Results 41 to 50 of about 91,030 (266)

Watching the Effects of Gravity. Vestibular Cortex and the Neural Representation of “Visual” Gravity

Frontiers in Integrative Neuroscience, 2021
Gravity is a physical constraint all terrestrial species have adapted to through evolution. Indeed, gravity effects are taken into account in many forms of interaction with the environment, from the seemingly simple task of maintaining balance to the ...
Sergio Delle Monache, Sergio Delle Monache, Iole Indovina, Iole Indovina, Myrka Zago, Myrka Zago, Myrka Zago, Elena Daprati, Elena Daprati, Elena Daprati, Francesco Lacquaniti, Francesco Lacquaniti, Francesco Lacquaniti, Gianfranco Bosco, Gianfranco Bosco, Gianfranco Bosco   +15 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Testing theories of gravity with planetary ephemerides

Living Reviews in Relativity
We describe here how planetary ephemerides are built in the framework of General Relativity and how they can be used to test alternative theories. We focus on the definition of the reference frame (space and time) in which the planetary ephemeris is ...
Agnès Fienga, Olivier Minazzoli
doaj   +1 more source

Exact Expressions for the Pericenter Precession Caused by Some Dark Matter Distributions and Constraints on Them from Orbital Motions in the Solar System, in the Double Pulsar and in the Galactic Center

Galaxies, 2013
We analytically calculate the secular precession of the pericenter of a test particle orbiting a central body surrounded by a continuous distribution of Dark Matter (DM) by using some commonly adopted spherically symmetric density profiles for it.
Lorenzo Iorio
doaj   +1 more source

Improving the Detection Accuracy of Underwater Obstacles Based on a Novel Combined Method of Support Vector Regression and Gravity Gradient

Remote Sensing, 2023
Underwater gravity gradient detection techniques are conducive to ensuring the safety of submersible sailing. In order to improve the accuracy of underwater obstacle detection based on gravity gradient detection technology, this paper studies the gravity
Tengda Fu, Wei Zheng, Zhaowei Li, Yifan Shen, Huizhong Zhu, Aigong Xu   +5 more
doaj   +1 more source

Experimental and theoretical study of gravity-driven falling plates

International Journal of Micro Air Vehicles
This research investigates the fluid-structure interaction phenomenon of gravity-driven falling rigid plates through a combination of experimental and theoretical approaches. Plates of varying dimensions and densities are systematically examined to explore the influence of non-dimensional parameters, including the Reynolds number (
Leonardo Saenz, Ruijun Tian, Jianqiang Jiao, Fangjun Shu   +3 more
openaire   +1 more source

Experimental study of entrainment and interface dynamics in a gravity current [PDF]

Experiments in Fluids, 2013
Experiments in Fluids, 54 (5)
Krug, Dominik, Holzner, Markus, Lüthi, Beat, Wolf, Marc, Kinzelbach, Wolfgang; id_orcid0000-0002-8230-5953, Tsinober, Arkady   +5 more
openaire   +2 more sources

Attenuating surface gravity waves with an array of submerged resonators: an experimental study

Journal of Fluid Mechanics, 2023
We report on an experimental study of a device comprising an array of submerged, inverted and periodic cylindrical pendula (resonators), whose objective is the attenuation of surface gravity waves. The idea is inspired by the concept of metamaterials, i.e. engineered structures designed to interact with waves and manipulate their propagation properties.
Lorenzo, Matteo, Pezzutto, Paolo, De Lillo, Filippo, Ventrella, Francesco Michele, De Vita, Francesco, Bosia, Federico, Onorato, Miguel   +6 more
openaire   +6 more sources

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

FEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

An Integrative Model of Plant Gravitropism Linking Statoliths Position and Auxin Transport

Frontiers in Plant Science, 2021
Gravity is a major cue for the proper growth and development of plants. The response of plants to gravity implies starch-filled plastids, the statoliths, which sediments at the bottom of the gravisensing cells, the statocytes.
Nicolas Levernier, Olivier Pouliquen, Yoël Forterre   +2 more
doaj   +1 more source