Results 81 to 90 of about 329,629 (202)
A Microkrystite from the Australasian Tektite/Microtektite Strewn Field
Meteoritics &Planetary Science, EarlyView.Abstract Microkrystites are glassy impact spherules. They contain primary crystallites carrying information on the physical and chemical conditions prevailing during vaporization, melting, and ejection in large impact cratering events. We report on the geochemistry and mineralogy down to nanometer scale of the first microkrystite (ODP1144A,14) from the
Matteo Del Rio +4 more
wiley +1 more source
, 1987 The past year was one of tremendous activity because of the appearance of Halley's Comet. Observations of the comet were collected from a number of sources and compared with the detailed predictions of the comet thermal modeling program.
Weissman, Paul R., Kieffer, Hugh H.
core
Jasmonate biosynthesis regulates key events in barley vegetative and reproductive development
New Phytologist, EarlyView.Generation and general phenotypes of hvaoc mutants. Summary Cereal grain is a global food staple. Filial tissues in grain, such as the embryo and endosperm, grow embedded in the maternal ovule and surrounding ovary wall. Maternal tissues provide nutrition and protection but are progressively reduced and degraded as filial tissues expand, driving grain ...
Jian Luo +17 more
wiley +1 more source
Optimization of Neutral Comet Assay for studying DNA double-strand breaks in pea and wheat [PDF]
Journal of BioScience and Biotechnology, 2013 This study describes an adaptation of the Comet assay under neutral conditions for mono- and dicotyledonous plants pea (Pisum sativum L.) and wheat (Triticum aestivum L.).
Ivelina Nikolova +4 more
doaj
On the rotation of cometary nuclei and small asteroids
, 1985 The spin rate distributions of comet nuclei and small asteroids are compared, and it is shown that Whipple's (1982) finding of a faster average rotation for the asteroid sample was due to observational biases.
P. Farinella +5 more
core +1 more source
Oral Diseases, EarlyView.ABSTRACT Objective Head and neck cancer radiotherapy can lead to jaw osteoradionecrosis (ORN). There is currently no definitive treatment for ORN. The efficacy of a novel orally delivered aglycosylated IGF‐1 with an E‐peptide (CTB‐Pro‐IGF‐1), bioencapsulated in plant cells, was evaluated as therapy for jaw ORN in rats. Materials and Methods Rat jaw ORN
Sunday O. Akintoye +5 more
wiley +1 more source
Down But Not Out: The Case of Long-period Comet C/2021 O3 (Panstarrs)
The Astronomical JournalWe combine ground- and space-based observations of long-period comet C/2021 O3 (Panstarrs; perihelion distance 0.287 au) in order to investigate its reported near-perihelion destruction.
David Jewitt +3 more
doaj +1 more source
Photochemistry and Photobiology, EarlyView.Thin solid films of pure glycine or alanine (thicknesses ranging from 10 to 700 nm) were prepared on MgF2 windows using a vacuum sublimation/recondensation method. VUV‐UV spectroscopy of these films enabled us to characterize new absorption cross sections for glycine and alanine for VUV‐UV radiations between 120 and 300 nm.
Juliette Pastore +6 more
wiley +1 more source
The Astrophysical JournalInterstellar comet 3I/ATLAS shows unusual volatile activity, including strong H _2 O, CO, and CO _2 production and a delayed postperihelion detection of CH _4 .
Akshat Rawat, Kinsuk Acharyya
doaj +1 more source
Potato virus X induces DNA damage in leaf nuclei of the host plant Nicotiana tabacum L. var. xanthi
Biologia Plantarum, 2014 We employed the comet assay (single cell gel electrophoresis) to evaluate induced DNA damage in nuclei isolated from tobacco leaves (Nicotiana tabacum var. xanthi) inoculated with Potato virus X (PVX). The highest DNA damage, expressed by the tail moment
N. Cerovska +4 more
doaj +1 more source