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131.
Bruno Mezêncio João Pedro Pinho Rudolf Huebner João Paulo Vilas-Boas Alberto Carlos Amadio Julio Cerca Serrão 《Journal of sports sciences》2020,38(8):910-917
ABSTRACTThe aim of this study was to propose a group of parameters able to quantify not only arm coordination but also inter limb coordination. These include the well know index of coordination with the relative duration of the stroke phases and two new parameters: the Index of synchronization (Ids) between arms and legs actions; and the Index of inter limb coordination (IdIC) calculated as the relative foot position during successive arm stroke phases. These parameters were compared between experts and amateur swimmers in a maximal front crawl sprint. The influence of arm stroke in leg kick parameters was also assessed, comparing the full stroke condition with a condition without arms actions. Sixty-five per cent of expert swimmers used synchronized limb actions while 95% of amateur swimmers used non-synchronized limb motions. These synchronized expert swimmers also converged towards a specific coordination pattern between foot position and arm stroke phases. In the condition without arms, both groups changed kick rate and amplitude. The present study reveals the interdependency of arms and legs actions and the importance of coordination and synchronization between limbs. Therefore, the proposed group of overall indexes of coordination provides a more complete marker for the analysis of swimming technique. 相似文献
132.
Abstract This study investigated effects of manipulating the number of action possibilities in a futsal passing task to understand the representativeness of practice tasks designs. Eight male senior futsal players performed a passing task in which uncertainty on passing direction for the player in possession of the ball was increased in four conditions and compared with passing data from a competitive match. Performance during a passing task and competitive futsal performance was compared using ball speed and passing accuracy data. Ball speed data were analysed by approximate entropy (ApEn) to capture their regularity in each of the four conditions and during competitive performance. Significantly high levels of regularity were observed in predetermined passes in comparison with emergent passes (i.e., passes with high number of possibilities for action). Similar results for ball speed regularity were observed between practice tasks with a high number of possibilities for action (i.e., emergent passes) and competitive performance. Similar results were observed for passing accuracy in practice tasks with a high number of possibilities for action compared to competitive performance. Increases in the number of action possibilities during practice improved action fidelity of tasks in relation to competitive performance. 相似文献
133.
Bruno Goncalves Galdino da Costa Jean-Philippe Chaput Marcus Vinicius Veber Lopes Luis Eduardo Argenta Malheiros Kelly Samara Silva 《运动与健康科学(英文)》2022,11(2):252-259
Background:Physical activity,sleep,and sedentary behaviors compose 24-h movement behaviors and have been independently associated with depressive symptoms.However,it is not clear whether it is the movement behavior itself or other contextual factors that are related to depressive symptoms.The objective of the present study was to examine the associations between self-reported and accelerometer-measured movement behaviors and depressive symptoms in adolescents.Methods:Cross-sectional data from 610 adolescents(14-18 years old)were used.Adolescents answered questions from the Center for Epidemiological Studies Depression scale and reported time spent watching videos,playing videogames,using social media,time spent in various physical activities,and daytime sleepiness.Wrist-worn accelerometers were used to measure sleep duration,sleep efficiency,sedentary time,and physical activity.Mixed-effects logistic regressions were used.Results:Almost half of the adolescents(48%)were classified as being at high risk for depression(score≥20).No significant associations were found between depressive symptoms and accelerometer-measured movement behaviors,self-reported non-sport physical activity,watching videos,and playing videogames.However,higher levels of self-reported total physical activity(odd ratio(OR)=0.92,95%confidence interval(95%CI):0.86-0.98)and volume of sports(OR=0.88,95%CI:0.79-0.97),in minutes,were associated with a lower risk of depression,while using social media for either 2.0-3.9 h/day(OR=1.77,95%CI:1.58-2.70)or>3.9 h/day(OR=1.67,95%CI:1.10-2.54),as well as higher levels of daytime sleepiness(OR=1.17,95%CI:1.12-1.22),were associated with a higher risk of depression.Conclusion:What adolescents do when they are active or sedentary may be more important than the time spent in the movement behaviors because it relates to depressive symptoms.Targeting daytime sleepiness,promoting sports,and limiting social media use may benefit adolescents. 相似文献
134.
The AIDS epidemic presents a complex of issues that require global answers, involving entire societies. The only sustainable
solution is to include all sectors of society in a multidisciplinary collaboration, within which the formal education system
plays a key role in delivering a comprehensive response to the disease at the national level. Moreover, in order to be effective,
governments must work in collaboration with parents, religious leaders, and community members. This article describes eight
key issues that must be addressed to establish a successful HIV/AIDS education curriculum. It also provides examples of best
practices from three countries. First, HIV education in schools should adopt a human rights perspective and address stigma
and discrimination against people living with HIV (PLHIV). Second, gender issues should be fully integrated into messages
about the disease and the whole community should be sensitized on this topic. Third, national curricula must be designed in
respect of religious perspectives; the most successful ones will include religious leaders in the process. Fourth, the language
and content used in designing education materials for schools must be culturally sensitive, as local traditions can influence
the transmission of HIV; those developing curricula should explore the best ways to incorporate positive traditions into formal
education initiatives. Fifth, governments are responsible for providing comprehensive and adapted messages about the disease
to children and youth in school settings; they must develop a national strategic policy on it and establish specific measures
established to protect PLHIV. Sixth, the family plays the primary role in providing information to children on sexuality and
HIV-related issues, even if parents and children sometimes find it hard to talk about. Parents must be informed so they can
play a more active role in educating their children in this area. Seventh, teachers and administrators are central to effective
HIV education; as they often complement parents’ roles, they need to be trained at pre- and in-service levels on these issues,
including sexuality. Finally, children and young adults should learn about sexuality and HIV and AIDS at various stages throughout
their development. It is crucial to adapt the content to the age and knowledge level of the target group. 相似文献
135.
