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The covariant formulation of f(T) gravity
We show that the well-known problem of frame dependence and violation of local Lorentz invariance in the usual formulation of f(T) gravity is a consequence of neglecting the role of spin connection.…
f(T) teleparallel gravity and cosmology
- Yi-Fu Cai, S. Capozziello, M. De Laurentis, E. Saridakis
- PhysicsReports on progress in physics. Physical Society
- 24 November 2015
The role of torsion in gravity has been extensively investigated along the main direction of bringing gravity closer to its gauge formulation and incorporating spin in a geometric description, and various torsional constructions, from teleparallel, to Einstein-Cartan, and metric-affine gauge theories are reviewed.
Protein crystallization: from purified protein to diffraction-quality crystal
A guide for the non-expert to screen for appropriate crystallization conditions and optimize diffraction-quality crystal growth in X-ray crystallography.
Barrow holographic dark energy
- E. Saridakis
- PhysicsPhysical Review D
- 8 May 2020
We formulate Barrow holographic dark energy, by applying the usual holographic principle at a cosmological framework, but using the Barrow entropy instead of the standard Bekenstein-Hawking one. The…
Modified cosmology through spacetime thermodynamics and Barrow horizon entropy
- E. Saridakis
- PhysicsJournal of Cosmology and Astroparticle Physics
- 1 June 2020
We present modified cosmological scenarios that arise from the application of the “gravity-thermodynamics” conjecture, using the Barrow entropy instead of the usual Bekenstein-Hawking one. The former…
Experiment and theory for heterogeneous nucleation of protein crystals in a porous medium.
- N. Chayen, E. Saridakis, R. Sear
- Materials ScienceProceedings of the National Academy of Sciences…
- 17 January 2006
A theory for nucleation on disordered porous media and its experimental testing and validation using a mesoporous bioactive gel-glass opens up the scope for the rational design of nucleants, leading to alternative means of controlling crystallization.
Matter bounce cosmology with the f(T) gravity
We show that the f(T) gravitational paradigm, in which gravity is described by an arbitrary function of the torsion scalar, can provide a mechanism for realizing bouncing cosmologies, thereby…
Teleparallel equivalent of Gauss-Bonnet gravity and its modifications
Inspired by the teleparallel formulation of General Relativity, whose Lagrangian is the torsion invariant T, we have constructed the teleparallel equivalent of Gauss-Bonnet gravity in arbitrary…
Rationally designed inhibitor targeting antigen-trimming aminopeptidases enhances antigen presentation and cytotoxic T-cell responses
- E. Zervoudi, E. Saridakis, E. Stratikos
- BiologyProceedings of the National Academy of Sciences
- 18 November 2013
Antigen processing and presentation assays in HeLa and murine colon carcinoma cells showed that these inhibitors induce increased cell-surface antigen presentation of transfected and endogenous antigens and enhance cytotoxic T-cell responses, indicating that these enzymes primarily destroy epitopes in those systems.
Porous nucleating agents for protein crystallization
This work presents a protocol for controlling the nucleation of protein crystals that is applicable to a wide variety of nucleation-inducing substances and provides a unique means for optimizing the diffraction quality of crystals, as well as for discovering new crystallization conditions.