Results 121 to 130 of about 11,894 (252)

Investigating relationships among strontium, barium, and seasonality in wild baboons

Archaeometry, EarlyView.
Abstract Geochemical profiles of Australopithecus africanus and baboon teeth show fluctuating trace elements, possibly reflecting seasonal diets. Here we use laser ablation–inductively coupled plasma–mass spectrometric measurements of calcium‐normalized strontium and barium ratios (Sr/Ca and Ba/Ca) and ion microprobe analyses of oxygen isotopes (δ18O ...
Maya Bharatiya, Christine Austin, Manish Arora, Janaína N. Ávila, Esme K. Beamish, Wendy Dirks, Daniel R. Green, Nicole D. Leonard, W. Scott McGraw, Larissa Swedell, Ian S. Williams, Jian‐xin Zhao, Tanya M. Smith   +12 more
wiley   +1 more source

Navigating the Flames: Comparative Analysis of Cremation Practices in the Roman and Early Medieval Periods at Gbely‐Kojatín (SK) and Přítluky (CZ)

Archaeometry, EarlyView.
ABSTRACT Cremation became the dominant funerary practice in the Middle Danube Region during the Roman Period (RP) (1st–4th century) and reappeared in the Early Medieval Ages (EMA) (6th/7th–8th century). This study aims to reconstruct differences in cremation conditions from the Gbely‐Kojatín site (Slovakia, RP and EMA) and the Přítluky site (Czech ...
Katarína Hladíková, Anna Pankowská, Marek Hladík, Pavla Kučerová, Rastislav Milovský   +4 more
wiley   +1 more source

The Fiery Eyes of a Maenad: Origin Determination of Faceted Garnet Eye Inlays in a Roman Bronze Bust From Southern Tyrol

Archaeometry, EarlyView.
ABSTRACT In 1837, the Tyrolean State Museum Ferdinandeum in Innsbruck, Austria, purchased a Roman bronze statue of a maenad from the 2nd century ce with red garnets as facetted eye inlays found near Brixen, Southern Tyrol. These garnets were investigated using optical microscopy, a portable hand‐held and a stationary micro‐X‐ray fluorescence device, as
H. Albert Gilg, Simon Wagner, Anton Höck, Peter Tropper   +3 more
wiley   +1 more source

Physicochemical and remineralisation properties of calcium silicate and glass ionomer cements applied in simulated caries‐affected dentine

European Journal of Oral Sciences, EarlyView.
Abstract Calcium silicate‐based and glass ionomer cements are often used in caries‐affected dentine. This study investigated the remineralising and physicochemical properties of two calcium silicates and a glass ionomer cement. Human molars with Class I cavities were subjected to pH cycling to simulate caries lesions.
Monika Lukomska‐Szymanska, Mateusz Radwanski, Stella Helen Constantinidou, Augusto R. Elias Boneta, Umer Daood, Kharouf Naji, Filippo Cardinali, Salvatore Sauro   +7 more
wiley   +1 more source

Chrono-thermométrie par traces de fission : une perspective nouvelle pour la prospection pétrolière Chronothermometry by Fission-Track Dating: New Means for Petroleum Prospection

Oil & Gas Science and Technology, 2006
La propriété caractéristique des traces de fission d'enregistrer les paléotempératures offre la possibilité unique de caler des événements thermiques dans leur contexte géologique et donc de modéliser quantitativement les histoires thermiques des roches.
Storzer D., Selo M.
doaj   +1 more source

In situ evaluation of the bleaching efficacy of experimental hydrogen peroxide hydrogel with MnO‐doped Biosilicate activated by violet LED light

European Journal of Oral Sciences, EarlyView.
Abstract Hydrogen peroxide (HP) at 35% is effective for dental bleaching but may reduce enamel mineral content and induce structural changes. This study developed a bleaching‐hydrogel containing 6%HP and manganese‐oxide–doped Biosilicate (MnO_BioS), activated by violet LED, under in situ conditions.
Rafael Dascanio, Marina Trevelin Souza, Camila Siqueira Silva Coelho, Matheus Kury, Edgar Dutra Zanotto, Vanessa Cavalli   +5 more
wiley   +1 more source

Peixe Zircon as a Quality Control Reference Material in U‐Pb Geochronology by LA‐ICP‐MS

Geostandards and Geoanalytical Research, EarlyView.
Key Points Peixe#0 zircon was characterised for U‐Pb geochronology using CA‐ID‐TIMS, SIMS and a long‐term LA‐ICP‐MS data set. The consistent results establish Peixe#0 as a reference material for U‐Pb quality control. Trace element heterogeneity requires careful, CL‐guided spot selection.
Margareth Sugano Navarro, Erica Martini Tonetto, Elson P. Oliveira, Mauricio Ibañez‐Mejia, Cristina Talavera, Neal J. McNaughton, Jacinta Enzweiler, Michael Wiedenbeck   +7 more
wiley   +1 more source

New Magnetite Reference Material for SIMS δ18O Measurements and a Study of Precision and Accuracy Due to Crystal Orientation Effects

Geostandards and Geoanalytical Research, EarlyView.
Key Points A new magnetite reference material (PF21mt) is available for δ18O measurements by SIMS. Reproducibility of measurement results in two laboratories suggest orientation bias of ±2‰ (2s) at 20 keV. Repeatability improves to ±1‰ (2s) when using a 13 keV protocol, suggesting reduced orientation bias. In situ isotope ratio measurements provide the
Michelle Ulrich, Daniela Rubatto, Maria Rosa Scicchitano, Benita Putlitz, Thomas Bovay   +4 more
wiley   +1 more source

A Systematic Review Evaluating Methods for Diagnosis, Treatment and Prevention of Dental Erosions

International Journal of Dental Hygiene, EarlyView.
ABSTRACT Aim The aim of this systematic review was to investigate the quality of evidence for methods used to diagnose, restore and prevent dental erosions, by evaluating and summarising clinical controlled studies and in situ studies covering this field.
Maria Skalsky Jarkander, Helena Domeij, Irene Edebert, Alfheidur Astvaldsdottir, Margaret Grindefjord, Annsofi Johannsen   +5 more
wiley   +1 more source

The Complex World of Toothpaste Diversity, Meeting Patient Clinical Needs. An Umbrella Review

International Journal of Dental Hygiene, EarlyView.
ABSTRACT Background Amidst numerous recent advancements in toothpaste formulations and active ingredients, some clinicians may believe all toothpastes are similar despite differences in their active ingredients and corresponding clinical application.
Jeanie Suvan, Crystal Marruganti
wiley   +1 more source