全文获取类型
| 收费全文 | 2519篇 |
| 免费 | 33篇 |
专业分类
| 2552篇 |
出版年
| 2024年 | 20篇 |
| 2023年 | 39篇 |
| 2022年 | 41篇 |
| 2021年 | 53篇 |
| 2020年 | 85篇 |
| 2019年 | 110篇 |
| 2018年 | 115篇 |
| 2017年 | 150篇 |
| 2016年 | 149篇 |
| 2015年 | 94篇 |
| 2014年 | 104篇 |
| 2013年 | 289篇 |
| 2012年 | 132篇 |
| 2011年 | 131篇 |
| 2010年 | 89篇 |
| 2009年 | 73篇 |
| 2008年 | 110篇 |
| 2007年 | 114篇 |
| 2006年 | 116篇 |
| 2005年 | 78篇 |
| 2004年 | 76篇 |
| 2003年 | 61篇 |
| 2002年 | 43篇 |
| 2001年 | 32篇 |
| 2000年 | 17篇 |
| 1999年 | 22篇 |
| 1998年 | 7篇 |
| 1997年 | 12篇 |
| 1996年 | 14篇 |
| 1995年 | 15篇 |
| 1994年 | 13篇 |
| 1993年 | 13篇 |
| 1992年 | 14篇 |
| 1991年 | 7篇 |
| 1990年 | 12篇 |
| 1989年 | 7篇 |
| 1988年 | 6篇 |
| 1987年 | 6篇 |
| 1986年 | 11篇 |
| 1985年 | 6篇 |
| 1984年 | 5篇 |
| 1983年 | 5篇 |
| 1981年 | 8篇 |
| 1980年 | 4篇 |
| 1979年 | 4篇 |
| 1977年 | 4篇 |
| 1976年 | 5篇 |
| 1975年 | 4篇 |
| 1970年 | 3篇 |
| 1963年 | 3篇 |
排序方式： 共有2552条查询结果，搜索用时 0 毫秒
281.
In lay perception, dirty work is a type of labor that degrades human dignity. Work can be perceived as dirty on three bases: social (related to the subordinate position or associated with contact with stigmatized people), physical (related to direct contact with garbage and waste), and moral (related to jobs considered sinful, dubious, or defying social norms). “Dirty” stigma makes workers objects of dehumanization and discrimination, in particular, people distance themselves from dirty workers and are not ready to help and support them. In the experimental study (N = 340), we investigated how certain types of dirty workers are dehumanized compared to nondirty workers and the indirect effect of the type of dirty work on attitudes toward the social support of dirty workers via animalistic (attribution of uniquely human traits) and the mechanistic (attribution of human nature traits) dehumanization. The results show that individuals are willing to offer more social support to a low status but not dirty worker rather than to social or moral dirty workers. At the same time, less social support is provided to nondirty than to physical dirty worker. Animalistic and mechanistic dehumanization mediates the relationship between the types of dirty work and the attitudes toward social support. In particular, less dehumanization leads to more positive attitudes toward social support. The limitations and future directions of the obtained results are discussed. 相似文献
282.
Careen S. Meyer Maria Clara Cordeiro Caio F. Miguel 《Journal of the experimental analysis of behavior》2019,112(2):144-166
We evaluated the effects of listener training on the emergence of analogical reasoning, as measured via equivalence‐equivalence and explored the role of verbal behavior when solving analogy‐type tasks. We taught 18 college students to select component stimuli from 2 classes, labeled “vek” and “zog,” and evaluated tacts and relational responding in the presence of baseline (AB and BC), symmetry (BA and CB), and transitivity (AC and CA) compounds. In Experiment 1, 5 out of 6 participants passed analogy tests, but none of them engaged in the relational tacts “same” and “different” during tact tests, possibly due to lack of instructional control. A change in instructions during Experiment 2 produced relational tacts in 4 of 6 participants, and 5 participants passed analogy tests. In Experiment 3, we implemented a talk‐aloud procedure to determine if the participants were emitting relational tacts during analogy tests. All 6 participants tacted stimuli relationally and engaged in problem‐solving statements to solve analogy tests. Results from these studies suggest that listener and speaker behavior in the form of relational tacts and other problem‐solving statements influenced the participants' equivalence–equivalence performance. 相似文献
283.
284.
Caterina Primi Maria Anna Donati Francesca Chiesi Kinga Morsanyi 《Thinking & reasoning》2018,24(2):258-279
ABSTRACTCognitive reflection is recognized as an important skill, which is necessary for making advantageous decisions. Even though gender differences in the Cognitive Reflection test (CRT) appear to be robust across multiple studies, little research has examined the source of the gender gap in performance. In Study 1, we tested the invariance of the scale across genders. In Study 2, we investigated the role of math anxiety, mathematical reasoning, and gender in CRT performance. The results attested the measurement equivalence of the Cognitive Reflection Test – Long (CRT- L), when administered to male and female students. Additionally, the results of the mediation analysis showed an indirect effect of gender on CRT-L performance through mathematical reasoning and math anxiety. The direct effect of gender was no longer statistically significant after accounting for the other variables. The current findings suggest that cognitive reflection is affected by numerical skills and related feelings. 相似文献
285.
