Results 31 to 40 of about 12,542 (267)

An integrable model of quantum gravity [PDF]

open access: yesPhysics Letters B, 1995
12 ...
Korotkin, D., Nicolai, H.
openaire   +4 more sources

Application of Radial Basis Functions for Height Datum Unification

open access: yesGeosciences, 2018
Local gravity field modelling demands high-quality gravity data as well as an appropriate mathematical model. Particularly in coastal areas, there may be different types of gravity observations available, for instance, terrestrial, aerial, marine gravity,
Ismael Foroughi   +3 more
doaj   +1 more source

Gravity modelling of the Tyrrhenian-Calabrian-Ionian subduction system

open access: yesFrontiers in Earth Science, 2023
This study provides a lithospheric-scale model along the Ionian Subduction zone in Southern Italy, contributing to the seismotectonic investigation of a region which is affected by relevant historical seismicity.
A. Akimbekova   +7 more
doaj   +1 more source

B-SPLINE CURVE MODELLING BASED ON NATURE INSPIRED ALGORITHMS

open access: yesAsia-Pacific Journal of Information Technology and Multimedia, 2016
Curve modelling is an essential aspect in the field of geometric modelling. Conventional curve modelling generates large errors due to the number of data points which is more than the number of control polygon vertices.
Norazwin Buang   +3 more
doaj   +1 more source

String-Generated Gravity Models [PDF]

open access: yesPhysical Review Letters, 1985
Expansion of supersymmetric string theory suggests that the leading quadratic curvature correction to the Einstein action is the Gauss-Bonnet invariant. We show that this model has both flat and anti-de Sitter space as solutions, but that the cosmological branch is unstable, because the graviton becomes a ghost there: The theory solves its own ...
Boulware, David G., Deser, S.
openaire   +3 more sources

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS 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   +4 more
wiley   +1 more source

Assessment of marine geoid models by ship-borne GNSS profiles

open access: yesGeodesy and Cartography, 2017
Even though the entire Baltic Sea is included in previous geoid modelling projects such as the NKG2015 and EGG07, the accuracy of contemporary geoid models over marine areas remains unknown, presumably being offshore around 15–20 cm. An important part of
Sander Varbla   +3 more
doaj   +1 more source

Benchmark data for verifying background model implementations in orbit and gravity field determination software [PDF]

open access: yesAdvances in Geosciences, 2020
In the framework of the COmbination Service for Time-variable Gravity fields (COST-G) gravity field solutions from different analysis centres are combined to provide a consolidated solution of improved quality and robustness to the user. As in many other
M. Lasser   +11 more
doaj   +1 more source

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

open access: yesMolecular 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   +11 more
wiley   +1 more source

Coastal marine gravity modelling from satellite altimetry – case study in the Mediterranean

open access: yesJournal of Geodetic Science, 2021
The coastal marine gravity field is not well modelled due to poor data coverage. Recent satellite altimeters provide reliable altimetry observations near the coast, filling the gaps between the open ocean and land.
Abulaitijiang Adili   +3 more
doaj   +1 more source

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