Results 1 to 10 of about 1,234,720 (380)

Solar Elemental Abundances [PDF]

open access: yesOxford Research Encyclopedia of Planetary Science, 2019
Solar elemental abundances, or solar system elemental abundances, refer to the complement of chemical elements in the entire Solar System. The Sun contains more than 99% of the mass in the solar system and therefore the composition of the Sun is a good ...
K. Lodders
semanticscholar   +4 more sources

Abundance in the Anthropocene [PDF]

open access: yesThe Sociological Review, 2019
Numerous attempts have been made to understand the Anthropocene in relation to overwhelming species and habitat loss. However, amidst these losses ecological niches have emerged and been taken as signs of resilience and hope: from mushrooms that flourish in damaged forests to urban wildlife in brownfield sites.
Giraud, E   +3 more
openaire   +2 more sources

Abundance and Equality

open access: yesFrontiers in Research Metrics and Analytics, 2022
The technology driven post-scarcity society is upon us. Ubiquitous technologies are eradicating scarcity in many industries. These macroscopic system trends are causing our economy to transition from relative scarcity to relative abundance. For many people in the world however, in both developed, developing, and underdeveloped countries, the notion of ...
Mauritz Kop, Mauritz Kop
openaire   +3 more sources

The Interaction Between Accretion from the Interstellar Medium and Accretion from the Evolved Binary Component in Barium Stars [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2018
The reanalysis of the previously published abundance pattern of mild barium star HD202109 (ζ Cyg) and the chemical compositions of 129 thin disk barium stars facilitated the search for possible correlations of different stellar parameters with second ...
Yeuncheol Jeong   +2 more
doaj   +1 more source

MODELING MICROBIAL ABUNDANCES AND DYSBIOSIS WITH BETA-BINOMIAL REGRESSION. [PDF]

open access: yesAnnals of Applied Statistics, 2019
Using a sample from a population to estimate the proportion of the population with a certain category label is a broadly important problem. In the context of microbiome studies, this problem arises when researchers wish to use a sample from a population ...
Bryan D. Martin, D. Witten, A. Willis
semanticscholar   +1 more source

Mass–Metallicity Trends in Transiting Exoplanets from Atmospheric Abundances of H2O, Na, and K [PDF]

open access: yesAstrophysical Journal, 2019
Atmospheric compositions can provide powerful diagnostics of formation and migration histories of planetary systems. We investigate constraints on atmospheric abundances of H2O, Na, and K, in a sample of transiting exoplanets using the latest ...
L. Welbanks   +5 more
semanticscholar   +1 more source

Meta-analysis reveals declines in terrestrial but increases in freshwater insect abundances

open access: yesScience, 2020
Local drivers of decline matter Recent studies have reported alarming declines in insect populations, but questions persist about the breadth and pattern of such declines. van Klink et al.
Roel van Klink   +5 more
semanticscholar   +1 more source

Retrieving Temperatures and Abundances of Exoplanet Atmospheres with High-resolution Cross-correlation Spectroscopy [PDF]

open access: yesAstronomical Journal, 2018
High-resolution spectroscopy (R ≥ 25,000) has recently emerged as one of the leading methods for detecting atomic and molecular species in the atmospheres of exoplanets.
M. Brogi, M. Line
semanticscholar   +1 more source

Chemical Composition of RM_1-390 - Large Magellanic Cloud Red Supergiant [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2017
A high resolution spectroscopic observation of the red supergiant star RM_1-390 in the Large Magellanic Cloud was made from a 3.6 m telescope at the European Southern Observatory. Spectral resolving power was R=20,000, with a signal-to-noise ratio S/N >
Alexander V. Yushchenko   +5 more
doaj   +1 more source

Elemental and molecular abundances in comet 67P/Churyumov-Gerasimenko [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
Comets are considered to be some of the most pristine and unprocessed Solar system objects accessible to in situ exploration. Investigating their molecular and elemental composition takes us on a journey back to the early period of our Solar system and
M. Rubin   +20 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy