Earlier particle experiments in the 1970s on Pioneer-10 and -11 and Voyager-1 and -2 provided Jupiter flyby particle data, which were used by Divine and Garrett to develop the first Jupiter trapped radiation environment model. This model was used to establish a baseline radiation effects design limit for the Galileo onboard electronics. Recently, Garrett et al. have developed an updated Galileo Interim Radiation Environment (GIRE) model based on Galileo electron data. In this paper, we have used the GIRE model to reassess the computed radiation exposures and dose effects for Galileo. The 34-orbit 'as flown' Galileo trajectory data and the updated GIRE model were used to compute the electron and proton spectra for each of the 34 orbits. The total ionisation doses of electrons and protons have been computed based on a parametric shielding configuration, and these results are compared with previously published results.
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http://dx.doi.org/10.1093/rpd/nci009 | DOI Listing |
Lancet
October 2024
Institute of Mental Health, University of Nottingham, Nottingham, UK.
Bioinspir Biomim
October 2023
Department of Psychology, University of Washington, Seattle, WA, United States of America.
The octopus coordinates multiple, highly flexible arms with the support of a complex distributed nervous system. The octopus's suckers, staggered along each arm, are employed in a wide range of behaviors. Many of these behaviors, such as foraging in visually occluded spaces, are executed under conditions of limited or absent visual feedback.
View Article and Find Full Text PDFBJOG
August 2023
Department of Neonatology, North Hospital, Assistance Publique des Hôpitaux de Marseille, Marseille, France.
Objective: To compare the neurodevelopmental outcomes of preterm twins at 5½ years by chorionicity of pregnancy.
Design: Prospective nationwide population-based EPIPAGE2 (Etude Epidémiologique sur les Petits Âges Gestationnels) cohort study.
Setting: A total of 546 maternity units in France, between March and December 2011.
Clin Orthop Relat Res
April 2023
Department of Surgery and Perioperative Care, Dell Medical School, The University of Texas at Austin, Austin, TX, USA.
Background: Feelings of imposter syndrome (inadequacy or incompetence) are common among physicians and are associated with diminished joy in practice. Identification of modifiable factors associated with feelings of imposter syndrome might inform strategies to ameliorate them. To this point, though, no such factors have been identified.
View Article and Find Full Text PDFFront Robot AI
July 2022
Department of Psychology, University of Washington, Seattle, WA, United States.
Biological and artificial agents are faced with many of the same computational and mechanical problems, thus strategies evolved in the biological realm can serve as inspiration for robotic development. The octopus in particular represents an attractive model for biologically-inspired robotic design, as has been recognized for the emerging field of soft robotics. Conventional global planning-based approaches to controlling the large number of degrees of freedom in an octopus arm would be computationally intractable.
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