Results 51 to 60 of about 3,034,882 (331)

On unitarity of the Coon amplitude

Journal of High Energy Physics, 2023
Abstract The Coon amplitude is a one-parameter deformation of the Veneziano amplitude. We explore the unitarity of the Coon amplitude through its partial wave expansion using tools from q-calculus. Our analysis establishes manifest positivity on the leading and sub-leading Regge trajectories in arbitrary spacetime dimensions D ...
Bhardwaj, Rishabh, De, Shounak, Spradlin, Marcus, Volovich, Anastasia   +3 more
openaire   +3 more sources

Information Models of Acupuncture Analgesia and Meridian Channels

Information, 2010
Acupuncture and meridian channels have been major components of Chinese and Eastern Asian medicine—especially for analgesia—for over 2000 years. In recent decades, electroacupuncture (EA) analgesia has been applied clinically and experimentally. However,
Chang Hua Zou, Kang Cheng
doaj   +1 more source

Impact of Arm Length and Body Mass Index on Abductor Pollicis Brevis (APB) H-Reflex among Females [PDF]

Journal of Clinical and Diagnostic Research, 2019
Introduction: Hoffmann reflex (H-reflex) is an electrically induced reflex analogous to the mechanically induced spinal stretch reflex. H-reflex is useful clinically to diagnose nerve root lesions, particularly involving S1 radiculopathy and in proximal ...
D Rekha, B Suganthi
doaj   +1 more source

Using Dual Regression to Investigate Network Shape and Amplitude in Functional Connectivity Analyses

Frontiers in Neuroscience, 2017
Independent Component Analysis (ICA) is one of the most popular techniques for the analysis of resting state FMRI data because it has several advantageous properties when compared with other techniques.
L. Nickerson, Stephen M. Smith, D. Öngür, C. Beckmann   +3 more
semanticscholar   +1 more source

Bootstrapping a Five-Loop Amplitude Using Steinmann Relations. [PDF]

Physical Review Letters, 2016
The analytic structure of scattering amplitudes is restricted by Steinmann relations, which enforce the vanishing of certain discontinuities of discontinuities.
S. Caron-Huot, L. Dixon, Andrew J. McLeod, Matt von Hippel   +3 more
semanticscholar   +1 more source

Factorization of Mellin amplitudes [PDF]

Journal of High Energy Physics, 2015
We introduce Mellin amplitudes for correlation functions of $k$ scalar operators and one operator with spin in conformal field theories (CFT) in general dimension. We show that Mellin amplitudes for scalar operators have simple poles with residues that factorize in terms of lower point Mellin amplitudes, similarly to what happens for scattering ...
Gonçalves, Vasco, Penedones, João, Trevisani, Emilio   +2 more
openaire   +3 more sources

Development of difference spectrophotometric method for the estimation of leflunomide in tablet dosage form [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2012
A new simple, accurate, precise, highly sensitive and reproducible difference spectrophotometric method for the determination of leflunomide in bulk and pharmaceutical dosage form is described. Difference spectroscopic method is based on the principle
Lakshmana Prabu S., Prakash Suriya T.N.K., Shanmugarathinam A.   +2 more
doaj   +1 more source

Vascular response to the microcirculation in the fingertip by local vibration with varied amplitude

Frontiers in Bioengineering and Biotechnology, 2023
Objectives: We investigated the effect of local vibration intensity on the vascular response to the microcirculation of the finger.Materials and methods: We performed hand-transmitted vibration experiments combined with laser Doppler flowmetry (LDF) to ...
Lizhong Mu, Lizhong Mu, Aoran Sun, Youqiang Chen, Huimin Chen, Jianda Li, Bingqi Linghu, Hang Zhou, Qingzhuo Chi, Xiaofeng Luan, Yue Pan   +10 more
doaj   +1 more source

Unitarized pion-nucleon scattering amplitude from inverse amplitude method

, 2003
In a recent work on low energy pion-nucleon scattering, instead of using chiral perturbation theory (ChPT) amplitude, we started from a pion-nucleon {\it soft-pion} result and used elastic unitarity directly as a dynamical constraint to construct first ...
Arndt, Basdevant, Bernard, Datta, Dobado, Ellis, Fettes, Ford, Gasser, Isabela P. Cavalcante, J. Sá Borges, Mojzis, Nicola, Nicola, Osypowski, Schnitzer, Sá Borges, Sá Borges, Sá Borges, Sá Borges, Truong, Truong, Weinberg   +22 more
core   +1 more source

Sparse Phase Retrieval via Truncated Amplitude Flow [PDF]

IEEE Transactions on Signal Processing, 2016
This paper develops a novel algorithm, termed SPARse Truncated Amplitude flow (SPARTA), to reconstruct a sparse signal from a small number of magnitude-only measurements.
G. Wang, Liang Zhang, G. Giannakis, M. Akçakaya, Jie Chen   +4 more
semanticscholar   +1 more source