Results 71 to 80 of about 8,119,390 (363)

Pseudomonas aeruginosa is capable of natural transformation in biofilms

open access: yesbioRxiv, 2019
Natural transformation is a mechanism that enables competent bacteria to acquire naked, exogenous DNA from the environment. It is a key process that facilitates the dissemination of antibiotic resistance and virulence determinants throughout bacterial ...
L. Nolan   +6 more
semanticscholar   +1 more source

Combining transient dynamics and logistic‐asymptotic growth to study the recovery of two seabird populations after rat eradication

open access: yesPopulation Ecology, EarlyView.
This study examines the demographic dynamics of two seabird populations on Tromelin Island, 15 years after the eradication of brown rats. The results indicate that these populations are in good health and are expected to continue growing until breeding sites are saturated in about a century.
Merlène Saunier   +6 more
wiley   +1 more source

Wigner-Souriau translations and Lorentz symmetry of chiral fermions [PDF]

open access: yes, 2015
Chiral fermions can be embedded into Souriau's massless spinning particle model by "enslaving" the spin, viewed as a gauge constraint. The latter is not invariant under Lorentz boosts; spin enslavement can be restored, however, by a subsequent Wigner ...
Duval, C.   +3 more
core   +5 more sources

Genomics Approaches to Deciphering Natural Transformation in Cyanobacteria

open access: yesFrontiers in Microbiology, 2019
Natural transformation is the process by which bacteria actively take up and maintain extracellular DNA. This naturally occurring process is widely used as a genetic modification method in bacterial species, and is crucial for the efficient genetic ...
Kristen E. Wendt, H. Pakrasi
semanticscholar   +1 more source

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Some categorical aspects of the inverse limits in ditopological context

open access: yesApplied General Topology, 2018
This paper considers some various categorical aspects of the inverse systems (projective spectrums) and inverse limits described in the category ifPDitop, whose objects are ditopological plain texture spaces and morphisms are bicontinuous point functions
Filiz Yildiz
doaj   +1 more source

Characterizing the Chemical Contaminants Diversity and Toxic Potential of Untreated Wastewater From a Drug Rehabilitation Hospital: Understanding Impact on Downstream Environment

open access: yesFrontiers in Environmental Science, 2022
This study characterizes a total of 21 wastewater samples collected from Al Amal hospital, and aims to determine if untreated hospital wastewater may impose a potentially detrimental impact on the downstream municipal biological wastewater treatment ...
Fras Baasher   +8 more
doaj   +1 more source

Generalized Darboux transformations for the KP equation with self-consistent sources

open access: yes, 2004
The KP equation with self-consistent sources (KPESCS) is treated in the framework of the constrained KP equation. This offers a natural way to obtain the Lax representation for the KPESCS.
Ablowitz M J   +22 more
core   +2 more sources

Multiplex Genome Editing by Natural Transformation (MuGENT) for Synthetic Biology in Vibrio natriegens.

open access: yesACS Synthetic Biology, 2017
Vibrio natriegens has recently emerged as an alternative to Escherichia coli for molecular biology and biotechnology, but low-efficiency genetic tools hamper its development. Here, we uncover how to induce natural competence in V. natriegens and describe
Triana N. Dalia   +5 more
semanticscholar   +1 more source

Network topology drives population temporal variability in experimental habitat networks

open access: yesPopulation Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu   +3 more
wiley   +1 more source

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