Results 61 to 70 of about 99,297 (282)

Quotients of Affine Connection Control Systems [PDF]

open access: yesReports on Mathematical Physics, 2013
In this paper, we investigate the existence of a subclass of quotients of affine connection control systems, which preserve the mechanical structures. Both local and global sufficient and necessary conditions are given for the geodesically accessible affine connection control systems such that they can admit this subclass of quotients.
Xia, Qianqian, Geng, Zhiyong
openaire   +3 more sources

Screening and epitope characterization of Nidogen‐2‐specific nanobodies

open access: yesFEBS Open Bio, EarlyView.
Camel immunization and phage display were employed to generate high‐affinity VHH nanobodies against Nidogen‐2. After library construction, biopanning, ELISA screening, sequencing, and recombinant expression, selected nanobodies were purified and characterized, leading to the preliminary exploration of a nanobody‐based sandwich ELISA for specific ...
Jianchuan Wen   +9 more
wiley   +1 more source

Geodesic Reduction via Frame Bundle Geometry

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2010
A manifold with an arbitrary affine connection is considered and the geodesic spray associated with the connection is studied in the presence of a Lie group action.
Ajit Bhand
doaj   +1 more source

About differential equations of the curvature tensors of a fundamental group and affine connections

open access: yesДифференциальная геометрия многообразий фигур, 2019
The principal bundle is considered, the base of which is an n-dimen­sional smooth manifold, and the typical fiber is an r-fold Lie group. Struc­ture equations for the forms of the fundamental group and affine connec­tions are given, each of which ...
N. Ryazanov
doaj   +1 more source

The role of nonmetricity in metric-affine theories of gravity

open access: yes, 2014
The intriguing choice to treat alternative theories of gravity by means of the Palatini approach, namely elevating the affine connection to the role of independent variable, contains the seed of some interesting (usually under-explored) generalizations ...
Vitagliano, Vincenzo
core   +1 more source

Digital twins to accelerate target identification and drug development for immune‐mediated disorders

open access: yesFEBS Open Bio, EarlyView.
Digital twins integrate patient‐derived molecular and clinical data into personalised computational models that simulate disease mechanisms. They enable rapid identification and validation of therapeutic targets, prediction of drug responses, and prioritisation of candidate interventions.
Anna Niarakis, Philippe Moingeon
wiley   +1 more source

Umbilical hypersurfaces in affinely connected spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1968
In this paper we present a definition of an umbilical hypersurface in an m-dimensional space M of affine connection. Some properties of such hypersurfaces are found when M is assumed to be projectively flat. In general we follow the notation in [3] but adopt the positioning of indices used in [4]. Thus the usual summation convention holds.
openaire   +1 more source

QUASIHOMOGENEOUS ANALYTIC AFFINE CONNECTIONS ON SURFACES [PDF]

open access: yesJournal of Topology and Analysis, 2013
We classify torsion-free real-analytic affine connections on compact oriented real-analytic surfaces which are locally homogeneous on a nontrivial open set, without being locally homogeneous on all of the surface. In particular, we prove that such connections exist.
Dumitrescu, Sorin, Guillot, Adolfo
openaire   +3 more sources

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

open access: yesFEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke   +4 more
wiley   +1 more source

Scale Transformations in Metric-Affine Geometry

open access: yesUniverse, 2019
This article presents an exhaustive classification of metric-affine theories according to their scale symmetries. First it is clarified that there are three relevant definitions of a scale transformation.
Damianos Iosifidis, Tomi Koivisto
doaj   +1 more source

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