Results 21 to 30 of about 327,817 (261)

Dilution-induced lag violates a fundamental assumption of the dilution assay by modifying phytoplankton growth.

open access: yes, 2023
(a) Dunaliella tertiolecta dilution series in cultures without predators show negative slopes due to dilution-induced lagged growth. Emiliania huxelyi suspended in artificial media devoid of inhibitors or predators in (b) 200 μL microtiter plate and (c ...
Lee Karp-Boss (648174)   +13 more
core   +1 more source

Modelos matemáticos para o estudo do fluxo biológico do fósforo em suínos alimentados com dietas suplementadas com níveis crescentes de fitase Mathematical models for the study of the biological flow of phosphorus in pigs fed with diets containing increasing levels of phytase

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2009
A pesquisa foi realizada para avaliar o fluxo biológico do fósforo entre os compartimentos, fisiológicos ou anatômicos, de suínos mantidos em dietas que continham níveis crescentes de fitase, usando o P-32 como traçador.
J.A. Moreira   +3 more
doaj   +1 more source

Nanostructure and paramagnetic centres in diamond-like carbon: Effect of Ar dilution in PECVD process [PDF]

open access: yes, 2008
Diamond-like carbon (DLC) films were deposited utilising plasma enhanced chemical vapour deposition (PECVD) with acetylene precursor, diluted with 0 – 45% argon.
Reynolds, AJ   +13 more
core   +1 more source

Influence of Fermentation Water on Stable Isotopic D/H Ratios of Alcohol Obtained from Concentrated Grape Must

open access: yesMolecules, 2020
According to Organisation Internationale de la vigne et du vin (OIV) standards, when analysing the stable isotope ratio of deuterium to hydrogen D/H at the methyl (I) and methylene (II) site of ethanol from concentrated must, a dilution with tap water is
Matteo Perini   +4 more
doaj   +1 more source

Identifying the origins of local atmospheric deposition in the steel industry basin of Luxembourg using the chemical and isotopic composition of the lichen Xanthoria parietina [PDF]

open access: yes, 2008
Trace metal atmospheric contamination was assessed in one of the oldest European industrial sites of steel production situated in the southern part of the Grand-Duchy of Luxembourg.
Perrone, T.   +13 more
core   +1 more source

The isotopic composition of methane in the stratosphere : high-altitude balloon sample measurements [PDF]

open access: yes, 2011
The isotopic composition of stratospheric methane has been determined on a large suite of air samples from stratospheric balloon flights covering subtropical to polar latitudes and a time period of 16 yr.
Brass, Marc   +11 more
core   +2 more sources

Cinética de fósforo com modelos matemáticos em ovinos adultos Phosphorus kinetics using mathematical models for adult sheep

open access: yesPesquisa Agropecuária Brasileira, 2007
O objetivo deste trabalho foi avaliar, por meio de modelos matemáticos, o metabolismo de fósforo (P) em ovinos adultos suplementados com teores crescentes de farinha de ossos calcinados com 0, 1, 2 e 3 g de P por animal por dia.
Helder Louvandini   +1 more
doaj   +1 more source

Incorporation of Labeled Methionine as a Tissue Tracer in Broiler Chickens

open access: yesBrazilian Journal of Poultry Science
The objective of this study was to evaluate the process of L-methionine incorporation in the blood plasma, liver, breast muscle, and abdominal fat of 35- to 59-d-old broiler chickens using the carbon stable isotope (12C and 13C) technique for the ...
AC Stradiotti   +7 more
doaj   +1 more source

Dietary glutamine, glutamic acid and nucleotide supplementation accelerate carbon turnover (δ13C) on stomach of weaned piglets

open access: yesAnimal Nutrition, 2017
The use of stable isotope analysis as a tool for characterization of carbon turnover (δ13C) in piglet's tissues by tracing its feeding system has drawn attention.
Amanda D. Assoni   +4 more
doaj   +1 more source

Analysis of high burnup pressurized water reactor fuel using uranium, plutonium, neodymium, and cesium isotope correlations with burnup

open access: yesNuclear Engineering and Technology, 2015
The correlation of the isotopic composition of uranium, plutonium, neodymium, and cesium with the burnup for high burnup pressurized water reactor fuels irradiated in nuclear power reactors has been experimentally investigated.
Jung Suk Kim   +4 more
doaj   +1 more source

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