Results 51 to 60 of about 5,392,495 (304)

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

From Size to Age and Type Structure Dependent Branching: A First Step to Sexual Reproduction in General Population Processes

open access: yes, 2016
Classical branching processes, even the most general, share the property that individuals are supposed to multiply independently of one another, at least given some environment that in its turn is supposed to be unaffected by the population.
Jagers, Peter   +5 more
core   +1 more source

On A- and B-Theoretic Elements of Branching Spacetimes [PDF]

open access: yes, 2011
This paper assesses branching spacetime theories in light of metaphysical considerations concerning time. I present the A, B, and C series in terms of the temporal structure they impose on sets of events, and raise problems for two elements of extant ...
Matt Farr, Farr, Matt
core   +1 more source

Spreading of memes on multiplex networks

open access: yesNew Journal of Physics, 2019
A model for the spreading of online information or ‘memes’ on multiplex networks is introduced and analyzed using branching-process methods. The model generalizes that of (Gleeson et al 2016 Phys. Rev. X) in two ways.
Joseph D O’Brien   +2 more
doaj   +1 more source

Branching Bisimilarity of Normed BPA Processes as a Rational Monoid [PDF]

open access: yesLogical Methods in Computer Science, 2017
The paper presents an elaborated and simplified version of the structural result for branching bisimilarity on normed BPA (Basic Process Algebra) processes that was the crux of a conference paper by Czerwinski and Jancar (arxiv 7/2014 and LiCS 2015 ...
Petr Jancar
doaj   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

A branching space-times view on quantum error correction [PDF]

open access: yes, 2007
In this paper we describe some first steps for bringing the framework of branching space-times to bear on quantum information theory. Our main application is quantum error correction.
Muller, Thomas
core   +1 more source

Lévy-driven polling systems and continuous-state branching processes

open access: yesStochastic Systems, 2011
In this paper we consider a ring of N ≥ 1 queues served by a single server in a cyclic order. After having served a queue (according to a service discipline that may vary from queue to queue), there is a switch-over period and then the server serves the ...
Michel Mandjes   +3 more
doaj  

Information properties of the nonparametric maximum likelihood estimators in branching processes with random migration

open access: yesBiomath
We consider the nonparametric maximum likelihood estimation of single type discrete time branching processes with random migration. These processes occur naturally in situations where besides the random reproduction both emigration and immigration of ...
Tsvetomira Zlatkova, Vessela Stoimenova
doaj   +1 more source

Application of branching processes to solve boundary value problems for the semi-linear Helmholtz equation [PDF]

open access: yesE3S Web of Conferences
This work devoted to construct a probabilistic model for solving boundary value problems for the semi-linear Helmholtz equation. Probabilistic representations of problem solving in the form of the mathematical expectation of some random variable are ...
Rasulov Abdujabar, Raimova Gulnora
doaj   +1 more source

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