Saara Nolvi Henna‐Maria Uusitupa David J. Bridgett Henri Pesonen Anna‐Katariina Aatsinki Eeva‐Leena Kataja Riikka Korja Hasse Karlsson Linnea Karlsson 《Developmental science》2018,21(4)
Little consideration has been given to the possibility of human infant development being shaped via lactocrine programming, and by breast milk cortisol levels specifically. Despite animal models indicating that glucocorticoid (GC) exposure via lactation might modify brain development and behavior, only one study has reported that milk cortisol levels were positively associated with infant negative affectivity, especially fearfulness and sadness—early emerging risk factors for internalizing difficulties such as anxiety. The aim of the current study was to investigate whether human milk cortisol is associated with mother‐reported fearfulness and experimentally induced infant fear reactivity. Mother‐infant dyads (n = 65) enrolled in the FinnBrain Cohort Study participated. Breast milk samples were obtained 2.5 months postpartum, and milk cortisol concentrations were ascertained using validated luminescence immunoassay methodology. Infant fear reactivity was assessed using maternal reports 6 months postpartum and in a laboratory 8 months postpartum. There was a significant interaction between infant sex and milk cortisol such that higher milk cortisol was related to higher infant fear reactivity in a laboratory setting in girls (β = 0.36, p = .04) but not in boys (β = ?0.15, p = .40). Milk cortisol was not associated with mother‐reported infant fearfulness. Results suggest that higher human milk cortisol concentrations are associated with elevated experimentally induced fear in infancy. Findings support lactocrine programming, and suggest that mothers may “communicate” vital information about stressful environments via cortisol contained in breast milk, shaping girls' early emotional reactivity. 相似文献
286.
Laurence Steinberg Grace Icenogle Elizabeth P. Shulman Kaitlyn Breiner Jason Chein Dario Bacchini Lei Chang Nandita Chaudhary Laura Di Giunta Kenneth A. Dodge Kostas A. Fanti Jennifer E. Lansford Patrick S. Malone Paul Oburu Concetta Pastorelli Ann T. Skinner Emma Sorbring Sombat Tapanya Liliana Maria Uribe Tirado Liane Peña Alampay Suha M. Al‐Hassan Hanan M. S. Takash 《Developmental science》2018,21(2)
The dual systems model of adolescent risk‐taking portrays the period as one characterized by a combination of heightened sensation seeking and still‐maturing self‐regulation, but most tests of this model have been conducted in the United States or Western Europe. In the present study, these propositions are tested in an international sample of more than 5000 individuals between ages 10 and 30 years from 11 countries in Africa, Asia, Europe and the Americas, using a multi‐method test battery that includes both self‐report and performance‐based measures of both constructs. Consistent with the dual systems model, sensation seeking increased between preadolescence and late adolescence, peaked at age 19, and declined thereafter, whereas self‐regulation increased steadily from preadolescence into young adulthood, reaching a plateau between ages 23 and 26. Although there were some variations in the magnitude of the observed age trends, the developmental patterns were largely similar across countries. 相似文献
287.
Ilaria Buonomo Caterina Fiorilli Maria Angela Geraci Alessandro Pepe 《The Journal of genetic psychology》2017,178(3):193-206
The authors compared the relations between general psychological difficulties and dimensions of temperament in children with and without learning disability (LD). The main aim was to analyze whether and to what extent children's temperament dimensions contribute to their general psychological difficulties when LD diagnosis, age, and gender are taken into account. Participants were 52 elementary school children 7–11 years old (M age = 8.61 years, SD = 1.21 years). Twenty-six of them had been diagnosed with LD. Six teachers rated their pupils with and without LD in relation to their general psychological difficulties (Strengths and Difficulties Questionnaire) and temperament dimensions (Italian Questionnaires of Temperament). In children with LD, the main dimensions of temperament with the power to predict general psychological difficulties (i.e., emotionality and social orientation) concern these students' relationships with others (teachers and peers). The findings of the current study draw educators' and practitioners' attention to the fact that children's temperamental characteristics may affect how they experience their LD, with significant implications for their later social adjustment. 相似文献
288.
Stephanie A. Moberg Rowena Ng Dana E. Johnson Maria G. Kroupina 《Infant mental health journal》2017,38(5):575-587
Internationally adopted (IA) children have often experienced early adversity and are at risk for long‐term deficiencies in multiple developmental domains. This study examined the association between IA children's joint attention (JA) soon after arrival and later cognitive, communicative, and socioemotional competency 6 months’ postadoption. We expected a child's initial JA would positively predict later cognitive, communication, and social ability. IA children (n = 63) adopted from Eastern Europe were seen soon after their arrival into the United States to assess their JA. Their socioemotional competency, social communication, and cognitive abilities were measured at a follow‐up session 6 months’ postadoption. We found that higher order JA was positively associated with measures of social relatedness. Furthermore, individual hierarchical regressions of each measure of JA (higher order JA, initiating JA, responding to JA, and initiating behavior requests [BR]) considered with age‐at‐adoption showed that each measure was an independent and positive predictor of Mullen outcomes in the receptive and expressive language domains. These results suggest that JA may be a sensitive predictor of subsequent functioning in the social, communicative, and cognitive domains. Thus, assessing JA soon after arrival has the potential to identify at‐risk IA children, and interventions targeting JA may support those children in overcoming the negative impacts of early adversity. 相似文献
289.
Black Mountain College is remembered as an artistic utopian alternative to institutional learning. Its faculty and students included some of the most important creative thinkers of the 20th century. Its foundation was built on the philosophy of “learning by doing.” But what made Black Mountain such a dynamic educational environment? Today, the financial burden of higher education places a lasting strain on students that inhibits creative growth. Does the educational structure of the college system impede our learning? Black Mountain was a legendary educational experiment, which offers a model for contemporary art education. 相似文献
290.