Results 121 to 130 of about 1,984,506 (249)
Gravity Chains: Estimating Bilateral Trade Flows When Parts And Components Trade Is Important [PDF]
Trade is measured on a gross sales basis while GDP is measured on a net sales basis, i.e. value added. The rapid internationalisation of production in the last two decades has meant that gross trade flows are increasingly unrepresentative of the value ...
Daria Taglioni, Richard Baldwin
core +2 more sources
Modified gravity from the quantum part of the metric [PDF]
, 2014 It is shown that if a metric in quantum gravity can be decomposed as a sum of classical and quantum parts, then Einstein quantum gravity looks approximately like modified gravity with a nonminimal interaction between gravity and ...
Vladimir Dzhunushaliev +3 more
core +1 more source
Advanced Materials, EarlyView.A chemically defined PEG‐based microgel platform enables scalable, reproducible production of three‐dimensional microgel‐iPSC constructs in multiple sizes. The system is compatible with high‐throughput automation and supports human iPSC expansion and differentiation within a single construct, including directed differentiation into cardiac organoids ...
Laura Klasen +8 more
wiley +1 more source
Modified entropy from action principle
Physics Letters BWe propose a modified gravity theory by extending the Einstein-Hilbert action with an arbitrary function of the Ricci scalar and the Kretschmann scalar invariants.
A. Dehyadegari, A. Sheykhi
doaj +1 more source
General Aspects of Modified Theories of Gravity [PDF]
, 2011 The aim of this work is to investigate the both, some mathematical and physical general aspect of modified gravity, and, more specifically, the proprieties of viable, realistic models of modified gravity which can be used to reproduce the inflation and ...
Sebastiani, Lorenzo
core
Introduction to modified gravity
, 2020 This book reviews various modified gravity models, including those with modifications in the pure gravitational sector; those involving extra fields, that is, scalar-tensor and vector-tensor gravity theories; gravity models with Lorentz symmetry breaking;
Petrov, Albert
core +1 more source
Programmable Carrier‐Free All‐Enzyme Beads for Modular Continuous‐Flow Biocatalysis
Advanced Materials, EarlyView.Genetically encoded enzyme building blocks self‐assemble into monodisperse, carrier‐free protein beads via a droplet‐based formulation strategy. These programmable catalytic particles enable modular continuous‐flow biocatalysis, from single‐enzyme reactions to multi‐enzyme cascades and bead–bead coupled reactor systems.
Jennifer Kühne +12 more
wiley +1 more source
Pure-Connection Gravity and Anisotropic Singularities
Universe, 2018 In four space-time dimensions, there exists a special infinite-parameter family of chiral modified gravity theories. They are most properly described by a connection field, with space-time metric being a secondary and derived concept.
Kirill Krasnov, Yuri Shtanov
doaj +1 more source
Review of Emergent Gravity [PDF]
openThe idea that gravity may not be a fundamental interaction but rather an emergent phenomenon has gained increasing attention in recent decades. Building on the thermodynamical properties of spacetime horizons, various approaches suggest that Einstein’
GERVANI, LORENZO
core
Advanced Materials, EarlyView.Melt electrofibrillation (MEF) enables the fabrication of nanofibrillar PCL scaffolds with defined architectures that guide cellular alignment and retention during cartilage tissue engineering. Unlike conventional melt electrowriting, MEF consistently directs collagen type II‐rich extracellular matrix organization, providing a tunable platform to ...
Alba Pueyo Moliner +10 more
wiley +1 more source