Results 21 to 30 of about 30,180 (299)
Effects of UV-B and UV-C radiation on antioxidative enzymes activity of Melissa officinalis and influences of salicylic acid in UV-stress ameliorations [PDF]
Zīst/shināsī-i Giyāhī-i Īrān, 2014 The effects of decreased ozone and increased UV radiation have been studied by many researchers. The aim of this study was to investigate the effects of UV-B and UV-C radiations on Melissa officinalis L.
Latifeh Pourakbar, Mehdi Abedzadeh
doaj
Excimer UV Radiation in Dermatology
International Journal of Immunopathology and Pharmacology, 2014 Ultraviolet B (UVB 290–320 nm) radiation has been used in the treatment of different skin diseases. Light sources with narrowband UVB output spectrum have been developed with the aim of increasing the rates of “beneficial to side effect” profile of the treatment.
Specchio F. +5 more
openaire +3 more sources
Revista de Psicología, 2020 Decreased UV radiation is associated with augmented depression, drug use, and domestic violence. Findings entailing folic acid suggest that gender moderates such relationships. The present study was designed to evaluate the relationship between UV radiation and Neuroticism among females and males. Representative consumer panels of three Peruvian cities
openaire +4 more sources
Light Collimation and Focussing by a Thin Flat Metallic Slab [PDF]
, 2005 We present experimental and theoretical work showing that a flat metallic slab can collimate and focus light impinging on the slab from a punctual source. The effect is optimised when the radiation is around the bulk, not at the surface, plasma frequency.
A. Pons +16 more
core +2 more sources
Intergalactic UV background radiation field [PDF]
Journal of Astrophysics and Astronomy, 1997 We have performed proximity effect analysis of low and high resolution data, considering detailed frequency and redshift dependence of the AGN spectra processed through galactic and intergalactic material. We show that such a background flux, calculated using the observed distribution of AGNs, falls short of the value required by the proximity effect ...
Das, Snigdha, Khare, Pushpa
openaire +2 more sources
EFFECT OF SOLAR UV RADIATION ON ANTIOXIDANT ENZYMES AND PHENOLS BIOSYNTHESIS IN LETTUCE (Lactuca sativa) [PDF]
Arab Universities Journal of Agricultural Sciences, 2015 This study aims to evaluate the effect of solar UV radiation on defensive enzymes activities in lettuce seedlings. Seeds of lettuce were grown in high tunnels for 35 days, exposed to three different levels of solar UV, created by using three different ...
Mervat A.R. Ibrahim, Hany A.M. Srour
doaj +1 more source
Harmonic generation and filamentation: when secondary radiations have primary consequences
, 2014 In this Letter, it is experimentally and theoretically shown that weak odd harmonics generated during the propagation of an infrared ultrashort ultra-intense pulse unexpectedly modify the nonlinear properties of the medium and lead to a strong ...
Billard, F. +6 more
core +1 more source
CONSIDERATIONS CONCERNING THE INFLUENCE OF UV RADIATIONS ON THE BODY [PDF]
Analele Universităţii "Constantin Brâncuşi" din Târgu Jiu: Seria Inginerie, 2019 This paper shows how the association between ultraviolet light (UV) and the diseases produced by the human body. There is strong evidence that exposure to ultraviolet radiation (UVR) is associated with malignancy of basal cell carcinoma, photokeratitis ...
Roxana Mecu +2 more
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Optical structure and function of the white filamentary hair covering the edelweiss bracts
, 2007 The optical properties of the inflorescence of the high-altitude ''Leontopodium nivale'' subsp. ''alpinum'' (edelweiss) is investigated, in relation with its submicrometer structure, as determined by scanning electron microscopy.
C. Starr +15 more
core +1 more source
Nanomaterials, 2021 Bi2Se3 is a topological quantum material that is used in photodetectors, owing to its narrow bandgap, conductive surface, and insulating bulk. In this work, Ag@Bi2Se3 nanoplatelets were synthesized on Al2O3(100) substrates in a two-step process of ...
Chih-Chiang Wang +3 more
doaj +1 more source