Results 71 to 80 of about 2,385,614 (399)
Analysis and applications of a heralded electron source
New Journal of PhysicsWe analytically describe the noise properties of a heralded electron source made from a standard electron gun, a weak photonic coupler, a single photon counter, and an electron energy filter.
Stewart A Koppell +5 more
doaj +1 more source
Sample Preparations for Scanning Electron Microscopy – Life Sciences
, 2016 Sample preparations are essential in scanning electron microscopy. Flawed sample prep‐ arations can undermine the quality of results and lead to false conclusions.
M. D. Murtey, P. Ramasamy
semanticscholar +1 more source
The impact of frailty syndrome on skeletal muscle histology: preventive effects of exercise
FEBS Open Bio, EarlyView.Frailty syndrome exacerbates skeletal muscle degeneration via increased ECM deposition and myofiber loss. This study, using a murine model, demonstrates that endurance exercise attenuates these histopathological alterations, preserving muscle integrity. Findings support exercise as a viable strategy to counteract frailty‐induced musculoskeletal decline
Fujue Ji +3 more
wiley +1 more source
Adaptive Partial Scanning Transmission Electron Microscopy with Reinforcement Learning [PDF]
arXiv, 2020 Compressed sensing can decrease scanning transmission electron microscopy electron dose and scan time with minimal information loss. Traditionally, sparse scans used in compressed sensing sample a static set of probing locations. However, dynamic scans that adapt to specimens are expected to be able to match or surpass the performance of static scans ...
arxiv
Electron Thermal Microscopy [PDF]
, 2007 The progress of semiconductor electronics toward ever-smaller length scales and associated higher power densities brings a need for new high-resolution thermal microscopy techniques. Traditional thermal microscopy is performed by detecting infrared radiation with far-field optics, where the resolution is limited by the wavelength of the light.
arxiv +1 more source
Residual strain in free-standing CdTe nanowires overgrown with HgTe
, 2018 We investigate the crystal properties of CdTe nanowires overgrown with HgTe. Scanning electron microscopy (SEM) and scanning transmission electron microscopy (STEM) confirm, that the growth results in a high ensemble uniformity and that the individual ...
Brüne, C. +5 more
core +1 more source
4D Scanning Ultrafast Electron Microscopy: Visualization of Materials Surface Dynamics [PDF]
, 2011 The continuous electron beam of conventional scanning electron microscopes (SEM) limits the temporal resolution required for the study of ultrafast dynamics of materials surfaces. Here, we report the development of scanning ultrafast electron microscopy (
Mohammed, Omar F. +3 more
core +1 more source
CNS Mitochondria‐Derived Vesicle in Blood: Potential Biomarkers for Brain Mitochondria Dysfunction
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Mitochondrial dysfunction is a hallmark of neurodegenerative diseases like Alzheimer's (AD) and Parkinson's (PD). Our goal was to develop practical, noninvasive methods to assess mitochondrial status through the detection of mitochondria‐derived vesicles (MDVs).
Qi Liu +12 more
wiley +1 more source
Some living eukaryotes during and after scanning electron microscopy
Applied Microscopy, 2021 Electron microscopy (EM) is an essential imaging method in biological sciences. Since biological specimens are exposed to radiation and vacuum conditions during EM observations, they die due to chemical bond breakage and desiccation.
Ki Woo Kim
doaj +1 more source
Advanced Biology, EarlyView.Hypoxia promotes the epithelial‐mesenchymal transition (EMT) of renal tubular epithelial cells via the SIRT1‐FoxO1‐FoxO3‐autophagy pathway, thereby resulting in the fibrosis of renal tubular epithelial cells. Activation of SIRT1 or induction of autophagy inhibits this process, alleviating hypoxia‐induced fibrosis.
Guangyu Wang +6 more
wiley +1 more source