|   | 
Details
   web
Records
Author Bará, S.
Title Naked-eye astronomy: optics of the starry night skies Type Journal Article
Year 2014 Publication Proc. SPIE 9289, 12th Education and Training in Optics and Photonics Conference, 2014 Abbreviated Journal Proc. SPIE 9289
Volume (down) 9289 Issue Pages
Keywords Society; light pollution
Abstract The world at night offers a wealth of stimuli and opportunities as a resource for Optics education, at all age levels and from any (formal, non formal or informal) perspective. The starry sky and the urban nightscape provide a unique combination of pointlike sources with extremely different emission spectra and brightness levels on a generally darker, locally homogeneous background. This fact, combined with the particular characteristics of the human visual system under mesopic and scotopic conditions, provides a perfect setting for experiencing first-hand different optical phenomena of increasing levels of complexity: from the eye's point spread function to the luminance contrast threshold for source detection, from basic diffraction patterns to the intricate irradiance fluctuations due to atmospheric turbulence. Looking at the nightscape is also a perfect occasion to raise awareness on the increasing levels of light pollution associated to the misuse of public and private artificial light at night, to promote a sustainable use of lighting, and to take part in worldwide citizen science campaigns. Last but not least, night sky observing activities can be planned and developed following a very flexible schedule, allowing individual students to carry them out from home and sharing the results in the classroom as well as organizing social events and night star parties with the active engagement of families and groups of the local community. This contribution describes these possibilities and introduces some of the free resources available to put them in practice.
Address Univ. de Santiago de Compostela, Spain; salva.bara@usc.es
Corporate Author Thesis
Publisher SPIE Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1134
Permanent link to this record
 

 
Author Bará, S.
Title Light pollution: Why should we care? Type Journal Article
Year 2014 Publication Second International Conference on Applications of Optics and Photonics Manuel Filipe P. C. Martins Costa; Rogério Nunes Nogueira Aveiro, Portugal, 2014 Abbreviated Journal Proc. SPIE 9286
Volume (down) 9286 Issue Pages
Keywords Society; light pollution
Abstract The historical development of lighting technologies has been characterized by what evolution theorists call 'punctuated equilibrium': a succession of long periods of stable development followed by short periods of rapid change when key technological breakthroughs give rise to new lighting paradigms. Nowadays with the massive deployment of LED-based solid state lighting systems the illumination field is undergoing one of such accelerated transformation events. In parallel, a growing body of research has unveiled some of the complex interactions between the daily cycles of light and darkness and the regulating mechanisms of individuals, populations and ecosystems, including humans. This communication addresses some of the challenges that this new situation poses for the development of sustainable lighting systems.
Address Univ. de Santiago de Compostela, Spain; salva.bara@usc.es
Corporate Author Thesis
Publisher SPIE Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1133
Permanent link to this record
 

 
Author Acuto, M.
Title We need a science of the night Type Journal Article
Year 2019 Publication Nature Abbreviated Journal Nature
Volume (down) 576 Issue 7787 Pages 339
Keywords *Policy; *Society; *Commentary
Abstract (none)
Address Connected Cities Lab, University of Melbourne; michele.acuto(at)unimelb.edu.au
Corporate Author Thesis
Publisher Springer Nature Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0028-0836 ISBN Medium
Area Expedition Conference
Notes PMID:31853076 Approved no
Call Number IDA @ john @ Serial 2792
Permanent link to this record
 

 
Author Eisenstein, M.
Title Chronobiology: stepping out of time Type Journal Article
Year 2013 Publication Nature Abbreviated Journal Nature
Volume (down) 497 Issue 7450 Pages S10-2
Keywords Human Health; Animals; Benzofurans/therapeutic use; CLOCK Proteins/genetics/metabolism; Circadian Rhythm/genetics/*physiology; Cyclopropanes/therapeutic use; Efficiency/physiology; Humans; Melatonin/agonists/metabolism; Obesity/metabolism; Sleep/genetics/*physiology; Suprachiasmatic Nucleus/metabolism
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0028-0836 ISBN Medium
Area Expedition Conference
Notes PMID:23698500 Approved no
Call Number LoNNe @ christopher.kyba @ Serial 500
Permanent link to this record
 

 
Author Spoelstra, K.; van Grunsven, R.H.A.; Donners, M.; Gienapp, P.; Huigens, M.E.; Slaterus, R.; Berendse, F.; Visser, M.E.; Veenendaal, E.
Title Experimental illumination of natural habitat—an experimental set-up to assess the direct and indirect ecological consequences of artificial light of different spectral composition Type Journal Article
Year 2015 Publication Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences Abbreviated Journal Philos Trans R Soc Lond B Biol Sci
Volume (down) 370 Issue Pages 20140129
Keywords Lighting; experimental lighting; population dynamics; daily timing; seasonal timing; cascading effects; citizen science; Pipistrellus pipistrellus; bats; pipistrelle bat; wood mouse; birds
Abstract Artificial night-time illumination of natural habitats has increased dramatically over the past few decades. Generally, studies that assess the impact of artificial light on various species in the wild make use of existing illumination and are therefore correlative. Moreover, studies mostly focus on short-term consequences at the individual level, rather than long-term consequences at the population and community level—thereby ignoring possible unknown cascading effects in ecosystems. The recent change to LED lighting has opened up the exciting possibility to use light with a custom spectral composition, thereby potentially reducing the negative impact of artificial light. We describe here a large-scale, ecosystem-wide study where we experimentally illuminate forest-edge habitat with different spectral composition, replicated eight times. Monitoring of species is being performed according to rigid protocols, in part using a citizen-science-based approach, and automated where possible. Simultaneously, we specifically look at alterations in behaviour, such as changes in activity, and daily and seasonal timing. In our set-up, we have so far observed that experimental lights facilitate foraging activity of pipistrelle bats, suppress activity of wood mice and have effects on birds at the community level, which vary with spectral composition. Thus far, we have not observed effects on moth populations, but these and many other effects may surface only after a longer period of time.
Address 1 Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), PO Box 50, 6700 AB Wageningen, The Netherlands; k.spoelstra@nioo.knaw.nl
Corporate Author Thesis
Publisher Royal Society Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title The biological impacts of artificial light at night: from molecules to communities Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1126
Permanent link to this record