Results 11 to 20 of about 955,121 (302)
Hominin palaeoecology in Late Pliocene Malawi : first insights from isotopes (13C, 18O) in mammal teeth [PDF]
, 2011 Carbon-13 and oxygen-18 abundances were measured in large mammal skeletal remains (tooth enamel, dentine and bone) from the Chiwondo Beds in Malawi, which were dated by biostratigraphic correlation to ca. 2.5 million years ago.
Bocherens, Herv +3 more
core +2 more sources
Beech wood treated with polyglycerol succinate: a new effective method for its protection and stabilization [PDF]
, 2020 This paper deals with an original and non-biocidal chemical treatment consisting of a vacuum/pressure impregnation step of beech wood with a water-borne mixture made from heat-activated condensation of succinic anhydride (SA) and glycerol (G).
Fredon, Emmanuel +4 more
core +1 more source
Pesquisa Agropecuária Brasileira, 2007 O objetivo deste estudo foi avaliar a influência da glutamina no turnover do carbono do tecido adiposo de leitões. Quarenta leitões foram desmamados aos 21 dias e distribuídos, aleatoriamente, em dois tratamentos: T1, dieta de plantas C3, sem ...
Fabiana Ribeiro Caldara +5 more
doaj +1 more source
Isotopic Niche Segregation among Darwin’s Finches on Santa Cruz Island, Galápagos
Diversity, 2021 Darwin’s finches are a classic example of adaptive radiation involving differential use of dietary resources among sympatric species. Here, we apply stable isotope (δ13C, δ15N, and δ2H) analyses of feathers to examine ecological segregation among eight ...
Mariana Villegas +4 more
doaj +1 more source
Carbon-13 n.m.r. investigation on the nitrogen methylation of the mono- and diazanaphthalenes [PDF]
, 1977 The 13C n.m.r. spectra of the N-methylated mono- and diazanaphthalenes have been recorded and analysed. It has been shown that N-methylation as well as N-protonation in cinnoline occur predominantly at the -nitrogen atom.
Ham, Dirk M.W. van den +2 more
core +2 more sources
Rastreability of bovine meat and bone meal using the stable isotope technique in egg production
Scientia Agricola, 2021 The present study aimed to verify whether the inclusion of other ingredients in the diet of laying hens could interfere with the traceability of bovine meat and bone meal (BMBM) in eggs through stable carbon and nitrogen isotope analysis. Two hundred and
Juliana Célia Denadai +8 more
doaj +1 more source
Stable isotopic labeling in proteomics [PDF]
, 2008 Labeling of proteins and peptides with stable heavy isotopes (deuterium, carbon-13, nitrogen-15, and oxygen-18) is widely used in quantitative proteomics.
Beynon +69 more
core +2 more sources
Ciência e Agrotecnologia, 2010 Neste trabalho, objetivou-se analisar isotopicamente méis comercializados nas regiões Sul e Sudeste do Brasil, para a detecção de fraude. Foram colhidas amostras comerciais com registro no Serviço de Inspeção Federal, Estadual ou Municipal.
Cibele Regina de Souza-Kruliski +4 more
doaj +1 more source
Traceability of bovine meat and bone meal in poultry by stable isotope analysis
Brazilian Journal of Poultry Science, 2006 Bovine meat and bone meal (MBM) was widely used in animal diets until outbreaks of Bovine Spongiform Encefalopathy (BSE) occurred in some countries.
AS Carrijo +5 more
doaj +1 more source
Plants, 2023 Red grapes are rich in phytochemicals such as phenolics and flavonoids, which are strongly correlated with their antioxidant activity. Thus, grapes as-harvested and grape extracts, especially those obtained from their seeds and pulp, have been reported ...
Cristina Mihaela Nicolescu +8 more
doaj +1 more source