Results 91 to 100 of about 290,088 (288)

Quantized 2d Dilaton Gravity and Black Holes [PDF]

, 1995
We have examined a modified dilaton gravity whose action is separable into the kinetic and the cosmological terms for the sake of the quantization. The black hole solutions survive even in the quantized theory, but the ADM mass of the static solution is ...
Ambjorn, Banks, Bilal, Callan, Chamseddine, Chamseddine, David, de Alwis, Dijkgraaf, Distler, Giddings, Kawai, Kazuo Ghoroku, Knizhnik, Tanii   +14 more
core   +3 more sources

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

Electric/magnetic Newton-Hooke and Carroll Jackiw-Teitelboim gravity

Journal of High Energy Physics, 2023
We construct the electric and magnetic Newton-Hooke and Carroll Jackiw-Teitelboim gravity theories using the isomorphism of Newton-Hooke ± and (A-)dS Carroll algebras in (1+1)-spacetime dimensions.
Luis Avilés, Joaquim Gomis, Diego Hidalgo, Jorge Zanelli   +3 more
doaj   +1 more source

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

UNITARY MATRIX MODELS AND 2D QUANTUM GRAVITY [PDF]

Modern Physics Letters A, 1992
The KdV and modified KdV integrable hierarchies are shown to be different descriptions of the same 2D gravitational system — open-closed string theory. Non-perturbative solutions of the multicritical unitary matrix models map to non-singular solutions of the 'renormalization group' equation for the string susceptibility, [Formula: see text].
Dalley, S., Johnson, C. V., Morris, T. R., Wätterstam, A.   +3 more
openaire   +2 more sources

Schrödinger evolution of two-dimensional black holes

Journal of High Energy Physics, 2021
This paper systematically treats the evolving quantum state for two-dimensional black holes, with particular focus on the CGHS model, but also elucidating features generalizing to higher dimensions.
Steven B. Giddings
doaj   +1 more source

Bioengineered 3D hPSC‐Cholangiocyte Ducts With Physiological Signals for Biliary Disease Modeling

Advanced Healthcare Materials, EarlyView.
Tian and colleagues generated a bioengineered bile duct from human pluripotent stem cell (hPSC)‐derived intrahepatic cholangiocytes within a high‐throughput, 384‐well platform to systematically examine the influence of biliary physiological signals including fluid flow, stromal cells and bile acids, and models intrahepatic biliary disease progression ...
Britney Tian, Mina Ogawa, Manami Kondo, Gabrielle Langeveld, Ling Jun Huan, Feng Zhang, Andrew Hollinger, Sara Deir, Christine Bear, Boyang Zhang, Shinichiro Ogawa   +10 more
wiley   +1 more source

2D Black Holes and 2D Gravity

, 1993
\small The SL$(2,R)/U(1)$ coset model, with $U(1)$ an element of the third conjugacy class of $SL(2,R)$ subgroups, is considered. The resulting theory is seen to collapse to a one dimensional field theory of Liouville. Then the 2 dimensional black hole $SL(2,R)/U(1)$, with $U(1)$ a non-compact subgroup boosted by a Lorentz transformation, is considered.
openaire   +2 more sources

Boundary Liouville theory and 2D quantum gravity [PDF]

Nuclear Physics B, 2004
We study the boundary correlation functions in Liouville theory and in solvable statistical models of 2D quantum gravity. In Liouville theory we derive functional identities for all fundamental boundary structure constants, similar to the one obtained for the boundary two-point function by Fateev, Zamolodchikov and Zamolodchikov.
Kostov, Ivan K., Ponsot, Bénédicte, Serban, Didina   +2 more
openaire   +2 more sources

The No-Hair Conjecture in 2D Dilaton Supergravity [PDF]

, 1993
We study two dimensional dilaton gravity and supergravity following hamiltonian methods. Firstly, we consider the structure of constraints of 2D dilaton gravity and then the 2D dilaton supergravity is obtained taking the squere root of the bosonic ...
A. Bilal, A. Bilal, A. Bilal, B. Birnir, B. S. DeWitt, C. G. Callan, C. Teitelboim, D. Cangemi, E. Abdalla, E. Alvarez, E. D'Hoker, E. J. Martinec, E. S. Egorian, E. Witten, F. A. Berezin, F. Belgiorno, J. Gamboa, J. Gamboa, J. Russo, L. Brink, L. Brink, L. F. Urrutia, L. Johanson, O. Lechtenfeld, P. A. M. Dirac, P. A. M. Dirac, P. C. Aichelburg, P. C. Aichelburg, P. Cordero, P. Mansfield, P. van Nieuwenhuizen, R. Marnelius, R. Marnelius, S. D. Odintsov, S. de Alwis, S. de Alwis, S. Giddings, S. Hirano, S. Nojiri, S. P. de Alwis, S. W. Hawking, S. W. Hawking, T. Banks, T. Regge, U. Danielsson, Y. Georgelin, Y. Park, Y. Tanii   +47 more
core   +3 more sources