Now showing items 1-10 of 124
Radiation Damage Mechanisms of Monolayer-Protected Nanoparticles via TEM Analysis
(American Chemical Society, 2017-11-19)
In this work, it is shown that thiol-protected Au nanoparticles (AuNPs@SR) of approximately 3.4 nm size suffered unexpectedly high radiation damage under standard transmission electron microscopy (TEM) operating conditions. ...
Dynamics of potentially protective compounds in Rhodophyta species from Patagonia (Argentina) exposed to solar radiation
(Elsevier Science Sa, 2004-07)
The impact of solar radiation upon potentially protective compounds (i.e., UV-absorbing compounds and carotenoids) was assessed in four Rhodophyte species from Patagonia (i.e., Ceramium sp. Lyngbye, Corallina officinalis ...
Black stem by Phoma macdonaldii affected ecophysiological components that determine grain yield in sunflower (Helianthus annuus L.)
(Elsevier Science, 2014-03)
Black stem (BS) of sunflower (Helianthus annuus L.) by Phoma macdonaldii has been reported in many production areas of the world associated to losses in grain yield. Their symptoms could be confounded with natural leaf ...
Solar UV-B radiation modifies the proportion of volatile organic compounds in flowers of field-grown grapevine (Vitis vinifera L.) cv. Malbec
Ultraviolet-B solar radiation (UV-B) is an environmental signal with biological effects in different plant tissues. Recent investigations reported dramatic changes of terpenes with a protective role in plant tissues submitted ...
Volatile organic compounds characterized from grapevine (Vitis vinifera L. cv. Malbec) berries increase at pre-harvest and in response to UV-B radiation
Ultraviolet-B solar radiation (UV-B) is an environmental signal with biological effects in plant tissues. Recent investigations have assigned a protective role of volatile organic compounds (VOCs) in plant tissues submitted ...
Disminución de la dosis de radiación en el radiodiagnósticoReducing the dose of radiation in diagnostic radiology
(Revista Chilena de Radiología, 2014)
Protective effect of an antithyroid compound against γ-radiationinduced damage in human colon cancer cells
We have previously reported the radioprotective effect of propylthiouracil (PTU) on thyroid cells. The aim of the present study was to analyze whether tumor cells and normal cells demonstrate the same response to PTU. Human ...
Effects of solar radiation on the Patagonian Rhodophyte, Corallina officinalis (L.).
Experiments were conducted in Patagonian waters (Argentina) to assess the impact of solar radiation (PAR, 400– 700 nm, and UVR, 280–400 nm) upon two strains of the red alga Corallina officinalis Linnaeus, characteristic ...
Effects of sun exposure and vegetation cover on Woodpecker nest orientation in subtropical forests of South America
(Springer Tokyo, 2019-09-11)
Variations in the orientation behavior of Woodpecker nests can be due to environmental factors such as latitude as well as local climate conditions. In this study, the orientations of dot-fronted Woodpecker nesting cavities ...
Apigenin produced by maize flavone synthase I and II protects plants against UV-B-induced damage
(Wiley Blackwell Publishing, Inc, 2019-02)
Flavones, one of the largest groups of flavonoids, have beneficial effects on human health and are considered of high nutritional value. Previously, we demonstrated that maize type I flavone synthase (ZmFNSI) is one of the ...