Results 71 to 80 of about 206,500 (313)

Space: The Re-Visioning Frontier of Biological Image Analysis with Graph Theory, Computational Geometry, and Spatial Statistics

Mathematics, 2021
Every biological image contains quantitative data that can be used to test hypotheses about how patterns were formed, what entities are associated with one another, and whether standard mathematical methods inform our understanding of biological ...
John R. Jungck, Michael J. Pelsmajer, Camron Chappel, Dylan Taylor   +3 more
doaj   +1 more source

Homotopy Measures for Representative Trajectories [PDF]

, 2015
An important task in trajectory analysis is defining a meaningful representative for a cluster of similar trajectories. Formally defining and computing such a representative r is a challenging problem.
Sub Computational Geometry, Löffler, Maarten, Chambers, Erin, Chambers, Erin W., Computational Geometry, Löffler, M., Staals, Frank, Staals, F., Chambers, Erin W, Kostitsyna, I., Kostitsyna, Irina, Chambers, E.W., Löffler, M, Kostitsyna, I Irina   +13 more
core   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Segmentation of Overlapping Chromosome Images Using Computational Geometry

Walailak Journal of Science and Technology, 2011
Current systems for automatic chromosome classification are interactive and require human intervention for correct separation between touching and overlapping chromosomes.
Wacharapong SRISANG, Krisanadej JAROENSUTASINEE, Mullica JAROENSUTASINEE   +2 more
doaj   +1 more source

Recognizing a DOG is Hard, But Not When It is Thin and Unit [PDF]

, 2016
We define the notion of disk-obedience for a set of disks in the plane and give results for diskobedient graphs (DOGs), which are disk intersection graphs (DIGs) that admit a planar embedding with vertices inside the corresponding disks.
Evans, Will, Sub Computational Geometry, Löffler,, M.,, Löffler, Maarten, Evans,, W.,, Van Garderen,, M.,, Polishchuk,, V.,, Polishchuk, Valentin, Garderen, Mereke van, van Garderen, Mereke, Computational Geometry, Evans, William   +11 more
core   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source

International Conference “Geometry, Topology, and Applications”

Моделирование и анализ информационных систем, 2013
The International Conference on “Geometry, Topology, and Applications”, dedicated to the upcoming 70th birthday of Nikolai Dolbilin, was organized by the International Delaunay Laboratory on Discrete and Computational Geometry and took place in September
A. Garber, H. Edelsbrunner, A. Ivanov, O. Musin, M. Nevskii   +4 more
doaj   +1 more source

Leveraging the mathematics of shape for solar magnetic eruption prediction

Journal of Space Weather and Space Climate, 2020
Current operational forecasts of solar eruptions are made by human experts using a combination of qualitative shape-based classification systems and historical data about flaring frequencies. In the past decade, there has been a great deal of interest in
Deshmukh Varad, Berger Thomas E., Bradley Elizabeth, Meiss James D.   +3 more
doaj   +1 more source

Computational Line Geometry [PDF]

, 2010
The geometry of lines occurs naturally in such different areas as sculptured surface machining, computation of offsets and medial axes, surface reconstruction for reverse engineering, geometrical optics, kinematics and motion design, and modeling of ...
Pottmann, Helmut, Wallner, Johannes
core   +1 more source

Temporal Interference Stimulation of Centromedian‐Parafascicular Complex in Disorders of Consciousness: A Pilot Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Treatment of disorders of consciousness (DoC) remains a major clinical challenge, and noninvasive, targeted modulation of deep brain structures has emerged as a promising therapeutic strategy. We aimed to evaluate the feasibility/safety and preliminary effects of thalamic temporal interference stimulation (TIS) targeting centromedian‐
Gengyao Hu, Changgeng Song, Dianwei Wu, Xiaoqian Niu, Jianmin Hao, Lijuan Liu, Xiaogang Kang, Wen Jiang   +7 more
wiley   +1 more source