Results 71 to 80 of about 26,858 (250)

The early Cycladic settlement at Dhaskalio, Keros: preliminary report of the 2008 excavation season [PDF]

open access: yes, 2009
The 2008 excavations on the small island of Dhaskalio opposite Dhaskalio Kavos on the Cycladic island of Keros are reviewed. An account is given of the survey, recording many walls of the early Bronze Age, and of the excavations, continued from the 2007 ...
Brodie, N.   +3 more
core   +1 more source

Clinical Evaluation of Potential Interaction Between Bemnifosbuvir and Ruzasvir With an Assessment of Food Effect: Results of a Phase 1 Study in Healthy Participants

open access: yesClinical Pharmacology in Drug Development, Volume 14, Issue 6, Page 461-471, June 2025.
Abstract A combination of nucleotide hepatitis C virus (HCV) nonstructural protein (NS) 5B and 5A inhibitors is a preferred standard of care for treating chronic HCV. Bemnifosbuvir is a novel oral guanosine nucleotide prodrug with potent pan‐genotypic inhibitory activity against HCV NS5B.
Xiao‐Jian Zhou   +7 more
wiley   +1 more source

Revisiting Carpathian Obsidian

open access: yes, 2008
Archaeological interest in sourcing obsidian artefacts has increased exponentially since Renfrew’s ground-breaking work with Aegean obsidian (Renfrew et al. 1965; Aspinall et al. 1972). Although Mediterranean obsidian has received the lion’s share of attention, sources in Central and Eastern Europe have recently become the focus of characterisation ...
Rosania, Corinne N.   +5 more
openaire   +2 more sources

Sublimation Temperature of Circumstellar Dust Particles and Its Importance for Dust Ring Formation [PDF]

open access: yes, 2011
Dust particles in orbit around a star drift toward the central star by the Poynting-Robertson effect and pile up by sublimation. We analytically derive the pile-up magnitude, adopting a simple model for optical cross sections.
Kimura, Hiroshi   +4 more
core   +2 more sources

Origin of Silicic Magmatism at the Katla Volcanic Complex, South Iceland

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 6, June 2025.
Abstract The Katla volcano is a bimodal caldera complex within Iceland's basalt‐dominated Eastern Volcanic Zone. To unravel the petrogenesis of silica‐rich rocks from Katla, we provide new δ18O values for almost 60 basaltic, intermediate, and high‐silica eruptive rocks, including a number of partially melted felsic xenoliths.
Valentin R. Troll   +11 more
wiley   +1 more source

Research Reports from the Programme for Belize Archaeological Project, Volume Three [PDF]

open access: yes, 2009
Table of Contents : Archaeological Investigations of the Programme for Belize Archaeological Project: An Introduction to Volume Three / by Fred Valdez, Jr. and Rissa M.
Trachman, Rissa M., Valdez, Fred Jr
core   +1 more source

Geological Sources of Obsidian on Lipari and Artifact Production and Distribution in the Neolithic and Bronze Age Central Mediterranean

open access: yesOpen Archaeology, 2019
The Aeolian island of Lipari, just north of eastern Sicily, was a major geological source of high quality obsidian that was volcanically formed in the Late Mesolithic, followed by another major production in the 1st millennium AD. A much earlier volcanic
Tykot Robert H.
doaj   +1 more source

Pozzolanic Effect on the Hydration Heat of Cements Incorporating Fly Ash, Obsidian, and Slag Additives

open access: yesAdvances in Civil Engineering, 2021
Made up of an engineered mix of ordinary Portland cement (OPC) with artificial pozzolans such as trass, fly ash, and slag, the blended cements have been intensely employed within cementitious materials.
Ilker Ustabas   +3 more
doaj   +1 more source

Savanyú vulkáni üvegek ásványtan-geokémiai vizsgálata, petrológiai és vulkanológiai kiértékelése = Mineralogical and geochemical study of acid volcanic glasses, and its interpretation from petrological and volcanological point of view [PDF]

open access: yes, 2009
Változatos lemeztektonikai környezetben képződött obszidián minták fő- és nyomelemtartalmának összehasonlító vizsgálata során megállapítottuk, hogy az eredetileg gránitokra kidolgozott diszkriminációs diagramok alkalmazhatók a savanyú kiömlési kőzetek ...
Balázs, Éva   +4 more
core  

Research Reports from the Programme for Belize Archaeological Project, Volume Six [PDF]

open access: yes, 2014
Table of Contents : Background and Introduction to the 2011 Season of the Programme for Belize Archaeological Project / by Fred Valdez, Jr. and Marisol Cortes-Rincon (p.1-4) -- Investigations at Structure 3, La Milpa: The 2011 Field Season / by Debora ...
Cortes-Rincon, Marisol   +2 more
core   +1 more source

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