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Arnaud Da Silva, J. M. S., Emmi Schlicht, Mihai Valcu, Bart Kempenaers. (2014). Artificial night lighting rather than traffic noise affects the daily timing of dawn and dusk singing in common European songbirds. Behavioral Ecology, 25(5), 1037–1047.
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Arnold, G., Mellinger, D., Markowitz, P., Burke, M., & Lahar, D. (2012). A Win-Win-Win for Municipal Street Lighting: Converting Two-Thirds of Vermont's Street Lights to LED by 2014. American Council for an Energy-Efficient Economy., .
Abstract: Reducing energy costs and enhancing the nighttime environment with LED street lighting
is by now well understood. However, few municipalities and utilities have successfully taken
advantage of this opportunity to convert their street lighting operations to LEDs. Before a
system-wide conversion of existing street lights can occur, a utility must obtain the large amount
of required capital, identify appropriate LED street light equipment for their applications,
consider changes in utility rate structures, and design effective methods for recovering costs.
Using Vermont as a case study, this paper presents a partnership model among the statewide
energy efficiency utility, the stateâs largest electric utilities, and several municipalities. The
model was designed to overcome the challenges to widespread LED street light conversion. By
2014, more than two-thirds of Vermontâs municipal street lights will be upgraded to LED
technology. The conversion will: (1) provide municipalities with better nighttime street lighting
and significant cost savingsâat no additional capital expense to the municipalities, (2) deliver
8,000 MWh of cost-effective new savings to the energy efficiency utility, and (3) deliver
financially attractive returns for Vermontâs utilities. This win-win-win model is scalable and
replicable, and is now being considered in Massachusetts and Rhode Island
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Arnold, V. (Ed.). (1986). Als das Licht kam: Erinnerungen an die Elektrifizierung.
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Arnott, J. T. (1982). Growth Response of White and Englemann Spruce Seedlings to Extended Photoperiod Using Three Light Intensities.
Abstract: Four seedlots of white spruce (Picea glauca (Moench) Voss) and three of Engelmann spruce (Picea engelmannii Parry), covering a range of 10 degrees of latitude and a range of altitudes, were sown in BC/ CFS Styroblocks and grown in a heated greenhouse and an unheated shadehouse, using incandescent light to provide a 19-h photoperiod. Four intensities of lighting were used: 0, 100,200, and 400 Ix. A second experiment with the same seedlots was conducted in growth rooms that were programmed to evaluate the effect of low night temperature on seedling shoot growth when the photoperiod was extended to 19 h, using a light intensity of 200 Ix.
Shoot length of white and Engelmann spruce seedlings grown under an extended daylength of 100 Ix were significantly taller than the control (0 Ix). There were no significant differences in shoot length or weight among the three intensities of light used to extend the photoperiod for all seedlots except the southern latitude-low elevation population of Engelmann spruce. The more northern populations of white spruce and the high altitude populations of Engelmann spruce did not require light intensities higher than 100 Ix to maintain apical growth. Low night temperature (7°C) did produce significantly smaller seedlings than the warm night (1SoC) regime. However, terminal resting buds of seedlings grown under the cool night regime did not form any sooner than on those seedlings grown under warm nights.
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Aronson, K., Grundy, A., Korsiak, J., & Spinelli, J. J. (2015). Causes of breast cancer: could work at night really be a cause? Breast Cancer Management, 4(3), 125–127.
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