Results 91 to 100 of about 787,356 (301)
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
ON SOME CLOSURE OPERATORS ON SEMIGROUPS
Demonstratio Mathematica, 1991 Let \(S\) be a semigroup, \(M \subseteq S\). We define \(N_ 1(m) = \{x\in S; x^ n\in M\) for almost all \(n\in N\}\), \(N_ 2(M)=\{x\in S; x^ n\in M\) for infinitely many \(n\in N\}\), \(N_ 3(M) = \{x \in S; x^ n \in M\) for at least one \(n\in N\}\), \(U_ 1(M) = N_ 1(M)\cup M\) and \(U_ 2(M) = N_ 2(M)\cup M\). In this paper the authors study topologies
Kollár, Dušan, Šulka, Robert
openaire +2 more sources
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
From torsion theories to closure operators and factorization systems [PDF]
Categories and General Algebraic Structures with Applications, 2020 Torsion theories are here extended to categories equipped with an ideal of 'null morphisms', or equivalently a full subcategory of 'null objects'. Instances of this extension include closure operators viewed as generalised torsion theories in a 'category
Marco Grandis, George Janelidze
doaj
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source
Isolated Suborders and their Application to Counting Closure Operators [PDF]
Logical Methods in Computer ScienceIn this paper we investigate the interplay between isolated suborders and closures. Isolated suborders are a special kind of suborders and can be used to diminish the number of elements of an ordered set by means of a quotient construction.
Roland Glück
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Molecular Oncology, EarlyView.Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary +1 more
wiley +1 more source
Rough sets based on Galois connections
International Journal of Applied Mathematics and Computer Science, 2020 Rough set theory is an important tool to extract knowledge from relational databases. The original definitions of approximation operators are based on an indiscernibility relation, which is an equivalence one.
Madrid Nicolás +2 more
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Molecular Oncology, EarlyView.A urine‐based digital PCR assay targeting two hotspot TERT promoter variants detected bladder cancer with high sensitivity and no false positives in this case–control cohort. The streamlined AbsoluteQ workflow outperformed Sanger sequencing and supports non‐invasive molecular testing for bladder cancer detection.
Anna Nykel +12 more
wiley +1 more source
Fourth Illinois Custom Spray Operators' Training School: summaries of presentations
, 1952 Illinois Custom Spray Operators' School Summaries of Presentations. January 24-25, 1952. In cooperation with the University of Illinois College of Agriculture, Agricultural Extension Service, College of Veterinary Medicine, Institute of Aviation, and ...
Illinois Custom Spray Operators' School
core +1 more source