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111.
Gary W. Kraemer Michael H. Ebert Dennis E. Schmidt William T. McKinney 《Child development》1991,62(3):548-566
Some rhesus monkey (Macaca mulatta) infants have a "despair" or depression-like response to mother-infant separation, while others do not. The presumed interrelation between early rearing conditions and the neurobiological status of the infant that might lead to increased risk for despair is not understood. In this study, the characteristics of the "mother" were controlled by rearing infant rhesus monkeys with their biological mothers, or with inanimate mothers. Behavioral data were collected before and after separation at 6-7 months of age. The neurobiological status of the infants was evaluated by measuring the concentration of norepinephrine, its major metabolite, and the metabolites of dopamine and serotonin in cerebrospinal fluid. The results suggest that despair is not simply a behavioral response to separation. Instead, despair may reflect the inability to cope with the separation environment. Coping with the separation environment appears to depend on neurobiological and behavioral characteristics of the infant that are related to, if not determined by, characteristics of the mother. 相似文献
112.
ABSTRACTAlthough over the past decades the numbers of studies investigating international student mobility and migration (ISM) increased, methodological challenges in empirical research on the topic have remained mainly unaddressed. This is particularly the case for sampling, which is a crucial but often less considered part of qualitative research designs. In this article, we identify three main challenges in qualitative sampling for research into ISM: time, space and international students’ heterogeneities. In addressing those challenges, we theoretically discuss their implications and give empirical examples drawing on our research experiences. We argue for a more reflexive research procedure in studying educational mobility. 相似文献
113.
ABSTRACT: :
Learning styles vary among individuals, and understanding which instructional tools certain learning styles prefer can be utilized to enhance student learning. Students in the introductory Food Science and Human Nutrition course (FSHN 101), taught at the Univ. of Illinois at Urbana-Champaign, were asked to complete Gregorc's Learning Style DelineatorTM , which identifies dominant learning style(s). In addition, students were asked to complete a survey that asked them to identify which instructional tools used in FSHN 101 they preferred and which they did not. All students, regardless of learning style, preferred the in-class lecture, outlined lecture notes, the WebCT site as a whole, lecture study guide questions, and example exam questions. 相似文献
Learning styles vary among individuals, and understanding which instructional tools certain learning styles prefer can be utilized to enhance student learning. Students in the introductory Food Science and Human Nutrition course (FSHN 101), taught at the Univ. of Illinois at Urbana-Champaign, were asked to complete Gregorc's Learning Style Delineator
114.
Ling-Yan Yang Jian-Peng Guo Lynn C. Richman Frank L. Schmidt Kathryn C. Gerken Yi Ding 《Educational Psychology Review》2013,25(1):115-143
This paper used meta-analysis to synthesize the relation between visual skills and Chinese reading acquisition based on the empirical results from 34 studies published from 1991 to 2011. We obtained 234 correlation coefficients from 64 independent samples, with a total of 5,395 participants. The meta-analysis revealed that visual skills as a global construct had a medium correlation effect size (r?=?0.32) associated with Chinese reading acquisition. The various visual processing skills differed in their relation to Chinese reading acquisition in different stages. Visual perception, speed of processing visual information, and pure visual memory had low-to-moderate correlations with Chinese reading acquisition in the lower grades (i.e., below second grade), whereas these relations did not retain their magnitude for children in the higher grades (i.e., second through sixth grades). By contrast, visual–verbal association skill was found to account for 34 and 41 % of the variance in children’s Chinese reading acquisition in both lower and higher grade levels, respectively. Greater attention to this construct can significantly benefit reading research and instructional practice. No regional differences between studies in Mainland China and Hong Kong were found in the meta-analysis. 相似文献
115.
