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171.
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Epidemiology has and continues to play a vital role in furthering our understanding of risks for disease development. Large scale studies provide the necessary statistical power to identify biological and environmental factors associated with disease onset and severity. However, association does not confirm causality and in theoretical terms, epidemiology is somewhat limited. In this editorial, we argue that bringing together the methodological strengths of epidemiology with the theoretical rigour of psychology enables researchers to go beyond risk-finding and develop causative [or explanatory] models of disease development which pave the way for directed, evidence-based interventions to improve health.  相似文献   
173.
A number of models of behaviour have been applied to contraception use including subjective expected utility theory and social cognition models. Whilst correlates of contraception use have been identified, the limitations of these models include their failure to consider either contextual factors or changes in contraception use over time. Researchers have called for integrated and dynamic models of contraception use, which can be related to the changing contraception use of individual women and can also be readily operationalised to explore within and between subject differences in contraception use. The present study therefore used a qualitative methodology to explore women's contraceptive histories and to enable women to define the issues from their perspectives, resulting in a model of contraception use that is firmly located within the context of their own lives and allows an investigation of the factors and processes involved in changes in contraception use/non-use over time. This model conceptualises the predictors of contraception use in terms of the meaning and importance of a range of social goals, perceptions of vulnerability and constraints on or facilitators of contraception. Further the dynamic nature of these factors is described and it is illustrated how these core components vary over time according to situation, experience, and new information. The paper outlines the relevance of the findings for different models of decision-making processes and highlights the way that the model addresses the limitations of previous approaches.  相似文献   
174.
Using a combination of atomic-resolution high-angle annular dark-field (HAADF) Z-contrast imaging and ab initio calculations, atomic models of clusters 2 nm in diameter and 0.8 nm in height are proposed for the Al–Co–Ni pentagonal quasicrystal. This quasicrystal has 5-fold symmetry (the so-called 5f state) without superstructures, and is one of numerous modifications of the Al–Co–Ni decagonal quasicrystal. HAADF results reveal that the two-dimensional quasi-periodic lattice contains mainly Penrose pentagonal tiling. The centres within the decorated pentagonal tiles, i.e. the so-called pentagonal super-clusters, show structural characteristics having both a satellite-orbit shape and a pentagon-symmetry shape. The proposed atomic models, based directly on the HAADF images, are subjected to ab initio total energy calculations. After relaxation, the calculations demonstrate that the models with 5-fold symmetry are energetically more favourable than those with 10-fold symmetry.  相似文献   
175.
自杀是由严重心理危机导致的行为.通过描述自杀高危人群存在的时代状况,从社会学与心理-精神病学的维度分析了高危人群的自杀成因,进而对其自杀前的异常言行表现、自杀的方式及当前各种预防措施进行讨论.同时,对中国文化语境下的自杀及其预防展开了反思与展望.  相似文献   
176.
This study examined the helping behavior of participants with high (High-P; 15 males, 13 females) and low (Low-P; 14 males, 16 females) psychopathic traits without their awareness. In the first of three tests, we found Low-P participants offered more help to an apparently lost female confederate than High-P participants. In the second test, High-P compared to Low-P males offered more help to an “injured” female experimenter, the reverse was true for females. In the third test, High-P compared to Low-P females offered more help to a female confederate who had apparently dropped papers they were carrying; whereas the reverse was true for males. Our preliminary findings indicate that context, gender and psychopathic traits interact and impact helping behavior.  相似文献   
177.
It seems natural to think that Carnapian explication and experimental philosophy can go hand in hand. But what exactly explicators can gain from the data provided by experimental philosophers remains controversial. According to an influential proposal by Shepherd and Justus, explicators should use experimental data in the process of ‘explication preparation’. Against this proposal, Mark Pinder has recently suggested that experimental data can directly assist an explicator’s search for fruitful replacements of the explicandum. In developing his argument, he also proposes a novel aspect of what makes a concept fruitful, namely, that it is taken up by the relevant community. In this paper, I defend explication preparation against Pinder’s objections and argue that his uptake proposal conflates theoretical and practical success conditions of explications. Furthermore, I argue that Pinder’s suggested experimental procedure needs substantial revision. I end by distinguishing two kinds of explication projects, and showing how experimental philosophy can contribute to each of them.  相似文献   
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Sexually transmitted infections and (STIs) unintended pregnancies are contemporary public health concerns. Understanding factors (e.g. knowledge, attitudes and skills) influencing sexual behaviours of university students are critical to develop targeted and tailored risk-reduction interventions for this vulnerable population. Thus, the goals of this study were to describe sexual behaviours and analyze differences between genders for sexual behaviours; to identify whether differences exist between genders and age groups regarding knowledge, attitudes and skills concerning contraceptive methods and STIs, and to evaluate the association of knowledge with attitudes and skills with sexual behaviour among university students in Portugal. The sample included 3278 students. Results show that the majority were sexually active and use condoms and oral contraceptives. In general, university students have high knowledge, positive attitudes and skills about contraception and STIs. Gender analyses indicated that women had greater knowledge, and more favourable attitudes, and higher skills toward contraceptive and STI preventive behaviour College students, in particular, face new challenges in sexual health and would benefit from more comprehensive education aimed at promoting healthy decision-making about family planning and STI prevention.  相似文献   
180.
The negative impact of alliance ruptures on clients’ experiences within the therapeutic process is well documented. One such negative influence may include clients’ hope for counseling as a helpful process. This study used a mixed methods design to explore how alliance ruptures are related to hope for change through counseling. Quantitative data (N = 105) indicated that those who experienced ruptures reported lower levels of the components of hope for change through counseling, (a) pathways and agency, and (b) goal identification. More frequent ruptures and rupture repairs were significantly related to participants’ (n = 35) pathways and agency. Phenomenological analysis of qualitative participants’ (N = 5) experiences elicited 218 meaning units grouped into four themes: disengagement and mistrust in therapy, deepened distress, questioning one’s hope for and belief in therapy, and resilience for therapy. Qualitative and quantitative data indicate that alliance ruptures are related to lower degrees of hope for change through counseling. Results suggest that clients’ perceptions of ruptures fostered disengagement and mistrust of therapists. However, when therapists act to repair ruptures, they may effectively re-engage some degree of hope for change through counseling in clients. Lastly, the role of clients’ persistence in therapy despite experiencing ruptures is discussed.  相似文献   
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