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Author Wren, W.; Locke, S.
Title Upgraded Rig Lighting Improves Night Time Visibility While Reducing Stray Light and the Threat to Dark Skies in West Texas Type Conference Article
Year 2015 Publication Society of Petroleum Engineers Abbreviated Journal Soc. Petrol. Engr.
Volume Issue Pages
Keywords Lighting; outdoor lighting; petroleum; oil and gas; lighting engineering
Abstract McDonald Observatory, part of the University of Texas at Austin, is a world-class astronomical-research facility representing hundreds of millions of dollars of public and private investment that is increasingly threatened by nighttime lighting from oil-and-gas-related activities in and around the Permian Basin. Established in the remote Davis Mountains of West Texas in 1932, the observatory is home to some of the world's largest telescopes and it has continued as a world-renowned research center. Dark night skies are crucial to its mission. Since 2010, however, the sky along the observatory's northern horizon, in the direction of the Permian Basin, has been steadily and rapidly brightening, due to new exploration for oil and gas. The pace has been accelerating: More than 2,000 applications were filed over the past year to drill in the region. In 2011, the State of Texas enacted a law that instructs the seven counties surrounding McDonald Observatory, an area covering some 28,000 square miles, to adopt outdoor lighting ordinances designed to preserve the dark night skies for ongoing astronomical research at the observatory. Most had already done so voluntarily, but additional effort is needed throughout the area to address fast-moving energy-exploration activities.

A joint project between McDonald Observatory and Pioneer Energy Services (PES) has demonstrated that many of the adverse effects of oilfield lighting can be mitigated, without jeopardizing safety, through proper shielding and aiming of light fixtures. Beginning July, 2013, PES granted the observatory access to a working rig, Pioneer Rig #29. Every time the rig moved to a new location, there was an opportunity to install shields, re-aim floodlights, and evaluate effectiveness.

This joint project demonstrated that, in many cases, nighttime visibility on the rig can be significantly improved. Many light fixtures, which had been sources of blinding glare due to of lack of shielding, poor placement, or poor aiming, were made better and safer, using optional glare shields that are offered by manufacturers for a variety of fixture models. Proper shielding and aiming of existing fixtures improves visibility and reduces wasted uplight. New lighting systems that take advantage of light-emitting-diode technology also promise better directionality, reduced fuel consumption, and darker skies overhead.

