A wavelet software package named Uvi Wave has been developed by the Signal Theory Group, in the University of Vigo, to provide a simple way to work with wavelets. So, the toolbox may be useful to make easier the understanding of theoretical concepts. Moreover, it provides an experimentation platform for wavelet applications. This paper describes the contents and main features of Uvi Wave, that ...

We examined condom attitudes, perceived vulnerability to HIV, HIV testing experiences, and sexual and substance use risk behaviors of 161 active Latino male gang members, aged 18-26 years old, living in Los Angeles, California. Gang members reported negative condom attitudes and a perceived vulnerability to HIV. The majority (53%) of gang members reported unprotected vaginal intercourse (UVI) i...

BACKGROUND The older population is a risk group for hypovitaminosis D. The Ultraviolet Index (UVI) can be an indicator of potential for cutaneous synthesis of vitamin D but physiological and other environmental factors also influence vitamin D synthesis and status. Knowledge about vitamin D status in Portuguese older adults is limited. This study aims to explore the association between Ultravio...

Ultraviolet radiation is a highly energetic component of the solar spectrum that needs to be monitored because harmful life on Earth, especially in areas where ozone layer has been depleted, like Chile. This work first address long-term (five-year) behaviour ultraviolet erythemal (UVER) Santiago, Chile (33.5° S, 70.7° W, 500 m) using situ measurements and empirical modelling. Observations indic...

Thinning of the atmospheric ozone layer leads to elevated levels of Ultraviolet-B (UVB) at the Earth's surface, resulting in an increase of health risks to living organisms due to DNA damage. This paper examines the multidecadal changes of total column ozone from 1979 to 2005 with the aid of ground-based UVB stations using the ultraviolet multifilter rotating shadow-band radiometer (UV-MFRSR). ...

[1] Precipitating particle data from the DMSP F12 and F13 satellites has been merged with image data from the Ultraviolet Imager (UVI) on the Polar satellite. UVI images were combined within single transpolar passes of the DMSP F12 and F13 satellites. Pixel irradiances were then averaged into 1 1 bins along the satellite tracks, thus generating along-track irradiance profiles. Similarly, energy...

Recently Cabrol et al. (2014), hereafter C14, reported measurements of the UV Index (UVI) reaching 43.3 at a high altitude location in the Andes (Licancabur; 22.5◦ S, 67.5◦ W, 5917m a.s.l.). This value is much larger than those previously reported from other high altitude tropical locations. For example, UVI maxima reported for Mauna Loa (19.5◦ N, 155.6◦ W, 3397m a.s.l.) (Bodhaine et al., 1997;...

Ultraviolet (UV) exposure significantly contributes to non-melanoma skin cancer. In the context of health, UV is product time and Index (UVI), a weighted sum irradiance I(λ) over all wavelengths from λ = 250 400 nm. our analysis United States Environmental Protection Agency’s UV-Net database 400,000 spectral measurements taken several years, we found that UVI well estimated by 77 I310. To furth...

[1] Satellite-derived climatologies of UV index (UVI) and erythemal daily dose were determined for Argentina at a geographical resolution of 0.5 latitude by 0.5 longitude. Total Ozone Mapping Spectrometer climatology of key input parameters was used to calculate the clear-sky ground-level solar UV irradiance. NASA Surface meteorology and Solar Energy cloud cover data were used to determine the ...

Biomass burning has an impact on atmospheric composition as well human health and wellbeing. In South Africa, the biomass season extends from July to October affects aerosol loading tropospheric ozone concentrations which in turn solar ultraviolet radiation (UVR) levels at surface. Using ground-based observations of aerosols, UVR (as modelled UVR) we investigated aerosols August, September, ove...