全文获取类型
收费全文 | 3147篇 |
免费 | 187篇 |
专业分类
3334篇 |
出版年
2024年 | 7篇 |
2023年 | 55篇 |
2022年 | 50篇 |
2021年 | 68篇 |
2020年 | 103篇 |
2019年 | 103篇 |
2018年 | 169篇 |
2017年 | 174篇 |
2016年 | 166篇 |
2015年 | 95篇 |
2014年 | 121篇 |
2013年 | 406篇 |
2012年 | 240篇 |
2011年 | 270篇 |
2010年 | 162篇 |
2009年 | 65篇 |
2008年 | 218篇 |
2007年 | 157篇 |
2006年 | 171篇 |
2005年 | 99篇 |
2004年 | 77篇 |
2003年 | 58篇 |
2002年 | 57篇 |
2001年 | 18篇 |
2000年 | 42篇 |
1999年 | 26篇 |
1998年 | 13篇 |
1997年 | 15篇 |
1996年 | 10篇 |
1994年 | 8篇 |
1993年 | 8篇 |
1992年 | 9篇 |
1991年 | 12篇 |
1990年 | 14篇 |
1989年 | 11篇 |
1988年 | 7篇 |
1987年 | 7篇 |
1985年 | 5篇 |
1984年 | 3篇 |
1983年 | 4篇 |
1982年 | 2篇 |
1981年 | 2篇 |
1978年 | 4篇 |
1976年 | 2篇 |
1974年 | 4篇 |
1973年 | 2篇 |
1971年 | 2篇 |
1968年 | 2篇 |
1966年 | 3篇 |
1965年 | 2篇 |
排序方式: 共有3334条查询结果,搜索用时 15 毫秒
911.
María Elena Oliveri Kadriye Ercikan Bruno D. Zumbo René Lawless 《International Journal of Testing》2014,14(3):265-287
In this study, we contrast results from two differential item functioning (DIF) approaches (manifest and latent class) by the number of items and sources of items identified as DIF using data from an international reading assessment. The latter approach yielded three latent classes, presenting evidence of heterogeneity in examinee response patterns. It also yielded more DIF items with larger effect sizes and more consistent item response patterns by substantive aspects (e.g., reading comprehension processes and cognitive complexity of items). Based on our findings, we suggest empirically evaluating the homogeneity assumption in international assessments because international populations cannot be assumed to have homogeneous item response patterns. Otherwise, differences in response patterns within these populations may be under-detected when conducting manifest DIF analyses. Detecting differences in item responses across international examinee populations has implications on the generalizability and meaningfulness of DIF findings as they apply to heterogeneous examinee subgroups. 相似文献
912.
José A. Hinojosa Jacobo Albert Uxía Fernández-Folgueiras Gerardo Santaniello Cristina López-Bachiller Manuel Sebastián Alberto J. Sánchez-Carmona Miguel A. Pozo 《Cognitive, affective & behavioral neuroscience》2014,14(4):1286-1299
Previous research on emotion in language has mainly concerned the impact of emotional information on several aspects of lexico-semantic analyses of single words. However, affective influences on morphosyntactic processing are less understood. In the present study, we focused on the impact of negative valence in the processing of gender agreement relations. Event-related potentials (ERPs) were recorded while participants read three-word phrases and performed a syntactic judgment task. Negative and neutral adjectives could agree or disagree in gender with the preceding noun. At an electrophysiological level, the amplitude of a left anterior negativity (LAN) to gender agreement mismatches decreased in negative words, relative to neutral words. The behavioral data suggested that LAN amplitudes might be indexing the processing costs associated with the detection of gender agreement errors, since the detection of gender mismatches resulted in faster and more accurate responses than did the detection of correct gender agreement relations. According to this view, it seems that negative content facilitated the processes implicated in the early detection of gender agreement mismatches. However, gender agreement violations in negative words triggered processes involved in the reanalysis and repair of the syntactic structure, as reflected in larger P600 amplitudes to incorrect than to correct phrases, irrespective of their emotional valence. 相似文献
913.
