全文获取类型
收费全文 | 640篇 |
免费 | 76篇 |
出版年
2024年 | 1篇 |
2023年 | 18篇 |
2022年 | 9篇 |
2021年 | 7篇 |
2020年 | 44篇 |
2019年 | 11篇 |
2018年 | 9篇 |
2017年 | 42篇 |
2016年 | 35篇 |
2015年 | 24篇 |
2014年 | 40篇 |
2013年 | 95篇 |
2012年 | 30篇 |
2011年 | 27篇 |
2010年 | 26篇 |
2009年 | 40篇 |
2008年 | 28篇 |
2007年 | 14篇 |
2006年 | 29篇 |
2005年 | 10篇 |
2004年 | 14篇 |
2003年 | 8篇 |
2002年 | 10篇 |
2001年 | 3篇 |
2000年 | 8篇 |
1999年 | 5篇 |
1998年 | 3篇 |
1997年 | 8篇 |
1996年 | 12篇 |
1995年 | 6篇 |
1994年 | 7篇 |
1993年 | 8篇 |
1992年 | 7篇 |
1991年 | 13篇 |
1990年 | 8篇 |
1989年 | 7篇 |
1988年 | 6篇 |
1987年 | 7篇 |
1986年 | 6篇 |
1985年 | 4篇 |
1984年 | 3篇 |
1982年 | 2篇 |
1981年 | 1篇 |
1979年 | 5篇 |
1978年 | 5篇 |
1977年 | 9篇 |
1971年 | 1篇 |
1946年 | 1篇 |
排序方式: 共有716条查询结果,搜索用时 15 毫秒
91.
Studies of the development of mental rotation have yielded conflicting results, apparently because different mental rotation tasks draw on different cognitive abilities. Children may compare two stimuli at different orientations without mental rotation if the stimuli contain orientation-free features. Two groups of children (78 6-year-olds and 92 8-year-olds) participated in an experiment investigating development of the ability to mentally rotate and the ability to recognize and use orientation-free features. Children compared two stimuli, one upright and one rotated, and responded as quickly as possible indicating whether the stimuli were the same or different. The stimuli were either two panda bears or two ice-cream cones with three scoops of ice-cream of different colors. The panda bears were either identical or mirror images. The cones were either identical, mirror images, or non-mirror images. Response times increased linearly as a function of the angle of orientation when stimuli were the same and when the stimuli were mirror images. But response times were much less dependent on angle of orientation for non-mirror image stimuli. Children as young as 6 years recognized orientation-free stimulus features and responded without mentally rotating when the task permitted this strategy. 相似文献
92.
Paolo Bertrando Gianfranco Cecchin Massimo Clerici Jutta Beltz Alessandra Milesi Carlo L. Cazzullo 《Journal of Family Therapy》2006,28(1):81-102
This article presents the results of a pilot study carried out on families of people with a diagnosis of schizophrenia (high‐frequency users of psychiatric services) using a standardized version of systemic family intervention based on the Milan Approach (‘Circular Interview’). We used expressed emotion (EE) to compare and assess two homogeneous samples of families, a treatment group (n = 10) and a control group (n = 8). We found that families participating in circular interviews showed a reduction in criticism, while 30% of their members with a diagnosis of schizophrenia relapsed. Families not receiving treatment showed no changes in EE levels, while 62.5% of their members with a diagnosis of schizophrenia relapsed. Although the difference in relapse rates is not statistically significant, these results justify further studies on the use of nondirective systemic intervention with families of people with a diagnosis of schizophrenia. 相似文献
93.
The fuzzy perspective in statistical analysis is first illustrated with reference to the “Informational Paradigm” allowing
us to deal with different types of uncertainties related to the various informational ingredients (data, model, assumptions).
The fuzzy empirical data are then introduced, referring to J LR fuzzy variables as observed on I observation units. Each observation is characterized by its center and its left and right spreads (LR1 fuzzy number) or by its left and right “centers” and its left and right spreads (LR2 fuzzy number). Two types of component models for LR1 and LR2 fuzzy data are proposed. The estimation of the parameters of these models is based on a Least Squares approach, exploiting
an appropriately introduced distance measure for fuzzy data. A simulation study is carried out in order to assess the efficacy
of the suggested models as compared with traditional Principal Component Analysis on the centers and with existing methods
for fuzzy and interval valued data. An application to real fuzzy data is finally performed.
We would like to express our gratitude to the Editor, the Associate Editor, and the Referees whose comments and suggestions
improved significantly the quality of the paper. 相似文献
94.
Maurizio Pompili Marco Innamorati David Lester Serena Brunetti Roberto Tatarelli Paolo Girardi 《Personality and individual differences》2007,43(8):2047-2056
The present study investigated the association of impulsivity, aggression and self-efficacy with protective factors against suicide. The study population consisted of 300 Italian university students (141 males, 159 females); mean age 24.2 (SD = 3.01). Participants were assessed by means of the Reasons for Living Inventory, the Aggression Questionnaire, the Barratt Impulsiveness Scale, and the General Self-Efficacy Scale. Correlations between reasons for living and aggression and impulsivity scores were weak. However, for those individuals with high self-efficacy, aggression and impulsivity were associated with stronger reasons for living. These results support the possibility that increasing general self-efficacy could be a useful target for interventions directed toward suicide prevention in individuals with problems in emotional control. 相似文献
95.
