Results 21 to 30 of about 165,833 (236)

Nonequilibrium thermodynamics of circulation regimes in optically-thin, dry atmospheres [PDF]

open access: yes, 2013
An extensive analysis of an optically-thin, dry atmosphere at different values of the thermal Rossby number Ro and of the Taylor number Ff is per- formed with a general circulation model by varying the rotation rate {\Omega} and the surface drag {\tau ...
Adams   +105 more
core   +2 more sources

The Oxygen Isotopic Composition of Samples Returned from Asteroid Ryugu with Implications for the Nature of the Parent Planetesimal

open access: yesThe Planetary Science Journal, 2023
We present oxygen isotopic analyses of fragments of the near-Earth C _b -type asteroid Ryugu returned by the Hayabusa2 spacecraft that reinforce the close correspondence between Ryugu and CI chondrites.
Haolan Tang   +89 more
doaj   +1 more source

State foreign trade policy as an object of study in the scientific works of Ukrainian and foreign researchers

open access: yesЕкономіка, управління та адміністрування, 2020
The relevance of the research topic is related to the growth of publishing activity in the field of foreign trade policy and is based on the analysis of such publications in the world's largest abstract database Scopus.
O.V. Oliinyk, V.V. Ksendzuk
doaj   +1 more source

The Magnesium Isotope Composition of Samples Returned from Asteroid Ryugu

open access: yesThe Astrophysical Journal Letters, 2023
The nucleosynthetic isotope composition of planetary materials provides a record of the heterogeneous distribution of stardust within the early solar system.
Martin Bizzarro   +89 more
doaj   +1 more source

Challenges Regionalizing Methane Emissions Using Aquatic Environments in the Amazon Basin as Examples

open access: yesFrontiers in Environmental Science, 2022
Key challenges to regionalization of methane fluxes in the Amazon basin are the large seasonal variation in inundated areas and habitats, the wide variety of aquatic ecosystems throughout the Amazon basin, and the variability in methane fluxes in time ...
John M. Melack   +12 more
doaj   +1 more source

The identification and biogeochemical interpretation of fossil magnetotactic bacteria [PDF]

open access: yes, 2008
Magnetotactic bacteria, which most commonly live within the oxic-anoxic transition zone (OATZ) of aquatic environments, produce intracellular crystals of magnetic minerals, specifically magnetite or greigite.
Kirschvink, Joseph L., Kopp, Robert E.
core   +1 more source

Large-scale open-source three-dimensional growth curves for clinical facial assessment and objective description of facial dysmorphism

open access: yesScientific Reports, 2021
Craniofacial dysmorphism is associated with thousands of genetic and environmental disorders. Delineation of salient facial characteristics can guide clinicians towards a correct clinical diagnosis and understanding the pathogenesis of the disorder ...
Harold S. Matthews   +14 more
doaj   +1 more source

Gliese 581d is the first discovered terrestrial-mass exoplanet in the habitable zone [PDF]

open access: yes, 2011
It has been suggested that the recently discovered exoplanet GJ581d might be able to support liquid water due to its relatively low mass and orbital distance.
Goody   +9 more
core   +3 more sources

Earth’s polar night boundary layer as an analogue for dark side inversions on synchronously rotating terrestrial exoplanets [PDF]

open access: yes, 2020
A key factor in determining the potential habitability of synchronously rotating planets is the strength of the atmospheric boundary layer inversion between the dark side surface and the free atmosphere.
Elvidge, Andrew   +3 more
core   +2 more sources

A generalized bayesian inference method for constraining the interiors of super Earths and sub-Neptunes [PDF]

open access: yes, 2016
We aim to present a generalized Bayesian inference method for constraining interiors of super Earths and sub-Neptunes. Our methodology succeeds in quantifying the degeneracy and correlation of structural parameters for high dimensional parameter spaces ...
Alibert, Y.   +7 more
core   +2 more sources

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