Results 61 to 70 of about 27,459 (159)

Null Fields Realizations of $W_3$ from $W(sl(4),sl(3))$ and $W(sl(3|1),sl(3))$ Algebras

open access: yes, 1995
We consider the nonlinear algebras $W(sl(4),sl(3))$ and $W(sl(3|1),sl(3))$ and find their realizations in terms of currents spanning conformal linearizing algebras. The specific structure of these algebras, allows us to construct realizations modulo null
A Sorin   +15 more
core   +1 more source

Low-energy Population III supernovae and the origin of extremely metal-poor stars [PDF]

open access: yes, 2017
Some ancient, dim, metal-poor stars may have formed in the ashes of the first supernovae (SNe). If their chemical abundances can be reconciled with the elemental yields of specific Population III (Pop III) explosions, they could reveal the properties of ...
Bromm, Volker   +5 more
core   +2 more sources

Semi-Simple Unification on T^6/Z_12 Orientifold in the Type IIB Supergravity

open access: yesPhysics Letters B, 2001
13 pages, including 1 table and 1 figure, UT ...
Watari, T., Yanagida, T.
openaire   +3 more sources

Logarithmic Operators and Dynamical Extention of The Symmetry Group in the Bosonic SU(2)_0 and SUSY SU(2)_2 WZNW Models

open access: yes, 1996
We study the operator product expansion in the bosonic $SU(2)_0$ and SUSY $SU(2)_2$ WZNW models. We find that these OPEs contain both logarithmic operators and new conserved currents, leading to an extension of the symmetry group.Comment: 16 pages ...
A. Lewis   +19 more
core   +1 more source

Evidence of Extreme Ionization Conditions and Low Metallicity in GHZ2/GLASS-Z12 from a Combined Analysis of NIRSpec and MIRI Observations

open access: yesThe Astrophysical Journal
Abstract GHZ2/GLASS-z12, one of the most distant galaxies found in JWST observations, has been recently observed with both the NIRSpec and MIRI spectrographs, establishing a spectroscopic redshift z spec = 12.34 and making it the first system at z > 10 with complete spectroscopic coverage from rest-frame UV to ...
Antonello Calabrò   +21 more
openaire   +5 more sources

Measurement of Ungulate Palatability and Browsing Pressure on Japanese Flora

open access: yesEcological Research, Volume 41, Issue 1, January 2026.
Estimation of palatability and browsing pressure are key techniques for ecosystem management. We compared four methods to estimate palatability based on browsing scar survey and proposed the reference palatability values for the Japanese flora as plant ecological trait.
Fumito Koike, Masayo Isozaki
wiley   +1 more source

Quantum Hamiltonian Reduction in Superspace Formalism

open access: yes, 1994
Recently the quantum hamiltonian reduction was done in the case of general $s\ell(2)$ embeddings into Lie algebras and superalgebras. In this paper we extend the results to the quantum hamiltonian reduction of $N=1$ affine Lie superalgebras in the ...
Bais   +23 more
core   +1 more source

Genetic Parameters of Resilience Indicators Across Growth in Beef Heifers and Their Associations With Weight, Reproduction, Calf Performance and Pre‐Weaning Survival

open access: yesJournal of Animal Breeding and Genetics, Volume 143, Issue 1, Page 79-91, January 2026.
ABSTRACT In tropical extensive beef cattle systems, heifers raised on pasture are exposed to various environmental challenges that affect their growth and reproductive performance during the first breeding. Resilience indicators derived from deviations in longitudinal traits can quantify the magnitude of these challenges and the ability of an animal to
Gustavo R. D. Rodrigues   +11 more
wiley   +1 more source

The contracts, structures and pricing mechanisms of sukuk: A critical assessment

open access: yesBorsa Istanbul Review, 2019
The existing literature focuses only on the contacts and structures of sukuk, but the pricing of sukuk is largely ignored. This paper examines the contracts, structures and pricing mechanism of sukuk.
Siti Sarah Razak   +2 more
doaj   +1 more source

Quantitative Assessment of Human Factors in Civil Aircraft Flight Test Risks Based on Fuzzy Bayesian Network and Improved HFACS Model

open access: yesInternational Journal of Aerospace Engineering, Volume 2026, Issue 1, 2026.
Human factors play an important role in civil aviation safety, which is also vital in flight tests. To significantly reduce the possibility of accidents induced by human errors during the flight test, systematic assessment of human factor risks, determination of the critical causes of accidents, and designs of targeted preventive strategies are ...
Liang Wang   +5 more
wiley   +1 more source

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