全文获取类型
收费全文 | 440篇 |
免费 | 3篇 |
专业分类
教育 | 271篇 |
科学研究 | 47篇 |
各国文化 | 6篇 |
体育 | 72篇 |
文化理论 | 14篇 |
信息传播 | 33篇 |
出版年
2023年 | 2篇 |
2022年 | 13篇 |
2021年 | 17篇 |
2020年 | 18篇 |
2019年 | 25篇 |
2018年 | 30篇 |
2017年 | 20篇 |
2016年 | 26篇 |
2015年 | 16篇 |
2014年 | 20篇 |
2013年 | 94篇 |
2012年 | 20篇 |
2011年 | 20篇 |
2010年 | 14篇 |
2009年 | 12篇 |
2008年 | 10篇 |
2007年 | 13篇 |
2006年 | 11篇 |
2005年 | 9篇 |
2004年 | 2篇 |
2003年 | 10篇 |
2002年 | 3篇 |
2001年 | 1篇 |
2000年 | 6篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1996年 | 3篇 |
1995年 | 5篇 |
1994年 | 2篇 |
1992年 | 1篇 |
1991年 | 2篇 |
1990年 | 2篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1980年 | 1篇 |
1978年 | 1篇 |
1977年 | 2篇 |
1976年 | 1篇 |
1972年 | 1篇 |
排序方式: 共有443条查询结果,搜索用时 62 毫秒
401.
We describe, discuss and illustrate a metaphoric parallel between the history of the most famous Spanish liqueur, “Anís del Mono” (Anís of the Monkey), and the evolution of living organisms in the light of Darwinian theory and other biological hypotheses published
subsequent to Charles Darwin’s Origin of Species. Also, we report the use of a caricature of a simian Darwin with a positive connotation, perhaps the only one ever produced.
We conclude that, like some species in the natural world, Anís of the Monkey has evolved, adapted, survived and become the fittest and most successful anís in the Spanish market and possibly the world. We hope this paper will contribute a new useful metaphor for the teaching of
biological evolution. 相似文献
402.
Ezequiel M. Gonçalves Catarina N. Matias Diana A. Santos Luis B. Sardinha Analiza M. Silva 《Journal of sports sciences》2015,33(6):634-640
Bioelectrical impedance spectroscopy (BIS) is an inexpensive and non-invasive technique to measure total body water (TBW), extracellular water (ECW), and intracellular water (ICW). The purpose of this study was to validate TBW, ECW and ICW assessed by BIS, using dilution techniques as the reference method (REF) in elite judo athletes. Thirty-two Portuguese elite male judo athletes were evaluated during a period of weight stability. TBW, ECW and ICW were assessed by BIS (Xitron 4000). Deuterium and bromide dilution techniques were used as the criterion method for measuring TBW and ECW, while ICW was calculated as the difference between the two. BIS explained 96%, 77% and 94% of the total variability from REFs for TBW, ECW and ICW, respectively. BIS also demonstrated high precision (ρ ≥ 0.88) and accuracy (Cb = 0.98), with a minimum concordance coefficient correlation of 0.87 for ECW. The mean bias demonstrated that BIS slightly overestimated the REF in 1.1 kg (2.3%), 0.3 kg (1.6%) and 0.8 kg (2.7%) for TBW, ECW and ICW, respectively. The 95% limits of agreement ranged from ?1.2 to 3.3 kg in TBW, from ?1.8 to 2.4 kg in ECW and from ?1.0 to 2.6 kg in ICW. A non-significant trend was found between the difference and the mean of reference and alternative methods. These findings highlight the efficacy of BIS as a valid non-biased tool for the assessment of TBW and its compartments in elite male judo athletes, during a period of weight stability. 相似文献
403.
Xavier Bonfill Dimelza Osorio Margarita Posso Ivan Sol Gabriel Rada Ania Torres Marcelo García Dieguez Maricela Pia‐Pozas Luisa Díaz‐García Mario Tristn Omar Gandarilla David A. Rincn‐Valenzuela Arturo Martí Ricardo Hidalgo Daniel Simancas‐Racines Luis Lpez Ricardo Correa Antonieta Rojas‐De‐Arias Csar Loza
scar Gianneo Hector Pardo 《Health information and libraries journal》2015,32(4):276-286
404.
