全文获取类型
收费全文 | 537篇 |
免费 | 9篇 |
专业分类
教育 | 365篇 |
科学研究 | 36篇 |
体育 | 72篇 |
文化理论 | 4篇 |
信息传播 | 69篇 |
出版年
2024年 | 1篇 |
2023年 | 3篇 |
2022年 | 7篇 |
2021年 | 11篇 |
2020年 | 22篇 |
2019年 | 27篇 |
2018年 | 56篇 |
2017年 | 35篇 |
2016年 | 32篇 |
2015年 | 16篇 |
2014年 | 18篇 |
2013年 | 80篇 |
2012年 | 22篇 |
2011年 | 24篇 |
2010年 | 19篇 |
2009年 | 19篇 |
2008年 | 18篇 |
2007年 | 23篇 |
2006年 | 13篇 |
2005年 | 21篇 |
2004年 | 8篇 |
2003年 | 4篇 |
2002年 | 17篇 |
2001年 | 11篇 |
2000年 | 7篇 |
1999年 | 8篇 |
1998年 | 4篇 |
1996年 | 1篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1982年 | 1篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1975年 | 1篇 |
1974年 | 1篇 |
1971年 | 1篇 |
1970年 | 1篇 |
1969年 | 1篇 |
1964年 | 1篇 |
1963年 | 1篇 |
排序方式: 共有546条查询结果,搜索用时 15 毫秒
81.
Andrew Davies Lars Frederiksen Eugenia Cacciatori Andreas Hartmann 《Research Policy》2018,47(8):1403-1417
Prior research on organizational routines in the ‘capabilities’ literature has either studied how new routines are created during an exploratory process of variation and selection or how existing routines are replicated during a phase of exploitation. Few studies have analyzed the life cycle of new routine creation and replication as an integrated process. In an in-depth case study of England’s Highways Agency, this paper shows that the creation and replication of a new routine across multiple sites involves four sequential steps: envisioning, experimenting, entrenching and enacting. We contribute to the capabilities research in two ways: first, by showing how different organizational levels, capabilities and logics (cognitive and behavioural) shape the development of new routines; and second, by identifying how distinct evolutionary cycles of variation and selective retention occur during each step in the process. In contrast with prior research on replication as an exact copy of a template or existing routine, our study focuses on the replication of an entirely new routine (based on novel principles) that is adapted to fit local operational conditions during its large-scale replication across multiple sites. We draw upon insights from adjacent ‘practice research’ and suggest how capabilities and practice studies may complement each other in future research on the evolution of routines. 相似文献
82.
The purpose of this pilot study was to investigate the effect of playing-position-dependent training routines in soccer on the various muscle–tendon parameters. We hypothesized that there would be differences in such parameters between competitive goalkeepers and midfielders. According to their playing position, 21 healthy volunteers were assigned to goalkeeper (n?=?7), midfielder (n?=?7), and control (n?=?7) groups. To investigate the muscle–tendon parameters, we determined the maximum dorsiflexion range of motion and the corresponding muscle thickness, fascicle length, and pennation angle of the gastrocnemius medialis. Passive resistive torque and maximum voluntary contraction were measured with a dynamometer. Observation of muscle–tendon junction displacement with ultrasound allowed us to determine length changes in the tendon and muscle, respectively, and hence to calculate stiffness. There was no significant difference in range of motion, passive resistive torque, muscle–tendon stiffness, and the examined structural parameters (e.g., tendon stiffness) between the three groups. However, we found a significant difference in maximum voluntary contraction torque between the goalkeepers and midfielders vs. the controls, but not between the athlete groups. Habitual training leads to higher muscle strength in soccer players compared to less active persons. However, soccer training does not lead to specific muscle and tendon architecture adaptations according to playing position or when compared to less active persons. 相似文献
83.
Stefan Vogt Yorck Olaf Schumacher Andreas Blum Kai Roecker Hans-Hermann Dickhuth Andreas Schmid 《Journal of sports sciences》2013,31(12):1299-1305
Abstract Until recently, the physiological demands of cycling competitions were mostly reflected by the measurement of heart rate and the indirect estimation of exercise intensity. The purpose of this case study was to illustrate the varying power output of a professional cyclist during flat and mountain stages of a Grand Tour (Giro d'Italia). Nine stage recordings of a cyclist of the 2005 Giro d'Italia were monitored using a mobile power measurement device (SRM Trainingssystem, Julich, Germany), which recorded direct power output and heart rate. Stages were categorized into flat (n = 5) and mountain stages (n = 4). Data were processed electronically, and the overall mean power in flat and mountain stages and maximal mean power for various durations were calculated. Mean power output was 132 W ± 26 (2.0 W · kg?1 ± 0.4) for the flat and 235 W ± 10 (3.5 W · kg?1 ± 0.1) for the mountain stages. Mountain stages showed higher maximal mean power (367 W) for longer durations (1800 s) than flat stages (239 W). Flat stages are characterized by a large variability of power output with short bursts of high power and long periods with reduced intensity of exercise, whereas mountain stages mostly require submaximal, constant power output over longer periods. 相似文献
84.
