Results 1 to 10 of about 13,934 (307)

Dynamics of the circumstellar gas in the Herbig Ae stars BF Orionis, SV Cephei, WW Vulpeculae and XY Persei [PDF]

open access: yes, 2004
We present high resolution (lambda / Delta_lambda = 49000) echelle spectra of the intermediate mass, pre-main sequence stars BF Ori, SV Cep, WW Wul and XY Per. The spectra cover the range 3800-5900 angstroms and monitor the stars on time scales of months
A. Alberdi   +48 more
core   +3 more sources

A Prospective Study of the Impact of Transcranial Alternating Current Stimulation on EEG Correlates of Somatosensory Perception

open access: yesFrontiers in Psychology, 2018
The (8–12 Hz) neocortical alpha rhythm is associated with shifts in attention across sensory systems, and is thought to represent a sensory gating mechanism for the inhibitory control of cortical processing.
Danielle D. Sliva   +15 more
doaj   +1 more source

PACAP and migraine headache: immunomodulation of neural circuits in autonomic ganglia and brain parenchyma. [PDF]

open access: yes, 2018
The discovery that intravenous (IV) infusions of the neuropeptide PACAP-38 (pituitary adenylyl cyclase activating peptide-38) induced delayed migraine-like headaches in a large majority of migraine patients has resulted in considerable excitement in ...
Akerman, Simon   +2 more
core   +2 more sources

Effects of tACS-Like Electrical Stimulation on On-Center Retinal Ganglion Cells: Part I

open access: yesEye and Brain, 2021
Franklin R Amthor, Christianne E Strang Department of Psychology, The University of Alabama at Birmingham, Birmingham, AL, 35294-1170, USACorrespondence: Franklin R AmthorDepartment of Psychology, The University of Alabama at Birmingham, 1300 University ...
Amthor FR, Strang CE
doaj  

Effects of Transcranial Alternating Current Stimulation on Cognitive Functions in Healthy Young and Older Adults [PDF]

open access: yes, 2016
Recently, transcranial alternating current stimulation (tACS) has emerged as a tool to enhance human cognitive processes. Here, we provide a brief summary of the rationale behind tACS-induced effects on task-relevant brain oscillations and associated ...
Antonenko, Daria   +4 more
core   +3 more sources

Investigating the Effects of Transcranial Alternating Current Stimulation on Cortical Oscillations and Network Dynamics

open access: yesBrain Sciences
Transcranial electrical brain stimulation techniques like transcranial direct current (tDCS) and transcranial alternating current (tACS) have emerged as potential tools for treating neurological diseases by modulating cortical excitability.
Sandeep Kumar Agnihotri, Jiang Cai
doaj   +1 more source

Paroxysmal hemicrania

open access: yesAnnals of Indian Academy of Neurology, 2018
Paroxysmal hemicrania (PH) is a primary headache disorder belonging to the group of trigeminal autonomic cephalalgias(TACs). Patients typically experience intense lateralzsed headaches with pain primarily in the ophthalmic trigeminal distribution (V1 ...
Chinar Osman, Anish Bahra
doaj   +1 more source

Mechanisms and Controversies of tACS (Transcranial Alternating Current Stimulation)

open access: yes
The use of small amplitude electric currents delivered through the scalp, termed transcranial current stimulation (tCS, tDCS / tACS when using DC / AC currents) holds considerable promise for developing safe and effective treatments for central nervous system disorders. Initially welcomed with skepticism due to significant gaps of knowledge in terms of
Modolo, Julien   +3 more
openaire   +2 more sources

Effectiveness and brain mechanism of multi-target transcranial alternating current stimulation (tACS) on motor learning in stroke patients: study protocol for a randomized controlled trial

open access: yesTrials
Background Transcranial alternating current stimulation (tACS) has proven to be an effective treatment for improving cognition, a crucial factor in motor learning.
Ming-Hui Lai   +12 more
doaj   +1 more source

Applications of the Conceptual Density Functional Theory Indices to Organic Chemistry Reactivity [PDF]

open access: yes, 2016
Indexación: Web of ScienceTheoretical reactivity indices based on the conceptual Density Functional Theory (DFT) have become a powerful tool for the semiquantitative study of organic reactivity.
Domingo, Luis R.   +2 more
core   +2 more sources

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