Results 21 to 30 of about 955,121 (302)

Rastreabilidade da farinha de carne e ossos bovinos em ovos de poedeiras comerciais pela técnica dos isótopos estáveis do carbono e nitrogênio Traceability of bovine meat and bones meal in eggs of commercial laying hens through carbon and nitrogen stable isotopes technique

Revista Brasileira de Zootecnia, 2011
Objetivou-se com este estudo rastrear a inclusão de farinha de carne e ossos bovinos em dietas para poedeiras comerciais, por meio da análise dos ovos e de suas frações (gema e albúmen), pela técnica dos isótopos estáveis do carbono e nitrogênio e ...
Juliana Célia Denadai, Carlos Ducatti, José Roberto Sartori, Antonio Celso Pezzato, Rosana Gottmann   +4 more
doaj   +1 more source

Variation of Oriental Oak (Quercus variabilis) Leaf δ13C across Temperate and Subtropical China: Spatial Patterns and Sensitivity to Precipitation [PDF]

, 2015
The concentration of the carbon-13 isotope (leaf δ13C) in leaves is negatively correlated with the mean annual precipitation (MAP) atlarge geographical scales.
Burgess, Paul J., Du, Baoming, Kang, Hongzhang, Liu, Chunjiang, Yin, Shan, Zhao, Xuan, Zhu, Yanhua   +6 more
core   +3 more sources

Rastreabilidade da farinha de carne e ossos bovinos em ovos de poedeiras alimentadas com ingredientes alternativos Traceability of bovine meat and bone meal in eggs from laying hens fed with alternative ingredients

Pesquisa Agropecuária Brasileira, 2009
O objetivo deste trabalho foi detectar traços de farinha de carne e ossos bovinos, em ovos de poedeiras alimentadas com dietas comerciais com inclusão de ingredientes vegetais alternativos e leveduras.
Juliana Célia Denadai, Carlos Ducatti, José Roberto Sartori, Antonio Celso Pezzato, Cleusa Móri, Rosana Gottmann, Mariela Akie Okino Mituo   +6 more
doaj   +1 more source

Stable isotopes (δ13C, δ15N) combined with conventional dietary approaches reveal plasticity in central-place foraging behaviour of little penguins (Eudyptula minor)

Frontiers in Ecology and Evolution, 2016
Marine top and meso predators like seabirds are limited by the need to breed on land but forage on limited or patchily distributed resources at sea. Constraints imposed by such central-place foraging behaviour change during breeding or even disappear ...
Andre eChiaradia, Fran eRamirez, Manuela G Forero, Keith A Hobson   +3 more
doaj   +1 more source

Stellar Evolution in the Early Universe [PDF]

, 2008
Massive stars played a key role in the early evolution of the Universe. They formed with the first halos and started the re-ionisation. It is therefore very important to understand their evolution. In this paper, we describe the strong impact of rotation
André Maeder, Chiappini, Chiappini, Chiappini, Cristina Chiappini, F.-K. Thielemann, Georges Meynet, Hirschi, Maeder, Maeder, Marco Pignatari, Marigo, Martayan, Meynet, Meynet, Meynet, Meynet, Raphael Hirschi, Spite, Spite, Spruit, Sylvia Ekström, Urs Frischknecht   +22 more
core   +1 more source

Análise isotópica (δ13C) e legalidade em suco e polpa de caju Isotope analysiS (δ13C) and legality in cashew juice and pulp

Brazilian Journal of Food Technology, 2011
Os objetivos deste trabalho foram utilizar o método de análise isotópica para quantificar o carbono do ciclo fotossintético C3 em suco reconstituído e polpa de caju comerciais e mensurar o limite de legalidade, baseado na legislação brasileira, para ...
Ricardo Figueira, Andressa Milene Parente Nogueira, Waldemar Gastoni Venturini Filho, Carlos Ducatti, Martha Maria Mischan   +4 more
doaj   +1 more source

Quantifying the roles of ocean circulation and biogeochemistry in governing ocean carbon-13 and atmospheric carbon dioxide at the last glacial maximum [PDF]

, 2009
We use a state-of-the-art ocean general circulation and biogeochemistry model to examine the impact of changes in ocean circulation and biogeochemistry in governing the change in ocean carbon-13 and atmospheric CO2 at the last glacial maximum (LGM).
Alkama, R., Bopp, L., Bouttes, N., Dutay, J.-C, Kageyama, M., Michel, E., Paillard, D., Roche, D.M.V.A.P., Tagliabue, A.   +8 more
core   +5 more sources

Establishing Winter Origins of Migrating Lesser Snow Geese Using Stable Isotopes

Avian Conservation and Ecology, 2012
Increases in Snow Goose (Chen caerulescens) populations and large-scale habitat changes in North America have contributed to the concentration of migratory waterfowl on fewer wetlands, reducing resource availability, and enhancing risks of disease ...
Viviane Hénaux, Larkin A. Powell, Mark P. Vrtiska, Keith A. Hobson   +3 more
doaj   +1 more source

Stable Isotope Analysis Reveals That Agricultural Habitat Provides an Important Dietary Component for Nonbreeding Dunlin

Avian Conservation and Ecology, 2005
Although shorebirds spending the winter in temperate areas frequently use estuarine and supratidal (upland) feeding habitats, the relative contribution of each habitat to individual diets has not been directly quantified.
Lesley Joan Evans Ogden, Keith A. Hobson, David B. Lank, Shabtai Bittman   +3 more
doaj   +1 more source

One-second coherence for a single electron spin coupled to a multi-qubit nuclear-spin environment

, 2018
Single electron spins coupled to multiple nuclear spins provide promising multi-qubit registers for quantum sensing and quantum networks. The obtainable level of control is determined by how well the electron spin can be selectively coupled to, and ...
Abobeih, Mohamed H., Bakker, Michiel A., Cramer, Julia, Kalb, Norbert, Markham, Matthew, Taminiau, Tim H., Twitchen, Daniel J.   +6 more
core   +2 more sources