Results 61 to 70 of about 98,219 (177)

The Cayley hyperbolic space and volume entropy rigidity [PDF]

open access: yesarXiv, 2022
Let $M$ be a Riemannian manifold with dimension greater or equal to $3$ which admits a complete, finite-volume Riemannian metric $g_0$ locally isometric to a rank-1 symmetric space of non-compact type. The volume entropy rigidity theorem asserts that $g_0$ minimizes a normalized volume growth entropy among all complete, finite-volume, Riemannian metric
arxiv  

Antenatal fetal surveillance [PDF]

open access: yes, 2009
O contexto atual da atividade médica exige do obstetra e ginecologista ampla compreensão dos avanços científicos e tecnológicos de sua área. O objetivo primordial da avaliação fetal antenatal é identificar fetos de risco para eventos adversos ou para o ...
MIYADAHIRA, Seizo   +2 more
core   +2 more sources

Generating fMRI volumes from T1-weighted volumes using 3D CycleGAN [PDF]

open access: yesarXiv, 2019
Registration between an fMRI volume and a T1-weighted volume is challenging, since fMRI volumes contain geometric distortions. Here we present preliminary results showing that 3D CycleGAN can be used to synthesize fMRI volumes from T1-weighted volumes, and vice versa, which can facilitate registration.
arxiv  

Volume rigidity and algebraic shifting [PDF]

open access: yesarXiv, 2022
We study the generic volume rigidity of $(d-1)$-dimensional simplicial complexes in $\mathbb R^{d-1}$, and show that the volume rigidity of a complex can be identified in terms of its exterior shifting. In addition, we establish the volume rigidity of triangulations of several $2$-dimensional surfaces and prove that, in all dimensions $>1$, volume ...
arxiv  

Insuficiência cardíaca com fração de ejeção preservada e com disfunção sistólica na comunidade Heart failure with preserved ejection fraction and systolic dysfunction in the community

open access: yesArquivos Brasileiros de Cardiologia, 2008
FUNDAMENTO: Em países desenvolvidos, a insuficiência cardíaca com fração de ejeção preservada (ICFEP) é o modelo mais prevalente que a insuficiência cardíaca com disfunção sistólica (ICDS) na comunidade.
Marco Aurélio Esposito Moutinho   +9 more
doaj   +1 more source

Bioimpedância transtorácica comparada à ressonância magnética na avaliação do débito cardíaco Transthoracic impedance compared to magnetic resonance imaging in the assessment of cardiac output

open access: yesArquivos Brasileiros de Cardiologia, 2012
FUNDAMENTO: A ressonância magnética cardíaca é considerada o método padrão-ouro para o cálculo de volumes cardíacos. A bioimpedância transtorácica cardíaca avalia o débito cardíaco.
Humberto Villacorta Junior   +5 more
doaj   +3 more sources

Memoria de las prácticas profesionales de traducción: Principles of Anatomy and Physiology [PDF]

open access: yes, 2018
Treball Final de Màster Universitari en Traducció Medicosanitària. Codi: SBA031.
Barrios García, Lourdes
core  

Minimal volume of complete uniform visibility manifolds with finite volume [PDF]

open access: yesarXiv, 2012
We show that complete uniform visibility manifolds of finite volume with sectional curvature $-1 \leq K \leq 0$ have positive simplicial volumes. This implies that their minimal volumes are non-zero.
arxiv  

Stable integral simplicial volume of 3-manifolds [PDF]

open access: yes, 2019
We show that non-elliptic prime 3-manifolds satisfy integral approximation for the simplicial volume, i.e., that their simplicial volume equals the stable integral simplicial volume. The proof makes use of integral foliated simplicial volume and tools from ergodic theory.
arxiv   +1 more source

Volume form as volume of infinitesimal simplices [PDF]

open access: yesarXiv, 2000
In the context of Synthetic Differential Geometry, we describe the square volume of a ``second-infinitesimal simplex'', in terms of square-distance between its vertices. The square-volume function thus described is symmetric in the vertices. The square-volume gives rise to a characterization of the volume form in the top dimension.
arxiv  

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