Results 21 to 30 of about 6,103 (222)

Advances in the hydraulic interpretation of water wells using flowmeter logs [PDF]

open access: yesHydrology and Earth System Sciences, 2022
This paper reports on the methodology developed for a new hydraulic interpretation of flowmeter logs, allowing a better characterization of continental hydrological basins.
J. Díaz-Curiel   +4 more
doaj   +1 more source

Correlation of Boreholes through Well Logs: Application to the Western Sector of Madrid

open access: yesSensors, 2023
This study correlates the results obtained from the resistivity and spontaneous potential well logs in six boreholes for water extraction, located in the multilayer siliciclastic basin in the Madrid region, in the center of the Iberian Peninsula.
Jesús Díaz-Curiel   +4 more
doaj   +1 more source

What Is the Acheulean? [PDF]

open access: yesEvol Anthropol
ABSTRACT The Acheulean represents the longest cultural period known to human history, lasting globally for more than 1.75 million years. It may have emerged as early as 1.95 Ma in Africa, spreading throughout much of the continent and then into Eurasia and lasting up to 350–200 ka in western Europe and South Asia, and even later in eastern Asia ...
Moncel MH   +20 more
europepmc   +2 more sources

Nitrogen Deposition Effects on Soil Properties, Microbial Abundance, and Litter Decomposition Across Three Shrublands Ecosystems From the Mediterranean Basin

open access: yesFrontiers in Environmental Science, 2021
Atmospheric nitrogen (N) inputs in the Mediterranean Basin are projected to increase due to fossil fuel combustion, fertilizer use, and the exacerbation of agricultural production processes.
Mauro Lo Cascio   +18 more
doaj   +1 more source

The Lake Chad transboundary aquifer. Estimation of groundwater fluxes through international borders from regional numerical modeling

open access: yesJournal of Hydrology: Regional Studies, 2021
Study Region: Africa. The Lake Chad transboundary aquifer Study Focus: To understand transboundary groundwater hydrodynamics and estimate quantitative groundwater fluxes values between aquifer-sharing countries.
Guillermo Vaquero   +6 more
doaj   +1 more source

Morphological characterization of 23 Malus domestica Borkh cultivars from central Spain

open access: yesGenetic Resources, 2022
The purpose of this work was to morphologically characterize an apple tree collection composed of 67 individuals from 41 accessions belonging to 23 old Spanish apple cultivars (Malus domestica Borkh) alongside 9 reference cultivars.
Alberto-Rafael Arnal   +2 more
doaj   +1 more source

RECLAMO: Unlocking the potential of wastewater reuse for agricultural irrigation in Spain [PDF]

open access: yesResearch Ideas and Outcomes, 2021
Increasing water scarcity is encouraging the use of unconventional water resources. In recent years, the European Union has launched numerous initiatives to promote and facilitate water reuse for agricultural irrigation. Today, the use of reclaimed water
Irene Blanco-Gutiérrez   +9 more
doaj   +3 more sources

Characteristics of a Mg-palygorskite in Miocene rocks, Madrid Basin (Spain) [PDF]

open access: yesClays and Clay Minerals, 2004
AbstractPalygorskite in Miocene mudstones, palustrine limestones and calcretes from the Esquivias locality (Madrid Basin, Spain) has been analyzed by X-ray diffraction, infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and analytical electron microscopy to determine its characteristics and chemical composition. Other
García Romero, Emilia   +2 more
openaire   +2 more sources

On the socio-sexual behaviour of the extinct Ursid Indarctos arctoides: an approach based on its baculum size and morphology. [PDF]

open access: yesPLoS ONE, 2013
The fossil bacula, or os penis, constitutes a rare subject of study due to its scarcity in the fossil record. In the present paper we describe five bacula attributed to the bear Indarctos arctoides Depéret, 1895 from the Batallones-3 site (Madrid Basin ...
Juan Abella   +4 more
doaj   +1 more source

The “mid”-Cretaceous (Lower Cenomanian) Continental Vertebrates of Gara Samani, Algeria. Sedimentological Framework and Palaeodiversity

open access: yesFrontiers in Earth Science, 2022
Excellent outcrops of the upper part of the “Continental Intercalaire” deposits occur in the Gara Samani area, southern Algeria. These strata are recognised herein as belonging to the Gara Samani Formation, which is composed of the Samani Vertebrate-rich
Madani Benyoucef   +6 more
doaj   +1 more source

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