全文获取类型
收费全文 | 366篇 |
免费 | 13篇 |
专业分类
教育 | 301篇 |
科学研究 | 10篇 |
各国文化 | 9篇 |
体育 | 23篇 |
文化理论 | 4篇 |
信息传播 | 32篇 |
出版年
2023年 | 3篇 |
2022年 | 5篇 |
2021年 | 10篇 |
2020年 | 4篇 |
2019年 | 14篇 |
2018年 | 23篇 |
2017年 | 30篇 |
2016年 | 12篇 |
2015年 | 9篇 |
2014年 | 18篇 |
2013年 | 90篇 |
2012年 | 9篇 |
2011年 | 13篇 |
2010年 | 14篇 |
2009年 | 11篇 |
2008年 | 8篇 |
2007年 | 7篇 |
2006年 | 4篇 |
2005年 | 9篇 |
2004年 | 8篇 |
2003年 | 7篇 |
2002年 | 4篇 |
2001年 | 3篇 |
2000年 | 5篇 |
1999年 | 9篇 |
1998年 | 3篇 |
1997年 | 5篇 |
1995年 | 3篇 |
1994年 | 4篇 |
1993年 | 3篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 2篇 |
1987年 | 2篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1982年 | 1篇 |
1981年 | 2篇 |
1980年 | 2篇 |
1979年 | 2篇 |
1977年 | 2篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1971年 | 3篇 |
1970年 | 1篇 |
1969年 | 1篇 |
1968年 | 4篇 |
1966年 | 1篇 |
排序方式: 共有379条查询结果,搜索用时 218 毫秒
291.
Two studies investigated 5- to 10-year-olds’ (N = 194) positivity bias when forecasting the future. Children from two geographic locations (mostly Caucasian, higher income college town; mostly African American, lower income urban community) completed a future expectations task (FET). For multiple scenarios, children predicted whether a positive versus negative (optimism items) or a positive versus extraordinary positive (wishful thinking items) outcome would occur, including its likelihood. In both samples, optimism and wishful thinking decreased with age, optimism was higher than wishful thinking, children did not show a comparative self-optimism bias, and individual differences in the FET optimism score correlated with self-reported dispositional optimism and hope. Exploratory comparisons revealed between-sample equivalence in responses to all measures, except for less tempered wishful thinking in the urban community. 相似文献
292.
Effects of weighted vests and sled towing on sprint kinematics 总被引:1,自引:0,他引:1
Cronin J Hansen K Kawamori N McNair P 《Sports biomechanics / International Society of Biomechanics in Sports》2008,7(2):160-172
In this study, we compared sprint kinematics of sled towing and vest sprinting with the same relative loads. Twenty athletes performed 30-m sprints in three different conditions: (a) un-resisted, (b) sled towing, and (c) vest sprinting. During sled towing and vest sprinting, external loads of 15% and 20% of body mass were used. Sprint times were recorded over 10 and 30 m. Sagittal-plane high-speed video data were recorded at 5, 15, and 25 m from the start. Relative to the un-resisted condition, sprint time increased (7.5 to 19.8%) in both resisted conditions, resulting mainly from decreased step length (-5.2 to -16.5%) with small decreases in step frequency (-2.7 to -6.1%). Sled towing increased stance phase duration (14.7 to 26.0%), trunk angle (12.5 to 71.5%), and knee angle (10.3 to 22.7%), and decreased swing phase duration (-4.8 to -15.2%) relative to the un-resisted condition. Vest sprinting increased stance phase duration (12.8 to 24.5%) and decreased swing phase duration (-8.4 to -14.4%) and trunk angle (-1.7 to -13.0%). There were significant differences between the two resisted conditions in trunk, thigh, and knee angles. We conclude that sled towing and vest sprinting have different effects on some kinematics and hence change the overload experienced by muscle groups. 相似文献
293.
294.
295.
Claire Hansen 《English in Education》2014,48(2):112-127
This article uses complexity theory's concept of ‘shadow systems’ to explore innovative ways of teaching Shakespeare, particularly The Merchant of Venice. Using data drawn from observations at a secondary school in Sydney, Australia, and interviews with two secondary teachers, this article aims to consider how embracing ideas which emerge from the unauthorised and often subversive ‘shadow network’ of a classroom environment can result in creative, independent, engaged learning. I use Ralph D. Stacey's theoretical framework and Bourdieu and Passeron's work on the legitimate to suggest that the tension between the legitimate and the shadow networks can create a space of ‘impotential’, as defined by Tyson Edward Lewis. 相似文献
296.
