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   545篇
  免费   53篇
  2024年   4篇
  2023年   9篇
  2022年   6篇
  2021年   12篇
  2020年   21篇
  2019年   20篇
  2018年   31篇
  2017年   39篇
  2016年   21篇
  2015年   21篇
  2014年   17篇
  2013年   57篇
  2012年   51篇
  2011年   40篇
  2010年   25篇
  2009年   4篇
  2008年   24篇
  2007年   23篇
  2006年   23篇
  2005年   8篇
  2004年   9篇
  2003年   13篇
  2002年   9篇
  2001年   9篇
  2000年   2篇
  1999年   7篇
  1998年   5篇
  1997年   8篇
  1996年   4篇
  1995年   3篇
  1994年   3篇
  1993年   7篇
  1992年   8篇
  1991年   2篇
  1990年   5篇
  1989年   6篇
  1988年   4篇
  1987年   6篇
  1986年   3篇
  1985年   5篇
  1984年   5篇
  1983年   3篇
  1979年   2篇
  1977年   2篇
  1970年   1篇
  1967年   1篇
  1965年   2篇
  1964年   1篇
  1963年   1篇
  1933年   1篇
排序方式: 共有598条查询结果,搜索用时 31 毫秒
181.
Journal of Child and Family Studies - Childhood chronic illness is associated with deleterious effects on caregivers’ mental health and children’s socio-emotional development. This...  相似文献   
182.

Many empirical studies have found an association between sustainable consumption and well-being. However, the direction of causality between these constructs remains unclear. Well-being could be an antecedent of sustainable consumption or, sustainable consumption a driver of well-being; also, there could be a reciprocal relationship between these two constructs. Alternatively, both well-being and sustainable consumption could be outcomes of another construct that could be masking a relationship between well-being and sustainable consumption. This study aims to advance the well-being and sustainable consumption research by testing these three relationships in a longitudinal study with young consumers (n = 369). The findings show that when controlling for the constructs at Time 1, the relationship between the focal constructs is no longer significant. Results lead to support the hypothesis that sustainable consumption and well-being are explained by a particular trait of the individual, nature relatedness, so that individuals with greater nature relatedness are more likely to adopt a sustainable lifestyle and have greater well-being. Nature relatedness thus acts as a predictor of both focal constructs. This result implies that by nurturing nature relatedness, societies will achieve the double dividend of well-being and sustainability.

  相似文献   
183.
There is evidence that subjective health is an important variable in general health outcomes. It can be an indicator of the individual's overall health status, creating a reliable and valid estimate about health. Quality of life (QoL) assessment can be associated with the individuals' subjective assessment of their own health status. The aim of the present study was to investigate variables associated with subjective perception of health in older inpatients. Ninety elderly inpatients over 60 years old were interviewed. The perception of health assessment (healthy/unhealthy) allocated elders in either of two groups. All the elders answered sociodemographic questions, the WHOQOL-100 and the Beck Depression Inventory (BDI). Comparing the group that considered themselves unhealthy to the other group, the former showed a tendency of worse QoL assessments in five out of six domains investigated. Significant differences were found for the physical and level of independence domains, as well as overall QoL. There was a significant association between health perception and lower intensity of depressive symptoms, as well as better QoL perception in the level of independence domain. This study shows the existence of an association between depressive symptoms and health assessment. It also suggests that the independence dimension is important in the elders' perception of their health status. These findings can help identify cause-effect relations between variables in aging studies involving health indicators and bring new intervention proposals for the elderly.  相似文献   
184.
The relationship between handgrip isometric strength and swimming performance was assessed in the four competitive swimming strokes in swimmers of different age groups and of both sexes. 78 national-level Portuguese swimmers (39 males, 39 females) were selected for this study. Grip strength, previously used as a marker of overall strength to predict future swimming performance, was measured using a hand dynamometer. The best competitive time at 100 and 200 m in all four swimming strokes were converted into 2010 FINA points. Non-parametric tests were used to evaluate differences between groups. Pearson product-moment correlations were computed to verify the association between variables. Handgrip maximum isometric strength was significantly correlated with swimming performance, particularly among female swimmers. Among female age group swimmers, the relationship between handgrip and 100-m freestyle was significant. Handgrip isometric strength seems to be related to swimming performance, especially to 100-m freestyle and in female swimmers. For all other distances and strokes, technique and training probably are more influential than semi-hereditary strength markers such as grip strength.  相似文献   
185.
The purpose of this study was to determine whether or not blind children perseverate during a modified Piagetian A-not-B reaching task, with conditions that employ luminous AB targets and acoustic AB targets. Ten congenitally blind children, ages 1–4 years, with residual vision for light, took part in this study. Behavioral and kinematic data were computed for participants’ reaches, performed in six A trials and in two B trials, in both stimulus conditions. All of the children perseverated in the luminous condition, and none of them perseverated in the condition using acoustic targets. The children tilted their heads in the direction of the target as they reached towards it. However, this coupling action (head-reaching) occurred predominantly in the A trials in the acoustic condition. In the luminous condition, in contrast to the acoustic condition, the children took longer times to initiate the reaching movement. Also, in the luminous condition, the children explored the target surroundings, unlike the acoustic condition, in which they reached straight ahead. For these blind children, sound was more relevant to reaching than was the luminous stimulus. The luminous input caused perseveration in congenitally blind children in a similar way that has been reported in the literature for typically-developing, sighted infants, ages 8–12 months, performing A-not-B tasks with visual inputs.  相似文献   
186.
The main purpose of our study was to examine the impact of positive inter-parental interactions on the conflict management of young adults. Based on social cognitive theory (SCT), it was hypothesized that exposure to interparental positive interactions would mediate the intergenerational transmission of conflict. The findings only partially supported SCT and provided evidence for intergenerational transmission of conflict. However positivity did not buffer this association. Important contributions of this study include a better theoretical understanding of positivity in relationships and evidence for the intergenerational transmission of positive and negative conflict management tactics. Implications for researchers, clinicians, and educators are presented.  相似文献   
187.
Senktide, a potent neurokinin-3 receptor (NK3-R) agonist, increases acetylcholine (ACh) release in the striatum, the prefrontal cortex (Schäble et al., 2011), the amygdala and hippocampus, presumably via postsynaptic mechanisms. A promnestic action of NK3-R agonists has been described in a variety of learning/memory tasks. The memory-enhancing effects of NK3-R agonists and their activating influence on ACh suggest a possible role of the NK3-R in learning and memory via cholinergic modulation. Deterioration of the cholinergic system in the basal forebrain has been associated with learning and memory deficits and cholinergic agents have promnestic effects in a variety of learning paradigms. The anticholinergic drug, scopolamine, a muscarinic ACh receptor antagonist, incurs deficits in a variety of learning tasks and provides a useful tool to investigate the role of the cholinergic systems in mechanisms underlying learning and memory. The aim of this study was to ascertain the effect of the NK3-R agonist, senktide, in the scopolamine-induced deficit model. We hypothesized that senktide treatment would attenuate scopolamine-induced (subcutaneous – s.c. 0.75 mg/kg) memory impairment in three novelty preference paradigms based on spontaneous object exploration: namely object recognition, object–place recognition and object recognition for temporal order. Administration of senktide reversed the scopolamine-induced memory deficits by re-establishing object recognition (s.c. 0.2 mg/kg), object–place recognition (0.2 and 0.4 mg/kg), as well as object recognition for temporal order (0.4 mg/kg) in adult Wistar rats. These results indicate memory enhancing effects of senktide in animals subjected to scopolamine-induced memory impairments and indicate that the promnestic action of NK3-R agonists is mediated by muscarinic cholinergic mechanisms.  相似文献   
188.
Early partial maternal deprivation causes long-lasting neurochemical, behavioral and brain structural effects. In rats, it causes a deficit in memory consolidation visible in adult life. Some of these deficits can be reversed by donepezil and galantamine, which suggests that they may result from an impairment of brain cholinergic transmission. One such deficit, representative of all others, is an impairment of memory consolidation, clearly observable in a one-trial inhibitory avoidance task. Recent data suggest a role of brain histaminergic systems in the regulation of behavior, particularly inhibitory avoidance learning. Here we investigate whether histamine itself, its analog SKF-91844, or various receptor-selective histamine agonists and antagonists given into the CA1 region of the hippocampus immediately post-training can affect retention of one-trial inhibitory avoidance in rats submitted to early postnatal maternal deprivation. We found that histamine, SKF-91844 and the H2 receptor agonist, dimaprit enhance consolidation on their own and reverse the consolidation deficit induced by maternal deprivation. The enhancing effect of histamine was blocked by the H2 receptor antagonist, ranitidine, but not by the H1 receptor antagonist pyrilamine or by the H3 antagonist thioperamide given into CA1 at doses known to have other behavioral actions, without altering locomotor and exploratory activity or the anxiety state of the animals. The present results suggest that the memory deficit induced by early postnatal maternal deprivation in rats may in part be due to an impairment of histamine mediated mechanisms in the CA1 region of the rat hippocampus.  相似文献   
189.
Happiness is a positive phenomenon that is universal in nature and is therefore, pertinent to all human beings. However, the definition of happiness differs from person to person, and varies among cultures, economic status, social connectedness, spiritual upbringing and daily situations. An individual’s contextual perception of happiness can change when subjected to bleak conditions such as incarceration wherein inmates, especially those who are old and are experiencing health impairments are stripped off with their customary source of happiness. Since Filipinos are known to be as “happy people,” this study purports to surface the different facets of what constitute happiness in the context of a penal institution in the Philippine setting. The Q-methodology is the primary design used in the study. It combines the objectivity of quantitative approach with the essence of human experiences as explored in qualitative studies. The participants (P-sample) were twenty elderly inmates suffering from chronic ailments. They were asked to arrange 32 statements (Q-sample), derived from the initial interview, in the Q-sort table based on their degree of agreement, which were then further explicated in the post-sort interviews. The results were then subjected to by-person factor analysis with varimax rotation using the PQ Method version 2.11. Five profiles emerged from the by-person factor analysis, namely: (1) ‘Sense of Affinity’, (2) ‘Sense of Opportunity’, (3) ‘Sense of Indemnity’, (4) ‘Sense of Positivity’ and (5) ‘Sense of Resiliency’. The discussion focused on similarities and differences among profiles regarding the four principal themes (familial, social, internal and spiritual components of happiness) derived from the statements used as the Q-sample. The perception of happiness varies from profile to profile. The differences in views on what constitutes happiness among profiles are more prominent than their said similarities. Most leanings are directed toward the familial and spiritual aspects of happiness however, happiness can also be internally motivated and cognitively construed. While happiness has a direct relationship to an individual’s overall perception of well-being, the nurse, being the primary provider of holistic care, plays a pivotal role in promoting optimum health through awareness, knowledge, and appreciation of vis-a vis an unwavering involvement with the unique and distinct psychological and emotional needs of the elderly inmates characterized by respect, openness, authenticity and inter-subjectivity.  相似文献   
190.
The article investigates the relation between declarative and procedural working memory (WM; Oberauer, 2009). Two experiments test the assumption that representations in the two subsystems are selected for processing in analogous ways. Participants carried out a series of decisions on memorized lists of digits. For each decision, they had to select declarative and procedural representations. Regarding declarative representations, participants selected a memory set and a digit within this set as the input to each decision. With respect to the procedural representations, they selected a task set to be applied to the selected digit and a response within that task set. We independently manipulated the number of lists and the number of tasks to be switched among (one, two, or three; Experiment 1) and preparation time for a list switch (Experiment 2). For three effects commonly observed in task-switch studies, analogues in declarative WM were found: list-switch costs, mixing costs, and residual switch costs. List- and task-switch costs were underadditive, suggesting that declarative and procedural representations are selected separately and in parallel. The findings support the hypothesis of two analogous WM subsystems.  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