Investigation of Real-Time Gaseous Thermal Decomposition Products of Representative Per- and Polyfluoroalkyl Substances (PFAS).

The thermal decomposition of per- and poly fluoroalkyl substances (PFAS) is poorly understood. Here, we present an innovative, comprehensive analytical method to investigate their thermal decomposition, including perfluorocarboxylic acids (PFCAs), alcohol, sulfonates, and GenX (acid dimer), focusing on identifying their breakdown products. In this study, evolved gas analysis-mass spectrometry (EGA-MS) was used for fast real-time screening to determine the significant temperatures to be investigated with the thermal desorption-pyrolysis coupled with gas chromatography-mass spectrometry (TD-Py-GC-MS), which provided detailed information about evolved PFAS and their breakdown products.

Delivery room dextrose gel for preterm hypoglycaemia (the GEHPPI study): a randomised placebo-controlled trial.

Objective: Early hypoglycaemia at the time of neonatal intensive care unit (NICU) admission is common in very/extreme preterm infants. This study aimed to determine whether buccal dextrose gel in the delivery room (DR) would improve rates of early hypoglycaemia in this population.

Design: Randomised, blinded, placebo-controlled trial.

17α-Ethynylestradiol alters testicular epigenetic profiles and histone-to-protamine exchange in mice.

Spermatogenesis starts with the onset of puberty within the seminiferous epithelium of the testes. It is a complex process under intricate control of the endocrine system. Physiological regulations by steroid hormones in general and by estrogens in particular are due to their chemical nature prone to be disrupted by exogenous factors acting as endocrine disruptors (EDs).

Fungal Planet description sheets: 1614-1696.

Novel species of fungi described in this study include those from various countries as follows: , in leaves of , among deep leaf litter, from uredinium of on , on well-rotted twigs and litter in mixed wet sclerophyll and subtropical rainforest. , on twigs of , on bark, in savannas with shrubs and trees. , on leaves of , (incl.

Students' Knowledge about HIV and their attitudes towards people living with HIV/AIDS in the Czech Republic: analysis of the school environment and recommendations for prevention.

Objectives: The main objective of the questionnaire survey conducted by the National Institute of Public Health in Prague was to determine the level of knowledge and attitudes and to identify changes since the previous survey in 2015. A secondary objective was to gather more detailed information on how HIV/AIDS topics are taught in schools, as reported by school prevention coordinators.

Methods: The questionnaire was distributed to 48 randomly selected educational institutions and the humanitarian organization MRIYA UA z.