Association between alcohol use and frailty among elder adults in three Chinese cities.

Background: Frailty is often described as a condition of the elderly and alcohol use is associated with frailty. The aim of this study is to examine the associations between alcohol use and frailty in three cities in elder adults.

Methods: A cross-sectional study was conducted in three cities in China from June 2017 to October 2018.

Associations of individual social capital with subjective well-being and mental health among migrants: a survey from five cities in China.

Background: We aimed to examine the associations of cognitive and structural social capital with subjective well-being (SWB) and mental health among internal migrants in five cities in China.

Methods: We conducted healthy cities surveys from June 2017 to April 2018. In total, 3038 migrants submitted surveys.

Conductivity Size Effect of Square Cross-Section Polycrystalline Nanowires.

A theoretical model for the electrical conductivity size effect of square nanowires is proposed in this manuscript, which features combining the three main carrier scattering mechanisms in polycrystalline nanowires together, namely, background scattering, external surface scattering, as well as grain boundary scattering. Comparisons to traditional models and experiment data show that this model achieves a higher correlation with the experiment data.

The "Dark Side" Effects of Social Capital on Harmful Drinking among Chinese Community Residents: A Multilevel Study.

: To determine the effects of social capital on harmful drinking (HD) among Chinese community residents using a multilevel study. : A cross-sectional study conducted from 2017⁻2018. In total, 13,610 participants were randomly interviewed from 29 districts of 3 cities in China with a multi-stage sampling procedure.

Association Between Workplace Social Capital and Absolute Presenteeism: A Multilevel Study in a Chinese Context.

Objective: The aim of this study was to investigate the association between workplace social capital (WSC) and presenteeism in a Chinese context.

Methods: We conducted a cross-sectional study in Shanghai, China, from December 2016 to March 2017. Totally, 2380 workers were randomly sampled through a two-stage sampling procedure.

Associations between psychosocial work environments and social capital: a multilevel analysis study in a Chinese context.

Background: Understanding the determinants of social capital is the prerequisite to building social capital. However there was few studies to explore factors related to workplace social capital. We aim to examine associations between psychosocial work environments and social capital in a Chinese context through a cross-sectional study.

A review of optical NDT technologies.

Optical non-destructive testing (NDT) has gained more and more attention in recent years, mainly because of its non-destructive imaging characteristics with high precision and sensitivity. This paper provides a review of the main optical NDT technologies, including fibre optics, electronic speckle, infrared thermography, endoscopic and terahertz technology. Among them, fibre optics features easy integration and embedding, electronic speckle focuses on whole-field high precision detection, infrared thermography has unique advantages for tests of combined materials, endoscopic technology provides images of the internal surface of the object directly, and terahertz technology opens a new direction of internal NDT because of its excellent penetration capability to most of non-metallic materials.