Results 81 to 90 of about 740,304 (299)

The Late Natufian at Raqefet Cave: The 2006 Excavation Season [PDF]

open access: yes, 2008
A long season of excavation took place at Raqefet cave during the summer of 2006. In the first chamber we exposed an area rich with Natufian human burials (Locus 1), a large bedrock basin with a burial and two boulder mortars (Locus 2), an in situ ...
Bocquentin, Fanny   +2 more
core  

SiO2‐CaOCME/Poly(Tetrahydrofuran)/Poly(Caprolactone) 3D‐Printed Scaffolds Drive Human‐Bone Marrow Stromal Cell Osteogenic Differentiation

open access: yesAdvanced Healthcare Materials, EarlyView.
3D printed hybrid scaffolds combining bioactive silica–calcium chemistry with elastic polymers guide human bone stem cells to form bone. The scaffolds support cell survival, organization, and invasion while releasing osteogenic ions. Together, architecture and composition drive bone‐specific gene expression, extracellular matrix organization, and ...
David R. Sory   +3 more
wiley   +1 more source

Towards a better understanding of cooking techniques in the African Middle Stone Age

open access: yesPrimitive Tider, 2017
In the first part of this paper, we present the first review of cooking techniques in the African Middle Stone Age. We show that the current knowledge is based on a restricted number of studies and on zooarchaeology and archaeobotany and that the ...
Silje Evjenth Bentsen, Sarah Wurz
doaj   +1 more source

Advanced 3D Platforms for Modeling CNS Neuroinflammation: Cell Integration, Techniques, and Challenges

open access: yesAdvanced Healthcare Materials, EarlyView.
This review summarizes the roles of key central nervous system cell types, the extracellular matrix, and the blood‐brain barrier in neuroinflammation, and their integration into diverse 3D culture systems. It examines major incorporation strategies, including direct co‐culture, hydrogel encapsulation, transwell migration assays, and bioprinting ...
Emmanuelle D. Aiyegbusi   +2 more
wiley   +1 more source

A Synthesis and Critical Inventory of Nubian Cores in Middle Stone Age and Middle Palaeolithic Assemblages

open access: yesJournal of Open Archaeology Data
Nubian Levallois technology has become a prominent and hotly debated topic in current Palaeolithic discourse, with important arguments surrounding modern human dispersals, cultural interactions and technological innovations resting on the presence of ...
Emily Hallinan
doaj   +1 more source

Flash Assembloids: A Rapid Biofabrication of a Platform for Modeling Early Glioblastoma Invasion at the Glioblastoma–Brain Organoid Interfaces

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a bioengineered assembloid (ASM) system combining glioblastoma (GBM) cells in oxidized alginate (OA) microgels with dorsal organoids (DOs). This model simulates brain tumor‐host interactions, revealing enhanced GBM invasion, altered gene expression, and aggressive infiltration patterns, demonstrating ASM as a valuable platform for ...
Chao Liang   +17 more
wiley   +1 more source

Butchering technology and metal adoption in the Bronze Age southern Levant: SEM evidence from Tell Aphek, Israel

open access: yesFrontiers in Environmental Archaeology
Recent zooarchaeological research suggests that the transition from stone to metal butchering tools in the southern Levant occurred during or after the Middle Bronze Age and was accompanied by changes in butchering practices.
Jeremy A. Beller   +3 more
doaj   +1 more source

Effect of Double-J Stent Placement on Shock Wave Lithotripsy Success in the Treatment of 15-25 mm Renal Upper and Middle Calyceal Stones

open access: yesHaseki Tıp Bülteni, 2020
Aim:To analyze the effect of double-J stent placement on shockwave lithotripsy (SWL) success in the treatment of relatively large (15-25 mm) upper and middle calyceal stones.Methods:A total of 167 patients who had 15-25 mm opaque upper or middle calyceal
Akif Erbin   +7 more
doaj   +1 more source

ETV2 Mediated Differentiation of Human Pluripotent Stem Cells Results in Functional Endothelial Cells for Engineering Advanced Vascularized Microphysiological Models

open access: yesAdvanced Healthcare Materials, EarlyView.
A robust method to generate functional human iPSC‐derived endothelial cells using inducible ETV2 expression. These cells self‐organize into stable, lumenized microvascular networks within microfluidic chips, surpassing conventional differentiation methods.
Shun Zhang   +12 more
wiley   +1 more source

The Evolution of Long-Range Hunting with Stone-Tipped Weapons During the Afrotropic Middle Stone Age: A Testable Framework Based on Tip Cross-Sectional Area

open access: yesQuaternary
In the Afrotropic biogeographic realm, with its diverse and high-density mammal population, early humans may have been hunting with stone-tipped weapons since ~500,000 years ago.
Yonatan Sahle, Marlize Lombard
doaj   +1 more source

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