Results 71 to 80 of about 72,022 (266)

Modulus‐Switchable Miniature Robots for Biomedical Applications: A Review

Advanced Robotics Research, EarlyView.
Materials, robot designs, proof‐of‐concept functions, and biomedical applications of modulus‐switchable miniature robots. Miniature soft robots have shown great potential in biomedical applications due to their excellent controllability and suitable mechanical properties in biological environments.
Chunyun Wei, Yibin Wang, Jiangfan Yu
wiley   +1 more source

Qualitative meta-synthesis comparing non-Newtonian, non-Kolmogorov, and modified Krieger computational fluid dynamics models exploring the intracranial aneurysm dynamics: state of the art

Interdisciplinary Neurosurgery
Background: Computational fluid dynamics (CFD) models are crucial for examining blood flow and the morphology of brain aneurysms. These models are used to enhance the understanding of the formation, rupture, and post-treatment behavior of aneurysms.
Yao Christian Hugues Dokponou, Abdessamad El Ouahabi, Mahjouba Boutarbouch   +2 more
doaj   +1 more source

General models of Einstein gravity with a non-Newtonian weak-field limit

, 2009
We investigate Einstein theories of gravity, coupled to a scalar field \vphi and point-like matter, which are characterized by a scalar field-dependent matter coupling function e^{H(\vphi)}.
M. Milgrom, Marcello Casula, Mariano Cadoni, R.B. Tully, V. Trimble   +4 more
core   +2 more sources

A Biomarker‐Driven Ovary–Endometrium Organ‐on‐a‐Chip Mimicking 3D Multicellular Complexity and Menstrual Cyclicity for Predicting Reproductive Toxicity

Advanced Science, EarlyView.
We present a dual‐organ, biomarker‐integrated ovaryendometrium organ‐on‐a‐chip that recapitulates 3D tissue complexity, menstrual cycle dynamics, and hormonal crosstalk. This platform enables real‐time, cell‐typespecific fluorescent readouts of reproductive toxicity using ANGPTL4 and SERPINB2 as early‐response reporters.
Soo‐Rim Kim, Eun‐kyung Min, Choon‐Mi Lee, Chan Hum Park, Byung‐Chul Oh, YunJae Jung, In‐Sun Hong   +6 more
wiley   +1 more source

Dynamics of Elliptical Galaxies with Planetary Nebulae in Modified Newtonian Dynamics

, 2016
The dynamics of an elliptical galaxy within a couple of effective radii can be probed effectively by stars. However, at larger distances planetary nebulae (PNe) replace stars as the tracer of the dynamics.
Ko, Chung-Ming, Tian, Yong
core   +1 more source

Dynamics and Stability of the Two Body Problem with Yukawa Correction [PDF]

, 2020
We explore the dynamics and stability of the two body problem by modifying the Newtonian potential with the Yukawa potential. This model may be considered a theory of modified gravity; where the interaction is not simply the kepler solution for large ...
Cavan, Eli, Gkigkitzis, Ioannis, Haranas, Ioannis   +2 more
core   +1 more source

A Dynamic 3D Human Liver Sinusoid Model for Mechanistic Interrogation of Fontan‐Associated Liver Disease

Advanced Science, EarlyView.
This study presents a perfusable 3D bioengineered liver sinusoid platform that integrates biofabrication, 3D cell culture, controlled hemodynamics, and multiparametric characterization to model Fontan‐associated liver disease. By decoupling pressure and hypoxia effects, the system reveals early mechanobiological and profibrotic responses under ...
Sarah Rezapourdamanab, Mehdi Salar Amoli, Tanmay Mukherjee, Maryam Bagheri, Boeun Hwang, Linqi Jin, Yamini Singh, Sophia Norton, Ashay Vishwas Bongirwar, Shweta Karnik, Lakshmi Prasad Dasi, Reza Avazmohammadi, Rene Romero, Holly D. Bauser‐Heaton, Vahid Serpooshan   +14 more
wiley   +1 more source

Breakdown of the Newton–Einstein Standard Gravity at Low Acceleration in Internal Dynamics of Wide Binary Stars

The Astrophysical Journal, 2023
A gravitational anomaly is found at weak gravitational acceleration g _N ≲ 10 ^−9 m s ^−2 from analyses of the dynamics of wide binary stars selected from the Gaia DR3 database that have accurate distances, proper motions, and reliably inferred stellar ...
Kyu-Hyun Chae
doaj   +1 more source

Dynamics of wide binary stars: A case study for testing Newtonian dynamics in the low acceleration regime

, 2016
Extremely wide binary stars represent ideal systems to probe Newtonian dynamics in the low acceleration regimes (0.15 pc that are useful for the proposed test. While it would be premature to draw any conclusion about the validity of Newtonian dynamics at
Falomo, Renato, Ottolina, Riccardo, Scarpa, Riccardo, Treves, Aldo   +3 more
core   +1 more source

The Acceleration Scale, Modified Newtonian Dynamics and Sterile Neutrinos [PDF]

, 2015
General Relativity is able to describe the dynamics of galaxies and larger cosmic structures only if most of the matter in the Universe is dark, namely it does not emit any electromagnetic radiation. Intriguingly, on the scale of galaxies, there is strong observational evidence that the presence of dark matter appears to be necessary only when the ...
Diaferio, Antonaldo, Angus, Garry W.
openaire   +2 more sources