Results 241 to 250 of about 3,596 (289)

A Bioregional Approach to Teaching Sustainability and Resilience Online

open access: yesNew Directions for Teaching and Learning, EarlyView.
ABSTRACT This chapter describes how the first graduate program in resilient and sustainable communities has evolved over the past decade, maintaining its bioregional approach to distance learning while adapting the curriculum to meet new challenges in the age of climate change.
Laird Christensen
wiley   +1 more source

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244Cm$$ {}^{244}\mathrm{Cm} $$ sources, and come with severe concerns on radiation safety and ...
Leandro Silveri   +14 more
wiley   +1 more source

Mapping structure–property relationships in a 6‐oxo‐verdazyl radical by variable pressure crystallography and density functional theory

open access: yesActa Crystallographica Section B, EarlyView.
For the first time, the structural response to pressure of a verdazyl radical crystal has been studied. Computational modelling revealed changes in electronic and magnetic properties as a result of a structural phase transition.The response of the 1,5‐tolyl‐3‐phenyl‐6‐oxo‐verdazyl radical (pTolOV) to pressure in the crystalline state has been ...
James R. Brookes   +7 more
wiley   +1 more source

Evidence for Alfvén waves powering auroral arc via a static electric potential drop. [PDF]

open access: yesNat Commun
Tian S   +10 more
europepmc   +1 more source

Scaling from microsite to landscape to resolve litter decomposition dynamics in globally extensive drylands

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop   +8 more
wiley   +1 more source

GOVERNING THE CLOUD: Infrastructural Statecraft and the Political Ecology of Digital Expansion in Oregon

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract Oregon's wave of data center and semiconductor projects shows how cloud capitalism reorganizes resource systems and territorial governance. Examining Amazon, Google, and Intel, the article traces how fiscal incentives, utility programs, and land‐use instruments are recalibrated to secure hyperscale loads.
Justin Kollar
wiley   +1 more source

Prebiotic organic compounds in samples of asteroid Bennu indicate heterogeneous aqueous alteration. [PDF]

open access: yesProc Natl Acad Sci U S A
Mojarro A   +6 more
europepmc   +1 more source

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