ABSTRACTThis article asks whether “sharenting” (sharing representations of one’s parenting or children online) is a form of digital self-representation. Drawing on interviews with 17 parent bloggers, we explore how parents define the borders of their digital selves and justify what is their “story to tell.” We find that bloggers grapple with profound ethical dilemmas, as representing their identities as parents inevitably makes public aspects of their children’s lives, introducing risks that they are, paradoxically, responsible for safeguarding against. Parents thus evaluate what to share by juggling multiple obligations—to themselves, their children in the present and imagined into the future, and to their physical and virtual communities. The digital practices of representing the relational self are impeded more than eased by the individualistic notion of identity instantiated by digital platforms, thereby intensifying the ambivalence of both parents and the wider society in judging emerging genres of blogging the self. 相似文献
297.
Bent R. Rønnestad Joar Hansen Geir Vegge Iñigo Mujika 《Journal of sports sciences》2017,35(14):1392-1395
ABSTRACTEndurance athletes usually achieve performance peaks with 2–4 weeks of overload training followed by 1–3weeks of tapering. With a tight competition schedule, this may not be appropriate. This case investigates the effect of a 7-day overload period including daily high-intensity aerobic training followed by a 5-day step taper between two competitions in an elite cross-country mountain biker. Pre-test peak oxygen consumption was 89 ml·kg?1·min?1, peak aerobic power 6.8 W·kg?1, power output at 2 mmol·L?1 blood lactate concentration 3.9 W·kg?1, maximal isometric force 180 Nm and squat jump 21 cm. During overload, perceived leg well-being went from normal to very heavy. On day 1 after overload, vastus lateralis and vastus medialis EMGmean activity was reduced by 3% and 7%, respectively. Other baseline measurements were reduced by 3–7%. On day 4 of the taper, he felt that his legs were good and all measurements were 3–7% higher than before overload. On day 6 after the taper, his legs felt very good. This case shows that an elite mountain biker (11th in UCI World Cup one week prior to the pre-test) could achieve a rather large supercompensation by using a 12-day performance peaking protocol. 相似文献
298.
299.
驰名商标的法律保护已成为我国乃至国际社会关注的热点问题,然而,纵观我国驰名商标的法律保护制度,可以发现,其与国际保护水平还有一定差距,存在着许多有待解决的问题和需要完善的地方.文章针对我国驰名商标的法律保护制度中存在的问题,分析原因并试图提出解决问题的对策. 相似文献
300.
James A. Anderson Roger D. Wimmer Joseph R. Dominick Jean Ward Kathleen Hansen Michael Rogers Rubin 《Communication Booknotes Quarterly》2013,44(11-12):127-129
COMMUNICATION RESEARCH: ISSUES AND METHODS by James A. Anderson (New York: McGraw-Hill, 1987--price not given) MASS MEDIA RESEARCH: AN INTRODUCTION by Roger D. Wimmer and Joseph R. Dominick (Belmont, CA: Wadsworth, 1987---price not given) SEARCH STRATEGIES IN MASS COMMUNICATION by Jean Ward and Kathleen Hansen (New York: Longman, 1986---$34.95/15.95) THE KNOWLEDGE INDUSTRY IN THE UNITED STATES: 1960-1980 by Michael Rogers Rubin and Mary Taylor Huber (Princeton, NJ: Princeton University Press, 1986---$40.00) KNOWLEDGE GENERATION, EXCHANGE, AND UTILIZATION edited by George M. Beal, et al. (Houlder,CO: Westview Press, 1986---$38.00, paper) OVERLOAD AND BOREDOM: ESSAYS ON THE QUALITY OF LIFE IN THE INFORMATION SOCIETY by Orrin K. Klapp (Westport, CT: Greenwood Press, 1986---$29.95) INTERNEDIA: INTERPERSONAL COMMUNICATION IN A MEDIA WORLD edited by Gary Gumpert and Robert Cathcart (New York: Oxford University Press, 1986---$16.95, paper) MAPPING THE INFORMATION BUSINESS by John McLaughlin and Anne Lousie Antonoff (Cambridge: Harvard University Program on Information Resources Policy, 1986---price not given, paper) 相似文献