Results 21 to 30 of about 279,707 (282)

Relaxation of Spin Polarized $^3$He in Mixtures of $^3$He and $^4$He Below the $^4$He Lambda Point [PDF]

open access: yes, 2008
We report the first study of the depolarization behavior of spin polarized 3He in a mixture of 3He-4He at a temperature below the 4He Lambda point in a deuterated TetraPhenyl Butadiene-doped deuterated PolyStyrene (dTPB-dPS) coated acrylic cell.
A. E. Meyerovich   +14 more
core   +2 more sources

A Framework on Polarization, Cognitive Inflexibility, and Rigid Cognitive Specialization

open access: yesFrontiers in Psychology, 2022
Polarization is pervasive in the current sociopolitical discourse. Polarization tends to increase cognitive inflexibility where people become less capable of updating their beliefs upon new information or switching between different ways of thinking ...
James Shyan-Tau Wu   +7 more
doaj   +1 more source

The Beginnings of the Academic Career of Ștefan Procopiu [PDF]

open access: yesMemoirs of the Scientific Sections of the Romanian Academy, 2022
The two authors of the study approach the first steps of the impressive scientific career of acad. Ștefan Procopiu (1890-1972), and his fundamental discoveries, namely: determination of the molecular magnetic moment, the Procopiu phenomenon (longitudinal
Monica Nănescu, Oana Florescu
doaj  

Quantum Tunneling-Induced Membrane Depolarization Can Explain the Cellular Effects Mediated by Lithium: Mathematical Modeling and Hypothesis

open access: yesMembranes, 2021
Lithium imposes several cellular effects allegedly through multiple physiological mechanisms. Membrane depolarization is a potential unifying concept of these mechanisms. Multiple inherent imperfections of classical electrophysiology limit its ability to
Lubna Khreesha   +15 more
doaj   +1 more source

Cooperative Glutamatergic and Cholinergic Mechanisms Generate Short-Term Modifications of Synaptic Effectiveness in Prepositus Hypoglossi Neurons [PDF]

open access: yes, 2005
To maintain horizontal eye position on a visual target after a saccade, extraocular motoneurons need a persistent (tonic) neural activity, called "eye-position signal," generated by prepositus hypoglossi (PH) neurons.
Delgado-Garcia, JM   +2 more
core   +1 more source

Disinhibition of hippocampal CA3 neurons induced by suppression of an adenosine A1 receptor-mediated inhibitory tonus: Pre- and postsynaptic components [PDF]

open access: yes, 1993
Intracellular recordings were performed on hippocampal CA3 neuronsin vitro to investigate the inhibitory tonus generated by endogenously produced adenosine in this brain region.
Alzheimer   +60 more
core   +1 more source

The effect of current density on the structure of nickel electrolytic foams and their catalytic properties during hydrogen production

open access: yesКонденсированные среды и межфазные границы, 2023
The effect of current density on the regularities of nickel foam deposition processes has been studied. Porous nickel foams were obtained by electrochemical deposition in the galvanostatic mode at current densities of 0.3, 0.6, 0.9, and 1.2 A cm-2.
Tina-Tini S. Trofimova   +3 more
doaj   +1 more source

An Approach to Extended Fresnel Scattering for Modeling of Depolarizing Soil-Trunk Double-Bounce Scattering

open access: yesRemote Sensing, 2016
Focusing on scattering from natural media, dihedral (double bounce) scattering is often characterized as a soil-trunk double Fresnel reflection, like for instance, in most model-based decompositions.
Thomas Jagdhuber
doaj   +1 more source

Premature Ventricular Depolarization [PDF]

open access: yesCirculation, 1961
Surface "fusion beats", beats with initial and terminal QRS abnormalities, and accompanying secondary ST-T-wave changes appear following intracavitary evidence of premature depolarization. In instances of premature activation of a portion of myocardium, the intracavitary deflection of premature ventricular depolarization may not be apparent in surface ...
openaire   +2 more sources

Kinetics deformation of current-voltage characteristics of the varistor oxide structures due to overcharging of the localized states

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2014
Prolonged exposure of zinc oxide varistors to the electrical load leads to current-voltage characteristics (CVC) deformation, which is associated with a change in the height and width of the intergranular barriers, which are the main structural element ...
A. S. Tonkoshkur, A. V. Ivanchenko
doaj   +1 more source

Home - About - Disclaimer - Privacy