Results 21 to 30 of about 560,693 (134)

Matrix Ernst Potentials and Orthogonal Symmetry for Heterotic String in Three Dimensions

open access: yes, 1997
A new matrix representation for low-energy limit of heterotic string theory reduced to three dimensions is considered. The pair of matrix Ernst Potentials uniquely connected with the coset matrix is derived.
ALFREDO HERRERA-AGUILAR   +4 more
core   +1 more source

Deforming tachyon kinks and tachyon potentials

open access: yes, 2006
In this paper we investigate deformation of tachyon potentials and tachyon kink solutions. We consider the deformation of a DBI type action with gauge and tachyon fields living on D1-brane and D3-brane world-volume.
A. Sen   +15 more
core   +1 more source

Inflation and quintessence with nonminimal coupling [PDF]

open access: yes, 2000
The nonminimal coupling (NMC) of the scalar field to the Ricci curvature is unavoidable in many cosmological scenarios. Inflation and quintessence models based on nonminimally coupled scalar fields are studied, with particular attention to the balance ...
A. A. Grib   +92 more
core   +4 more sources

Zeta-function approach to Casimir energy with singular potentials

open access: yes, 2005
In the framework of zeta-function approach the Casimir energy for three simple model system: single delta potential, step function potential and three delta potentials is analyzed.
Nail R. Khusnutdinov   +3 more
core   +1 more source

The Characteristics of Action Potentials in Primo Vessels and the Effects of Acetylcholine Injection to the Action Potentials [PDF]

open access: yesEvidence-Based Complementary and Alternative Medicine, 2013
In a previous study, we found that Primo vessels generate different action potentials in smooth muscles, but this study compared the pulse shape to distinguish the two tissues. Thus, a more sophisticated extracellular experiment was performed in this study using an acetylcholine injection; we then observed changes in the amplitude, FWHM (full width at ...
Jaekwan Lim   +6 more
openaire   +2 more sources

Knowledge as Potential for Action [PDF]

open access: yesEuropean Journal of Pragmatism and American Philosophy, 2017
Can we conceive cogently of all knowledge – in particular, all knowledge of truths – as being knowledge-how? This paper provides reasons for thinking not only that is this possible, but that it is conceptually advantageous and suggestive. Those reasons include adaptations of, and responses to, some classic philosophical arguments and ideas, from ...
openaire   +2 more sources

Quantum Geometry of Resurgent Perturbative/Nonperturbative Relations

open access: yes, 2017
For a wide variety of quantum potentials, including the textbook `instanton' examples of the periodic cosine and symmetric double-well potentials, the perturbative data coming from fluctuations about the vacuum saddle encodes all non-perturbative data in
Basar, Gokce   +2 more
core   +1 more source

Contralateral inhibition of click- and chirp-evoked human compound action potentials [PDF]

open access: yes, 2017
Cochlear outer hair cells (OHC) receive direct efferent feedback from the caudal auditory brainstem via the medial olivocochlear (MOC) bundle. This circuit provides the neural substrate for the MOC reflex, which inhibits cochlear amplifier gain and is ...
Cone, Barbara K   +2 more
core   +2 more sources

Field theoretical approach to non-local interactions: 1d electrons and fermionic impurities [PDF]

open access: yes, 1996
We apply a recently proposed path-integral approach to non-local bosonization to a Thirring-like system modeling non-relativistic massless particles interacting with localized fermionic impurities.
Andrei   +33 more
core   +2 more sources

Abnormal Action Potentials Associated with the Shaker Complex Locus of Drosophila [PDF]

open access: yes, 1981
Intracellular recordings of action potentials were made from the cervical giant axon in Shaker (Sh) mutants and normal Drosophila. The mutants showed abnormally long delays in repolarization.
Ferrus, Alberto   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy