Results 101 to 110 of about 43,628 (311)

Generalized gradient on vector bundle – application to image denoising [PDF]

, 2013
Comunicació presentada a: 4th International Conference, (SSVM 2013, celebrada del 2 al 6 de juny de 2013 a Leibnitz, Àustria.We introduce a gradient operator that generalizes the Euclidean and Riemannian gradients.
Bertalmío, Marcelo, Thomas Batard, Marcelo Bertalmío, Batard, Thomas   +3 more
core   +1 more source

Affine analogues of the Sasaki-Shchepetilov connection

Annales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2016
For two-dimensional manifold M with locally symmetric connection ∇ and with ∇-parallel volume element vol one can construct a flat connection on the vector bundle TM⊕E, where E is a trivial bundle.
Maria Robaszewska
doaj   +1 more source

Identifying transcription factors controlling the basal expression of human MRP4 highlights a substantial role for Sp1

FEBS Open Bio, EarlyView.
The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer, Angelique Kragl, Katrin Ziems, Juliane Glaubitz, Sophie Grammbauer, Susanne Hildebrandt, Mladen V. Tzvetkov, Gabriele Jedlitschky   +7 more
wiley   +1 more source

Isomorphism classes for Banach vector bundle structures of second tangents

, 2006
On a smooth Banach manifold M, the equivalence classes of curves that agree up to acceleration form the second order tangent bundle T 2M of M. This is a vector bundle in the presence of a linear connection ∇ on M and the corresponding local structure is ...
Vassiliou, E., Galanis, G.N., Dodson, C.T.J.   +2 more
core  

Vector bundles with holomorphic connection over a projective manifold with tangent bundle of nonnegative degree

, 1998
For a projective manifold whose tangent bundle is of nonnegative degree, a vector bundle on it with a holomorphic connection actually admits a compatible flat holomorphic connection, if the manifold satisfies certain conditions.
Biswas, Indranil
core   +1 more source

Derivation and characterization of retinal pigment epithelium from urine‐derived iPSCs

FEBS Open Bio, EarlyView.
Age‐related macular degeneration causes vision loss via RPE dysfunction and loss. Traditional iPSC therapies rely on invasive biopsies, limiting scalability. Here, we utilize urine‐derived stem cells as an accessible source to generate u‐iPSCs, successfully differentiated into pigmented RPE. This “Urine‐to‐Retina” platform provides a promising path for
Daniella Beiner, Hainan Zhu, Carol Christine Bosholm, Heuy‐Ching Wang, Tracy Criswell, Anthony Atala, Jian‐Xing Ma, Yuanyuan Zhang   +7 more
wiley   +1 more source

Vector bundle extensions, sheaf cohomology, and the heterotic standard model

, 2006
Stable, holomorphic vector bundles are constructed on an torus fibered, non-simply connected Calabi-Yau threefold using the method of bundle extensions.
Pantev, T., Braun, V., He, Y., Ovrut, B. A.   +3 more
core  

Classical Poisson algebra of a vector bundle : Lie-algebraic characterization

, 2020
We prove that the Lie algebra $\mathcal{S}(\mathcal{P}(E,M))$ of symbols of linear operators acting on smooth sections of a vector bundle $E\to M,$ characterizes it.
Mushengezi, Elie Zihindula, Lecomte, P. B. A   +1 more
core  

The C*-algebra of a vector bundle and fields of Cuntz algebras

, 2005
We study the Cuntz–Pimsner algebra associated with the module of continuous sections of a Hilbert bundle, and prove that it is a continuous bundle of Cuntz algebras.
Vasselli, Ezio
core   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source