Results 71 to 80 of about 447,630 (329)

Artin-Rees property and Artin-Rees rings

Mathematical communications, 2010
We study the problem of which ideals in Noetherian rings have the Artin-Rees property, and want to obtain new deals with this property from those for which we know that stisfy it. We show that the class AR-Ring_c, of all (Noetherian) Artn-Rees rings in which every prime ideal is moreover completely prime, is closed under localization at arbitrary ...
openaire   +4 more sources

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

The Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro, Marco Aurélio Gallo de França   +1 more
wiley   +1 more source

Repeating Nuclear Transients From Repeating Partial Tidal Disruption Events

Astronomische Nachrichten, EarlyView.
ABSTRACT Extragalactic nuclear transients that exhibit repeating outbursts can be modeled as the repeated dynamical interaction between bound stars and supermassive black holes (SMBHs). A subset of these transients, with recurrence timescales of months‐to‐years, have been explained as accretion flares from the repeated tidal stripping of a star by an ...
Ananya Bandopadhyay, Eric R. Coughlin, Julia Fancher, C. J. Nixon, Dheeraj R. Pasham   +4 more
wiley   +1 more source

REE Comparison Between Muncung Granite Samples and Their Weathering Products, Lingga Regency, Riau Islands [PDF]

, 2016
DOI:10.17014/ijog.3.3.149-161The increasing demand for Rare Earth Elements (REE) is related to the continous development of technology, and these elements are used in modern equipments.
Hutabarat, J. (Johannes), Irzon, R. (Ronaldo), Sendjaja, P. (Purnama), Syafri, I. (Ildrem)   +3 more
core   +3 more sources

Quantifying the Impact of Relativistic Precession on Tidal Disruption Event Light Curves

Astronomische Nachrichten, EarlyView.
ABSTRACT The tidal field of a black hole can turn a star into a gas stream whose orbit can precess, especially if the a black hole is rapidly spinning. In this work, we investigate the impact of precession on the light curves of tidal disruption events (TDE).
Diego Calderón, Ondřej Pejcha, Brian D. Metzger, Paul C. Duffell, Stephan Rosswog   +4 more
wiley   +1 more source

Closed formula for the relative entropy of entanglement [PDF]

, 2008
The long-standing problem of finding a closed formula for the relative entropy of entanglement (REE) for two qubits is addressed. A compact-form solution to the inverse problem, which characterizes an entangled state for a given closest separable state ...
Adam Miranowicz, M. Horodecki, Satoshi Ishizaka, T. C. Wei   +3 more
core   +1 more source

Hidden No More: Spotlight on Tidal Disruption Events in Active Galactic Nuclei

Astronomische Nachrichten, EarlyView.
ABSTRACT Tidal disruption events (TDEs) are typically discovered in previously quiescent galaxies. However, earlier studies have revealed a handful of TDEs occurring in pre‐existing active galactic nuclei (AGN). We discuss AT2019aalc, a promising TDE candidate in an AGN, and compare it to similar sources.
Patrik Milán Veres
wiley   +1 more source

Employability Programmes in higher education: Supporting students through tangible, transitional and transformational approaches

British Educational Research Journal, EarlyView.
Abstract As the UK higher education sector becomes increasingly market‐driven and focused on preparing students for the graduate labour market, universities must define and contextualise employability and their role in supporting students beyond academia.
Michael Maher, Ecem Karlidag‐Dennis, Richard Hazenberg, David Conway   +3 more
wiley   +1 more source

Rare-earth mineralization in ores of the Gurvunur apatite-magnetite deposit (Ozerny ore cluster, Western Transbaikalia)

Руды и металлы
The Gurvunur apatite-magnetite deposit is located within the Ozerny ore cluster in Western Transbaikalia. A peculiarity of this object is the presence of rare-earth mineralization in the ores. The main REE concentrator minerals include monazite, allanite,
Izvekova A. D., Damdinov B. B., Rampilov M. O.   +2 more
doaj   +1 more source

Comparison of heterotrophic bioleaching and ammonium sulfate ion exchange leaching of Rare Earth Elements from a Madagascan Ion-Adsorption Clay [PDF]

, 2018
Rare earth elements (REE) are considered to be a critical resource, because of their importance in green energy applications and the overdependence on Chinese imports. REE rich ion-adsorption deposits (IAD) result from tropical weathering of REE enriched
Barnett, Megan J., Gregory, Simon P., Palumbo-Roe, Barbara   +2 more
core   +2 more sources