Results 131 to 140 of about 1,307,888 (282)

Robust reanalysis of the electron radiation belt dynamics for physics driven space climatology applications

open access: yesJournal of Space Weather and Space Climate
Specification models for radiation belts are essential for the design of radiation resistant, long-lasting spacecraft. Using the available in-situ measurements allows these models to virtually describe the average space radiation environment.
Dahmen Nour   +5 more
doaj   +1 more source

Ceramic Raw Materials and Technological Choices in Iron Age Tyre (Lebanon): A Multiproxy, Fabric‐Based Approach

open access: yesArchaeometry, EarlyView.
ABSTRACT This study presents a systematically integrated, multiproxy characterisation of Iron Age ceramics from Tyre (Lebanon). Ninety‐nine ceramic samples from stratified Iron Age contexts on Tyre's Acropolis, together with a small Late Bronze Age and raw‐clay reference set, were analysed using petrography, microfossil identification, X‐ray ...
Francisco J. Núñez Calvo   +5 more
wiley   +1 more source

Testing the morphology‐ and intuition‐based taxonomic hypotheses using integrative approach: unexpected discovery of triplet of sibling species within a widespread Eurasian butterfly, Hyponephele lycaon

open access: yesCladistics, EarlyView.
Abstract In well‐studied groups of organisms, the taxonomic landscape can be very complex, with several alternative classifications describing diversity within the same set of populations. For example, three hypotheses have previously been proposed to describe the taxonomy of the common and widespread Eurasian Dusky Meadow Brown butterfly, Hyponephele ...
Elena A. Pazhenkova   +1 more
wiley   +1 more source

Resonant Scattering of Radiation Belt Electrons by Saturnian Z‐Mode Waves

open access: yesGeophysical Research Letters
We investigated the resonant interactions between Z‐mode waves and radiation belt electrons at Saturn via constructing an empirical model of the frequency spectral and wave normal angle distributions of 5 and 20 kHz Saturnian Z‐mode waves using Cassini ...
Xing Cao   +6 more
doaj   +1 more source

Regional and local divergence in welfare provision in England and Wales, 1776–1815

open access: yesThe Economic History Review, EarlyView.
Abstract This article uses the township‐level data on welfare expenditure and provision gathered by parish officers in England and Wales at three points between 1776 and 1815 to illuminate regional and local differences during the period. These data have been linked to geographic information system (GIS) mapping systems, facilitating the mapping of ...
John Broad
wiley   +1 more source

The effect of positive reinforcement on adolescent seat belt use [PDF]

open access: yes, 2002
Plan BSeveral different programs nationwide have attempted to increase seat belt use among young drivers. Programs producing increased seat belt use characteristically have strong student involvement, incentives, and educational components.
Kirby, Kevin W.
core  

Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook   +38 more
wiley   +1 more source

Quasi‐Trapped Zebra Stripes: Radial Transport Driven by Dual‐Pulse Electric Fields

open access: yesGeophysical Research Letters
Energetic electron spectra in Earth's inner radiation belt often exhibit regular stripe‐like features, known as “zebra stripes,” which are typically attributed to the drift motion of stably‐trapped electrons disturbed by electric field perturbations ...
Ziyang Wang   +5 more
doaj   +1 more source

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