The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform
Orlando L. G. Peres - One of the best experts on this subject based on the ideXlab platform.
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Neutrino decay and Solar Neutrino Seasonal Effect
Proceedings of 38th International Conference on High Energy Physics — PoS(ICHEP2016), 2017Co-Authors: Orlando L. G. Peres, R. Picoreti, Marcelo M. Guzzo, P. C. De HolandaAbstract:We consider the possibility of solar neutrino decay as a sub-leading Effect on their propagation between production and detection. Using current oscillation data, we set a new lower bound to the $\nu_2$ neutrino lifetime at $\tau_2\, /\, m_2 \geq 7.2 \times 10^{-4}\,\,\hbox{s}\,.\,\hbox{eV}^{-1}$ at $99\%\,$C.L.. Also, we show how Seasonal variations in the solar neutrino data can give interesting additional information about neutrino lifetime.
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Neutrino decay and solar neutrino Seasonal Effect
Physics Letters B, 2016Co-Authors: R. Picoreti, Marcelo M. Guzzo, P. C. De Holanda, Orlando L. G. PeresAbstract:Abstract We consider the possibility of solar neutrino decay as a sub-leading Effect on their propagation between production and detection. Using current oscillation data, we set a new lower bound to the ν 2 neutrino lifetime at τ 2 / m 2 ≥ 7.2 × 10 − 4 s . eV − 1 at 99 % C.L. Also, we show how Seasonal variations in the solar neutrino data can give interesting additional information about neutrino lifetime.
Thada Sukhapunnapha - One of the best experts on this subject based on the ideXlab platform.
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Duality of Seasonal Effect and River Bend in Relation to Water Quality in the Chao Phraya River
Water, 2019Co-Authors: Guangwei Huang, Han Xue, Huan Liu, Chaiwat Ekkawatpanit, Thada SukhapunnaphaAbstract:The present study conducted a field survey of water quality along the Chao Phraya River during the past three years. The main objective was to better understand the spatial–temporal variations in water quality in relation to season and channel morphology. It assessed the water quality in terms of chemical parameters, bacteria, and phytoplankton. The results revealed a duality of Seasonal Effect for nutrients. The rainy season degraded the water quality by increasing the nutrient concentration in the waterway in the beginning, but cleaned it up by dilution in the end. However, this duality did not apply to Escherichia coli (E. coli), for which the highest level occurred during the second half of the rainy season and a sag curve variation pattern was displayed along the mainstream. Another duality found by this study is that there was no statistically significant difference in water quality in terms of chemical parameters between a river bend and the straight channel shortcutting the bend, but significant differences in the level of E. coli and the phytoplankton community structure were observed between the two. Of particular note, the present study revealed a coexistence of a saproxenous species (algae found in clean water) with a harmful species in the bend river reach.
Anat Scher - One of the best experts on this subject based on the ideXlab platform.
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Seasonal Effect on infants' sleep regulation: a preliminary study in a Mediterranean climate.
Chronobiology international, 2012Co-Authors: Dina Cohen, Osnat Atun-einy, Anat ScherAbstract:Infants' sleep-wake rhythms are influenced by multiple factors, including developmental and contextual aspects, as well as circadian cycles. Empirical studies that address the Seasonal impact on infants' sleep are scarce. The present study examined aspects of sleep schedule and quality, comparing summer and winter months in a Mediterranean climate. This report is based on a convenience sample of 34 healthy 7-mo-olds, an age in which sleep is well consolidated and regulated compared with the first few months of life. Sleep was measured with actigraphy, in the home context. It was found that compared with winter, in the summer months, sleep onset occurred at a later hour, and more motor activity during sleep was detected. Although the overall sleep quality, as defined by sleep efficiency score, was similar in the two seasons, in the summer, more active sleep was observed. The authors discuss the finding in terms of circadian rhythms, developmental characteristics, as well as possible environmental factors and family routines, and call for more studies, in different climates and geographical zones, and in different developmental periods.
