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Spiking Flip-Flop Memory in Resonant Tunneling Diode Neurons.
Phys Rev Lett
December 2024
University of Strathclyde, Institute of Photonics, SUPA Dept of Physics, Glasgow, United Kingdom.
We report a spiking flip-flop memory mechanism that allows controllably switching between neural-like excitable spike-firing and quiescent dynamics in a resonant tunneling diode (RTD) neuron under low-amplitude (<150 mV pulses) and high-speed (ns rate) inputs pulses. We also show that the timing of the set-reset input pulses is critical to elicit switching responses between spiking and quiescent regimes in the system. The demonstrated flip-flop spiking memory, in which spiking regimes can be controllably excited, stored, and inhibited in RTD neurons via specific low-amplitude, high-speed signals (delivered at proper time instants) offers high promise for RTD-based spiking neural networks, with the potential to be extended further to optoelectronic implementations where RTD neurons and RTD memory elements are deployed alongside for fast and efficient photonic-electronic neuromorphic computing and artificial intelligence hardware.
View Article and Find Full Text PDFNew insight on the acute CCl-induced hepatotoxicity model in rats.
Naunyn Schmiedebergs Arch Pharmacol
January 2025
Center of Studies and Research Toxic-Pharmacological, School of Pharmacy, Federal University of Goias, Leste Universitario, 240th Street, Corner of 5th Avenue, Goiania, GO, 74605-170, Brazil.
The CCl-induced hepatotoxicity model is a traditional preclinical assay applied to evaluate potential hepatoprotective compounds. However, several studies have used it with inappropriate dose and exposure time, generating both weak response or irreversible liver injury, as well as lack of representative liver and plasma biomarkers. Therefore, this study aims to determine the best dose and exposure time of CCl in Wistar rats, permitting a proper evaluation of potential hepatoprotective effect.
View Article and Find Full Text PDFThe graded heat-health risk forecast and early warning with full-season coverage across China: a predicting model development and evaluation study.
Lancet Reg Health West Pac
January 2025
National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Beijing, China.
Background: Due to global climate change, high temperature and heatwaves have become critical issues that pose a threat to human health. An effective early warning system is essential to mitigate the health risks associated with high temperature and heatwaves. However, most of the current heatwave early warning systems are not adequately developed based on the heat-health risk model, and the health impact of hot weather has not been well managed in most countries.
View Article and Find Full Text PDFLinear IgA bullous dermatosis-a fifty year experience of Warsaw Center of bullous diseases.
Front Immunol
January 2025
Department of Immunodermatology, National Medical Institute of the Ministry of the Interior and Administration, Warsaw, Masovian, Poland.
Linear IgA bullous dermatosis (LABD) is a rare subepidermal blistering disorder characterized by the presence of linear IgA deposits at the basement membrane zone (BMZ) by direct immunofluorescence (DIF). This entity was first described by Chorzelski and Jablonska from Warsaw Center of Bullous Diseases, Poland. The disease affects children and adults, whereby they differ in terms of clinical picture and course.
View Article and Find Full Text PDFApplication of Geographic Information System and Google Earth Engine for Spatial Analysis of Land Use by the Legacy Dumpsite at Raipur, Chhattisgarh: A Time Series Analysis.
Indian J Occup Environ Med
December 2024
Department of Community and Family Medicine, All India Institute of Medical Sciences Raipur, Chhattisgarh, India.
Background: Legacy dump sites pose health and environmental risks. Challenges such as difficulty in monitoring and the impact of policy changes towards remediation efforts remain enigmatic due to complexities.
Objectives: Hence this study aimed to use Geographic Information System (GIS) and Google Earth historical imagery to monitor changes in legacy dump site located at Sarona in Raipur and to assess the impact of waste management strategies being implemented currently.
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