The oil-and-gas industry has been lighting its exploration and production activities in much same way for more than 100 years, with little to no consideration of environmental impacts. The opportunity exists to adopt new lighting practices and technologies that improve safety, reduce costs, and help preserve our vanishing night skies so that important ongoing scientific exploration can continue.
Address
Corporate Author Thesis
Publisher Society of Petroleum Engineers 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 (down) SPE E&P Health, Safety, Security and Environmental Conference-Americas held in Denver, Colorado, USA, 16–18 March 2015 Approved no
Call Number IDA @ john @ Serial 1993
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Author Tapia Ayuga, C.; Sánchez de Miguel, A.; Zamorano Calvo, J.
Title LICA-UCM lamps spectral database Type Report
Year 2015 Publication unpublished Abbreviated Journal
Volume Issue Pages
Keywords Lighting; Instrumentation; technical report; Madrid; Spain; spectroscopy; spectra
Abstract Spectra of the lamps that are used for public lighting and ornamental purposes have been obtained with a portable spectrograph around Madrid city. The database is presented in this report along with a description of the procedures.
Address Grupo UCM de Astrofísica Extragaláctica e Instrumentación Astronómica, Madrid
Corporate Author Thesis
Publisher Place of Publication Madrid Editor
Language English Summary Language Original Title
Series Editor Series Title LICA Reports Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium PDF
Area Expedition Conference
Notes (down) Request to add by CK even though non-peer-reviewed Approved no
Call Number IDA @ john @ Serial 1094
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Author Hong, Y.; Lee, S.; Choi, J.; Jin, Y.; Won, J.; Hong, Y.
Title Conditional Controlled Light/Dark Cycle Influences Exercise-Induced Benefits in a Rat Model with Osteoarthritis: In Vitro and In Vivo Study Type Journal Article
Year 2019 Publication Journal of Clinical Medicine Abbreviated Journal J Clin Med
Volume 8 Issue 11 Pages 1855
Keywords Animals; environmental lighting; inflammation; musculoskeletal homeostasis; physical exercise
Abstract Physical exercise has long been recommended as a treatment for osteoarthritis (OA), though its effects vary based on the exercise protocol. Here, we examined whether environmental lighting conditions influence the anti-inflammatory benefits of exercise in a rat model of OA. Moderate-intensity treadmill exercise (Ex) was performed for six weeks under a 12:12 h light/dark (L/D) cycle, and compared against rats housed in a 24 h continuous light (L/L) environment. L/L conditions were associated with serological changes shortly after OA induction, which exacerbated the inflammatory microenvironment in the joint. Differentiation capacity was also impaired in bone precursor cells isolated from normal rats maintained under L/L conditions, despite elevated inflammatory responses. Exercise training under L/L conditions led to increased corticosterone levels in the blood, which exacerbated the progression of cartilaginous and synovial lesions. Osteoporotic phenomena were also observed in exercise-trained rats maintained under L/L conditions, along with inflammation-induced catabolism in the gastrocnemius muscle. Aberrant light/dark cycle conditions were also found to be associated with suppression of splenic Cry1 expression in exercise-trained rats, leading to dysregulation of immune responses. Taken together, these data suggest that lighting condition may be an important environmental factor influencing the exercise-induced benefits on OA.
Address Department of Medicine, Division of Hematology/Oncology, Harvard Medical SchoolBeth Israel, Deaconess Medical Center, Boston, MA 02215, USA. yonghong@inje.ac.kr
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 2077-0383 ISBN Medium
Area Expedition Conference
Notes (down) PMID:31684092 Approved no
Call Number GFZ @ kyba @ Serial 2729
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Author Lin, J.; Ding, X.; Hong, C.; Pang, Y.; Chen, L.; Liu, Q.; Zhang, X.; Xin, H.; Wang, X.
Title Several biological benefits of the low color temperature light-emitting diodes based normal indoor lighting source Type Journal Article
Year 2019 Publication Scientific Reports Abbreviated Journal Sci Rep
Volume 9 Issue 1 Pages 7560
Keywords Human Health; Lighting
Abstract Currently, light pollution has become a nonnegligible issue in our daily life. Artificial light sources with high color temperature were deem to be the major pollution source, which could induce several adverse effects on human's health. In our previous research, we have firstly developed an artificial indoor light with low color temperature (1900 K). However, the biological effects of this artificial light on human's health are unclear. Here, four artificial lights (1900 K, 3000 K, 4000 K and 6600 K) were used to evaluate some biological changes in both human (in total 152 person-times) and murine models. Compared with other three high color temperature artificial lights, our lights (1900 K) presented a positive effect on promoting the secreting of melatonin and glutamate, protecting human's eyes, accelerating would healing and hair regeneration. These systematical studies indicated that the proposed low color temperature (1900 K) light could provide several significant benefits in human's daily life.
Address The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, 330031, China. wangxiaolei@ncu.edu.cn
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 2045-2322 ISBN Medium
Area Expedition Conference
Notes (down) PMID:31101840 Approved no
Call Number GFZ @ kyba @ Serial 2501
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Author Korompeli, A.; Kavrochorianou, N.; Molcan, L.; Muurlink, O.; Boutzouka, E.; Myrianthefs, P.; Fildissis, G.
Title Light affects heart rate's 24-h rhythmicity in intensive care unit patients: an observational study Type Journal Article
Year 2019 Publication Nursing in Critical Care Abbreviated Journal Nurs Crit Care
Volume 24 Issue 5 Pages 320-325
Keywords Lighting; Human Health; Heart Rate; ICU; Circadian Rhythm
Abstract BACKGROUND: Intensive care unit (ICU) patients experience two affronts to normal 24-h rhythms: largely internal events such as medication and external factors such as light, noise and nursing interventions. AIMS AND OBJECTIVES: We investigated the impact of light variance within an ICU on 24-h rhythmicity of three key physiological parameters: heart rate (HR), mean arterial blood pressure (MAP) and body temperature (BT) in this patient population. DESIGN: Patients were assigned to beds either in the 'light' or 'dark' side within a single ICU. An actigraph continuously recorded light intensity for a 24-72-h period. METHODS: Measurements of HR, MAP and BT were recorded every 30 min. RESULTS: HR, MAP and BT did not follow 24-h rhythmicity in all patients. Higher light exposure in the Light Side of the ICU (122.3 versus 50.6 lx) was related to higher HR (89.4 versus 79.8 bpm), which may translate to clinically relevant outcomes in a larger sample. Duration of stay, the one clinical outcome measured in this study, showed no significant variation between the groups (p = 0.147). CONCLUSIONS: ICU patients are exposed to varying light intensities depending on bed positioning relative to natural sunlight, affecting the 24-h rhythm of HR. Larger, well-controlled studies also investigating the effect of relevant light intensity are indicated. RELEVANCE TO CLINICAL PRACTICE: Light is a variable that can be manipulated in the constrained environment of an ICU, thus offering an avenue for relatively unobtrusive interventions.
Address National and Kapodistrian University of Athens, University ICU, Ag. Anargyroi General Hospital, Athens, Greece
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 1362-1017 ISBN Medium
Area Expedition Conference
Notes (down) PMID:31087602 Approved no
Call Number GFZ @ kyba @ Serial 2502
Permanent link to this record