Results 41 to 50 of about 9,888,963 (300)

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Single-stage PFC ac-dc converters [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2009
For single-phase applications, two stagepower factor correction (PFC) rectifiers are typicalapproach used to achieve high power factor and fastoutput regulation. In low power area this method is tocostly.
Dorin Cismasiu
doaj  

Series-shunt Distributed Compensation for Harmonic Mitigation and Dynamic Power Factor Correction

open access: yesEletrônica de Potência, 2012
This work present the development of an electronically controlled harmonic mitigation device with the property that it can inserts specific series harmonic impedances in the electric system.
Gleisson J. França   +1 more
doaj   +1 more source

Clinical efficacy of individual intraocular lens calculation in children with congenital cataract at risk of abnormal refraction

open access: yesРоссийский офтальмологический журнал, 2023
Purpose. To assess the clinical efficacy of the SRK II formula with a correction factor Rm in children with congenital cataracts who are at risk of pseudophakic myopia. Material and methods.
L. S. Khamraeva   +2 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Smart Automatic Power Factor Correction Device [PDF]

open access: yes, 2010
This document will discuss on research and theory of the chosen topic for Final Year Project, which is Smart Automatic Power Factor Correction Device (PFCD).
Lee , Jun Jia
core  

High‐frequency single‐switch PFC with frequency‐modulation controlled class‐E2 converter

open access: yesIET Power Electronics, 2021
This paper presents a single‐switch zero‐voltage switching (ZVS) power‐factor correction converter based on the class‐E2 converter at 1 MHz switching frequency. A design method for ensuring the ZVS for the entire line‐voltage period is proposed.
Wenqi Zhu   +5 more
doaj   +1 more source

Liver organoids: modelling complexity in homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

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