全文获取类型
收费全文 | 33134篇 |
免费 | 1279篇 |
国内免费 | 18篇 |
出版年
2020年 | 329篇 |
2019年 | 443篇 |
2018年 | 617篇 |
2017年 | 660篇 |
2016年 | 640篇 |
2015年 | 490篇 |
2014年 | 521篇 |
2013年 | 2613篇 |
2012年 | 934篇 |
2011年 | 1060篇 |
2010年 | 692篇 |
2009年 | 685篇 |
2008年 | 940篇 |
2007年 | 879篇 |
2006年 | 809篇 |
2005年 | 705篇 |
2004年 | 647篇 |
2003年 | 691篇 |
2002年 | 641篇 |
2001年 | 1222篇 |
2000年 | 1188篇 |
1999年 | 858篇 |
1998年 | 385篇 |
1997年 | 312篇 |
1996年 | 308篇 |
1995年 | 311篇 |
1994年 | 315篇 |
1992年 | 731篇 |
1991年 | 700篇 |
1990年 | 664篇 |
1989年 | 620篇 |
1988年 | 587篇 |
1987年 | 581篇 |
1986年 | 549篇 |
1985年 | 615篇 |
1984年 | 480篇 |
1983年 | 379篇 |
1979年 | 468篇 |
1978年 | 350篇 |
1977年 | 332篇 |
1975年 | 415篇 |
1974年 | 419篇 |
1973年 | 476篇 |
1972年 | 383篇 |
1971年 | 320篇 |
1970年 | 306篇 |
1969年 | 327篇 |
1968年 | 378篇 |
1967年 | 333篇 |
1966年 | 385篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
Corinna S. Martarelli Fred W. Mast 《The British journal of developmental psychology》2011,29(3):425-436
We investigated eye‐movements during preschool children's pictorial recall of seen objects. Thirteen 3‐ to 4‐year‐old children completed a perceptual encoding and a pictorial recall task. First, they were exposed to 16 pictorial objects, which were positioned in one of four distinct areas on the computer screen. Subsequently, they had to recall these pictorial objects from memory in order to respond to specific questions about visual details. We found that children spent more time fixating the areas in which the pictorial objects were previously displayed. We conclude that as early as age 3–4 years old, children show specific eye‐movements when they recall pictorial contents of previously seen objects. 相似文献
22.
23.
Evaluated the effect of varied physician affect on subject recall, anxiety, and perceptions in a simulated tense and ambiguous medical situation. Forty women at risk for breast cancer viewed videotapes of an oncologist presenting--with either worried or nonworried affect--mammogram results. Although the mammogram results and the oncologist were the same in both presentation, analyses indicated that, compared to the women receiving the results from a nonworried physician, the women receiving the results from a worried physician recalled significantly less information, perceived the clinical situation as significantly more severe, reported significantly higher levels of state anxiety, and had significantly higher pulse rates. These results suggest that physician affect plays a critical role in patient reaction to medical information. Implications for compliance research, patient satisfaction, and physician training are discussed. 相似文献
24.
25.
26.
Catherine Pickstock 《Modern Theology》2000,16(2):159-180
This article examines the category of "liturgy" in its relation to aesthetics, ethics and politics. It is argued that liturgy occupies a unique mediating position between art and politics, for, on the one hand, it ensures that the political points perpetually beyond itself, and, on the other hand, the artistic is prevented from lapsing into a "magic circle" of compensatory reality or merely "fine" art. Alternative aesthetic formulations, for example, that of Adorno, are examined and shown to be problematic and ultimately nihilistic and unrealizable. By contrast, a liturgical aesthetic is shown to have a genuine ethical practicability. Modernity is then examined. It is argued that late capitalist structures—including (contra Paul Piccone) is apparently opposed structures, such a post-Fordist organicism—can be seen as a kind of anti-liturgy liturgy, or, one might say here, "ritual" (for all the latter term's more dubious post-nineteenth century assumptions can here be assumed), which has produced an entirely self-perpetuating minimal automated subjectivity. Finally, it is concluded that the manifold problems faced by non-liturgical aesthetics and politics can be reduced to this separation of the ideal from the real. This separation is further examined. The lineaments of a specific liturgical tradition—in this case, the Christian—and especially its eucharistic focus—are analyzed, and it is suggested that here one might find suggestions as to a fusion of the ideal and the real, and hence indications of how one might begin to outwit several of the problems in aesthetic and political theory already shown to involve difficulties. 相似文献
27.
Although perceived health risk plays a prominent role in theories of health behavior, its empirical role in risk taking is less clear. In Study 1 (N = 129), 2 measures of drivers' risk-taking behavior were found to be unrelated to self-estimates of accident concern but to be related to self-ratings of driving skill and the perceived thrill of driving. In Study 2 (N = 405), out of a wide range of potential influences, accident concern had the weakest relationship with risk taking. The authors concluded that although health risk is a key feature in many theories of health behavior and a central focus for researchers and policy makers, it may not be such a prominent factor for those actually taking the risk. 相似文献
28.
29.
Kristine L S P McVea 《Health psychology》2006,25(5):558-562
OBJECTIVE: This report reviews the evidence that informs the role of health and mental health care providers in addressing youth smoking cessation. DESIGN: Qualitative literature review. RESULTS: Physicians do not consistently screen adolescents for tobacco use and fail to provide recommended cessation advice. Challenges to addressing smoking cessation include the need for procedures to ensure confidentiality and the existence of competing demands to provide other services. Few published studies have specifically addressed the effectiveness of clinical interventions. Interventions that require return visits or follow-up phone contacts are technically difficult to implement in this population. Successful interventions may require resources not available in nonresearch settings. Most studies have used brief clinical intervention as a control condition, making it impossible to evaluate its effectiveness. CONCLUSION: There is little evidence that supports current clinical smoking cessation guidelines for adolescents. More research is needed to develop inexpensive, efficient clinical interventions that can provide youths access to smoking cessation help. Future challenges include reorganizing clinical systems to offer greater counseling by support staff or in electronic formats and to provide effective booster messages and follow-up care in a population that is difficult to track. 相似文献
30.
An electronic apparatus using infrared beams for monitoring the movements of individual bees under dark conditions is described. The searching behavior of workers in an arena was monitored over 2-h periods. Mean ambulatory velocity for one bee over a distance of 100 mm was 45.6±1.51 mm/sec (n=45). Thigmokinesis and temporal activity patterns are illustrated. 相似文献