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461.
This investigation tested the effectiveness of inoculation as a pre-crisis strategy in combating the effects of politically motivated violent acts. A four-phase experiment was conducted involving 355 national consumer panel participants. The findings indicate that inoculation can be an effective pre-crisis message strategy as it was successful in enhancing public beliefs in the ability of government agencies to prevent, and minimize the effects of, violent acts. This strategy also created a ‘blanket of protection’ that extended beyond the focal politically motivated attack event as it enhanced the confidence in government agencies to manage national crises in general. Inoculation was also effective in lowering the intensity of experienced fear evoked by the threat of violent attacks and it enhanced the ability of individuals to cope with the aftermath of a crisis.  相似文献   
462.
Abstract

The body of evidence supporting a relationship between the social determinants of health and adolescent sexual and reproductive health is vast. To advance health and have a greater impact on adolescent health outcomes, sexual and reproductive health practitioners need to take into account the relationships, community, and society within which adolescents live, learn, and play. With this review, we aim to provide practitioners with a clear understanding of the value of adopting a more comprehensive approach and we provide concrete recommendations for actualizing social determinants of health through programs and services. Recommendations are provided for each of the five social determinants of health categories outlined by Healthy People 2020, including Neighborhood and Built Environment, Economic Stability, Health and Healthcare, Social and Community Context, and Education.  相似文献   
463.
Enrichment programs provide learning opportunities for a broader or deeper examination of curricular or extracurricular topics and are popular in gifted education. Herein, we investigated the effectiveness of a statewide extracurricular enrichment program for gifted elementary school children in Germany. The program implemented a ”grass roots“ strategy by which local units developed and offered the enrichment courses, which spanned a broad array of topics. The courses targeted different outcomes, including students' cognitive abilities, school achievement, interests, creativity, self-control, self-concept, and social competencies. We compared third-grade students attending the enrichment program (N =423) with nonattending third-grade students (N = 2,328) by means of a propensity score analysis. Specifically, we controlled for potential selection effects and estimated the average causal effect of the enrichment program for children attending the program. The findings revealed positive program effects on academic achievement but not on the other targeted outcomes.  相似文献   
464.
Children extend regular grammatical patterns to irregular words, resulting in overregularizations like comed, often after a period of correct performance ("U-shaped development"). The errors seem paradigmatic of rule use, hence bear on central issues in the psychology of rules: how creative rule application interacts with memorized exceptions in development, how overgeneral rules are unlearned in the absence of parental feedback, and whether cognitive processes involve explicit rules or parallel distributed processing (connectionist) networks. We remedy the lack of quantitative data on overregularization by analyzing 11,521 irregular past tense utterances in the spontaneous speech of 83 children. Our findings are as follows. (1) Overregularization errors are relatively rare (median 2.5% of irregular past tense forms), suggesting that there is no qualitative defect in children's grammars that must be unlearned. (2) Overregularization occurs at a roughly constant low rate from the 2s into the school-age years, affecting most irregular verbs. (3) Although overregularization errors never predominate, one aspect of their purported U-shaped development was confirmed quantitatively: an extended period of correct performance precedes the first error. (4) Overregularization does not correlate with increases in the number or proportion of regular verbs in parental speech, children's speech, or children's vocabularies. Thus, the traditional account in which memory operates before rules cannot be replaced by a connectionist alternative in which a single network displays rotelike or rulelike behavior in response to changes in input statistics. (5) Overregularizations first appear when children begin to mark regular verbs for tense reliably (i.e., when they stop saying Yesterday I walk). (6) The more often a parent uses an irregular form, the less often the child overregularizes it. (7) Verbs are protected from overregularization by similar-sounding irregulars, but they are not attracted to overregularization by similar-sounding regulars, suggesting that irregular patterns are stored in an associative memory with connectionist properties, but that regulars are not. We propose a simple explanation. Children, like adults, mark tense using memory (for irregulars) and an affixation rule that can generate a regular past tense form for any verb. Retrieval of an irregular blocks the rule, but children's memory traces are not strong enough to guarantee perfect retrieval. When retrieval fails, the rule is applied, and overregularization results.  相似文献   
465.
