of scores, maintenance and change over time. According to this theory, under normal conditions, the dominant constituent of SWB is Homeostatically Protected Mood (HPMood), which is held within a genetically determined range of values around a set-point. However, in extreme circumstances (e.g., financial hardship, chronic illness), HPMood may dissociate from SWB, as cognitive/emotional reactions to the cause of homeostatic challenge assume control over SWB. This study investigates two groups as people scoring in the positive range for SWB and people who are likely to be experiencing homeostatic defeat/challenge. We test whether the reduced influence of HPMood on SWB due to homeostatic defeat has implications for the validity of SWB measurement. Participants were 45,192 adults (52 % female), with a mean age of 48.88 years (SD = 17.35 years), who participated in the first 23 surveys of the Australian Unity Wellbeing Index over the years 2001–2010. Multiple regression analysis, multiple group confirmatory factor analysis, and Rasch modelling techniques were used to evaluate the psychometric performance of the PWI across the two groups. Results show that while the PWI functioned as intended for the normal group, SWB in the challenged group was lower across all PWI domains, more variable, and the domain scores lacked the strength of inter-correlation observed in the normal, comparison group. These changes are consistent with predictions based on homeostasis theory and one major implication of the findings is that SWB measures may not function equivalently across the entire spectrum of possible domain satisfaction scores.  相似文献   
177.
Cognitive Processing - Human self-domestication might have contributed to the evolutionary changes in the hippocampus accounting for our enhanced mental travel abilities, and ultimately for our...  相似文献   
178.
Previous studies have shown inconsistent findings regarding the contribution of the different prefrontal regions in emotion recognition. Moreover, the hemispheric lateralization hypothesis posits that the right hemisphere is dominant for processing all emotions regardless of affective valence, whereas the valence specificity hypothesis posits that the left hemisphere is specialized for processing positive emotions while the right hemisphere is specialized for negative emotions. However, recent findings suggest that the evidence for such lateralization has been less consistent. In this study, we investigated emotion recognition of fear, surprise, happiness, sadness, disgust, and anger in 30 patients with focal prefrontal cortex lesions and 30 control subjects. We also examined the impact of lesion laterality on recognition of the six basic emotions. The results showed that compared to control subjects, the frontal subgroups were impaired in recognition of three negative basic emotions of fear, sadness, and anger – regardless of the lesion laterality. Therefore, our findings did not establish that each hemisphere is specialized for processing specific emotions. Moreover, the voxel-based lesion symptom mapping analysis showed that recognition of fear, sadness, and anger draws on a partially common bilaterally distributed prefrontal network.  相似文献   
179.
Many believe that intended harms are more difficult to justify than are harms that result as a foreseen side effect of one's conduct. We describe cases of harming in which the harm is not intended, yet the harmful act nevertheless runs afoul of the intuitive moral constraint that governs intended harms. We note that these cases provide new and improved counterexamples to the so-called Simple View, according to which intentionally phi-ing requires intending to phi. We then give a new theory of the moral relevance of intention. This theory yields the traditional constraint on intending harm as a special case, along with several stronger demands.  相似文献   
180.
Ambridge B  Pine JM  Rowland CF 《Cognition》2012,123(2):260-279
The present study investigated how children learn that some verbs may appear in the figure-locative but not the ground-locative construction (e.g., Lisa poured water into the cup; *Lisa poured the cup with water), with some showing the opposite pattern (e.g., *Bart filled water into the cup; Bart filled the cup with water), and others appearing in both (Lisa sprayed water onto the flowers; Lisa sprayed the flowers with water). Grammatical acceptability judgments were obtained for the use of each of 142 locative verbs (60 for children) in each sentence type. Overall, and for each age group individually, the judgment data were best explained by a model that included ratings of the extent to which each verb exhibits both the broad- and narrow-range semantic properties of the figure- and ground-locative constructions (relating mainly to manner and end-state respectively; Pinker, 1989) and the statistical-learning measure of overall verb frequency (entrenchment; Braine & Brooks, 1995). A second statistical-learning measure, frequency in each of the two locative constructions (pre-emption; Goldberg, 1995), was found to have no additional dissociable effect. We conclude by drawing together various theoretical proposals to arrive at a possible account of how semantics and statistics interact in the retreat from overgeneralization.  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