全文获取类型
收费全文 | 1601篇 |
免费 | 82篇 |
国内免费 | 1篇 |
专业分类
1684篇 |
出版年
2023年 | 22篇 |
2022年 | 13篇 |
2021年 | 25篇 |
2020年 | 36篇 |
2019年 | 42篇 |
2018年 | 57篇 |
2017年 | 52篇 |
2016年 | 69篇 |
2015年 | 33篇 |
2014年 | 48篇 |
2013年 | 176篇 |
2012年 | 75篇 |
2011年 | 81篇 |
2010年 | 42篇 |
2009年 | 47篇 |
2008年 | 54篇 |
2007年 | 66篇 |
2006年 | 56篇 |
2005年 | 43篇 |
2004年 | 45篇 |
2003年 | 37篇 |
2002年 | 40篇 |
2001年 | 26篇 |
2000年 | 26篇 |
1999年 | 17篇 |
1998年 | 14篇 |
1997年 | 17篇 |
1996年 | 17篇 |
1994年 | 10篇 |
1993年 | 11篇 |
1992年 | 23篇 |
1991年 | 23篇 |
1989年 | 12篇 |
1988年 | 20篇 |
1987年 | 14篇 |
1986年 | 14篇 |
1985年 | 31篇 |
1984年 | 16篇 |
1983年 | 10篇 |
1982年 | 10篇 |
1981年 | 12篇 |
1980年 | 10篇 |
1979年 | 17篇 |
1978年 | 15篇 |
1975年 | 19篇 |
1974年 | 11篇 |
1973年 | 16篇 |
1972年 | 10篇 |
1971年 | 10篇 |
1966年 | 15篇 |
排序方式: 共有1684条查询结果,搜索用时 15 毫秒
951.
Nor Diana Mohd Mahudin Tom Cox Amanda Griffiths 《Transportation Research Part F: Traffic Psychology and Behaviour》2012,15(1):38-51
Research on rail passenger crowding often tacitly subscribes to a measurement of crowding based on density (i.e. physical conditions involving space limitations) and rarely considers the possible role psychological factors may play in measuring this construct. This paper describes the development of an instrument that captures the dimensionality of rail passenger crowding and its relationship to the experience of stress and feelings of exhaustion. The proposed instrument is a 20-item self-rating questionnaire consisting of three sub-scales designed to assess subjective crowding experiences among rail users (n = 525). Findings from the factor analyses generally support the hypothesised three-factor structure of the measurement model (evaluation of the psychosocial aspects of the crowded situation, evaluation of the ambient environment of the crowded situation, and affective reactions to the crowded situation). All sub-scales demonstrate excellent internal consistency and construct validity as well as good convergent and discriminant validity values. The instrument was further tested using structural equation modelling to examine the impact of crowding on commuters’ stress and feelings of exhaustion. With the addition of the “passenger density” variable as an indicator of objective measurement of crowding operating in tandem with the crowding sub-scales, the results reveal that: (1) commuters’ evaluations of the psychosocial aspects of the crowded situation and of its ambient environment, alongside their rating of passenger density, significantly predict affective reactions to the crowded situation; (2) these affective reactions, in turn, significantly predict stress and feelings of exhaustion; and (3) evaluations of the psychosocial aspects of the crowded situation and of its ambient environment as well as passenger density do not directly predict stress and feelings of exhaustion. The link between rail passenger crowding and the negative outcomes therefore does not appear as a simple, direct relationship, but is mediated by affective feelings of crowdedness. Overall, these results provide satisfactory psychometric properties for the proposed instrument and support its use as an assessment tool for measuring crowding experience in the rail setting. 相似文献
952.
953.
A growing body of research has examined the potential for positive change following challenging and traumatic events, this is known as posttraumatic growth (PTG). Childbirth is a valuable opportunity to extend previous work on PTG as it allows the role of different variables to be considered prospectively. The aim of this study was to prospectively examine correlates of PTG after birth, including sociodemographic and obstetric variables, social support and psychological distress, using a prospective, longitudinal design. A total of 125 women completed questionnaires during their third trimester of pregnancy and 8 weeks after birth. At least a small degree of positive change following childbirth was reported by 47.9% of women; however, average levels of growth were lower than generally reported in other studies. A regression model of age, type of delivery, posttraumatic stress symptoms during pregnancy and general distress after birth significantly predicted 32% of the variance in growth after childbirth. The strongest predictors of growth were operative delivery (β 0.23-0.30) and posttraumatic stress symptoms in pregnancy (β 0.32). These findings emphasise the importance of assessing pre-event characteristics when considering the development of PTG after a challenging event. 相似文献
954.
Dolan S Martindale S Robinson J Kimbrel NA Meyer EC Kruse MI Morissette SB Young KA Gulliver SB 《Neuropsychology review》2012,22(1):21-34
Posttraumatic stress disorder (PTSD) and mild traumatic brain injury (mTBI) are highly prevalent among Veterans of the conflicts
in Iraq and Afghanistan. These conditions are associated with common and unique neuropsychological and neuroanatomical changes.
