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Author  |
Chaiwat, Thanee |
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Title |
Night Lights, Economic Growth, and Spatial Inequality of Thailand |
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Journal Article |
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Year |
2016 |
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PIER Discussion Papers |
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26 |
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Remote Sensing |
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Abstract |
This paper explains the method using a set of night light imaginary to estimate GPP of Thailand. This method is quite new but widely acceptable in the area of economics because luminosity of night lights is normally based on the amount of economic activities in each area. The results showed a high and significant correlation betweein the night lights and the GPP growth. Even if the estimation was controlled by some specific factors, such as population density, timing size of agricultural or manufacturing sector, the relationship is still robust. After this relationship is confirmed in the provincial level of Thailand, this research applied the results to show the relationship between economic values and spatial inequality, which indicates new understanding about spatial development patterns. |
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Thai |
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GFZ @ kyba @ |
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2170 |
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Chaput, J.-P.; Weippert, M.; LeBlanc, A.G.; Hjorth, M.F.; Michaelsen, K.F.; Katzmarzyk, P.T.; Tremblay, M.S.; Barreira, T.V.; Broyles, S.T.; Fogelholm, M.; Hu, G.; Kuriyan, R.; Kurpad, A.; Lambert, E.V.; Maher, C.; Maia, J.; Matsudo, V.; Olds, T.; Onywera, V.; Sarmiento, O.L.; Standage, M.; Tudor-Locke, C.; Zhao, P.; Sjodin, A.M. |
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Title |
Are Children Like Werewolves? Full Moon and Its Association with Sleep and Activity Behaviors in an International Sample of Children |
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Journal Article |
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Year |
2016 |
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Frontiers in Pediatrics |
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Front Pediatr |
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4 |
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24 |
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Keywords |
Human Health; Moonlight |
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In order to verify if the full moon is associated with sleep and activity behaviors, we used a 12-country study providing 33,710 24-h accelerometer recordings of sleep and activity. The present observational, cross-sectional study included 5812 children ages 9-11 years from study sites that represented all inhabited continents and wide ranges of human development (Australia, Brazil, Canada, China, Colombia, Finland, India, Kenya, Portugal, South Africa, United Kingdom, and United States). Three moon phases were used in this analysis: full moon (+/-4 days; reference), half moon (+/-5-9 days), and new moon (+/-10-14 days) from nearest full moon. Nocturnal sleep duration, moderate-to-vigorous physical activity (MVPA), light-intensity physical activity (LPA), and total sedentary time (SED) were monitored over seven consecutive days using a waist-worn accelerometer worn 24 h a day. Only sleep duration was found to significantly differ between moon phases (~5 min/night shorter during full moon compared to new moon). Differences in MVPA, LPA, and SED between moon phases were negligible and non-significant (<2 min/day difference). There was no difference in the associations between study sites. In conclusion, sleep duration was 1% shorter at full moon compared to new moon, while activity behaviors were not significantly associated with the lunar cycle in this global sample of children. Whether this seemingly minimal difference is clinically meaningful is questionable. |
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University of Copenhagen , Copenhagen , Denmark |
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2296-2360 |
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PMID:27047907; PMCID:PMC4805596 |
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LoNNe @ kyba @ |
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1556 |
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Chen, H.; Sun, C.; Chen, X.; Chiang, K.; Xiong, X. |
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On-orbit calibration and performance of S-NPP VIIRS DNB |
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Conference Article |
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2016 |
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Proc. SPIE 9881, Earth Observing Missions and Sensors: Development, Implementation, and Characterization IV, 98812B (May 2, 2016) |
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Proc. SPIE 9881 |
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Remote Sensing; VIIRS, Suomi; VIIRS DNB; day-night band; calibration; Land Science Investigator-led Processing Systems; SIPS; Orbital dynamics; Sensors; Stray light; Contamination; Diffusers; Earth sciences; Equipment and services |
