Results 31 to 40 of about 53,979 (264)

Analytic varieties with finite volume amoebas are algebraic [PDF]

open access: yes, 2011
In this paper, we study the amoeba volume of a given $k-$dimensional generic analytic variety $V$ of the complex algebraic torus $(\C^*)^n$. When $n\geq 2k$, we show that $V$ is algebraic if and only if the volume of its amoeba is finite. In this precise
Madani, Farid, Nisse, Mounir
core   +3 more sources

The dimension of an amoeba [PDF]

open access: yes, 2019
Answering a question by Nisse and Sottile, we derive a formula for the dimension of the amoeba of an irreducible algebraic variety.Comment: 8 pages, several small improvements, final ...
Draisma, Jan   +2 more
core   +3 more sources

Dimer models from mirror symmetry and quivering amoebae [PDF]

open access: yes, 2008
Dimer models are 2-dimensional combinatorial systems that have been shown to encode the gauge groups, matter content and tree-level superpotential of the world-volume quiver gauge theories obtained by placing D3-branes at the tip of a singular toric ...
Feng, B.   +3 more
core   +1 more source

Environmental stress promotes the persistence of facultative bacterial symbionts in amoebae

open access: yesEcology and Evolution, 2023
Amoebae are one major group of protists that are widely found in natural and engineered environments. They are a significant threat to human health not only because many of them are pathogenic but also due to their unique role as an environmental shelter
Zihe Wang   +8 more
doaj   +1 more source

The large GTPase atlastin controls ER remodeling around a pathogen vacuole

open access: yesCommunicative & Integrative Biology, 2018
The ubiquitous environmental bacterium Legionella pneumophila is the causative agent of Legionnaires' pneumonia and replicates in free-living protozoa and mammalian macrophages in a specific compartment, the Legionella-containing vacuole (LCV).
Bernhard Steiner   +4 more
doaj   +1 more source

Bordetella bronchiseptica exploits the complex life cycle of Dictyostelium discoideum as an amplifying transmission vector. [PDF]

open access: yesPLoS Biology, 2017
Multiple lines of evidence suggest that Bordetella species have a significant life stage outside of the mammalian respiratory tract that has yet to be defined.
Dawn L Taylor-Mulneix   +11 more
doaj   +1 more source

Escherichia coli Strains Display Varying Susceptibility to Grazing by the Soil Amoeba Dictyostelium discoideum

open access: yesMicroorganisms, 2023
Recent studies have shown that Escherichia coli can survive in different environments, including soils, and they can maintain populations in sterile soil for a long period of time.
Gitanjali NandaKafle   +3 more
doaj   +1 more source

Dimers and amoebae [PDF]

open access: yesAnnals of Mathematics, 2006
We study random surfaces which arise as height functions of random perfect matchings (a.k.a. dimer configurations) on an weighted, bipartite, doubly periodic graph G embedded in the plane. We derive explicit formulas for the surface tension and local Gibbs measure probabilities of these models. The answers involve a certain plane algebraic curve, which
Kenyon, Richard   +2 more
openaire   +2 more sources

Evolutionary Dynamics of Giant Viruses and their Virophages [PDF]

open access: yes, 2013
Giant viruses contain large genomes, encode many proteins atypical for viruses, replicate in large viral factories, and tend to infect protists. The giant virus replication factories can in turn be infected by so called virophages, which are smaller ...
Anderson   +39 more
core   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

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