Results 91 to 100 of about 486,911 (258)

Travelling the Two‐Way Street: Disrupting Colonial History

open access: yesNew Directions for Teaching and Learning, EarlyView.
ABSTRACT Using examples from the historical narratives about Kainai (Blackfoot Confederacy) painter Gerald Tailfeathers, this chapter challenges colonial narratives in Canadian history and historiography. Inspired by the author's participation in a Disrupting interview, the chapter explores both the author's personal history with colonial histories and
Kirk Niergarth
wiley   +1 more source

Vision at high latitudes: High sensitivity without specific boreal adaptations in photoreception in reindeer (Rangifer tarandus L.)

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The light climate at high latitudes, in particular the extended twilight of winter and the reduced diel variation in light level in midsummer and midwinter, potentially constrains visual function and the synchronisation of temporal organisation in polar species. In this
Nicholas J. C. Tyler   +3 more
wiley   +1 more source

Mitigating Complex Dust Foregrounds in Future Cosmic Microwave Background Polarization Experiments [PDF]

open access: yes, 2017
Polarized Galactic foregrounds are one of the primary sources of systematic error in measurements of the B-mode polarization of the cosmic microwave background (CMB).
B. Hensley, P. Bull
semanticscholar   +1 more source

EU Space Law and Earth's Boundaries: Integrating Environmental Impact Assessment and Corporate Due Diligence

open access: yesGlobal Policy, EarlyView.
ABSTRACT The European Union's proposed Space Law aims to establish a unified approach for sustainable space activities across the EU. While the EU's satellite constellations contribute to sustainability efforts, they can also have negative environmental impacts.
Elena Cirkovic, Vitali Braun
wiley   +1 more source

Tracing the History of Obscured Star Formation with the SIMBA Cosmological Galaxy Evolution Simulation

open access: yesThe Astrophysical Journal
We explore the cosmic evolution of the fraction of dust-obscured star formation predicted by the simba cosmological hydrodynamic simulations featuring an on-the-fly model for dust formation, evolution, and destruction.
Dhruv T. Zimmerman   +3 more
doaj   +1 more source

Corrected SFD: A More Accurate Galactic Dust Map with Minimal Extragalactic Contamination

open access: yesThe Astrophysical Journal, 2023
The widely used Milky Way dust-reddening map, the Schlegel–Finkbeiner–Davis (SFD) map, was found to contain extragalactic large-scale structure (LSS) imprints.
Yi-Kuan Chiang
doaj   +1 more source

AN APPARENT REDSHIFT DEPENDENCE OF QUASAR CONTINUUM: IMPLICATION FOR COSMIC DUST EXTINCTION? [PDF]

open access: yes, 2015
We investigate the luminosity and redshift dependence of the quasar continuum by means of the composite spectrum using a large non-BAL radio-quiet quasar sample drawn from the Sloan Digital Sky Survey.
Xiaoyi Xie, S. Shen, Z. Shao, J. Yin
semanticscholar   +1 more source

Compression‐Expansion: Miniaturization, Modularity, and Logistics Beyond Earth

open access: yesAmerican Anthropologist, EarlyView.
ABSTRACT If the Cold War space race culminated in a return to Earth, at present we are experiencing a renewed interest in space. Drawing on fieldwork among people working in the space sector in Sweden, this article focuses on some of the imaginaries underpinning this resurgence and the contemporary commercialization of space. Specifically, I hone in on
Chakad Ojani
wiley   +1 more source

COSMIC DUST AND COSMOLOGY

open access: yesPublications of The Korean Astronomical Society, 2015
Cosmology considers the Hubble redshift of galaxy light by the Doppler effect as proof the Universe has been expanding since the Big Bang. However, cosmic dust that permeates the Universe also redshifts galaxy light that if not corrected over-predicts the velocities of all astronomical measurements inferred by the Doppler effect.
openaire   +3 more sources

Weichselian–Holocene glacial history of the Sjuøyane archipelago, northern Svalbard

open access: yesBoreas, EarlyView.
To reconstruct the glacial history of Sjuøyane, we describe coastal sedimentary sections in Quaternary sediments and constrain their chronology by radiocarbon and optically stimulated luminescence ages. The sedimentary sections largely consist of shallow (glacio‐)marine and/or littoral sediments deposited during high relative sea levels.
Anders Schomacker   +9 more
wiley   +1 more source

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