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Author (up) Lyytimäki, J.
Title Nature's nocturnal services: Light pollution as a non-recognised challenge for ecosystem services research and management Type Journal Article
Year 2013 Publication Ecosystem Services Abbreviated Journal Ecosystem Services
Volume 3 Issue Pages e44-e48
Keywords Economics; Ecosystem disservices; Ecosystem services; Environmental management; Light pollution; Scotoecology; Shifting baselines
Abstract Research focusing on ecosystem services has tackled several of the major drivers of environmental degradation, but it suffers from a blind spot related to light pollution. Light pollution caused by artificial night-time lighting is a global environmental change affecting terrestrial, coastal and marine ecosystems. The long-term effects of the disruption of the natural cycles of light and dark on ecosystem functioning and ecosystem services are largely unknown. Even though additional research is clearly needed, identifying, developing and implementing stringent management actions aimed at reducing inadequately installed, unnecessary or excessive lighting are well justified. This essay argues that management is hampered, because ecosystem services from nocturnal nature are increasingly underappreciated by the public due to shifting baseline syndrome, making most people accustomed to constantly illuminated and light-polluted night environments. Increased attention from scientists, managers and the public is needed in order to explicate the best options for preserving the benefits from natural darkness.
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Series Volume Series Issue Edition
ISSN 2212-0416 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number LoNNe @ christopher.kyba @ Serial 433
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Author (up) Wicht, M.; Kuffer, M.
Title The continuous built-up area extracted from ISS night-time lights to compare the amount of urban green areas across European cities Type Journal Article
Year 2019 Publication European Journal of Remote Sensing Abbreviated Journal European Journal of Remote Sensing
Volume 52 Issue Pages 58-73
Keywords Remote Sensing; continuous built-up area; Planning; International Space Station; ISS; Nighttime light
Abstract The presence of urban green areas significantly impacts urban inhabitants’ well-being. However, comparative studies across European cities are constraint by urban administrative boundaries, which commonly do not match the continuous built-up urban area. This makes comparative research on environmental indicators very problematic, as administrative boundaries are not usually appropriate to define the urban human environment. Therefore, this study aimis to explore the use of night-time light (NTL) images of the International Space Station (ISS) to delineate the continuous built-up area (CBA) of selected European cities to calculate the urban green area share per alternatively derived city extent. The result of the CBA shows that NTL images provide a robust data source to make the urban extent of European cities comparable. By comparing results of different datasets on green areas, we discuss the limitations of existing indicators and opportunities for new ones. Results show that green areas are rarely in close proximity to human living environment, even though the share of urban green areas within the CBA might be larger, as in comparison to the administrative boundary. We conclude that ISS NTL imagery is very suitable for mapping the CBA when aiming at comparability of environmental indicators across cities.
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ISSN 2279-7254 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 2506
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Author (up) Yasuniwa, Y.; Izumi, H.; Wang, K.-Y.; Shimajiri, S.; Sasaguri, Y.; Kawai, K.; Kasai, H.; Shimada, T.; Miyake, K.; Kashiwagi, E.; Hirano, G.; Kidani, A.; Akiyama, M.; Han, B.; Wu, Y.; Ieiri, I.; Higuchi, S.; Kohno, K.
Title Circadian disruption accelerates tumor growth and angio/stromagenesis through a Wnt signaling pathway Type Journal Article
Year 2010 Publication PloS one Abbreviated Journal PLoS One
Volume 5 Issue 12 Pages e15330
Keywords Animals; *Circadian Rhythm; Disease Progression; *Gene Expression Regulation, Neoplastic; HeLa Cells; Humans; Male; Mice; Mice, Inbred BALB C; Mice, Nude; Neoplasm Transplantation; Neoplasms/*pathology; *Neovascularization, Pathologic; Nerve Tissue Proteins/metabolism; Skin/metabolism; Vascular Endothelial Growth Factor A/metabolism; Wnt Proteins/*metabolism; Oncogenesis
Abstract Epidemiologic studies show a high incidence of cancer in shift workers, suggesting a possible relationship between circadian rhythms and tumorigenesis. However, the precise molecular mechanism played by circadian rhythms in tumor progression is not known. To identify the possible mechanisms underlying tumor progression related to circadian rhythms, we set up nude mouse xenograft models. HeLa cells were injected in nude mice and nude mice were moved to two different cases, one case is exposed to a 24-hour light cycle (L/L), the other is a more “normal” 12-hour light/dark cycle (L/D). We found a significant increase in tumor volume in the L/L group compared with the L/D group. In addition, tumor microvessels and stroma were strongly increased in L/L mice. Although there was a hypervascularization in L/L tumors, there was no associated increase in the production of vascular endothelial cell growth factor (VEGF). DNA microarray analysis showed enhanced expression of WNT10A, and our subsequent study revealed that WNT10A stimulates the growth of both microvascular endothelial cells and fibroblasts in tumors from light-stressed mice, along with marked increases in angio/stromagenesis. Only the tumor stroma stained positive for WNT10A and WNT10A is also highly expressed in keloid dermal fibroblasts but not in normal dermal fibroblasts indicated that WNT10A may be a novel angio/stromagenic growth factor. These findings suggest that circadian disruption induces the progression of malignant tumors via a Wnt signaling pathway.
Address Department of Molecular Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
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Language English Summary Language Original Title
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ISSN 1932-6203 ISBN Medium
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Notes PMID:21203463; PMCID:PMC3009728 Approved no
Call Number IDA @ john @ Serial 162
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