Results 111 to 120 of about 2,637 (244)
Journal of Fish Biology, EarlyView.Abstract Knowledge on the ecology and life‐history traits of coastal marine species is vital to inform their conservation and management, especially as their coastal habitats come under increasing threats. However, such data have never been collated for four of the five families in the suborder Syngnathoidei—the close relatives of the better‐studied ...
Syd J. Ascione +3 more
wiley +1 more source
On Models of Meteoroids Fragmentation in the Atmosphere [PDF]
Physical-Chemical Kinetics in Gas Dynamics, 2019 Brykina, I. G. +2 more
openaire +1 more source
Journal of Sleep Research, EarlyView.ABSTRACT Although not as prominent as in other animals, humans also experience seasonal variations in sleep duration and circadian processes. These variations are likely primarily driven by changes in photoperiod length. Anecdotally, many people report experiencing fatigue and low energy levels, particularly during spring in Germany, Switzerland and ...
Christine Blume, Albrecht Vorster
wiley +1 more source
Modeling Meteoroid Densities for Spacecraft Risk Assessment
, 2019 This report describes the methodologies and algorithms that NASAs Meteoroid Environment Office (MEO) currently utilizes to measure meteoroid densities.
Ehlert, Steven
core
Marine Ecology, EarlyView.Abstract The focus of the present study was on arcturid isopods occurring in the subarctic region around Iceland. Data from two decades of sampling with an epibenthic sledge (EBS) during numerous expeditions of the BIOICE (Benthic Invertebrates of Icelandic Waters; 1992–2004) and IceAGE (Icelandic marine Animals: Genetics and Ecology; 2011—ongoing ...
Vivien Lukas Hartmann +5 more
wiley +1 more source
A chemical model of meteoric ablation [PDF]
Atmospheric Chemistry and Physics, 2008 Most of the extraterrestrial dust entering the Earth's atmosphere ablates to produce metal vapours, which have significant effects on the aeronomy of the upper mesosphere and lower thermosphere.
T. Vondrak +3 more
doaj
Analysis of radiation and meteoroid satellite data
, 1972 The data obtained in earth orbit by the Radiation and Meteoroid Satellite (RMS) were interpreted and reduced to a form which will be usable by future space experimenters. The required tasks are detailed.
Farmer, B. J.
core
Meteoritics &Planetary Science, EarlyView.Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis +5 more
wiley +1 more source
Estimated visual magnitudes of the EISCAT UHF meteors
, 2008 We have investigated the conditions for simultaneous meteor observations with the EISCAT UHF radar system and telescopic optical devices. The observed characteristics of 410 meteors detected by all three UHF receivers are compared with model simulations ...
Westman, Assar, +5 more
core +1 more source
Noble gases and nitrogen in material from asteroid Bennu
Meteoritics &Planetary Science, EarlyView.Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty +7 more
wiley +1 more source