Results 101 to 110 of about 10,467 (250)

To Extract, or not to Extract Uranium from Phosphate Rock, that is the Question [PDF]

Environmental Science & Technology, 2016
Nils Haneklaus, Yajie Sun, Roland Bol, Bernd Lottermoser, Ewald Schnug   +4 more
openaire   +2 more sources

A Multi‐Analytical Approach for the Compositional Characterization and Chronological Discrimination of Benin (Nigeria) Metal Sculptures

Archaeometry, EarlyView.
ABSTRACT This study presents a multi‐analytical archaeometric approach for the compositional characterization and chronological discrimination of Benin metal sculptures in relation to the 1897 Punitive Expedition. The methodology integrates elemental composition (XRF and ICP), stable lead isotope ratios (MC‐ICP‐MS) for alloy system characterization ...
I. Torraba, D. A. Ahumada, H. Bagán, A. Tarancón, S. Eisenhofer, J. F. García   +5 more
wiley   +1 more source

Development of techniques for high-resolution spatially-resolved elemental analysis in materials of interest in luminescence dating [PDF]

, 2009
A series of analytical techniques have been developed to characterise the surface distribution of elements in a number of materials of archaeological interest, in support of current and future research in luminescence dating techniques. Under certain
GRAINGER, SCOTT
core  

Application of Multi‐Method Dating for Understanding the Gravettian North of Moravia, Central Europe

Archaeometry, EarlyView.
ABSTRACT This article presents the results of integrating three methods to assess the age of the Upper Palaeolithic site of Pietraszyn 11 (SW Poland), close to the Moravian Gate. Sediment chronology determined using optically stimulated luminescence produced promising, yet ambiguous results (51.0 ± 3.7 to 20.3 ± 0.7 ka).
A. Wiśniewski, B. Bujalska, D. Popović, M. Baca, K. Zarzecka‐Szubińska, A. Lemanik, M. Hein, S. Talamo, P. Moska, H. Fewlass, D. Tokarz, Z. Jary, B. Przybylski, D. Bobak, M. Połtowicz‐Bobak, K. Wertz, A. Nadachowski   +16 more
wiley   +1 more source

Uranium separations using extraction chromatography

, 2000
In the analysis of environmental samples for uranium and thorium pollutants and at natural levels for the dating of geological samples there was felt a need to develop better uranium and thorium separation procedures to replace the established anion ...
Helen Carter (7166609)
core  

Carbamoylalkylphosphonates Type Ligand for Uranium Extraction from Phosphates Ores

, 2016
Carbamoylphosphonic acid and carbamoylphosphonate ligands have been synthesized and studied for uranium extraction from phosphates ores. From a structure-selectivity approach, the molecular design of such ligands was optimized leading to a specific one ...
Pellet-Rostaing, S, Burdet, Fabien, Leydier, Antoine, Arrachart, Guilhem, Miguirditchian, Manuel, Turgis, Raphaël, Bernier, Gilles, Dourdain, Sandrine, Pellet-Rostaing, Stéphane   +8 more
core   +2 more sources

Environmental Legitimation in A Global Context: Emerging Market Multinational Enterprises Versus Developed Market Multinational Enterprises

Business Ethics, the Environment &Responsibility, EarlyView.
ABSTRACT The purpose of this paper is to study the differences and similarities between emerging market multinationals (EMNEs) and developed market multinationals (DMNEs) in their levels of adoption of environmental management policies and environmental disclosure practices when they increase their international diversification.
Nuria Esther Hurtado‐Torres, Eulogio Cordón‐Pozo, Efrén Gómez‐Bolaños, Maria Ruiz‐Castillo   +3 more
wiley   +1 more source

Comparative 30‐day life cycle assessment of bladder drainage strategies

BJU International, EarlyView.
Objective To identify the most environmentally sustainable urinary drainage strategies commonly used to manage bladder outlet obstruction and also to highlight actionable levers for reducing the footprint of urinary drainage in clinical practice. Materials and Methods We conducted a comparative life cycle assessment of three urinary drainage strategies
Arthur Peyrottes, Thibaut Long‐Depaquit, Marc Fourmarier, Benjamin Pradere, Benoit Peyronnet, Laurent Zieleskiewicz, Alessandro Uleri, Jean‐Nicolas Cornu, Vincent Misrai, Richard Mallet, Michael Baboudjian, on behalf of the French Sustainability Task Force from the Association Française d'Urologie   +11 more
wiley   +1 more source

Photoisomerization-mediated tunable pore size in metal organic frameworks for U(VI)/V(V) selective separation

Nature Communications
Selective extracting uranium from seawater is quite challenging, particularly the presence of vanadium, which poses a significant obstacle for most amidoxime absorbents.
Pengcheng Zhang, Yixin Zhang, Fei Wu, Weixiang Xiao, Weiwei Hua, Ziwen Tang, Wei Liu, Suwen Chen, Yaxing Wang, Wangsuo Wu, Duoqiang Pan   +10 more
doaj   +1 more source

Cortical‐Hypothalamic Assembloids Uncover the Cortical Regulation of Hypothalamic Responses to Fatty Acid

Cell Proliferation, EarlyView.
By assembling cortical‐hypothalamic circuits, we show that cortical input protects hypothalamic neurons from fatty acid‐induced damage, which activates PGC1α to boost mitochondrial function. This reveals a cortico‐hypothalamic axis that defends against metabolic stress.
Mengdan Tao, Xiaowen Du, Qi Chen, Wenxin Mu, Shuning Lou, Xu Zhang, Min Xu, Jiting Li, Yuxuan Guo, Wanying Zhu, Yan Liu   +10 more
wiley   +1 more source