Given some current speculations and controversies regarding the type of BiOCl/BiS-(001) heterostructure in experiments, it is of great importance to clarify these controversies and further explain the relevant experimental results. In this work, based on first-principles hybrid density functional calculations, it is verified that the BiOCl/BiS-(001) heterostructure is a direct Z-scheme photocatalyst with high photo-generated carrier separation efficiency and strong redox ability that can react with O and OH to produce photocatalytic active species of superoxide ions (˙O) and hydroxyl radicals (˙OH), respectively. This is consistent with the experimental findings and explains the excellent photocatalytic performance of the BiOCl/BiS-(001) heterostructure in experiments.
View Article and Find Full Text PDFThe prevailing theoretical frameworks indicate that depending on the growth conditions, the BiWO(001) surface can manifest in three distinct terminations-DL-O-Bi (DL: double layers), O-Bi, and O-W. In this study, we conduct a comprehensive examination of the interplay between these terminations on BiWO(001) and the 1I-terminated BiOI(001) facet, especially focusing on their impact on the photocatalytic activity of BiWO/BiOI heterostructure, applying hybrid functional calculations. The models formulated for this research are designated as BiWO(O-Bi)/BiOI(1I), BiWO(DL-O-Bi)/BiOI(1I), and BiWO(O-W)/BiOI(1I).
View Article and Find Full Text PDFObjectives: To explore the considerations and barriers to implementing shared decision-making (SDM) in infertility treatment among female infertility patients, their male spouses, and fertility clinicians.
Methods: Participants were recruited from a reproductive medicine hospital in China's Shandong Province using purposive sampling. One-on-one interviews were held with female infertility patients and their spouses.
Purpose: This study aimed to explore the health-related quality of life (HRQoL) and subjective wellbeing (SWB) of infertility patients in mainland China and to investigate the relationships between HRQoL and SWB instruments in infertility patients.
Methods: We conducted this cross-sectional study in the Hospital for Reproductive Medicine Affiliated of Shandong University between April 2019 and November 2019. Participants self-completed the five-level EQ-5D (EQ-5D-5L) questionnaire, the Assessment of Quality of Life (AQoL)-8D, and the WHO-5 wellbeing index (WHO-5).
Background: Infertility and its treatment have negative impacts on a couple's marital relationship, sexual life, psychological state and interpersonal relationships, causing personal distress. Health-related quality of life (HRQoL) has become an important component of health outcomes. HRQoL instruments developed in western culture are not always appropriate for use in China due to cultural differences.
View Article and Find Full Text PDFGeriatr Gerontol Int
October 2013
Statins are a class of medications that reduce cholesterol by inhibiting 3-hydroxy-3-methylglutaryl-coenzyme A reductase, which were thought to have a positive impact on dementia. We carried out the present meta-analysis to investigate whether statins might be associated with a reduction on risk of dementia. We carried out a meta-analysis of prospective cohort studies to examine the risk of dementia associated with statins.
View Article and Find Full Text PDFThe aim of this study was to determine the prevalence of dementia and its major subtypes in China. Forty-eight eligible studies were included in this review. The pooled prevalence for the population aged 60 years and older of Alzheimer's disease (AD) was 1.
View Article and Find Full Text PDFInt J Geriatr Psychiatry
September 2012
Background: This study aims to find the status and prevalence of depressive symptoms among the population aged 60 years and above in China.
Methods: We conducted a meta-analysis of cross-sectional studies in older population. Epidemiological studies on depressive symptoms published in Chinese journals were identified manually and online by using the Chinese Biological Medical Literature Database, Chongqing VIP database for Chinese Technical Periodicals, and Chinese National Knowledge Infrastructure database.
Int J Geriatr Psychiatry
June 2011
Background: Dementia has been a major public health problem and mild cognitive impairment is considered the pre-dementia syndrome in recent years. However, there has not yet been a systematic analysis of the prevalence of mild cognitive impairment in China.
Objectives: The aim of this study was to analyse the prevalence of mild cognitive impairment among the population aged 60 years and older in China.