Results 41 to 50 of about 10,208 (189)

Occurrence, Serotypes and Virulence Characteristics of Shiga-Toxin-Producing Escherichia coli Isolates from Goats on Communal Rangeland in South Africa

open access: yesToxins, 2022
Shiga-toxin-producing Escherichia coli is a foodborne pathogen commonly associated with human disease characterized by mild or bloody diarrhea hemorrhagic colitis and hemolytic uremic syndrome.
Mogaugedi N. Malahlela   +7 more
doaj   +1 more source

The u'g'r'i'z' Standard Star Network

open access: yes, 2002
We present the 158 standard stars that define the u'g'r'i'z' photometric system. These stars form the basis for the photometric calibration of the Sloan Digital Sky Survey (SDSS).
Alan Uomoto   +31 more
core   +1 more source

Local-field effects in silicon nanoclusters [PDF]

open access: yes, 2011
The effect of the local fields on the absorption spectra of silicon nanoclusters (NCs), freestanding or embedded in SiO2, is investigated in the DFT-RPA framework for different size and amorphization of the samples.
A. L. Fetter   +4 more
core   +2 more sources

Balanced Expression of the Diiron Oxygenase BioE Is Essential for Biotin Homeostasis in Elizabethkingia meningoseptica

open access: yesAdvanced Science, Volume 13, Issue 10, 18 February 2026.
BioE is a new diiron oxygenase that catalyzes the conversion of long‐chain acyl groups into pimeloyl thioester, initiating biotin synthesis. The overexpression of EmBioE disrupts lipid metabolic homeostasis, requiring repressor BioL to maintain a balance between long‐chain fatty acids and biotin synthesis.
Meng Zhang   +9 more
wiley   +1 more source

The effect of catecholamine infusions on myocardial blood flow, metabolic heat production and on general haemodynamics, before and after alprenolol (H56/28), in anaesthetized cats [PDF]

open access: yesBritish Journal of Pharmacology, 1970
Summary . In cats anaesthetized with pentobarbitone sodium, infusions of adrenaline, noradrenaline (0·5 μg/kg per min) and isoprenaline (0·25 μg/kg per min) increased myocardial blood flow, myocardial heat production, left ventricular systolic and end‐diastolic pressures, left ventricular +ve and –ve dp/dt max, and calculated cardiac output, effort and
J R, Parratt, R M, Wadsworth
openaire   +2 more sources

The Role of the Exchange-Correlation Potential in ab initio Electron Transport Calculations

open access: yes, 2009
The effect of the exchange-correlation potential in ab initio electron transport calculations is investigated by constructing optimized effective potentials (OEP) using different energy functionals or the electron density from second-order perturbation ...
Harold U. Baranger   +3 more
core   +1 more source

Central Limit Theorems for the Brownian motion on large unitary groups [PDF]

open access: yes, 2009
In this paper, we are concerned with the large N limit of linear combinations of the entries of a Brownian motion on the group of N by N unitary matrices. We prove that the process of such a linear combination converges to a Gaussian one.
De France   +3 more
core   +9 more sources

Combining ability and heterosis in partial resistance to gray leaf spot in elite maize (Zea mays L.) genotypes

open access: yesCrop Science, Volume 66, Issue 1, January/February 2026.
Abstract Six sets of 48 maize (Zea mays L.) inbred lines, and their 96 single crosses generated using the North Carolina Mating Design II system, were evaluated for resistance to gray leaf spot (GLS). The aim of the study was to assess the implications of combining ability, heterotic effects, and potence ratio in breeding for GLS resistance in maize ...
James O. Nyanapah   +4 more
wiley   +1 more source

Modulation of primary immune response by different vaccine adjuvants

open access: yesFrontiers in Immunology, 2016
Adjuvants contribute to enhancing and shaping the vaccine immune response through different modes of action. Since the primary immune response can influence the overall quality of the response generated, here we investigate early biomarkers of ...
Annalisa Ciabattini   +6 more
doaj   +1 more source

Mechanism of the Aerobic Oxidation of Alcohols by Palladium Complexes of N-Heterocyclic Carbenes [PDF]

open access: yes, 2006
Quantum mechanics (B3LYP density functional theory) combined with solvation (Poisson−Boltzmann polarizable continuum solvent model) was used to investigate six mechanisms for the aerobic oxidation of alcohols catalyzed by (NHC)Pd(carboxylate)_2(H_2O ...
Goddard, William A., III   +1 more
core   +1 more source

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