Open Heart

Chronotype-aligned exercise timing in middle-aged adults at cardiometabolic risk: a randomised controlled trial

Objective To investigate whether aligning exercise timing with chronotype enhances cardiometabolic and sleep-related benefits ...
eLife

REM sleep prefrontal high-frequency oscillation chains mediate distinct cortical – hippocampal reactivation patterns compared to NREM sleep

REM (rapid eye movement) and non-REM (NREM) sleep stages contribute to systems memory consolidation in hippocampal-cortical circuits. However, the physiological mechanisms underlying REM memory ...
eLife

Distinct allosteric remodeling of HIV-1 Env dynamics on virions by gp41-directed antibodies reveals two modes of neutralization

HIV-1 envelope glycoprotein (Env), a gp120–gp41 trimer, undergoes coordinated conformational changes that drive membrane fusion and allow immune evasion by transiently concealing ...
BBC

Introduction to sound waves

A sound wave is a vibration that travels through a solid, liquid or gas such as the air or water. A loud sound has a large amplitude, a high pitched sound has a high frequency. Musicians and ...
IEEE

63572-2026 - IEC/IEEE Technical Report - Evaluation of absorbed power density related to human exposure to radio frequency fields from wireless communication devices operating ...

Scope: This document describes the computation and measurement techniques and test approaches for evaluating the local peak absorbed power density (pAPD) and peak spatial average absorbed (epithelial) ...