Results 41 to 50 of about 181,041 (277)

One‐Step Curcumin‐Mediated Multiphoton Lithography for Bioactive 3D Scaffolds

open access: yesAdvanced Functional Materials, EarlyView.
Curcumin‐mediated multiphoton lithography enables one‐step fabrication of highly architected complex gelatin methacryloyl scaffolds by exploiting curcumin as a multifunctional bioactive photoinitiator. The resulting 3D structures support mesenchymal stem cell adhesion, proliferation, and migration, while exhibiting dual antibacterial activity through ...
Myrto Charitaki   +7 more
wiley   +1 more source

Statistical methods in weak gravitational lensing [PDF]

open access: yes, 2015
This thesis studies several topics in the area of weak gravitational lensing and addresses some key statistical problems within this subject. A large part of the thesis concerns the measurement of galaxy shapes for weak gravitational lensing and the ...
Kacprzak, T
core  

Gravitational Lensing by Vector Perturbations [PDF]

open access: yes, 2022
Perturbation theory is a useful tool used in cosmology to describe fluctuations in an almost-uniform universe. We focus on vector-type perturbations, and investigate their gravitational lensing effects.
Renzini, Arianna
core  

Spatial Control of Light‐Responsive Proteins and Optogenetics Within Hydrogels via Volumetric Bioprinting

open access: yesAdvanced Materials, EarlyView.
Spatiotemporal control over cell behavior within bioprinted constructs remains a key challenge in biofabrication. Volumetric bioprinting using multi‐wavelength light sources permits to activate light‐sensitive intracellular proteins as well as optogenetic gene and protein expression circuits in bioprinted cells, in addition to enabling fast printing of
Davide Ribezzi   +14 more
wiley   +1 more source

Evolving Morphology of Resolved Stellar Einstein Rings

open access: yesThe Astrophysical Journal, 2023
We consider strong gravitational lensing by nearby stars. Using our wave-optical treatment of lensing phenomena, we study Einstein rings that may form around nearby stellar lenses.
Slava G. Turyshev, Viktor T. Toth
doaj   +1 more source

Gravitational Lensing Effects from Models of Loop Quantum Gravity with Rigorous Quantum Parameters

open access: yesUniverse
Many previous works have studied gravitational lensing effects from Loop Quantum Gravity. So far, gravitational lensing effects from Loop Quantum Gravity have only been studied by choosing large quantum parameters much larger than the Planck scale ...
Haida Li, Xiangdong Zhang
doaj   +1 more source

Passive Directional Water Transport on Superhydrophobic Gradient Textures Fabricated by Direct Laser Interference Patterning

open access: yesAdvanced Materials Technologies, EarlyView.
Microstructures fabricated by two‐beam DLIP combining spatial‐period and roughness gradients are fabricated to enhance directional transport of water droplets. The coupled gradients increase transport distance by 160% and strongly suppress motion against the gradient, demonstrating an effective strategy for controlled droplet manipulation.
Tianhao Wu   +3 more
wiley   +1 more source

Weak Gravitational Lensing [PDF]

open access: yesProceedings of Frontiers of Fundamental Physics 14 — PoS(FFP14), 2008
In this brief review I consider the advances made in weak gravitational lensing over the last 8 years, concentrating on the large scales - cosmic shear. I outline the theoretical developments, observational status, and the challenges which cosmic shear must overcome to realise its full potential. Finally I consider the prospects for probing Dark Energy
openaire   +4 more sources

Shadow and Weak Deflection Angle of a Black Hole in Nonlocal Gravity

open access: yesUniverse, 2022
Black hole shadow and gravitational lensing play important roles in testing gravitational theories in the strong field regime. As the first-order modifications from quantum gravity, the nonlocality can be manifested by black hole shadow and gravitational
Qi-Ming Fu   +4 more
doaj   +1 more source

Upscaling Pulsed Laser Fragmentation in Liquids by Advanced Free‐Flow Setups

open access: yesAdvanced Materials Technologies, EarlyView.
Advanced flow setups providing thin colloid films are introduced to upscale pulsed laser fragmentation in liquids for sustainable nanoparticle synthesis. Their potential is demonstrated by yielding remarkably small ZnO nanoparticles of <7 nm. Numerical simulations complement the study, revealing that the superior performance can be attributed to ...
Jan Lino Kricke   +5 more
wiley   +1 more source

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