Results 71 to 80 of about 117,700 (279)

Recognizing Visibility Graphs of Polygons with Holes and Internal-External Visibility Graphs of Polygons

open access: yes, 2018
Visibility graph of a polygon corresponds to its internal diagonals and boundary edges. For each vertex on the boundary of the polygon, we have a vertex in this graph and if two vertices of the polygon see each other there is an edge between their ...
Boomari, Hossein   +2 more
core  

A Biomarker‐Driven Ovary–Endometrium Organ‐on‐a‐Chip Mimicking 3D Multicellular Complexity and Menstrual Cyclicity for Predicting Reproductive Toxicity

open access: yesAdvanced Science, EarlyView.
We present a dual‐organ, biomarker‐integrated ovaryendometrium organ‐on‐a‐chip that recapitulates 3D tissue complexity, menstrual cycle dynamics, and hormonal crosstalk. This platform enables real‐time, cell‐typespecific fluorescent readouts of reproductive toxicity using ANGPTL4 and SERPINB2 as early‐response reporters.
Soo‐Rim Kim   +6 more
wiley   +1 more source

Biomechanical Phenotyping Reveals Unique Mechanobiological Signatures of Early‐Onset Colorectal Cancer

open access: yesAdvanced Science, EarlyView.
This study identifies a unique physical signature of colorectal cancer in younger adults: their tissues are mechanically stiffer than those in older patients with the same cancer. Furthermore, stromal remodeling in early‐onset colorectal cancer promotes epithelial mechanotransduction and proliferation, showing how mechanical alterations in the tissue ...
Nicole C. Huning   +18 more
wiley   +1 more source

Pick’s Theorem in Two-Dimensional Subspace of R3

open access: yesThe Scientific World Journal, 2015
In the Euclidean space R3, denote the set of all points with integer coordinate by Z3. For any two-dimensional simple lattice polygon P, we establish the following analogy version of Pick’s Theorem, kIP+1/2BP-1, where BP is the number of lattice points ...
Lin Si
doaj   +1 more source

Review and prospect of coal mine informatization constructio

open access: yesGong-kuang zidonghua, 2020
Based on the definition of coal mine informatization, the characteristics, typical problems and their representative solutions in different stages of coal mine informatization construction are reviewed, which include single machine(system) automation ...
DING Enjie   +3 more
doaj   +1 more source

From Sample to Mixed Reality: A Translational 3D MALDI Imaging Platform for Advanced 3D Spatial Omics Analysis of 3D Cell Culture Disease Models

open access: yesAdvanced Science, EarlyView.
A comprehensive technology platform enables high‐fidelity, volumetric MALDI imaging of 3D cell cultures by integrating custom embedding molds, a semi‐automated computational framework for 3D reconstruction, voxel‐instead of pixel‐based biomarker discovery, and immersive mixed reality data exploration.
Stefania Alexandra Iakab   +16 more
wiley   +1 more source

A Fast Algorithm for Covering Rectangular Orthogonal Polygons with a Minimum Number of r-Stars

open access: yesپژوهش‌های ریاضی, 2018
Introduction This paper presents an algorithm for covering orthogonal polygons with minimal number of guards. This idea examines the minimum number of guards for orthogonal simple polygons (without holes) for all scenarios and can also find a rectangular
Keivan Borna
doaj  

Mussel‐Bioinspired Edible Ca2+‐Crosslinked Alginate Hydrogel Electrodes for Glucose Gastrointestinal Monitoring

open access: yesAdvanced Science, EarlyView.
A fully edible soft electrode is engineered from Ca2⁺‐crosslinked alginate integrated with polydopamine, silver nanoparticles, and food‐grade glucose oxidase. The hybrid hydrogel combines ionic and electronic conduction, enabling efficient glucose‐to‐H2O2 conversion and catalytic reduction in simulated intestinal fluid.
Verdiana Marchianò   +10 more
wiley   +1 more source

Computing medial axis of a simple polygon in linear time based on R-L sequence

open access: yesGraphical Models
Medial axis computation has wide applications in pattern recognition, image processing, finite element mesh generation, and CNC tool path extraction. Aiming to explore intrinsic geometric attributes of the medial axis of a simple polygon which can be ...
Hongyu Chen, Xiaodiao Chen, Yizhao Xue
doaj   +1 more source

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