Results 121 to 130 of about 1,152,571 (289)

Empirically Estimated Electron Lifetimes in the Earth's Radiation Belts: Van Allen Probe Observations. [PDF]

Geophys Res Lett, 2020
Claudepierre SG, Ma Q, Bortnik J, O'Brien TP, Fennell JF, Blake JB.   +5 more
europepmc   +1 more source

Beyond Sexual Selection: Natural Selection Related Camouflage and Thermoregulation Shape Sexual Color Dimorphism in Diploderma Lizards

Integrative Zoology, EarlyView.
Integrating comparative spectrometry, image analysis, and thermal modeling, we reveal that (1) females optimize crypsis via background matching, (2) males prioritize high‐contrast disruptive patterning at a significant thermoregulatory cost (reduced solar heat gain), and (3) habitat‐specific monomorphism in Diploderma slowinskii underscores ecological ...
Yuning Cao, Lin Shi, Yin Qi
wiley   +1 more source

Statistical modelling of the variability of the electron radiation belts for long-term environment specification

Journal of Space Weather and Space Climate
Specifying the electron radiation belts environment is crucial to enable satellite manufacturers and designers to adequately account for its harsh conditions, thereby mitigating risks of unforeseen malfunctions, data loss, and catastrophic failures that ...
Brunet Antoine, Sicard Angélica, Papadimitriou Constantinos, Dahmen Nour, Evans Hugh   +4 more
doaj   +1 more source

The Earliest Feathers from the Lower Cretaceous Dabeigou Formation of North Hebei: Implications for the Early Evolution of the Jehol Biota

Integrative Zoology, EarlyView.
This study reports two isolated feather fossils from the Lower Cretaceous Dabeigou Formation in northeastern China. Morphological analyses identified them as the earliest known feathered theropods (potentially including avian) in the Jehol Biota. This finding reveals a complex ecosystem at the dawn of the Jehol Biota, bridging the temporal and faunal ...
Qian Wu, Qian‐Nan Zhang, Dang‐Peng Xi   +2 more
wiley   +1 more source

The radiation belt of the Sun

, 2013
2 pages, 1 ...
openaire   +2 more sources

The earth's trapped radiation belts [PDF]

, 1975
The near-earth charged particle environment is discussed in terms of spacecraft design criteria.
Noll, R. B., Mcelroy, M. B.
core  

Morphotype Bias, Morph Specific Recruitment and No Elevation‐Life History Relation in High Altitude Mesquite Lizard Populations

Integrative Zoology, EarlyView.
Site‐level differences in population growth (λ) and phenotype frequencies. Mountain silhouettes represent the three study sites. Morph relative abundances are shown in the colored vertical bar. Point estimates and confidence intervals of λ for each site are displayed below, with the dashed line marking the threshold for demographic stability (λ = 1 ...
Brasil Canales‐Gordillo, Wendy L. Cuandón‐Hernández, José L. Jaramillo‐Alba, Jorge I. Chiu‐Valderrama, Hibraim A. Pérez‐Mendoza   +4 more
wiley   +1 more source

Chorus wave power at the strong diffusion limit overcomes electron losses due to strong diffusion

Nature Communications
Earth’s radiation belts consist of high-energy charged particles trapped by Earth’s magnetic field. Strong pitch angle diffusion of electrons caused by wave-particle interaction in Earth’s radiation belts has primarily been considered as a loss process ...
T. A. Daggitt, R. B. Horne, S. A. Glauert, G. Del Zanna, J. M. Albert   +4 more
doaj   +1 more source

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

Neural Networks and Multivariate Analysis Based on Geochemical Data to Determine Stone Provenance From Ancient Calabrian Quarries (Southern Italy)

Archaeometry, EarlyView.
ABSTRACT This study shows an innovative approach to determine the origin of some Calabrian rocks quarried used in ancient times. Twenty‐five quarries, distributed in all the Calabrian provinces (Southern Italy), were studied and sampled. Ten samples were taken from each quarry, for a total of 250 samples.
Domenico Miriello, Stefano Columbu, Raffaella De Luca, Marco Lezzerini, Mirco Taranto, Fabrizio Antonelli   +5 more
wiley   +1 more source