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991.
Lammers SE 《The American journal of bioethics : AJOB》2005,5(6):63-4; discussion W14-6
992.
This article reports on the feasibility of using interactive voice response (IVR) technology to obtain daily reports of attitudes
toward alcohol and tobacco use among children 9–13 years of age. Two studies were conducted. The first was an investigation
of the use of IVR technology to obtain daily data from a sample of primary school children over a period of 8 weeks. The second
was an extension of the research to a large sample of primary and secondary school children in urban and rural areas who provided
daily data over a 4-week period. Retention and compliance rates comparable to those obtained with adults were evident in both
studies, supporting the feasibility of this technology with children. The results are discussed in relation to the benefits
of this methodology for health research, particularly for studies of sensitive topics conducted with children and adolescents. 相似文献
993.
Men overestimate the degree of muscularity that is attractive to women, and women overestimate the degree of thinness that is most attractive to men. Consistent with the thesis that sociocultural input influences such body type preferences and beliefs, we postulated that magazines aimed at a male audience would portray a more muscular male body ideal than would magazines aimed at a female audience. Systematic comparison of popular magazines (Cosmopolitan, Men's Health, Men's Fitness, and Muscle & Fitness) revealed that the ideal male body marketed to men is more muscular than the ideal male body marketed to women. We introduce the Physical Trait Overvaluation Hypothesis, which proposes that gender-specific media fuel emphasis on certain body parts in within-gender prestige competitions. The resulting competitive escalation creates a disconnect between the preferences of one gender and the personal aspirations of the other. 相似文献
994.
995.
996.
J. Crocker and L. E. Park (2004) proposed both (a) that the importance of self-esteem lies more in how people strive for it rather than whether it is high or low and (b) that the benefits of pursuing self-esteem are of a limited, short-term nature and are outweighed by the significant costs that entail for functioning in multiple areas. The authors review research that raises questions about the validity of each of these assumptions. They conclude that findings are more consistent with a view in which (a) high self-esteem, or at least the avoidance of low self-esteem, is an important factor contributing to overall health and well-being and (b) the pursuit of self-esteem, when directed toward adaptive ends, can be instrumental in promoting long-term outcomes that are of value to both individuals and society. They also describe an integrative theoretical framework that encompasses both of these possibilities. 相似文献
997.
J. C. Coyne and V. E. Whiffen (1995) reviewed research on personality vulnerability to depression, focusing on S. J. Blatt's (1974, 1990) concepts of dependency and self-criticism and A. T. Beck's (1983) concepts of sociotropy and autonomy. The authors discuss 6 issues raised in that review: (a) the typological or dimensional nature of vulnerability, (b) the theoretical implications of "mixed" vulnerability, (c) the relations of vulnerability to Neuroticism. (d) the potential confounding of vulnerability with concurrent depression, (e) the potential confounding of vulnerability with social context, and (f) the differentiation of dependency from relatedness. The authors conclude that Blatt's and Beck's concepts are continuous, nearly orthogonal dimensions that can be identified and measured independently from Neuroticism, depression, and social context. 相似文献
998.
Vance DE 《Perceptual and motor skills》2004,98(2):647-655
Given pharmaceutical advancements, more people with HIV will be living to old age. Cognitive declines have been observed both during normal aging and in people with HIV; whether there are cumulative cognitive declines in adults aging with HIV remains unknown. Based on current literature, adults aging with HIV may be at risk for psychomotor declines that resemble parkinsonianism. 相似文献
999.
High cognitive effort has been frequently related to better indices of motor learning through the study of many different paradigms. However, automaticity presumably invokes minimal cognitive processing but has often been related to high-level motor performance, which suggests a paradox. The objective of this study was to approach this paradox by examining the viability of the use of different cognitive strategies during practice and performance which promote the benefits of high cognitive effort and automaticity. Members of the university community (14 men and 15 women) divided into 3 groups practiced a discrete precision task. All participants completed four sessions totaling 320 trials and were tested on retention and transfer seven days later. Findings suggest that it is indeed possible to benefit from both effortful and minimal cognitive processing strategies and that they should be used complementarily. 相似文献
1000.
Research has indicated that random physical practice of a motor skill enhances effects of long-term learning more than blocked practice. Moreover, the use of mental rehearsal coupled with physical practice has been shown to accelerate motor skill acquisition in many different contexts and is better than no practice at all. Others have found that some mental rehearsal strategies are better than others for maximizing performance. This study examined how combinations of mental and physical practice schedules affected the learning of a coincidence timing task. 30 college students were randomly assigned to one of four treatment groups involving combinations of imagery and physical practice. Three tasks were utilized, each involving a particular speed (slow, medium, fast) on the Bassin Anticipation Timer. Conclusions were based on a three-way analysis of variance, using type of mental practice, type of physical practice, and sex as between-group factors, conducted separately for acquisition and retention trials. Type of physical practice was significantly related to performance. On the acquisition trials, random practice was associated with larger mean errors than blocked practice; however, the reverse was true for retention trials. There was no significant effect of type of mental practice in either the acquisition or retention phase. Sex was significantly related to performance for the retention trials only, where the 15 men made smaller errors than the 15 women. 相似文献