George A. Michael Raphaël Mizzi Cyril Couffe Germán Gálvez-García 《Cognitive, affective & behavioral neuroscience》2014,14(3):1026-1040
Cognitive and neural models have proposed the existence of a single inhibitory process that regulates behavior and depends on the right frontal operculum (rFO). The aim of this study was to make a contribution to the ongoing debate as to whether inhibition is a single process or is composed of multiple, independent processes. Here, within a single paradigm, we assessed the links between two inhibitory phenomena—namely, resistance to involuntary visual capture by abrupt onsets and resolving of spatial stimulus–response conflict. We did so by conducting three experiments, two involving healthy volunteers (Exps. 1 and 3), and one with the help of a well-documented patient, R.J., with selectively weakened inhibition following a lesion of the rFO. The results suggest that resistance to capture and stimulus–response conflict are independent, because (a) additive effects were found (Exps. 1 and 3), (b) capture did not correlate with compatibility effects (Exp. 1), (c) dual tasking affected the two phenomena differently (Exp. 3), and (d) a dissociation was found between the two in patient R.J. (Exp. 2). However, the results also show that these two phenomena may share some processing components, given that (a) both were affected in patient R.J., but to different degrees (Exp. 2), and (b) increasing the difficulty of dual tasking produced an increasingly negative correlation between capture and compatibility (Exp. 3), which suggests that when resources are withdrawn from the control of the former, they are used to control the latter. 相似文献
914.
915.
Ana Paula Soares José Carlos Medeiros Alberto Simões João Machado Ana Costa Álvaro Iriarte José João de Almeida Ana P. Pinheiro Montserrat Comesaña 《Behavior research methods》2014,46(1):240-253
In this article, we introduce ESCOLEX, the first European Portuguese children’s lexical database with grade-level-adjusted word frequency statistics. Computed from a 3.2-million-word corpus, ESCOLEX provides 48,381 word forms extracted from 171 elementary and middle school textbooks for 6- to 11-year-old children attending the first six grades in the Portuguese educational system. Like other children’s grade-level databases (e.g., Carroll, Davies, & Richman, 1971; Corral, Ferrero, & Goikoetxea, Behavior Research Methods, 41, 1009–1017, 2009; Lété, Sprenger-Charolles, & Colé, Behavior Research Methods, Instruments, & Computers, 36, 156–166, 2004; Zeno, Ivens, Millard, Duvvuri, 1995), ESCOLEX provides four frequency indices for each grade: overall word frequency (F), index of dispersion across the selected textbooks (D), estimated frequency per million words (U), and standard frequency index (SFI). It also provides a new measure, contextual diversity (CD). In addition, the number of letters in the word and its part(s) of speech, number of syllables, syllable structure, and adult frequencies taken from P-PAL (a European Portuguese corpus-based lexical database; Soares, Comesaña, Iriarte, Almeida, Simões, Costa, …, Machado, 2010; Soares, Iriarte, Almeida, Simões, Costa, França, …, Comesaña, in press) are provided. ESCOLEX will be a useful tool both for researchers interested in language processing and development and for professionals in need of verbal materials adjusted to children’s developmental stages. ESCOLEX can be downloaded along with this article or from http://p-pal.di.uminho.pt/about/databases. 相似文献
916.
Iván Márquez-Rodas Sara López-Tarruella Yolanda Jerez Mercedes Cavanagh Sara Custodio Daniel López-Trabada Beatriz Moya Sara Pérez Ana B. Rupérez Miguel Martín 《Journal of genetic counseling》2014,23(1):108-113
A comprehensive family history is essential to identify patients at risk for hereditary cancer who could benefit from genetic counseling (GC). In a previous study, we observed a low occurrence of family history record (FHR) collection rate and GC referral among oncologists at our institution. The present work analyzes whether the implementation of a heredofamilial cancer unit (HFCU) would improve these parameters. We retrospectively compared the FHR rate in clinical records, National Cancer Institute (NCI) general criteria for hereditary cancer suspicion, GC referrals and FHR quality in two cohorts: cohort 1 (patients diagnosed before HFCU creation) and cohort 2 (after HFCU creation). Of 1,175 patients (590 cohort 1 and 585 cohort 2), FHRs were consigned in 27.3 % and 52.5 % of patients, respectively (p?<?0.001). The GC referral of patients with any NCI criterion was 13.6 % xin cohort 1 vs. 40.5 % in cohort 2 (p?<?0.001). FHR quality improved in terms of the total number of relatives (164 vs. 314, p?=?0.1, N.S.) and number of healthy relatives consigned (80 vs. 191, p?<?0.01). Nine mutations (6 BRCA, 1 MEN1, 2 Lynch), 4 unknown significance variants (all in BRCA) and 2 with no mutation were identified among patients referred from cohort 2. We conclude that the creation of a heredofamilial cancer unit has changed both FHR and GC referrals among oncologists at our institution, although continuous educational efforts are required. 相似文献
917.
