Results 21 to 30 of about 1,718 (258)

Investigating Array Programming for Spatial Operations with Vector Geometries [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Vector geometries are traditionally represented as entities of sequences of coordinate structures. With advancements in hardware and software for data analytics, a preference for columnar data layouts arose.
B. Teuscher   +3 more
doaj   +1 more source

Homogeneous and anisotropic cosmologies with affine EoS: a dynamical system perspective

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We study a class of homogeneous and anisotropic geometries with affine equation of state (EoS) for different physically plausible scenarios of the universe evolution using dynamical system technique.
Ashutosh Singh
doaj   +1 more source

ON A CLASS OF EDGE-TRANSITIVE DISTANCE-REGULAR ANTIPODAL COVERS OF COMPLETE GRAPHS

open access: yesUral Mathematical Journal, 2021
The paper is devoted to the problem of classification of edge-transitive distance-regular antipodal covers of complete graphs. This extends the classification of those covers that are arc-transitive, which has been settled except for some tricky cases ...
Ludmila Yu. Tsiovkina
doaj   +1 more source

Integrating geometries of ReLU feedforward neural networks

open access: yesFrontiers in Big Data, 2023
This paper investigates the integration of multiple geometries present within a ReLU-based neural network. A ReLU neural network determines a piecewise affine linear continuous map, M, from an input space ℝm to an output space ℝn.
Yajing Liu   +3 more
doaj   +1 more source

Automated identification of anatomical anomalies in the hyoid region of cleft lip and palate patients

open access: yesTranslational Research in Anatomy, 2021
Introduction: Systematic identification of anatomical variants and anomalies in large patient populations remains problematic. The purpose of this study is to determine whether anatomical anomalies of the hyoid region can be quantitatively characterized,
Ahmed Z. Abdelkarim   +7 more
doaj   +1 more source

Spacetimes with vector distortion: Inflation from generalised Weyl geometry

open access: yesPhysics Letters B, 2016
Spacetime with general linear vector distortion is introduced. Thus, the torsion and the nonmetricity of the affine connection are assumed to be proportional to a vector field (and not its derivatives).
Jose Beltrán Jiménez, Tomi S. Koivisto
doaj   +1 more source

Super Quasi-Einstein Warped Products Manifolds with Respect to Affine Connections

open access: yesAxioms
In this paper, we investigate warped products on super quasi-Einstein manifolds under affine connections. We explore their fundamental properties, establish conditions for their existence, and prove that these manifolds can also be nearly quasi-Einstein ...
Mohd Vasiulla   +3 more
doaj   +1 more source

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

open access: yesFEBS 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   +5 more
wiley   +1 more source

Quiver gauge theories: beyond reflexivity

open access: yesJournal of High Energy Physics, 2020
Reflexive polygons have been extensively studied in a variety of contexts in mathematics and physics. We generalize this programme by looking at the 45 different lattice polygons with two interior points up to SL(2,ℤ) equivalence.
Jiakang Bao   +2 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

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