Results 151 to 160 of about 2,908,412 (339)
Quantum Gravity: Motivations and Alternatives [PDF]
Phys. Phil.2010:016,2010, 2009 The mutual conceptual incompatibility between GR and QM/QFT is generally seen as the most essential motivation for the development of a theory of Quantum Gravity (QG). It leads to the insight that, if gravity is a fundamental interaction and QM is universally valid, the gravitational field will have to be quantized, not at least because of the ...
arxiv
Ghost-free infinite derivative gravity
Journal of High Energy Physics, 2018 We present the construction of a gravitational action including an infinite series of higher derivative terms. The outcome is a classically consistent completion of a well-studied quadratic curvature theory.
Brage Gording, Angnis Schmidt-May
doaj +1 more source
Extended Growth Curves for the Wolf‐Hirschhorn Syndrome (4p‐)
American Journal of Medical Genetics Part A, EarlyView.ABSTRACT Wolf‐Hirschhorn syndrome (WHS) is a rare, highly variable contiguous gene deletion syndrome caused by deletions of the distal portion of the short arm of chromosome 4. Individuals with this disorder have prenatal onset of poor growth of all dimensions, along with neurological manifestations, developmental disability, and distinctive facial ...
Amy R. U. L. Calhoun +3 more
wiley +1 more source
Cuscuton gravity as a classically stable limiting curvature theory [PDF]
, 2020 Jerome Quintin, Daisuke Yoshida
openalex +1 more source
Yangian Symmetry in Integrable Quantum Gravity
, 1997 Dimensional reduction of various gravity and supergravity models leads to effectively two-dimensional field theories described by gravity coupled G/H coset space sigma-models. The transition matrices of the associated linear system provide a complete set
Korotkin, D., Samtleben, H.
core +2 more sources
Memory, Penrose limits and the geometry of gravitational shockwaves and gyratons
Journal of High Energy Physics, 2018 The geometric description of gravitational memory for strong gravitational waves is developed, with particular focus on shockwaves and their spinning analogues, gyratons.
Graham M. Shore
doaj +1 more source
Advanced Contactless Bioassembly Approaches: Leveraging Sound, Optical, and Magnetic Fields
Advanced NanoBiomed Research, EarlyView.This review explores innovative contactless bioassembly techniques driven by sound, light, and magnetic fields, which enable the precise organization of cells, biomaterials, and bioactive substances into complex 3D structures. These technologies, crucial for in vitro modeling and regenerative medicine, are examined in detail, highlighting their ...
Micaela Natta +4 more
wiley +1 more source
Local phase space and edge modes for diffeomorphism-invariant theories
Journal of High Energy Physics, 2018 We discuss an approach to characterizing local degrees of freedom of a subregion in diffeomorphism-invariant theories using the extended phase space of Donnelly and Freidel [36].
Antony J. Speranza
doaj +1 more source
Advanced NanoBiomed Research, EarlyView.Lanthanide‐based luminescence nanothermometry holds multifaceted potential for nanomedical applications, yet despite significant research advances, clinical translation of the engineered nanomaterials is still controversial and widely disputed. This is related to crucial nanotoxicological aspects that must be addressed at the preclinical level ...
Simona Premcheska +2 more
wiley +1 more source
Weak Classical-Gravity Source in Standpoint Cosmology [PDF]
arXiv, 1995 Guided by a linearized approximation to Einstein theory, an interim prescription for ``weak source of gravity'' - - in ``particle'' energy-momentum distributed along standpoint light cone - - is formulated for (classical) standpoint cosmology.
arxiv