首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1568篇
  免费   524篇
  国内免费   172篇
  2024年   8篇
  2023年   27篇
  2022年   60篇
  2021年   70篇
  2020年   107篇
  2019年   98篇
  2018年   109篇
  2017年   113篇
  2016年   112篇
  2015年   70篇
  2014年   76篇
  2013年   253篇
  2012年   92篇
  2011年   92篇
  2010年   73篇
  2009年   78篇
  2008年   67篇
  2007年   100篇
  2006年   113篇
  2005年   102篇
  2004年   66篇
  2003年   61篇
  2002年   51篇
  2001年   27篇
  2000年   29篇
  1999年   16篇
  1998年   22篇
  1997年   19篇
  1996年   15篇
  1995年   18篇
  1994年   17篇
  1993年   8篇
  1992年   9篇
  1991年   7篇
  1990年   7篇
  1989年   2篇
  1988年   2篇
  1987年   2篇
  1986年   3篇
  1985年   15篇
  1984年   2篇
  1983年   3篇
  1982年   2篇
  1980年   4篇
  1979年   9篇
  1978年   7篇
  1977年   13篇
  1976年   8篇
排序方式: 共有2264条查询结果,搜索用时 15 毫秒
41.
The increase in the number of older adult drivers in developed countries has raised safety concerns due to the decline in their sensory, motor, perceptual, and cognitive abilities which can limit their driving capabilities. Their driving safety could be enhanced by the use of modern Automated Driver Assistance Systems (ADASs) and might totally resolved by full driving automation. However, the acceptance of these technologies by older adult drivers is not yet well understood. Thus, this study investigated older adult drivers’ intention to use six ADASs and full driving automation through two questionnaires with 115 and 132 participants respectively in Rhode Island, USA. A four-dimensional model referred to as the USEA model was used for exploring older adult drivers’ technology acceptance. The USEA model included perceived usefulness, perceived safety, perceived ease of use, and perceived anxiety. Path Analysis was applied to evaluate the proposed model. The results of this study identified the important factors in older adult drivers’ intention to use ADASs and full driving automation, which could assist stakeholders in improving technologies for use by older drivers.  相似文献   
42.
Older adults are more likely to get severely injured or die in vehicle crashes. Advanced driver-assistance systems (ADAS) can reduce their risk of crashes; however, due to the lack of knowledge and training, usage rate of these systems among older drivers is limited. The objective of this study was to evaluate the impact of two ADAS training approaches (i.e., video-based and demonstration-based training) on older drivers’ subjective and objective measures of mental workload, knowledge and trust considering drivers’ demographic information. Twenty older adults, balanced by gender, participated in a driving simulation study. Results indicated that the video-based training might be more effective for females in reducing their mental workload while driving, whereas the demonstration-based training could be more beneficial for males. There was no significant difference between the video-based and demonstration-based trainings in terms of drivers’ trust and knowledge of automation. The findings suggested that ADAS training protocols can potentially be more effective if they are tailored to specific driver demographics.  相似文献   
43.
尽管社交焦虑个体被认为存在情绪调节灵活性的不足,但至今尚不清楚这种不足究竟在于难以灵活选择策略,还是难以灵活使用策略,抑或二者兼有?对此,本研究采用情绪调节策略选择任务考察了37名高社交焦虑大学生和29名低社交焦虑大学生在面对社交-非社交情绪图片时对认知重评-回避策略的选择模式和使用效果。结果发现:在面对社交情绪图片时,高社交焦虑被试比低社交焦虑被试更少选择认知重评,而更多选择回避;在面对非社交情绪图片时,两组被试对两种策略的选择模式无显著差异。同时,无论面对社交还是非社交情绪图片,两组被试对两种策略的使用效果也无显著差异。以上结果表明,相比低社交焦虑个体,高社交焦虑个体只有在面对社交情绪刺激时才存在情绪调节灵活性的不足,且这种不足主要在于难以灵活选择策略,而非难以灵活使用策略。  相似文献   
44.
卢凤  卢凤 《心理科学》2021,(3):737-744
为了考察信息输入方式、文本类型和测题类型对聋生语篇理解的影响,研究通过录像呈现,以口语、手语、书面语三种输入方式向学语前极重度七、八、九年级聋生呈现叙述性和描述性两种文本类型的语篇信息,并要求其完成理解测试。结果显示:输入方式对聋生语篇理解的效率存在影响,书面语成绩最高且速度最快,依次为手语、口语,文本类型和测题类型对该影响有调节作用。结果表明输入方式是聋生语篇理解的主要影响因素,文本和测题类型是调节因素。  相似文献   
45.
为探究感恩对初中生合作水平的影响,本研究采用追踪调查与实验相结合的方法,通过两个研究分别探究了特质感恩与内在的合作倾向,状态感恩与外在的合作行为之间的关系。结果发现:(1)初中女生的特质感恩、人物取向感恩显著高于男生;初一下的合作倾向显著低于初一上、初二上时期;(2)初中生的特质感恩水平能显著正向预测合作倾向,状态感恩的唤起会增加公共物品困境中的合作行为。  相似文献   
46.
