Results 61 to 70 of about 1,343,821 (192)

Note on New Massive Gravity in $AdS_3$

, 2009
In this note we study the properties of linearized gravitational excitations in the new massive gravity theory in asymptotically $AdS_3$ spacetime and find that there is also a critical point for the mass parameter at which massive gravitons become ...
A. Maloney, A. Maloney, A. Strominger, C.W. Misner, D. Anninos, D. Gaiotto, D. Gaiotto, D. Grumiller, D. Grumiller, E. Witten, E. Witten, E.A. Bergshoeff, G. Clement, G. Compere, G. Giribet, G.W. Gibbons, I.L. Buchbinder, J. Manschot, J. Manschot, J.M. Maldacena, K. Hotta, M. Blagojevic, M. Henneaux, M. Nakasone, M.-i. Park, M.-I. Park, M.R. Gaberdiel, P. Kraus, S. Carlip, S. Carlip, S. Giombi, S.D. Avramis, W. Li, W. Li, X. Yin, X. Yin, Ya-Wen Sun, Yan Liu   +37 more
core   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Infrared divergence of pure Einstein gravity contributions to cosmological density power spectrum

, 2009
We probe the pure Einstein's gravity contributions to the second-order density power spectrum. In the small-scale, we discover that the Einstein's gravity contribution is negligibly small. This guarantees that Newton's gravity is sufficient to handle the
Donghui Jeong, E. M. Lifshitz, E. T. Vishniac, Hyerim Noh, Jai-chan Hwang, P. J. E. Peebles, P. J. E. Peebles, V. Mukhanov, W. B. Bonnor, Ya. B. Zel’dovich, Ya. B. Zel’dovich   +10 more
core   +1 more source

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

Advanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen, Chi Cong Nguyen, Tran Bach Dang, Phuoc Thien Phan, Jordan Thorpe, Michael Listyawan, Nhat Minh Doan, Sinuo Zhao, Hongru Chen, Trung Thien Hoang, Mingsheng Xu, Jisheng Han, Thanh Nho Do, Adam Hill, Timothée Mouterde, Hoang‐Phuong Phan   +15 more
wiley   +1 more source

GRACE: Gravity Recovery and Climate Experiment Brochure [PDF]

, 2002
This brochure provides details about NASA's GRACE mission. Gravity controls everything from the motion of the ocean tides to the expansion of the entire Universe.

core  

The Floor‐Ceiling‐Chip, or 2 × 2D = Pseudo‐3D—Approaching 3D Cell Morphology and Organization between Two Opposing 2D Substrates with Cell‐Adhesive Protein Micropatterns

Advanced Healthcare Materials, EarlyView.
Here, we present a novel 3D cell patterning and culture platform. The “Floor‐Ceiling‐Chip” (FC‐Chip) consists of two opposing track‐etched membranes, creating a pseudo‐3D microenvironment for the cells in between. By providing the membranes with micropatterned cell‐adhesive islands of varying geometries and sizes, the FC‐Chip enables control over cell ...
Urandelger Tuvshindorj, Francesca Giacomini, Esra Güben Kaçmaz, Tim ten Brink, Lorenzo Moroni, Zeinab Tahmasebi Birgani, Clemens van Blitterswijk, Pamela Habibović, Stefan Giselbrecht, Jan de Boer, Roman Truckenmüller   +10 more
wiley   +1 more source

A spaceborne gravity gradiometer concept based on cold atom interferometers for measuring Earth's gravity field

, 2014
We propose a concept for future space gravity missions using cold atom interferometers for measuring the diagonal elements of the gravity gradient tensor and the spacecraft angular velocity.
Carraz, Olivier, Haagmans, Roger, Massotti, Luca, Siemes, Christian, Silvestrin, Pierluigi   +4 more
core   +1 more source

The Gravity of Light

, 2023
The gravitational field of an idealized plane-wave solution of the Maxwell equations can be described in closed form. After discussing this particular solution of the Einstein-Maxwell equations, the motion of neutral test particles, which are sensitive only to the gravitational background field, is analyzed. This is followed by a corresponding analysis
openaire   +2 more sources

No slip gravity [PDF]

Journal of Cosmology and Astroparticle Physics, 2018
A subclass of the Horndeski modified gravity theory we call No Slip Gravity has particularly interesting properties: 1) a speed of gravitational wave propagation equal to the speed of light, 2) equality between the effective gravitational coupling strengths to matter and light, $G_{\rm matter}$ and $G_{\rm light}$, hence no slip between the metric ...
openaire   +3 more sources

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

Advanced 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, Julia Di Stefano, Dearbhaile Dooley   +2 more
wiley   +1 more source