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421.
A sociocultural analysis of organisational learning   总被引:2,自引:0,他引:2  
The concept of organisational learning has been widely debated and frequently contested by educationalists, but the specific processes and actions which constitute this form of learning have received relatively little research attention. This paper reports a three‐year empirical investigation into organisational learning in a large industrial complex, with the aim of clarifying the practices of organisational learning and interpreting them within sociocultural learning theory. A sociocultural model is proposed which identifies dialogue as the fundamental process by which organisations learn, and relational practices as the social structure which embeds the dialogue and makes it sustainable in a potentially conflictual environment. Three relational practices are analysed in detail: opening space for the creation of shared meaning, reconstituting power relationships and providing cultural tools to mediate learning. A pedagogy of organisational learning is defined in terms of participation in these practices, either as the carrier of a practice or as the facilitator of participation by others. The theoretical requirement that adult learning must be autonomous is reconciled with the concept of collective learning in pursuit of organisational goals by rejecting the notion of an individually‐contained self in favour of a relational concept of the self, in which autonomy is achieved by building relationships with others.  相似文献   
422.
Key ‘generic’ assessment task words such as ‘discuss’ and ‘critically evaluate’ are integral to higher education assessment. Although sources such as study skills guides give generic decontextualised glossaries of these words, much research rightly argues for greater dialogue between students (particularly ‘non-traditional’ students) and lecturers to help students understand and use such words. This paper presents the results from ‘staged’ focus groups with lecturers and students from the UK and China that created a forum for such dialogue, where many of these words and their interpretations were talked about. Results show very different interpretations, informed by factors such as ‘language’, ‘culture’ and ‘subject’. We propose these factors be used in an ‘anti-glossary’ approach, which we describe here. This approach is not against glossaries per se, but counteracts the assumption that glossary definitions are explicit, and adopts a social constructivist contextualisation of the task words through teacher-led dialogue.  相似文献   
423.
Abstract

When athletes are placed into annual age groups to organize and coordinate sport participation, certain (dis)advantages occur as a result of the subtle age differences within these groups. These differences, termed “relative age effects”, have been consistently related to youth and adult sport attainment. However, there has been a lack of consistency in the terminology used in this area of research. In this paper, we consider the operational terms used in relative age research, discuss appropriate applications of terminology, and suggest directions for future research. Importantly, we argue for a unified understanding of what “relative age” means, stressing the need for clarity in directing future advances in the field.  相似文献   
424.
The aim of this study was trying to predict success in the qualifying round for the International Chemistry Olympiad (IChO) on the basis of the expectancy-value model of achievement motivation by Eccles et al. The investigation with 52 participants, including 14 females, was conducted during the third of four qualifying rounds of the IChO in Germany. The subjects filled in a questionnaire, took an intelligence test, and participated in two theoretical chemistry exams. Male and female Olympians showed large differences in parental support, motivation, and emotion as well as test performance. Ultimately, only one female participant qualified for the fourth round of the IChO. The model of Eccles et al. was well suited for predicting test performance in the competition. The strongest predictor was found to be the participation in a previous IChO. The implications for reducing gender differences and promoting scientifically talented students are discussed.  相似文献   
425.
Abstract The 'stiffness' concept originates from Hooke's law which states that the force required to deform an object is related to a spring constant and the distance that object is deformed. Research into stiffness in the human body is undergoing unprecedented popularity; possibly because stiffness has been associated with sporting performance and some lower limb injuries. However, some inconsistencies surrounding stiffness measurement exists bringing into question the integrity of some research related to stiffness. The aim of this study was to review literature which describes how vertical, leg and knee stiffness has been measured in adult populations while running, jumping or hopping. A search of the entire MEDLINE, PubMed and SPORTDiscus databases and an iterative reference check was performed. Sixty-seven articles were retrieved; 21 measured vertical stiffness, 51 measured leg stiffness, and 22 measured knee stiffness. Thus, some studies measured several 'types' of stiffness. Vertical stiffness was typically the quotient of ground reaction force and centre of mass displacement. For leg stiffness it was and change in leg length, and for the knee it was the quotient of knee joint moments and change in joint angle. Sample size issues and measurement techniques were identified as limitations to current research.  相似文献   
426.
Abstract

The purpose of this study was to establish if vertical stiffness was greater in professional Australian rules footballers who sustained a lower limb skeletal muscle strain compared to those who did not, and to establish if a relationship between age, or training history, and vertical stiffness existed. Thirty-one participants underwent weekly rebound jump testing on a force platform over two seasons. Vertical stiffness was calculated for injured players and the uninjured cohort 1 and 3 weeks prior to sustaining an injury and at the end of preseason. Eighteen athletes were in the “uninjured” cohort and 13 in the “injured” cohort. No significant difference in vertical stiffness was observed between groups (P = 0.18 for absolute stiffness; P = 0.08 for stiffness relative to body mass), within groups (P = 0.83 and P = 0.88, respectively) or for a time*cohort interaction (P = 0.77 and P = 0.80, respectively). No relationship between age and vertical stiffness existed (r = ?0.06 for absolute and relative stiffness), or training history and vertical stiffness (r = ?0.01 and 0.00 for absolute and relative stiffness, respectively) existed. These results and others lend to suggest that vertical stiffness is not related to lower limb muscle strain injury.  相似文献   
427.
Library materials are susceptible to fungal deterioration. The paper constituents of archival materials are subjected to harmful physical and chemical processes as they are slowly consumed by fungi. Remediation of fungal contamination can be costly and risk further damage to fragile or previously degraded materials. Early detection of fungal growth would permit the use of relatively noninvasive treatments to remediate fungal contamination of artifacts before visible or lasting damage has occurred. Current methods used for the detection of microbial biomass, such as colony counts, microscopic biovolume estimation, and ergosterol analysis are expensive, time consuming, or are inappropriate for use with fungi. Beta-N-acetylhexosaminidase (EC 3.2.1.52) activity provides a rapid and reliable means of fungal detection on a variety of cultural heritage materials. Adapted for use on archival materials, fluorogenic 4-Methylumbelliferyl (MUF) labeled substrate N-acetyl-Beta-D-glucosamine (NAG) was used to detect fungal beta-N-acetylhexosaminidase activity. The fluorescence generated by minute quantities of fungi was quickly detected at an early stage of growth. The sensitivity of the assay was comparable to other biochemical techniques. The fluorometric assay was well-suited for early detection of fungal biomass on paper and assessment of the effectiveness of common remediation practices.  相似文献   
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