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Author Panagiotou, M.; Rohling, J.H.T.; Deboer, T. url  doi
openurl 
  Title Sleep Network Deterioration as a Function of Dim-Light-At-Night Exposure Duration in a Mouse Model Type Journal Article
  Year 2020 Publication (up) Clocks & Sleep Abbreviated Journal Clocks & Sleep  
  Volume 2 Issue 3 Pages 308-324  
  Keywords Animals  
  Abstract Artificial light, despite its widespread and valuable use, has been associated withdeterioration of health and well-being, including altered circadian timing and sleep disturbances,particularly in nocturnal exposure. Recent findings from our lab reveal significant sleep andsleep electroencephalogram (EEG) changes owing to three months exposure to dim-light-at-night(DLAN). Aiming to further explore the detrimental effects of DLAN exposure, in the present study,we continuously recorded sleep EEG and the electromyogram for baseline 24-h and following 6-h sleepdeprivation in a varied DLAN duration scheme. C57BL/6J mice were exposed to a 12:12 h light:DLANcycle (75lux:5lux) vs. a 12:12 h light:dark cycle (75lux:0lux) for one day, one week, and one month.Our results show that sleep was already affected by a mere day of DLAN exposure with additionalcomplications emerging with increasing DLAN exposure duration, such as the gradual delay ofthe daily 24-h vigilance state rhythms. We conducted detrended fluctuation analysis (DFA) on thelocomotor activity data following 1-month and 3-month DLAN exposure, and a significantly lesshealthy rest-activity pattern, based on the decreased alpha values, was found in both conditionscompared to the control light-dark. Taking into account the behavioral, sleep and the sleep EEGparameters, our data suggest that DLAN exposure, even in the shortest duration, induces deleteriouseffects; nevertheless, potential compensatory mechanisms render the organism partly adjustable andable to cope. We think that, for this reason, our data do not always depict linear divergence amonggroups, as compared with control conditions. Chronic DLAN exposure impacts the sleep regulatorysystem, but also brain integrity, diminishing its adaptability and reactivity, especially apparent in thesleep EEG alterations and particular low alpha values following DFA.  
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  ISSN 2624-5175 ISBN Medium  
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  Call Number GFZ @ kyba @ Serial 3078  
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Author Papalambrou, A.; Bali, N. url  openurl
  Title Dark Sky Sim: An Open-Design Dark Sky Simulator Type Journal Article
  Year 2020 Publication (up) Communicating Astronomy with the Public Abbreviated Journal  
  Volume 27 Issue Pages 24-26  
  Keywords Education; Skyglow  
  Abstract This article describes the key steps on how to construct the Dark Sky Simulator, the outcome of the Dark Sky Sim project. The Dark Sky Simulator is a “physical simulator” to demonstrate the effects of light pollution on the starry sky and the concept of proper lighting. The simulator consists of an LED sky model simulating the starry sky and LED model streetlighting. The simulator creates for users a first-hand experience of light pollution caused by various light fixtures. The simulator was successfully completed, and information on how to construct a simulator with simple tools and inexpensive components are made available online for free. Building the simulator is a very exciting STEM project involving hands-on construction and programming skills in addition to learning astronomy concepts, making it a useful resource for both educational and outreach communities. The project was funded by the International Astronomical Union Office of Astronomy for Development (IAU OAD).  
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  Call Number GFZ @ kyba @ Serial 2875  
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Author Rosenberg, Y.; Doniger, T.; Levy, O. url  doi
openurl 
  Title Sustainability of coral reefs are affected by ecological light pollution in the Gulf of Aqaba/Eilat Type Journal Article
  Year 2019 Publication (up) Communications Biology Abbreviated Journal Commun Biol  
  Volume 2 Issue Pages 289  
  Keywords Animals; Ecology; Molecular ecology; Urban ecology  
  Abstract As human populations grow and lighting technologies improve, artificial light gradually alters natural cycles of light and dark that have been consistent over long periods of geological and evolutionary time. While considerable ecological implications of artificial light have been identified in both terrestrial and aquatic habitats, knowledge about the physiological and molecular effects of light pollution is vague. To determine if ecological light pollution (ELP) impacts coral biological processes, we characterized the transcriptome of the coral Acropora eurystoma under two different light regimes: control conditions and treatment with light at night. Here we show that corals exposed to ELP have approximately 25 times more differentially expressed genes that regulate cell cycle, cell proliferation, cell growth, protein synthesis and display changes in photo physiology. The finding of this work confirms that ELP acts as a chronic disturbance that may impact the future of coral reefs.  
  Address Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, 52900 Israel.0000 0004 1937 0503grid.22098.31  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 2399-3642 ISBN Medium  
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  Notes PMID:31396569; PMCID:PMC6683144 Approved no  
  Call Number GFZ @ kyba @ Serial 2608  
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Author Berge, J.; Geoffroy, M.; Daase, M.; Cottier, F.; Priou, P.; Cohen, J.H.; Johnsen, G.; McKee, D.; Kostakis, I.; Renaud, P.E.; Vogedes, D.; Anderson, P.; Last, K.S.; Gauthier, S. url  doi
openurl 
  Title Artificial light during the polar night disrupts Arctic fish and zooplankton behaviour down to 200 m depth Type Journal Article
  Year 2020 Publication (up) Communications Biology Abbreviated Journal Commun Biol  
  Volume 3 Issue 1 Pages article 102  
  Keywords Animals  
  Abstract For organisms that remain active in one of the last undisturbed and pristine dark environments on the planet—the Arctic Polar Night—the moon, stars and aurora borealis may provide important cues to guide distribution and behaviours, including predator-prey interactions. With a changing climate and increased human activities in the Arctic, such natural light sources will in many places be masked by the much stronger illumination from artificial light. Here we show that normal working-light from a ship may disrupt fish and zooplankton behaviour down to at least 200 m depth across an area of >0.125 km2 around the ship. Both the quantitative and qualitative nature of the disturbance differed between the examined regions. We conclude that biological surveys in the dark from illuminated ships may introduce biases on biological sampling, bioacoustic surveys, and possibly stock assessments of commercial and non-commercial species.  
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  Call Number GFZ @ kyba @ Serial 2837  
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Author Torabi, M.J. openurl 
  Title The Possible Potentials of Astrotourism in Caucasus Type Journal Article
  Year 2020 Publication (up) Communications of the Byurakan Astrophysical Observatory Abbreviated Journal  
  Volume 67 Issue 1 Pages 127-132  
  Keywords Astrotourism  
  Abstract Astrotourism is not a new topic, but it is certainly a title that has been in the forefront of tourismand astronomy for less than two decades. For nearly half a century, observatories and sciencecenters have been opening their doors to the public on special occasions, such as Astronomy Day.However, for less than a decade, astrotourism has been the constant presence of tourists alongsideprofessional astronomers, especially on weekends. They have made it possible by following allthe principles. Until the early 1990s, one of the most important countries in the world to hostthe world's largest astronomical observatories was the Soviet Union. The Caucasus region in theformer Soviet Union hosted very important observatories due to its high altitudes, pure nature, andvery low amount of light pollution and, of course, the proper weather in warm seasons. Byurakanin Armenia, Abastumani in Georgia, Shamakhi in Azerbaijan, and BTA-6 in Russia are the fourmain collections left from that period. Fortunately, nearly two decades after the independenceof the countries in the region, the restoration and updating of these observatories have been onthe agenda. One of the helping arms to accelerate the revival of these observatories is to takeadvantage of the potential of astrotourism; especially with the location of these three countriesnear Iran, which has one of the largest astronomy enthusiast communities in the region.  
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  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 3094  
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