Results 51 to 60 of about 112,515 (371)
A coupled mitral valve -- left ventricle model with fluid-structure interaction
, 2017 Understanding the interaction between the valves and walls of the heart is important in assessing and subsequently treating heart dysfunction. With advancements in cardiac imaging, nonlinear mechanics and computational techniques, it is now possible to ...
Brown, André EX +11 more
core +3 more sources
Random regular graphs and the systole of a random surface [PDF]
, 2013 We study the systole of a random surface, where by a random surface we mean a surface constructed by randomly gluing together an even number of triangles.
Bram Petri
semanticscholar +1 more source
A quantitative obstruction to collapsing surfaces
Open Mathematics, 2019 We provide a quantitative obstruction to collapsing surfaces of genus at least 2 under a lower curvature bound and an upper diameter bound.
Katz Mikhail G.
doaj +1 more source
Bolza quaternion order and asymptotics of systoles along congruence subgroups [PDF]
, 2015 We give a detailed description of the arithmetic Fuchsian group of the Bolza surface and the associated quaternion order. This description enables us to show that the corresponding principal congruence covers satisfy the bound sys(X) > 4/3 log g(X) on ...
Katz, Karin +3 more
core +1 more source
On systolic zeta functions [PDF]
European Journal of Mathematics, 2017 We define Dirichlet type series associated with homology length spectra of Riemannian, or Finsler, manifolds, or polyhedra, and investigate some of their analytical properties. As a consequence we obtain an inequality analogous to Gromov's classical intersystolic inequality, but taking the whole homology length spectrum into account rather than just ...
Babenko, Ivan, Massart, Daniel
openaire +4 more sources
Arquivos Brasileiros de Cardiologia, 2009 A insuficiência cardíaca (IC) é uma complexa síndrome cardiovascular com elevada prevalência, sendo que seu quadro clínico frequentemente é associado à dilatação do ventrículo, à diminuição da contratilidade e à reduzida fração de ejeção do ventrículo ...
Evandro Tinoco Mesquita +1 more
doaj +1 more source
NERS Jurnal Keperawatan, 2022 Loneliness affected sleep disorders among the elderly. A poor sleep pattern will be increasing blood pressure among elderly. The aimed his study was to analyzed the correlation between loneliness and sleep disorder among the elderly with hypertension. A
Insyaf Prawita Sari +4 more
doaj +1 more source
Local extremality of the Calabi-Croke sphere for the length of the shortest closed geodesic [PDF]
, 2009 Recently, F. Balacheff proved that the Calabi-Croke sphere made of two flat 1-unit-side equilateral triangles glued along their boundaries is a local extremum for the length of the shortest closed geodesic among the Riemannian spheres with conical ...
Sabourau, Stephane
core +4 more sources
Finitely presented subgroups of systolic groups are systolic [PDF]
Fundamenta Mathematicae, 2014 5 pages, 1 ...
openaire +2 more sources
Advanced Science, EarlyView.The Phospholamban (PLN) R9C mutation reduces SERCA2a binding, increasing calcium recycling and baseline contractility. However, the excess of free PLN promotes pentamer formation, limiting phosphorylation and blunting β‐adrenergic signaling. Under cardiac stress, enhanced functional demands overwhelm proteostasis in PLN R9C cells, leading to misfolded ...
Qi Yu +10 more
wiley +1 more source