Results 101 to 110 of about 8,303,866 (364)

Long Distance Effects in Mixed Electromagnetic-Gravitational Scattering [PDF]

open access: yesarXiv, 2008
Using the methods of effective field theory we examine long range effects in mixed electromagnetic-gravitational scattering. Recent calculations which have yielded differing results for such effects are examined and corrected. We consider various spin configurations of the scattered particles and find that universality with respect to spin-dependence ...
arxiv  

The decoherence of coupled spin qubits system [PDF]

open access: yesarXiv, 2008
In this report, we examine the decoherence of a spin qubits system coupled to counted spin chain with a $1/r^2$ interaction by using influence functional. We also examine the time evolution of density matrix numerically when environment is Gaussian noise.
arxiv  

The phase diagram in $T-μ-N_c$ space [PDF]

open access: yesarXiv, 2011
We examine the phase diagram of hadronic matter when the number of colors, as well as temperature and density, are varied. We show that in this regime several new phase transitions are possible, and we examine issues related to these transitions.
arxiv  

The Use of a Pocket-Sized Ultrasound Device Improves Physical Examination: Results of an In- and Outpatient Cohort Study

open access: yesPLoS ONE, 2015
Background The performance of pocket mobile ultrasound devices (PUDs) is comparable with that of standard ultrasonography, whereas the accuracy of a physical examination is often poor requiring further tests to assess diagnostic hypotheses.
A. Colli   +8 more
semanticscholar   +1 more source

Are Quantum States Subjective? [PDF]

open access: yesOrissa Journal of Physics, vol. 18, No. 2, pp. 153-162, 2011, 2012
The subjective nature of the quantum states is brought out and it is argued that the objective state assignment is subsequent to the subjective state of the observer regarding his state of knowledge about the system. The collapse postulate is examined in detail to bring out the inherent subjectivity of the quantum state.
arxiv  

The Lorentz Force and Energy-Momentum for Off-Shell Electromagnetism [PDF]

open access: yesarXiv, 2016
The kinematics of pre-Maxwell electrodynamics is examined and interpretations of these fields is found through an examination of the associated Lorentz force and the structure of the energy-momentum tensor.
arxiv  

Recent progress in microRNA research for prostate cancer

open access: yesDiscover Oncology
In recent years, prostate cancer (PCa) has seen an increasing prevalence, particularly among middle-aged and older men, positioning it as a significant health concern.
Fan Yuan, Yue Hu, Yanmei Lei, Lingna Jin
doaj   +1 more source

How to quantify an examination? Evidence from physics examinations via complex networks [PDF]

open access: yesarXiv
Given the untapped potential for continuous improvement of examinations, quantitative investigations of examinations could guide efforts to considerably improve learning efficiency and evaluation and thus greatly help both learners and educators. However, there is a general lack of quantitative methods for investigating examinations.
arxiv  

Quantum theory of atomic self-frictional field [PDF]

open access: yesarXiv
The self-frictional field of electrons remains one of the most important problems of the classical and quantum physics to date, therefore, it is to be examined theoretically and experimentally by scientists as an actual problem. This study aims to the recent important developments in the examination of the quantum self-frictional field, which is one of
arxiv  

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