Results 21 to 30 of about 312,533 (139)

Regulation of Clostridium difficile Spore Formation by the SpoIIQ and SpoIIIA Proteins. [PDF]

open access: yesPLoS Genetics, 2015
Sporulation is an ancient developmental process that involves the formation of a highly resistant endospore within a larger mother cell. In the model organism Bacillus subtilis, sporulation-specific sigma factors activate compartment-specific ...
Kelly A Fimlaid   +4 more
doaj   +1 more source

Distance Magic Cartesian Products of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2016
A distance magic labeling of a graph G = (V,E) with |V | = n is a bijection ℓ : V → {1, . . . , n} such that the weight of every vertex v, computed as the sum of the labels on the vertices in the open neighborhood of v, is a constant.
Cichacz Sylwia   +3 more
doaj   +1 more source

Group-antimagic Labelings of Multi-cyclic Graphs

open access: yesTheory and Applications of Graphs, 2016
Let $A$ be a non-trivial abelian group. A connected simple graph $G = (V, E)$ is $A$-\textbf{antimagic} if there exists an edge labeling $f: E(G) \to A \backslash \{0\}$ such that the induced vertex labeling $f^+: V(G) \to A$, defined by $f^+(v) = \Sigma$
Dan Roberts, Richard Low
doaj   +1 more source

Labeling Points with Rectangles of Various Shapes [PDF]

open access: yes, 2001
We deal with a map-labeling problem, named LOFL (Left-part Ordered Flexible Labeling), to label a set of points in a plane with polygonal obstacles. The label for each point is selected from a set of rectangles with various shapes satisfying the left ...
Nakano, Shin-Ichi   +7 more
core   +1 more source

Calcium Mobilisation Assay in Response to Chemokine Stimulation

open access: yesBio-Protocol, 2012
This assay is used to measure calcium mobilization in lymphocytes (either in primary cells or cell lines) in response to chemokine stimulation using ratiometric analysis. It has also been used for measuring TCR mediated calcium flux.
Darran Cronshaw
doaj   +1 more source

Studying the salt dependence of the binding of sigma70 and sigma32 to core RNA polymerase using luminescence resonance energy transfer. [PDF]

open access: yesPLoS ONE, 2009
The study of protein-protein interactions is becoming increasingly important for understanding the regulation of many cellular processes. The ability to quantify the strength with which two binding partners interact is desirable but the accurate ...
Bryan T Glaser   +4 more
doaj   +1 more source

Union of Distance Magic Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2017
A distance magic labeling of a graph G = (V,E) with |V | = n is a bijection ℓ from V to the set {1, . . . , n} such that the weight w(x) = ∑y∈NG(x) ℓ(y) of every vertex x ∈ V is equal to the same element μ, called the magic constant.
Cichacz Sylwia, Nikodem Mateusz
doaj   +1 more source

Trends in Sigma-1 Receptor Research: A 25-Year Bibliometric Analysis

open access: yesFrontiers in Pharmacology, 2019
Purpose: There are previous reviews focused on Sigma-1 receptor but no bibliometric studies examining this field as a whole. This article aims to present a global view of Sigma-1 receptor research and its intellectual structure.Methods: We used ...
Luz Romero, Enrique Portillo-Salido
doaj   +1 more source

ANALISIS MENURUNKAN CACAT TUTUP BOTOL TABLET SAKATONIKABC DENGAN METODE SIX SIGMA DI PT BINTANG TOEDJOE [PDF]

open access: yes, 2016
PT Bintang Toedjoe adalah sebuah perusahaan manufaktur yang bergerak dalam bidang farmasi mulai dari awal proses sampai menjadi sebuah produk akhir berupa obat.
Ramdhani, Mufti   +3 more
core   +2 more sources

Weighted antimagic labeling [PDF]

open access: yes, 2017
A graph G = (V, E) is weighted-k-antimagic if for each w : V -> R, there is an injective function f : E -> {1,...,vertical bar E vertical bar + k} such that the following sums are all distinct: for each vertex u, Sigma(v:uv is an element of E)f (uv) + w ...
José Zamora   +3 more
core   +1 more source

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