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A relatively new rating designation for sun protective textiles and clothing is UPF (ultraviolet protection factor), which represents the ratio of sunburn-causing UV measured without and with the protection of the fabric. For example, a fabric rated UPF 30 means that, if 30 units of UV fall on the fabric, only 1 unit will pass through to the skin.
Also, quality UV filters offer some protection against lens contamination while minimizing the inherent additional distortion. In photography, the term "UV filter" can also be misused as a filter that passes UV light while blocking other wavelengths in the light spectrum, in the same way, the term " IR filter " is used for filtering the entire ...
The UV index is a number linearly related to the intensity of sunburn-producing UV radiation at a given point on the Earth's surface. It cannot be simply related to the irradiance (measured in W / m 2 ) because the UV of greatest concern occupies a spectrum of wavelengths from 295 to 325 nm, and shorter wavelengths have already been absorbed a ...
The University of Valparaíso (UV) is a state public university in Chile, with its headquarters and the majority of its campuses in the city of Valparaíso. It has several other campuses in the Valparaíso Region and in Santiago , which is 100 km from Valparaiso.
Ultraviolet light therapy or ultraviolet phototherapy is a treatment for psoriasis, atopic skin disorder, vitiligo and other skin diseases.. There are two main treatments: UVB that is the most common, and PUVA.
Likewise, the irradiance depends on the brightness (radiant intensity, W/sr) of the UV source, the distance between the UV source and the microbe, the attenuation of filters (e.g. fouled glass) in the light path, the attenuation of the medium (e.g. microbes in turbid water), the presence of particles or objects that can shield the microbes from ...
The new university offers Honduran youth an educational offer of three careers: Architecture, Agronomy and Administration of Agricultural Companies. On May 8, 1978, authorization was given for the establishment of the José Cecilio del Valle University, granted by the Government of Honduras by Decree 1605-EP of the Ministry of Public Education. [3]
UV Toledo The College of Dentistry and Nursing is situated on a separate campus in Banilad, Mandaue City, alongside the Vicente Gullas Memorial Hospital and the Gullas College of Medicine. Previously, the Gullas College of Medicine (formerly known as Mandaue Academy) operated from a campus in downtown Cambaro, Mandaue City.