Results 31 to 40 of about 375,375 (306)

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

Synthesis of Isotope Labeled Protocatechuic Acid-(13COOH)

Journal of Isotopes, 2020
A novel synthesis method of protocatechuic acid-(13COOH) was designed. 3,4-dimethoxy bromobenzene as raw material, Grignard reagent was prepared by Grignard reaction, then passed through the 13C labeled 13CO2 gas, the intermediate 3,4-dimethoxy benzoic ...
XU Jianfei;LIU Zhanfeng;LU Weijing;LEI Wen;HOU Jie;DU Xiaoning
doaj   +1 more source

Microbial carbon recycling: an underestimated process controlling soil carbon dynamics – Part 2: A C₃-C₄ vegetation change field labelling experiment [PDF]

Biogeosciences, 2015
The mean residence times (MRT) of different compound classes of soil organic matter (SOM) do not match their inherent recalcitrance to decomposition. One reason for this is the stabilization within the soil matrix, but recycling, i.e.
A. Basler, M. Dippold, M. Helfrich, J. Dyckmans   +3 more
doaj   +1 more source

Highlighting the effects of co‐eluting interferences on compound specific stable isotope analysis of polycyclic aromatic hydrocarbons using comprehensive two‐dimensional gas chromatography [PDF]

, 2014
Accuracy is the most important issue when carrying out compound specific stable isotope analysis of polycyclic aromatic hydrocarbons extracted from complex samples.
Blessing, Buczyńska, Elsner, Gauchotte-Lindsay, Graham, Liu, Mansuy, Mazeas, McGregor, McGregor, McRae, Meier-Augenstein, Pashin, Philp, Philp, Saber, Steinbach   +16 more
core   +1 more source

Influence of Climate on Stable Nitrogen Isotopic Values of Contemporary Greek Samples: Implications for Isotopic Studies of Human Remains from Neolithic to Late Bronze Age Greece

Geosciences, 2019
In this paper, we study δ15N enrichment as an indicator not only of marine protein diet, but also of climate change. The slope of the variation of δ15N with precipitation was calculated equal to 0.38/100 mm of precipitation for Greek plants, 0 ...
Elissavet Dotsika, Georgios Diamantopoulos   +1 more
doaj   +1 more source

Eclipse Ice Core Accumulation and Stable Isotope Variability as an Indicator of North Pacific Climate [PDF]

, 2012
The high accumulation rate and negligible amount of melt at Eclipse Icefield (3017 m) in the Saint Elias Range of Yukon, Canada, allows for the preservation of a high-resolution isotopic and glaciochemical records valuable for reconstruction of climatic ...
Kelsey, Eric P, Kreutz, K, Wake, Cameron P, Yalcin, Kaplan   +3 more
core   +2 more sources

An evaluation of migration fidelity of Ruby-throated Hummingbirds inferred from stable isotope methods [PDF]

PeerJ
Knowledge of spatial connectivity between breeding and non-breeding locations of migratory birds and their breeding site fidelity are important for avian conservation.
Geoff Koehler, Kevin J. Kardynal, Ron E. Jensen, Keith A. Hobson   +3 more
doaj   +2 more sources

Food fit for a Khan: Stable isotope analysis of the elite Mongol Empire cemetery at Tavan Tolgoi, Mongolia [PDF]

, 2014
The creation and expansion of the Mongol Empire during the thirteenth century A.D. brought with it many changes, both for the conquered peoples and for the conquerors themselves.
Fenner, Jack, Khatanbaatar, Dorjpurev, Tumen, Dashtseveg   +2 more
core   +2 more sources

Isotopic Traceability (¹³C and ¹⁸O) of Greek Olive Oil

Molecules, 2020
In recent years, isotopic analysis has been proven a valuable tool for the determination of the origin of various materials. In this article, we studied the 18O and 13C isotopic values of 210 olive oil samples that were originated from different regions ...
Petros Karalis, Anastasia Elektra Poutouki, Theodora Nikou, Maria Halabalaki, Charalampos Proestos, Effie Tsakalidou, Sofia Gougoura, George Diamantopoulos, Maria Tassi, Elissavet Dotsika   +9 more
doaj   +1 more source

Analytical modelling of stable isotope fractionation of volatile organic compounds in the unsaturated zone [PDF]

, 2011
Analytical models were developed that simulate stable isotope ratios of volatile organic compounds (VOCs) near a point source contamination in the unsaturated zone. The models describe diffusive transport of VOCs, biodegradation and source ageing.
Abriola, Baehr, Bouchard, Bouchard, Bouchard, Bouchard, Broholm, Cerling, Christophersen, Clark, Conant, Craig, Daniel Bouchard, Daniel Hunkeler, Davis, Davis, Elsner, Fabien Cornaton, Falta, Franzmann, Gaganis, Grathwohl, Harrington, Hers, Hoff, Hohener, Hohener, Hunkeler, Hunkeler, Jin, Jost, Jury, Karapanagioti, Kiss, Kuder, Lahvis, Meckenstock, Millington, Moldrup, Ostendorf, Parker, Pasteris, Patrick Höhener, Schmidt, Schwarzenbach, Schüth, Sherwood Lollar, Slater, Smith, Van de Steene, Wang, Werner, Werner   +52 more
core   +3 more sources