Results 41 to 50 of about 1,551,774 (276)

On the inverse scattering problem for Jacobi matrices with the spectrum on an interval, a finite system of intervals or a Cantor set of positive length

, 2001
Solving inverse scattering problem for a discrete Sturm-Liouville operator with the fast decreasing potential one gets reflection coefficients $s_\pm$ and invertible operators $I+H_{s_\pm}$, where $ H_{s_\pm}$ is the Hankel operator related to the symbol
Volberg, A., Yuditskii, P.
core   +2 more sources

Mitigation of the LHC Inverse Problem

, 2012
The LHC inverse problem refers to the difficulties in determining the parameters of an underlying theory from data (to be) taken by the LHC experiments: if they find signals of new physics, and an underlying theory is assumed, could its parameters be ...
A. Djouadi, H. A. Baer, M. Drees, Manuel Drees, Nicki Bornhauser   +4 more
core   +1 more source

The Inverse Variational Problem for Autoparallels

, 1998
We study the problem of the existence of a local quantum scalar field theory in a general affine metric space that in the semiclassical approximation would lead to the autoparallel motion of wave packets, thus providing a deviation of the spinless ...
Anderson I, Aurell E, Bilby B A, Birrell N D, Bjorken J D, Buchbinder I L, Christian Maulbetsch, Damour T, Damour T, Darboux G, Dirac P A M, Fierz M, Havas P, Hehl F W, Hehl F W, Henneaux M, Kibble T W B, Kleinert H, Kleinert H, Kleinert H, Kleinert H, Kondo K, Kröner E, Meyer H, Ohanian H C, Papapetrou A, Petrov A Z, Ponomarev V N, Santilli R M, Sarlet W, Schouten J A, Sen D K, Sergei V Shabanov, Shabanov S V, Thompson G, von Helmholtz H   +35 more
core   +3 more sources

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Inverse problem for Lagrangian systems on Lie algebroids and applications to reduction by symmetries

, 2015
The language of Lagrangian submanifolds is used to extend a geometric characterization of the inverse problem of the calculus of variations on tangent bundles to regular Lie algebroids.
Barbero-Liñán, María, de Diego, David Martín, Puiggalí, Marta Farré   +2 more
core   +2 more sources

Prodromal Lewy Body Disorder Features in REM Sleep Behavior Disorder With Biomarker‐Defined Synucleinopathy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Isolated rapid eye movement sleep behavior disorder (iRBD) is a prodromal state for Lewy body disorders and exhibits biological heterogeneity that may influence clinical expression and progression. We examined clinical features in individuals with iRBD and biomarker‐defined synucleinopathy.
Daniel Weintraub, Michele K. York, Roseanne Dobkin, Anuprita R. Nair, Ryan Kurth, David‐Erick Lafontant, Chelsea Caspell‐Garcia, Roy N. Alcalay, Ethan G. Brown, Lana M. Chahine, Christopher Coffey, Tatiana Foroud, Douglas Galasko, Karl Kieburtz, Kenneth Marek, Kalpana Merchant, Brit Mollenhauer, Kathleen L. Poston, Andrew Siderowf, Cristina Simonet, Tanya Simuni, Caroline M. Tanner, Thomas F. Tropea, Aleksandar Videnovic, The Parkinson's Progression Markers Initiative   +24 more
wiley   +1 more source

Uniqueness of semilinear elliptic inverse problem

International Journal of Mathematics and Mathematical Sciences, 2003
We consider the uniqueness of the inverse problem for a semilinear elliptic differential equation with Dirichlet condition. The necessary and sufficient condition of unique solution is obtained.
Chaochun Qu, Ping Wang
doaj   +1 more source

An inverse problem for generalized Radon transformation

St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022
The paper studies the problem of inverting the integral transformation of Radon, whose formula, under traditional restrictions, gives the integrand values at any point. For the case when such a function is discontinuous and depends not only on the points
Anikonov Dmitry, Balakina Ekaterina, Konovalova Dina   +2 more
doaj   +1 more source

Inverse problem for sl(2) lattices

, 2002
We consider the inverse problem for periodic sl(2) lattices as a canonical transformation from the separation to local variables. A new concept of a factorized separation chain is introduced allowing to solve the inverse problem explicitly. The method is
Kuznetsov, Vadim B.
core   +2 more sources

Associations of Sleep and Shift Work With Osteoarthritis Risk

Arthritis Care &Research, EarlyView.
Objective Daily rhythms may be critical for maintaining homeostasis of joint tissues. We aimed to investigate the relationships among circadian clock disruption, sleep, and osteoarthritis (OA) risk in humans. Methods In the UK Biobank, a prospective 500,000–person cohort, we evaluated associations among sleep duration, sleeplessness/insomnia, and shift
Elizabeth L. Yanik, Abigail Bridgeman, Erik D. Herzog, Vy Pham, Bradley A. Evanoff, Farshid Guilak   +5 more
wiley   +1 more source