Results 11 to 20 of about 995,191 (403)

The Group Structure of Pivot and Loop Complementation on Graphs and Set Systems [PDF]

open access: yes, 2011
We study the interplay between principal pivot transform (pivot) and loop complementation for graphs. This is done by generalizing loop complementation (in addition to pivot) to set systems. We show that the operations together, when restricted to single
Aigner   +22 more
core   +2 more sources

Testing of Auxotrophic Selection Markers for Use in the Moss Physcomitrella Provides New Insights into the Mechanisms of Targeted Recombination

open access: yesFrontiers in Plant Science, 2017
The moss Physcomitrella patens is unique among plants in that homologous recombination can be used to knock out genes, just like in yeast. Furthermore, transformed plasmids can be rescued from Physcomitrella back into Escherichia coli, similar to yeast ...
Mikael Ulfstedt   +3 more
doaj   +1 more source

In vivo Emergence of Colistin Resistance in Carbapenem-Resistant Klebsiella pneumoniae Mediated by Premature Termination of the mgrB Gene Regulator

open access: yesFrontiers in Microbiology, 2021
Multidrug-resistant (MDR) Klebsiella pneumoniae is a severe threat to public health worldwide. Worryingly, colistin resistance, one of the last-line antibiotics for the treatment of MDR K. pneumoniae infection, has been increasingly reported.
Yingying Kong   +7 more
doaj   +1 more source

NanoLuc Complementation Reporter Optimized for Accurate Measurement of Protein Interactions in Cells.

open access: yesACS Chemical Biology, 2016
Protein-fragment complementation assays (PCAs) are widely used for investigating protein interactions. However, the fragments used are structurally compromised and have not been optimized nor thoroughly characterized for accurately assessing these ...
Andrew S. Dixon   +13 more
semanticscholar   +1 more source

Subgraph Complementation [PDF]

open access: yesAlgorithmica, 2020
AbstractA subgraph complement of the graph G is a graph obtained from G by complementing all the edges in one of its induced subgraphs. We study the following algorithmic question: for a given graph G and graph class $${\mathscr {G}}$$G, is there a subgraph complement of G which is in $${\mathscr {G}}$$G?
Fomin, Fedor V.   +3 more
openaire   +9 more sources

A Mixed Infection of Helenium Virus S With Two Distinct Isolates of Butterbur Mosaic Virus, One of Which Has a Major Deletion in an Essential Gene

open access: yesFrontiers in Microbiology, 2020
Multiple carlaviruses infect various ornamental plants, often having limited host ranges and causing minor symptoms, yet often reducing yield or quality.
John Hammond   +5 more
doaj   +1 more source

Visualization of protein interactions in living plant cells using bimolecular fluorescence complementation.

open access: yesThe Plant Journal, 2004
Dynamic networks of protein-protein interactions regulate numerous cellular processes and determine the ability to respond appropriately to environmental stimuli.
Michael Walter   +11 more
semanticscholar   +1 more source

On self-complementation [PDF]

open access: yes, 1985
We prove that, with very few exceptions, every graph of order n, n - 0, 1(mod 4) and size at most n - 1, is contained in a self-complementary graph of order n.
Benhocine, A., Wojda, A.P.
core   +4 more sources

Shifters as sentence operators [PDF]

open access: yesJužnoslovenski Filolog, 2017
The author presents the thesis that complementary clauses and relative clauses are de facto noun phrases founded on the shifter-tandems of the type that, which..., that, who... Mutatis mutandis, constructions constituted with causal conjunctions
Topolińska Zuzanna V.
doaj   +1 more source

A split fluorescent reporter with rapid and reversible complementation

open access: yesNature Communications, 2019
Interactions between proteins play an essential role in metabolic and signaling pathways, cellular processes and organismal systems. We report the development of splitFAST, a fluorescence complementation system for the visualization of transient protein ...
Alison G. Tebo, Arnaud Gautier
semanticscholar   +1 more source

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