Výsledky vyhledávání - "Robert S. Wall"

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Akademický článek

IFN-γ independent markers of Mycobacterium tuberculosis exposure among male South African gold minersResearch in context

Autor: Leela R.L. Davies, Malisa T. Smith, Deniz Cizmeci, Stephanie Fischinger, Jessica Shih-Lu Lee, Lenette L. Lu, Erik D. Layton, Alison D. Grant, Katherine Fielding, Catherine M. Stein, W. Henry Boom, Thomas R. Hawn, Sarah M. Fortune, Robert S. Wallis, Gavin J. Churchyard, Galit Alter, Chetan Seshadri

Publikováno v: EBioMedicine, Vol 93, Iss , Pp 104678- (2023)

Summary: Background: The prevalence of tuberculosis among men who work in the gold mines of South Africa is among the highest in the world, but a fraction of miners demonstrate consistently negative results upon tuberculin skin test (TST) and IFN-γ

Externí odkaz: https://doaj.org/article/0c58ca4c3fba49d19ebee7d80aaf7eba

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Exploratory Analysis of Crossing Difficulties for Blind and Sighted Pedestrians at Channelized Turn Lanes

Autor: Bastian J. Schroeder, Nagui M. Rouphail, Robert S. Wall Emerson

Publikováno v: Transportation Research Record: Journal of the Transportation Research Board. 1956:94-102

This paper presents the findings from a paired comparison study of blind and sighted pedestrians judging crossing opportunities in traffic from the roadside at three channelized turn lane (CTL) locations. It is motivated by the belief that the geomet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::730bf68ec779cd3647d93092cdda34be
https://doi.org/10.1177/0361198106195600112

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Street Crossing by Sighted and Blind Pedestrians at a Modern Roundabout

Autor: Richard G. Long, Daniel H. Ashmead, Paul E. Ponchillia, Robert S. Wall, David Guth

Publikováno v: Journal of Transportation Engineering. 131:812-821

Pedestrian behavior and safety at roundabouts are not well understood, particularly for pedestrians with sensory or mobility impairments. A previous study in which participants indicated when they would cross suggested that blind pedestrians miss mor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::92ea423a645bef8b613215921bf3e6f7
https://doi.org/10.1061/(asce)0733-947x(2005)131:11(812)

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Students with Visual Impairments in Texas: Description and Extrapolation of Data

Autor: Anne L. Corn, Robert S. Wall

Publikováno v: Journal of Visual Impairment & Blindness. 98:341-350

This study found that between 2000 and 2002, the percentage of students with visual impairments in the general student population of Texas was close to a previously quoted figure of 0.15%. In addition, the percentage of students with visual impairmen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::363fe228aa71d7e3107e03f48955908f
https://doi.org/10.1177/0145482x0409800603

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Changes in Biomechanical Features of the Two-point Touch Technique as it is Learned

Autor: Daniel H. Ashmead, Robert S. Wall

Publikováno v: Journal of Visual Impairment & Blindness. 96:829-841

This study sought to chart biomechanical changes in the performance of the two-point touch technique as it was learned by four sighted, blindfolded adults with no previous cane experience. The results indicate that these participants acquired the bas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::722cf874d84fa79970dfa9577ea27610
https://doi.org/10.1177/0145482x0209601202

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Low Frequency Sound as a Navigational Tool for People with Visual Impairments

Autor: Robert S. Wall, Daniel H. Ashmead

Publikováno v: Journal of Low Frequency Noise, Vibration and Active Control. 21:199-205

For decades, a mistaken assumption in the habilitation of travel for people with visual impairments has been that the use of “echolocation” is a dominant feature of acoustic information for the guidance of locomotion. This paper outlines a theore

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bbc4272c5b7968923299310dfcff6b70
https://doi.org/10.1260/026309202321834645

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Biomechanical Movements in Experienced Cane users with and without Visual Impairments

Autor: Robert S. Wall, Daniel H. Ashmead

Publikováno v: Journal of Visual Impairment & Blindness. 96:501-515

Travelers with visual impairments and orientation and mobility (O&M) instructors were assessed in their performance of the two-point touch cane technique. Both groups deviated similarly from classical stipulations of the technique, having wider arc w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::96125ad33c8c5d72aa374b40bdc4e318
https://doi.org/10.1177/0145482x0209600703

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