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Author Gubin, D.; Weinert, D.; Solovieva, S.V.; Durov, A.M.; Litvinova, N.S.; Danilova, L.A.; Prokopiev, N.Y.; Trushnikov, D.Y.; Kartashova, E.A.
Title Melatonin attenuates light-at-night effects on systolic blood pressure and body temperature but does not affect diastolic blood pressure and heart rate circadian rhythms Type Journal Article
Year 2020 Publication Biological Rhythm Research Abbreviated Journal Biological Rhythm Research
Volume 51 Issue 5 Pages 780-793
Keywords Human Health; Melatonin; circadian rhythms; body temperature; blood pressure; heart rate; constant routine; ambient light; light at night; young adults; sex; gender
Abstract Aim of the present study is to assess whether 1.5mg of exogenous melatonin provided under modified CR in constant light (~400 lx) is capable to mimic effects of dark phase. Forty-six young adults (YA), 17–24 years old of both genders were studied under amodified CR protocol for 26 h. Initially, participants were investigated under constant light (CR-LL) and 2 weeks later under the same conditions though 1.5mg melatonin (Melaxen) was given orally at 22:30. Systolic blood pressure (SBP) and diastolic blood pressure (DBP), heart rate (HR) and body temperature (BT) were measured every 2 h. To verify the effect of constant light, formerly published results obtained under light-dark conditions (CR-LD) were reanalyzed.

Administration of 1.5 mg of exogenous melatonin modified the 24 h patterns of BT and SBP within short 3.5 h time window but did not influence DBP and HR. A short-term reduction of SBP and BT for 1.5–3.5 hours was observed. The values in the CR-LL+M group were significantly lower than in CR-LL at 2:00 h. Hence, exogenous melatonin did mimic the scotophase. Though this effect was gender-specific and found only in female YA.

Results of this study prompt further research to qualify and quantify dosage-, duration- and time-dependent differences of melatonin effects, to discern between short-term (acute) and long-term (chronic) melatonin administration, and to clarify its underlying mechanisms.
Address
Corporate Author Thesis
Publisher Taylor & Francis Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0929-1016 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 3388
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Author Meravi, N.; Kumar Prajapati, S.
Title Effect street light pollution on the photosynthetic efficiency of different plants Type Journal Article
Year 2020 Publication Biological Rhythm Research Abbreviated Journal Biological Rhythm Research
Volume 51 Issue 1 Pages 67-75
Keywords Plants; Light pollution; Fv/Fm; Y (NPQ); Y (NO); Fluorescence
Abstract The present study was conducted to study the effect of light pollution on the photosynthetic efficiency of plants growing near to street light. The photosynthetic parameters Fv/Fm (Fm – Fo/Fm); maximum photochemical quantum yield of PS II (photosystem II), Y II (photochemical quantum yield of photosystem II), Y (NPQ), Y (NO) were recorded with the help of JUNIOR‐PAM, Chlorophyll Fluorometer, Heinz Walz GmbH, Germany. It was observed that various parameters were adversely affected and the observed values show that plants is under some sort of stress which may be disturbing their normal physiological processes.
Address sntshprjpt ( at ) rediffmail.com
Corporate Author Thesis
Publisher Taylor & Francis Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0929-1016 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 3408
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Author Pérez-Granados, C.; Schuchmann, K.-L.; Marques, M.I.
