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   1733篇
  免费   183篇
  国内免费   374篇
  2290篇
  2024年   5篇
  2023年   30篇
  2022年   48篇
  2021年   43篇
  2020年   75篇
  2019年   67篇
  2018年   72篇
  2017年   73篇
  2016年   67篇
  2015年   47篇
  2014年   74篇
  2013年   141篇
  2012年   96篇
  2011年   145篇
  2010年   99篇
  2009年   112篇
  2008年   130篇
  2007年   190篇
  2006年   150篇
  2005年   138篇
  2004年   76篇
  2003年   50篇
  2002年   37篇
  2001年   35篇
  2000年   37篇
  1999年   35篇
  1998年   20篇
  1997年   16篇
  1996年   11篇
  1995年   17篇
  1994年   20篇
  1993年   17篇
  1992年   15篇
  1991年   14篇
  1990年   9篇
  1989年   12篇
  1988年   8篇
  1987年   4篇
  1986年   6篇
  1985年   7篇
  1984年   6篇
  1983年   3篇
  1982年   5篇
  1981年   7篇
  1980年   4篇
  1979年   7篇
  1975年   2篇
  1974年   2篇
  1960年   1篇
  1931年   1篇
排序方式: 共有2290条查询结果,搜索用时 15 毫秒
151.
152.
The current study manipulated the visual field and the number of senses of the first character in Chinese disyllabic compounds to investigate how the related senses (polysemy) of the constituted character in the compounds were represented and processed in the two hemispheres. The ERP results in experiment 1 revealed crossover patterns in the left hemisphere (LH) and the right hemisphere (RH). The sense facilitation in the LH was in favor of the assumption of single-entry representation for senses. However, the patterns in the RH yielded two possible interpretations: (1) the nature of hemispheric processing in dealing with sublexical sense ambiguity; (2) the semantic activation from the separate-entry representation for senses. To clarify these possibilities, experiment 2 was designed to push participants to a deeper level of lexical processing by the word class judgment. The results revealed the sense facilitation effect in the RH. In sum, the current study was in support of the single-entry account for related senses and demonstrated that two hemispheres processed sublexical sense ambiguity in a complementary way.  相似文献   
153.
Consumer ethics is the moral principles and standards that guide consumers to determine the certain consumption behaviors are ethically right or wrong. Whereas cultural and personal dimensions are crucial constructs affecting individual ethical attitudes and behaviors, few studies consider Confucian dynamism and the role of money in consumer ethics. Confucian dynamism, a cultural dimension based on Confucianism, has played a central role in guiding moral obligations and ethics in human relations in several East Asian countries. Thus, this study tested its hypotheses using a sample of 521 respondents obtained via a systematic random sampling technique. The authors find that individuals with a higher tendency to Confucian dynamism are less tolerant of unethical practices. These findings also show that the role of money partially influences consumer ethical beliefs. Finally, we examine the impact of demographic variables and find age and education affect consideration of ethical values.  相似文献   
154.
The purpose of this study was to assess consumer preferences for predictive genetic testing for Alzheimer disease in the United States. A rating conjoint analysis was conducted using an anonymous online survey distributed by Qualtrics® to a general population panel in April 2011 in the United States. The study design included three attributes: Accuracy (40 %, 80 %, and 100 %), Treatment Availability (Cure is available/Drug for symptom relief but no cure), and Anonymity (Anonymous/Not anonymous). A total of 12 scenarios were used to elicit people’s preference, assessed by an 11-point scale. The respondents also indicated their highest willingness-to-pay (WTP) for each scenario through open-ended questions. A total of 295 responses were collected over 4 days. The most important attribute for the aggregate model was Accuracy, contributing 64.73 % to the preference rating. Treatment Availability and Anonymity contributed 20.72 % and 14.59 %, respectively, to the preference rating. The median WTP for the highest-rating scenario (Accuracy 100 %, a cure is available, test result is anonymous) was $100 (mean?=?$276). The median WTP for the lowest-rating scenario (40 % accuracy, no cure but drugs for symptom relief, not anonymous) was zero (mean?=?$34). The results of this study highlight attributes people find important when making the hypothetical decision to obtain an AD genetic test. These results should be of interests to policy makers, genetic test developers and health care providers.  相似文献   
155.
Rates of teenage pregnancies are higher for African American and Latina adolescents compared to their White peers. African American and Latina adolescent mothers also experience more adversities than their White peers, such as higher rates of depression, school dropout, and economic disadvantage. Furthermore, children of adolescent mothers are at higher risk for adverse development. Parenting stress and social support can impact outcomes experienced by adolescent parents and their children. The present study examined the influence of adolescent mothers’ parenting stress and perceived social support on maternal depression at baseline (6 months after birth), and its impact on infant development 1 year later (18 months after birth). Participants were 180 adolescent mothers of African American or Latino/Hispanic descent. Results suggest that higher levels of parenting stress and less perceived social support were associated with higher levels of depression in the adolescent mothers at baseline. Higher levels of maternal depression were also associated with more developmental delays in infants 1 year post-baseline. Additionally, depression mediated the relationship between parenting stress and later child outcomes. These findings highlight the importance of examining parenting factors such as parenting stress, social support, and maternal depression in ethnic minority adolescent parents, and provide valuable information regarding unique risk and protective factors associated with positive maternal outcomes for ethnic minority adolescent parents and healthy development for their children.  相似文献   
156.
校园欺凌现象在全球范围普遍存在,为有效解决校园欺凌问题,研究一采用《特拉华校园受欺凌量表》、《简易应对方式量表》以及《社会情绪健康量表》对416名5~6年级小学生进行了调查,结果发现,小学生消极应对方式可以显著预测校园受欺凌,社会情绪能力在消极应对方式与校园受欺凌中起调节作用。此基础上,研究二开展基于社会情绪能力的校园受欺凌团体辅导干预研究。结果表明,社会情绪能力的提升可以显著降低校园受欺凌水平。  相似文献   
157.
Xu  Xiaofeng  Nie  Qingqing  Liu  Wang  Huebner  E. Scott  Tian  Lili 《Journal of Happiness Studies》2022,23(6):2805-2826

Life satisfaction is a key indicator of children’s healthy development. Although the developmental changes of life satisfaction during adolescence have been investigated, the developmental trajectories of life satisfaction and related predictors during childhood remain unclear. Thus, the current study aimed to identify the developmental trajectories of life satisfaction covering the period from middle to late childhood as well as to examine the predictive roles of environmental factors (i.e., family dysfunction and basic psychological needs satisfaction at school), personality factors (i.e., neuroticism and extraversion), and their interactions in these developmental trajectories. An accelerated longitudinal design was used with Chinese elementary school students (N?=?1069, 45.8% girls, M age?=?9.43, SD?=?0.95) of 3 cohorts (grade 3, grade 4, and grade 5) on 4 occasions at 6-month intervals. Growth mixture modeling analyses revealed three distinct trajectories of life satisfaction: “High-Stable” (88.8%), “High-Decreasing” (6.8%), and “Low-Increasing” (4.4%). Multivariate logistic regression analyses revealed that family dysfunction and neuroticism served as risk factors for adverse developmental trajectories of life satisfaction; whereas basic psychological needs satisfaction at school served as a protective factor. Furthermore, the interaction between family dysfunction and extraversion suggested that higher levels of extraversion buffered children against the negative effect of family dysfunction on the development of life satisfaction. The identification of three heterogeneous trajectory groups of children’s life satisfaction and key personality and environmental predictors associated with the trajectories suggests that specific interventions need to be tailored to the unique characteristics of the relevant trajectory groups.

  相似文献   
158.
执行功能缺陷是网络成瘾发生、维持和复发的原因之一,以往研究侧重于探讨网络成瘾者注意控制、反应抑制等执行功能成分的损伤状况,而其记忆抑制状况尚不清楚。本研究通过考察网络成瘾大学生的提取诱发遗忘(RIF)来探讨其记忆抑制的特点及RIF的产生机制。结果发现:低网络成瘾个体在高项目竞争强度下表现出显著的RIF,在低项目竞争强度下未产生;高网络成瘾个体在低项目竞争强度下表现出显著的RIF,在高项目竞争强度下未产生。结果表明网络成瘾大学生的记忆抑制能力受损严重,其在低项目竞争强度下易受相关代价与效益问题(CCB)影响而产生干扰性RIF。  相似文献   
159.
In the family‐based prevention science literature, family functioning, defined as positive parenting, parental involvement, family cohesion, family communication, parental monitoring of peers, and parent–adolescent communication, has been shown to ameliorate HIV risk behaviors in Hispanic youth. However, the majority of studies have relied solely on parent or adolescent reports and we know very little about parent–adolescent family functioning discrepancies. Therefore, the purpose of this study was to examine whether and to what extent parent–adolescent discrepancies in family functioning increased the risk of HIV risk behaviors, including substance use and sexual risk behaviors, and whether these associations vary as a function of acculturation and youth gender. A total of 746 Hispanic 8th grade youth and their primary caregivers were included in the study. Structural equation modeling findings indicate that parent–adolescent family functioning discrepancies are associated with an increased risk of Hispanic adolescent HIV risk behaviors, including lifetime and past 90‐day alcohol and illicit drug use, and early sex initiation. In addition, study findings indicate that results vary by acculturation and youth gender. Findings are discussed in the context of existing family‐based research and practice in preventing and reducing HIV risk behaviors among Hispanic youth and their families.  相似文献   
160.
The purpose of this study was to examine whether anxious shyness and regulated shyness, initially identified in the Chinese culture, is found in South Korean children, and to explore whether these two forms of shyness were differentially related to children's psychosocial functioning. Participants were 544 fourth to sixth grade children (251 girls, M age = 11.38 years old) who were recruited from an elementary school in Bucheon City, South Korea. Children's anxious and regulated shyness were measured using peers' nominations and teachers' ratings, whereas their social preference and social impact were assessed using peers' nominations. Parents rated their children's temperamental shyness and effortful control, and children self‐reported their loneliness and interpersonal concerns. The results of confirmatory factor analysis replicated the two factor model of shyness found in previous studies of Chinese children. Anxious shyness and regulated shyness were positively associated and were similarly related to temperamental shyness. Anxious shyness was negatively related to effortful control and social preference, and positively associated with self‐reported loneliness and interpersonal concerns, whereas regulated shyness was positively related to effortful control and social preference and negatively associated with loneliness and social impact. These results were generally consistent with prior Chinese findings and provided preliminary support for the construct validity of anxious and regulated shyness in another Asian culture that emphasizes interdependence and modesty. Copyright © 2013 John Wiley & Sons, Ltd.  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