Exploring the Association Between Housing Insecurity and Child Welfare Involvement: A Systematic Review

Child and Adolescent Social Work Journal - Housing insecurity and involvement with the child welfare system are common experiences for low-income families. To date, previous empirical studies on...     

Formal Social Participation and Utilization of Community-based Services among Urban Elderly Chinese Living Alone in Shanghai,China

This research examined formal social participation among elderly Chinese adults living alone and the association between utilization of community-based services and formal social participation, which refers to participation in employment, volunteer jobs, and social groups. Using a secondary analysis on a survey data from a simple random sample of 228 adults aged 60 and older living alone in a Shanghai neighborhood, it was found that only small percentage of older adults living alone were involved in formal social participation. Hierarchical multiple regression analysis showed that use of community-based services is significantly associated with formal social participation among elderly Chinese living alone. Thus, future policies and programs should focus on strengthening community-based services for elderly Chinese, to more effectively promote and facilitate their social participation.     

Analysis of cardiovascular risk factors associated with serum testosterone levels according to the US 2011–2012 National Health and Nutrition Examination Survey

Objective: To investigate associations between cardiovascular disease risk factors, including fasting glucose, cholesterol, high density lipoprotein cholesterol (HDL-c), LDL-c, blood pressure, body mass index (BMI), C-peptide, creatinine kinase, smoking, alcohol use, physical activity, C-reactive protein as well as homocysteine levels and cardiovascular events.

Methods: Data from 1545 men aged ≥40?years, with testosterone deficiency (TD) (<300?ng/dL) and non-TD (≥300?ng/dL) which were extracted from the National Health and Nutrition Examination Survey database 2011–2012 and analyzed.

Results: Multivariate logistic regression analysis showed positive associations between TD and BMI (≥35 vs.?p?=?.016), HDL-c (<0.91 vs. ≥0.91: OR?=?1.60, 95% CI: 1.14–2.24, p?=?.006) and diabetes (diabetes vs. non-diabetes: OR?=?1.48, 95% CI: 1.14–1.92, p?=?.004) as well as negative associations between TD and metabolic equivalent scores (≥12 vs. <12: OR?=?0.69, 95% CI: 0.52–0.91, p?=?.009) and smoking (Ever vs. never: OR?=?0.69, 95% CI: 0.51–0.94, p?=?.018). Furthermore, total serum testosterone levels were lower in patients with heart failure (p?=?.04) and angina/angina pectoris (p?=?.001) compared with subjects without these cardiac problems.

Conclusion: Low serum testosterone was associated with multiple risk factors for CHD.     

基于自适应组LASSO估计的高维门限因子模型一致选择

门限因子模型设定载荷具有阈值型区制转换结构,可以同时刻画高维时间序列的共变性和区制转换特征。针对高维门限因子模型,本文基于自适应组LASSO技术给出了一种一致模型选择过程。这一模型选择过程将因子个数设定、门限效应推断纳入统一的分析框架,不仅解决了模型选择的一致性问题,还同时实现了模型选择误差的统一控制,这对于高维门限因子模型而言是非常重要的。理论研究和随机模拟结论表明本文给出的一致模型选择过程具有良好的大样本性质和有限样本表现。最后,本文将门限因子模型应用于我国金融市场分析,实证结果进一步验证了本文理论的有效性。     

现代企业理财需要改变的几个观念

随着社会主义市场经济体制的不断完善 ,多元化经济的产生 ,致使一些理财观念不能适应现阶段的发展 ,本文论述了其中的一部分 ,分析了其不足的原因 ,提出了现代企业理财需要改变的几个观念     

大学英语教学中跨文化交际能力的培养

本文通过对 119名大学生跨文化交际的语用能力调查 ,从不同文化角度分析了中国学生的文化语用失误 ,并提出由于文化的普遍性和多样性 ,在大学外语教学中 ,我们应认识到培养跨文化交际能力的重要性     

教育经济区划的方法与步骤

本文讨论了教育经济区域的概念 ,教育经济区划的意义、理论基础、方法与步骤。在此基础上 ,将我国3 0个省市区划分成直辖市、发达、中等发达、欠发达等四类教育经济区域。并就教育经济区域与行政区划、地域分布的关系和各类地区在社会经济发展水平、教育发展水平的梯度差异展开了讨论     

“领导品德”初探

本文首次将领导者的“德”划分为政治品德、道德品德和领导品德三方面,并重点讨论了领导品德,指出:领导品德是领导者必须具有而非领导者不一定必须具有的品德,主要包括无私忘我、恢宏大度、以礼待人和同甘共苦等四个范畴。