Results 51 to 60 of about 3,639,802 (341)
Chasing the line: Hutton’s contribution to the invention of contours [PDF]
Journal of Maps, 2019 This article describes one aspect of the history, invention and use of contour lines. We present a case that Charles Hutton – working for the Greenwich Royal Observatory – might have created one of the first accurate and useful contour maps, based on a survey of Schiehallion in Perthshire, Scotland. Hutton’s description of this map and his calculations
K. Rann, R. S. Johnson
openaire +5 more sources
Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia
FEBS Letters, EarlyView.This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley +1 more source
Visual contour tracking based on inner-contour model particle filter under complex background
EURASIP Journal on Image and Video Processing, 2019 In this paper, a novel particle filter–based visual contour tracking method is proposed, which uses inner-contour model to track contour object under complex background.
Songxiao Cao, Xuanyin Wang
doaj +1 more source
Горные науки и технологии, 2018 Methods of assessing quality of perimeter blasting when driving mine workings are considered. One of the main criteria is achieving “smooth” working contour.
O. G. Latyshev, D. V. Prischepa
doaj +1 more source
Making tau amyloid models in vitro: a crucial and underestimated challenge
FEBS Letters, EarlyView.This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley +1 more source
FEBS Letters, EarlyView.In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley +1 more source
Contour matching using the affine‐invariant support point set
IET Computer Vision, 2014 Moment has been widely used for contour matching. To use the moment to achieve contour matching under affine transformations, the affine‐invariant support point set (SPS) should be constructed first.
Wei Wang +4 more
doaj +1 more source
Top-down control in contour grouping. [PDF]
PLoS ONE, 2013 Human observers tend to group oriented line segments into full contours if they follow the Gestalt rule of 'good continuation'. It is commonly assumed that contour grouping emerges automatically in early visual cortex.
Gregor Volberg +2 more
doaj +1 more source
Social context prevents heat hormetic effects against mutagens during fish development
FEBS Letters, EarlyView.This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere +5 more
wiley +1 more source
On line fast detection of defective rice flour based on machine learning algorithm
Shipin yu jixie, 2022 Objective: To realize the rapid on-line detection of defective rice flour. Methods: Non-contact data acquisition of rice flour blocks through cameras, image upload and processing, obtained the contour perimeter and area, approximate contour perimeter and
TAN Lu-min, FENG Xin-gang
doaj +1 more source