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   140篇
  免费   7篇
管理学   12篇
民族学   7篇
人口学   14篇
理论方法论   16篇
综合类   2篇
社会学   59篇
统计学   37篇
  2023年   1篇
  2022年   2篇
  2021年   4篇
  2020年   7篇
  2019年   10篇
  2018年   13篇
  2017年   13篇
  2016年   23篇
  2015年   5篇
  2014年   10篇
  2013年   24篇
  2012年   8篇
  2011年   4篇
  2010年   7篇
  2009年   5篇
  2008年   4篇
  2007年   1篇
  2006年   2篇
  2003年   1篇
  2001年   1篇
  1999年   1篇
  1996年   1篇
排序方式: 共有147条查询结果,搜索用时 15 毫秒
111.

Objective

The aim of the study was to analyze the relationship between problematic internet use by college students and interpersonal cognitive distortions and life satisfaction.

Methods

A total of 418 students, 260 females and 158 males, studying in different departments of the Fatih Faculty of Education, Karadeniz Technical University, participated. The Online Cognition Scale, Interpersonal Cognitive Distortions Scale, Life Satisfaction Scale and Personal Information Form were used as instruments.

Results

A significant positive correlation was determined between problematic internet use and interpersonal cognitive distortions (r = .33, p < .01), and a negative one with life satisfaction (r = − .21, p < .01). Interpersonal cognitive distortions, life satisfaction and gender account for 21% of total variance (F(3413) = 37.30, p < .05). Findings revealed that males exhibit more problematic internet use than females, which subjects with a pessimistic perception of events have a higher level of problematic internet use than those with an optimistic perception and that subjects who always feel lonely exhibit greater problematic internet use than those who never or only sometimes experience feelings of loneliness.

Conclusions

Interpersonal cognitive distortions, life satisfaction and gender were significant predictors of problematic internet use. Problematic internet use exhibits significant variations according to gender, perception of events and feelings of loneliness.  相似文献   
112.
This paper explores belonging in the context of legal citizenship for second-generation Turkish immigrants in Berlin and in New York. Fluid adaptation refers to the discursive boundaries of immigrant identity articulations, the contextual and shifting adjustments immigrants make to their sense of belonging. Immigrant belonging, gauged by ‘encounters’ with bureaucracies and participatory expressions, is shaped in large part by the receiving state's legal framework and citizenship status. Belonging is complicated by racialization and exclusion, and affected by intersectionalities of immigrant experience. Limited citizenship models necessitate deployment of fluid and alternative membership models. Alternative forms of belonging underscore the power of the nation-state in delimiting belonging.  相似文献   
113.
114.
115.
116.
117.
Introduction: To determine the prevalence of low muscle mass (LMM) and the relationship between LMM with functional and nutritional status as defined using the LMM evaluation method of European Working Group on Sarcopenia in Older People (EWGSOP) criteria among male residents in a nursing home.

Methods: Male residents aged?>60 years of a nursing home located in Turkey were included in our study. Their body mass index (BMI) kg/m2, skeletal muscle mass (SMM-kg) and skeletal muscle mass index (SMMI-kg/m2) were calculated. The participants were regarded as having low SMMI if they had SMMI?<9.2?kg/m2 according to our population specific cut-off point. Functional status was evaluated with Katz activities of daily living (ADL) and Lawton Instrumental Activities of Daily Living (IADL). Nutritional assessment was performed using the Mini Nutritional Assessment (MNA). The number of drugs taken and chronic diseases were recorded.

Results: One hundred fifty-seven male residents were enrolled into the study. Their mean age was 73.1?±?6.7 years with mean ADL score of 8.9?±?2.0 and IADL score of 8.7?±?4.6. One hundred twelve (71%) residents were aged?>70 years. Thirty-five men (23%) had low SMMI in group aged?>60 years, and twenty-eight subjects (25%) in the group aged?>70 years. MNA scores were significantly lower in residents with low SMMI compared with having normal SMMI (17.1?±?3.4 versus 19.6?±?2.5, p?=?0.005). BMI was significantly lower in the residents with low SMMI compared with normal SMMI (19.6?±?2.7 versus 27.1?±?4.1, p70 years (8.1?±?2.6 versus 9.1?±?1.6, p?=?0.014). In regression analyses, the only factor associated with better functional status was the lower age (p?=?0.04) while the only factor associated with better nutrition was higher SMMI (p?=?0.01).

Conclusions: Low SMMI detected by LMM evaluation method of EWGSOP criteria is prevalent among male nursing home residents. There is association of low SMMI with nutritional status and probably with functional status within the nursing home setting using the EWGSOP criteria with Turkish normative reference cut-off value.  相似文献   
118.
The difference between a path analysis and the other multivariate analyses is that the path analysis has the ability to compute the indirect effects apart from the direct effects. The aim of this study is to investigate the distribution of indirect effects that is one of the components of path analysis via generated data. To realize this, a simulation study has been conducted with four different sample sizes, three different numbers of explanatory variables and with three different correlation matrices. A replication of 1000 has been applied for every single combination. According to the results obtained, it is found that irrespective of the sample size path coefficients tend to be stable. Moreover, path coefficients are not affected by correlation types either. Since the replication number is 1000, which is fairly large, the indirect effects from the path models have been treated as normal and their confidence intervals have been presented as well. It is also found that the path analysis should not be used with three explanatory variables. We think that this study would help scientists who are working in both natural and social sciences to determine sample size and different number of variables in the path analysis.  相似文献   
119.
In the design of constant-stress life-testing experiments, the optimal allocation in a multi-level stress test with Type-I or Type-II censoring based on the Weibull regression model has been studied in the literature. Conventional Type-I and Type-II censoring schemes restrict our ability to observe extreme failures in the experiment and these extreme failures are important in the estimation of upper quantiles and understanding of the tail behaviors of the lifetime distribution. For this reason, we propose the use of progressive extremal censoring at each stress level, whereas the conventional Type-II censoring is a special case. The proposed experimental scheme allows some extreme failures to be observed. The maximum likelihood estimators of the model parameters, the Fisher information, and asymptotic variance–covariance matrices of the maximum likelihood estimates are derived. We consider the optimal experimental planning problem by looking at four different optimality criteria. To avoid the computational burden in searching for the optimal allocation, a simple search procedure is suggested. Optimal allocation of units for two- and four-stress-level situations is determined numerically. The asymptotic Fisher information matrix and the asymptotic optimal allocation problem are also studied and the results are compared with optimal allocations with specified sample sizes. Finally, conclusions and some practical recommendations are provided.  相似文献   
120.
Objectives: To define the thoughts, emotions, experiences and perceptions of women with multiple sclerosis (MS) and to determine sexual, physical, and emotional effects of MS on patients. Methods: Twenty-one women were included into this qualitatively designed study. Results: Three baseline themes were defined as “uncertainty” arising from complaints due to numbness in extremities and loss of sense, balance or vision, “alterations in sexual life,” and “inability” as a result of deformities in marital status and gender role. Conclusion: Healthcare providers should evaluate MS patients meticulously as to sexual life and refer such patients to appropriate health centers.  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