Results 121 to 130 of about 1,083,966 (327)
, 2020 Preference for curved over sharp-angled contours is a well-known effect. However, it was quite unexplored during the 20th century and only a few sporadic studies dealt with it. Nevertheless, there has been renewed interest in this topic over the past two decades.
Guido Corradi, Enric Munar
openaire +3 more sources
Membrane curvature in cell biology: An integration of molecular mechanisms
Journal of Cell Biology, 2016 Curving biological membranes establishes the complex architecture of the cell and mediates membrane traffic to control flux through subcellular compartments.
Iris K. Jarsch, F. Daste, J. Gallop
semanticscholar +1 more source
Molecular Oncology, EarlyView.Breast tumor samples scored for metabolic deregulation (M1 to M3) were given a hypoxia score (HS). The highest HS occurred in patients with strongest metabolic deregulation (M3), supporting tumor aggressiveness. HS correlated with the highest number of metabolic pathways in M1. This suggests hypoxia to be an early event in metabolic deregulation.
Raefa Abou Khouzam +2 more
wiley +1 more source
Coordinate-free study of Finsler spaces of $H_{p}$-scalar curvature [PDF]
arXiv, 2018 The aim of the present paper is to provide an \emph{intrinsic} investigation of special Finsler spaces of $H_{p}$-scalar curvature and of $H_{p}\,$-constant curvature. Characterizations of such spaces are shown. Sufficient condition for Finsler space of $H_{p}$-scalar curvature to be of perpendicular scalar curvature is investigated.
arxiv
Negative Curvature Hollow-Core Optical Fiber
IEEE Journal of Selected Topics in Quantum Electronics, 2016 The background, optical properties, and applications of low-loss negative curvature hollow-core fiber are reviewed. Data on spectral attenuation are collated and extended.
F. Yu, J. Knight
semanticscholar +1 more source
Molecular Oncology, EarlyView.This study simultaneously investigated circulating tumor cells (CTCs) and exosomes from small‐cell lung cancer (SCLC) patients. The elevated expression of JUNB and CXCR4 in CTCs was a poor prognostic factor for SCLC patients, whereas exosomal overexpression of these biomarkers revealed a high discrimination ability of patients from healthy individuals,
Dimitrios Papakonstantinou +13 more
wiley +1 more source
The method of analysis of a reinforced concrete section under bending in the post-yield range
Budownictwo i Architektura, 2013 Predicting the behavior of plastic hinges subjected to large inelastic deformations caused by extreme loads such as earthquakes plays an important role in assessing maximum stable deformation capacities of framed concrete structures.
Jacek Korentz
doaj +1 more source
Mean Curvature Driven Ricci Flow [PDF]
arXiv, 2009 We obtain the evolution equations for the Riemann tensor, the Ricci tensor and the scalar curvature induced by the mean curvature flow. The evolution for the scalar curvature is similar to the Ricci flow, however, negative, rather than positive, curvature is preserved. Our results are valid in any dimension.
arxiv
Molecular Oncology, EarlyView.This study explores how sepsis affects GC progression by creating an immunosuppressive environment. Our findings reveal that sepsis promotes immune dysregulation, enhancing tumor growth and metastasis. Targeting the PD‐1/PD‐L1 pathway with monoclonal antibodies shows potential for restoring immune function and improving outcomes in cancer patients ...
Yiding Wang +10 more
wiley +1 more source
Vision Research, 1989 Hypercomplex or endstopped visual cortical neurons are usually supposed to be concerned with length or end point analysis. However, recent evidence demonstrates that endstopped neurons are curvature-selective, a connection that we explore here in some detail.
Allan C. Dobbins +2 more
openaire +4 more sources