Results 101 to 110 of about 52,268 (222)
Subterranean environments contribute to three‐quarters of classified ecosystem services
Biological Reviews, Volume 101, Issue 3, Page 1582-1605, June 2026.ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola +30 more
wiley +1 more source
Abundances in Damped Lyα Galaxies [PDF]
, 2006 Damped Lyα galaxies provide a sample of young galaxies where chemical abundances can be derived throughout the whole universe with an accuracy comparable to that for the local universe. Despite a large spread in redshift, HI column density and metallicity, DLA galaxies show a remarkable uniformity in the elemental ratios rather suggestive of similar ...
openaire +1 more source
The first galaxies: clues from element abundances [PDF]
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2000 15 pages, LaTex, 8 Postscript Figures.
openaire +2 more sources
The Astrophysical JournalWe present the elemental abundances and ages of 19 massive quiescent galaxies at z ∼ 1.4 and z ∼ 2.1 from the Keck Heavy Metal Survey. The ultradeep LRIS and MOSFIRE spectra were modeled using a full-spectrum stellar population fitting code with variable
Aliza G. Beverage +13 more
doaj +1 more source
MMT observations of new extremely metal-poor emission-line galaxies in the Sloan Digital Sky Survey
, 2007 We present 6.5-meter MMT spectrophotometry of 20 H II regions in 13 extremely metal-poor emission-line galaxies selected from the Data Release 5 of the Sloan Digital Sky Survey to have [O III] 4959/Hbeta < 1 and [N II] 6583/Hbeta < 0.05.
Stasinska G. +2 more
core +1 more source
Terrestrial Analogs to Titan for Geophysical Research
Reviews of Geophysics, Volume 64, Issue 2, June 2026.Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon +21 more
wiley +1 more source
Heavy‐Element Abundances in Blue Compact Galaxies
The Astrophysical Journal, 1999 37 pages, 5 EPS figures, to appear in ApJ, February ...
Izotov, Y. I., Thuan, T. X.
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Minor epic: Notes toward a different “Anthropoetry”
Anthropology and Humanism, Volume 51, Issue 1, June 2026.Abstract Anthropologists have often turned to poetry as a means of accessing emotional registers of which conventional academic prose is unable to avail. In doing so, they have tacitly conflated poetry with lyric poetry, today probably the most widely practiced poetic genre, associated in particular with the expression of inner feelings and subjectival
Stuart McLean
wiley +1 more source
Abundance of Substructure in Clusters of Galaxies
The Astrophysical Journal, 2004 It is widely recognized that cold dark matter models predict abundant dark matter substructure in halos of all sizes. Galaxy-galaxy lensing provides a unique opportunity to directly measure the presence and the mass of such substructures in clusters of galaxies.
Natarajan, P., Springel, V.
openaire +3 more sources
Evidence of Gaia Enceladus Experiencing at Least Two Passages around the Milky Way
The Astrophysical Journal LettersOne of the major recent breakthroughs has been the discovery of the last major merger to happen in the history of the Milky Way. Around 10 Gyr ago, the galaxy Gaia Enceladus with an estimated ∼10% of the Milky Way mass, fell into the potential of our ...
Ása Skúladóttir +6 more
doaj +1 more source