Results 71 to 80 of about 7,539,459 (382)

Multiview Differential Geometry of Curves

open access: yes, 2016
The field of multiple view geometry has seen tremendous progress in reconstruction and calibration due to methods for extracting reliable point features and key developments in projective geometry.
Fabbri, Ricardo, Kimia, Benjamin
core   +1 more source

Adaptive Non-Rigid Inpainting of 3D Point Cloud Geometry

open access: yes, 2018
In this letter, we introduce several algorithms for geometry inpainting of 3D point clouds with large holes. The algorithms are examplar-based: hole filling is performed iteratively using templates near the hole boundary to find the best matching regions
Bajic, Ivan V.   +2 more
core   +1 more source

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Cosmological evolution and dark energy in osculating Barthel–Randers geometry

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We consider the cosmological evolution in an osculating point Barthel–Randers type geometry, in which to each point of the space-time manifold an arbitrary point vector field is associated.
Rattanasak Hama   +3 more
doaj   +1 more source

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

open access: yesFEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro   +2 more
wiley   +1 more source

Thermodynamic geometry of three-dimensional Einstein–Maxwell-dilaton black hole

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
The thermodynamics of a three-dimensional Einstein–Maxwell-dilaton black hole is investigated using the method of thermodynamic geometry. According to the definition of thermodynamic geometry and the first law of the black hole, two-dimensional Ruppeiner
Xin-Yang Wang, Ming Zhang, Wen-Biao Liu
doaj   +1 more source

Relativity and Singularities - A Short Introduction for Mathematicians [PDF]

open access: yes, 2005
We summarize the main ideas of General Relativity and Lorentzian geometry, leading to a proof of the simplest of the celebrated Hawking-Penrose singularity theorems.
Natario, Jose
core   +5 more sources

Critical points when there is no saddle point geometry [PDF]

open access: yesTopological Methods in Nonlinear Analysis, 1995
Using the topological method of linking subsets [the author and \textit{K. Tintarev}, Bull. Soc. Math. Belg., Sér. B 44, 249-261 (1992; Zbl 0785.58017)]the author proves two abstract theorems that imply certain extensions of the saddle point theorem of \textit{P. H. Rabinowitz} [Reg. Conf. Ser. Math. 65 (1986; Zbl 0609.58002)].
openaire   +3 more sources

Exploring lipid diversity and minimalism to define membrane requirements for synthetic cells

open access: yesFEBS Letters, EarlyView.
Designing the lipid membrane of synthetic cells is a complex task, in which its various roles (among them solute transport, membrane protein support, and self‐replication) should all be integrated. In this review, we report the latest top‐down and bottom‐up advances and discuss compatibility and complexity issues of current engineering approaches ...
Sergiy Gan   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy