Results 21 to 30 of about 734,895 (260)
Alterations in microglial morphology concentrate in the habitual sleeping period of the mouse
Glia, Volume 71, Issue 2, Page 366-376, February 2023., 2023 Main Points We found regional differences of microglial morphology between the somatosensory cortex (SC), hippocampus (HC) and basal forebrain (BF). Cortical‐, but not HC‐ or BF microglial cell sizes negatively correlate with non‐REM sleep slow wave activity.
Sarah Katharina Steffens +2 more
wiley +1 more source
Ceylon Journal of Science, 2016 Polygons can conveniently represent real world objects. In automatic character recognition, shapes of individual letters are represented by polygons. In robotics, obstacles are represented using polygons.
K. R. Wijeweera, S. R. Kodituwakku
doaj +1 more source
Redirected Walking in Static and Dynamic Scenes Using Visibility Polygons [PDF]
IEEE Transactions on Visualization Computer Graphics, volume 27,
pages 4267-4277, 2021, 2021 We present a new approach for redirected walking in static and dynamic scenes that uses techniques from robot motion planning to compute the redirection gains that steer the user on collision-free paths in the physical space. Our first contribution is a mathematical framework for redirected walking using concepts from motion planning and configuration ...
arxiv +1 more source
Integrated Environmental Assessment and Management, Volume 19, Issue 1, Page 175-190, January 2023., 2023 Abstract Decision‐making for pesticide registration by the US Environmental Protection Agency (USEPA) relies upon crop‐specific scenarios in a tiered framework. These standard modeling scenarios are stated to represent “…sites expected to produce runoff greater than would be expected at 90% of the sites for a given crop/use.” This study developed a ...
Amy Ritter +3 more
wiley +1 more source
Perception of Human Motion with Different Geometric Models [PDF]
IEEE Transactions on Visualization and Computer Graphics,
4(4):101-113, December 1998, 2023 Human figures have been animated using a variety of geometric models including stick figures, polygonal models, and NURBS-based models with muscles, flexible skin, or clothing. This paper reports on experimental results indicating that a viewer's perception of motion characteristics is affected by the geometric model used for rendering.
arxiv +1 more source
Computer graphics forum (Print), 2020 The discrete Laplace‐Beltrami operator for surface meshes is a fundamental building block for many (if not most) geometry processing algorithms. While Laplacians on triangle meshes have been researched intensively, yielding the cotangent discretization ...
A. Bunge +3 more
semanticscholar +1 more source
Constructing certain families of 3‐polytopal graphs
Journal of Graph Theory, Volume 102, Issue 3, Page 484-501, March 2023., 2023 Abstract Let n ≥ 3 $n\ge 3$ and R n ${R}_{n}$ be a 3‐polytopal graph such that for every 3 ≤ i ≤ n $3\le i\le n$, R n ${R}_{n}$ has at least one vertex of degree i $i$. We find the minimal vertex count for R n ${R}_{n}$. We then describe an algorithm to construct the graphs R n ${R}_{n}$. A dual statement may be formulated for faces of 3‐polytopes. The
Riccardo W. Maffucci
wiley +1 more source
Point-in-Convex Polygon and Point-in-Convex Polyhedron Algorithms with O(1) Complexity using Space Subdivision [PDF]
, 2022 There are many space subdivision and space partitioning techniques used in many algorithms to speed up computations. They mostly rely on orthogonal space subdivision, resp. using hierarchical data structures, e.g. BSP trees, quadtrees, octrees, kd-trees, bounding volume hierarchies, etc.
arxiv +1 more source
Coral reef erosion: In situ measurement on different dead coral substrates on a Caribbean reef
Limnology and Oceanography, Volume 67, Issue 12, Page 2734-2749, December 2022., 2022 Abstract Widespread mortality of reef‐building coral substantially reduces the capacity for reef growth and makes available extensive bare substrate areas that in the absence of coral recovery will be eroded by a variety of external and internal bioeroders.
Ana Molina‐Hernández +4 more
wiley +1 more source
Lasers in Surgery and Medicine, Volume 54, Issue 10, Page 1288-1297, December 2022., 2022 Abstract Introduction The ability of ablative fractional lasers (AFL) to enhance topical drug uptake is well established. After AFL delivery, however, drug clearance by local vasculature is poorly understood. Modifications in vascular clearance may enhance AFL‐assisted drug concentrations and prolong drug dwell time in the skin.
Emily Wenande +8 more
wiley +1 more source