Results 21 to 30 of about 54,935 (211)

One shot lumen mesh generation of abdominal aortic aneurysm by hybrid neural network [PDF]

Digital Diagnostics
BACKGROUND: The majority of current algorithms for blood flow surface extraction in the context of hemomodeling of abdominal aortic aneurysms are derived through a segmentation step, rather than directly from CT scans [1].
Rostislav Yu. Epifanov, Rustam I. Mullyadzhanov, Andrey A. Karpenko   +2 more
doaj   +1 more source

Flat Connections and Non-Local Conserved Quantities in Irrational Conformal Field Theory

, 1993
Irrational conformal field theory (ICFT) includes rational conformal field theory as a small subspace, and the affine-Virasoro Ward identities describe the biconformal correlators of ICFT.
Halpern, M. B., Obers, N. A.
core   +1 more source

(Super-)integrable systems associated to 2-dimensional projective connections with one projective symmetry

, 2019
Projective connections arise from equivalence classes of affine connections under the reparametrization of geodesics. They may also be viewed as quotient systems of the classical geodesic equation.
Manno, Gianni, Vollmer, Andreas
core   +1 more source

Maximum Entropy Linear Manifold for Learning Discriminative Low-dimensional Representation

, 2015
Representation learning is currently a very hot topic in modern machine learning, mostly due to the great success of the deep learning methods.
CC Chang, G Hinton, IJ Goodfellow, J Tabor, JC Principe, TM Cover   +5 more
core   +1 more source

Decomposition of the connection in affine models of gravity

European Physical Journal C: Particles and Fields
In physics geometrical connections are the mean to create models with local symmetries (gauge connections), as well as general diffeomorphisms invariance (affine connections).
Oscar Castillo-Felisola, Bastian Grez, Aureliano Skirzewski, Jefferson Vaca-Santana   +3 more
doaj   +1 more source

Irrational Conformal Field Theory [PDF]

, 1995
This is a review of irrational conformal field theory, which includes rational conformal field theory as a small subspace. Central topics of the review include the Virasoro master equation, its solutions and the dynamics of irrational conformal field ...
Ademollo, Ademollo, Aldaya, Altschuler, Antoniadis, Antoniadis, Bais, Bais, Bakas, Banks, Banks, Banks, Bardakçi, Bardakçi, Bardakçi, Bardakçi, Bardakçi, Bardakçi, Bardakçi, Bardakçi, Bars, Bars, Bars, Belavin, Belov, Belov, Bernard, Bernard, Bouwknegt, Bowcock, Brower, Callan, Cohen, Coleman, Corrigan, de Boer, Deckmyn, Deckmyn, Dirac, Distler, Dixon, Dotsenko, Dotsenko, Douglas, Dunne, Dunne, E. Kiritsis, Eguchi, Eguchi, Etingoff, Fairlie, Fairlie, Fairlie, Fateev, Fateev, Feigin, Figueroa-O'Farrill, Figueroa-O'Farrill, Frappat, Freericks, Freericks, Frenkel, Friedan, Friedan, Fubini, Gates, Gawȩdzki, Gawȩdzki, Gell-Mann, Gepner, Gervais, Giveon, Giveon, Goddard, Goddard, Goddard, Goddard, Gorsky, Green, Green, Gross, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Halpern, Harary, Harary, Hwang, Jones, K. Clubok, Karabali, Karabali, Karabali, Karabali, Kazama, Kazama, Kazama, Kač, Kač, Kač, Kač, Kač, Kehagias, Kiritsis, Kiritsis, Kiritsis, Klein, Knizhnik, Lepowsky, M.B. Halpern, Mandelstam, Mandelstam, Mizoguchi, Mohammedi, Mohammedi, Mohammedi, Moody, Morozov, Morozov, N.A. Obers, Nappi, Neveu, Novikov, Olive, Patera, Polyakov, Popa, Pope, Ragoucy, Raiten, Ramond, Romans, Schrans, Schrans, Schrans, Segal, Seidel, Sfetsos, Sfetsos, Sfetsos, Siegel, Soloviev, Soloviev, Soloviev, Sommerfeld, Sugawara, Taylor, Tseytlin, Virasoro, Weis, Windey, Witten, Witten, Zamolodchikov, Zamolodchikov, Zamolodchikov   +178 more
core   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Einstein Gravity, Lagrange-Finsler Geometry, and Nonsymmetric Metrics

Symmetry, Integrability and Geometry: Methods and Applications, 2008
We formulate an approach to the geometry of Riemann-Cartan spaces provided with nonholonomic distributions defined by generic off-diagonal and nonsymmetric metrics inducing effective nonlinear and affine connections.
Sergiu I. Vacaru
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

A note on geodesic and almost geodesic mappings of homogeneous Riemannian manifolds [PDF]

Opuscula Mathematica, 2005
Let \(M\) be a differentiable manifold and denote by \(\nabla\) and \(\tilde{\nabla}\) two linear connections on \(M\). \(\nabla\) and \(\tilde{\nabla}\) are said to be geodesically equivalent if and only if they have the same geodesics.
Stanisław Formella
doaj