Results 41 to 50 of about 147,174 (356)

A multidisciplinary study of an exceptional prehistoric waste dump in the mountainous inland of Calabria (Italy) : implications for reconstructions of prehistoric land use and vegetation in Southern Italy [PDF]

open access: yes, 2020
The mountainous inland of northern Calabria (Southern Italy) is known for its sparse prehistoric human occupation. Nevertheless, a thorough multidisciplinary approach of field walking, geophysical survey and invasive research led to the discovery of a ...
Arienzo, Ilenia   +9 more
core   +3 more sources

Multiscale Hybrid Surface Topographies Orchestrate Immune Regulation, Antibacterial Defense, and Tissue Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Hybrid wrinkled topographies coordinate immune, tissue, and bacterial interactions. The surfaces promote osteointegration, tune macrophage polarization, and inhibit biofilm formation, highlighting a multifunctional strategy for next‐generation implant design.
Mohammad Asadi Tokmedash   +4 more
wiley   +1 more source

Comparison of geochemical characteristics and forming environment of volcanic rocks in Northern Xinjiang and the Songliao Basin, China

open access: yesJournal of Natural Gas Geoscience, 2017
The tectonic settings of Northern Xinjiang, Songliao Basin, and its peripheral areas all belong to the Paleoasian orogenic region. Their main structures are all composed of multiple continental segments and peripheral fold belts. Similar tectonic setting
Yanzhao Wei   +3 more
doaj   +1 more source

Rhyolitic Ash Promoting Organic Matter Enrichment in a Shallow Carbonate Platform: A Case Study of the Maokou Formation in Eastern Sichuan Basin

open access: yesFrontiers in Earth Science, 2022
Volcanic ash improves the amount of nutritive elements in the lake and ocean, but it is not fully understood how volcanic ash influences the total organic matter content (TOC) and bio-precursor, and the scope.
Qingqiang Meng   +12 more
doaj   +1 more source

Ascorbic Acid Modulates Collagen Properties in Glucocorticoid‐Induced Osteoporotic Bone: Insights into Chemical, Mechanical, and Biological Regulation

open access: yesAdvanced Healthcare Materials, EarlyView.
Osteoporosis from long‐term glucocorticoid (GIOP) use elevates susceptibility to fracture. This study shows GCs impair ascorbic acid (AA) metabolism in osteoblasts, collagen synthesis and extracellular matrix integrity. AA enhanced collagen biochemical and mechanical properties and restored osteoblast and endothelial function. These findings underscore
Micaila DE Curtis   +19 more
wiley   +1 more source

Tracking and Characterization of Moving Acoustic Sources Using an Infrasound Array at Volcán Santiaguito, Guatemala [PDF]

open access: yes, 2015
Active volcanic processes produce large amounts of acoustic energy within the infrasound band (0-20 Hz). Infrasound-sensitive microphones are often installed in addition to other forms of volcano monitoring equipment to increase the ability to remotely ...
Terbush, Brian R.
core   +1 more source

Testing the ureilite projectile hypothesis for the El'gygytgyn impact: determination of siderophile element abundances and Os isotope ratios in ICDP drill core samples and melt rocks [PDF]

open access: yes, 2013
The geochemical nature of the impactites from International Continental Scientific Drilling Project-El'gygytgyn lake drill core 1C is compared with that of impact melt rock fragments collected near the western rim of the structure and literature data ...
Abe   +94 more
core   +1 more source

Automating Vascular Biology: An End‐to‐End Automated Workflow for High‐Throughput Blood Vessel‐on‐a‐Chip Production and Multi‐Site Validation

open access: yesAdvanced Healthcare Materials, EarlyView.
AngioPlate384 is a 384‐well open‐top platform that automates production of more than 100 miniaturized, perfusable blood vessels embedded in hydrogel and supported by stromal cells. Stromal‐endothelial co‐culture strengthens blood vessel barrier function and yields responses useful for translational planning. Scalable and automation‐ready, it suits drug
Dawn S. Y. Lin   +14 more
wiley   +1 more source

The Nature of Cima Dome [PDF]

open access: yes, 1954
In the Mojave Desert of southeasternmost California is a remarkably smooth, symmetrical rock-alluvial dome which takes its name from Cima on the Union Pacific Railroad. Lawson (1915, pp.
Sharp, Robert P.
core  

Compressive Strength of Volcanic Ash/Ordinary Portland Cement Laterized Concrete [PDF]

open access: yes, 2010
This study investigates the effect of partial replacement of cement with volcanic ash (VA) on the compressive strength of laterized concrete. A total of 192 cubes of 150mm dimensions were cast and cured in water for 7, 14, 21, and 28 days of hydration ...
Olawuyi, B. J, Olusola, K. O
core   +2 more sources

Home - About - Disclaimer - Privacy