Results 81 to 90 of about 6,376 (214)

Environmental Contaminant Accumulation in Freshwater Turtles Inhabiting Three Rivers of the Permian Basin, New Mexico, USA

Environmental Toxicology, EarlyView.
ABSTRACT Freshwater turtles are valuable sentinels of aquatic systems due to their long lifespans and resilience in environments impacted by contaminants. The Permian Basin, dominated by the oil and gas sector, spans western Texas and southeastern New Mexico, USA, including the Pecos River and its tributaries, the Delaware and Black Rivers.
Ana G. G. Sapp, W. Gregory Cope, Christopher E. Moorman, Frank X. Weber, Ivana Mali   +4 more
wiley   +1 more source

Extraction of uranium from phosphoric acid by solvent approaches using D2EHPA and TOPO: Experimental design with environmental implications [PDF]

E3S Web of Conferences
With the current nation's great demand for nuclear power, the importance to recover uranium from phosphoric acid has become relevant, Solvent extraction is one of the most effective uranium recovery methods.
Ajabli Asmae, El Ahmadi Zakia, Berkalou Kaoutar, Ghazi Mohamed   +3 more
doaj   +1 more source

A reappraisal of the Middle to Later Stone Age prehistory of Morocco Réévaluer la préhistoire du Maroc, du Middle Stone Age au Later Stone Age

Journal of the Royal Anthropological Institute, EarlyView.
Over the last 25 years, perceptions of the early prehistory of Northwest Africa have undergone radical changes due to new fieldwork projects and a corresponding growth in scientific interest in the region. Much of this work has been focused in Morocco, known for its extremely rich fossil and archaeological records in caves and rock shelters.
Nick Barton, Abdeljalil Bouzouggar, Stacy Carolin, Louise Humphrey   +3 more
wiley   +1 more source

Research of uranium content in the composition of phosphorites of the Aznek mines [PDF]

E3S Web of Conferences
Today, practical work is being carried out in the world on processing minerals to obtain valuable components. Leading scientists from all over the world are engaged in scientific research on the extraction and production of radioactive elements, such as ...
Khurramov Navruzbek, Nurmurodov Tulkin, Rakhimova Gulrukh, Nuriddinova Ziyoda, Sharafutdinov Ulugbek   +4 more
doaj   +1 more source

The morphological affinities of the fossil cranium from Kabua, Kenya Affinités morphologiques du crâne fossile de Kabua (Kenya)

Journal of the Royal Anthropological Institute, EarlyView.
Our current understanding of the origins of Homo sapiens is limited, in part, by the fragmented fossil record from Late Pleistocene and early Holocene Africa. Here, we re‐examine the Kabua 1 cranium, an enigmatic and little‐studied Kenyan fossil discovered in the 1950s. We compare virtual reconstructions created previously by our team with a wide range
Abel Marinus Bosman, Laura Tabitha Buck, Hugo Reyes‐Centeno, Marta Mirazón Lahr, Chris Stringer, Rainer Grün, Qingfeng Shao, Katerina Harvati   +7 more
wiley   +1 more source

Sustainability of uranium extraction – a discussion

Nuclear power has been declared a green technology within the scope of the EU taxonomy. However, this decision did not take into account the mining of uranium and the final disposal of uranium products.  The different methods for mining uranium and their effects on the environment are discussed in this paper.
Engelbrecht, Hubert, Priester, Michael, Rechlin, Aissa   +2 more
openaire   +1 more source

The role of the Eastern Mediterranean in human evolution: recent results from Greece Le rôle du Bassin méditerranéen oriental dans l’évolution humaine : résultats récents en Grèce

Journal of the Royal Anthropological Institute, EarlyView.
The Eastern Mediterranean lies directly on the principal migration route for human groups dispersing across Africa, Europe, and Asia. It also encompasses the Balkans, where fauna and flora, as well as hominin populations, are thought to have persisted through glacial periods.
Katerina Harvati
wiley   +1 more source

Automated particle analysis of D.B. Cooper's tie

Journal of Forensic Sciences, EarlyView.
Abstract Automated particle analysis (APA) using scanning electron microscopy (SEM) and energy‐dispersive x‐ray spectrometry (EDS) is a well‐known method in forensics, especially as it is applied to gunshot residue analysis. Here we describe the analysis of particles lifted from D.B. Cooper's tie, which was left on the hijacked plane in 1971.
Thomas G. Kaye, Kent L. Rhodes
wiley   +1 more source

Dictyonema black shale and Triassic sandstones as potential sources of uranium

Nukleonika, 2015
The main objective of the present study was an assessment of the possibility of uranium recovery from domestic resources in Poland. In the first stage uranium was leached from the ground uranium ore by using acidic (sulfuric acid or hydrochloric acid) or
Kiegiel Katarzyna, Zakrzewska-Kołtuniewicz Grażyna, Gajda Dorota, Miśkiewicz Agnieszka, Abramowska Anna, Biełuszka Paweł, Danko Bożena, Chajduk Ewelina, Wołkowicz Stanisław   +8 more
doaj   +1 more source

Beyond Dualism: EU Policy Toward Central Asia Through Decarbonization, Problem Linkage, and Civil Society Engagement

Global Policy, EarlyView.
ABSTRACT Despite the large reappraisal of the EU's security and economic interests in Central Asia, its foreign policy impact has remained weak. This article develops a constructivist, multi‐level framework to examine how European and Chinese approaches to decarbonization are translated into policy in Kazakhstan and Uzbekistan.
Morena Skalamera
wiley   +1 more source