Results 1 to 10 of about 72,695 (293)

Quantum noise and its evasion in feedback oscillators [PDF]

open access: yesNature Communications, 2023
Feedback oscillators, consisting of an amplifier whose output is partially fed back to its input, provide stable references for standardization and synchronization.
Hudson A. Loughlin, Vivishek Sudhir
doaj   +2 more sources

Review of the Advanced LIGO Gravitational Wave Observatories Leading to Observing Run Four [PDF]

open access: yesGalaxies, 2022
Gravitational waves from binary black hole and neutron star mergers are being regularly detected. As of 2021, 90 confident gravitational wave detections have been made by the LIGO and Virgo detectors.
Craig Cahillane, Georgia Mansell
doaj   +2 more sources

Exploring Low‐Intensity Focused‐ultrasound Neuromodulation in Alzheimer's Disease [PDF]

open access: yesAlzheimers Dement
Abstract Background Alzheimer's disease (AD) presents a major public health challenge with few effective therapeutic options. Monoclonal antibodies targeting β‐amyloid show promise, but their clinical efficacy remains modest. As such, combining pharmacological and non‐pharmacological interventions to slow cognitive decline has become a key area of ...
Rezai A   +6 more
europepmc   +2 more sources

Combination of focused ultrasound blood‐brain barrier opening with Lecanemab therapy in mild Alzheimer's disease [PDF]

open access: yesAlzheimers Dement
Abstract Background Alzheimer's disease (AD) is a major neurodegenerative disorder affecting millions worldwide, with limited treatment options and significant challenges in drug delivery. Monoclonal antibody (mAb) therapies targeting β‐amyloid plaques have shown promise but are constrained by potential adverse effects, including amyloid‐related ...
Rezai A   +9 more
europepmc   +2 more sources

Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA

open access: yesLiving Reviews in Relativity, 2018
We present possible observing scenarios for the Advanced LIGO, Advanced Virgo and KAGRA gravitational-wave detectors over the next decade, with the intention of providing information to the astronomy community to facilitate planning for multi-messenger ...
K g Arun, R Birney, M W Coughlin
exaly   +3 more sources

Open data from the first and second observing runs of Advanced LIGO and Advanced Virgo

open access: yesSoftwareX, 2021
Advanced LIGO and Advanced Virgo are monitoring the sky and collecting gravitational-wave strain data with sufficient sensitivity to detect signals routinely.
Riccardo Bassiri   +2 more
exaly   +3 more sources

The role of the insula predicting memory performance in Alzheimer's disease amyloid positive and negative: a clinical cohort study [PDF]

open access: yesAlzheimers Dement
Abstract Background Known areas of Alzheimer’s pathology, including the hippocampus, entorhinal cortex and medial temporal cortex, have been well‐demonstrated as demonstrating atrophy in Alzheimer’s disease (AD). Using surface‐based morphometry measures, recent studies have suggested that the insula may play a role in memory function.
Coleman M   +15 more
europepmc   +2 more sources

Insights into the flexibility of the domain-linking loop in actinobacterial coproheme decarboxylase through structures and molecular dynamics simulations. [PDF]

open access: yesProtein Sci
Abstract Prokaryotic heme biosynthesis in Gram‐positive bacteria follows the coproporphyrin‐dependent heme biosynthesis pathway. The last step in this pathway is catalyzed by the enzyme coproheme decarboxylase, which oxidatively transforms two propionate groups into vinyl groups yielding heme b.
Patil G   +6 more
europepmc   +2 more sources

Advanced research directions in gravitational wave detectors

open access: yesФизика волновых процессов и радиотехнические системы, 2021
The general principles of gravitational waves detection are considered in this paper. Current gravitational wave detectors represent modernized Michelson interferometer – LIGO-detector.
Ivan P. Ohrymenko   +2 more
doaj   +1 more source

Squeezing in Gravitational Wave Detectors

open access: yesGalaxies, 2022
Injecting optical squeezed states of light, a technique known as squeezing, is now a tool for gravitational wave detection. Its ability to reduce quantum noise is helping to reveal more gravitational wave transients, expanding the catalog of observations
Sheila E. Dwyer   +2 more
doaj   +1 more source

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