Results 31 to 40 of about 1,291,812 (281)

Existence Theorem for Integral and Functional Integral Equations with Discontinuous Kernels

Abstract and Applied Analysis, 2012
Existence of extremal solutions of nonlinear discontinuous integral equations of Volterra type is proved. This result is extended herein to functional Volterra integral equations (FVIEs) and to a system of discontinuous VIEs as well.
Ezzat R. Hassan
doaj   +1 more source

Landau gauge within the Gribov horizon

, 1993
We consider a model which effectively restricts the functional integral of Yang--Mills theories to the fundamental modular region. Using algebraic arguments, we prove that this theory has the same divergences as ordinary Yang Mills theory in the Landau ...
A. Blasi, A. Blasi, A. Zee, C. Becchi, C. Becchi, C. Becchi, C. Itzykson, D. Zwanziger, D. Zwanziger, D. Zwanziger, D. Zwanziger, D. Zwanziger, G. Bandelloni, G. Bandelloni, G. Costa, G. Dell'Antonio, G. Dell'Antonio, H. Neuberger, H. Neuberger, J. A. Dixon, J. A. Dixon, J. Wess, M. A. Semenov Tyan Shanskii, Martin Schaden, N. Maggiore, Nicola Maggiore, S. L. Adler, T. E. Clark, V. N. Gribov, Y. M. P. Lam, Y. M. P. Lam   +30 more
core   +3 more sources

Criterion‐Related Validity of the Neuropsychological Quick Assessment for Screening Cognitive, Motor, and Behavioral Impairments in Patients With Pediatric Brain Tumors: An Observational Pilot Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Neuropsychological complications may impair the qualitative prognosis of patients with pediatric brain tumors. However, multifaceted evaluations cannot be conducted in all patients because they are time consuming and burdensome for patients.
Ami Tabata, Keita Ueda, Tsukasa Ueno, Katsutsugu Umeda, Kentaro Ueno, Kanade Tanaka, Noyuri Nishida, Rie Yamawaki, Megumi Nukui, Yoshiki Arakawa   +9 more
wiley   +1 more source

Functional differential inclusions with integral boundary conditions

Electronic Journal of Qualitative Theory of Differential Equations, 2007
In this paper, we investigate the existence of solutions for a class of second order functional differential inclusions with integral boundary conditions.
Mouffak Benchohra, Samira Hamani, Johnny Henderson   +2 more
doaj   +1 more source

Gauge Independence in terms of the Functional Integral

, 1996
Among various approaches in proving gauge independence, models containing an explicit gauge dependence are convenient. The well-known example is the gauge parameter in the covariant gauge fixing which is of course most suitable for the perturbation ...
Kashiwa, T., Tanimura, N.
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Asymptotic Confidence Intervals for the Mean with Increased Finite-Sample Coverage Probabilities

Mathematics
We consider a Student process based on independent copies of a random variable X. If X is in the domain of attraction of the normal law (DAN), a weighted version of the Student process is known to follow a functional Central Limit Theorem (FCLT ...
Shivani Bhardwaj, Jervis Gallanosa, Yuliya V. Martsynyuk   +2 more
doaj   +1 more source

A NEW APPROACH TO THE CALCULATION OF THE THERMODYNAMIC POTENTIAL OF INHOMOGENEOUS ELECTRON GAS

Condensed Matter Physics, 2003
A new approach is proposed to calculate the thermodynamic potential, which consists in reducing the relevant non-Gaussian functional integral to its Gaussian form with a renormalized "density-density" correlator.
P.P.Kostrobij, B.M.Markovych
doaj   +1 more source

The Long Journey from Ab Initio Calculations to Density Functional Theory for Nuclear Large Amplitude Collective Motion

, 2010
At present there are two vastly different ab initio approaches to the description of the the many-body dynamics: the Density Functional Theory (DFT) and the functional integral (path integral) approaches.
, , Aarts G, Aarts G Seiler E Stamatescu I-O, Almehed D, Almehed D Walet N R, Aurel Bulgac, Barranco F, Blaizot J-P, Broomfield J M A, Bulgac A, Delaroche J P, Dreizler R M, Epelbaum E, Goriely S Chamel N Pearson J M, Leupold S Metag V Mosel U, Mitchell K A, Navratil P, Negele J W, Parisi G, Peuckert V, Pieper S C, Ring P, Wolff R Puddu G Negele J W   +23 more
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source