Results 91 to 100 of about 960,656 (258)

Hydrogel‐Based Airway‐on‐Tube With Perfusable Endothelial Lumen and Outward Epithelialization

Advanced Materials, EarlyView.
A hydrogel‐based airway‐on‐tube platform featuring a perfusable endothelial lumen and outward epithelialization is presented. The system supports primary human bronchial epithelial and lung microvascular endothelial coculture under air‐liquid interface conditions.
Ali Doryab, Jack F. Murphy, Michael Bartolf‐Kopp, Jenny C‐C Hsin, Alice Chernaik, Frank McCaughan, Yan Yan Shery Huang, Tomasz Jungst, Jürgen Groll   +8 more
wiley   +1 more source

Gravity and Gauge [PDF]

, 2012
Philosophers of physics and physicists have long been intrigued by the analogies and disanalogies between gravitational theories and (Yang-Mills-type) gauge theories.
Teh, Nicholas
core  

Gravitational action for a massive Majorana fermion in 2d quantum gravity

Journal of High Energy Physics
We compute the gravitational action of a free massive Majorana fermion coupled to two-dimensional gravity on compact Riemann surfaces of arbitrary genus. The structure is similar to the case of the massive scalar.
Corinne de Lacroix, Harold Erbin, Vincent Lahoche   +2 more
doaj   +1 more source

A flow in the forest

Journal of High Energy Physics, 2023
Using the matrix-forest theorem and the Parisi-Sourlas trick we formulate and solve a one-matrix model with non-polynomial potential which provides perturbation theory for massive spinless fermions on dynamical planar graphs. This is a lattice version of
Alexander Gorsky, Vladimir Kazakov, Fedor Levkovich-Maslyuk, Victor Mishnyakov   +3 more
doaj   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

What is the curvature of 2D Euclidean quantum gravity? [PDF]

Journal of High Energy Physics
A bstract We re-examine the nonperturbative curvature properties of two-dimensional Euclidean quantum gravity, obtained as the scaling limit of a path integral over dynamical triangulations of a two-sphere, which lies in the same universality class as Liouville quantum ...
R. Loll, T. Niestadt
openaire   +3 more sources

Renormalization group flow of f(R)-gravity [PDF]

, 2008
We use the functional renormalization group equation for quantum gravity to construct a non-perturbative flow equation for modified gravity theories of the form $S = \int d^dx \sqrt{g} f(R)$.
Afd Theoretical Physics (ITF), Saueressig, F., Machado, P.F., Dep Natuurkunde, Quantum Gravity, Strings and Elementary Particles   +4 more
core  

Self-gravity in thin protoplanetary discs

Astronomy & Astrophysics
Context. Planet-forming discs are increasingly found to harbour internal structures such as spiral arms. The origin and evolution of these is often associated with the disc’s own gravitational force.
Rendon Restrepo S., Rometsch T., Ziegler U., Gressel O.   +3 more
doaj   +1 more source

A Simple Neural Network Approach to Mineral Potential Mapping Using Open Gravity Data [PDF]

E3S Web of Conferences
As a fundamental approach in machine learning, neural networks have evolved through phases of emergence, relative dormancy, and subsequent flourishing since their inception.
Ji Jiaxin
doaj   +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