Results 31 to 40 of about 2,297,493 (345)

New sialic acid-containing sulfolipid: “ungulic acid”

open access: yesJournal 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   +2 more
doaj   +1 more source

V_{ub} from the Hadronic Invariant Mass Spectrum in Semileptonic B Decay [PDF]

open access: yes, 1997
The hadronic invariant mass spectrum for the inclusive charmless semileptonic decay $B\to X_u e \bar\nu_e$ is studied.
Adam F. Falk   +43 more
core   +2 more sources

Axion minicluster power spectrum and mass function [PDF]

open access: yes, 2017
When Peccei-Quinn (PQ) symmetry breaking happens after inflation, the axion field takes random values in causally disconnected regions. This leads to fluctuations of order one in the axion energy density around the QCD epoch.
Enander, Jonas   +2 more
core   +3 more sources

Mass spectrum of pentaquarks

open access: yes, 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   +2 more
openaire   +3 more sources

Asymmetrical braneworlds and the charged lepton mass spectrum

open access: yesPhysics 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   +1 more
doaj   +1 more source

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

open access: yesFrontiers 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   +14 more
doaj   +1 more source

T-duality in M-theory and supermembranes [PDF]

open access: yes, 1997
The (q_1,q_2) SL(2,Z) string bound states of type IIB superstring theory admit two inequivalent (T-dual) representations in eleven dimensions in terms of a fundamental 2-brane.
Aharony   +24 more
core   +2 more sources

Mass Spectrum of a Starburst [PDF]

open access: yesSymposium - International Astronomical Union, 2004
The fragmentation of supershells and filaments driven by a superwind in a starburst region produces clumps with a mass spectrum approximated by a power law. Its spectral index is close to −2.3. We present results of computer simulations using the thin shell approximation, which are compared to 3D hydrodynamical simulations with self-gravity using the ...
Jan Palouš   +2 more
openaire   +1 more source

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

open access: yesTikrit 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   +2 more
doaj   +1 more source

Glueball Mass Spectrum from Supergravity

open access: yes, 1999
We review the calculation of the spectrum of glueball masses in non-supersymmetric Yang-Mills theory using the conjectured duality between supergravity and large N gauge theories.
Csaki, Csaba, Terning, John
core   +1 more source

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