Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1365-2559.1991.tb00905.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Two distinct populations of dark comets delineated by orbits and sizes.
Proc Natl Acad Sci U S A
December 2024
Institute for Astronomy, University of Hawaii, Honolulu, HI 96822.
Small bodies are capable of delivering essential prerequisites for the development of life, such as volatiles and organics, to the terrestrial planets. For example, empirical evidence suggests that water was delivered to the Earth by hydrated planetesimals from distant regions of the Solar System. Recently, several morphologically inactive near-Earth objects were reported to experience significant nongravitational accelerations inconsistent with radiation-based effects, and possibly explained by volatile-driven outgassing.
View Article and Find Full Text PDFDiagnostic ability of confocal scanning ophthalmoscope for the detection of concurrent retinal disease in eyes with asteroid hyalosis.
PLoS One
December 2024
Department of Ophthalmology, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, South Korea.
Article Synopsis
- * Researchers analyzed medical records of 100 eyes with AH, finding that 76 had other retinal diseases; TC-cSO showed the best results, with 94% of images having minimal obscuration from asteroid bodies.
- * TC-cSO outperformed the other devices in accuracy (95%) and sensitivity (81%) for diagnosing retinal conditions, making it an effective alternative for screening when
Simplified Meteorite Parent Body Alteration of Amino Acids by Hydrothermal Processes.
Astrobiology
December 2024
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA.
Article Synopsis
- * The research simulated the aqueous alteration processes of residues from irradiated interstellar ice, using minerals like serpentinite and the Allende meteorite to study amino acid changes.
- * Results showed that minerals and their types crucially affect the creation and breakdown of amino acids during these simulated experiments.
Trace metals in skeletal calcite of echinoderms from the Barents Sea.
Chemosphere
November 2024
Marine Ecology Department, Institute of Oceanology Polish Academy of Sciences, Powstańców Warszawy 55, 81-712, Sopot, Poland. Electronic address:
This study investigates the skeletal accumulation of selected elements (Al, Ag, As, Ca, Co, Cr, Cu, Fe, Hg, K, Mg, Mn, Na, Pb, Sr, Zn) in echinoderms inhabiting Barents Sea, an area impacted by human activities from northern Norway and Kola Peninsula, known sources of metal pollution. The primary aim was to have insight whether metals incorporation in the skeleton of Arctic echinoderms is regulated physiologically by the organism or influenced by abiotic environmental conditions (expressed as distance from the source of metal pollution). Metal concentrations were analysed in 17 species from four echinoderm classes: Asteroidea, Ophiuroidea, Crinoidea and Echinoidea.
View Article and Find Full Text PDFThe lack of floater perception in eyes with asteroid hyalosis and its direct implications on laser vitreolysis.
Int J Retina Vitreous
October 2024
Department of Ophthalmology, Rambam Health Care Campus, P.O.B 9602, Haifa, 31096, Israel.
Purpose: To present a novel optical model explaining why the vast majority of patients with Asteroid Hyalosis (AH) do not perceive any floaters. This changes our understanding of floater perception and undermines the operation mode of YAG laser vitreolysis.
Methods: Relying on a previously published model of floater perception based on astronomical equations of a solar eclipse, and on ultrasound images of the vitreous in three eyes with AH, we explain why such patients do not perceive floaters in spite of opaque bodies filling their entire vitreous, to the point of, in severe cases of AH, obscuring the fundus view during ophthalmoscopy.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!