| Records |
| Author |
Abay, K.A.; Amare, M. |
| Title |
Night light intensity and women's body weight: Evidence from Nigeria |
Type |
Journal Article |
| Year |
2018 |
Publication |
Economics and Human Biology |
Abbreviated Journal |
Econ Hum Biol |
| Volume |
31 |
Issue |
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Pages |
238-248 |
| Keywords |
Remote Sensing; Human Health; Adolescent; Adult; Body Mass Index; *Body Weight; Cross-Sectional Studies; Female; Health Surveys; Humans; Lighting/*statistics & numerical data; Middle Aged; Nigeria/epidemiology; Obesity/epidemiology; Overweight/*epidemiology; Prevalence; *Urbanization; Young Adult; *Bmi; *Nigeria; *Night light; *Obesity; *Overweight; *Urbanization |
| Abstract |
The prevalence of overweight and obesity are increasing in many African countries and hence becoming regional public health challenges. We employ satellite-based night light intensity data as a proxy for urbanization to investigate the relationship between urbanization and women's body weight. We use two rounds of the Demographic and Health Survey data from Nigeria. We employ both nonparametric and parametric estimation approaches that exploit both the cross-sectional and longitudinal variations in night light intensities. Our empirical analysis reveals nonlinear relationships between night light intensity and women's body weight measures. Doubling the sample's average level of night light intensity is associated with up to a ten percentage point increase in the probability of overweight. However, despite the generally positive relationship between night light intensity and women's body weight, the strength of the relationship varies across the assorted stages of night light intensity. Early stages of night light intensity are not significantly associated with women's body weight, while higher stages of nightlight intensities are associated with higher rates of overweight and obesity. Given that night lights are strong predictors of urbanization and related economic activities, our results hint at nonlinear relationships between various stages of urbanization and women's body weight. |
| Address |
International Food Policy Research Institute (IFPRI), USA. Electronic address: M.Amare@cgiar.org |
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English |
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| ISSN |
1570-677X |
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| Notes |
PMID:30312904 |
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| Call Number |
GFZ @ kyba @ |
Serial |
2714 |
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| Author |
Aceituno, J.; Sánchez, S.F.; Aceituno, F.J.; GaladÃ-EnrÃquez, D.; Negro, J.J.; Soriguer, R.C.; Gomez, G.S. |
| Title |
An All-Sky Transmission Monitor: ASTMON |
Type |
Journal Article |
| Year |
2011 |
Publication |
Publications of the Astronomical Society of the Pacific |
Abbreviated Journal |
Publications of the Astronomical Society of the Pacific |
| Volume |
123 |
Issue |
907 |
Pages |
1076-1086 |
| Keywords |
monitoring; light at night; light pollution; skyglow |
| Abstract |
We present here the All-Sky Transmission Monitor (ASTMON), designed to perform a continuous monitoring of the surface brightness of the complete night sky in several bands. The data acquired are used to derive, in addition, a subsequent map of the multiband atmospheric extinction at any location in the sky and a map of the cloud coverage. The instrument has been manufactured to withstand extreme weather conditions and to remain operative. Designed to be fully robotic, it is ideal to be installed outdoors as a permanent monitoring station. The preliminary results based on two of the currently operative units (at Doñana National Park, Huelva, and at the Calar Alto Observatory, AlmerÃa, Spain) are presented here. The parameters derived using ASTMON are in good agreement with those previously reported, which illustrates the validity of the design and the accuracy of the manufacturing. The information provided by this instrument will be presented in forthcoming articles, once we have accumulated a statistically significant amount of data. |
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0004-6280 |
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IDA @ john @ |
Serial |
195 |
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| Author |
Addison, D.; Stewart, B. |
| Title |
Nighttime Lights Revisited: The Use of Nighttime Lights Data as a Proxy for Economic Variables |
Type |
Report |
| Year |
2015 |
Publication |
World Bank Group Policy Research Working Papers |
Abbreviated Journal |
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Issue |
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Pages |
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| Keywords |
Economics; earth observation; satellite imagery; DMSP-OLS; NPP-VIIRS; gross domestic product; electric power consumption; capital; population; linear regression; night-time light data; economic monitoring |
| Abstract |
The growing availability of free or inexpensive satellite imagery has inspired many researchers to investigate the use of earth observation data for monitoring economic activity around the world. One of the most popular earth observation data sets is the so-called nighttime lights from the Defense Meteorological Satellite Program. Researchers have found positive correlations between nighttime lights and several economic variables. These correlations are based on data measured in levels, with a cross-section of observations within a single time period across countries or other geographic units. The findings suggest that nighttime lights could be used as a proxy for some economic variables, especially in areas or times where data are weak or unavailable. Yet, logic suggests that nighttime lights cannot serve as a good proxy for monitoring the within-in country growth rates all of these variables. Examples examined this paper include constant price gross domestic product, nonagricultural gross domestic product, manufacturing value
added, and capital stocks, as well as electricity consumption, total population, and urban population. The study finds that the Defense Meteorological Satellite Program data are quite noisy and therefore the resulting growth elasticities of Defense Meteorological Satellite Program nighttime lights with respect to most of these socioeconomic variables are low, unstable over time, and generate little explanatory power. The one exception for which Defense Meteorological Satellite Program nighttime lights could serve as a proxy is electricity consumption, measured in 10-year intervals. It is hoped that improved data from the recently launched Suomi National Polar-Orbiting Partnership satellite will help expand or improve these outcomes. Testing this should be an important next step. |
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DAddison(at)worldbank.org |
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World Bank Group |
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English |
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English |
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IDA @ john @ |
Serial |
1363 |
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| Author |
Ahn, H.; Lee, S.; Jo, E. |
| Title |
Assessment on Lighting Management Zones for Light pollution in Gwangju Metropolitan City |
Type |
Journal Article |
| Year |
2018 |
Publication |
한국태양에너지학회 학술대회논문집 |
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Lighting; Planning |
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GFZ @ kyba @ |
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1960 |
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| Author |
Allema, A.B.; Rossing, A.H.; van der Werf, W.; Heusinkveld, B.G.; Bukovinszky, T.; Steingröver, E.; van Lenteren, C. |
| Title |
Effect of light quality on movement of Pterostichus melanarius (Coleoptera: Carabidae) |
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Journal Article |
| Year |
2012 |
Publication |
Journal of Applied Entomology |
Abbreviated Journal |
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136 |
Issue |
10 |
Pages |
793–800 |
| Keywords |
Animals; insects; movement activity; movement behaviour; movement speed; red light sensitivity; resting behaviour |
| Abstract |
Behaviour of nocturnal insects is routinely observed under red light, but it is unclear how the behaviour under red light compares to behaviour in complete darkness, or under a source of white light. Here, we measure movement behaviour of the nocturnal carabid beetle Pterostichus melanarius Illiger (Coleoptera: Carabidae) using camera recording under a near-infrared (nir), red or white radiation source. Red light significantly reduced movement speed in females similar to the effect of white light and different from nir. Also movement activity and pause length were affected by radiation source, with a significant difference between nir and white light, and with intermediate values in red light. The results presented here indicate that P. melanarius has different movement behaviour under the three radiation sources and suggest that nir rather than red radiation is most appropriate for measuring behaviour in total darkness. However, in the field total darkness is rare both because of natural light sources such as the moon and stars but increasingly also because of ecological light pollution, and therefore red light may still be of use for observing ecologically and practically relevant natural night-time behaviour. |
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LoNNe @ christopher.kyba @ |
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385 |
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