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Author Welz, P.-S.; Zinna, V.M.; Symeonidi, A.; Koronowski, K.B.; Kinouchi, K.; Smith, J.G.; Guillen, I.M.; Castellanos, A.; Crainiciuc, G.; Prats, N.; Caballero, J.M.; Hidalgo, A.; Sassone-Corsi, P.; Benitah, S.A. url  doi
openurl 
  Title (up) BMAL1-Driven Tissue Clocks Respond Independently to Light to Maintain Homeostasis Type Journal Article
  Year 2019 Publication Cell Abbreviated Journal Cell  
  Volume 177 Issue 6 Pages 1436-1447.e12  
  Keywords Animals  
  Abstract Circadian rhythms control organismal physiology throughout the day. At the cellular level, clock regulation is established by a self-sustained Bmal1-dependent transcriptional oscillator network. However, it is still unclear how different tissues achieve a synchronized rhythmic physiology. That is, do they respond independently to environmental signals, or require interactions with each other to do so? We show that unexpectedly, light synchronizes the Bmal1-dependent circadian machinery in single tissues in the absence of Bmal1 in all other tissues. Strikingly, light-driven tissue autonomous clocks occur without rhythmic feeding behavior and are lost in constant darkness. Importantly, tissue-autonomous Bmal1 partially sustains homeostasis in otherwise arrhythmic and prematurely aging animals. Our results therefore support a two-branched model for the daily synchronization of tissues: an autonomous response branch, whereby light entrains circadian clocks without any commitment of other Bmal1-dependent clocks, and a memory branch using other Bmal1-dependent clocks to “remember” time in the absence of external cues.  
  Address Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology, 08028 Barcelona, Spain; ICREA, Catalan Institution for Research and Advanced Studies, 08010 Barcelona, Spain. Electronic address: salvador.aznar-benitah@irbbarcelona.org  
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  Series Volume Series Issue Edition  
  ISSN 0092-8674 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:31150620 Approved no  
  Call Number GFZ @ kyba @ Serial 2513  
Permanent link to this record
 

 
Author Filho, C.R.D.S.; Zullo Jr, J.; Elvidge, C. url  doi
openurl 
  Title (up) Brazil's 2001 energy crisis monitored from space Type Journal Article
  Year 2004 Publication International Journal of Remote Sensing Abbreviated Journal International Journal of Remote Sensing  
  Volume 25 Issue 12 Pages 2475-2482  
  Keywords Remote Sensing; Energy  
  Abstract Data sensed by the US Air Force Defence Meteorological Satellite Program (DMSP) Operational Linescan System (OLS) during the years 2000 and 2001 in Brazil were tested as a tool to monitor reduction of nocturnal lighting. This particular timing was examined as the Brazilian population and industry were forced to reduce electric power consumption by 20% during 2001, in relation to 2000, for a period of several months, starting officially on 1 June 2001. Large urban agglomerates were compelled to switch off city lights by at least the same amount. The Distrito Federal (DF), including the Brazilian capital, Brasilia, was one of the primary areas where the government actively sought electric power consumption reductions. Using the DF as a study case, we demonstrate that the mean grey levels derived from averaging DMSP-OLS data acquired over urban centres appear to be a useful index to monitor relative oscillations in energy consumption.  
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  ISSN 0143-1161 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2362  
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Author Shlesinger, T.; Loya, Y. url  doi
openurl 
  Title (up) Breakdown in spawning synchrony: A silent threat to coral persistence Type Journal Article
  Year 2019 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 365 Issue 6457 Pages 1002-1007  
  Keywords Animals; Coral  
  Abstract The impacts of human and natural disturbances on coral reefs are typically quantified through visible damage (e.g., reduced coral coverage as a result of bleaching events), but changes in environmental conditions may also cause damage in less visible ways. Despite the current paradigm, which suggests consistent, highly synchronized spawning events, corals that reproduce by broadcast spawning are particularly vulnerable because their reproductive phenology is governed by environmental cues. Here, we quantify coral spawning intensity during four annual reproductive seasons, alongside laboratory analyses at the polyp, colony, and population levels, and we demonstrate that, compared with historical data, several species from the Red Sea have lost their reproductive synchrony. Ultimately, such a synchrony breakdown reduces the probability of successful fertilization, leading to a dearth of new recruits, which may drive aging populations to extinction.  
  Address School of Zoology, George S. Wise Faculty of Life Sciences, Tel-Aviv University, Tel-Aviv 69978, Israel  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0036-8075 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:31488683 Approved no  
  Call Number GFZ @ kyba @ Serial 2673  
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Author Barros, R.; Medrano, F.; Norambuena, H.V.; Peredo, R.; Silva, R.; de Groote, F.; Schmitt, F. url  doi
openurl 
  Title (up) Breeding Phenology, Distribution and Conservation Status of Markham's Storm-Petrel Oceanodroma markhami in the Atacama Desert Type Journal Article
  Year 2019 Publication Ardea Abbreviated Journal Ardea  
  Volume 107 Issue 1 Pages 75  
  Keywords Animals  
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  Series Volume Series Issue Edition  
  ISSN 0373-2266 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2434  
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Author Sharpe, C.M. openurl 
  Title (up) Brief Outline of the History of Electric Illumination in the District of Columbia Type Journal Article
  Year 1946 Publication Records of the Columbia Historical Society, Washington, DC Abbreviated Journal  
  Volume 48 Issue Pages 191-207  
  Keywords History  
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  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2430  
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