toggle visibility Search & Display Options

Select All    Deselect All
 |   | 
Details
   print
  Records Links (up)
Author Moore, B. url  doi
openurl 
  Title The Relative Length of Day and Night Type Journal Article
  Year 1920 Publication Ecology Abbreviated Journal  
  Volume 1 Issue 3 Pages 234-237  
  Keywords Plants  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0012-9658 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2407  
Permanent link to this record
 

 
Author Mortazavi, S.A.R.; Faraz, M.; Laalpour, S.; Kaveh Ahangar, A.; Eslami, J.; Zarei, S.; Mortazavi, G.; Gheisari, F.; Mortazavi, S.M.J. url  doi
openurl 
  Title Exposure to Blue Light Emitted from Smartphones in an Environment with Dim Light at Night Alters the Reaction Time of University Students Type Journal Article
  Year 2019 Publication Shiraz E-Medical Journal Abbreviated Journal Shiraz E-Med J  
  Volume Issue Pages e88230  
  Keywords Human Health; Blue light; smartphone; Reaction Time; shift work  
  Abstract Background: Substantial evidence now indicates that exposure to visible light at night can be linked to a wide spectrum of disorders ranging from obesity to cancer. More specifically, it has been shown that exposure to short wavelengths in the blue region at night is associated with adverse health effects, such as sleep problems.

Objectives: This study aimed at investigating if exposure to blue light emitted from common smartphones in an environment with dim light at night alters human reaction time.

Methods: Visual reaction time (VRT) of 267 male and female university students were recorded using a simple blind computer-assisted VRT test, respectively. Volunteer university students, who provided their informed consent were randomly divided to two groups of control (N = 126 students) and intervention (N = 141 students). All participants were asked to go to bed at 23:00. Participants in the intervention group were asked to use their smartphones from 23:00 to 24:00 (watching a natural life documentary movie for 60 minutes), while the control group only stayed in bed under low lighting condition, i.e. dim light. Before starting the experiment and after 60 minutes of smartphone use, reaction time was recorded in both groups.

Results: The mean reaction times in the intervention and the control groups before the experiment (23:00) did not show a statistically difference (P = 0.449). The reaction time in the intervention group significantly increased from 412.64 ± 105.60 msec at 23:00 to 441.66 ± 125.78 msec at 24:00 (P = 0.0368) while in the control group, there was no statistically significant difference between the mean reaction times at 23:00 and 24:00.

Conclusions: To the best of the author’s knowledge, this is the first study, which showed that exposure to blue-rich visible light emitted from widely used smartphones increases visual reaction time, which would eventually result in a delay in human responses to different hazards. These findings indicate that people, such as night shift or on call workers, who need to react to stresses rapidly should avoid using their smartphones in a dim light at night.
 
  Address Student Research Committee, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1735-1391 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2534  
Permanent link to this record
 

 
Author Žiberna, I url  openurl
  Title REMOTE SENSING OF LIGHT POLLUTION IN BOSNIA AND HERZEGOVINA Type Journal Article
  Year 2019 Publication Geografski pregled Abbreviated Journal  
  Volume 40 Issue Pages 9-20  
  Keywords Remote sensing  
  Abstract Remote sensing of light pollution in Bosnia and Herzegovina

The study deals with the problem of light pollution in Bosnia and Herzegovina in the period 2013-2017. Remotely sensed data were obtained from the Suomi NPP satellite, which is scanning the earth's surface at night. The findings and geospatial trends of light pollution in the mentioned time period are discussed on the national and municipal levels. Some areas with very high and low levels of light pollution were exposed.
 
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language 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 GFZ @ kyba @ Serial 2900  
Permanent link to this record
 

 
Author Sankhla, M., S., Sharma, K., & Kumar, R. url  openurl
  Title Impacts on Human & Environment of Night Time Light Pollution Type Journal Article
  Year 2019 Publication Galore International Journal of Applied Sciences and Humanities Abbreviated Journal  
  Volume 3 Issue 2 Pages  
  Keywords Human Health; Ecology; Review  
  Abstract Light is chief source of human life. Humans are too much depended on light. High amount of use light are causing pollution to be a growing problem, however few research studies have addressed probable effects of light pollution on wildlife& humans. Astrophysicists consider light pollution to be a growing problem on worldwide. The night-sky illumination is originated to be effected by human factors such as land utilization and population density of the observation sites, together with meteorological and/or environmental factors. The interest in light pollution has been growing in many fields of science, extending from the traditional field of astronomy to atmospheric physics, environmental sciences, natural sciences and human sciences.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language 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 @ intern @ Serial 2543  
Permanent link to this record
 

 
Author Palmer, M.; Gibbons, R.; Bhagavathula, R.; Holshouser, D. url  openurl
  Title Roadway Lighting’s Impact on Altering Soybean Growth – Volume 2: LED versus HPS Color Spectral Impact Type Journal Article
  Year 2018 Publication Technical Report Abbreviated Journal  
  Volume FHWA-ICT-18-009 Issue Pages  
  Keywords Plants  
  Abstract The impact of roadway lighting on soybean plant growth and development, was measured in situ at three locations in the state of Illinois. These locations were situated in close proximity of each other for the purpose of evaluating whether there was a difference in the soy response to HPS roadway lighting, versus soy lit by a specific model of 4,000K LED roadway lighting. The plant data collection included the reproductive-stage, the plant moisture content, and the dried seed weight after harvest. The impact of the type of roadway lighting on the reproduction stage and normalized yield was within the modeling confidence limits at a level of 90%. Modifications are recommended to the specification for roadway lighting trespass. This will minimize the impact on soybean plants based on the two roadway luminaire designs included in this study.  
  Address  
  Corporate Author Thesis  
  Publisher Illinois Center for Transportation/Illinois Department of Transportation Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0197-9191 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2264  
Permanent link to this record
Select All    Deselect All
 |   | 
Details
   print

Save Citations:
Export Records: