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Frost resistance in the tropical palm Euterpe edulis and its pattern of distribution in the Atlantic Forest of Argentina
(Elsevier Science, 2008-08)
Frost resistance and subzero temperature effects on photosynthesis, survival and distribution were studied in Euterpe edulis, a tree palm species of the Atlantic Forest, near the southern limit of the species distribution. ...
Rapid maize leaf and immature ear responses to UV-B radiation
(Frontiers Media, 2011-07)
Because of their sessile lifestyle, plants have evolved adaptations to environmental factors, including UV-B present in solar radiation. To gain a better understanding of the initial events in UV-B acclimation, we have ...
Giga-year evolution of Jupiter Trojans and the asymmetry problem
(Elsevier Inc, 2014-09)
We present a series of numerical integrations of observed and fictitious Jupiter Trojan asteroids, under the gravitational effects of the four outer planets, for time-spans comparable with the age of the Solar System. From ...
Filament interaction modeled by flux rope reconnection
(IOP Publishing, 2011-02)
Hα observations of solar active region NOAA 10501 on 2003 November 20 revealed a very uncommon dynamic process: during the development of a nearby flare, two adjacent elongated filaments approached each other, merged at ...
Synthesis of hydrogen peroxide in water ice by ion irradiation
(Academic Press Inc Elsevier Science, 2006-12)
We present infrared absorption studies on the effects of 50–100 keV Ar+ and 100 keV H+ ion irradiation of water ice films at 20–120 K. The results support the view that energetic ions can produce hydrogen peroxide on the ...
Metal enrichment of the intracluster medium: a three-dimensional picture of chemical and dynamical properties
(Wiley Blackwell Publishing, Inc, 2006-06)
We develop a model for the metal enrichment of the intracluster medium (ICM) that combines a cosmological non-radiative hydrodynamical N-body/SPH (smoothed particle hydrodynamic) simulation of a cluster of galaxies, and a ...
Differential response of planktonic primary, bacterial, and dimethylsulfide production rates to static vs. dynamic light exposure in upper mixed-layer summer sea waters
(Copernicus Publications, 2013-12)
Microbial plankton experience short-term fluctuations in total solar irradiance and in its spectral composition as they are vertically moved by turbulence in the oceanic upper mixed layer (UML). The fact that the light ...
Differential Effects of Cr(VI) on the Ultrastructure of Chloroplast and Plasma Membrane of Salvinia minima Growing in Summer and Winter. Relationships With Lipid Peroxidation, Electrolyte Leakage, Photosynthetic Pigments, and Carbohydrates
(Springer, 2015-02)
Seasonal variations of chloroplast thylakoids and plasma membrane ultrastructure and changes in some biochemical parameters (e.g., metal accumulation, photosynthetic pigments, carbohydrates, lipid peroxidation, and electrolyte ...
Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated Titania
(American Chemical Society, 2017-09)
Mesoporous titania thin films (MTTFs) with well ordered cubic array of mesopores were synthesized on glass and silicon substrates using Brij 58 as a template. The effect of the thermal treatment and the substrate on the ...
Optical photometry and spectroscopy of the 1987A-like supernova 2009mw
(Wiley Blackwell Publishing, Inc, 2016-06)
We present optical photometric and spectroscopic observations of the 1987A-like supernova (SN) 2009mw. Our BV RI and g ′ r ′ i ′ z ′ photometry covers 167 days of evolution, including the rise to the light curve maximum, ...