Results 21 to 30 of about 11,895,768 (324)

Host adaption to the bacteriophage carrier state of Campylobacter jejuni.

open access: yesRes Microbiol, 2015
The carrier state of the foodborne pathogen Campylobacter jejuni represents an alternative life cycle whereby virulent bacteriophages can persist in association with host bacteria without commitment to lysogeny.
Brathwaite KJ   +3 more
europepmc   +2 more sources

Dominant role of many-body effects on the carrier distribution function of quantum dot lasers [PDF]

open access: yes, 2016
The effects of free-carrier-induced shift and broadening on the carrier distribution function are studied considering different extreme cases for carrier statistics (Fermi–Dirac and random carrier distributions) as well as quantum dot (QD) ensemble ...
Childs, David   +3 more
core   +1 more source

Nasal secretions of Neisseria lactamica carriers have an inhibitory effect on Neisseria meningitidis attachment to human oroepithelial cells

open access: yesMemorias do Instituto Oswaldo Cruz, 1986
Nasal secretions of volunteers colonized by N. lactamica impaired the attachment of N. lactamica and of meningococci of groups A and B to oroepithelial cells.
João Ramos Costa Andrade   +2 more
doaj   +1 more source

Superfluid density and carrier concentration across a superconducting dome: the case of SrTi$_{1-x}$Nb$_{x}$O$_{3}$ [PDF]

open access: yes, 2017
We present a study of the lower critical field, \hc1, of \STO as a function of carrier concentration with the aim of quantifying the superfluid density. At low carrier concentration (i.e.
Behnia, Kamran   +5 more
core   +1 more source

Towards automated design of quantum cascade lasers [PDF]

open access: yes, 2005
We present an advanced technique for the design and optimization of GaAs/AlGaAs quantum cascade laser structures. It is based on the implementation of the simulated annealing algorithm with the purpose of determining a set of design parameters that ...
Aleksandra Mirčetić   +8 more
core   +1 more source

Efficient calculation of carrier scattering rates from first principles [PDF]

open access: yesNature Communications, 2020
The electronic transport behaviour of materials determines their suitability for technological applications. We develop a computationally efficient method for calculating carrier scattering rates of solid-state semiconductors and insulators from first ...
A. Ganose   +5 more
semanticscholar   +1 more source

Are serum quantitative hepatitis b surface antigen levels, liver histopathology and viral loads related in chronic hepatitis b-infected patients?

open access: yesThe Saudi Journal of Gastroenterology, 2016
Background/Aims: Fluctuations in hepatitis B virus (HBV) DNA and alanine transaminase (ALT) levels complicate assessment of the phases of chronic hepatitis B (CHB) infection and correct identification of the inactive HBV carrier state.
Ayhan Balkan   +5 more
doaj   +1 more source

Model-independent determination of the carrier multiplication time constant in CdSe nanocrystals [PDF]

open access: yes, 2009
The experimental determination of the carrier multiplication (CM) time constant is complicated by the fact that this process occurs within the initial few hundreds of femtoseconds after excitation and, in transient-absorption experiments, cannot be ...
Beard   +33 more
core   +2 more sources

Secure Quantum Secret Sharing Based on Reusable GHZ States as Secure Carriers [PDF]

open access: yes, 2006
We show a potential eavesdropper can eavesdrop whole secret information when the legitimate users use secure carrier to encode and decode classical information repeatedly in the protocol [proposed in Bagherinezhad S and Karimipour V 2003 Phys. Rev.
Cheng Z H   +4 more
core   +2 more sources

Quantitative characteristics of the foot‐and‐mouth disease carrier state under natural conditions in India

open access: yesTransboundary and Emerging Diseases, 2018
The goal of this study was to characterize the properties and duration of the foot-and-mouth disease (FMD) carrier state and associated serological responses subsequent to vaccination and naturally occurring infection at two farms in northern India ...
S. Hayer   +17 more
semanticscholar   +1 more source

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