Results 11 to 20 of about 746,655 (293)

The LED Paradox: How Light Pollution Challenges Experts to Reconsider Sustainable Lighting [PDF]

, 2019
In the 21st century, the notion of “sustainable lighting” is closely associated with LED technology. In the past ten years, municipalities and private light users worldwide have installed light-emitting diodes in urban spaces and public streets to save ...
Dannemann, Etta, Meier, Josiane, Schulte-Römer, Nona, Söding, Max   +3 more
core   +1 more source

Dynamics and Spatial Distribution of Global Nighttime Lights [PDF]

, 2013
Using open source data, we observe the fascinating dynamics of nighttime light. Following a global economic regime shift, the planetary center of light can be seen moving eastwards at a pace of about 60 km per year.
Cauwels, Peter, Pestalozzi, Nicola, Sornette, Didier   +2 more
core   +2 more sources

Contribution of the flag leaf to lead absorption in wheat grain at the grain-filling stage

Ecotoxicology and Environmental Safety, 2021
Wheat flag leaf (FL) is one of the primary sources of carbohydrates in grains; however, its role in grain lead (Pb) absorption remains unclear. A field experiment was conducted to assess the relative contribution of the FL to Pb accumulation in wheat ...
Chuang Ma, Pan Xie, Ke Zhang, Junxing Yang, Xuanzhen Li, Fuyong Liu, Lin Lin, Hongzhong Zhang   +7 more
doaj   +1 more source

Long-term effects of chronic light pollution on seasonal functions of European blackbirds (turdus merula) [PDF]

, 2013
Light pollution is known to affect important biological functions of wild animals, including daily and annual cycles. However, knowledge about long-term effects of chronic exposure to artificial light at night is still very limited.
A Dawson, A Dawson, A Dawson, A Dawson, A Gelman, A Kaiser, B Kempenaers, B Schmid, BK Follett, BL Bird, C Rich, C Rivier, CD Santos, Claude Wicker-Thomas, D Dominoni, D Shuboni, Davide M. Dominoni, DM Bates, DM Dominoni, DM Dominoni, E Gwinner, E Gwinner, ED Kirby, EL Stone, H Poot, HPa Van Dongen, I Newton, J Partecke, JC Wingfield, Jesko Partecke, L Jenni, L Te Marvelde, LK Fonken, LK Fonken, M Titulaer, Michael Quetting, NE Cyr, RH Baayen, S Halford, S Retana-Márquez, SJ Crowley, SJ Schoech, SM Pauley, SN Wood, T Honryo, T Kantermann, TJ Nicholls, TW Davies, W Rowan   +48 more
core   +2 more sources

An analysis of light pollution at the Thirty Meter Telescope candidate sites [PDF]

, 2008
Light pollution can create difficulties for astronomers attempting to observe faint objects in the night sky. Light from a local small town can be just as intrusive as light from a large city in the distance.
Blum, Robert D., Bustos, Edison, Els, Sebastian G., Gillett, Paul, Gregory, Brooke, Riddle, Reed L., Schöck, Matthias, Seguel, Juan, Skidmore, Warren, Travouillon, Tony, Vasquez, Joselino, Walker, David   +11 more
core   +1 more source

Measuring Light Pollution with Fisheye Lens Imagery from A Moving Boat, A Proof of Concept [PDF]

, 2017
Near all-sky imaging photometry was performed from a boat on the Gulf of Aqaba to measure the night sky brightness in a coastal environment. The boat was not anchored, and therefore drifted and rocked.
Hänel, Andreas, Hölker, Franz, Jechow, Andreas, Kolláth, Zoltán, Kyba, Christopher C. M., Lerner, Amit, Shashar, Nadav   +6 more
core   +4 more sources

Contextualizing the Global Nursing Care Chain: International Migration and the Status of Nursing in Kerala, India [PDF]

, 2012
In this article I explore the issue of nursing status in Kerala, India and how over time a colonial discourse of caste‐based pollution has given way to a discourse of sexual pollution under expanding migratory opportunities.
Abraham, Al-Jarallah, Anderson, Andrijasevic, Arnold, Basuray, Brush, Brush, Cheng, Choy, Dicicco-Bloom, Dyer, Eapen, Folbre, Gallo, Gallo, George, Gordon, Goss, Gulati, Hadley, Hadley, Healey, Hochschild, Jain, Jeffery, Kelly, Khadria, Kingma, Kurien, Meillassoux, Nair, Nair, Nair, Oishi, Osella, Parreñas, Percot, Percot, Pratt, Raghavachari, Rahman, Rajan, Rajan, Salvage, Saradamoni, Sekhar, Sen, Smith, Solano, Somjee, Stilwell, van Dongen, Varghese, Walton-Roberts, Xiang, Yeates, Yeates, Zachariah, Zaman   +59 more
core   +3 more sources

Heavy elements in Globular Clusters: the role of AGB stars [PDF]

, 2014
Recent observations of heavy elements in Globular Clusters reveal intriguing deviations from the standard paradigm of the early galactic nucleosynthesis.
Cristallo, Sergio, Piersanti, Luciano, Straniero, Oscar   +2 more
core   +1 more source

Quartz Crystal Microbalance with Dissipation (QCM-D) as a Way to Study Adsorption and Adsorbed Layer Characteristics of Hemicelluloses and Other Macromolecules on Thin Cellulose Films: A Review

BioResources, 2023
Cellulose and hemicellulose are abundant renewable resources. Thus, studying the adsorption mechanism of hemicellulose adsorption onto cellulose will contribute to further understanding of the fiber network, promote the development of new materials, and ...
Zijian Dong, Chen Liang, Jinwei Zhao
doaj   +2 more sources

Use of supplementary lighting top screens and effects on greenhouse climate and return on investment [PDF]

, 2008
Discomfort caused by light pollution from greenhouses that apply supplementary lighting is an issue in Dutch society nowadays. At this moment Dutch legislation requires an opaque screen that reduces light transmission of the greenhouse wall by 95%.
Bongaerts, H.R.M., Henten, E.J., van, Janssen, E.G.O.N., Ooster, A., van 't   +3 more
core   +1 more source