Results 171 to 180 of about 6,605 (271)

Bridging the Late Antique Gap in Northwest Arabia: New Archaeological Evidence on the Occupation of Wādī al‐Qurā (al‐ʿUlā [AlUla], Saudi Arabia) Between the Third and Seventh Centuries CE

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT In 2019, the Dadan Archaeological Project (CNRS/RCU/AFALULA) identified a Late Antique village 1 km south of ancient Dadan in the al‐ʿUlā valley (northwest Saudi Arabia). Three excavation seasons at this site (2021–2023) have uncovered a massive building constructed in the late third or early fourth cent.
Jérôme Rohmer, Abdulrahman Alsuhaibani, Charlène Bouchaud, Elora Chambraud, Vladimir Dabrowski, Hatem Djerbi, Fabien Lesguer, Hervé Monchot, Paul Picavet, Louise Purdue, Bertrand Riba, Shadi Shabo   +11 more
wiley   +1 more source

Optimizing and characterization of titanium dioxide extracted from black sand using response surface methodology (RSM). [PDF]

BMC Chem
Aly ST, Farouk SM, Zaki H, Tohamy TA, Sheikh ME, Sultan AERZ, Fouda M, Mustafa H, Sater OA, Ezzat M, Mabrouk MA.   +10 more
europepmc   +1 more source

An Overview of the Rock Art of AlUla: Tracing Changes in Content and Form Across 12,000 Years of Human History

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT Between 2018 and 2021, the Identification and Documentation of Immovable Heritage Assets (IDIHA) Project recorded over 19,000 rock art panels in the AlUla (al‐‘Ulā) region of north‐western Saudi Arabia. This study presents a chronological assessment of the corpus, drawing on superimpositions, datable motifs, inscriptions, and varnish formation,
Maria Guagnin, Laura Morabito, Hannah Leighton, Tahani AlMahmoud   +3 more
wiley   +1 more source

Illuminating Rembrandt's <i>Chiaroscuro</i> in <i>The Night Watch</i>: the painting process of Van Ruytenburch's costume. [PDF]

NPJ Herit Sci
De Keyser N, van Loon A, Gabrieli F, Vanmeert F, Broers FTH, Noble P, De Meyer S, Gestels A, Gonzalez V, Almasian M, van der Werf I, Hermens E, Janssens K, Keune K.   +13 more
europepmc   +1 more source

Corneal power modelling with OCT data – Thin and thick lens paraxial models versus raytracing

Acta Ophthalmologica, EarlyView.
Abstract Background Evaluating keratometric power with Zeiss index (PKZ), paraxial thick cornea power (Gullstrand [PG]) and power referenced to the front (PFV) and back vertex plane (PBV) and raytracing power (PR), and modelling the deviation from PKZ with a multivariable linear prediction model.
Achim Langenbucher, Nóra Szentmáry, Alan Cayless, Peter Hoffmann, Jascha Wendelstein   +4 more
wiley   +1 more source

Discovering the dual degradation pathway of emerald green in oil paints: The effects of light and humidity. [PDF]

Sci Adv
Carboni Marri S, Monico L, Rosi F, Miliani C, Vivani R, Janssens K, De Meyer S, Mathon O, Cotte M, Burghammer M, Garrevoet J, Falkenberg G, Avranovich Clerici E, Rios-Casier A, Van der Snickt G, Romani A.   +15 more
europepmc   +1 more source

Lithic analysis in African archaeology: Advances and key themes

Archaeometry, EarlyView.
Abstract Stone artifacts (lithics) preserve for extended periods; thus they are key evidence for probing the evolution of human technological behaviors. Africa boasts the oldest record of stone artifacts, spanning 3.3 Ma, rare instances of ethnographic stone tool‐making, and stone tool archives from diverse ecological settings, making it an anchor for ...
Deborah I. Olszewski, Amanuel Beyin, Justin Pargeter   +2 more
wiley   +1 more source

3D Printed Ion-Selective Electrodes Enriched with ZnO Nanoparticles for Potassium Detection. [PDF]

Sensors (Basel)
Hajdin I, Prkić A.
europepmc   +1 more source

Quality from Kent: Preliminary results from the analysis of fifth‐ to seventh‐century silver alloys

Archaeometry, EarlyView.
Abstract This paper explores early results from the chemical and lead isotope analysis of 30 silver‐alloy objects from southeast England dating between the fifth and seventh centuries CE, presenting limited aspects of the three main analyses that were conducted. First, a comparison of the results gained from surface x‐ray fluorescence (pXRF) values and
Toby F. Martin, Matthew J. Ponting
wiley   +1 more source

Lithium-ion battery waste as a robust oxygen evolution reaction electrocatalyst for seawater splitting. [PDF]

Sci Rep
Warczak M, Belka K, Urbańska W, Michalska M, Nwaji N, Osial M.   +5 more
europepmc   +1 more source