Results 71 to 80 of about 798,500 (344)

Biophysical analysis of angiotensin II and amyloid‐β cross‐interaction in aggregation and membrane disruption

FEBS Letters, EarlyView.
Angiotensin II (AngII), a neuropeptide, interacts with amyloid‐β (Aβ), a key player in Alzheimer's disease. This study reveals that AngII reduces Aβ aggregation and membrane disruption in vitro. Biophysical assays and molecular modeling suggest AngII binds disordered Aβ forms, potentially modulating early amyloidogenic events and contributing to ...
Mohsen Habibnia, Eric Catalina‐Hernandez, Maialen Cabrerizo‐Idiazabal, Ramon Barnadas‐Rodríguez, Mario Lopez‐Martin, Alex Peralvarez‐Marin   +5 more
wiley   +1 more source

The noncovariant gauges in 3-form theories

, 2013
We study the 3-form gauge theory in the context of generalized BRST formulation. We construct the finite field-dependent BRST (FFBRST) symmetry for such a theory.
Dwivedi, Manoj Kumar, Mandal, Bhabani Prasad, Upadhyay, Sudhaker   +2 more
core   +1 more source

Standard(-like) Model from an SO(12) Grand Unified Theory in six-dimensions with $S_2$ extra-space [PDF]

, 2009
We analyze a gauge-Higgs unification model which is based on a gauge theory defined on a six-dimensional spacetime with an $S^2$ extra-space. We impose a symmetry condition for a gauge field and non-trivial boundary conditions of the $S^2$.
Abrikosov, Adachi, Biggio, Burdman, Chapline, Chatzistavrakidis, Douzas, Fairlie, Fairlie, Farakos, Forgacs, Gogoladze, Gogoladze, Haba, Haba, Hall, Hanlon, Hasegawa, Hosotani, Hosotani, Jittoh, Joe Sato, Kapetanakis, Kapetanakis, Kawamura, Kawamura, Lim, Lim, Manton, Manton, Medina, Rajpoot, Randjbar-Daemi, Sakamoto, Sakamura, Scrucca, Takaaki Nomura   +36 more
core   +4 more sources

Discrete Gauge Theories [PDF]

, 1999
In these lecture notes, we present a self-contained discussion of planar gauge theories broken down to some finite residual gauge group H via the Higgs mechanism. The main focus is on the discrete H gauge theory describing the long distance physics of such a model. The spectrum features global H charges, magnetic vortices and dyonic combinations.
de Wild Propitius, M., Bais, F.A.
openaire   +4 more sources

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

FEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer, Matheus Felipe Santos, Maurício Mazzine Filho, Gabriela Oliveira Castro, Agustín Hernández, Manoel Aparecido Peres, Alejandro Miguel Katzin, Marcell Crispim   +7 more
wiley   +1 more source

Non-perturbatively gauge-fixed compact U(1) lattice gauge theory

Journal of High Energy Physics, 2017
An extensive study of the compact U(1) lattice gauge theory with a higher derivative gauge-fixing term and a suitable counter-term has been undertaken to determine the nature of the possible continuum limits for a wide range of the parameters, especially
Asit K. De, Mugdha Sarkar
doaj   +1 more source

Second Order Gauge Theory

, 2007
A gauge theory of second order in the derivatives of the auxiliary field is constructed following Utiyama's program. A novel field strength $G=\partial F+fAF$ arises besides the one of the first order treatment, $F=\partial A-\partial A+fAA$.
Alekseev, Alekseev, Baker, Bopp, C.A.M. de Melo, de Melo, Eidelman, Felsager, Fock, Frenkel, Frenkel, Galvão, Green, Güler, Kubo, Moniz, Ogievetski, Ostrogradsky, P.J. Pompeia, Pimentel, Podolsky, Podolsky, Podolsky, Poincaré, R.R. Cuzinatto, Ryan, Utiyama, Whitaker   +27 more
core   +1 more source

Nonabelian noncommutative gauge theory via noncommutative extra dimensions [PDF]

, 2001
The concept of covariant coordinates on noncommutative spaces leads directly to gauge theories with generalized noncommutative gauge fields of the type that arises in string theory with background B-fields.
Abouelsaood, Alekseev, Andreev, Armoni, Armoni, Arnal, Bayen, Bichl, Bichl, Bonora, Branislav Jurčo, Callan, Cannas du Silvia, Cattaneo, Chu, Chu, Connes, Connes, Connes, Cornalba, Cornalba, Cornalba, Cornalba, Das, Das, Douglas, Ikeda, Ishibashi, Julius Wess, Jurco, Jurco, Jurco, Jurco, Kontsevich, Liu, Madore, Madore, Manchon, Mehen, Morariu, Moser, Okuyama, Okuyama, Peter Schupp, Schaller, Schaller, Schaller, Schomerus, Seiberg, Seiberg, Sternheimer, Taylor   +51 more
core   +4 more sources

Mitochondrial fatty acid oxidation is stimulated by red light irradiation

FEBS Letters, EarlyView.
Light at different wavelengths has distinct effects on keratinocyte viability and metabolism. UVA light abrogates metabolic fluxes. Blue and green light have no effect on metabolic fluxes, while red light enhanced oxidative phosphorylation by promoting fatty acid oxidation. Keratinocytes are the primary constituents of sunlight‐exposed epidermis.
Manuel Alejandro Herrera, Camille C. Caldeira da Silva, Maiza Von Dentz, Mauricio S. Baptista, Alicia J. Kowaltowski   +4 more
wiley   +1 more source

Goldfishing by gauge theory

, 2006
A new solvable many-body problem of goldfish type is identified and used to revisit the connection among two different approaches to solvable dynamical systems. An isochronous variant of this model is identified and investigated.
E. Langmann, F. Calogero, Veselov A. P., Veselov A. P.   +3 more
core   +1 more source