UV radiation decreasing over U.S.? (ultra-violet radiation)

Science News;  February 20, 1988 ;     593 words ...UV radiation decreasing over U.S.? Long-term measurements of ultraviolet (UV) radiation from the sun are not living up to scientific...1974 and 1985, they report, the amount of UV radiation appears to have decreased. However, some scientists...

Biological Monitoring of Solar UV Radiation at 17 Sites in Asia, Europe...

Photochemistry and Photobiology;  May 1, 2006 ;     700+ words ......biologically effective dose of ambient UV radiation has been developed using UV-sensitive...global and long-time monitoring of solar UV radiation, in particular at tropical sites where...is taking place. INTRODUCTION Solar UV radiation is a ubiquitous environmental agent...

The effects of UV radiation A and B on diurnal variation in photosynthesis...

Photochemistry and Photobiology;  February 1, 1999 ;     700+ words ......global food chains, is inhibited by UV radiation. Evaluating UV inhibition is therefore...assessing the role of natural levels of UV radiation in regulating ecosystem behavior as...diurnal variability of the effect of UV radiation on photosynthesis in three diverse algal...

An improved algorithm for satellite-derived UV radiation

Photochemistry and Photobiology;  January 1, 2003 ;     700+ words ......Improved Algorithm for Satellite-derived UV Radiation ABSTRACT The improved algorithm surface...from 280 to 315 nm. INTRODUCTION Solar UV radiation is potentially harmful to a variety...the atmosphere. Increased exposure to UV radiation has multiple effects (3,4). As far as...

UV radiation, autoimmunity, and questions galore

The Scientist;  May 5, 2003 ;     700+ words ......conundrum: The effects of ultraviolet (UV) radiation from sun exposure can induce the onset...Institute of Environmental Health Sciences. UV radiation encompasses the electromagnetic spectrum...Harvard researchers showed recently that UV radiation absorbed from working in the sun ...

Consensus paper, experts warn of dangers of UV radiation

Ophthalmology Times;  February 15, 2004 ;     337 words ......hazards associated with ultraviolet (UV) radiation, according to a panel of experts. The...four key points: that the dangers of UV radiation are significant; that public policy...professionals have a thorough understanding of UV radiation; and a recommended protection protocol...

ENVIRONMENT-CHILE: UV RADIATION, THE DARK SIDE OF THE SUN

Inter Press Service English News Wire;  January 10, 2007 ;     700+ words ......parts of Argentina and Chile, where UV radiation increases by 25 percent. According to...with clear skies nearly every day, UV radiation is expected to reach its highest levels...since water, sand and snow reflect UV radiation and enchance its effects. "I believe...

Role of UV in Cutaneous Melanoma[dagger]

Photochemistry and Photobiology;  March 1, 2008 ;     700+ words ......keratinocytes, in UV-induced skin carcinogenesis, specifically in nonmelanoma...from UV-induced damage, UV radiation has long been suspected...health, increased exposure to UV radiation is harmful to human health...Within the spectrum of UV radiation, UVB is well ...

Isoflavonoid compounds from red clover (trifoluim pratense) protect from...

Photochemistry and Photobiology;  September 1, 2001 ;     700+ words ......Immune Suppression Induced by UV Radiation(para) ABSTRACT Isoflavones...oxidative damage induced by UV radiation both in vitro and following...moderate doses of solar-simulated UV radiation. For equol the protection...immunosuppression induced by both UV radiation and ...

Study of UV Radiation Dose Received by the Spanish Population

Photochemistry and Photobiology;  November 1, 2007 ;     700+ words ...ABSTRACT Excess exposure to UV radiation can affect our health by causing sunburn...has been calculated by means of global UV radiation on a horizontal plane. A database of...population throughout the year. INTRODUCTION UV radiation affects human health. Several studies...

Interview: Richard Atlas discusses the use of UV radiation to kill anthrax...

NPR All Things Considered;  October 23, 2001 ;     658 words ......Richard Atlas discusses the use of UV radiation to kill anthrax in the mail system Host...fact, said that they intended to try UV radiation of the mail. That would be effective...protective. ADAMS: What does he mean by UV radiation? Prof. ATLAS: Essentially, something...

FIXIT; Fluorescent lights give off only small amount of UV...

Star Tribune (Minneapolis, MN);  August 28, 2007 ;     253 words ......sunlight, is a source of ultraviolet (UV) radiation. Are all of us who are replacing our...and Radiological Health, the amount of UV radiation from fluorescent lamps is very small...people should avoid all exposures to UV radiation, including sunlight. A second group...

Attenuation of biologically effective UV radiation in tropical Atlantic...

Photochemistry and Photobiology;  January 1, 1999 ;     700+ words ......attenuation of biologically effective UV radiation in marine tropical waters. Small quartz...tool to determine levels of harmful UV radiation in marine waters. The highest attenuation...indicate that biologically effective UV radiation may easily reach ecologically significant...

Influence of UV radiation on four freshwater invertebrates

Photochemistry and Photobiology;  November 1, 2000 ;     700+ words ...Influence of UV Radiation on Four Freshwater Invertebrates...following four species to artificial UV radiation: Cypridopsis vidua, an ostracode...dissolved organic carbon, attenuates UV radiation (1,2). The wide range of responses...

Battery-powered sensor detects dangerous UV radiation. (ultraviolet)

EDN;  December 8, 1994 ;     208 words ...The battery-powered circuit in Fig 1 detects 295-nm UV radiation, which is dangerous to eyes and skin. Be sure to protect...sub.4] resets the 4040 binary counter, I[C.sub.5]. UV radiation at 29S nm generates a current in the R1107 vacuum...