Results 31 to 40 of about 35,673 (235)

A new modeling approach of Myxococcus xanthus bacteria using polarity-based reversals* [PDF]

ESAIM: Proceedings and Surveys
The aim of this paper is to model the collective behavior of Myxococcus xanthus bacteria to better understand the emerging patterns at the level of the colony.
Bloch Hélène, Calvez Vincent, Gaudeul Benoît, Gouarin Loïc, Lefebvre-Lepot Aline, Mignot Tâm, Romanos Michèle, Saulnier Jean-Baptiste   +7 more
doaj   +1 more source

A limiting model for a low Reynolds number swimmer with N passive elastic arms

Mathematics in Engineering, 2023
We consider a low Reynolds number artificial swimmer that consists of an active arm followed by $ N $ passive springs separated by spheres. This setup generalizes an approach proposed in Montino and DeSimone, Eur. Phys. J. E, vol. 38, 2015.
François Alouges , Aline Lefebvre-Lepot, Jessie Levillain   +2 more
doaj   +1 more source

A Review of Global Precipitation Data Sets: Data Sources, Estimation, and Intercomparisons [PDF]

, 2018
In this paper, we present a comprehensive review of the data sources and estimation methods of 30 currently available global precipitation data sets, including gauge-based, satellite-related, and reanalysis data sets.
Ashouri, H, Duan, Q, Hsu, KL, Miao, C, Sorooshian, S, Sun, Q   +5 more
core   +1 more source

Estimation for the Linear Model with Uncertain Covariance Matrices

, 2014
We derive a maximum a posteriori estimator for the linear observation model, where the signal and noise covariance matrices are both uncertain. The uncertainties are treated probabilistically by modeling the covariance matrices with prior inverse-Wishart
Bengtsson, Mats, Chatterjee, Saikat, Jansson, Magnus, Shariati, Nafiseh, Zachariah, Dave   +4 more
core   +1 more source

Local BDNF Delivery to the Injured Cervical Spinal Cord using an Engineered Hydrogel Enhances Diaphragmatic Respiratory Function. [PDF]

, 2018
We developed an innovative biomaterial-based approach to repair the critical neural circuitry that controls diaphragm activation by locally delivering brain-derived neurotrophic factor (BDNF) to injured cervical spinal cord.
Ghosh, Biswarup, Lepore, Angelo C., Nong, Jia, Trovillion, Victoria A., Urban, Mark W., Wang, Zhicheng, Wright, Megan C., Zhang, Zhiling, Zhong, Yinghui   +8 more
core   +2 more sources

Temporal dispersion in demyelination of POEMS syndrome and Castleman disease

Clinical Neurophysiology Practice, 2020
Objective: We detailed the electrophysiological patterns of peripheral nerve temporal dispersion across spectrum of POEMS syndrome and Castleman disease (CD).
Yue Hui Lau, Hazfadzila Mohd Unit, Lay Peng Lee, Weng Khean Loh, Fu Liong Hiew   +4 more
doaj   +1 more source

Effects of acute fatigue on the volitional and magnetically-evoked electromechanical delay of the knee flexors in males and females [PDF]

, 2007
Neuromuscular performance capabilities, including those measured by evoked responses, may be adversely affected by fatigue; however, the capability of the neuromuscular system to initiate muscle force rapidly under these circumstances is yet to be ...
AJ McComas, AYF Chan, BD Beynnon, BR Mandelbaum, C Minshull, Claire Minshull, D Chu, David Rees, DE Rassier, E Arendt, EM Wojtys, FH Fu, H Johansson, I Tsuji, I Vivodtzev, J Gray, JT Hopkins, K Sahlin, LJ Huston, M Solomonow, M Solomonow, MA Moore, MI Polkey, Michelle Walters-Edwards, MJ Ireland, ML Latash, Nigel Gleeson, NP Gleeson, NP Gleeson, NP Gleeson, P Sbriccoli, PR Cavanagh, PV Komi, RM Norman, Roger Eston, S Zhou, S Zhou, S Zhou, S Zhou, SJ Shultz, T Horita, TH Mercer, V Strojnik   +42 more
core   +1 more source

A generic framework to derive systems of conservation laws with source terms and its application to heat conduction in fluid flows: An alternative to the method of moments in kinetic theory of gases?★ [PDF]

ESAIM: Proceedings and Surveys
A generic framework to derive systems of conservation laws through the Stationary Action Principle is proposed. The equations are expressed in Eulerian coordinates while the variation of the action assumes an underlying Lagrangian description thus ...
Haegeman Ward, Kokh Samuel, Massot Marc, Orlando Giuseppe   +3 more
doaj   +1 more source

Short Paper - Quadratic minimization: from conjugate gradient to an adaptive Polyak’s momentum method with Polyak step-sizes

Open Journal of Mathematical Optimization
In this work, we propose an adaptive variation on the classical Heavy-ball method for convex quadratic minimization. The adaptivity crucially relies on so-called “Polyak step-sizes”, which consists of using the knowledge of the optimal value of the ...
Goujaud, Baptiste, Taylor, Adrien, Dieuleveut, Aymeric   +2 more
doaj   +1 more source

Asymptotics of Time Harmonic Solutions to a Thin Ferroelectric Model

Abstract and Applied Analysis, 2007
We introduce new model equations to describe the dynamics of the electric polarization in a ferroelectric material. We consider a thin cylinder representing the material with thickness ɛ and discuss the asymptotic behavior of the time harmonic solutions
Naïma Aïssa, Kamel Hamdache
doaj   +1 more source