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The S-NPP VIIRS instrument has successfully operated since its launch in October 2011. The VIIRS Day-Night Band (DNB) is a panchromatic channel covering wavelengths from 0.5 to 0.9 μm that is capable of observing Earth scenes during both day and nighttime orbits at a spatial resolution of 750 m. To cover the large dynamic range, the DNB operates at low, mid, or high gain stages, and it uses an onboard solar diffuser (SD) for its low gain stage calibration. The SD observations also provide a means to compute gain ratios of low-to-mid and mid-to-high gain stages. This paper describes the DNB on-orbit calibration methodologies used by the VIIRS Characterization Support Team (VCST) in supporting the NASA earth science community with consistent VIIRS sensor data records (SDRs) made available by the Land Science Investigator-led Processing Systems (SIPS). It provides an assessment and update of DNB on-orbit performance, including the SD degradation in the DNB spectral range, detector gain and gain ratio trending, stray light contamination and its correction. Also presented in this paper are performance validations based on earth scenes and lunar observations. |
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Science Systems and Applications, Inc. |
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SPIE |
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English |
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English |
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IDA @ john @ |
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1473 |
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Cheng, Y.; Zhao, L.; Wan, W.; Li, L.; Yu, T.; Gu, X. |
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Title |
Extracting urban areas in China using DMSP/OLS nighttime light data integrated with biophysical composition information |
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Journal Article |
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2016 |
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Journal of Geographical Sciences |
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J. Geogr. Sci. |
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26 |
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3 |
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325-338 |
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Remote Sensing |
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1009-637X |
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LoNNe @ kyba @ |
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1380 |
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Author |
Cheung, I.N.; Zee, P.C.; Shalman, D.; Malkani, R.G.; Kang, J.; Reid, K.J. |
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Title |
Morning and Evening Blue-Enriched Light Exposure Alters Metabolic Function in Normal Weight Adults |
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Journal Article |
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Year |
2016 |
Publication |
PloS one |
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PLoS One |
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Volume |
11 |
Issue |
5 |
Pages |
e0155601 |
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Keywords |
Human Health |
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Increasing evidence points to associations between light-dark exposure patterns, feeding behavior, and metabolism. This study aimed to determine the acute effects of 3 hours of morning versus evening blue-enriched light exposure compared to dim light on hunger, metabolic function, and physiological arousal. Nineteen healthy adults completed this 4-day inpatient protocol under dim light conditions (<20lux). Participants were randomized to 3 hours of blue-enriched light exposure on Day 3 starting either 0.5 hours after wake (n = 9; morning group) or 10.5 hours after wake (n = 10; evening group). All participants remained in dim light on Day 2 to serve as their baseline. Subjective hunger and sleepiness scales were collected hourly. Blood was sampled at 30-minute intervals for 4 hours in association with the light exposure period for glucose, insulin, cortisol, leptin, and ghrelin. Homeostatic model assessment of insulin resistance (HOMA-IR) and area under the curve (AUC) for insulin, glucose, HOMA-IR and cortisol were calculated. Comparisons relative to baseline were done using t-tests and repeated measures ANOVAs. In both the morning and evening groups, insulin total area, HOMA-IR, and HOMA-IR AUC were increased and subjective sleepiness was reduced with blue-enriched light compared to dim light. The evening group, but not the morning group, had significantly higher glucose peak value during blue-enriched light exposure compared to dim light. There were no other significant differences between the morning or the evening groups in response to blue-enriched light exposure. Blue-enriched light exposure acutely alters glucose metabolism and sleepiness, however the mechanisms behind this relationship and its impacts on hunger and appetite regulation remain unclear. These results provide further support for a role of environmental light exposure in the regulation of metabolism. |
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Department of Neurology, Northwestern University, Chicago, Illinois, United States of America |
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1932-6203 |
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PMID:27191727 |
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Call Number |
LoNNe @ kyba @ |
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1457 |
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