Results 21 to 30 of about 215,604 (218)

Energy-Efficient Amplifiers Based on Quasi-Floating Gate Techniques

open access: yesApplied Sciences, 2021
Energy efficiency is a key requirement in the design of amplifiers for modern wireless applications. The use of quasi-floating gate (QFG) transistors is a very convenient approach to achieve such energy efficiency.
Antonio Lopez-Martin   +5 more
doaj   +1 more source

Factors predisposing to humoral autoimmunity against brain-antigens in health and disease: Analysis of 49 autoantibodies in over 7000 subjects

open access: yesJournal of Affective Disorders Reports, 2023
OBJECTIVES: To compare seroprevalence/characteristics of 49 autoantibodies (AB) against brain-antigens in neuropsychiatric patients and healthy individuals and elucidate predisposing factors.
Hannelore Ehrenreich   +2 more
doaj   +1 more source

Postoperative antibiotic treatment does not lower re-revision rate in presumed aseptic hip and knee revision arthroplasties with unexpected positive intraoperative cultures – a matched cohort study [PDF]

open access: yesJournal of Bone and Joint Infection
Aims: It remains unclear if postoperative antibiotic (AB) treatment is advantageous in presumed aseptic revision arthroplasties of the hip (rTHA) and knee (rTKA) with unexpected positive intraoperative cultures (UPIC).
S. Simon   +12 more
doaj   +1 more source

Investigation of Chitosan, Quercetin and Water Interactions using Free Energy Calculations and Molecular Docking

open access: yesOrbital: The Electronic Journal of Chemistry, 2019
Predicting the preferred orientation of a ligand to a receptor and the free energy (ΔGAB) of these molecules in a solution is very useful for pharmaceutical applications.
Isabelle Aguiar, Ricardo Stefani
doaj   +1 more source

Covariant Wick rotation: action, entropy, and holonomies

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
Given an arbitrary Lorentzian metric $$g_{ab}$$ g ab and a nowhere vanishing, timelike vector field $$u^a$$ u a , one can construct a class of metrics $${\widehat{g}}_{ab}$$ g ^ ab which have Euclidean signature in a specific domain, with a transition to
Raghvendra Singh, Dawood Kothawala
doaj   +1 more source

Experimentally investigating the degradations of small-signal gain for a GaN class-AB dual-band power amplifier under high temperature and humidity conditions

open access: yesAIP Advances, 2020
In order to get the high temperature and humidity characteristics of key specifications for a power amplifier (PA), the degradation of the small-signal gain for a GaN class-AB dual-band PA under different temperature and humidity conditions is ...
Shaohua Zhou
doaj   +1 more source

Implementation of Power-Efficient Class AB Miller Amplifiers Using Resistive Local Common-Mode Feedback

open access: yesJournal of Low Power Electronics and Applications, 2021
An approach to implement single-ended power-efficient static class-AB Miller op-amps with symmetrical and significantly enhanced slew-rate and accurately controlled output quiescent current is introduced.
Anindita Paul   +6 more
doaj   +1 more source

Cut-offs for thyroid peroxidase and thyroglobulin antibodies in early pregnancy

open access: yesEuropean Thyroid Journal, 2023
Objective: Thyroid disease in women of reproductive age is mainly of autoimmune origin, and thyroid peroxidase antibodies (TPO-Ab) as well as thyroglobulin antibodies (Tg-Ab) are key markers.
Stine Linding Andersen   +13 more
doaj   +1 more source

The Occlusal Plane Inclination Analysis for Determining Skeletal Class III Malocclusion Diagnosis

open access: yesClinical, Cosmetic and Investigational Dentistry, 2020
I Gusti Aju Wahju Ardani, Ageng Wicaksono, Thalca Hamid Orthodontics Department, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, East Java, IndonesiaCorrespondence: I Gusti Aju Wahju ArdaniDepartment of Orthodontics, Faculty of Dental ...
Ardani IGAW, Wicaksono A, Hamid T
doaj  

Occurrence of Fatal and Nonfatal Adverse Outcomes after Heart Transplantation in Patients with Pretransplant Noncytotoxic HLA Antibodies

open access: yesJournal of Transplantation, 2013
HLA antibodies (HLA ab) in transplant candidates have been associated with poor outcome. However, clinical relevance of noncytotoxic antibodies after heart transplant (HT) is controversial.
Luciano Potena   +12 more
doaj   +1 more source

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