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Author |
Abay, K.A.; Amare, M. |
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Title |
Night light intensity and women's body weight: Evidence from Nigeria |
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Journal Article |
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Year |
2018 |
Publication |
Economics and Human Biology |
Abbreviated Journal |
Econ Hum Biol |
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Volume |
31 |
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Pages |
238-248 |
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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 |
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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. |
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International Food Policy Research Institute (IFPRI), USA. Electronic address: M.Amare@cgiar.org |
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1570-677X |
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PMID:30312904 |
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GFZ @ kyba @ |
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2714 |
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Author |
Agnew, J.; Gillespie, T.W.; Gonzalez, J.; Min, B. |
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Title |
Baghdad Nights: Evaluating the US Military ‘Surge’ Using Nighttime Light Signatures |
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Journal Article |
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Year |
2008 |
Publication |
Environment and Planning A |
Abbreviated Journal |
Environ Plan A |
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Volume |
40 |
Issue |
10 |
Pages |
2285-2295 |
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Keywords |
Remote Sensing; Commentary |
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0308-518X |
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GFZ @ kyba @ |
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2028 |
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Al Zahrani, M.H.; Omar, A.I.; Abdoon, A.M.O.; Ibrahim, A.A.; Alhogail, A.; Elmubarak, M.; Elamin, Y.E.; AlHelal, M.A.; Alshahrani, A.M.; Abdelgader, T.M.; Saeed, I.; El Gamri, T.B.; Alattas, M.S.; Dahlan, A.A.; Assiri, A.M.; Maina, J.; Li, X.H.; Snow, R.W. |
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Title |
Cross-border movement, economic development and malaria elimination in the Kingdom of Saudi Arabia |
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Journal Article |
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Year |
2018 |
Publication |
BMC Medicine |
Abbreviated Journal |
BMC Med |
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16 |
Issue |
1 |
Pages |
98 |
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Keywords |
Remote Sensing; Human Health |
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Abstract |
Malaria at international borders presents particular challenges with regards to elimination. International borders share common malaria ecologies, yet neighboring countries are often at different stages of the control-to-elimination pathway. Herein, we present a case study on malaria, and its control, at the border between Saudi Arabia and Yemen. Malaria program activity reports, case data, and ancillary information have been assembled from national health information systems, archives, and other related sources. Information was analyzed as a semi-quantitative time series, between 2000 and 2017, to provide a plausibility framework to understand the possible contributions of factors related to control activities, conflict, economic development, migration, and climate. The malaria recession in the Yemeni border regions of Saudi Arabia is a likely consequence of multiple, coincidental factors, including scaled elimination activities, cross-border vector control, periods of low rainfall, and economic development. The temporal alignment of many of these factors suggests that economic development may have changed the receptivity to the extent that it mitigated against surges in vulnerability posed by imported malaria from its endemic neighbor Yemen. In many border areas of the world, malaria is likely to be sustained through a complex congruence of factors, including poverty, conflict, and migration. |
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Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK. rsnow@kemri-wellcome.org |
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1741-7015 |
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PMID:29940950 |
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Call Number |
GFZ @ kyba @ |
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1948 |
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Author |
Alabia, I.; Dehara, M.; Saitoh, S.-I.; Hirawake, T. |
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Title |
Seasonal Habitat Patterns of Japanese Common Squid (Todarodes Pacificus) Inferred from Satellite-Based Species Distribution Models |
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Journal Article |
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Year |
2016 |
Publication |
Remote Sensing |
Abbreviated Journal |
Remote Sensing |
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Volume |
8 |
Issue |
11 |
Pages |
921 |
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Keywords |
Remote Sensing; Animals |
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Abstract |
The understanding of the spatio-temporal distributions of the species habitat in the marine environment is central to effectual resource management and conservation. Here, we examined the potential habitat distributions of Japanese common squid (Todarodes pacificus) in the Sea of Japan during a four-year period. The seasonal patterns of preferential habitat were inferred from species distribution models, built using squid occurrences detected from night-time visible images and remotely-sensed environmental factors. The predicted squid habitat (i.e., areas with high habitat suitability) revealed strong seasonal variability, characterized by a reduction of potential habitat, confined off of the southern part of the basin during the winter–spring period (December–May). Apparent expansion of preferential habitat occurred during summer–autumn months (June–November), concurrent with the formation of highly suitable habitat patches in certain regions of the Sea of Japan. These habitat distribution patterns were in response to changes in oceanographic conditions and synchronous with seasonal migration of squid. Moreover, the most important variables regulating the spatio-temporal patterns of suitable habitat were sea surface temperature, depth, sea surface height anomaly, and eddy kinetic energy. These variables could affect the habitat distributions through their impacts on growth and survival of squid, local nutrient transport, and the availability of favorable spawning and feeding grounds. |
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2072-4292 |
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no |
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Call Number |
LoNNe @ kyba @ |
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1551 |
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Author |
Alamús, R.; Bará, S.; Corbera, J.; Escofet, J.; Palà , V.; Pipia, L.; Tardà, A. |
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Title |
Ground-based hyperspectral analysis of the urban nightscape |
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Journal Article |
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Year |
2017 |
Publication |
ISPRS Journal of Photogrammetry and Remote Sensing |
Abbreviated Journal |
ISPRS Journal of Photogrammetry and Remote Sensing |
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Volume |
124 |
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16-26 |
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Keywords |
Instrumentation; Remote Sensing |
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Abstract |
Airborne hyperspectral cameras provide the basic information to estimate the energy wasted skywards by outdoor lighting systems, as well as to locate and identify their sources. However, a complete characterization of the urban light pollution levels also requires evaluating these effects from the city dwellers standpoint, e.g. the energy waste associated to the excessive illuminance on walls and pavements, light trespass, or the luminance distributions causing potential glare, to mention but a few. On the other hand, the spectral irradiance at the entrance of the human eye is the primary input to evaluate the possible health effects associated with the exposure to artificial light at night, according to the more recent models available in the literature. In this work we demonstrate the possibility of using a hyperspectral imager (routinely used in airborne campaigns) to measure the ground-level spectral radiance of the urban nightscape and to retrieve several magnitudes of interest for light pollution studies. We also present the preliminary results from a field campaign carried out in the downtown of Barcelona. |
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0924-2716 |
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LoNNe @ kyba @ |
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1613 |
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