This review synthesizes neuropsychological and neuroimaging studies for both of these disorders and studies examining their
co-occurrence. Recommendations for future research, including use of combined neuropsychological and advanced neuroimaging
techniques to study these disorders alone and in concert, are presented. It is clear from the dearth of literature that addiitonal
studies are required to examine and understand the impact of specific factors on neurocognitive outcome. Of particular relevance
are temporal relationships between PTSD and mTBI, risk and resilience factors associated with both disorders and their co-occurrence,
and mTBI-specific factors such as time since injury and severity of injury, utilizing comprehensive, yet targeted cognitive
tasks. 相似文献
955.
Mind perception entails ascribing mental capacities to other entities, whereas moral judgment entails labeling entities as good or bad or actions as right or wrong. We suggest that mind perception is the essence of moral judgment. In particular, we suggest that moral judgment is rooted in a cognitive template of two perceived minds-a moral dyad of an intentional agent and a suffering moral patient. Diverse lines of research support dyadic morality. First, perceptions of mind are linked to moral judgments: dimensions of mind perception (agency and experience) map onto moral types (agents and patients), and deficits of mind perception correspond to difficulties with moral judgment. Second, not only are moral judgments sensitive to perceived agency and experience, but all moral transgressions are fundamentally understood as agency plus experienced suffering-that is, interpersonal harm-even ostensibly harmless acts such as purity violations. Third, dyadic morality uniquely accounts for the phenomena of dyadic completion (seeing agents in response to patients, and vice versa), and moral typecasting (characterizing others as either moral agents or moral patients). Discussion also explores how mind perception can unify morality across explanatory levels, how a dyadic template of morality may be developmentally acquired, and future directions. 相似文献
956.
John C. Begeny Sarah G. Ross Diana J. Greene Rachel C. Mitchell Mary H. Whitehouse 《Journal of Behavioral Education》2012,21(2):134-149
The Helping Early Literacy with Practice Strategies (HELPS) Program was developed by integrating 8 evidence-based fluency-building
instructional strategies into a structured program that can be feasibly implemented by educators. The HELPS Program has been
shown in previous research to significantly improve elementary-aged students’ reading abilities, but the effects of HELPS
have not been evaluated with an important and increasing sub-population of U.S. students, English language learners (ELLs).
As such, the purpose of this control group comparison study was to evaluate HELPS with Latino ELLs. Findings showed that ELLs
who received HELPS scored significantly higher than the control group on standardized measures of fluency and comprehension.
Although this study represents an initial attempt to understand the effects of HELPS with ELLs, the findings have implications
for educators and researchers who work with ELLs. 相似文献
957.
Gavin CF Rubio MD Young E Miller C Rumbaugh G 《Learning & memory (Cold Spring Harbor, N.Y.)》2012,19(1):9-14
Learning induces dynamic changes to the actin cytoskeleton that are required to support memory formation. However, the molecular mechanisms that mediate filamentous actin (F-actin) dynamics during learning and memory are poorly understood. Myosin II motors are highly expressed in actin-rich growth structures including dendritic spines, and we have recently shown that these molecular machines mobilize F-actin in response to synaptic stimulation and learning in the hippocampus. In this study, we report that Myosin II motors in the rat lateral amygdala (LA) are essential for fear memory formation. Pretraining infusions of the Myosin II inhibitor, blebbistatin (blebb), disrupted long term memory, while short term memory was unaffected. Interestingly, both post-training and pretesting infusions had no effect on memory formation, indicating that Myosin II motors operate during or shortly after learning to promote memory consolidation. These data support the idea that Myosin II motor-force generation is a general mechanism that supports memory consolidation in the mammalian CNS. 相似文献
958.
Vanessa E. Cobham Sonja March Alexandra De Young Fiona Leeson Reginald Nixon Brett McDermott Justin Kenardy 《Clinical child and family psychology review》2012,15(4):345-363
Accidental injuries represent the most common type of traumatic event to which a youth is likely to be exposed. While the majority of youth who experience an accidental injury will recover spontaneously, a significant proportion will go on to develop Post-Traumatic Stress Disorder (PTSD). And yet, there is little published treatment outcome research in this area. This review focuses on two key issues within the child PTSD literature—namely the role of parents in treatment and the timing of intervention. The issue of parental involvement in the treatment of child PTSD is a question that is increasingly being recognized as important. In addition, the need to find a balance between providing early intervention to at risk youth while avoiding providing treatment to those youth who will recover spontaneously has yet to be addressed. This paper outlines the rationale for and the development of a trauma-focused CBT protocol with separate parent and child programs, for use with children and adolescents experiencing PTSD following an accidental injury. The protocol is embedded within an indicated intervention framework, allowing for the early identification of youth at risk within a medical setting. Two case studies are presented in order to illustrate key issues raised in the review, implementation of the interventions, and the challenges involved. 相似文献
959.
Msetfi RM Murphy RA Kornbrot DE 《Quarterly journal of experimental psychology (2006)》2012,65(4):632-645
Depressed mood states affect subjective perceptions of time but it is not clear whether this is due to changes in the underlying timing mechanisms, such as the speed of the internal clock. In order to study depression effects on time perception, two experiments using time discrimination methods with short (<300?ms) and long (>1,000?ms) durations were conducted. Student participants who were categorized as mildly depressed by their scores on the Beck Depression Inventory were less able than controls to discriminate between two longer durations but were equally able to discriminate shorter intervals. The results suggest that mildly depressed or dysphoric moods do not affect pacemaker speed. It is more likely that depression affects the ability to maintain attention to elapsing duration. 相似文献
960.