Results 61 to 70 of about 178,359 (292)

Functional Approach to Classical Yang-Mills Theories [PDF]

, 2001
Sometime ago it was shown that the operatorial approach to classical mechanics, pioneered in the 30's by Koopman and von Neumann, can have a functional version.
Carta, D. Mauro, Dirac, Gozzi, Gozzi, Henneaux, Henneaux, Mauro, P. Carta   +8 more
core   +2 more sources

Stable Protein‐Based G‐Quadruplex‐Derived Supramolecular Bioinks as Tunable ECM‐Mimetic Constructs Assembled by Combining Non‐Covalent and Covalent Strategies

Advanced Materials, EarlyView.
Harnessing the synergistic interplay of supramolecular self‐assembly, under macromolecular crowding conditions, and enzymatic‐mediated covalent crosslinking toward a stable protein‐based G‐quadruplex‐derived supramolecular bioink. This bioinspired strategy enables the biofabrication of complex and tunable ECM‐mimetic constructs, providing a platform ...
Vera Sousa, Rita Sobreiro‐Almeida, Bart W. L. van den Bersselaar, E. W. Meijer, Ghislaine Vantomme, João Borges, João F. Mano   +6 more
wiley   +1 more source

A Classical Field Theory of Gravity and Electromagnetism

Journal of Modern Physics, 2014
A classical field theory of gravity and electromagnetism is developed. The starting point of the theory is the Maxwell equations which are directly tied to the Riemann-Christoffel curvature tensor. This is done through the derivatives of the Maxwell tensor which are equated to a vector field  contracted with the ...
openaire   +2 more sources

Holographic chiral induced W-gravities [PDF]

, 2014
We study boundary conditions for 3-dimensional higher spin gravity that admit asymptotic symmetry algebras expected of 2-dimensional induced higher spin theories in the light cone gauge.
Poojary, Rohan R., Suryanarayana, Nemani V.   +1 more
core   +2 more sources

Multifunctional Bio‐Based Packaging for Perishable Foods: Structural Design, Scalable Fabrication, and Versatile Applications

Advanced Materials, EarlyView.
An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang, Jiaqi Zhang, Mei Cui, Wei Qi, Renliang Huang, Rongxin Su, Kai Zhang   +6 more
wiley   +1 more source

Kerr-Schild double copy for Kundt spacetimes of any dimension

Journal of High Energy Physics
We show that vacuum type N Kundt spacetimes in an arbitrary dimension admit a Kerr-Schild (KS) double copy. This is mostly done in a coordinate-independent way using the higher-dimensional Newman-Penrose formalism.
Marcello Ortaggio, Vojtěch Pravda, Alena Pravdová   +2 more
doaj   +1 more source

Extra polarization states of cosmological gravitational waves in alternative theories of gravity

, 2010
Cosmological Gravitational Waves (GWs) are usually associated with the transverse-traceless part of the metric perturbations in the context of the theory of cosmological perturbations. These modes are just the usual polarizations `+' and `x' which appear
Alves M E S Miranda O D de Araujo J C N, Bessada D, Corda C, de Paula W L S, Durrer R, Grishchuk L P, Grishchuk L P, J C N de Araujo, Lifshiftz E M, Lifshiftz E M, M E S Alves, O D Miranda, Peebles P J E, Rosen N, Weinberg S, Will C M, Will C M, Zakharov V I   +17 more
core   +1 more source

Quantum interactions between a laser interferometer and gravitational waves [PDF]

, 2018
LIGO's detection of gravitational waves marks a first step in measurable effects of general relativity on quantum matter. In its current operation, laser interferometer gravitational-wave detectors are already quantum limited at high frequencies, and ...
Chen, Yanbei, Pang, Belinda
core   +3 more sources

Superior Impact‐Resistant Composite Hydrogels Through an Ionic Coupling Strategy

Advanced Materials, EarlyView.
An ionic coupling strategy is developed to simultaneously reinforce networks and interfaces in composite hydrogels. Sodium citrate acts as a single multifunctional ionic coupler to strengthen the poly(vinyl alcohol) matrix via the Hofmeister effect, reinforce the chitosan–sodium alginate nanofiber network via desolvation and electrostatic crosslinking,
Hao Zhuo, Quyang Liu, Xinyu Dong, Hongzhi Zheng, Lingyi Hong, Wei Zhai   +5 more
wiley   +1 more source

Trace anomaly and Hawking effect in 2D dilaton gravity theories [PDF]

, 1996
We investigate the classical and semiclassical features of generic 2D, matter-coupled, dilaton gravity theories. In particular, we show that the mass, the temperature and the flux of Hawking radiation associated with 2D black holes are invariant under ...
Cadoni, Cadoni, Cadoni, Callan, Jackiw, Louis-Martinez, M. Cadoni, Mann, Russo, Strominger, Teitelboim   +10 more
core   +3 more sources