Results 61 to 70 of about 7,300,790 (323)

Magnetic quantum and spin-wave behavior of three-layer graphene-like materials

open access: yesResults in Physics, 2023
This study examines the spin-wave and magnetic quantum behavior of three-layer graphene-like based on the Heisenberg model. The system is diagonally solved for Hamiltonian quantities using the linear spin wave theory and postponed Green's functions.
Shi-Qi Liu   +4 more
doaj   +1 more source

Fluctuation Relation beyond Linear Response Theory

open access: yes, 2005
The Fluctuation Relation (FR) is an asymptotic result on the distribution of certain observables averaged over time intervals T as T goes to infinity and it is a generalization of the fluctuation--dissipation theorem to far from equilibrium systems in a ...
Gallavotti, G.   +2 more
core   +1 more source

Thermodynamic Geometry of Yang–Mills Vacua

open access: yesUniverse, 2019
We study vacuum fluctuation properties of an ensemble of S U ( N ) gauge theory configurations, in the limit of many colors, viz. N c → ∞ , and explore the statistical nature of the topological susceptibility by analyzing its
Stefano Bellucci, Bhupendra Nath Tiwari
doaj   +1 more source

Photon Structure and Quantum Fluctuation [PDF]

open access: yes, 2000
Photon structure derives from quantum fluctuation in quantum field theory to fermion and anti-fermion, and has been an experimentally established feature of electrodynamics since the discovery of the positron.
Abreu P.   +11 more
core   +3 more sources

Fluctuation Theory of Recurrent Events [PDF]

open access: yesTransactions of the American Mathematical Society, 1949
The problems treated in this paper belong to pure analysis, but they have an intuitive background which can be roughly described as follows. We are concerned with sequences of repeated trials which may be independent or dependent; for simplicity we shall assume that each trial can result only in denumerably many events.
openaire   +2 more sources

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis   +9 more
wiley   +1 more source

Research on the Impact of International Oil Prices on the Economy of Russia [PDF]

open access: yesE3S Web of Conferences, 2020
In the process of Russian economic development, the oil industry is one of the important pillar industries. More than 50% of the total revenue of the Russian government comes from the oil and gas industry.
Wu Jiuxia
doaj   +1 more source

Rogers functions and fluctuation theory [PDF]

open access: yes, 2013
Extending earlier work by Rogers, Wiener-Hopf factorisation is studied for a class of functions closely related to Nevanlinna-Pick functions and complete Bernstein functions. The name 'Rogers functions' is proposed for this class.
Kwaśnicki, Mateusz
core  

Potential Early Risk Biomarkers for Reduced Forced Expiratory Volume in Children Post‐Hematopoietic Cell Transplantation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT We sought to identify potential early risk biomarkers for lung disease in children post‐allogeneic HCT. Patients with pulmonary function tests 3 months post‐transplant and plasma samples between days 7 and 14 post‐HCT were included. Six of 27 subjects enrolled had reduced forced expiratory volume 1 (FEV1) z scores.
Isabella S. Small   +3 more
wiley   +1 more source

Mixed Periodic-Classical Barrier Strategies for Lévy Risk Processes

open access: yesRisks, 2018
Given a spectrally-negative Lévy process and independent Poisson observation times, we consider a periodic barrier strategy that pushes the process down to a certain level whenever the observed value is above it.
José-Luis Pérez, Kazutoshi Yamazaki
doaj   +1 more source

Home - About - Disclaimer - Privacy