Results 11 to 20 of about 301,615 (262)

Monthly quasi-periodic eruptions from repeated stellar disruption by a massive black hole [PDF]

open access: yesNature Astronomy, 2023
Archival X-ray data reveal quasi-periodic eruptions (QPEs) in binary systems on timescales of several hours to several months. The discovery of QPEs in Swift J0230 data with periods of weeks may help bridge the gap in our understanding of their origins ...
P. A. Evans   +25 more
semanticscholar   +1 more source

Incoming Metaverses: Digital Mirrors for Urban Planning

open access: yesUrban Planning, 2022
The planning process has been, arguably, slow to adapt and adopt new technologies: It is perhaps only now that it is starting to move into a more digitally focused era.
Andrew Hudson-Smith
doaj   +1 more source

Ethnogenesis as Solitaire Game: On the Origin of Samoyeds and Ugrians

open access: yesEtnografia, 2023
of the amount of empirical and theoretical work performed, its methodological tools, and the breadth of the covered sources. In the 18th century, the conceptual palette of ethnogenesis became one of the first accomplishments of the emerging science of ...
Golovnev A.
semanticscholar   +1 more source

Identification of carbon dioxide in an exoplanet atmosphere [PDF]

open access: yesNature, 2022
Carbon dioxide (CO_2) is a key chemical species that is found in a wide range of planetary atmospheres. In the context of exoplanets, CO_2 is an indicator of the metal enrichment (that is, elements heavier than helium, also called ‘metallicity’)^ 1 – 3 ,
The Jwst Transiting Exoplanet Community Early Release Ahrer   +363 more
semanticscholar   +1 more source

LUDOTECA: ORÍGENES DE UN ESPACIO DE JUEGO CON NOMBRE PROPIO [PDF]

open access: yesCabás, 2010
Este artículo recorre los orígenes de las ludotecas como instituciones de juego y su particular desarrollo en la década de los80 en el Estado Español. Las transformaciones sociales que ha vivido España a lo largo de las últimas décadas ha hecho más que ...
Ruiz de Peralta, N. R.
doaj   +1 more source

Two-dimensional adaptive dynamics of evolutionary public goods games: finite-size effects on fixation probability and branching time

open access: yesRoyal Society Open Science, 2021
Public goods games (PGGs) describe situations in which individuals contribute to a good at a private cost, but others can free-ride by receiving a share of the public benefit at no cost.
Brian Johnson   +2 more
doaj   +1 more source

DARWIN – a next-generation liquid xenon observatory for dark matter and neutrino physics [PDF]

open access: yesInternational Conference on Rebooting Computing, 2021
The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leading technology to cover the available parameter space for weakly ...
J. Aalbers   +499 more
semanticscholar   +1 more source

ONTOLOGICAL SYSTEM OF BARDAISAN – FREE WILL AND “ETHICAL COSMOLOGY”

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Філософія, філософські перипетії, 2022
The article is devoted to the reconstruction of the ontological system of Bardaisan. A specific view of ethics as an ontological construct is characteristic of the Middle Eastern philosophical tradition.
Mykyta Artemenko
doaj   +1 more source

Mass concentration for Ergodic Choquard Mean-Field Games [PDF]

open access: yesE S A I M: Control, Optimisation and Calculus of Variations, 2022
We study concentration phenomena in the vanishing viscosity limit for second-order stationary Mean-Field Games systems defined in the whole space RN with Riesz-type aggregating coupling and external confining potential.
C. Bernardini
semanticscholar   +1 more source

The territorial nature of aggression in biofilms

open access: yesFrontiers in Microbiology, 2022
Microbial conflicts have a particularly aggressive nature. In addition to other chemical, mechanical, and biological weapons in their repertoire, bacteria have evolved bacteriocins, which are narrow-spectrum toxins that kill closely related strains ...
Ihab Hashem, Jan F. M. Van Impe
doaj   +1 more source

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