Results 91 to 100 of about 12,641,387 (374)
Flavor Mixing and the Permutation Symmetry among Generations
Advances in High Energy Physics, 2020 In the standard model, the permutation symmetry among the three generations of fundamental fermions is usually regarded to be broken by the Higgs couplings.
T. K. Kuo, S. H. Chiu
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On Edge-Primitive Graphs of Order as a Product of Two Distinct Primes
Mathematics, 2023 A graph is edge-primitive if its automorphism group acts primitively on the edge set of the graph. Edge-primitive graphs form an important subclass of symmetric graphs. In this paper, edge-primitive graphs of order as a product of two distinct primes are
Renbing Xiao, Xiaojiao Zhang, Hua Zhang
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A converse to the Grace--Walsh--Szeg\H{o} theorem
, 2008 We prove that the symmetrizer of a permutation group preserves stability of a polynomial if and only if the group is orbit homogeneous. A consequence is that the hypothesis of permutation invariance in the Grace-Walsh-Szeg\H{o} Coincidence Theorem cannot
DAVID G. WAGNER +3 more
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Permutation modules for the symmetric group [PDF]
Proceedings of the American Mathematical Society, 2017 In this paper we present a general method for computing the irreducible components of the permutation modules of the symmetric groups over a field F F of characteristic 0 0 . We apply this machinery to determine the decomposition into irreducible submodules of the F [ S n
Franchi, Clara +2 more
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Social context prevents heat hormetic effects against mutagens during fish development
FEBS Letters, EarlyView.This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere +5 more
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A stepwise emergence of evolution in the RNA world
FEBS Letters, EarlyView.How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
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FEBS Letters, EarlyView.UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg +2 more
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On a question of permutation groups acting on the power set
Open MathematicsIn this work, we settle a conjecture about the number of set-orbits of permutation group acting on the power set.
Li Jinbao, Yang Yong, You Mengxi
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Permutation actions on equivariant cohomology [PDF]
, 2007 This survey paper describes two geometric representations of the permutation group using the tools of toric topology. These actions are extremely useful for computational problems in Schubert calculus.
Tymoczko, Julianna S.
core
FEBS Letters, EarlyView.B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro +2 more
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