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Author Mattsson, P.; Johansson, M.; Almén, M.; Laike, T.; Marcheschi, E.; Ståhl, A. url  doi
openurl 
  Title Improved Usability of Pedestrian Environments After Dark for People with Vision Impairment: an Intervention Study Type Journal Article
  Year 2020 Publication Sustainability Abbreviated Journal Sustainability  
  Volume 12 Issue 3 Pages 1096  
  Keywords Vision  
  Abstract Walking is an important transport mode for sustainable cities, but the usability of pedestrian environments for people with impaired vision is very limited after dark. This study compares the usability of a walkway, operationalized in terms of (i) the pedestrian’s ability to orient themselves and detect infrastructure elements, and (ii) the perceived quality of lighting in the environment (evaluated in terms of the perceived strength quality and perceived comfort quality). The study was performed in a city in southern Sweden, along a pedestrian route where observations and structured interviews had previously been conducted and after an intervention involving installing new lighting systems with LED lights. A mixed method analysis involving participants with impaired vision (N=14) showed that the intervention generally improved the walkway’s usability: observations indicated that the participants’ ability to orientate themselves and detect infrastructure elements increased, and the interviews showed that the intervention increased the perceived strength quality of the lighting along the walkway. However, the effects on the perceived comfort quality were unclear. It is therefore important to carefully evaluate new lighting systems to reduce the risk of creating an inappropriate lighting design that will limit walking after dark by people with impaired vision.  
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  Series Volume Series Issue Edition  
  ISSN 2071-1050 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial (down) 3022  
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Author Brauckhoff, M.; Wahlberg, M.; Haga, J.Å.R.; Karlsen, H.E.; Wilson, M. url  doi
openurl 
  Title Embracing Their Prey at That Dark Hour: Common Cuttlefish (Sepia officinalis) Can Hunt in Nighttime Light Conditions Type Journal Article
  Year 2020 Publication Frontiers in Physiology Abbreviated Journal Front. Physiol.  
  Volume 11 Issue Pages in press  
  Keywords Animals  
  Abstract Cuttlefish are highly efficient predators, which strongly rely on their anterior binocular visual field for hunting and prey capture. Their complex eyes possess adaptations for low light conditions. Recently, it was discovered that they display camouflaging behavior at night, perhaps to avoid detection by predators, or to increase their nighttime hunting success. This raises the question whether cuttlefish are capable of foraging during nighttime. In the present study, prey capture of the common cuttlefish (Sepiaofficinalis) was filmed with a high-speed video camera in different light conditions.Experiments were performed in daylight and with near-infrared light sources in two simulated nightlight conditions, as well as in darkness. The body of the common cuttlefish maintained a velocity of less than 0.1 m/s during prey capture, while the tentacles during the seizing phase reached velocities of up to 2.5 m/s and accelerations reached more than 450 m/s2 for single individuals. There was no significant difference between the day and nighttime trials, respectively. In complete darkness, the common cuttlefish was unable to catch any prey. Our results show that the common cuttlefish are capable of catching prey during day- and nighttime light conditions. The common cuttlefish employ similar sensory motor systems and prey capturing techniques during both day- and nighttime conditions.  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1664-042X ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial (down) 3021  
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Author Rabin, J.; Cha, C.; Nguyen, M.; Renteria, L.; Abebe, F.; Wastani, A. url  doi
openurl 
  Title Cool (blue) vs. warm (yellow) displays enhance visual function Type Journal Article
  Year 2020 Publication Eye (London, England) Abbreviated Journal Eye (Lond)  
  Volume in press Issue Pages  
  Keywords Human Health  
  Abstract Displays emitting substantial blue light (phones, tablets, computers) can produce eyestrain (computer vision syndrome: CVS) [1, 2]. Yet findings have been challenged [3]. A metric to assess CVS is the highest detectable flicker rate (CFF). We compared the short-term effects of bluish (“cool”) vs. yellowish (“warm”) displays on high temporal frequency contrast sensitivity (TCS), which relates directly to the CFF.  
  Address University of the Incarnate Word Rosenberg School of Optometry, San Antonio, TX, USA  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0950-222X ISBN Medium  
  Area Expedition Conference  
  Notes PMID:32029916 Approved no  
  Call Number GFZ @ kyba @ Serial (down) 3020  
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Author Kacprzyk, A.; Kuchta, Z. url  doi
openurl 
  Title Shining a new light on the environmental Kuznets curve for CO2 emissions Type Journal Article
  Year 2020 Publication Energy Economics Abbreviated Journal Energy Economics  
  Volume 87 Issue Pages 104704  
  Keywords Remote Sensing  
  Abstract This paper examines the existence of an inverted U-shaped relationship between income and CO2 emissions from fossil fuels for a panel of 161 countries over the period 1992–2012. Our contribution, empirical in nature, is threefold. (i) We estimate the Environmental Kuznets Curve for CO2 emissions using three conventional measures of GDP taken from the PWT and the WDI and show that the results of the estimates are unstable and that the turning points are dependent on the measure of GDP. (ii) We use a new dataset of GDP based on the Defense Meteorological Satellite Program's Operational Linescan System (DMSP-OLS) nighttime light imagery as a proxy for the development level, and using these data, which are less prone to the measurement errors in the System of National Accounts statistics, we find evidence for the existence of an Environmental Kuznets Curve for CO2 emissions. (iii) We apply a U test that confirms that the estimated extreme point is within our data range. The evaluated turning point, beyond which CO2 emissions start to fall as income rises, is considerably lower than earlier studies show, and thus, our results provide more optimistic prospects of the possible environmental benefits of economic growth.  
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  ISSN 0140-9883 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial (down) 3019  
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Author Liu, J.; Deng, Y.; Wang, Y.; Huang, H.; Du, Q.; Ren, F. url  doi
openurl 
  Title Urban Nighttime Leisure Space Mapping with Nighttime Light Images and POI Data Type Journal Article
  Year 2020 Publication Remote Sensing Abbreviated Journal Remote Sensing  
  Volume 12 Issue 3 Pages 541  
  Keywords Remote Sensing  
  Abstract Urban nighttime leisure spaces (UNLSs), important urban sites of nighttime economic activity, have created enormous economic and social benefits. Both the physical features (e.g., location, shape, and area) and the social functions (e.g., commercial streets, office buildings, and entertainment venues) of UNLSs are important in UNLS mapping. However, most studies rely solely on census data or nighttime light (NTL) images to map the physical features of UNLSs, which limits UNLS mapping, and few studies perform UNLS mapping from a social function perspective. Point-of-interest (POI) data, which can reflect social activity functions, are needed. As a result, a novel methodological UNLS mapping framework, that integrates NTL images and POI data is required. Consequently, we first extracted high-NTL intensity and high-POI density areas from composite data as areas with high nightlife activity levels. Then, the POI data were analyzed to identify the social functions of leisure spaces revealing that nighttime leisure activities are not abundant in Beijing overall, the total UNLS area in Beijing is 31.08 km2, which accounts for only 0.2% of the total area of Beijing. In addition, the nightlife activities in the central urban area are more abundant than those in the suburbs. The main urban area has the largest UNLS area. Compared with the nightlife landmarks in Beijing established by the government, our results provide more details on the spatial pattern of nighttime leisure activities throughout the city. Our study aims to provide new insights into how multisource data can be leveraged for UNLS mapping to enable researchers to broaden their study scope. This investigation can also help government departments better understand the local nightlife situation to rationally formulate planning and adjustment measures.  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2072-4292 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial (down) 3018  
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