Results 71 to 80 of about 2,332,619 (281)
Revista Digital Matemática, Educación e InternetEste artículo presenta un libro interactivo de estadística destinado al tercer año de primaria, dirigido a niños y niñas de entre 8 y 9 años aproximadamente.
Carlos Monge Madriz +3 more
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Solving the Large-Scale TSP Problem in 1 h: Santa Claus Challenge 2020
Frontiers in Robotics and AI, 2021 The scalability of traveling salesperson problem (TSP) algorithms for handling large-scale problem instances has been an open problem for a long time. We arranged a so-called Santa Claus challenge and invited people to submit their algorithms to solve a ...
Radu Mariescu-Istodor, Pasi Fränti
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$H$-product and $H$-threshold graphs
, 2011 This paper is the continuation of the research of the author and his colleagues of the {\it canonical} decomposition of graphs. The idea of the canonical decomposition is to define the binary operation on the set of graphs and to represent the graph ...
Bang-Jensen +26 more
core +1 more source
Graphs whose line graphs are ring graphs [PDF]
AKCE International Journal of Graphs and Combinatorics, 2020 Given a graph H, a path of length at least two is called an H-path if meets H exactly in its ends. A graph G is a ring graph if each block of G which is not a bridge or a vertex can be constructed inductively by starting from a single cycle and then in each step adding an H-path that meets graph H in the previous step in two adjacent vertices.
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Geometric Biplane Graphs II: Graph Augmentation [PDF]
Graphs and Combinatorics, 2015 We study biplane graphs drawn on a finite point set $S$ in the plane in general position. This is the family of geometric graphs whose vertex set is $S$ and which can be decomposed into two plane graphs. We show that every sufficiently large point set admits a 5-connected biplane graph and that there are arbitrarily large point sets that do not admit ...
Hurtado Díaz, Fernando Alfredo +7 more
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pH‐mediated activation of the lysosomal arginine sensor SLC38A9
FEBS Letters, EarlyView.Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley +1 more source
Binary Numeration System with Alternating Signed Digits and Its Graph Theoretical Relationship
AlgorithmsThe binary number system is the basic number representation in computing. We can encode natural numbers with finite 0-1 sequences. The representation of natural numbers is based on this system. However, this poses problems and is technically not perfect.
Péter Hajnal
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Temporal Graph Traversals Using Reinforcement Learning With Proximal Policy Optimization
IEEE Access, 2020 Graphs in real-world applications are dynamic both in terms of structures and inputs. Information discovery in such networks, which present dense and deeply connected patterns locally and sparsity globally can be time consuming and computationally costly.
Samuel Henrique Silva +2 more
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Molecular Oncology, EarlyView.Development of therapies targeting cancer‐associated fibroblasts (CAFs) necessitates preclinical model systems that faithfully represent CAF–tumor biology. We established an in vitro coculture system of patient‐derived pancreatic CAFs and tumor cell lines and demonstrated its recapitulation of primary CAF–tumor biology with single‐cell transcriptomics ...
Elysia Saputra +10 more
wiley +1 more source
Graph Equation for Line Graphs and m-Step Graphs [PDF]
Graphs and Combinatorics, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kim, Seog-Jin +4 more
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