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Seasonal Effect on Infants' Sleep Regulation: A Preliminary Study in a
2012Co-Authors: Dina Cohen, Osnat Atun-einy, Anat ScherAbstract:Infants’ sleep-wake rhythms are influenced by multiple factors, including developmental and contextual aspects, as well as circadian cycles. Empirical studies that address the Seasonal impact on infants’ sleep are scarce. The present study examined aspects of sleep schedule and quality, comparing summer and winter months in a Mediterranean climate. This report is based on a convenience sample of 34 healthy 7-mo-olds, an age in which sleep is well consolidated and regulated compared with the first few months of life. Sleep was measured with actigraphy, in the home context. It was found that compared with winter, in the summer months, sleep onset occurred at a later hour, and more motor activity during sleep was detected. Although the overall sleep quality, as defined by sleep efficiency score, was similar in the two seasons, in the summer, more active sleep was observed. The authors discuss the finding in terms of circadian rhythms, developmental characteristics, as well as possible environmental factors and family routines, and call for more studies, in different climates and geographical zones, and in different developmental periods. (Author correspondence: cohen.dini@gmail.com or anats@edu.haifa.ac.il)
R. Picoreti - One of the best experts on this subject based on the ideXlab platform.
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Neutrino decay and Solar Neutrino Seasonal Effect
Proceedings of 38th International Conference on High Energy Physics — PoS(ICHEP2016), 2017Co-Authors: Orlando L. G. Peres, R. Picoreti, Marcelo M. Guzzo, P. C. De HolandaAbstract:We consider the possibility of solar neutrino decay as a sub-leading Effect on their propagation between production and detection. Using current oscillation data, we set a new lower bound to the $\nu_2$ neutrino lifetime at $\tau_2\, /\, m_2 \geq 7.2 \times 10^{-4}\,\,\hbox{s}\,.\,\hbox{eV}^{-1}$ at $99\%\,$C.L.. Also, we show how Seasonal variations in the solar neutrino data can give interesting additional information about neutrino lifetime.
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Neutrino decay and solar neutrino Seasonal Effect
Physics Letters B, 2016Co-Authors: R. Picoreti, Marcelo M. Guzzo, P. C. De Holanda, Orlando L. G. PeresAbstract:Abstract We consider the possibility of solar neutrino decay as a sub-leading Effect on their propagation between production and detection. Using current oscillation data, we set a new lower bound to the ν 2 neutrino lifetime at τ 2 / m 2 ≥ 7.2 × 10 − 4 s . eV − 1 at 99 % C.L. Also, we show how Seasonal variations in the solar neutrino data can give interesting additional information about neutrino lifetime.
Guangwei Huang - One of the best experts on this subject based on the ideXlab platform.
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Duality of Seasonal Effect and River Bend in Relation to Water Quality in the Chao Phraya River
Water, 2019Co-Authors: Guangwei Huang, Han Xue, Huan Liu, Chaiwat Ekkawatpanit, Thada SukhapunnaphaAbstract:The present study conducted a field survey of water quality along the Chao Phraya River during the past three years. The main objective was to better understand the spatial–temporal variations in water quality in relation to season and channel morphology. It assessed the water quality in terms of chemical parameters, bacteria, and phytoplankton. The results revealed a duality of Seasonal Effect for nutrients. The rainy season degraded the water quality by increasing the nutrient concentration in the waterway in the beginning, but cleaned it up by dilution in the end. However, this duality did not apply to Escherichia coli (E. coli), for which the highest level occurred during the second half of the rainy season and a sag curve variation pattern was displayed along the mainstream. Another duality found by this study is that there was no statistically significant difference in water quality in terms of chemical parameters between a river bend and the straight channel shortcutting the bend, but significant differences in the level of E. coli and the phytoplankton community structure were observed between the two. Of particular note, the present study revealed a coexistence of a saproxenous species (algae found in clean water) with a harmful species in the bend river reach.
