Results 41 to 50 of about 95,566 (266)
Ultrasonic attenuation of an agar, silicon dioxide, and evaporated milk gel phantom
Journal of Medical Ultrasound, 2021 Background: It has been demonstrated that agar-based gel phantoms can emulate the acoustic parameters of real tissues and are the most commonly used tissue-mimicking materials for high-intensity focused ultrasound applications.
Theocharis Drakos +7 more
doaj +1 more source
FEBS Open Bio, EarlyView.NMR metabolomics revealed concentration‐dependent metabolic perturbations in HepG2 cells exposed to H2O2. Rifampicin pretreatment enhanced metabolic competence, attenuated toxin‐induced alterations and produced metabolite profiles more consistent with human liver physiology, supporting the use of CYP450‐induced HepG2 models for improved in vitro ...
Maren Jinks +4 more
wiley +1 more source
Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley +1 more source
An Analytical-empirical Calculation of Linear Attenuation Coefficient of Megavoltage Photon Beams
Journal of Biomedical Physics and Engineering, 2017 Background: In this study, a method for linear attenuation coefficient calculation was introduced. Methods: Linear attenuation coefficient was calculated with a new method that base on the physics of interaction of photon with matter, mathematical ...
Seif F. +2 more
doaj
مجلة علوم ذي قارThe mass attenuation coefficient (μm), linear attenuation coefficients (μ), half value layer (HVL), mean free path (MFP), total atomic cross section (ACS), total electronic cross section (ECS), and effective atomic number (Zeff) are determined in this ...
Hala Wattar
doaj +1 more source
Study of γ-ray energy losses in the ionic crystalsusingMonte Carlo code [PDF]
Kirkuk Journal of Science, 2015 In this paper, measurements were carriedout of thecalculated attenuation of the ranges gamma rays energy(279,356,479,662) KeV and using radioactive sources (Hg203, Ba133, W189, Cs137).
Abdulhadi M. Ghelab +2 more
doaj +1 more source
WebLab for Measuring the Attenuation Coefficient of an Optical Fiber [PDF]
Education and Training in Optics and Photonics, 2007 The association of web technology with instrument automation and control has made possible the development of the so called Remote Laboratories or WebLabs — distributed environments that allow to access and control experiments remotely through the Internet — extending the interactivity in virtual learning environments to higher levels.
Sérgio Szpigel +4 more
openaire +2 more sources
Accurate and noninvasive prostate cancer detection using plasma‐derived extracellular vesicle RNA
FEBS Open Bio, EarlyView.Plasma extracellular vesicles were captured with WGA‐conjugated magnetic beads and profiled for RNA biomarkers. A three‐RNA panel (NM_024955, NR_047469, and NR_002564) distinguished prostate cancer from healthy controls and benign prostatic hyperplasia, supporting a simple, noninvasive approach to improve prostate cancer detection.
Hanping Wei, Haoran Wu, Wei Feng
wiley +1 more source
CSF Monoamine Metabolites and Cognitive Trajectory in Early Parkinson's Disease
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Imaging and postmortem studies indicate that abnormalities in monoaminergic neurotransmission contribute to cognitive impairment in Parkinson's disease (PD). However, it remains uncertain if cerebrospinal fluid (CSF) monoamine metabolites can serve as biomarkers of cognitive decline in early PD.
Jing‐Yu Shao +7 more
wiley +1 more source
Elevated Connectivity During Language Processing Is Associated With Cognitive Performance in SeLECTS
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Self‐Limited Epilepsy with Centrotemporal Spikes (SeLECTS) is associated with language impairments despite seizures originating in the motor cortex, suggesting aberrant cross‐network interactions. Here we tested whether functional connectivity in SeLECTS during language tasks predicts language performance.
Wendy Qi +8 more
wiley +1 more source