Results 91 to 100 of about 2,956 (261)

Nongravitational Forces in Planetary Systems

The Planetary Science Journal
Nongravitational forces play surprising and, sometimes, centrally important roles in shaping the motions and properties of small planetary bodies. In the solar system, the morphologies of comets, the delivery of meteorites, and the shapes and dynamics of
David Jewitt
doaj   +1 more source

Dna damage in myocardial cells of rats with experimental alcoholic cardiomyopathy: modifyng effects of fabomotizole and trimetazidene

Фармакокинетика и Фармакодинамика, 2018
Resume. Relevance. Alcoholic cardiomyopathy (ACM) is a specific heart muscle disease found in individuals with a history of long-term heavy alcohol consumption. Their underlying mechanisms are poorly known, leading to a lack of effective therapy. Related
A. K. Zhanataev, I. A. Miroshkina, I. B. Tsorin, Z. V. Chayka, S. A. Kryzhanovskii, A. D. Durnev   +5 more
doaj   +1 more source

On the distribution of orbits among long-period comets

The Astronomical Journal, 1982
The distribution of the axes defining the planes and orientations of the orbits of 542 long-period comets are analyzed. The directions of the perihelia and of the oriented plane normals show significant nonuniformity in their distributions. The preferred direction of perihelia near the apex of solar motion is refined to an (1 sigma) error circle of 20 ...
R. S. Bogart, P. D. Noerdlinger
openaire   +1 more source

Micronuclei and Other Nuclear Abnormalities in Patella Limpet as Biomarkers of Cytogenotoxicity in Recreational Port Waters

Environmental Toxicology, EarlyView.
ABSTRACT Over the past decades, the growth in human population and economic activities has led to an increase in maritime traffic. This rise puts additional pressure on marine environments, vessel fuel spills being considered to have a major impact on the ecosystem.
Carlos Valiente‐Diaz, Eva Garcia‐Vazquez, Verónica Soto‐López   +2 more
wiley   +1 more source

Cytogenotoxic Effects of Fluopyram in Allium cepa Root Cells Involving Microtubule Disruption

Environmental Toxicology, EarlyView.
ABSTRACT Fluopyram is a next‐generation fungicide widely used in agriculture; however, its persistence in soils and mobility toward aquatic systems have raised concerns regarding potential ecotoxicological risks. This study evaluated the cytogenotoxic effects of a commercial fluopyram‐based pesticide formulation on Allium cepa root meristem cells ...
Carlos Filipe Camilo‐Cotrim, Natanael Alves da Silva, Gabriela Gomes Lima, Igor Rodrigues Vasconcelos, Luciana Souza Ondei, Elisa Flávia Luiz Cardoso Bailão, Antônio Sérgio Nakao de Aguiar, Marcelino Benvindo‐Souza, Leonardo Luiz Borges, Virgínia Damin, Luciane Madureira Almeida   +10 more
wiley   +1 more source

Dynamics of long period comets

, 1987
The appearance of Halley's Comet in 1985 to 1986 and the related emphasis on research on physical models of cometary nuclei, led to a more moderate pace for the dynamical studies of the Oort cloud and the motion of long-period comets this year.
Weissman, Paul R.
core  

Brightness Behavior of Distant Oort Cloud Comets

The Planetary Science Journal
Dynamically new comets provide important insights into the conditions of the presolar nebula and its evolution, as they are believed to have experienced minimal solar heating before their discovery.
Carrie E. Holt, Matthew M. Knight, Michael S. P. Kelley, Tim Lister, Quanzhi Ye, Colin Snodgrass, Cyrielle Opitom, Rosita Kokotanekova, Megan E. Schwamb, Matthew M. Dobson, Michele T. Bannister, Marco Micheli, Stefanie N. Milam, Derek C. Richardson, The LCO Outbursting Objects Key (LOOK) Project, Edward Gomez, Joseph P. Chatelain, Sarah Greenstreet   +17 more
doaj   +1 more source

The correspondence of Giovanni Santini and Giuseppe Lorenzoni, directors of the Astronomical Observatory of Padua in the 19th century

Annals of Geophysics, 2009
<p style="margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px Times;">Giovanni Santini was appointed director of the Astronomical Observatory of Padova from 1817 to 1877. His scientific correspondence covers a period from 1807 to 1874. Most of the letters
Luisa Pigatto
doaj   +1 more source

Psychedelic‐assisted treatment for substance use disorder: A narrative systematic review

Addiction, EarlyView.
Abstract Background and aims This is the first systematic review of the extant literature on all major psychedelic‐assisted treatment for alcohol use disorder (AUD), tobacco use disorder (TUD) and other substance use disorders (SUD). We aimed to summarise the evidence for efficacy of psychedelic‐assisted treatment for AUD, TUD, and SUD; to evaluate its
Theodore Piper, Francesca Small, Sam Brown, Michael Kelleher, Luke Mitcheson, James Rucker, Allan H. Young, John Marsden   +7 more
wiley   +1 more source

Characterization of the Dust and Sodium Tails of Comet C/2020 F3 (NEOWISE) from Parker Solar Probe and Amateur Observations

The Planetary Science Journal
Comet C/2020 F3 (NEOWISE) reached perihelion on 2020 July 3 at 0.29 au and exhibited a highly structured dust tail. Using a simplified Finson–Probstein model, structures such as striae, observed in the tail in images obtained by the Parker Solar Probe ...
Qasim Afghan, Geraint H. Jones, Karl Battams, Oliver Price, Andrew J. Coates   +4 more
doaj   +1 more source