Results 11 to 20 of about 267,799 (305)

Exploring Hypotheses on Early Holocene Caspian Seafaring Through Personal Ornaments: A Study of Changing Styles and Symbols in Western Central Asia

open access: yesOpen Archaeology, 2023
This article studies the discoid Didacna sp. shell beads discovered at Kaylu, a Middle Holocene burial site located in Southern Turkmenistan. Microscopic, morphometric, spectrometric, and SEM analyses were carried out on the material to identify how the ...
Rigaud Solange   +10 more
doaj   +1 more source

Pleistocene Palaeoart of Africa

open access: yesArts, 2013
This comprehensive review of all currently known Pleistocene rock art of Africa shows that the majority of sites are located in the continent’s south, but that the petroglyphs at some of them are of exceptionally great antiquity. Much the same applies to
Robert G. Bednarik
doaj   +1 more source

Fabrication and Structural, Mechanical, and Biological Characterization of Vancomycin-Loaded Chitosan-Hydroxyapatite-Gelatin Beads for Local Treatment of Osteomyelitis [PDF]

open access: yesJournal of Mazandaran University of Medical Sciences, 2023
Background and purpose: Topical antibiotic medication is an alternative method in treatment of local infections, especially osteomyelitis. Currently several biomaterials are used for this purpose.
Nafiseh Jirofti   +5 more
doaj  

WCZESNOŚREDNIOWIECZNY SZKLANY PACIOR Z KRUSZWICY

open access: yesSlavia Antiqua, 2021
In the gord in Kruszwica, on the settlement level from the 4th quarter of the 11th century, a piece of a large bead was discovered. It was made of black and purple glass, decorated with a set glass thread and small buttons with the (floral) millefiori ...
Joanna Sawicka
doaj   +1 more source

Pleistocene Paleoart of Australia

open access: yesArts, 2014
Pleistocene rock art is abundant in Australia, but has so far received only limited attention. Instead there has been a trend, begun over a century ago, to search for presumed depictions of extinct megafauna and the tracks of such species.
Robert G. Bednarik
doaj   +1 more source

Proof of concept of using a membrane-sensing peptide for sEVs affinity-based isolation

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Introduction: One main limitation in biomarker studies using EVs is the lack of a suitable isolation method rendering high yield and purity samples in a quick and easily standardized procedure.
Beatriz Benayas   +10 more
doaj   +1 more source

Study on the Effects of Grinding Factor and Scaling up in Grinding Using Horizontal Dry Bead Mill [PDF]

open access: yesMATEC Web of Conferences, 2021
Effect of grinding factor and scaling up were carried out by grinding using horizontal dry bead mill. For the experiments, 2 sizes of horizontal dry bead mills with different capacities, lab and manufacturing scale, were used to study scaling up and down.
Tamura Takahiro, Kimata Mitsumasa
doaj   +1 more source

Pleistocene Palaeoart of Asia

open access: yesArts, 2013
This comprehensive overview considers the currently known Pleistocene palaeoart of Asia on a common basis, which suggests that the available data are entirely inadequate to form any cohesive synthesis about this corpus.
Robert G. Bednarik
doaj   +1 more source

Topological structure and experimental investigation of a novel whole tire bead

open access: yesMaterials & Design, 2021
The tire bead area is a vulnerable part of the tire. By analyzing its development trend, a novel topological structure of the whole tire bead was put forward.
Yong Li   +4 more
doaj   +1 more source

Mass dimension one fields with Wigner degeneracy: A theory of dark matter

open access: yesNuclear Physics B, 2023
Whatever dark matter is, it must be one irreducible unitary representation of the inhomogeneous Lorentz group or another. We here develop a formalism of mass dimension one fermions and bosons of spin one half, and show that they provide natural dark ...
Dharam Vir Ahluwalia   +2 more
doaj   +1 more source

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