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241.
Yuanzhi Li Margaret M Mayfield Bin Wang Junli Xiao Kamil Kral David Janik Jan Holik Chengjin Chu 《国家科学评论(英文版)》2021,8(5)
It is known that biotic interactions are the key to species coexistence and maintenance of species diversity. Traditional studies focus overwhelmingly on pairwise interactions between organisms, ignoring complex higher-order interactions (HOIs). In this study, we present a novel method of calculating individual-level HOIs for trees, and use this method to test the importance of size- and distance-dependent individual-level HOIs to tree performance in a 25-ha temperate forest dynamic plot. We found that full HOI-inclusive models improved our ability to model and predict the survival and growth of trees, providing empirical evidence that HOIs strongly influence tree performance in this temperate forest. Specifically, assessed HOIs mitigate the competitive direct effects of neighbours on survival and growth of focal trees. Our study lays a foundation for future investigations of the prevalence and relative importance of HOIs in global forests and their impact on species diversity. 相似文献
242.
This paper reports a study on teachers’ domain‐specific beliefs about the chemistry curriculum for upper‐secondary education in The Netherlands. Teachers’ beliefs were investigated using a questionnaire focused on the goals of the chemistry curriculum. The design of the questionnaire was based on three curriculum emphases: ‘fundamental chemistry’, ‘chemistry, technology and society’, and ‘knowledge development in chemistry’. The questionnaire was administered to a sample of Dutch chemistry teachers. The results indicate that, on the whole, the curriculum emphasis ‘fundamental chemistry’ received the strongest support. This is in accordance with the content and the tradition of the Dutch chemistry curriculum. When the two types of upper‐secondary education were compared, it appeared that ‘chemistry, technology and society’ was almost equally valued for both types of education. However, the curriculum emphasis, ‘knowledge development in chemistry’, was considered much more important for pre‐university education than for senior general secondary education. 相似文献
243.
Jan Helge Kallestad 《Scandinavian Journal of Educational Research》2013,57(2):193-205
We have earlier reported overall teacher emphases on six general educational goals. In the present study we present school level analyses of the same goal variables. The new focus of the present study was on possible school differences in teacher goal emphases. It is assumed that school differences may indicate a process of teacher socialisation in schools, particularly if these characteristics are relatively stable over time. About 40 schools were analysed at two points in time and they were represented by two different samples of teachers (144 and 157 teachers). We analysed both individual goal variables and goal profiles defined by how the teachers ranked the six goals. Only the 'profile approach' indicated school-specific goal priorities. The results also showed that the degree of goal consensus in schools should not be regarded as an aspect of the school climate. In addition, the measure of school goal consensus was weakly related to other examined aspects of the school climate. 相似文献
244.
245.
Mats Granlund Jan Terneby Cicilia Olsson 《Scandinavian Journal of Educational Research》2013,57(4):323-338
A set of questionnaires concerning subject characteristics, ability to express communicative functions and communicative environment was administered to carers of 70 profoundly retarded subjects in day‐activity centres. The purpose was to investigate the interrelationships among subject characteristics such as cognitive ability and motor ability, ability to express communicative functions, and the communicative environment. A multiple regression analysis in which the level of cognitive impairment and motor ability was adjusted for revealed significant correlations between the subjects’ ability to express communicative functions and communicative enbironment variables as perceived by staff. 相似文献
246.
Kajsa Yang Hansen Monica Rosén Jan‐Eric Gustafsson 《Scandinavian Journal of Educational Research》2013,57(2):197-211
This study examines the changes in educational inequality at the school‐ and individual‐levels in 1991 and 2001. Comparisons are made between the IEA Reading Literacy Study 1991 and the so called 10‐Year Trend Study in PIRLS 2001. The between‐school differences in reading achievement variance and the size of the relationship between SES and reading achievement at school‐level are the two main focuses. Applying a two‐level structural equation modeling technique, it was found that the between‐school differences in reading achievement were greater in RLS 2001 than in RLS 1991, and the school SES effect has been strengthened over time. These changes indicate that educational inequality in Sweden has increased over time. Some possible explanations to these changes are discussed with reference to school reforms and demographic changes. 相似文献
247.
248.
Kristof De Witte Ides Nicaise Jeroen Lavrijsen Georges Van Landeghem Carl Lamote Jan Van Damme 《European Journal of Education》2013,48(3):331-345
This article presents a comparative analysis of the determinants of early school leaving (ESL) at the country level. We decompose ESL rates into two components: a ‘primary’ rate reflecting unqualified school leaving from initial education, and a second component accounting for early school leavers who participate in training programmes. Both may be influenced by structural and policy determinants. We examine how the ESL rate is affected by macro-economic and social context variables such as GDP/capita, growth, poverty, and youth unemployment, as well as system characteristics of the education system (such as legal school leaving age, grade retention, early tracking, and size of vocational education) and the labour market and social protection systems (minimum wages, unemployment insurance). 相似文献
249.
An important purpose of internships in teacher preparation programmes is to develop competence through experience. The research questions in the present study concern student teachers’ interpersonal profiles (i.e. patterns of their interpersonal behaviour as perceived by students) and the accuracy of their self-belief regarding the interpersonal relationship with students at the beginning and end of the internship. Participants were student teachers (n=34) of a one-year teacher education programme. There were fewer student teachers with preferable interpersonal profiles at the end of the internship than in the beginning. Self-beliefs at the beginning indicated that the majority of student teachers were underestimating themselves; at the end of the internship most of them were overestimating themselves. About two-thirds had more accurate self-beliefs at the end of the internship than at the beginning. Overestimating oneself seemed negatively related to more accurate self-beliefs at the end of the internship and student teachers with more preferable profiles had more accurate self-beliefs. 相似文献
250.
Jan Green 《Pastoral Care in Education》2013,31(3):34-38
Books reviewd R. Klein, Defying Disaffection: How Schools are Winning the Hearts and Minds of Reluctant Students C. Wright, D. Weekes and A. McGlaughlin, ‘Race’, Class and Gender in Exclusion from School S. Decker, S. Kirby, A. G. Wood and D. Moore, (eds) Taking Children Seriously: Applications of Counselling and Therapy in Education Denis Lawrence, Teaching with Confidence: A Guide to Enhancing Teacher Self-Esteem J. Elliott and M. Place, Children in Difficulty: A Guide to Understanding and Helping 相似文献