Results 11 to 20 of about 312,533 (139)

Sigma Partitioning: Complexity and Random Graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2018
A $\textit{sigma partitioning}$ of a graph $G$ is a partition of the vertices into sets $P_1, \ldots, P_k$ such that for every two adjacent vertices $u$ and $v$ there is an index $i$ such that $u$ and $v$ have different numbers of neighbors in $P_i$. The
Dehghan, Ali   +5 more
core   +2 more sources

Sigma 1 Receptor Co-Localizes with NRF2 in Retinal Photoreceptor Cells

open access: yesAntioxidants, 2021
Sigma 1 receptor (Sig1R), a modulator of cell survival, has emerged as a novel target for retinal degenerative disease. Studies have shown that activation of Sig1R, using the high affinity ligand (+)-pentazocine ((+)-PTZ), improves cone function in a ...
Mevish S. Siddiq   +6 more
core   +2 more sources

Six-sigma approach-based visibility graphs. [PDF]

open access: yesSci Rep
Visibility graphs transform time series into complex networks where nodes represent time indices and edges encode temporal visibility relationships. While these graphs preserve structural properties of time series, the semantic interpretation of derived ...
Ferenczi M, Kummer A, Abonyi J.
europepmc   +2 more sources

On the Integer-antimagic Spectra of Non-Hamiltonian Graphs

open access: yesTheory and Applications of Graphs, 2022
Let $A$ be a nontrivial abelian group. A connected simple graph $G = (V, E)$ is $A$-\textbf{antimagic} if there exists an edge labeling $f: E(G) \to A \setminus \{0\}$ such that the induced vertex labeling $f^+: V(G) \to A$, defined by $f^+(v) = \Sigma$ $
Wai Shiu, Richard Low
doaj   +1 more source

Some distance magic graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2018
A graph , where and is said to be a distance magic graph if there exists a bijection from the vertex set to the set such that, , for all , which is a constant and independent of , where is the open neighborhood of the vertex .
Aloysius Godinho, T. Singh
doaj   +2 more sources

Effects of Sigma-1 Receptor Ligands on Peripheral Nerve Regeneration

open access: yesCells, 2022
Peripheral nerve injuries lead to the loss of motor, sensory and autonomic functions in the territories supplied by the injured nerve. Currently, nerve injuries are managed by surgical repair procedures, and there are no effective drugs in the clinic for
Patrick Cottilli   +2 more
doaj   +1 more source

Improving Histopathology Laboratory Productivity: Process Consultancy and A3 Problem Solving [PDF]

open access: yesTürk Patoloji Dergisi, 2017
Objective: The ISO 17020 quality program has been run in our pathology laboratory for four years to establish an action plan for correction and prevention of identified errors.
Kutsal YÖRÜKOĞLU   +3 more
doaj   +1 more source

Inspection-Nerf: Rendering Multi-Type Local Images for Dam Surface Inspection Task Using Climbing Robot and Neural Radiance Field

open access: yesBuildings, 2023
For the surface defects inspection task, operators need to check the defect in local detail images by specifying the location, which only the global 3D model reconstruction can’t satisfy.
Kunlong Hong   +2 more
doaj   +1 more source

In Vivo Glutathione S-Transferases Superfamily Proteome Analysis: An Insight into Aedes albopictus Mosquitoes upon Acute Xenobiotic Challenges

open access: yesInsects, 2022
In this study, the induction of glutathione S-transferase (GST) enzymatic activities in Aedes albopictus under 24 h of xenobiotic challenges was investigated.
Siti Nasuha Hamzah   +7 more
doaj   +1 more source

Decomposition of complete graphs into connected bipartite unicyclic graphs with eight edges

open access: yesElectronic Journal of Graph Theory and Applications, 2019
We prove that each of the 34 non-isomorphic connected unicyclic bipartite graphs with eight edges decomposes the complete graph Kn whenever the necesary conditions are satisfied.
John Fahnenstiel, Dalibor Froncek
doaj   +1 more source

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