Ruzanna Gevorgyan Elena Schmidt Martin Wall Geoffrey Garnett Rifat Atun Svetlana Maksimova 《Sex education》2013,13(2):213-226
Objective To investigate the attitudes of the main stakeholders towards the introduction of sex education in schools in Russia. Design Qualitative semi-structured interview study. Setting Altai Krai, Volgograd Oblast, Moscow, Russian Federation. Participants One hundred and fifty-three interviews with Intersectoral HIV/AIDS Committee members, government officials responsible for HIV policies and interventions, non-governmental organisation and private-sector representatives. Main outcome measures Perception of and attitudes towards the introduction of sex education in schools. Results Ninety-one per cent of stakeholders welcomed the introduction of sex education in schools and emphasised its importance for a child's personal development, public health, sexually transmitted diseases and HIV/AIDS control, and pregnancy planning. The majority of respondents suggested providing different information for each age and grade. Despite the claimed support of interviewed policy-makers and main HIV stakeholders, there has been no action to introduce sex education. The majority of respondents were of the view that wider positive support through propaganda about health, sex and healthy lifestyle should be gained prior to introducing sex education in schools by addressing the stigma surrounding sexual issues. Conclusions There was little opposition to the introduction of sex education in Russian schools expressed in our survey, but there are uncertainties regarding curriculum quality, teaching methods and the starting grade of teaching about sex, and there is a need to cover local sensitivities in the territories. These concerns could and should be addressed during curriculum design, development and programme implementation by the federal and local authorities. Wider involvement of educational specialists, peer-adults, health workers, celebrities and religious representatives in discussion of the curriculum could help prevent opposition to its implementation. Contribution to knowledge Discussion of sex-related topics has been taboo in Russia and there has been little research into opinions on issues related to sex education. The contribution of this research is in gaining theoretical in-depth understanding of the attitudes of the interviewed stakeholders in Russia about the introduction of sex education in schools. 相似文献
116.
LeEtta M. Schmidt 《Journal of Interlibrary Loan, Document Delivery & Electronic Reserve》2013,23(5):117-132
This article reports on a survey to Mexican, Caribbean, Central American, and South American libraries about interlibrary loan services and activities. It builds on previous studies and reports in an attempt to address a void in current interlibrary lending literature concerning Latin American libraries’ interlibrary lending services. 相似文献
117.
LeEtta M. Schmidt 《Journal of Interlibrary Loan, Document Delivery & Electronic Reserve》2013,23(3-5):181-192
Libraries and their interlibrary loan departments have enacted different methods for improving processes and services to create greater efficiency and less waste. Techniques range from holistic, and expansive process improvement projects to leveraging the ability of request management systems to automate processes and services successfully. This article explores the effect of automation on the output of a sample interlibrary loan department and points out possible challenges that this automation success may create in the future. 相似文献
118.
Rachelle J. A. Kamp Diana H. J. M. Dolmans Henk J. M. van Berkel Henk G. Schmidt 《Higher Education》2012,64(3):385-397
The purpose of this study was to investigate the relationship between the contributions students make to the problem-based tutorial group process as observed by their peers, self-study time and achievement. To that end, the Maastricht Peer Activity Rating Scale was administered to students participating in Problem-Based Learning tutorial groups. With this rating scale students had to rate the constructive, collaborative and motivational activities of their peers within the tutorial group. In addition, time spent on self-study was measured with a self-estimation method and achievement was measured with a unit test and a group assignment. A causal model of these variables was developed, in which the three types of activities were assumed to affect time spent on self-study, which would in turn affect unit test scores and group assignment scores. A structural equation modeling analysis indicated acceptable model fit. Especially apparent was the evidence for the causal relations between a student’s constructive activities and his/her unit test score and between a student’s collaborative activities and the group assignment score. On the other hand, time spent on self-study was not affected by the students’ contributions, nor did it have an effect on the unit test score. These results suggest that there are indeed causal relations between a student’s contributions to the tutorial group process and achievement. 相似文献
119.
Lydia Schaap Henk G. Schmidt Peter P.J.L. Verkoeijen 《Assessment & Evaluation in Higher Education》2012,37(7):875-887
The purpose of this study was to gain insight into determinants of knowledge growth among first-year psychology students in a curriculum that uses the Progress Test (an assessment method for long-term retention of knowledge and knowledge growth) as its main assessment tool. To that end, the relation between the level of initial learning, prior knowledge, class attendance and individual study time, and Progress Test scores was analysed. The data showed that level of initial learning was positively associated with prior knowledge and class attendance. Further, level of initial learning was positively related to knowledge growth at the end of the first year of the curriculum. Students with higher levels of initial learning had a more extended knowledge base at the end of the first year of their curriculum than students with lower levels of initial learning. Prior knowledge, class attendance and individual study time did not have a significant relation with knowledge growth. 相似文献
120.