Results 31 to 40 of about 87,920 (266)

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 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

Spatial and single‐nuclei transcriptomics reveals idiosyncratic and generic patterns in papillary and anaplastic thyroid cancers

Molecular Oncology, EarlyView.
Matched spatial transcriptomics and single‐nuclei RNA‐seq were generated for anaplastic and BRAFV600E papillary thyroid cancers revealing generic and tumor‐specific states occurring in cancer cells and in the tumor microenvironment. In this context, cancer dedifferentiation mirrored organoid maturation through ordered thyroid marker gain/loss ...
Adrien Tourneur, Joel Rodrigues Vitória, Manuel Saiselet, Ligia Craciun, Denis Larsimont, Anne Lefort, Frédérick Libert, Carine Maenhaut, Sabine Costagliola, Maxime Tarabichi, Mirian Romitti, Vincent Detours   +11 more
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

Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis

FEBS Open Bio, EarlyView.
Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho, Rebecca Schmitt, Aneesha Dasgupta, Alexandra Ducharme, Jason Doles   +4 more
wiley   +1 more source