The role played by the neonatal 5-hydroxytryptamine (5HT) system in the organization and sexual differentiation of adult agonistic behavior was investigated in rats. Focus was on the 5HT2 receptor subtype, which has been demonstrated to be involved in agonism control in the adult. 5HT2 activity was experimentally manipulated by administration of a specific agonist [1-(2, 5-dimethoxy-4-iodophenyl)-2-aminopropane HCl (DOI)] or antagonist (ritanserin) during the second week of life, when serotonin is known to concur to anatomical and behavioral sexual differentiation. Interactions between early 5HT2 activity, genetic sex, and neonatal circulating testosterone (T) were studied by administering the ligands to males, females, and androgenized females. At adulthood, the animals were tested for both aspects of agonism, i. e., aggression and defense, in a 20-min confrontation with an unfamiliar conspecific of the same sex, age, body weight, and social experience. Neonatal administration of the 5HT2 antagonist ritanserin increased aggression independently of sex; it also increased defense, but this effect was confined to males. The agonist DOI had no effect on aggression, but enhanced defense in males and androgenized females, with an effect which depended therefore more on neonatal T than genetic sex. Females appeared in general less sensitive to neonatal 5HT2 manipulation than both androgenized females and males; this suggests that neonatal T is crucial for experimental modifications of neonatal 5HT2 activity to have any consistent effect on adult agonistic behavior. On the other hand, effects observed in males and androgenized females were dependent on the behavior considered and the drug administered. This was especially evident for defense, enhanced by ritanserin in males only, and in both males and androgenized females by DOI. Neonatal 5HT2 activity seems therefore to play a role in the modulation of adult agonistic behaviors, which depends on the behavior considered and is under multiple control of genetic sex and hormonal neonatal substrate. © 1994 Wiley-Liss, Inc.  相似文献   
47.
48.
Healthy romantic relationships entail understanding the needs of the self and other when interpreting conflict events. Yet how couples make meaning around specific conflicts and their capacity to reflect on their own and their partners’ unmet needs is understudied. Using narratives, we examined destructive (e.g., extreme anger and break-up anxiety) and constructive (e.g., perspective taking) interpretations of past romantic conflicts in 80 emerging adult heterosexual couples and the extent to which such interpretations varied by viewpoint and gender. Couple members were interviewed separately about two conflict episodes in which their partner did not meet their needs (victim viewpoint) and two episodes in which they did not meet their partners’ needs (perpetrator viewpoint). As anticipated, destructive interpretations were more evident in the victim viewpoint and for female couple members. In contrast, within constructive interpretations, the use of insight was greater in the perpetrator than the victim viewpoint. Although perspective taking was expected to be more common in the perpetrator viewpoint and in female narratives, this was not the case, as this type of constructive interpretation was infrequent in narratives about conflict. The findings revealed aspects of meaning making that might be useful to mental health professionals concerned with building skills to improve romantic competence in emerging adult couples.  相似文献   
49.
Current research supports clear relationships between parental psychopathology, parental maltreatment, and emerging adult child psychopathology. Less research has examined how the role of the parent–child relationship influences these existing associations. The current study tested two models that examined the moderating effect of parent–child relationship quality on parental psychopathology and emerging adult mental health as well as the effect on parental maltreatment and emerging adult mental health. It was expected that high parent–child relationship quality would buffer against the negative effects of parental psychopathology and maltreatment while enhancing the effects of functional parenting characteristics. Participants included 1,452 emerging adults, predominantly Caucasian (73.3%) college students who completed surveys on their mental health, recent experienced maltreatment, and their parents’ mental health problems. Results suggested lowest rates of mental health problems for emerging adults were associated with higher parent–child relationship quality and lower parental psychological problems, whereas negative outcomes were associated with higher parental psychopathology, regardless of parent–child relationship quality. Additionally, physical maltreatment was associated with lower rates of mental health concerns in the context of higher mother-daughter relationship quality. Results emphasize the continuing impact of the parent–child relationship, particularly the mother-daughter relationship, on emerging adults’ mental health. Moreover, the current study demonstrates the continuing influence of parents on their emerging adult children.  相似文献   
50.
This paper examines refugee students' experiences in the Austrian mainstream school system. It highlights four areas: school connectedness, social exclusion, support systems and friendships. In the study, 55 refugee students between 8 and 21 years old enrolled in primary and secondary education participated in a semi-structured interview. Data were analysed with directed qualitative content analysis, whereby codes were created deductively and inductively. Students stressed the importance of schooling in order to prosper in the future, particularly through language acquisition. Peers and bilingual teachers played an important role in their efforts to learn German and develop feelings of belonging in the school system. While language acquisition was important for the students, they indicated that other support measures (i.e., remedial education) were largely absent. Further, half of the students reported bullying experiences (verbal, social and physical) associated with their refugee status, language proficiency and religious affiliation. This study has implications for school professionals. The scope of support refugee students receive at school must be broadened, forced migration should be addressed in school in order to counteract negative effects of bullying students receive due to their refugee status and school connectedness can be promoted by hiring staff from diverse cultural backgrounds.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号