Luis Lozano 《Infancia y Aprendizaje》2013,36(64):111-126
ResumenEl objetivo fundamental de este trabajo es triple. Por una parte se expone el marco general que se asume. El modelo de lectura de doble ruta, encuadrado en los trabajos sobre el Procesamiento de la Información, propone una arquitectura funcional determinada por un número determinado de módulos con unas específicas comunicaciones entre ellos. A partir de aquí, conjuntamente con los datos experimentales que se conocen sobre cómo funciona la lectura en los buenos lectores, se utiliza para elaborar un diagnóstico de las dificultades lectoras. Este diagnóstico buscará el conocimiento de aquellas habilidades específicas que tienen que ver con la lectura y que por diversas circunstancias no funcionan adecuadamente. Por último, se planifica el tratamiento específico dirigido exclusivamente a los aspectos pertienentes a la lectura, sin divagar sobre otros aspectos clásicos (psicomotricidad, later alidad, etc.) que nada tienen que ver con la lectura. 相似文献
405.
406.
407.
Rick Oser Ellen Beck Jose Luis Alvarado Valerie Ooka Pang 《Multicultural Perspectives》2014,16(1):26-34
A comprehensive school and community wellness plan was developed and implemented to transform Lemon Grove Academy for the Sciences and Humanities, an urban school, where student achievement and faculty satisfaction has soared. The school has become the center for the local neighborhood where culture, language, and equity are valued. The school's Comprehensive Wellness Plan includes student wellness, family wellness, staff/faculty wellness, and environmental wellness. 相似文献
408.
Iván Clavel San Emeterio Jorge García-Unanue Eliseo Iglesias-Soler Jose Luis Felipe Leonor Gallardo 《European Journal of Sport Science》2019,19(2):217-224
Research question: The increase of physical exercise in fitness centres has turned these facilities in important active lifestyle promoters. However, only between 30% and 60% of subscribers still linked to the sports centre after a year. The aim of this study is to design a model to predict the drop out in fitness centres. Research methods: Monthly data corresponding to the actual behaviour of 14,522 members of three sport centres in Spain were recorded over the course of one year. In order to calculate the likelihood of drop out, logistic regressions were used to create predictive models for each centre. Results and findings: It was possible to predict abandonment of users of sport centres from their historical behaviour, although the predictive models obtained for each centre were not completely coincident. The effectiveness of the models was around 70%. Implications: The analysis of users’ behaviour in a fitness centre can allow to avoid the drop out and therefore the abandonment of physical activity. Segmenting the customers based on the likelihood of drop out may be useful for improving the effectiveness of the strategies of loyalty and for optimizing the organization of human and material resources. 相似文献
409.
Ibai Garcia-Tabar Iñaki Llodio Luis Sánchez-Medina Xabier Asiain Javier Ibáñez 《Journal of sports sciences》2017,35(4):385-392
This study aimed to validate the use of a single blood lactate concentration measure taken following a 12 km h?1 running stage (BLC12) to predict and monitor fixed blood lactate concentration (FBLC) thresholds. Three complementary studies were undertaken. Study I: the relationships between BLC12 and the running speeds at FBLC of 3 mmol L?1 (S3mM) and 4 mmol L?1 (S4mM) measured during a multistage running field test were examined in 136 elite athletes. Study II: data from 30 athletes tested one year apart were used to test the predictive capacity of the equations obtained in Study I. Study III: 80 athletes were tested before and after an intensified training period to examine whether training-induced changes in FBLC thresholds could be predicted and monitored by BLC12. Study I: BLC12 was significantly (P < 0.001) and inversely related to S3mM (R2 = 0.89) and S4mM (R2 = 0.95). Study II: prediction models yielded robust correlations between the estimated and measured FBLC thresholds (r = 0.94–0.99; P < 0.001). Study III: estimated changes predicted actual training-induced changes in FBLC thresholds (r = 0.81–0.91; P < 0.001). This study gives empirical support to use a single lactate measure during a sub-maximal running field test as a simple, low-cost and practical alternative to FBLC thresholds in athletes. 相似文献
410.
Information technology (IT) has become a powerful tool in today's business world. One specific impact of IT has been the development of the virtual office and organization. This paper discusses some issues associated with the virtual office. Some advantages and disadvantages of the virtual office are summarized from both employees' and employers' perspectives. The behavior engineering model (BEM) developed by Thomas Gilbert (1996) is used as a framework to analyze the different factors related to performance in the virtual office. Additionally, the application of other concepts from human performance technology (HPT) and organizational behavior management (OBM) perspectives are suggested. Some future research guidelines are discussed and the need to further develop experimental and more controlled data-based studies are pointed out. 相似文献