Search Results - "Häder, D P"
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Environmental effects of stratospheric ozone depletion, UV radiation and interactions with climate change: UNEP Environmental Effects Assessment Panel, update 2019
Published in Photochemical & photobiological sciences (2020)“…This assessment, by the United Nations Environment Programme (UNEP) Environmental Effects Assessment Panel (EEAP), one of three Panels informing the Parties to…”
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Effects of UV radiation on aquatic ecosystems and interactions with climate change
Published in Photochemical & photobiological sciences (01-02-2011)“…The health of freshwater and marine ecosystems is critical to life on Earth. The impact of solar UV-B radiation is one potential stress factor that can have a…”
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Environmental effects of stratospheric ozone depletion, UV radiation, and interactions with climate change: UNEP Environmental Effects Assessment Panel, Update 2021
Published in Photochemical & photobiological sciences (01-03-2022)“…The Environmental Effects Assessment Panel of the Montreal Protocol under the United Nations Environment Programme evaluates effects on the environment and…”
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The response of aquatic ecosystems to the interactive effects of stratospheric ozone depletion, UV radiation, and climate change
Published in Photochemical & photobiological sciences (01-05-2023)“…Variations in stratospheric ozone and changes in the aquatic environment by climate change and human activity are modifying the exposure of aquatic ecosystems…”
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Cyanobacterial Biofertilizers in Rice Agriculture
Published in The Botanical review (01-10-2001)“…Floodwater and the surface of soil provide the sites for aerobic phototrophic nitrogen (N) fixation by free-living cyanobacteria and the Azolla-Anabaena…”
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Fighting fish parasites with photodynamically active chlorophyllin
Published in Parasitology research (1987) (01-06-2016)“…Water-soluble chlorophyll (chlorophyllin) was used in a phototoxic reaction against a number of fish ectoparasites such as Ichtyobodo, Dactylogyrus,…”
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Chlorophyllin for the control of Ichthyophthirius multifiliis (Fouquet)
Published in Parasitology research (1987) (01-08-2012)“…Tests were conducted to determine the efficiency of the photodynamic substance chlorophyllin to kill different life stages of the protozoan parasite…”
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The role of UV-B radiation in aquatic and terrestrial ecosystems—an experimental and functional analysis of the evolution of UV-absorbing compounds
Published in Journal of photochemistry and photobiology. B, Biology (01-02-2002)“…We analysed and compared the functioning of UV-B screening pigments in plants from marine, fresh water and terrestrial ecosystems, along the evolutionary line…”
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Photodynamic control of human pathogenic parasites in aquatic ecosystems using chlorophyllin and pheophorbid as photodynamic substances
Published in Parasitology research (1987) (01-02-2009)“…When used at low concentrations and added to the water body, water-soluble chlorophyllin (resulting from chlorophyll after removal of the phytol) and…”
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Treatment of ichthyophthiriasis with photodynamically active chlorophyllin
Published in Parasitology research (1987) (01-04-2016)“…Water-soluble chlorophyll (chlorophyllin) exerts pronounced photodynamic activity on fish parasites. In order to determine its potential as a remedy against…”
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Solar UV-B and UV-A irradiance in arid high-mountain regions: Measurements on the island of Tenerife as compared to previous tropical Andes data
Published in Journal of Geophysical Research. B. Solid Earth (29-12-2009)“…Spectroradiometric measurements of global and diffuse solar UV‐B and UV‐A irradiance were performed as a function of solar elevation under clear‐sky conditions…”
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Ultraviolet radiation-induced generation of reactive oxygen species, DNA damage and induction of UV-absorbing compounds in the cyanobacterium Rivularia sp. HKAR-4
Published in South African journal of botany (01-01-2014)“…The effects of ultraviolet radiation (UVR) on certain biochemical processes were studied in the cyanobacterium Rivularia sp. HKAR-4. The generation of reactive…”
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Photosynthetic performance of Anabaena variabilis PCC 7937 under simulated solar radiation
Published in Photosynthetica (01-06-2013)“…In vivo chlorophyll fluorescence analysis reflecting the photosystem II functionality was investigated in the cyanobacterium Anabaena variabilis PCC 7937 under…”
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The beating pattern of the flagellum of Euglena gracilis under altered gravity during parabolic flights
Published in Journal of plant physiology (2010)“…The unicellular freshwater flagellate Euglena gracilis shows negative gravitactic behavior. Previous experiments have revealed that the orientation is most…”
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Overview of the Liulin type instruments for space radiation measurement and their scientific results
Published in Life sciences in space research (01-01-2015)“…Ionizing radiation is recognized to be one of the main health concerns for humans in the space radiation environment. Estimation of space radiation effects on…”
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Photoprotective compounds in cyanobacteria, phytoplankton and macroalgae — a database
Published in Journal of photochemistry and photobiology. B, Biology (01-11-2000)“…A database on photoprotective compounds in cyanobacteria, phytoplankton and macroalgae has been developed. It contains information on photoprotective compounds…”
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A Biased Random Walk Model for the Trajectories of Swimming Micro-organisms
Published in Journal of theoretical biology (21-06-1997)“…The motion of swimming micro-organisms that have a preferred direction of travel, such as single-celled algae moving upwards (gravitaxis) or towards a light…”
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R3D-B2 – Measurement of ionizing and solar radiation in open space in the BIOPAN 5 facility outside the FOTON M2 satellite
Published in Advances in space research (15-04-2009)“…Solar and space radiation have been monitored using the R3D-B2 radiation risks radiometer-dosimeter on board a recent space flight on the Russian satellite…”
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Relativistic electron fluxes and dose rate variations during April–May 2010 geomagnetic disturbances in the R3DR data on ISS
Published in Advances in space research (15-07-2012)“…Space radiation has been monitored successfully using the Radiation Risks Radiometer-Dosimeter (R3D) installed at the ESA EXPOSE-R (R3DR) facility outside of…”
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Effects of solar UV radiation on aquatic ecosystems and interactions with climate change
Published in Photochemical & photobiological sciences (01-03-2007)“…Recent results continue to show the general consensus that ozone-related increases in UV-B radiation can negatively influence many aquatic species and aquatic…”
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