Results 21 to 30 of about 1,045,091 (343)
19 pages, 1 figure. To appear in New Astronomy, for the David N.
Jean Audouze+12 more
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Abundance for Kähler threefolds [PDF]
52 pages, modified exposition according to changes in arXiv preprint 1304 ...
Campana, Frédéric+2 more
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Diversity and abundance of diatoms (Bacillariophyceae) in sediments of the south coast of Iran [PDF]
In this stud, the diversity and abundance of benthic diatoms were evaluated in 9 stations located in Persian Gulf (Sirik) and Oman Sea (Gwatar, Abshirinkon) in winter and spring of 1394 -1395.
Gilan Attaran Fariman+2 more
doaj
Abundance and abundance change in the world's parrots [PDF]
Estimates of population density and abundance change (differences in density or encounter rates across land uses or time periods) form the cornerstone of much of our knowledge of species' responses to environmental conditions, extinction risks and potential conservation actions. Gathering baseline data on abundance of the world's c. 10 000 bird species
Kay Royle, Stuart J. Marsden
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Impact of crop management systems on soil nematode communities in South Brazil
The analysis of nematode communities allows inferring consequences of management practices on the soil food web. We studied the taxonomic structure of nematode communities in preserved areas of the Atlantic forest (native forest = NF) in Ponta Grossa ...
Andressa Cristina Zamboni Machado+4 more
doaj +1 more source
Interpretation of Abundance Ratios [PDF]
In this paper we discuss abundance ratios and their relation to stellar nucleosynthesis and other parameters of chemical evolution models, reviewing and clarifying the correct use of the observed abundance ratios in several astrophysical contests. In particular, we start from the well known fact that abundance ratios depend on stellar yields, initial ...
MATTEUCCI, MARIA FRANCESCA, CHIAPPINI C.
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Externalities, scarcity, and abundance
IntroductionDo externalities work and matter differently in a world of scarcity vs. a world of abundance? In this article, we critically examine the economic phenomena of externalities. The concept of externality, an important idea in economics and law, is useful in exploring the complex and dynamic relationships between resource supply and human ...
Frischmann, Brett M, Ramello, Giovanni B
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Planetary Nebulae: Abundances and Abundance Gradients [PDF]
In this work, a review is given of some recent results and problems involved in the determination of chemical abundances of galactic planetary nebulae, particularly regarding disk and bulge objects.
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An abundance theorem for generalised pairs [PDF]
We prove the finiteness of $B$-representations of generalised log canonical pairs. As a consequence, we prove that, the (relative) abundance for a generalised semi-log canonical pair is implied by the abundance for its normalisation. Furthermore, we obtain an abundance theorem for generalised dlt pairs with abundant data, which is a natural inductive ...
arxiv
The digitalisation of content combined with a global network for delivery and an open system for sharing has seen radical changes in many industries. The economic model which has underpinned many content based industries has been based on an assumption of scarcity.
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