Results 191 to 200 of about 52,001 (350)

Out There No One Has a Right to Die

open access: yesBioethics, EarlyView.
ABSTRACT The eventual goal of space exploration is to colonize exoplanets and their moons outside our solar system. This is a dangerous and immoral endeavour. The extraterrestrial life forms encountered would be hostile, vulnerable or both, and the descendants of the original pioneers would be involuntarily exposed to hazardous conditions and ...
Matti Häyry
wiley   +1 more source

Dynamical Origin of the Vertical Metallicity Gradient of the Milky Way Bulge

open access: yesThe Astrophysical Journal
A vertical metallicity gradient (VMG) in the Milky Way bulge is well-established. Yet, its origin has not been fully understood under the Galactic secular evolution scenario.
Bin-Hui Chen, Juntai Shen, Zhong Liu
doaj   +1 more source

Cobalt and copper abundances in 56 Galactic bulge red giants [PDF]

open access: bronze, 2020
H. Ernandes   +7 more
openalex   +1 more source

A limpet's eye view of post‐glacial isostasy: fixed biological indicators provide new sea‐level index points for the Mid‐Holocene relative highstand in eastern Northern Ireland

open access: yesBoreas, EarlyView.
Bioerosional scars made by limpets (Patella) on a cliff in Co. Antrim, Northern Ireland, indicate a Mid‐Holocene RSL of +7.8±0.55 m relative to local mid‐tide level today. This is higher than previous empirical data for the region and extrapolated levels from raised shorelines in Scotland but consistent with some recent GIA models.
Michael J. Simms, Paula J. Reimer
wiley   +1 more source

The Hubble Space Telescope UV legacy survey of galactic globular clusters – XVI. The helium abundance of multiple populations [PDF]

open access: bronze, 2018
A. P. Milone   +18 more
openalex   +1 more source

The commercialization of labour markets: Evidence from wage inequality in the Middle Ages

open access: yesThe Economic History Review, EarlyView.
Abstract This paper moves beyond the focus on ‘average’ wage trends in pre‐industrial economies by examining the broad diversity of pay rates and forms of remuneration across occupations and regions in medieval England. We find that whilst some workers enjoyed substantial growth in wage rates after the Black Death, there was a large group who ...
Jordan Claridge   +2 more
wiley   +1 more source

Winter‐active spiders (Clubiona) have a hyperactive antifreeze protein with a unique beta‐solenoid fold

open access: yesThe FEBS Journal, EarlyView.
Antifreeze proteins from winter‐active spiders were purified using their affinity for ice. After LC–MSMS characterization, corresponding transcripts were identified. The antifreeze protein folds as a β‐solenoid with a large flat ice‐binding site on one surface and can bind to ice crystals and prevent their growth at −4 °C.
Laurie A. Graham   +3 more
wiley   +1 more source

Abundance structure of the Galactic disk

open access: yes, 2006
8 pages, 6 figures, using the Mem SA It style file (included). Will be published as part of the proceedings from Joint Discussion 13 (Large Surveys) helt at the IAU Gen Assembly in Prague ...
openaire   +2 more sources

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