Publications by authors named "Qing Y Meng"

Phosphates featuring a 3D framework offer a promising alternative to aqueous sodium-ion batteries, known for their safety, cost-effectiveness, scalability, high power density, and tolerance to mishandling. Nevertheless, they often suffer from poor reversible capacity stemming from limited redox couples. Herein, N-containing NaVTi(PO) is synthesized for aqueous sodium-ion storage through multi-electron redox reactions.

View Article and Find Full Text PDF

Objective: To evaluate the clinical effect of acupuncture combined with Chinese medicine in the treatment of oligozoospermia/asthenozoospermia.

Methods: Randomized controlled trials (RCTs) of acupuncture combined with traditional Chinese medicine (TCM) in the treatment of oligozoospermia/asthenozoospermia published up to February 15, 2019 were searched from databases of CNKI, CBM, Wanfang Data, VIP, PubMed, Embase, and The Cochrane Library. Two reviewers independently performed quality assessment and data extraction of the studies, and RevMan5.

View Article and Find Full Text PDF

Air pollution health studies of fine particulate matter (diameter ≤2.5 μm, PM2.5) often use outdoor concentrations as exposure surrogates.

View Article and Find Full Text PDF

Background: The aim of this study was to investigate the risk of symptomatic pulmonary embolism (PE) in patients with combined lower extremity deep vein thrombosis (DVT) and iliac vein compression syndrome (IVCS).

Methods: Between January 2011 and February 2014, 399 patients diagnosed with combined lower extremity DVT and IVCS at the Second Affiliated Hospital of Soochow University were included in this retrospective study. The odds of symptomatic PE versus combined lower extremity DVT and IVCS were assessed using logistic regression models.

View Article and Find Full Text PDF

A critical aspect of air pollution exposure assessments is estimation of the air exchange rate (AER) for various buildings where people spend their time. The AER, which is the rate of exchange of indoor air with outdoor air, is an important determinant for entry of outdoor air pollutants and for removal of indoor-emitted air pollutants. This paper presents an overview and critical analysis of the scientific literature on empirical and physically based AER models for residential and commercial buildings; the models highlighted here are feasible for exposure assessments as extensive inputs are not required.

View Article and Find Full Text PDF

Effects of physical/environmental factors on fine particle (PM(2.5)) exposure, outdoor-to-indoor transport and air exchange rate (AER) were examined. The fraction of ambient PM(2.

View Article and Find Full Text PDF

The indoor environment is an important venue for exposure to fine particulate matter (PM2.5) of ambient (outdoor) origin. In this work, paired indoor and outdoor PM2.

View Article and Find Full Text PDF

Residential indoor and outdoor fine particle (PM(2.5)) organic (OC) and elemental carbon (EC) concentrations (48 h) were measured at 173 homes in Houston, TX, Los Angeles County, CA, and Elizabeth, NJ as part of the Relationship of Indoor, Outdoor and Personal Air (RIOPA) study. The adsorption of organic vapors on the quartz fiber sampling filter (a positive artifact) was substantial indoors and out, accounting for 36% and 37% of measured OC at the median indoor (8.

View Article and Find Full Text PDF

This study on the relationships of indoor, outdoor, and personal air (RIOPA) was undertaken to collect data for use in evaluating the contribution of outdoor sources of air toxics and particulate matter (PM) to personal exposure. The study was not designed to obtain a population-based sample, but rather to provide matched indoor, outdoor, and personal concentrations in homes that varied in their proximity to outdoor pollution sources and had a wide range of air exchange rates (AERs). This design allowed examination of relations among indoor, outdoor, and personal concentrations of air toxics and PM across a wide range of environmental conditions; the resulting data set obtained for a wide range of environmental pollutants and AERs can be used to evaluate exposure models.

View Article and Find Full Text PDF

Epidemiological studies routinely use central-site particulate matter (PM) as a surrogate for exposure to PM of ambient (outdoor) origin. Below we quantify exposure errors that arise from variations in particle infiltration to aid evaluation of the use of this surrogate, rather than actual exposure, in PM epidemiology. Measurements from 114 homes in three cities from the Relationship of Indoor, Outdoor and Personal Air (RIOPA) study were used.

View Article and Find Full Text PDF

The Relationship of Indoor, Outdoor and Personal Air (RIOPA) study was designed to investigate residential indoor, outdoor and personal exposures to several classes of air pollutants, including volatile organic compounds, carbonyls and fine particles (PM2.5). Samples were collected from summer, 1999 to spring, 2001 in Houston (TX), Los Angeles (CA) and Elizabeth (NJ).

View Article and Find Full Text PDF