Title Vocal activity of the Ferruginous pygmy-owl (Glaucidium brasilianum) is strongly correlated with moon phase and nocturnal temperature Type Journal Article
Year 2021 Publication Ethology Ecology & Evolution Abbreviated Journal Ethology Ecology & Evolution
Volume 33 Issue 1 Pages 62-72
Keywords Animals; Moonlight
Abstract Bird vocal activity is affected by endogenous and exogenous factors. Owl surveys are mainly based on the detection of nocturnal calls, and therefore, the impact of exogenous factors on owls’ vocal activity may have consequences in conservation planning and behavioural studies. However, our current knowledge about the impact of climatic factors and the moon phase on owl calling behaviour is very limited, especially in the Neotropics. We used autonomous recording units to evaluate the effect of air temperature, rainfall, relative air humidity, and percent of the moon illuminated on the vocal occurrence (active/inactive) of the Ferruginous pygmy-owl (Glaucidium brasilianum) over three consecutive moon cycles in the Brazilian Pantanal. Vocal activity was positively associated with the percent of the moon illuminated, with 75% of the nights on which the species was vocally active having a moon illumination percentage higher than 77%. The vocal activity of the species was negatively associated with the nocturnal air temperature, with more vocal activity observed on cooler nights. Relative air humidity and daily rainfall were not associated with the vocal activity of the Ferruginous pygmy-owl. Our study improves the knowledge about the impact of exogenous factors on the calling behaviour of Neotropical owls. We conclude that future surveys aiming to detect the Ferruginous pygmy-owl should be carried out on nights with a high percent of moon illumination (>75%) and nights with low average temperature (< 18 °C).
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0394-9370 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number UP @ altintas1 @ Serial 3279
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Author Blundell, E.; Schaffer, V.; Moyle, B.D.
Title Dark sky tourism and the sustainability of regional tourism destinations Type Journal Article
Year 2020 Publication Tourism Recreation Research Abbreviated Journal Tourism Recreation Research
Volume 45 Issue 4 Pages 549-556
Keywords Skyglow; Dark sky tourism
Abstract Destinations across the globe face severe and potentially irreversible consequences from tourism growth and development. Contemporary approaches such as reducing access or site closures have been identified to increase demand, potentially exacerbating negative impacts. Despite acknowledgement of the impacts of tourism, limited studies have considered the ‘night sky’ as a tourism destination, nor the implications for regional sustainability. Consequently, the aim of this research is to explore the intersection between Dark sky tourism (DST) and sustainability within regional tourism. Semi-structured interviews were conducted in the Murweh Shire, in outback Australia. The analysis revealed sustainability, ethics and education as critical to achieving sustainable DST in a regional setting. A core contribution of this research is a conceptual model for sustainable DST. Future research is required to further explore ethics as a critical, yet often neglected, component of sustainable tourism.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0250-8281 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number UP @ altintas1 @ Serial 3216
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Author Yin, Z.; Li, X.; Tong, F.; Li, Z.; Jendryke, M.
Title Mapping urban expansion using night-time light images from Luojia1-01 and International Space Station Type Journal Article
Year 2020 Publication International Journal of Remote Sensing Abbreviated Journal International Journal of Remote Sensing
Volume 41 Issue 7 Pages 2603-2623
Keywords Remote Sensing; *Night time light; Luojia 1-01; *International space station; China; Wuhan; urban; urban expansion
Abstract Night-time light (NTL) images have been proved as a type of reliable data source to map urban expansion. In this paper, to investigate the potential of using multi-source NTL images at near 100 m resolution to detect urban expansion, we use a Luojia1-01 (LJ1-01) image in 2018 and an International Space Station (ISS) night-time image in 2010 in Wuhan city as experiment images. Based on the multiple linear robust regression model, a process of intercalibration between LJ1-01 imagery and ISS imagery is proposed to build a comparable dataset. To detect urban expansion, using the above images at 130 m resolution, Jeffries-Matusita distance is used as an indicator to select the feature combination with the largest class separability. Among all the candidate combinations, the combination of the LJ1-01 image, the simulated LJ1-01 image, and their ratio best meets our requirements for classification. With this feature combination, a multi-temporal classification method based on Support Vector Machines and Back Propagating (BP) – Neural Network, respectively, is utilized to classify the study area into stable non-urban class, stable urban class, and expanding the urban class. The results of the multi-temporal classification show that the overall accuracy is around 90%, and the Kappa coefficients are larger than 0.84. For each class, the user’s accuracy is larger than 87%, and the producer’s accuracy is larger than 83%. The results of this study indicate that it is feasible to detect urban expansion by using multi-source NTL images at near 100 m resolution.
Address li_rs ( at ) 163.com
Corporate Author Thesis
Publisher Taylor & Francis Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0143-1161 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 3405
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