Results 1 to 10 of about 383,237 (301)

Geochemical Composition of Surface Sediments in the Bashang Area, North China and its Environmental Significance

open access: yesFrontiers in Earth Science, 2022
The geochemical characteristics of sediments are important for reconstructing paleoclimatic and paleoenvironmental conditions in the Asian summer monsoon marginal area.
Linjing Liu   +13 more
doaj   +1 more source

Texture-based brain networks for characterization of healthy subjects from MRI

open access: yesScientific Reports, 2023
Brain networks have been widely used to study the relationships between brain regions based on their dynamics using, e.g. fMRI or EEG, and to characterize their real physical connections using DTI.
Rafael Vinícius da Silveira   +2 more
doaj   +1 more source

Disentangling the Evidence of Milankovitch Forcing From Tree-Ring and Sedimentary Records

open access: yesFrontiers in Earth Science, 2022
Tree-ring records constitute excellent high-resolution data and provide valuable information for climate science and paleoclimatology. Tree-ring reconstructions of past temperature variations agree to show evidence for annual-to-centennial anomalies in ...
Samuli Helama   +13 more
doaj   +1 more source

Health risk assessment of heavy metals in soils and crops in a mining area (Au-Ag-Cu-trona-oil et al.) of the Nanyang Basin, Henan Province, China

open access: yesChina Geology, 2023
Heavy metal distribution in mining areas has always been a hot research topic due to the special environment of these areas. This study aims to explore the impact of heavy metal pollution on soils and crops in the study area, ensure the safety of local ...
Qiu-yao Dong   +7 more
doaj   +1 more source

RETRACTED: EEG Signal Connectivity for Characterizing Interictal Activity in Patients With Mesial Temporal Lobe Epilepsy

open access: yesFrontiers in Neurology, 2021
Over the last decade, several methods for analysis of epileptiform signals in electroencephalography (EEG) have been proposed. These methods mainly use EEG signal features in either the time or the frequency domain to separate regular, interictal, and ...
Leonardo R. da Costa   +6 more
doaj   +1 more source

Hydrological Evolution of a Lake Recharged by Groundwater in the Badain Jaran Desert Over the Past 140 years

open access: yesFrontiers in Earth Science, 2021
Understanding the evolution of lakes in arid areas is very important for water resource management. Previous studies have mainly focused on lakes with runoff recharge, while the evolution of groundwater recharge lakes in hyper-arid areas is still less ...
Gaolei Jiang   +12 more
doaj   +1 more source

Ecosystem health risk assessment of lakes in the Inner Mongolian Plateau based on the coupled AHP-SOM-CGT model

open access: yesEcological Indicators, 2023
The ecosystem health risk assessment of lake basins can provide a crucial foundation and support for the sustainable development of ecosystems in the arid regions of northern China.
Lefan Zhao   +5 more
doaj   +1 more source

New Isotopic Data on the Diet of the Saka Period Population from Central Kazakhstan

open access: yesПоволжская археология, 2020
This paper presents the results of stable isotope analysis of the Saka period population of Central Kazakhstan. The analysed materials originate from 37 sites of the Tasmola Culture which is presently dated to the 8th – 5th c. BC.
Beisenov Arman Z.   +4 more
doaj   +1 more source

New Radiocarbon Dates from the Saka Time Settlements of Central Kazakhstan

open access: yesПоволжская археология, 2022
The features of the settlements of the Saka time in Central Kazakhstan are studied on the basis of materials from more than 70 objects that have been discovered to date.
Beisenov Arman Z., Liu Yan, Cao Huihui
doaj   +1 more source

Preliminary Evidence about the Colonisation Process of Kyphosus Species (Perciformes: Kyphosidae) in the Subtropical–Temperate Northeast Atlantic Ocean and Mediterranean Sea

open access: yesJournal of Marine Science and Engineering, 2022
A review of the non-native Kyphosus species historically recorded in Galician waters (north-western Spain) based on morphological and molecular characteristics is carried out.
Rafael Bañón, Alejandro de Carlos
doaj   +1 more source

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