Results 181 to 190 of about 448 (247)

Boomerang and bones: Refining the chronology of the Early Upper Paleolithic at Obłazowa Cave, Poland. [PDF]

PLoS One
Talamo S, Casaccia N, Richards MP, Wacker L, Tassoni L, Nadachowski A, Kraszewska A, Kowal M, Skłucki J, Barrington C, Kelly M, Tait F, Williams M, Figus C, Vazzana A, Di Bernardo G, Romandini M, Di Domenico G, Benazzi S, Malegori C, Sciutto G, Oliveri P, Hublin JJ, Hajdinjak M, Skoglund P, Picin A, Valde-Nowak P.   +26 more
europepmc   +1 more source

Cold‐curing effects on the strength development and sulfuric acid resistance of basalt fiber‐reinforced hybrid alkali‐activated slag mortars

Structural Concrete, EarlyView.
Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci, Murat Dener, Ahmet Benli, Bilal Balun   +3 more
wiley   +1 more source

A Paleogenomic Reconstruction of the Deep Population History of the Andes.

Cell, 2020
Nakatsuka N, Lazaridis I, Barbieri C, Skoglund P, Rohland N, Mallick S, Posth C, Harkins-Kinkaid K, Ferry M, Harney É, Michel M, Stewardson K, Novak-Forst J, Capriles JM, Durruty MA, Álvarez KA, Beresford-Jones D, Burger R, Cadwallader L, Fujita R, Isla J, Lau G, Aguirre CL, LeBlanc S, Maldonado SC, Meddens F, Messineo PG, Culleton BJ, Harper TK, Quilter J, Politis G, Rademaker K, Reindel M, Rivera M, Salazar L, Sandoval JR, Santoro CM, Scheifler N, Standen V, Barreto MI, Espinoza IF, Tomasto-Cagigao E, Valverde G, Kennett DJ, Cooper A, Krause J, Haak W, Llamas B, Reich D, Fehren-Schmitz L.   +49 more
europepmc   +1 more source

Bacterial healing of cracks in metakaolin‐based geopolymer concrete exposed to high temperatures

Structural Concrete, EarlyView.
Abstract This study examined the bacterial healing of metakaolin‐based geopolymer concrete modified with colemanite (K) and red mud (RM) exposed to high temperatures. The metakaolin‐based geopolymer concrete samples modified with 4% K and 6% RM were prepared.
Harun Tanyildizi, Mahmoud Ziada, Mucteba Uysal, Savaş Erdem   +3 more
wiley   +1 more source

Accomplishing Ethics‐Work as a Generic Social Process

Symbolic Interaction, EarlyView.
Existing systems of university research ethics are often criticized by those in the qualitative research tradition. A common thread is that ethics cannot be fully anticipated before the research begins, as is expected by most institutional review boards.
Deana Simonetto, Antony Puddephatt
wiley   +1 more source

First evidence of early neolithic archery from Cueva de los Murciélagos (Albuñol, Granada) revealed through combined chemical and morphological analysis. [PDF]

Sci Rep
Bertin I, Martín-Seijo M, Martínez-Sevilla F, McGrath K, Santana J, Herrero-Otal M, Martínez Sánchez RM, Palomo A, Regert M, Théry I, Piqué R.   +10 more
europepmc   +1 more source

Impacts to the mountain‐valley circulation from the 2023 annular solar eclipse

Weather, EarlyView.
In October 2023, as part of the Nationwide Eclipse Ballooning Project (NEBP), faculty and students from the University of North Dakota (UND) in coordination with Pueblo Community College Southwest collected weather observations during an annular solar eclipse colloquially known as a ‘ring of fire’ eclipse.
Jared W. Marquis, Montana Etten‐Bohm, Taylor N. McHone, Melissa Watters, Christopher LaRose   +4 more
wiley   +1 more source

Treating with minerals in the Middle Ages: the rare substance mūmiyā' (pitch-asphalt) and its medicinal uses in Byzantium. [PDF]

Med Hist
Bouras-Vallianatos P, Käs F.
europepmc   +1 more source

Rock-Cut Tombs of Çukurhisar at the Intersection of Cappadocia, Cilicia, and Commagene

Anadolu Araştırmaları / Anatolian Research
Oktay Dumankaya, Özden Ürkmez, Çağlar Akdağ   +2 more
openaire   +1 more source