Results 61 to 70 of about 173,658,569 (246)

Changes in white matter predict efficacy of repetitive transcranial magnetic stimulation in Parkinson's disease

open access: yesNeuroImage
Background: The efficacy of continuous theta burst stimulation (cTBS) in Parkinson's disease (PD) exhibits considerable variability. Emerging evidence links changes in brain white matter (WM) activity to the onset and progression of PD, offering novel ...
Jinying Han   +17 more
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Searchlight classification based on Amplitude of Low Frequency Fluctuation and functional connectivity in individuals with obsessive-compulsive symptoms

open access: yes, 2019
Introduction: Investigating obsessive-compulsive symptoms in subclinical populations provides a useful framework for understanding the early development of obsessive-compulsive spectrum disorders.
Sørensen, TA   +25 more
core   +1 more source

The amplitude of low-frequency fluctuation characteristics in depressed adolescents with suicide attempts: a resting-state fMRI study

open access: yesFrontiers in Psychiatry, 2023
BackgroundThe amplitude of low-frequency fluctuation (ALFF) is a measure of spontaneous brain activity derived from resting-state functional magnetic resonance imaging (rs-fMRI). Previous research has suggested that abnormal ALFF values may be associated
Changchun Hu   +7 more
doaj   +1 more source

Soft motions encoded by the fold and mediated by conserved hinge sites drive V‐ATPase allosteric machinery and autoinhibition

open access: yesFEBS Letters, EarlyView.
Vacuolar H+‐ATPase (V‐ATPase) is a multisubunit rotary proton pump that acidifies intracellular compartments. Using elastic network models, we identified conserved hinge residues that govern its large‐scale functional motions. We show that intrinsically encoded ‘soft modes’ drive critical functional transitions, including rotary catalysis and ...
Diksha Parwana   +3 more
wiley   +1 more source

Low Frequency Fluctuation in FET's [PDF]

open access: yes
The Low frequency fluctuation in the drain current of a field effect transistor is experimentally analysed. It is shown to be induced by the ambient temperature fluctuation.
ハシグチ, スミヒサ   +6 more
core   +1 more source

Large Amplitude, Low Frequency Plasma Fluctuations at Comet Giacobini-Zinner

open access: yesGeophysical Research Letters, 1986
Very large amplitude fluctuations in electron density, temperature, and flow velocity were a prominent aspect of the solar wind interaction with comet Giacobini‐Zinner during the ICE encounter in September 1985. These fluctuations were detected at a distance of at least 9 × 105 km and grew in amplitude as ICE approached the comet, peaking in amplitude ...
J. T. Gosling   +4 more
openaire   +1 more source

CORRELATION BETWEEN AMPLITUDE AND FREQUENCY FLUCTUATIONS OF SPONTANEOUS OTOACOUSTIC EMISSIONS

open access: yes, 1994
The normalized cross-correlation function between the amplitude and frequency fluctuations of 11 spontaneous otoacoustic emissions was measured. A significant correlation was found in seven subjects. The correlation coefficient ranged from -0.37 to +0.65
Carrick L. Talmadge   +11 more
core   +2 more sources

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

open access: yesFEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen   +5 more
wiley   +1 more source

Dynamic alterations of amplitude of low-frequency fluctuations in patients with chronic neck pain

open access: yesPsychoradiology, 2021
Abstract Background The pathogenesis of neck pain in the brain, which is the fourth most common cause of disability, remains unclear. Furthermore, little is known about the characteristics of dynamic local functional brain activity in cervical pain ...
Zhang, Jiabao   +8 more
openaire   +2 more sources

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