Of five structural variables that in previous studies accounted for a significant amount of the observed variance in the error rate in verbal arthmetic problems, the length variable (number of words in the problem statement) apparently was more important in the upper grades than in the lower grades. In this study three forms of a verbal problem set in which the number of words in the problem statements were systematically varied were administered to classes of students in Grades 4–9. Using regression analysis, the investigator found that although the length variable did not measure a significant amount of variance between two of the forms, with the third it did.  相似文献   
466.
A three-factor theory of child abuse has been developed which includes: (1) a high level of parental aggression; (2) a low level of parental inhibition of overt aggression; and (3) the focusing of parental aggression on the child. In the theory each factor is the outcome of a subfactor “path.” A high level of parental aggression is the outcome of seven subfactors. A low level of parental inhibition of overt aggression is the outcome of three subfactors. The focusing of parental aggression on the child is the outcome of ten subfactors. The theory posits that the type of child abuse that occurs is determined by the ratio of total parental aggression to total parental inhibition of overt aggression. High numerical values of the ratio result in battering. Lower numerical values result, in descending order, in non-organic failure to thrive, physical neglect and emotional abuse. The theory and 50 hypotheses derivable from it are being tested on a sample of 150 child-abuse families and 150 control families.  相似文献   
467.
The purpose of the present study was to examine how counsellor race influences client evaluation of counselling effectiveness. It was predicted that ethnic minority counsellors would be perceived less favorably than the Caucasian counsellor. Three groups of secondary school students viewed a 10-minute videotaped stimulus interview, with different introductions for the stimulus counsellor's race (Caucasian, Native Indian, and East Indian). The dependent measure, perceived counselling effectiveness, was obtained and compared among counsellor races by analysis of variance. The results showed that the ethnic minority counsellors were perceived more favorably than the Caucasian counsellor. No differential effect was found in client perception of non-verbal behaviors. Implications of the findings are discussed.  相似文献   
468.
A word-spotting task is used in Spanish to test the way in which polysyllabic letter-strings are parsed in this language. Monosyllabic words (e.g., bar) embedded at the beginning of a pseudoword were immediately followed by either a coda-forming consonant (e.g., barto) or a vowel (e.g., baros). In the former case, the embedded word corresponds to the first spoken syllable, whereas it cuts across the syllable boundary in the latter case. Unlike a previous study in English using the same methodology (Taft & Álvarez, 2014), the embedded word was found to be easier to detect when followed by a consonant than a vowel, at least for low-frequency words. It was concluded that phonological recoding is more important in the parsing of Spanish words than English words, where maximization of the coda dominates instead.  相似文献   
469.
Textbooks in applied mathematics often use graphs to explain the meaning of formulae, even though their benefit is still not fully explored. To test processes underlying this assumed multimedia effect we collected performance scores, eye movements, and think-aloud protocols from students solving problems in vector calculus with and without graphs. Results showed no overall multimedia effect, but instead an effect to confirm statements that were accompanied by graphs, irrespective of whether these statements were true or false. Eye movement and verbal data shed light on this surprising finding. Students looked proportionally less at the text and the problem statement when a graph was present. Moreover, they experienced more mental effort with the graph, as indicated by more silent pauses in thinking aloud. Hence, students actively processed the graphs. This, however, was not sufficient. Further analysis revealed that the more students looked at the statement, the better they performed. Thus, in the multimedia condition the graph drew students’ attention and cognitive capacities away from focusing on the statement. A good alternative strategy in the multimedia condition was to frequently look between graph and problem statement, and thus to integrate their information. In conclusion, graphs influence where students look and what they process, and may even mislead them into believing accompanying information. Thus, teachers and textbook designers should be very critical on when to use graphs and carefully consider how the graphs are integrated with other parts of the problem.  相似文献   
470.
Risk is always present in people’s lives: diseases, new technologies, socio-scientific issues (SSIs) such as climate change, and advances in medicine—to name just a few examples—all carry risks. To be able to navigate risks in everyday life, as well as to participate in social debate on risk-related issues, students need to develop risk competence. Science education can be a powerful tool in supporting students’ risk competence, which is an important component of scientific literacy. As there are different definitions of risk within the scientific community, the aims of this article are (1) to review the literature on two major theoretical frameworks for conceptualising risk, the realist, and the constructivist paradigms of risk and (2) to connect both in order to suggest a working definition of what can be understood as risk competence in science instruction.  相似文献   
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