Assoc. Prof. Imre Szecsödy MD PhD 《Forum der Psychoanalyse》2007,23(4):393-401
The manifold functions of a supervisor in following the course of complex processes together with the trainee, are: ? to keep the goals of the supervision in view, ? to establish a teaching alliance and to support the wish and ambitions of the candidate to learn, ? to build a platform for the complex interactions with the trainee with regard to the dynamics of the training situation and keeping in mind the institutional influences, ? to lay down the setting for the work, ? to explore and to reflect how transference and counter-transference influence the interaction between patient and analyst as well as between trainee and supervisor, ? to examine these interactions together focussing continuously on the interaction between candidate and patient, and to encourage the candidate to do the same on his own, ? to continuously formulate hypotheses about the core conflict, the transference phenomena and resistance of the patient, ? to explore and reflect on the cooperative work. 相似文献
96.
Carmelo Ardito Paolo Buono Maria Francesca Costabile Rosa Lanzilotti Antonio Piccinno 《Knowledge, Technology, and Policy》2009,22(1):79-86
Interaction design of mobile systems is a complex activity because it requires considering new usability and user experience
aspects in order to exploit the peculiar characteristics of mobile devices, such as their pervasive and ubiquitous nature.
This paper discusses issues about designing, developing and evaluating mobile systems. Italy has a rich cultural heritage,
and the focus in this study is on the design of systems that enable interactive exploration of historical sites, not only
for enhancing the user experience but also for learning purposes. The experience of the researchers at the Interaction, Visualisation
and Usability lab, University of Bari, Italy, in designing a mobile learning system, called Explore!, which supports young
students learning ancient history during a visit to archaeological parks, is reported. The evaluation of Explore! through
systematic field studies shows that the adopted approach is able to transform the visit to archaeological parks into a more
complete and culturally rich experience. 相似文献
97.
98.
Fréaadéric Slama MD Bénédicte Dehurtevent MD Jean‐Daniel Even MD Aimé Charles‐Nicolas MD Nicolas Ballon MD PhD Rémy Slama MD 《Suicide & life-threatening behavior》2008,38(6):720-727
Research on vulnerability factors among ethnic groups, independent of primary psychiatric diagnosis, may help to identify groups at risk of suicidal behavior. French African Caribbean general psychiatric patients (N = 362) were recruited consecutively and independently of the primary psychiatric diagnosis. Demographic and clinical characteristics and lifetime history of suicide attempts were recorded. Sixty‐five patients (18%) had a history of at least one suicide attempt. Presence of professional qualifications, children, poor social contacts, treatment with benzodiazepine at inclusion, and poor treatment compliance were all associated with a lifetime history of suicide attempts. 相似文献
99.
Cynthia A. Claassen PhD Thomas Carmody PhD Robert Bossarte PhD Madhukar H. Trivedi MD Stephen Elliott MD Glenn W. Currier MD MPH 《Suicide & life-threatening behavior》2008,38(6):637-649
Fatal and nonfatal intentional self‐harm events in eight U.S. states were compared using emergency department, hospital, and vital statistics data. Nonfatal event rates increased by an estimated 24.20% over 6 years. Case fatality ratios varied widely, but two northeastern states' total event rates (fatal plus nonfatal) were very high (New Hampshire 206.5/100,000 person years; Massachusetts 166.7/100,000). Geographic context did not uniformly impact the likelihood of self‐harm across event types. The state‐level public health burden posed by such acts cannot, therefore, be accurately estimated from either mortality or morbidity data alone. 相似文献
100.
Martin Voracek DSc DMSc PhD Lisa Mariella Loibl BSc Viren Swami PhD Mona Vintilǎ PhD Kairi Kõtlves PhD Dhachayani Sinniah MD Subash Kumar Pillai MD Subramaniam Ponnusamy MD Gernot Sonneck MD Adrian Furnham DLitt DSc PhD David Lester PhD 《Suicide & life-threatening behavior》2008,38(6):688-698
The genetics of suicide is increasingly recognized and relevant for mental health literacy, but actual beliefs may lag behind current knowledge. We examined such beliefs in student samples (total N = 686) from Estonia, Malaysia, Romania, the United Kingdom, and the United States with the Beliefs in the Inheritance of Risk Factors for Suicide Scale. Cultural effects were small, those of key demographics nil. Several facets of construct validity were demonstrated. Marked differences in perceived plausibility of evidence about the genetics of suicide according to research design, observed in all samples, may be of general interest for investigating lay theories of abnormal behavior and communicating behavioral and psychiatric genetic research findings. 相似文献