Visual Difficulty Driving at Night

1983 ◽  
Vol 66 (1) ◽  
pp. 20-24 ◽  
Author(s):  
J. M. STEWARD ◽  
B.L. COLE ◽  
J.L. PETTIT
Keyword(s):  
PLoS ONE ◽  
2013 ◽  
Vol 8 (5) ◽  
pp. e63315 ◽  
Author(s):  
Ellen E. Freeman ◽  
Marie-Hélène Roy-Gagnon ◽  
Elodie Samson ◽  
Slim Haddad ◽  
Marie-Josée Aubin ◽  
...  

2018 ◽  
Vol 19 (2) ◽  
pp. 154-163 ◽  
Author(s):  
Mehmet Sait Cengiz ◽  
ÇIĞDEM CENGIZ

ABSTRACT:  It is necessary to periodically maintain lighting equipment in accordance with international standards. Contamination of lamps caused by long-term use of lighting equipment will result in loss of Luminous Flux and optical losses. The decrease in lighting performance poses a visual difficulty for drivers and causes accidents. In this study, the total Maintenance Factor is numerically examined by considering the losses of diffuser and lens for LED lamps used in tunnel lighting. The variation of luminaries performance with years considering Maintenance Factors as regards environmental conditions and features of the luminaries is evaluated to demonstrate the importance of tunnel lighting maintenance. Moreover, to show the importance of LED lamps Maintenance Factor, the variation of illumination levels of LED lamps is analysed under different Maintenance Factors. It is observed that enhancing Maintenance Factor would contribute to energy efficiency. ABSTRAK: Penjagaan peralatan cahaya secara berkala mengikut piawai kebangsaan adalah amat penting. Pencemaran lampu disebabkan penggunaan peralatan cahaya pada jangka panjang akan menyebabkan kehilangan kilauan kerdipan lampu dan optik. Pengurangan pencahayaan ini menyebabkan kesukaran pandangan pada pemandu dan menyebabkan kemalangan jiwa. Kajian ini mengkaji tentang jumlah Faktor Penjagaan secara numerik dengan mengambil kira pengurangan difuser dan kanta pada lampu LED yang digunakan dalam terowong pencahayaan. Faktor Penjagaan pada perubahan kilauan berdasarkan tahun mengambil kira keadaan sekeliling dan ciri khas kilauan. Tambahan, ini dinilai bagi menunjukkan kepentingan penjagaan terowong pencahayaan dan kepentingan Faktor Penjagaan Lampu LED. Perubahan pada tahap terang pada lampu LED dikaji dengan mengambil kira Faktor Penjagaan. Peningkatan pada Faktor Penjagaan telah didapati dapat menjimatkan tenaga.


Author(s):  
Travis R. Bell

When COVID-19 enveloped sport, it presented SportsCenter, ESPN’s primary news vehicle, with an unexpected and ironic form of “March Madness,” with basketball as the sporting epicenter for a pandemic. This case study applied an ethnographic content analysis to examine how the cancellation or postponement of sport as a result of COVID-19 was framed across 22 episodes of SportsCenter from March 8 to 14, 2020. More than 134 min of coverage was devoted to COVID-19-related stories, and 268 unique types of stories were produced. Descriptive statistics suggested that COVID-19 was framed as having a direct impact on U.S. men’s professional sports leagues and the National Collegiate Athletic Association men’s basketball tournament. When considering news format characteristics, SportsCenter produced its coverage through convenience and relevance to ESPN, not sport. Even during a “breaking news” pandemic, SportsCenter retained its long-standing news process of gender bias and nationalistic favoritism. The visual difficulty of how to “show” coronavirus also presented a production challenge, but the messages and cues embedded in the visuals depicted a rapid shift in discourse that focused on basic reporting without health or global context. Instead, SportsCenter overwhelmed viewers with how sport was ripped away from (U.S.) American society.


2017 ◽  
Vol 26 (4) ◽  
pp. 266-282 ◽  
Author(s):  
Halis Sakız ◽  
Mehmet Sarıcalı

PLoS ONE ◽  
2014 ◽  
Vol 9 (2) ◽  
pp. e88306 ◽  
Author(s):  
Hanen Harrabi ◽  
Marie-Josee Aubin ◽  
Maria Victoria Zunzunegui ◽  
Slim Haddad ◽  
Ellen E. Freeman

1983 ◽  
Vol 27 (3) ◽  
pp. 216-219
Author(s):  
Neil D. Lerner ◽  
Vincent P. Gallagher

This paper outlines a research project directed at determining the visual difficulty of interpreting behind-the-wheel nighttime driving scenes. A series of experiments was conducted utilizing slides which were photographed from a driver's-eye view. Three experiments assessed subjective judgment of the difficulty of the view for driving. Two further experiments examined temporal and eye-movement aspects of scene viewing. Finally, an “instability” model of scene complexity is described and related to the subjective data.


1970 ◽  
Vol 69 (6) ◽  
pp. 1019-1022
Author(s):  
William O. Light ◽  
Frederic D. Burg ◽  
Michael S. Stock ◽  
John M. Douglass
Keyword(s):  

2021 ◽  
Vol 11 ◽  
Author(s):  
Shahina Pardhan ◽  
Lee Smith ◽  
Rupert Bourne ◽  
Adrian Davis ◽  
Nicolas Leveziel ◽  
...  

ObjectiveIndividually, vision and hearing impairments have been linked to higher levels of anxiety and depression. We investigated the effect of dual sensory impairment (difficulty seeing and hearing) in a large representative sample of Spanish adults.MethodsData from a total of 23,089 adults (age range: 15–103 years, 45.9% men) from the Spanish National Health Survey 2017 were analyzed. Self-reported difficulty of seeing and hearing (exposures), and depression and chronic anxiety (outcomes) were analyzed. Multivariable logistic regression was assessed for difficulty with vision alone, hearing alone and with difficulty with both, adjusting for gender, age, marital status, living as a couple, education, smoking, alcohol consumption, BMI, physical activity, use of glasses/contact lenses, and hearing aid.ResultsVisual difficulty, hearing difficulty, and dual difficulties were all associated with significantly higher odds for depression (ORs 2.367, 2.098, and 3.852, respectively) and for chronic anxiety (ORs 1.983, 1.942, and 3.385, respectively). Dual sensory difficulty was associated with higher odds ratios for depression and anxiety when compared to either impairment alone.ConclusionDual sensory difficulty is associated with significantly higher odds of anxiety and depression when compared to either vision or hearing difficulty alone. Appropriate interventions are needed to address any reversible causes of vision and hearing as well as anxiety and depression in people in these specific groups.


PEDIATRICS ◽  
1964 ◽  
Vol 34 (4) ◽  
pp. 584-584
Author(s):  
C. E. DENT
Keyword(s):  

The report of two cases of homocystinuria by Gerritsen and Waisman (Pediatrics, 33: 413, 1964) raises an important clincal point. The two cases reported by myself and others (Arch. Dis. Child., 38: 425, 1963) both had bilaterally dislocated lenses and this abnormality has been present in all other cases seen by us since then. Gerritsen and Waisman do not make entirely clear statements with respect to eye abnormalities in their patients. For case K.T. we are only told "There was no complaint of any visual difficulty" (p. 415), and nothing is said about the examination of the eye.


BMJ ◽  
1979 ◽  
Vol 1 (6156) ◽  
pp. 105-106 ◽  
Author(s):  
P A Gardiner
Keyword(s):  
Old Age ◽  

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