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   1196篇
  免费   64篇
  1260篇
  2023年   19篇
  2022年   18篇
  2021年   17篇
  2020年   33篇
  2019年   33篇
  2018年   49篇
  2017年   51篇
  2016年   53篇
  2015年   34篇
  2014年   27篇
  2013年   143篇
  2012年   69篇
  2011年   61篇
  2010年   38篇
  2009年   37篇
  2008年   54篇
  2007年   56篇
  2006年   43篇
  2005年   45篇
  2004年   34篇
  2003年   21篇
  2002年   34篇
  2001年   21篇
  2000年   16篇
  1999年   16篇
  1998年   10篇
  1997年   11篇
  1996年   8篇
  1995年   7篇
  1994年   5篇
  1992年   16篇
  1991年   9篇
  1990年   6篇
  1989年   16篇
  1988年   11篇
  1987年   8篇
  1986年   7篇
  1985年   13篇
  1984年   9篇
  1983年   7篇
  1982年   4篇
  1981年   8篇
  1979年   5篇
  1978年   7篇
  1977年   4篇
  1975年   7篇
  1974年   8篇
  1972年   4篇
  1968年   9篇
  1967年   9篇
排序方式: 共有1260条查询结果,搜索用时 15 毫秒
901.
Consumer vulnerability affects billions of consumers worldwide, yet there is no consensus about what constitutes this state or about its consequences for consumers. Indeed, while consumer vulnerability is often invoked in consumer research, it is usually discussed informally, with little conceptual anchoring. The goal of the current work was to advance the field's understanding of consumer vulnerability by (a) reviewing and integrating existing research, (b) extracting common features to develop a comprehensive framework for the concept of consumer vulnerability, and (c) charting paths forward for future research. We begin by defining consumer vulnerability as a state in which consumers are subject to harm because their access to and control over resources are restricted in ways that significantly inhibit their ability to function in the marketplace. We then introduce two lenses through which to identify this state: experience and observation. Next, we delineate the antecedents and consequences of consumer vulnerability and discuss the merits of adopting a view of this state as more global and dynamic. Finally, we use our framework to offer future research considerations.  相似文献   
902.
Abstract

Research suggests that an external focus or cognitive task may improve postural control. Removing attention from movement production may promote automaticity, or the tasks may promote ankle stiffening. To investigate these two theories, twenty older adults stood while performing baseline standing, internal focus, external focus, and two cognitive tasks. Changes in postural control occurred in external focus and cognitive task conditions compared to baseline and internal focus, while no change occurred in cocontraction indices. This suggests that an external focus and cognitive task can improve postural control in older adults. Since no change occurred in cocontraction indices across conditions, this suggests that stiffening cannot explain these changes. Instead, changes could be due to automaticity of sway.  相似文献   
903.

Although numerous studies have shown that religious attendance is associated with greater social support, concerns remain about selection into religious attendance and more supportive relationships. In this paper, we employ data collected from the 2011 Miami-Dade Health Survey (n?=?444) to assess the extent to which the association between religious attendance and social support is due to selection processes related to personality, health behavior, and health status. In our multinomial logistic regression of attendance, we find that the odds of weekly attendance are increased by extraversion and reduced by smoking. We also observe that religious attendance does not vary according to level of agreeableness, self-esteem, alcohol consumption, psychological distress, or physical health. In our regression of support, we find that respondents who attend religious services weekly or more tend to report more social support than respondents who never attend. This association persisted with adjustments for age, gender, race, immigrant status, interview language, education, employment status, household income, financial strain, marital status (parent and respondent), the presence of children, family difficulties, personality (agreeableness, extroversion, and self-esteem), health behavior (smoking, binge drinking, and substance use), and health status (psychological distress, activity limitations, and overall physical health). Across models, the association between weekly attendance and social support is attenuated by no more than 7%. This attenuation is due to personality (extraversion), not health behavior or health status. We conclude that the association between religious attendance and social support is primarily driven by integration processes rather than any selection processes we have considered.

  相似文献   
904.
The purpose of this pilot study was to evaluate the effect of an infant mental health intervention, the Newborn Behavioral Observations system (NBO), versus usual care (UC) on infant neurodevelopment and maternal depressive symptoms in early intervention (EI). This multisite randomized trial enrolled newborns into the NBO (n = 16) or UC group (n = 22) and followed them for 6 months. Outcome measures included the Battelle Developmental Inventory (BDI-2), Bayley Scales of Infants Development (BSID-III), and Center for Epidemiologic Studies Depression Scale (CES-D). The CES-D and BSID-III were collected at 3- and 6-months post EI entry and the BDI-2 was collected at EI entry and 6-months post-EI entry. We estimated group differences [95% CI], adjusting for program characteristics. At 6 months, the NBO group had greater gains in Communication (b = 1.0 [0.2, 1.8]), Self-Care (b = 2.0 [0.1, 3.9]), Perception and Concepts (b = 2.0 [0.4, 3.6]), and Attention and Memory (b = 3.0 [0.4, 6.0]) than the UC group. The NBO group also had greater decline in maternal postnatal depressive symptoms (b = −2.0 [−3.7, −0.3]) than the UC group. Infants receiving the NBO infant mental health intervention had greater gains in cognitive and adaptive functions at 6 months than infants receiving UC. Caregivers receiving NBO care had greater improvements in maternal depressive symptoms than caregivers receiving UC.  相似文献   
905.
Abrupt discontinuation of functional communication training can cause resurgence of challenging behavior. Teaching multiple alternative responses in sequence (serial training) may reduce resurgence, relative to teaching a single alternative. However, previous evaluations of serial training included a different number of response options across comparison conditions. In Experiment 1, we varied both training type (single and serial) and number of response options, and replicated previous findings showing that more resurgence occurred following single training relative to serial training. In Experiment 2, we varied the training type while holding the number of alternative responses constant and obtained no consistent differences in resurgence. In Experiment 3, we varied the number of alternative responses while holding training type constant (i.e., single). More resurgence occurred in the condition with fewer response options, suggesting that the number of available alternative responses, and not explicit serial training of alternatives, was critical to outcomes.  相似文献   
906.
McCullough  Keiko M.  Wong  Y. Joel  Stevenson  Natalie J. 《Sex roles》2020,82(5-6):266-276
Sex Roles - Video games often contain sexist content that may be connected to negative consequences for female video game players, such as internalizing negative attitudes and beliefs about women....  相似文献   
907.
We used reaction time techniques to study individual differences in accessibility of beliefs about the reality of religious targets. Moderately religious people were slower than religious or irreligious people. Religious people were faster than non-religious people. Reaction times to classify religious stimuli are stable over 8 days. We also found that religious people with accessible beliefs have the highest well-being, and that religious beliefs correspond to greater levels of religious behavior when the reality of religious stimuli is accessible. These results further our understanding on natural individual differences in attitude accessibility and add to our understanding of religious beliefs, including their impact.  相似文献   
908.
Southwest US undergraduates (78 female, 72 male) were tested in a laboratory aggressive behavior paradigm involving noise blasts participants could use against another (bogus) same-sex competitor in a point-earning task. Status of the competitor (low vs. high) and expectation to meet the competitor (meet vs. no meet) were experimentally manipulated. A significant gender × aggression proneness × status interaction indicated that aggression-prone men were more likely to aggress against a high status competitor, while aggression-prone women were more likely to aggress against a low status competitor. Interactions of narcissism and sensation seeking with gender and anticipated meeting indicated that men but not women high in these personality traits were more likely to aggress, but only towards competitors they anticipated meeting.  相似文献   
909.
Many animal species use reaching for food to place in the mouth (reach-to-eat) with a hand, and it may be a primitive movement. Although researchers (I. Q. Whishaw, 2005; A. N. Iwaniuk & I. Q. Whishaw, 2000; M. Gentiluci, I. Toni, S. Chieffi, & G. Pavesi, 1994) have described visual guidance of reaching in both normal and brain-injured human and nonhuman primates, researchers have not described the contribution of vision during advance of the limb to grasp food and during withdrawal of the limb with food to the mouth. To evaluate visual contributions, the authors monitored eye movements in young adults as they reached for food with and without vision. Participants visually engaged the target prior to the 1st hand movement and disengaged it as the food was grasped. Visual occlusion slowed limb advance and altered digit shaping but did not affect withdrawal. The dependence on visual control of advance but not withdrawal suggests that the reach-to-eat movement is a composite of 2 basic movements under visual and tactile/proprioceptive guidance, respectively.  相似文献   
910.
This study examined the association between parenting styles and mother and child anxiety. Maternal overinvolvement and negativity/criticism were evaluated during a speech preparation task (N = 135 dyads) and a Five Minute Speech Sample (FMSS) from mothers (N = 155). During the speech task interaction, mothers of anxious children (aged 4–16 years), regardless of their own anxiety, were observed to be more overinvolved than mothers of nonanxious children. Similarly, the FMSS showed that mothers of anxious children (aged 4–17 years) were more overprotective, self-sacrificing, or nonobjective than mothers of nonanxious children, irrespective of maternal anxiety status. No differences in maternal negativity were found on the speech task between any of the groups. However, the FMSS showed that mothers of anxious children were more critical than mothers of nonanxious children, regardless of maternal anxiety status. These results support the relationship between overinvolved, critical parenting and child anxiety, but suggest that maternal anxiety is not associated with increased overinvolvement or criticism. Theoretical implications are discussed.  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