Results 111 to 120 of about 12,533 (241)
Finite Groupoids, Finite Coverings and Symmetries in Finite Structures
CoRR, 2014 We propose a novel construction of finite hypergraphs and relational structures that is based on reduced products with Cayley graphs of groupoids. To this end we construct groupoids whose Cayley graphs have large girth not just in the usual sense, but with respect to a discounted distance measure that contracts arbitrarily long sequences of edges ...
openaire +2 more sources
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
On the groups satisfying the converse of Schur's theorem [PDF]
International Journal of Group Theory, 2012 A famous theorem of Schur states that for a group G finiteness of G/Z(G) implies the finiteness of G′. The converse of Schur’s theorem is an interesting problem which has been considered by some authors.
Saeed Kayvanfar +2 more
doaj
Finiteness theorems for complements of large divisors [PDF]
, 2022 We prove finiteness results on integral points on complements of large divisors in projective varieties over finitely generated fields of characteristic zero.
Licht, Philipp
core
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
Esquisses d'une topologie des transgressions spatio-temporelles dans quelques romans contemporains
Études romanes de Brno, 2013 This intervention is about some temporal (even spatial) transgressions which can be encountered in the modern novel. Some examples will help to draft a topology of such transgressions.
Thierry Saint Arnoult
doaj
On b-repdigit polygonal numbers [PDF]
Notes on Number Theory and Discrete MathematicsWe prove a finiteness theorem concerning repdigits in base b≥2 represented by a fixed quadratic polynomial. We also show that there is a finite number of polygonal numbers that are also b-repdigits for all b≥2 provided that (b,s) ∈\ {((8(s-2)/(s-4))(d+1),
Adriana Mora, Eric Bravo
doaj +1 more source
Dedekind Finiteness in Topoi [PDF]
, 1987 A Dedekind finite object in a topos is an object such that any monic endomorphism is an epimorphism. This paper proves the basic properties of Dedekind finiteness and then gives examples which show that the class of Dedekind finite objects is not closed ...
Stout, Lawrence, Stout, Lawrence Neff
core +1 more source
Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers
FEBS Letters, EarlyView.Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui +4 more
wiley +1 more source
Cohomological finiteness properties of the Brin-Thompson-higman groups 2V and 3V
, 2010 We show that Brin's generalisations 2V and 3V of the Thompson-Higman group V are of type FP_\infty.
Martinez-Perez, C. +2 more
core +1 more source