Results 61 to 70 of about 2,666,039 (345)

Edge Partitions of Optimal $2$-plane and $3$-plane Graphs

open access: yes, 2018
A topological graph is a graph drawn in the plane. A topological graph is $k$-plane, $k>0$, if each edge is crossed at most $k$ times. We study the problem of partitioning the edges of a $k$-plane graph such that each partite set forms a graph with a ...
CSA Nash-Williams   +12 more
core   +1 more source

Intersection graphs of curves in the plane

open access: yesJournal of Combinatorial Theory, Series B, 1976
AbstractLet V be a set of curves in the plane. The corresponding intersection graph has V as the set of vertices, and two vertices are connected by an edge if and only if the two corresponding curves intersect in the plane.It is shown that the set of intersection graphs of curves in the plane is a proper subset of the set of all undirected graphs ...
Shimon Even   +2 more
openaire   +2 more sources

On the minimum size of maximal IC-plane graphs

open access: yesAIMS Mathematics
A graph is IC-planar if it admits a drawing with at most one crossing per edge so that each vertex is incident to at most one crossing edge, and an IC-plane graph means such a drawing of an IC-planar graph.
Rui Xu
doaj   +1 more source

Auto-completion of contours in sketches, maps and sparse 2D images based on topological persistence. [PDF]

open access: yes, 2014
We design a new fast algorithm to automatically complete closed contours in a finite point cloud on the plane. The only input can be a scanned map with almost closed curves, a hand-drawn artistic sketch or any sparse dotted image in 2D without any extra ...
Kurlin, V.
core   +1 more source

Ergothioneine supplementation improves pup phenotype and survival in a murine model of spinal muscular atrophy

open access: yesFEBS Letters, EarlyView.
Spinal muscular atrophy (SMA) is a genetic disease affecting motor neurons. Individuals with SMA experience mitochondrial dysfunction and oxidative stress. The aim of the study was to investigate the effect of an antioxidant and neuroprotective substance, ergothioneine (ERGO), on an SMNΔ7 mouse model of SMA.
Francesca Cadile   +8 more
wiley   +1 more source

ROBUST AND ACCURATE PLANE SEGMENTATION FROM POINT CLOUDS OF STRUCTURED SCENES [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Plane segmentation from the point cloud is an important step in various types of geo-information related to human activities. In this paper, we present a new approach to accurate segment planar primitives simultaneously by transforming it into the best ...
P. Hu, Y. Liu, M. Tian, M. Hou
doaj   +1 more source

Percolation and Connectivity in the Intrinsically Secure Communications Graph [PDF]

open access: yes, 2010
The ability to exchange secret information is critical to many commercial, governmental, and military networks. The intrinsically secure communications graph (iS-graph) is a random graph which describes the connections that can be securely established ...
Pinto, Pedro C., Win, Moe Z.
core   +2 more sources

Plane elementary bipartite graphs

open access: yesDiscrete Applied Mathematics, 2000
A connected graph is elementary if the union of all perfect matchings induces a connected subgraph. It is well known that a connected bipartite graph is elementary if and only if it is \(1\)-extendable, i.e., each edge is contained in a perfect matching. In this paper the authors mainly study properties of plane elementary bipartite graphs.
Zhang, HP, Zhang, FJ
openaire   +4 more sources

Point-Plane SLAM Using Supposed Planes for Indoor Environments

open access: yesItalian National Conference on Sensors, 2019
Simultaneous localization and mapping (SLAM) is a fundamental problem for various applications. For indoor environments, planes are predominant features that are less affected by measurement noise.
Xiaoyu Zhang   +4 more
semanticscholar   +1 more source

Single cis‐elements in brassinosteroid‐induced upregulated genes are insufficient to recruit both redox states of the BIL1/BZR1 DNA‐binding domain

open access: yesFEBS Letters, EarlyView.
Phytohormone brassinosteroid‐induced gene regulation by the transcription factor BIL1/BZR1 involves redox‐dependent DNA‐binding alternation and interaction with the transcription factor PIF4. The reduced BIL1/BZR1 dimer binds preferred cis‐elements, while oxidation alters its oligomerization state and disrupts DNA‐binding ability.
Shohei Nosaki   +4 more
wiley   +1 more source

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