Results 81 to 90 of about 91,030 (266)

A Hybrid Bioprinting–Microfabrication Approach to Controllable Multitype Spheroid Arrays for Modeling Tumor Heterogeneity

open access: yesAdvanced Healthcare Materials, EarlyView.
This work introduces a “cancer‐in‐a‐well” technology that recreates tumor heterogeneity in vitro using multitype spheroid arrays. Combining bioprinting/microdispensing with microstructured culture devices, the system improves drug screening and modeling of tumor complexity.
Simone Bonetti   +10 more
wiley   +1 more source

Comparative processing studies of the Arkachan deposit gold-bearing ores using dry separation and classical wet gravity separation methods

open access: yesГорные науки и технологии
The use of dry methods of processing and beneficiation of mineral raw materials is one of the promising areas, as this approach to concentrate production is less energy-consuming, less labor-intensive, and economically beneficial.
Andrey I. Matveev   +3 more
doaj   +1 more source

Determination of the parameters of the dynamic braking roller of the gravity pallet rack [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета
The use of a block storage system and optimization of picking routes in warehouses reduces the costs of basic logistics operations. Equipping warehouses with racks with a gravity roller conveyor ensures a more compact arrangement of products in ...
Guskova A.S.   +3 more
doaj   +1 more source

Advances in 3D Bioprinting for Breast Cancer Modeling: Tumor Microenvironment, Metastasis, and Drug Screening

open access: yesAdvanced Healthcare Materials, EarlyView.
Three‐dimensional bioprinting transforms breast cancer modeling from simple constructs into spatially organized, multicellular, perfused, and patient‐derived platforms. This review shows how bioinks, cellular composition, architecture, and flow govern tumor behavior and drug response, while revealing why complexity alone is insufficient without ...
Mustafa Nakipoglu   +7 more
wiley   +1 more source

Regolith behavior under asteroid-level gravity conditions: low-velocity impact experiments

open access: yesProgress in Earth and Planetary Science, 2018
The dusty regolith covering the surfaces of asteroids and planetary satellites differs in size, shape, and composition from terrestrial soil particles and is subject to environmental conditions very different from those found on Earth.
Julie Brisset   +5 more
doaj   +1 more source

Experimental study on gravity currents flowing on heated walls

open access: yesExperiments in Fluids
Abstract We present an experimental study on steady gravity currents advancing along a heated wall. The study aims to assess how the structure and dynamics of a wall-heated current are modified with respect to the adiabatic-wall case.
Lanzini, Stefano   +4 more
openaire   +2 more sources

Comprehensive In Vitro Profiling Demonstrates Successful Immune Evasion of Bioengineered Immune‐Shielded Heart Valves

open access: yesAdvanced Healthcare Materials, EarlyView.
Living donor heart valves offer superior durability for pediatric patients but trigger immune rejection. Lentiviral delivery of viral immune‐evasion genes US2 and Serpin b9 into donor valve cells and valve tissue suppresses HLA expression, reduces PBMC clustering and cytotoxic killing, and induces transcriptional immune‐tolerance programs, paving the ...
Abraham van Wijk   +11 more
wiley   +1 more source

Weak mixing angle under U(1, 3) colored gravity

open access: yesJournal of High Energy Physics
Colored gravity, based on U(1, 3) symmetry, emerges naturally in the complexification of Lorentzian manifolds and integrates U(1) electromagnetism as a subcase.
R. Monjo
doaj   +1 more source

Quality assessment of global gravity field models in the Antarctic region based on airborne gravity data

open access: yesGeodesy and Geodynamics
As the largest ice sheet storage area in the world, Antarctica's gravity field characteristics are key data for studying ice sheet mass balance, sea level changes, and polar resource exploration.
Xinhong Xiao   +4 more
doaj   +1 more source

Microfluidic Engineering of Microgels: A Review of Emerging Technologies, Materials, Fabrication Strategies, and Applications

open access: yesAdvanced Healthcare Materials, EarlyView.
Recent advances in microfluidic technologies for microgel fabrication are critically reviewed, highlighting the capabilities and limitations of major microfluidic platforms and discussing how platform design, material selection, and crosslinking strategies influence microgel architecture and functionality. Current challenges and future opportunities in
Afshin Abrishamkar   +6 more
wiley   +1 more source

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