Irina Burchard Erdvik Tommy Haugen Andreas Ivarsson Reidar Säfvenbom 《Scandinavian Journal of Educational Research》2020,64(5):768-781
ABSTRACT Global self-worth is important for healthy development and learning, and is therefore highlighted as a major aim in the Norwegian physical education (PE) curriculum. Based on prior research this study aimed to assess potential differences in global self-worth and contextual basic need satisfaction among 2854 adolescents (47.5% boys, 52.5% girls, ages 13 and 16) participating in different movement contexts, and to determine whether basic need satisfaction in PE relates to global self-worth. Structural equation modeling analyses indicate that basic need satisfaction in PE relates significantly to global self-worth. However, adolescents who do not participate in movement contexts outside school report significantly lower basic need satisfaction in PE compared to their sports-active peers, and could possibly therefore experience reduced global self-worth development through PE. Findings support research showing that sports active youth reap most of the bene?ts of PE, and thus, that PE violates the principles of equal education. 相似文献
85.
Andreas Karatsolis Suguru Ishizaki Marsha Lovett Stacie Rohrbach Mollie Kaufer 《Technical Communication Quarterly》2016,25(4):244-259
This article presents an experimental pedagogical framework for providing technical professionals with practice on writing skills focusing on the development of their metacognitive rhetorical awareness. The article outlines the theoretical foundation that led to the development of the framework, followed by a report of a pilot study involving information technology professionals in a global setting using an online learning environment that was designed based on the framework. 相似文献
86.
Andreas Rausch 《Vocations and Learning》2017,10(2):177-199
It was investigated how domain-specific knowledge, fluid intelligence, vocational interest and work-related self-efficacy predicted domain-specific problem-solving performance in the field of office work. The participants included 100 German VET (vocational education and training) students nearing the end of a 3-year apprenticeship program as an industrial clerk (n?=?63) which usually leads to a position in office work, lower or middle management, or a similar apprenticeship program to become IT-systems management assistants (n?=?37). The participants worked on three computer-based problem scenarios dealing with operative controlling, a relevant domain to both training occupations, and completed further assessments to measure the variables listed above. Theoretical considerations, prior research and domain analyses suggested that industrial clerks would have greater domain-specific problem-solving competence (H1a) and domain-specific knowledge (H1b) than IT-systems management assistants and that domain-specific knowledge would be the strongest predictor of problem-solving competence (H2: “knowledge-is-power” hypothesis); all hypotheses were confirmed. Hypothesis 3, the “Elshout-Raaheim hypothesis,” predicts that fluid intelligence and problem-solving competence are most strongly correlated in the context of intermediate levels of task-related content knowledge, however the highest correlation was found in the group with low domain-specific knowledge. The findings suggest that intelligence plays a minor role in later stages of competence development whereas typical problem situations in later stages particularly require prior knowledge. The relationship of intelligence, knowledge and problem solving as well as limitations of the study, particularly weaknesses in the measurement of non-cognitive dispositions, are discussed. 相似文献
87.
Ester Fremstad Andreas Bergh Tone Dyrdal Solbrekke Trine Fossland 《International Journal for Academic Development》2020,25(2):107-120
ABSTRACT In this paper, we explore possibilities and challenges for deliberative academic development. Deliberative academic development refers to a practice that engages members of the university in dialogue about its purposes, ways of organizing and leading higher education, as well as teaching and learning. The paper critically analyses data from focus group interviews with academic developers from four universities within two national contexts. Combining sociological conceptualizations of agency and the framework of ‘epistemic living spaces’, the paper offers insights into challenges and opportunities for deliberative academic development, as well as a framework for studying agency in other contexts. 相似文献
88.
Different indicators are interesting for analyzing human learning processes. Recent studies analyze learning performance in combination with cognitive load, as an indicator for learners’ invested mental effort. In order to compare different measures of cognitive load research, the present study uses three different objective methods and one subjective method, reviewing the seductive details effect in a computer-based multimedia learning instruction. An experimental two-group design (N = 50) was used, with exposure to seductive details during learning as the between group factor. Eye movements were analyzed concerning the indicated cognitive activity and cognitive load was measured by the rhythm method (Park 2010; Park and Brünken 2015), the index of cognitive activity (ICA) (Marshall 2007), as well as by subjective ratings of mental effort and task difficulty (Paas 1992). Results confirm the seductive details effect for learning success with a decrease in retention and comprehension performance, an increase in total cognitive activity indicated by eye movements and significant higher cognitive load, indicated by rhythm method. The ICA values and the subjective ratings on mental effort and task difficulty show no difference in cognitive load between the groups. The results provide evidence of the suitability of different objective measures for a direct and continuous cognitive load assessment in multimedia learning. Further, the results show the benefit of combining different methods to gain detailed insight into information processing while learning with multimedia as well as a differentiated access to the single cognitive load factors. 相似文献
89.
Ohne Zusammenfassung 相似文献
90.
Andreas Åkerlund 《Paedagogica Historica: International Journal of the History of Education》2014,50(3):390-409
Programmes of international educational exchange are not only carried out for educational purposes, but form an important part of modern-day public diplomacy. Through exchange programmes education and research are linked with foreign policy interests, which then in turn should affect the international contacts of universities and research facilities. The present article applies a long-term perspective on the scholarship programme of the Swedish state in order to show how the shifts in Swedish foreign policy during the period 1938–1990 have affected the number and composition of scholars incoming to Sweden over time. 相似文献