Impact of Sensitizer Yb on Structural and Optical Properties of AESiO (AE = Ba, Ca, Sr) Orthosilicates.

In the present work, BaSrSiO: Yb and CaSrSiO: Yb (Yb = 0 mol %, 1 mol %, 2 mol % and 3 mol %) nanophosphors were synthesized using the co-precipitation method, and their comparative structural and optical properties were studied to demonstrate the effect of Yb ion on the characteristic properties of the prepared nanophosphors. The powder X-ray diffraction (PXRD) patterns of BaSrSiO:Yb and CaSrSiO:Yb suggest the formation of a single-phase orthorhombic structure with space groups Pbnm and Pna21, respectively. The Raman shifts in BaSrSiO (BSS) and CaSrSiO (CSS) indicate out-of-phase bending of Sr-O and symmetric stretching of Si-O.

Environmental and dietary factors associated with urinary OH-PAHs in mid-pregnancy in a large multi-site study.

Background: PAH exposure is associated with adverse health outcomes, but exposure sources in pregnancy are not well-understood.

Objectives: We examined associations between urinary OH-PAHs during pregnancy and environmental tobacco smoke (ETS) and short-term ambient air pollution exposure. Participants included 1603 pregnant non-smokers in three cohorts from 7 sites across the USA.

Correction: Gibbs process distinguishes survival and reveals contact-inhibition genes in Glioblastoma multiforme.

[This corrects the article DOI: 10.1371/journal.pone.

In utero exposure to per - and polyfluoroalkyl substances (PFAS) associates with altered human infant T helper cell development.

Background: Environmental exposures to chemical toxicants during gestation and infancy can dysregulate multiple developmental processes, causing lifelong effects. There is compelling evidence of PFAS-associated immunotoxicity in adults and children. However, the effect of developmental PFAS exposure on infant T-cell immunity is unreported, and, if present, could be implicated in immune-related health outcomes.