Results 11 to 20 of about 627,744 (337)

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

Measuring Abundance with Abundancy Index

open access: yes, 2021
A positive integer $n$ is called perfect if $ σ(n)=2n$, where $σ(n)$ denote the sum of divisors of $n$. In this paper we study the ratio $\frac{σ(n)}{n}$. We define the function Abundancy Index $I:\mathbb{N} \to \mathbb{Q}$ with $I(n)=\frac{σ(n)}{n}$.
Guha, Kalpok, Ghosh, Sourangshu
openaire   +2 more sources

Abundance of Infinite Switching

open access: yesSIAM Journal on Applied Dynamical Systems, 2023
33 pages, 8 ...
Alexandre A. P. Rodrigues, Luísa Castro
openaire   +3 more sources

On Generalised Abundance, II [PDF]

open access: yesPeking Mathematical Journal, 2019
The goal of this paper is to make a striking connection between several central conjectures in algebraic geometry: the Nonvanishing Conjecture, the Abundance Conjecture and the Semiampleness Conjecture for nef line bundles on K -trivial varieties.
Vladimir Lazić, Thomas Peternell
openaire   +4 more sources

MANGANESE ABUNDANCES IN THE ATMOSPHERE OF CLUMP GIANTS

open access: yesOdessa Astronomical Publications, 2013
The manganese abundances was determined in the atmospheres of clump giants stars whose election was made earlier based on their chemical composition and evolutionary tracks. The spectra of the studied stars were obtained using the facilities of the 1.93m
T. I. Gorbaneva
doaj   +1 more source

Close Binaries and the Abundance Discrepancy Problem in Planetary Nebulae

open access: yesGalaxies, 2018
Motivated by the recent establishment of a connection between central star binarity and extreme abundance discrepancies in planetary nebulae, we have carried out a spectroscopic survey targeting planetary nebula with binary central stars and previously ...
R. Wesson   +4 more
doaj   +1 more source

Non-LTE Abundances of Magnesium, Aluminum and Sulfur in OB Stars Near the Solar Circle [PDF]

open access: yes, 2002
Non-LTE abundances of magnesium, aluminum and sulfur are derived for a sample of 23 low-v \sin i stars belonging to six northern OB associations of the Galactic disk within 1 kpc of the Sun.
Afflerbach   +21 more
core   +3 more sources

Fe I and Fe II Abundances of Solar-Type Dwarfs in the Pleiades Open Cluster [PDF]

open access: yes, 2010
We have derived Fe abundances of 16 solar-type Pleiades dwarfs by means of an equivalent width analysis of Fe I and Fe II lines in high-resolution spectra obtained with the Hobby - Eberly Telescope and High Resolution Spectrograph.
Adele L. Plunkett   +7 more
core   +4 more sources

Inequality in abundance

open access: yesFrontiers in Research Metrics and Analytics, 2022
With technological advance has come the possibility of a new era of abundance. Technologies like 3D printing and robotics promise to lower the costs of production and distribution of goods and services, presumably making these goods and services readily available to those across income and wealth spectrums. This undoubtedly is a good thing.
openaire   +3 more sources

Theoretical Predictions of Surface Light Element Abundances in Protostellar and Pre-Main Sequence Phase

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Theoretical prediction of surface stellar abundances of light elements–lithium, beryllium, and boron–represents one of the most interesting open problems in astrophysics.
E. Tognelli   +14 more
doaj   +1 more source

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