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   2298篇
  免费   107篇
  国内免费   18篇
耳鼻咽喉   22篇
儿科学   174篇
妇产科学   30篇
基础医学   520篇
口腔科学   14篇
临床医学   252篇
内科学   84篇
皮肤病学   4篇
神经病学   408篇
特种医学   14篇
外科学   67篇
综合类   219篇
预防医学   441篇
眼科学   7篇
药学   132篇
中国医学   12篇
肿瘤学   23篇
  2023年   33篇
  2022年   46篇
  2021年   73篇
  2020年   73篇
  2019年   73篇
  2018年   67篇
  2017年   88篇
  2016年   90篇
  2015年   57篇
  2014年   160篇
  2013年   170篇
  2012年   164篇
  2011年   164篇
  2010年   118篇
  2009年   119篇
  2008年   129篇
  2007年   130篇
  2006年   127篇
  2005年   63篇
  2004年   77篇
  2003年   56篇
  2002年   47篇
  2001年   46篇
  2000年   21篇
  1999年   26篇
  1998年   23篇
  1997年   18篇
  1996年   22篇
  1995年   14篇
  1994年   14篇
  1993年   16篇
  1992年   8篇
  1991年   2篇
  1990年   9篇
  1989年   11篇
  1988年   4篇
  1987年   6篇
  1986年   6篇
  1985年   12篇
  1984年   10篇
  1983年   5篇
  1981年   9篇
  1980年   2篇
  1979年   3篇
  1975年   2篇
  1973年   1篇
  1972年   1篇
  1971年   1篇
  1969年   1篇
  1968年   2篇
排序方式: 共有2423条查询结果,搜索用时 15 毫秒
1.
2.
3.
Most scholars consider gratitude as a moral emotion, with only few seeing it as a character trait. As a result, no systematic mechanism has ever been attempted to develop gratitude in children. Given the social issue of widespread lack of gratitude in the one-child generations of China, this article attempts to outline a mechanism of parental moral education for gratitude development. The mechanism is underpinned by love, induction and discipline; and theoretically justified in accordance with key psychological and sociological theories, such as Piaget's theory of moral development, Kohlberg's moral stages theory, attachment theory, Hoffman's internalisation theory, Rest's social justice theory and Baumrind's parenting styles theory. The benefits and potential risks of each strategy of the mechanism are addressed.  相似文献   
4.
While factors such as gender and SES have been studied as moderators of stress for children, their perceptions of control have received little attention. In the current study, children's domain-specific perceptions of their control during marital conflict were investigated as potential moderators of the impact of family stress on children's behavior problems, and perceptions of competence. Ninety-four children aged 6-12 years and mothers from families ranging in level of parental conflict from nondiscordant to discordant to physically violent were interviewed. Multiple regression analyses revealed that higher levels of conflict control beliefs acted as compensatory moderators of stress, being associated with lower levels of problem behaviors across stress levels. However, higher conflict control beliefs acted as vulnerability moderators with regard to children's perceptions of competence.  相似文献   
5.
This paper reports on some aspects of interactions of parents with their children in Hong Kong. In particular some of the child rearing practices and their educational implications are presented. The study is an interview based research project in which 130 parents of children between the ages of birth-12 years gave their views about a range of issues including what they want for their child (expectations), how they discipline their child, who the parent goes to for advice on child rearing, how much homework the child does each day. The paper sheds some light on the difficult task of rearing children in a situation where traditional family practices are changing and where pre-schools and schools work in very formal ways.  相似文献   
6.
The purpose of this study was to estimate the change in overweight and obesity prevalence and the influence of socioeconomic status and parental obesity on overweight and obesity of children and adolescents in the Czech Republic. The roles of family history of obesity, dietary factors and physical activity were evaluated. The quota sample of 1,417 children and adolescents aged 6.00–17.99 years was examined in November 2005 as a part of the survey Lifestyle and Obesity. The quota sample was nationally representative, and subjects were selected according to the gender, age, region, size of residential location and education of parents. In the subjects weight, height and waist circumferences were measured and BMI was calculated. Food intake and physical activity were estimated by food frequency and physical activity questionnaires. The results were compared with the data from the 6th National Anthropological Survey of Children and Adolescents 2001, the Czech Republic. The data was evaluated by Pearson’s chi-square test and by linear regression analysis with backward factor reduction. Enhancing prevalence of obesity was found in younger age categories in comparison with the year 2001. Parental overweight and obesity significantly increased the risk of overweight and obesity. BMI in children (6–12.99 years) was associated with the intake of sweetened carbonated drinks and potatoes including fried ones (positive association) and low-sugar carbonated drinks and physical activity (negative association). In adolescents (13–17.99 years) BMI was associated with parental obesity, fat meat intake, time spent on the computer (positive association) and fish intake and physical activity (negative association). The results show an increase in obesity prevalence in younger children in the Czech Republic. Parental obesity significantly enhanced the risk ratio of obesity predominantly in adolescents.  相似文献   
7.
目的 探讨强迫症患者的防御机制、父母教养方式及其个性特征。方法 采用防御方式问卷 (DSQ)、父母养育方式评价量表 (EMBU)及艾森克个性问卷 (EPQ)对 36例强迫症患者进行了问卷调查 ,并与 36例正常受试者加以比较。结果 ①强迫症组中间型和不成熟防御机制因子分均明显高于正常对照组 (P <0 0 1) ,而成熟防御机制因子分则明显低于正常对照组 (P <0 0 5 ) ;②强迫症组父母的情感温暖因子分低 ,而父母的惩罚、拒绝因子分和母亲的偏爱被试因子分高 ,同正常对照组比较 ,差别均具有显著性或非常显著性意义 (P <0 0 1或P <0 0 5 ) ;③强迫症组EPQ的N因子分明显高于正常对照组 ,而E因子分则明显低于正常对照组 (P <0 0 1)。结论 强迫症患者的防御机制、父母教养方式及个性特征与正常人有着明显的不同 ,它为今后开展分析性心理治疗 ,实施心理干预措施提供了依据。  相似文献   
8.
目的:探讨应对压力的方式与腹膜透析患者的焦虑抑郁情绪的关系。方法:采用自填式结构问卷,对81例腹膜透析患者进行调查,了解患者的一般情况和患者应对措施,同时用综合性医院焦虑和抑郁情绪量表测量他们的焦虑与抑郁情绪。结果:控制年龄等因素后的等级回归分析表明:使用“面对”和“自我缓解”应对方式显著降低患者的焦虑情绪,采用“屈从”应对方式增加焦虑的发生;文化程度高的患者采用逃避应对方式则大大增加焦虑情绪的程度,女性和经济收入高者采用面对应对方式可以大大降低焦虑情绪的发生;“自我缓解”应对方式显著降低患者抑郁情绪发生的可能性。结论:不同的应对方式对腹膜透析患者的焦虑抑郁情绪存在差异。  相似文献   
9.

Objective

To document perceived adherence to treatment (taking medications and performing exercises) in patients with juvenile idiopathic arthritis (JIA) over a 1‐year period and to identify related factors.

Methods

We surveyed parents of patients with JIA at the Montreal Children's Hospital and British Columbia's Children's Hospital in Vancouver. Parents were asked to respond to a series of questionnaires every 3 months over a 12‐month period. Perceived adherence was evaluated on a 100‐mm visual analog scale (VAS) in the Parent Adherence Report Questionnaire (PARQ). Parental coping, distress, child function, disease severity and duration, perceived helpfulness of treatment, problems encountered, and sociodemographic data were also assessed.

Results

The mean age of our sample of 175 children was 10.2 years; mean age at diagnosis was 6.1 years and mean disease duration was 4.1 years. Perceived adherence to medications was consistently high, with average adherence at baseline, 3, 6, 9, and 12 months being 86.1, 91.7, 90.4, 92.0, and 88.8, respectively, on the PARQ VAS. Perceived adherence to exercise was lower but remained steady, with corresponding means of 54.5, 64.1, 61.2, 63.0, and 54.3, respectively. Using generalized estimating equation analysis, factors associated with higher perceived adherence to medications included perceived helpfulness of medications and lower disease severity; those associated with higher perceived adherence to exercise were younger age of the child, child involvement in responsibility for treatment, and higher perceived helpfulness of the treatment.

Conclusion

Belief in helpfulness of treatment is associated with higher parental perceived adherence to treatment.  相似文献   
10.
This study compared the involvement of 28 mothers and their spouses in day care centers serving infants and toddlers. The sample consisted of parents who work at varying distances from the center. Parents were interviewed ten times each to determine the amount of time they spend in the center, frequency of communication with care providers, mid-day visits to the center, playing with the child, and holding the child in the center. Factor analysis reduced these variables to one parental involvement factor. Mothers were significantly more involved than fathers in the center, after statistically controlling for distance to the workplace and occupational status.  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