Results 21 to 30 of about 69,048 (265)

New data on lithology, organic geochemistry and accumulation conditions of the Bazhenov formation in Western Siberia

Georesursy, 2019
This paper presents data on lithological composition, distribution, reservoir properties, geochemistry of organic matter and genesis of carbonate rocks of the Bazhenov formation within the central part of Western Siberia (the region of the Khantei ...
V.G. Eder, E.A. Kostyreva, A.Yu. Yurchenko, N.S. Balushkina, I.S. Sotnich, E.V. Kozlova, A.G. Zamiraylova, N.I. Savchenko   +7 more
doaj   +1 more source

Vertical and spatial evaluation of the groundwater chemistry in the Central Nile Delta Quaternary aquifer to assess the effects of human activities and seawater intrusion

Frontiers in Environmental Science, 2022
Contaminants can be found in the groundwater through natural processes, such as seawater intrusion, or due to human activities that can adversely affect the quantity, quality, and distribution of the groundwater. In order to assess the influence of human
Zenhom E. Salem, Abdelaziz ElNahrawy, Abdullah M. Attiah, Joshua N. Edokpayi   +3 more
doaj   +1 more source

Isotope-Selective Breath Analysis

Conference on Lasers and Electro-Optics, 2017
Isotope-selective breath analysis offers a non-invasive, fast and reliable alternative to traditional methods in numerous clinical applications. Especially stable isotopologues of carbon dioxide have been applied to tens of different studies.
Lehto M., Metsala M., Lehto M., Metsala M., Manninen Albert, Richmond Craig, Hietala Eero, Vasama Hannu, Suopajärvi Pekka, Aikio Rami, Kääriäinen Teemu   +10 more
openaire   +2 more sources

A Review of Progress in Microbeam Lu-Hf Isotopic Analysis on Minerals

Yankuang ceshi, 2022
BACKGROUND Mircobeam Lu-Hf isotopic analysis on minerals provides an important means to understand the microscopic process of magmatic activity and metamorphic reaction and to trace provenance of sediment, which greatly promotes the development of ...
WANG Hao, YANG Yueheng, YANG Jinhui
doaj   +1 more source

The effects of charring on morphology and stable carbon and nitrogen isotope values of common and foxtail millet grains

Frontiers in Environmental Archaeology
Stable isotopes are a core method for assessing crop growing conditions in different climatic and soil environments and, thereby, for understanding past agricultural practices. However, isotopic values in plants are altered depending on distinct forms of
Andrés Teira-Brión, Elizabeth Stroud, Michael Charles, Amy Bogaard   +3 more
doaj   +1 more source

Isotopic composition of serum zinc and copper in healthy children and children with autism spectrum disorder in North America

Frontiers in Molecular Neuroscience, 2023
To better understand zinc and copper regulation and their involvement in various biochemical pathways as it relates to autism spectrum disorder (ASD), isotopic composition of serum zinc and copper were evaluated in both healthy children and children with
Kerri Miller, Patrick L. Day, Supriya Behl, Lindsay Stromback, Adriana Delgado, Paul J. Jannetto, Michael E. Wieser, Sunil Q. Mehta, Sunil Q. Mehta, Mukesh K. Pandey   +9 more
doaj   +1 more source

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

Isotopic analysis

, 2023
We recorded the detailed process of our supplementary isotopic experiment in Chinese.
openaire   +2 more sources

Dendrochronology and Isotope Chronology of Juglans neotropica and Its Response to El Niño-Related Rainfall Events in Tropical Highlands of Piura, Northern Peru

Plants
Tropical trees represent an important potential archive of climate and ecological information, but their dendrochronology based on conventional techniques has been challenging.
Tone Marie Ektvedt, Michael N. Evans, Donald A. Falk, Paul R. Sheppard   +3 more
doaj   +1 more source

Artemisia: Active and Interactive Monitoring of the Forests in Protected Areas Aimed at the Sustainable Management of Nature

EQA, 2014
To pursue the usage of forests resources in the processes of economic and social development it is determining that the principles of natural heritage protection join in a concept of progress, based on evolution and technological innovation; the ...
Clelia Cirillo
doaj   +1 more source