Incidence of Down Syndrome by maternal age in Chinese population.

This study aims to estimate the maternal age-related risk of Down syndrome in an Asian population. We performed a retrospective data analysis including a total of 206,295 pregnant women who presented for second-trimester maternal serum screening for Down syndrome at Hubei Maternal and Child Health Hospital for the years 2008-2017. Cases were assigned to three groups: ≤26 years of age, 27-33 years of age, and ≥34 years of age.

Organic-Inorganic Hybrid Tin Halide Single Crystals with Sulfhydryl and Hydroxyl Groups: Formation, Optical Properties, and Stability.

Lead (Pb)-free halide hybrid materials have received a great deal of attention because of their potential in optoelectronic applications. However, heteroatom-based amine lead-free tin halide hybrid single crystals have not been well investigated yet. Detailed synthetic processes, growth, crystal structures, and stability of (ACHCHNH)SnBr (A = OH or SH) and (BCHCHNH)SnI (B = I or SH) single crystals were investigated.

Chiral Hybrid Copper(I) Iodide Single Crystals Enable Highly Selective Ultraviolet-Pumped Circularly Polarized Luminescence Applications.

Light-emitting diodes (LEDs) with the circularly polarized luminescence features have attracted attention to the promising applications ranging from solid-state lighting and displays to bioencoding and anticounterfeiting. The prerequisite of circularly polarized luminescence is highly emissive chiral materials. Here, we demonstrated that (R/S-MBA)CuI·2HO (MBA = α-methylbenzylaminium) and acentric GuaCuI (Gua = guanidinium) single crystals were grown on the basis of GuaCuI by the slow evaporation method.

Habitat environmental factors influence intestinal microbial diversity of the short-faced moles (Scaptochirus moschata).

The short-faced moles (Scaptochirus moschata) are unique Chinese mammal that live in burrows for life. They have complex ecological adaptation mechanisms to adapt to perennial underground life. Intestinal microbes play an important role in the ecological adaptation of wild animals.

Employment outcome for people with schizophrenia in rural v. urban China: population-based study.

Background: Although outcomes among people with schizophrenia differ by social context, this has rarely been examined across rural v. urban settings. For individuals with schizophrenia, employment is widely recognised as a critical ingredient of social integration.