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Author Wang, W.; Cheng, H.; Zhang, L. url  doi
openurl 
  Title Poverty assessment using DMSP/OLS night-time light satellite imagery at a provincial scale in China Type Journal Article
  Year 2012 Publication Advances in Space Research Abbreviated Journal Advances in Space Research  
  Volume 49 Issue (down) 8 Pages 1253-1264  
  Keywords DMSP/OLS night-time light; Provincial scale; Socio-economic development; Principal component analysis; Poverty index; DMSP-OLS; remote sensing  
  Abstract All countries around the world and many international bodies, including the United Nations Development Program (UNDP), United Nations Food and Agricultural Organization (FAO), the International Fund for Agricultural Development (IFAD) and the International Labor Organization (ILO), have to eliminate rural poverty. Estimation of regional poverty level is a key issue for making strategies to eradicate poverty. Most of previous studies on regional poverty evaluations are based on statistics collected typically in administrative units. This paper has discussed the deficiencies of traditional studies, and attempted to research regional poverty evaluation issues using 3-year DMSP/OLS night-time light satellite imagery. In this study, we adopted 17 socio-economic indexes to establish an integrated poverty index (IPI) using principal component analysis (PCA), which was proven to provide a good descriptor of poverty levels in 31 regions at a provincial scale in China. We also explored the relationship between DMSP/OLS night-time average light index and the poverty index using regression analysis in SPSS and a good positive linear correlation was modelled, with R2 equal to 0.854. We then looked at provincial poverty problems in China based on this correlation. The research results indicated that the DMSP/OLS night-time light data can assist analysing provincial poverty evaluation issues.  
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  ISSN 0273-1177 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial 206  
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Author Roy Chowdhury, P.K.; Maithani, S.; Dadhwal, V.K. url  doi
openurl 
  Title Estimation of urban population in Indo-Gangetic Plains using night-time OLS data Type Journal Article
  Year 2012 Publication International Journal of Remote Sensing Abbreviated Journal International Journal of Remote Sensing  
  Volume 33 Issue (down) 8 Pages 2498-2515  
  Keywords DMSP-OLS; satellite; remote sensing; Indo-Gangetic Plains; Urban Population; Urban environment  
  Abstract In this study the applicability of a night-time Operational Linescan System (OLS) sensor in urban population estimation has been examined. The study area consisted of the Indian portion of the Indo-Gangetic Plains. Using night-time OLS data, urban areas situated in the study area were mapped and their areal extent was determined. A linear relationship between the natural log of the urban area and the natural log of the corresponding population was established. The model was calibrated for the year 2001 and then validated for the year 1995. Subsequently, the model was modified using ancillary factors such as electricity consumption to reduce the error in population estimation. Thus, this study attempted to explore the applicability of nighttime OLS data in urban population estimation.  
  Address Indian Institute of Remote Sensing , Dehradun, 248 001, India  
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  ISSN 0143-1161 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial 226  
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Author Huang, B.J.; Wu, M.S.; Hsu, P.C.; Chen, J.W.; Chen, K.Y. url  doi
openurl 
  Title Development of high-performance solar LED lighting system Type Journal Article
  Year 2010 Publication Energy Conversion and Management Abbreviated Journal Energy Conversion and Management  
  Volume 51 Issue (down) 8 Pages 1669-1675  
  Keywords Stand-alone solar system; Off-grid solar system; Solar-powered lighting; LED lighting; Solar LED lighting; LED; outdoor lighting  
  Abstract The present study developed a high-performance charge/discharge controller for stand-alone solar LED lighting system by incorporating an nMPPO system design, a PWM battery charge control, and a PWM battery discharge control to directly drive the LED. The MPPT controller can then be removed from the stand-alone solar system and the charged capacity of the battery increases 9.7%. For LED driven by PWM current directly from battery, a reliability test for the light decay of LED lamps was performed continuously for 13,200 h. It has shown that the light decay of PWM-driven LED is the same as that of constant-current driven LED. The switching energy loss of the MOSFET in the PWM battery discharge control is less than 1%. Three solar-powered LED lighting systems (18 W, 100 W and 150 W LED) were designed and built. The long-term outdoor field test results have shown that the system performance is satisfactory with the control system developed in the present study. The loss of load probability for the 18 W solar LED system is 14.1% in winter and zero in summer. For the 100 W solar LED system, the loss of load probability is 3.6% in spring.  
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  ISSN 0196-8904 ISBN Medium  
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  Notes Approved no  
  Call Number IDA @ john @ Serial 330  
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Author Stone, E.M.; Jones, G.; Harris, S. url  doi
openurl 
  Title Conserving energy at a cost to biodiversity? Impacts of LED lighting on bats Type Journal Article
  Year 2012 Publication Global Change Biology Abbreviated Journal  
  Volume 18 Issue (down) 8 Pages 2458–2465  
  Keywords Animals; anthropogenic impacts; biodiversity conservation; climate change targets; LED street lights; light pollution; light-emitting diodes  
  Abstract Artificial lighting is a key biodiversity threat and produces 1900 million tonnes of CO 2 emissions globally, more than three times that produced by aviation. The need to meet climate change targets has led to a global increase in energy-efficient light sources such as high-brightness light-emitting diodes (LEDs). Despite the energetic benefits of LEDs, their ecological impacts have not been tested. Using an experimental approach, we show that LED street lights caused a reduction in activity of slow-flying bats ( Rhinolophus hipposideros and Myotis spp.). Both R. hipposideros and Myotis spp. activities were significantly reduced even during low light levels of 3.6 lux. There was no effect of LED lighting on the relatively fast-flying Pipistrellus pipistrellus, Pipistrellus pygmaeus and Nyctalus/Eptesicus spp. We provide the first evidence of the effects of LED lights on bats. Despite having considerable energy-saving benefits, LED lights can potentially fragment commuting routes for bats with associated negative conservation consequences. Our results add to the growing evidence of negative impacts of lighting on a wide range of taxa. We highlight the complexities involved in simultaneously meeting targets for reduction of greenhouse gas emissions and biodiversity loss. New lighting strategies should integrate climate change targets with the cultural, social and ecological impacts of emerging lighting technologies.  
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  Notes Approved no  
  Call Number LoNNe @ christopher.kyba @ Serial 395  
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Author Lahti, T.; Merikanto, I.; Partonen, T. url  doi
openurl 
  Title Circadian clock disruptions and the risk of cancer Type Journal Article
  Year 2012 Publication Annals of Medicine Abbreviated Journal Ann Med  
  Volume 44 Issue (down) 8 Pages 847-853  
  Keywords Human Health; Cell Division; Chronobiology Disorders/*complications/genetics/*physiopathology; Circadian Clocks/*genetics; Humans; Neoplasms/*etiology; Work Schedule Tolerance/physiology  
  Abstract Disrupted circadian rhythms may lead to failures in the control of the cell division cycle and the subsequent malignant cell growth. In order to understand the pathogenesis of cancer more in detail, it is crucial to identify those mechanisms of action which contribute to the loss of control of the cell division cycle. This mini-review focuses on the recent findings concerning the links between the human circadian clock and cancer. Clinical implications concern not only feasible methods for the assessment of the circadian time of an individual or for the determination of the best time for administration of a drug of treatment, but also in the future genetic tests for screening and for planning treatment.  
  Address Department of Mental Health and Substance Abuse Services, National Institute for Health and Welfare, Helsinki, Finland  
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  ISSN 0785-3890 ISBN Medium  
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  Notes PMID:23072403 Approved no  
  Call Number LoNNe @ christopher.kyba @ Serial 513  
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