Tara J. Schmidlen Lisa Wawak Rachel Kasper J. Felipe García-España Michael F. Christman Erynn S. Gordon 《Journal of genetic counseling》2014,23(4):578-587
Use of genomic information in healthcare is increasing; however data on the needs of consumers of genomic information is limited. The Coriell Personalized Medicine Collaborative (CPMC) is a longitudinal study investigating the utility of personalized medicine. Participants receive results reflecting risk of common complex conditions and drug—gene pairs deemed actionable by an external review board. To explore the needs of individuals receiving genomic information we reviewed all genetic counseling sessions with CPMC participants. A retrospective qualitative review of notes from 157 genetic counseling inquiries was conducted. Notes were coded for salient themes. Five primary themes; “understanding risk”, “basic genetics”, “complex disease genetics”, “what do I do now?” and “other” were identified. Further review revealed that participants had difficulty with basic genetic concepts, confused relative and absolute risks, and attributed too high a risk burden to individual single nucleotide polymorphisms (SNPs). Despite these hurdles, counseled participants recognized that behavior changes could potentially mitigate risk and there were few comments alluding to an overly deterministic or fatalistic interpretation of results. Participants appeared to recognize the multifactorial nature of the diseases for which results were provided; however education to understand the complexities of genomic risk information was often needed. 相似文献
918.
Ana Isabel Pereira Luisa Barros Denisa Mendonça Peter Muris 《Journal of child and family studies》2014,23(2):399-409
Theoretical models have emphasized the roles played by parental anxiety and behavior in the development of childhood anxiety problems. Little is known regarding the differential impacts of mothers and fathers or regarding the processes that mediate these influences. The present study examines the relationships between maternal and paternal trait anxiety, overprotection, and emotional support on the one hand and anxiety symptoms in children on the other hand. This study also explores the mediating role of children’s cognitive vulnerabilities to anxiety disorders in the relationship between parental variables and children’s anxiety. A sample of 80 children and their parents (fathers and mothers), selected from an initial screening of 905 school-aged children, participated in this study. The results indicate that both parents had unique influences on children’s anxiety symptoms: maternal trait anxiety and paternal overprotection and concern were found to independently and positively contribute to children’s anxiety. Furthermore, children’s interpretative biases mediated the relation between maternal trait anxiety and children’s anxiety symptoms. The results of this study underline the importance of considering both paternal and maternal factors in the development of children’s anxiety problems. These findings also have implications for theoretical models of the etiology of anxiety and for the treatment of these problems in children. 相似文献
919.
Francisco Javier López Frías 《Sport, Ethics and Philosophy》2014,8(2):157-171
Several authors, such as William J. Morgan, John S. Russell and R. Scott Kretchmar, have claimed that the limits between the diverse normative theories of sport need to be revisited. Most of these works are philosophically grounded in Anglo-American philosophical approaches. For instance, William J. Morgan’s proposal is mainly based on Richard Rorty’s philosophy. But he also discusses with some European philosophers like Jürgen Habermas. However, Habermas’ central ideas are rejected by Morgan. The purpose of this paper is to analyse Morgan’s rejection of Habermas’ thought and show that a more appropriate normative of sport that explains better our current sporting world can be achieved by drawing on the German philosopher’s ideas. The plan of this paper is the following. It shall analyse the limits of the distinction between broad internalism and externalism by taking Morgan’s work as its starting point. To do so, firstly, the conventionalist way in which Morgan criticises the limits of interpretivism shall be explained (§2). Secondly, the relationship between Morgan’s proposals and the hermeneutical theories which are at the roots of his proposal shall be brought to light. Thirdly, since Morgan takes Habermas’ hermeneutical ethics to be an example of externalism, the relationship between his theory and Habermas’ ethical account shall be clearly defined. Moreover, Morgan’s proposal shall be criticised in the light of Habermas’ discourse ethics (§3). To conclude, a Habermasian approach in sport ethics shall be described (§4). 相似文献
920.
F. Viñas M. González S. Malo Y. García F. Casas 《Applied research in quality of life》2014,9(2):355-366
Working on the basis that temperament – understood as the root from which personality traits emerge – is related to subjective wellbeing, a study was conducted on a sample of 1.483 students in compulsory secondary education aged between 12 and 16, half of whom attended schools in a rural or semiurban area and half in an urban setting. The aims of the study were as follows: a) to determine the level of personal wellbeing in a sample of 12 to 16 year-old adolescents measured using scores obtained from the Personal Wellbeing Index (PWI), and b) to analyse the relationship between temperament, measured using the Early Adolescent Temperament Questionnaire (EATQ-R), and personal wellbeing. Results indicate, among other things, that those temperament dimensions which best predict a high level of personal wellbeing are activity level, affiliation, shyness (with a negative weight), inhibitory control and activation control. 相似文献