Target-assisted self-powered photoelectrochemical sensor based on AgS/BiOCl heterojunction for ultrasensitive chlorpyrifos detection.

Chlorpyrifos (CPF), a widely used organophosphorus pesticide, presents substantial risks to both environmental and human health due to its persistent accumulation, thereby necessitating the development of effective detection methods. Self-powered photoelectrochemical (PEC) sensors, as an innovative technology, address the limitations inherent in conventional sensors, such as susceptibility to interference and inadequate signal response. Herein, we synthesized AgS/BiOCl as a photosensitive material, employing it as a light-harvesting substrate and a signal-transducing platform to develop a self-powered PEC sensor for the detection of CPF.

Disentangling Sources of Momentum Fluctuations in Xe+Xe and Pb+Pb Collisions with the ATLAS Detector.

High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the eventwise average transverse momentum [P([p_{T}])]. Disentangling the contributions from fluctuations in the nuclear overlap size (geometrical component) and other sources at a fixed size (intrinsic component) remains a challenge. This problem is addressed by measuring the mean, variance, and skewness of P([p_{T}]) in ^{208}Pb+^{208}Pb and ^{129}Xe+^{129}Xe collisions at sqrt[s_{NN}]=5.

Visible-Light-Catalyzed Fast Synthesis of 1,4-Benzoxazepine Derivatives from 2-Alkoxyarylaldehydes and -Arylglycines.

A novel photocatalytic method for the synthesis of 1,4-benzoxazepine using 2-alkoxyarylaldehyde as an oxygen source and -arylglycine as a nitrogen source has been reported. This method is mild, efficient, and fast, and the corresponding reaction can be completed within 2 h at room temperature under a nitrogen atmosphere and light-irradiation conditions. Mechanistic studies have confirmed that this scheme involves the decarboxylation cyclization of -arylglycine and provides a convenient pathway for the preparation of various 2-alkyl--phenyl-substituted 1,4-benzoxazepine.

Basic Science and Pathogenesis.

Background: Alzheimer's disease is a progressive form of dementia where cognitive capacities deteriorate due to neurodegeneration. Interestingly, Alzheimer's patients exhibit cognitive fluctuations during all stages of the disease. Though it is thought that contextual factors are critical for unlocking these hidden memories, understanding the neural basis of cognitive fluctuations has been hampered due to the lack of behavioral approaches to dissociate memories from contextual-performance.

Education Research: Has Video Killed the Interview Star?: A Survey of Current Neurology Residents on In-Person vs Virtual Residency Interviews.

Background And Objectives: The residency application process relies on interviews, which allow programs and applicants to assess one another. Historically, interviews were conducted in person at each program. With the advent of the coronavirus disease 2019 pandemic, residency interviews shifted to a virtual format.