Results 151 to 160 of about 550,699 (320)
Plasma irregularities in the comet's tail [PDF]
The Astrophysical Journal, 1976 Scintillation theory is invoked to explain fluctuations in radio intensity observed during occultation of the extragalactic radio source PKS 2025-15 by the plasma tail of comet 1973 XII on Jan. 5, 1975. Plasma irregularities and turbulence in the tail of the comet (Kohoutek 1973f) are fitted to a Gaussian spectrum and to a Kolmogorov power-law spectrum
openaire +2 more sources
Neural canal ridges: A novel osteological correlate of postcranial neuroanatomy in dinosaurs
The Anatomical Record, Volume 308, Issue 5, Page 1349-1368, May 2025.Abstract In this article, we document the widespread presence of bony ridges in the neural canals of non‐avian dinosaurs, including a wide diversity of sauropods, two theropods, a thyreophoran, and a hadrosaur. These structures are present only in the caudal vertebrae.
Jessie Atterholt +7 more
wiley +1 more source
Ecogenotoxicity testing of aquatic environment by comet assay in plants
Frontiers in Genetics, 2015 One of the goals of environmental monitoring is the detection of potentially hazardous compounds in water. We have set up a standard method to apply the Comet assay in aquatic plants that could be of great interest to evaluate cytotoxicity, genotoxicity ...
Anita Mukherjee
doaj +1 more source
Sungrazer Comet C/2012 S1 (ISON): Curve of light, nucleus size, rotation and peculiar structures in the coma and tail [PDF]
arXiv, 2014 We present our results for comet (ISON). Our results were obtained with amateur telescopes observing from the ground, before and after the comet had passed conjunction with the Sun in August 2013. We measured a mean radius of 830 +- 245 m, and we have identified a persistent structure in the direction of the sun with a preliminary rotation period of ...
arxiv
Cyto‐Genotoxic Assessment of Sulfoxaflor in Allium cepa Root Cells and DNA Docking Studies
Microscopy Research and Technique, Volume 88, Issue 5, Page 1521-1533, May 2025.Cyto‐genotoxic Assessment of Sulfoxaflor in Allium cepa Root Cells and DNA Docking Studies. ABSTRACT Sulfoxaflor (SFX) is an insecticide that is commonly used for the control of sap‐feeding insects. Since SFX is extensively applied globally, it has been implicated in the substantial induction of environmental toxicity.
Recep Liman +7 more
wiley +1 more source
On the acceleration of the receding masses in the tail of Halley's comet 1910 June 6 [PDF]
, 1910 E. E. Barnard
openalex +1 more source
Basic &Clinical Pharmacology &Toxicology, Volume 136, Issue 5, May 2025.USP13 is a promising therapeutic target for cellular proliferation in multiple myeloma. Bruceine A can retard the development of multiple myeloma by targeting USP13/PARP1‐mediated DNA damage repair and triggering cell apoptosis. ABSTRACT Multiple myeloma (MM) is an incurable hematologic malignancy, driving significant interest in the discovery of novel
Mengjie Guo +9 more
wiley +1 more source
Ground-based cometary spectroscopy [PDF]
The observational problems presented by bright comets near perihelion are discussed. High and low resolution spectra (3100-800A) of the bright comets Kohoutek, Kobayashi-Berger-Milon, West and d'Arrest are presented.
Wyckoff, S.
core +1 more source
The Eddy Flux Transport of the Magnetohydrodynamic Quasi‐Geostrophic Disturbances
Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.Abstract The classic Eliassen‐Palm (E‐P) flux in the geophysical fluid dynamics is a vector to qualify the eddy momentum and heat flux transport by Rossby waves in the latitude‐height plane. In this investigation, we derive two magnetic E‐P fluxes to quantify the eddy energy transport by magnetic Rossby waves by using magnetohydrodynamic quasi ...
Chengkang Li, Yaokun Li
wiley +1 more source