136.
Coppe Thibault Devos Christelle Colognesi Stéphane 《European Journal of Psychology of Education - EJPE》2023,38(1):25-42
European Journal of Psychology of Education - The present study focuses on how elementary-level student teachers reacted to difficulties during their first internship experience. More specifically,... 相似文献
137.
Elia E. Femia Steven H. Zarit Clancy Blair Shannon E. Jarrott Kelly Bruno 《Early childhood research quarterly》2008,23(2):272-287
We conducted an exploratory study evaluating the potential impact of intergenerational programming (IG) on children's socio-emotional development, behavior, school performance, and attitudes and behavior toward older adults. Children currently in kindergarten through second grade (age range: 6–8 years old) who previously attended one of two preschools of comparably high quality and serving families of similar demographic profiles were compared 1–3 years after graduating from their respective programs. One program offered intergenerational (IG) programming while the other was a traditional single-generation program (SG). Face-to-face interviews were conducted with the child and one of his/her parents in their home. In addition, a mail survey was sent to the child's school teacher. The study explored whether children exposed to IG had differential outcomes on specific measures as compared to children who attended the SG program. Results showed that children from the IG program had higher levels of social acceptance, a greater willingness to help and greater empathy for older people, slightly more positive attitudes, and better able to self-regulate their behavior than children from the SG program. Although limited by the lack of a pre–post experimental design, these results provide initial evidence that an IG program can offer additional benefits to children's development whose impact can last into the their early school age years. 相似文献
138.
Maria José Prata Bruno de Sousa Albertina L. Oliveira 《The Journal of educational research》2019,112(1):12-27
The authors analyze the efficacy of a cooperative method associated with self-regulated strategy development (SRSD) for argumentative writing compared with a SRSD single approach. Seven teachers and 230 ninth-grade students from three middle schools participated in the present study in which teachers were part of a practice-based professional development program. Schools were assigned either to the experimental group or to the comparison group. Over a three-month period, all students were taught SRSD strategies. After this period, students from the experimental group participated in a cooperative setting, whereas the comparison group followed the SRSD only. The results indicated that students in the experimental group made statistically significant greater gains in structural argumentative elements and in the quality of writing texts immediately after the intervention and one month later. Thus, the study provides evidence for the benefits of adding a cooperative setting to SRSD in implementing argumentative writing skills. 相似文献
139.
Cleiton Silva Correa Bruno Costa Teixeira Roberto Carlos Rebolledo Cobos Rodrigo Cauduro Oliveira Macedo Renata Lopes Kruger Randall Bruce Kreismann Carteri 《Journal of sports sciences》2015,33(18):1890-1901
The aim of this study was to compare the effects of 11 weeks of low-volume resistance training (LVRT) and high-volume resistance training (HVRT) on muscle strength, muscle thickness (MT), and postprandial lipaemia (PPL) in postmenopausal women. Thirty-six healthy and untrained postmenopausal women (age, 58.9 ± 5.8 years; 68.6 ± 10.3 kg; and BMI, 26.9 ± 4.8 kg · m?2) participated in resistance training 3× per week for 11 weeks (HVRT = 12; LVRT = 13; and control group = 11). Biochemical variables, both pretraining and post-training, were evaluated 16 h after the administration of an oral fat tolerance test (OFTT) and metabolic variable during [energy expenditure (EE)] and after training session [excess postexercise oxygen consumption (EPOC)]. Muscle strength (1 RM) and MT were also calculated, and no significant differences were observed between the groups for PPL (mmol · L?1 per 5 h) as measured by glucose, high-density lipoprotein, low-density lipoprotein, and total cholesterol. EE total (EE + EPOC; 6.12 ± 1.21 MJ vs. 2.26 ± 0.85 MJ), resting fat oxidation (5.52 ± 1.69 g · h?1 vs. 4.11 ± 1.12 g · h?1); MT (vastus medialis, 21.4 ± 1.8 mm vs. 18.4 ± 1.2 mm and vastus lateralis 22.3 ± 1.2 mm vs. 20.8 ± 1.3 mm); triacylglycerol (TAG) 0, 1, 2, 4; and 5 h after OFTT, TAG area under the curve (AUC) (5.79 ± 0.42 vs. 7.78 ± 0.68), and incremental AUC (?46.21 ± 14.42% vs. 7.78 ± 4.68%) were all significantly different post-training for HVRT versus LVRT, respectively (P < 0.05). The results of this investigation suggest that HVRT reduces PPL in postmenopausal women. 相似文献
140.
Bruno V. Manno 《Religious education (Chicago, Ill.)》2013,108(6):619-620