Results 51 to 60 of about 23,348 (198)

Establishment and validation of a hair fall atlas for Chinese men based on trichoscopy

International Journal of Cosmetic Science, EarlyView.
A new hair fall atlas with 7 scales is established and validated and ready to publish as a new methodology. We observed good consistency between the dermatologists' grading (PCC >0.8), and a strong correlation shown between clinical scores and hair fall attributes based on image analysis (|p| > 0.8).
Rui Ma, Chunya Ni, Jinran Lin, Chanjuan Liu, Kai Yang, Qingmei Liu, Zheng Li, Yue Zhang, Hequn Wang, Yueqing Niu, Fengjie Su, Wenyu Wu   +11 more
wiley   +1 more source

On next-to-eikonal exponentiation

, 2010
The eikonal approximation is at the heart of many theoretical and phenomenological studies involving multiple soft gauge boson emissions in high energy physics.
Berger, Burnett, C.D. White, Catani, Del Duca, Dokshitzer, E. Laenen, Eynck, Frenkel, G. Stavenga, Gatheral, Grunberg, Grunberg, Grunberg, Grunberg, Hamberg, Kramer, L. Magnea, Laenen, Laenen, Low, Moch, Moch, Soar, Sterman, Sterman, Vermaseren, Vogt, Weinzierl, Yennie, Zijlstra   +30 more
core   +1 more source

On dips, structures and eikonalization [PDF]

The European Physical Journal C, 2000
We have investigated several models of Pomeron and Odderon contributions to high energy elastic $pp$ and $\bar p p$ scattering. The questions we address concern their role in this field, the behavior of the scattering amplitude (or of the total cross-section) at high energy, and how to fit all high energy elastic data.
Desgrolard, P., Giffon, M., Martynov, E., Predazzi, E.   +3 more
openaire   +3 more sources

Elucidating the cellular determinants of the end‐systolic pressure‐volume relationship of the heart via computational modelling

The Journal of Physiology, EarlyView.
Abstract figure legend Using a multiscale computational model of left ventricular electromechanics, we investigated how sarcomere dynamics influence the end‐systolic pressure‐volume (ESPV) relationship in ejecting beats compared to isovolumetric beats.
Francesco Regazzoni, Corrado Poggesi, Cecilia Ferrantini   +2 more
wiley   +1 more source

Worldline proof of eikonal exponentiation

Journal of High Energy Physics
In this paper, working in eikonal approximation, we present a proof for the exponentiation of the 2-body eikonal phase to all orders in the eikonal expansion, for scalar particles interacting electromagnetically or gravitationally.
Yuchen Du, Siddarth Ajith, Ravisankar Rajagopal, Diana Vaman   +3 more
doaj   +1 more source

The subleading eikonal in supergravity theories

Journal of High Energy Physics, 2018
In this paper we study the subleading contributions to eikonal scattering in (super)gravity theories with particular emphasis on the role of both elastic and inelastic scattering processes.
Arnau Koemans Collado, Paolo Di Vecchia, Rodolfo Russo, Steven Thomas   +3 more
doaj   +1 more source

Eikonal Approximation to 5D Wave Equations as Geodesic Motion in a Curved 4D Spacetime

, 2002
We first derive the relation between the eikonal approximation to the Maxwell wave equations in an inhomogeneous anisotropic medium and geodesic motion in a three dimensional Riemannian manifold using a method which identifies the symplectic structure of
A.O. Barut, C. Barcel�, C. Barcel�, D. Saad, H. Goldstein, J.D. Jackson, L. P. Horwitz, M. Kline, M.A. Trump, M.C. Land, M.C. Land, N. Shnerb, O. Oron, O. Oron, P.A.M. Dirac, R.I. Arshansky, U. Leonhardt, V.A. De Lorenci   +17 more
core   +4 more sources

Uncertainty quantification via polynomial chaos expansion of myocardial fibre orientation and cardiac activation patterns

The Journal of Physiology, EarlyView.
Abstract figure legend Graphical representation of methods. We implemented three biventricular geometric models (Zenger et al., 2020) with rule‐based myocardial fibre orientations (Bayer et al., 2018). We evaluated variability in the fibre orientation via four sets of parameter distributions to determine the role of the primary and imbrication angles ...
Lindsay C. R. Tanner, Anna Busatto, Jake A. Bergquist, Wilson W. Good, Brian Zenger, Gernot Plank, Akil Narayan, Karli Gillette, Rob S. MacLeod   +8 more
wiley   +1 more source

Magnusian: relating the eikonal phase, the on-shell action, and the scattering generator

Journal of High Energy Physics
Two fundamentally distinct types of quantities are both called “eikonal” in present amplitudes literature. The unitarity of the S-matrix ensures it can be written as the exponential of a Hermitian operator.
Jung-Wook Kim, Raj Patil, Trevor Scheopner, Jan Steinhoff   +3 more
doaj   +1 more source

CGC beyond eikonal accuracy: finite width target effects

EPJ Web of Conferences, 2016
We present a method to systematically include the corrections to the eikonal approximation that are associated with the finite width of the target. The retarded gluon propagator in background field is calculated at next-to-next-to-eikonal (NNE) accuracy ...
Altinoluk Tolga, Armesto Nestor, Beuf Guillaume, Moscoso Alexis   +3 more
doaj   +1 more source