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Zirconium(IV)-Catalysed Hydrosilylation of Organic Carbonates and Polycarbonates Household Wastes into Alcohol Derivatives.
Chemistry
January 2025
Centre CEA Paris-Saclay: Commissariat a l'Energie Atomique et aux Energies Alternatives Centre de Saclay, IRAMIS Institute, CEA - Saclay, 91190, Gif-Sur-Yvette, FRANCE.
The Schwartz's reagent Cp2Zr(H)Cl is a well known stoichiometric reagent for the reduction of unsaturated organic molecules but it has rarely been used in catalytic transformations. Herein, we describe the reduction of a variety of organic carbonates using the catalyst Cp2Zr(H)Cl in combination with Me(MeO)2SiH (DMMS) as reductant. This method was further applied to the reductive depolymerization of some polycarbonate materials and yielded silylated alcohols and diols in mild conditions.
View Article and Find Full Text PDFReimagining apnea monitoring in the neonatal ICU.
Curr Opin Pediatr
December 2024
Division of Neonatology, Montreal Children's Hospital, McGill University Health Center, Montreal, Quebec, Canada.
Purpose Of Review: This review outlines the prevalence and complications of apneas and intermittent hypoxemic events in preterm infants, examines current monitoring limitations in neonatal ICUs (NICUs), and explores emerging technologies addressing these challenges.
Recent Findings: New evidence from the Prematurity-Related Ventilatory Control (Pre-Vent) study, which analyzed cardiorespiratory data from 717 extremely preterm infants, exposes the varying frequency, duration, and severity of apneas, intermittent hypoxemia, bradycardias, and periodic breathing during hospitalization, and highlights the negative impact of intermittent hypoxemia on pulmonary outcomes at discharge. Although traditional monitoring methods cannot differentiate between apnea types and quantify their burden, recent advancements in sensor technologies and data integration hold promise for improving real-time detection and evaluation of apneas in the NICU.
Rural Environment as a Risk Factor for the Age at Onset of Machado-Joseph Disease.
Mov Disord Clin Pract
January 2025
Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Background: Machado-Joseph disease (SCA3/MJD) is a neurodegenerative condition caused by a dominant expansion of a CAG repeat (CAGexp). Most of the variability in the age at onset of symptoms (AO) remains unexplained, and environmental influences were scarcely studied.
Objective: The objective was to test if AO of SCA3/MJD carriers can be associated with markers of the rural environment, such as demographic density (DeD), proportion of rural population (PRP), and the consumption of untreated well water (CWW).
Environmental Challenges and Co-Infection Modulate Resistance and Tolerance Against Trypanosoma Cruzi and Trichinella Spiralis in Rats.
J Exp Zool A Ecol Integr Physiol
January 2025
Laboratorio de Ecología de Enfermedades, Instituto de Ciencias Veterinarias del Litoral (ICIVET LITORAL), Universidad Nacional del Litoral - CONICET, Santa Fe, Santa Fe, Argentina.
To overcome infection, hosts employ two defense strategies: resistance (which limits pathogen fitness), and tolerance (which reduces infection damage). These strategies may be influenced by environmental challenges such as food shortage, social conflict, and co-infections. Here, our objective was to assess defense strategies in rats infected with Trichinella spiralis and/or Trypanosoma cruzi under environmental challenges.
View Article and Find Full Text PDFCognitive and neural underpinnings of friend-prioritization in a perceptual matching task.
Soc Cogn Affect Neurosci
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School of Psychological and Cognitive Sciences, PKU-IDG/McGovern Institute for Brain Research, Peking University, 52 Haidian Road, Beijing 100080, China.
Previous findings of better behavioral responses to self- over other-related stimuli suggest prioritized cognitive processes of self-related information. However, it is unclear whether the processing of information related to important others (e.g.
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