Results 211 to 220 of about 431,604 (288)

Overview of the ESCAPE Dark Matter Test Science Project for astronomers. [PDF]

open access: yesOpen Res Eur
Pearson J   +3 more
europepmc   +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

Criteria for selecting the Paganin‐filter reconstruction parameter in X‐ray phase‐contrast tomography

open access: yesJournal of Synchrotron Radiation, EarlyView.
The development of a criterion for near‐optimal selection of the Paganin‐filter parameter based on noise power analysis measured via an image's noise power spectrum is described.The Paganin filter, widely employed in propagation‐based phase‐contrast X‐ray computed tomography with synchrotron light, attenuates phase effects and suppresses high‐frequency
Eduardo X. Miqueles   +3 more
wiley   +1 more source

Subgiants in NGC 188 reveal that rotationally induced mixing creates the main sequence Li-Dip. [PDF]

open access: yesNat Commun
Sun Q   +6 more
europepmc   +1 more source

New opportunities for grassland species in warming temperate winters

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Temperate winters are getting warmer, the length of the growing season is increasing and mid‐winter fluctuations of warm and freezing temperatures are more frequent. Although typically winter dormant, some herbaceous perennials can maintain or grow green leaves during ...
F. Curtis Lubbe   +3 more
wiley   +1 more source

Quantum walk with coherent multiple translations induces fast quantum gate operations. [PDF]

open access: yesLight Sci Appl
Zhang Y   +6 more
europepmc   +1 more source

‘Mere Amateurs’? Elementary Teachers and the Making of Scientific Authority in the British Child Study Movement

open access: yesHistory, EarlyView.
Abstract This article offers new perspectives on the relationship between elementary teaching, scientific expertise and the professionalization of the human sciences. Previous scholarship has demonstrated the ready existence of ‘amateur’ science societies in the nineteenth century where cross‐class exchanges were common.
Julia Gustavsson
wiley   +1 more source

Starspots as the origin of ultrafast drifting radio bursts from an active M dwarf. [PDF]

open access: yesSci Adv
Zhang J   +18 more
europepmc   +1 more source

SMART CITY CONTROL ROOMS: The Rewiring of Local Governance Landscapes in India

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract Smart city control rooms are prominent components of the smart city discourse. They embody a long‐standing dream to visualize and manage multiple urban processes in real time through the collation of data flows. Previous research has produced important insights into the design, construction and operation of these facilities.
Devika Prakash   +2 more
wiley   +1 more source

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