Results 51 to 60 of about 8,119,390 (363)

Bacterial Transformation Buffers Environmental Fluctuations through the Reversible Integration of Mobile Genetic Elements

open access: yesmBio, 2020
Horizontal gene transfer (HGT) promotes the spread of genes within bacterial communities. Among the HGT mechanisms, natural transformation stands out as being encoded by the bacterial core genome.
Gabriel Carvalho   +7 more
doaj   +1 more source

Teleological Essentialism: Generalized [PDF]

open access: yes, 2020
Natural/social kind essentialism is the view that natural kind categories, both living and non-living natural kinds, as well as social kinds (e.g., race, gender), are essentialized. On this view, artifactual kinds are not essentialized.
Keil F. C.   +5 more
core   +1 more source

The natural extension of the ?-transformation

open access: yesActa Mathematica Hungarica, 1996
For each real number β>1 the β-transformation is dened by Tβx = βx(mod1). In this paper the natural extension Tβ of the ergodic system underlying Tβ is explicitly given. Furthermore, it is shown that a certain induced system of this natural extension is Bernoulli. Since Tβ is weakly mixing, due to W. Parry, it follows from a deep result of A.
Dajani, K., Kraaikamp, C., Solomyak, B.
openaire   +4 more sources

rpoN1, but not rpoN2, is required for twitching motility, natural competence, growth on nitrate and virulence of Ralstonia solanacearum

open access: yesFrontiers in Microbiology, 2015
The plant pathogen Ralstonia solanacearum has two genes encoding for the sigma factor 54: rpoN1, located in the chromosome and rpoN2, located in a distinct ‘megaplasmid’ replicon.
Suvendra Kumar Ray   +7 more
doaj   +1 more source

Naturality and Induced Representations [PDF]

open access: yes, 2000
We show that induction of covariant representations for C*-dynamical systems is natural in the sense that it gives a natural transformation between certain crossed-product functors.
Echterhoff, Siegfried   +3 more
core   +3 more sources

A∞-subalgebras and natural transformations [PDF]

open access: yesHomology, Homotopy and Applications, 2008
We consider a localization construction which appears, at least conjecturally, in symplectic geometry. Besides the general algebraic theory, we also look at a specific example, coming from mirror symmetry.
openaire   +3 more sources

Natural transformers [PDF]

open access: yesNature Reviews Microbiology, 2012
Top of pageAbstract This month's Genome Watch highlights in natura cases showing the role of recombination in bacterial evolution, and in vitro studies that focus on the mechanisms of recombination.
openaire   +2 more sources

On descent for coalgebras and type transformations [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2016
We find a criterion for a morphism of coalgebras over a Barr-exact category to be effective descent and determine (effective) descent morphisms for coalgebras over toposes in some cases.
Maurice Kianpi
doaj  

A Halocin Promotes DNA Uptake in Haloferax mediterranei

open access: yesFrontiers in Microbiology, 2019
Halocins are antimicrobial peptides or proteins that are produced by halophilic archaea. Although their function in inhibiting the growth of closely related haloarchaeal strains is well known, other physiological functions of halocins have also been ...
Shaoxing Chen   +6 more
doaj   +1 more source

Growth and structural transformation [PDF]

open access: yes, 2013
Structural transformation refers to the reallocation of economic activity across the broad sectors agriculture, manufacturing, and services. This review article synthesizes and evaluates recent advances in the research on structural transformation.
Abraham   +108 more
core   +4 more sources

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