Results 31 to 40 of about 2,341,395 (296)

New sialic acid-containing sulfolipid: “ungulic acid”

Journal of Lipid Research, 1969
Human epidermis, hair, nails, and kidney as well as bovine and horses' hooves were found to contain a lipid fraction, which on thin-layer chromatography migrated slightly ahead of the cerebroside sulfate esters and gave the color reaction specific for ...
E. Leikola, Elna Nieminen, Anna-Maija Teppo   +2 more
doaj   +1 more source

Asymmetrical braneworlds and the charged lepton mass spectrum

Physics Letters B, 2023
A braneworld mechanism for explaining the mass spectrum of the charged leptons is proposed. Based on the existence of an asymmetric warp factor for a 5+1-dim braneworld scenario, the proper fractions between the masses of the electron, muon and tauon are
Henrique Matheus Gauy, Alex E. Bernardini   +1 more
doaj   +1 more source

Particle production in time-dependent gravitational fields: the expanding mass shell [PDF]

, 2002
We compute the production of particles from the gravitational field of an expanding mass shell. Contrary to the situation of Hawking radiation and the production of cosmological perturbations during cosmological inflation, the example of an expanding ...
Abramowitz M, Birell N D, Bogoliubov N N, Deutsch D, Dominik J Schwarz, Dowker J S, Fulling S A, Greiner W, Guth A, Hawking S W, Hawking S W, Hawking S W, Mukhanov V, Mukhanov V, Novikov I D, Sabine Hossenfelder, Unruh W G, Wald R M, Walter Greiner, Wheeler J A   +19 more
core   +2 more sources

The Apoptosis Regulator 14-3-3η and Its Potential as a Therapeutic Target in Pituitary Oncocytoma

Frontiers in Endocrinology, 2019
The 14-3-3 protein family has attracted much attention in research into the pathogenesis of human tumors because of its involvement in tumorigenesis. In previous studies, we found that 14-3-3η was highly expressed in pituitary oncocytoma.
Sida Zhao, Bin Li, Chuzhong Li, Hua Gao, Yazhou Miao, Yue He, Hongyun Wang, Lei Gong, Dan Li, Yazhuo Zhang, Yazhuo Zhang, Yazhuo Zhang, Yazhuo Zhang, Yazhuo Zhang, Jie Feng   +14 more
doaj   +1 more source

Mass spectrum of pentaquarks

, 2004
We discuss the properties of the pentaquark in a collective stringlike model with a nonplanar configuration of the four quarks and the antiquark. In an application to the mass spectrum of exotic Theta baryons, we find that the ground state pentaquark has angular momentum and parity J(p)=1/2(-) and a small magnetic moment of 0.382 nuclear magnetons. The
R. BIJKER, GIANNINI, MAURO, E. SANTOPINTO   +2 more
openaire   +3 more sources

USE OF GAMMA–GAMMA COINCIDENCE TECHNIQUE IN INVESTIGATING GAMMA – RAYS ATTENUATION AT DIFFERENT ENERGIES

Tikrit Journal of Pure Science, 2023
A gamma–gamma fast –slow coincidence spectrometer composed of two 3"×3"NaI(Tl) detectors  and peripheral electronics is used in investigating some effects on the photo peak  after the penetration of gamma –rays from lead.
Mahmoud A. Elawi, LaithA. Abbas, Sarwa A. M. Salih   +2 more
doaj   +1 more source

The spectrum of massive excitations of 3d 3-state Potts model and universality [PDF]

, 2006
We consider the mass spectrum of the 3$d$ 3-state Potts model in the broken phase (a) near the second order Ising critical point in the temperature - magnetic field plane and (b) near the weakly first order transition point at zero magnetic field. In the
A. Papa, Blöte, Caselle, Caselle, Engels, Fiore, Fiore, Fiore, Fiore, Fiore, Fisher, Fortunato, Gavai, Gliozzi, Janke, Karsch, Kasteleyn, Kronfeld, Lüscher, M. Gravina, Papa, Pelissetto, Polyakov, R. Falcone, R. Fiore, Susskind, Svetitsky, Swendsen   +27 more
core   +3 more sources

Renormalized spectrum of quasiparticle in limited number of states, strongly interacting with two-mode polarization phonons at T=0 K

Condensed Matter Physics, 2021
Within unitary transformed Hamiltonian of Fröhlich type, using the Green's functions method, exact renormalized energy spectrum of quasiparticle strongly interacting with two-mode polarization phonons is obtained at T=0 K in a model of the system with ...
M.V. Tkach, Ju.O. Seti, O.M. Voitsekhivska, V.V. Hutiv   +3 more
doaj   +1 more source

Meson mass spectrum

Physics Letters B, 1969
SCOPUS: ar.j ; info:eu-repo/semantics ...
Englert, François, Brout, Hyman Robert, Truffin, Claude   +2 more
openaire   +1 more source

ppbar enhancement in B and J/Psi decay

, 2006
The near-threshold enhancement in the ppbar invariant mass spectrum from the B^+ -> K^+ ppbar decay reported recently by the BaBar Collaboration is studied within the J\"ulich NNbar model.
A. Sibirtsev, E. Byckling, J. Haidenbauer, Ulf-G. Meißner   +3 more
core   +1 more source