Results 61 to 70 of about 4,993,365 (316)

Duality between integrable Stackel systems

, 1998
For the Stackel family of the integrable systems a non-canonical transformation of the time variable is considered. This transformation may be associated to the ambiguity of the Abel map on the corresponding hyperelliptic curve.
A V Tsiganov, Arnold V I, Bolza O, Buchstaber V M, Dubrovin B A, Faddeev L D, Khoroshkin S, Kolosoff G, Noether M, Stäckel P, Stäckel P, Stäckel P, Tsiganov A V, Tsiganov A V   +13 more
core   +1 more source

Study of blood desmosine level in patients with COPD exacerbation in relation to severity

Egyptian Journal of Chest Disease and Tuberculosis, 2014
Background: Desmosine (DES), a cross linking amino-acid unique to mature elastin is expected to increase in proportion to the recruitment and activation of the inflammatory cells induced by smoking, exposure to biomass fuel smoke etc., or during acute ...
Sayed Labib, Soha Younes, Eman Riad, Ahmed Abdallah   +3 more
doaj   +1 more source

New Onset of Fibromyalgia After Exposure to a Combat Environment: A Longitudinal Cohort Study

Arthritis Care &Research, Accepted Article.
Objective Traumatic life events are hypothesized to be triggers for the onset of fibromyalgia. Posttraumatic stress disorder (PTSD) is a common comorbidity of fibromyalgia. However, limited prospective data are available on the development of fibromyalgia after exposure to high magnitude stress.
Jay B. Higgs, Willie J. Hale, Casey L. Straud, Jim Mintz, Stacey Young‐McCaughan, Kimberly D. Gomes, Chelsea J. Sterne, Katrina M. Lawrence‐Wolff, Alan J. Bartholomew, Kevin M. Kelly, Douglas M. Maurer, Catherine Vriend, Brett T. Litz, Douglas E. Williamson, Alan L. Peterson, for the STRONG STAR Consortium   +15 more
wiley   +1 more source

Bilinear Discrete Painleve-II and its Particular Solutions

, 1994
By analogy to the continuous Painlev\'e II equation, we present particular solutions of the discrete Painlev\'e II (d-P$\rm_{II}$) equation. These solutions are of rational and special function (Airy) type. Our analysis is based on the bilinear formalism
, A Ramani, B Grammaticos, Flashka H, Fokas A S, Fokas A S, Gambier B, Grammaticos B, Gromak V A, Hietarinta J, J Hietarinta, J Satsuma, Jimbo M, K Kajiwara, Kajiwara K, Painlevé P, Ramani A, Tamizhmani K M   +17 more
core   +1 more source

Use of a Molecular Signature Response Classifier to Inform Treatment Selection Improves Clinical Disease Activity Among Patients with Rheumatoid Arthritis Initiating a Biologic or Targeted Synthetic Disease‐modifying Antirheumatic Drug

Arthritis Care &Research, Accepted Article.
Objective We assessed the effectiveness of PrismRA to improve clinical outcomes among patients with rheumatoid arthritis (RA) initiating treatment with a biologic or targeted synthetic disease‐modifying antirheumatic drug (b/tsDMARD) Methods PrismRA incorporated 19 gene expression features and 4 clinical features to assess a patient's likelihood of ...
Fenglong Xie, Timothy Beukelman, Nicholas P McCormick, Jeffrey R Curtis   +3 more
wiley   +1 more source

Toda Lattice Hierarchy and Zamolodchikov's Conjecture

, 1995
In this letter, we show that certain Fredholm determinant $D(\lambda;t)$, introduced by Zamolodchikov in his study of 2D polymers, is a continuum limit of soliton solution for the Toda lattice hierarchy with 2-periodic reduction condition.Comment: 6 ...
Bernard D., Jimbo M., Kajiwara K., Mulase M., Ueno K., Zamolodchikov Al. B.   +5 more
core   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

Symmetric Linear Backlund Transformation for Discrete BKP and DKP equation

, 1999
Proper lattices for the discrete BKP and the discrete DKP equaitons are determined. Linear B\"acklund transformation equations for the discrete BKP and the DKP equations are constructed, which possesses the lattice symmetries and generate auto-B\"acklund
1996 Quantum integrable systems, 1997, Date E, Date E, Date E, Hirota R, Kac V, Kashiwara M, Miwa T, Nobuhiko Shinzawa, Ohta Y, Saito N, Sato M, Sato M, Sato M, Shinzawa N   +15 more
core   +1 more source

Interactomic and pharmacological insights on human Sirt-1

Frontiers in Pharmacology, 2012
Sirtuin family, in humans as well as in all mammalia, is composed by seven different homologous proteins with NAD-dependent deacetylase/ADP-ribosyltransferase activity.
Ankush eSharma, Vasu K Gautam, Susan eCostantini, Antonella ePaladino, Giovanni eColonna   +4 more
doaj   +1 more source

An Adaptive Human Pilot Model With Reaction Time Delay for Enhanced Adaptive Control in Piloted Systems

International Journal of Adaptive Control and Signal Processing, EarlyView.
This work introduces an adaptive human pilot model that captures pilot time‐delay effects in adaptive control systems. The model enables the prediction of pilot–controller interactions, facilitating safer integration and improved design of adaptive controllers for piloted applications.
Abdullah Habboush, Yildiray Yildiz
wiley   +1 more source