Results 41 to 50 of about 967,837 (257)

The Open String Regge Trajectory and Its Field Theory Limit [PDF]

open access: yes, 2011
We study the properties of the leading Regge trajectory in open string theory including the open string planar one-loop corrections. With SU(N) Chan-Paton factors, the sum over planar open string multi-loop diagrams describes the 't Hooft limit N\to ...
A. Erdélyi   +3 more
core   +1 more source

Relative Prime Coprime Graph of Integers Modulo Group and Its Reverse Topological Indices

open access: yesPan-American Journal of Mathematics
The relationship between edges and vertices is fundamental to graph theory, significantly influencing different graph properties and applications.
Abdurahim -   +3 more
doaj   +1 more source

Symmetric chain decomposition for cyclic quotients of Boolean algebras and relation to cyclic crystals

open access: yes, 2011
The quotient of a Boolean algebra by a cyclic group is proven to have a symmetric chain decomposition. This generalizes earlier work of Griggs, Killian and Savage on the case of prime order, giving an explicit construction for any order, prime or ...
Anne Schilling   +14 more
core   +1 more source

Pathology of Schwinger boson mean field theory for Heisenberg spin models [PDF]

open access: yes, 2002
We have re-analyze the Schwinger boson mean field theory (SBMFT) for Heisenberg spin models on the cubic lattice. We find that the second order phase transition point for magnetic ordering previously reported corresponds to a local maximum of the free ...
De Silva, Theja N.   +2 more
core   +2 more sources

Noncommutative generalizations of theorems of Cohen and Kaplansky [PDF]

open access: yes, 2011
This paper investigates situations where a property of a ring can be tested on a set of "prime right ideals." Generalizing theorems of Cohen and Kaplansky, we show that every right ideal of a ring is finitely generated (resp.
A Kertész   +38 more
core   +2 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Interplay of polarizations in a cascade EIT system in the presence of vortex coupling light in 87Rb atomic vapor medium

open access: yesNew Journal of Physics, 2023
We investigate both experimentally and theoretically the cascade electromagnetically induced transparency (EIT) in $5S_{1/2}-5P_{3/2}-5D_{5/2}$ configuration in ^87 Rb atomic vapor medium in the presence of vortex coupling Laguerre Gaussian (LG) light ...
Dixith Manchaiah   +2 more
doaj   +1 more source

A new explicit algorithmic method for generating the prime numbers in order

open access: yesEgyptian Informatics Journal, 2021
This paper presents a new method for generating all prime numbers up to a particular number m∈N,m⩾9, by using the set theory. The proposed method is explicit and works oriented in finding the prime numbers in order.
Abd Elhakeem Abd Elnaby, A.H. El-Baz
doaj   +1 more source

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

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