Results 51 to 60 of about 19,641,486 (386)

Generators for primary closures of Galois fields

open access: yesFinite Fields and Their Applications, 2003
Let \(q\) be a prime power, \(k\) and \(e\) positive integers and \((\mathbb F_q,\mathbb F_{q^k},\mathbb F_{q^{ek}})\) a tower of finite fields of order \(q\), \(q^k\) and \(q^{ek}\), respectively. Let \({\mathcal F}\) denote the set of triples \((q,k,e)\) for which, for every \(a\in \mathbb F_{q^k}\) normal over \(\mathbb F_q\) (i.e.\ \(\{a,a^q,\dots ...
openaire   +2 more sources

Magnetic fields and chemical peculiarities of the very young intermediate-mass binary system HD 72106

open access: yes, 2008
The recently discovered magnetic Herbig Ae and Be stars may provide qualitatively new information about the formation and evolution of magnetic Ap and Bp stars. We have performed a detailed investigation of one particularly interesting binary system with
Acke   +55 more
core   +3 more sources

Finite-temperature three-point function in 2D CFT [PDF]

open access: yes, 2014
We calculate the finite temperature three-point correlation function for primary fields in a 2D conformal field theory in momentum space. This result has applications to any strongly coupled field theory with a 2D CFT dual, as well as to Kerr/CFT.Comment:
Becker, Melanie   +2 more
core   +3 more sources

On the free field realization of the osp(1|2) current algebra

open access: yes, 1996
The free field representation of the osp(1|2) current algebra is analyzed. The four point conformal blocks of the theory are studied. The structure constants for the product of an arbitrary primary operator and a primary field that transforms according ...
A.V. Ramallo   +28 more
core   +1 more source

Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors

open access: yesPopulation Ecology, EarlyView.
Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley   +1 more source

Foodborne Illness Outbreak Investigation Amongst Party Guests in Highfield Suburb, Harare City, Zimbabwe, 2020: A Retrospective Cohort Study

open access: yesJournal of Interventional Epidemiology and Public Health
Background: On November 2, 2020, 5 patients presented at Highfield Polyclinic with fever, diarrhoea, abdominal pain, vomiting and some with dehydration after attending the same party on October 31, 2020.
Linda Nyasha Kanzara   +7 more
doaj   +1 more source

Primary Beam Steering Due to Field Leakage from Superconducting SHMS Magnets

open access: yes, 2014
Simulations of the magnetic fields from the Super High Momentum Spectrometer in Hall C at Thomas Jefferson National Accelerator Facility show significant field leakage into the region of the primary beam line between the target and the beam dump. Without
Benesch, Jay   +4 more
core   +1 more source

Speciation Through the Lens of Population Dynamics: A Theoretical Primer on How Small and Large Populations Diverge

open access: yesPopulation Ecology, EarlyView.
Population size and dynamics fundamentally shape speciation by influencing genetic drift, founder events, and adaptive potential. Small populations may speciate rapidly due to stronger drift, whereas large populations harbor more genetic diversity, which can alter divergence trajectories. We highlight theoretical models that incorporate population size
Ryo Yamaguchi   +3 more
wiley   +1 more source

COVID-19 booster vaccine acceptance in North Central Nigeria: An application of the Integrated Behavioural Model

open access: yesJournal of Interventional Epidemiology and Public Health
Introduction: The limited protection durability of the primary COVID-19 vaccines and the existential threats of variants with evasive mechanisms have necessitated the need to roll out booster vaccines in many countries.
Abiodun Ebenezer Kolapo   +3 more
doaj   +1 more source

Exploring lipid diversity and minimalism to define membrane requirements for synthetic cells

open access: yesFEBS Letters, EarlyView.
Designing the lipid membrane of synthetic cells is a complex task, in which its various roles (among them solute transport, membrane protein support, and self‐replication) should all be integrated. In this review, we report the latest top‐down and bottom‐up advances and discuss compatibility and complexity issues of current engineering approaches ...
Sergiy Gan   +2 more
wiley   +1 more source

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