Results 31 to 40 of about 2,400,643 (255)

Stable isotope dilution techniques for assessing vitamin A status and bioefficacy of provitamin A carotenoids in humans. [PDF]

, 2005
Vitamin A deficiency is a major global public health problem. Among the variety of techniques that are available for assessing human vitamin A status, evaluating the provitamin A nutritional values of foodstuffs and estimating human vitamin A ...
Judy D Ribaya-Mercado, Emorn Wasantwisut, Marjorie Haskell, Sherry Tanumihardjo, Harold C Furr, Wasantwisut, Emorn, Tang, Guangwen, Penelope Nestel, Sam Newton, Guangwen Tang, Haskell, Marjorie, Ribaya-Mercado, Judy D, Najat Mokhtar, Furr, Harold C, Nestel, Penelope, Newton, Sam, Tanumihardjo, Sherry, Green, Michael H, Michael H Green, Mokhtar, Najat   +19 more
core   +1 more source

δ13C and δ18O Stable Isotope Analysis Applied to Detect Technological Variations and Weathering Processes of Ancient Lime and Hydraulic Mortars

Geosciences, 2018
Samples of mortars were collected from lime and hydraulic mortars affected by environmental degradation. A total of 63 samples were obtained from Hellenistic, Late Roman and Byzantine historic constructions located at Kavala, Drama and Makrygialos in ...
Elissavet Dotsika, Dafni Kyropoulou, Vassilios Christaras, Georgios Diamantopoulos   +3 more
doaj   +1 more source

Carbon stable isotope analysis of cereal remains as a way to reconstruct water availability: preliminary results [PDF]

, 2011
Reconstructing past water availability, both as rainfall and irrigation, is important to answer questions about the way society reacts to climate and its changes and the role of irrigation in the development of social complexity.
Jenkins, Emma L., Jenkins, Emma, Emma Jenkins, Pascal Flohr, Muldner, Gundula, Muldner, G., Flohr, Pascal, Flohr, P., Gundula Müldner   +8 more
core   +1 more source

Trophic structure in a seabird host-parasite food web: insights from stable isotope analyses [PDF]

, 2010
Ecological studies on food webs rarely include parasites, partly due to the complexity and dimensionality of host-parasite interaction networks. Multiple co-occurring parasites can show different feeding strategies and thus lead to complex and cryptic ...
Gómez-Díaz Elena, Gómez Díaz, Elena, González-Solís, Jacob, González-Solís Jacob   +3 more
core   +1 more source

Determination of Isotopic Abundance of 15N-Labeled Amino Acids in Tea

Journal of Isotopes, 2020
A method for determination alanine, serine, glutamic acid, asparagine, theanine, glutamine in tea leaves by MSTFA derivatization has been established. And six amino acids were detected successfully.
HOU Jie;ZHANG Pengshuai;HOU Jinghua;LEI Wen;DU Xiaoning
doaj   +1 more source

A ¹⁵N stable isotope semen label to detect mating in the malaria mosquito Anopheles arabiensis Patton [PDF]

, 2008
In previous studies it was determined that the stable isotope 13-carbon can be used as a semen label to detect mating events in the malaria mosquito Anopheles arabiensis. In this paper we describe the use of an additional stable isotope, 15-nitrogen (15N)
Hood Rebecca C, Knols, B.G.J., Gludovacz Doris, Mayr Leo, Gludovacz, D., Knols Bart GJ, Helinski Michelle EH, Helinski, M., Hood-Nowotny, R.C., Mayr, L.   +9 more
core   +1 more source

Establishment of a Greek Food Database for Palaeodiet Reconstruction: Case Study of Human and Fauna Remains from Neolithic to Late Bronze Age from Greece

Geosciences, 2019
We review the stable isotopic data of recovered Greek bones from the Early Neolithic to the Late Bronze period in order to examine dietary changes over time. As an isotopic baseline we use the published fauna data of the periods.
Elissavet Dotsika, Georgios Diamantopoulos, Spyridon Lykoudis, Sofia Gougoura, Elena Kranioti, Petros Karalis, Dimitra Michael, Eleni Samartzidou, Emmanouil Palaigeorgiou   +8 more
doaj   +1 more source

Chemical Analysis Suggesting Origin of Raw Materials and Possible Recycling of Late Antique Roman Glass from Vasileos Irakleiou Street 45, Thessaloniki in Northern Greece

Applied Sciences, 2022
During antiquity, it is known that glass was produced in specialized primary workshops in Levant and Egypt, and this glass was melted and formed into objects in secondary workshops, and distributed in most cities and towns of the Roman Empire.
Petros Karalis, Elissavet Dotsika, Athanasios Godelitsas, Anastasios Antonaras, Anastasia Elektra Poutouki, Maria Tassi   +5 more
doaj   +1 more source

rdbouche/Non-Human-Primate-Stable-Isotope-Data: Rhesus Macaque (Macaca mulatta) iron (Fe) and copper (Cu) stable isotope data & code

, 2020
This is the stable isotope data and R code from the paper, "Iron (Fe) and copper (Cu) stable isotope evidence in mature rhesus macaques (Macaca mulatta) suggests age-related ...
Shauhin E. Alavi, Renee D. Boucher, Hylke N. de Jong, Linda V. Godfrey, Erin R. Vogel   +4 more
core   +1 more source

Structure and flow of carbon and nitrogen to the western Irish Sea Nephrops norvegicus fishery: a stable isotope approach. [PDF]

, 2008
PhDStable isotope analysis was used to describe the structure and flow of organic matter (carbon and nitrogen) from primary production in the water column to the benthos, and into secondary production that supports a fishery for the lobster Nephrops ...
Hill, Jacqueline M
core   +2 more sources