title: Spectroscopy of OSSO and other sulfur compounds thought to be present in the Venus atmosphere.

authors: Frandsen, Benjamin N.

subjects: Kinetic parameters

abstract: The spectroscopy of cis-OSSO and trans-OSSO is explored and put into the context of the Venusian atmosphere, along with other sulfur compounds potentially present there, namely, S₂O, C₁-S₂O₂, trigonal-S₂O₂, and S₃. UV-vis spectra were calculated using the nuclear ensemble approach. The calculated OSSO spectra are shown to match well with the 320-400 nm near-UV absorption previously measured on Venus, and we discuss the challenges of assigning OSSO as the Venusian near-UV absorber. The largest source of uncertainty is getting accurate concentrations of sulfur monoxide (³SO) in the upper cloud layer of Venus (60-70 km altitude) since the ³SO self-reaction is what causes cis- and trans-OSSO to form. Additionally, we employed the matrix-isolation technique to trap OSSO formed by microwave discharging a gas mixture of argon and SO₂ and then depositing the mixture onto a cold window (6-12 K). Anharmonic vibrational transition frequencies and intensities were calculated at the coupled cluster level to corroborate the matrix-isolation FTIR spectra. The computationally calculated UV-vis and experimentally recorded IR spectra presented in this work aid future attempts at detecting these sulfur compounds in the Venusian atmosphere.

text: Spectroscopy of OSSO and other sulfur compounds thought to be present in the Venus atmosphere. The spectroscopy of cis-OSSO and trans-OSSO is explored and put into the context of the Venusian atmosphere, along with other sulfur compounds potentially present there, namely, S₂O, C₁-S₂O₂, trigonal-S₂O₂, and S₃. UV-vis spectra were calculated using the nuclear ensemble approach. The calculated OSSO spectra are shown to match well with the 320-400 nm near-UV absorption previously measured on Venus, and we discuss the challenges of assigning OSSO as the Venusian near-UV absorber. The largest source of uncertainty is getting accurate concentrations of sulfur monoxide (³SO) in the upper cloud layer of Venus (60-70 km altitude) since the ³SO self-reaction is what causes cis- and trans-OSSO to form. Additionally, we employed the matrix-isolation technique to trap OSSO formed by microwave discharging a gas mixture of argon and SO₂ and then depositing the mixture onto a cold window (6-12 K). Anharmonic vibrational transition frequencies and intensities were calculated at the coupled cluster level to corroborate the matrix-isolation FTIR spectra. The computationally calculated UV-vis and experimentally recorded IR spectra presented in this work aid future attempts at detecting these sulfur compounds in the Venusian atmosphere.

year: 2020

title: ‘You’re never too old’: beliefs about physical activity and playing sport in later life

authors: Grant, Bevan C.

subjects: physical activity

abstract: It was evident from interviews with 15 men and women over 70 years of age that the experiences derived from being physically active and playing sport in later life are expansive, dynamic and completely imbued with multiple interpretations. Furthermore, their beliefs support the notion that the physically active body should be considered more than a physical object, as it represents a conscious, feeling, thinking and reflective self. The findings signify much is to be gained by regularly partaking in deliberate physical activity during later life although this is not always as easy as it sounds. At a personal level, changes in functional capacity and dealing with the sometimes ailing body can serve as a deterrent. From a broader perspective, the stigma associated with being older also poses a significant physical, sociological and psychological challenge, particularly during the initial phases. In conclusion, the study discusses why change must occur at a personal and societal level before a greater proportion of the older population become more physically active.

text: ‘You’re never too old’: beliefs about physical activity and playing sport in later life It was evident from interviews with 15 men and women over 70 years of age that the experiences derived from being physically active and playing sport in later life are expansive, dynamic and completely imbued with multiple interpretations. Furthermore, their beliefs support the notion that the physically active body should be considered more than a physical object, as it represents a conscious, feeling, thinking and reflective self. The findings signify much is to be gained by regularly partaking in deliberate physical activity during later life although this is not always as easy as it sounds. At a personal level, changes in functional capacity and dealing with the sometimes ailing body can serve as a deterrent. From a broader perspective, the stigma associated with being older also poses a significant physical, sociological and psychological challenge, particularly during the initial phases. In conclusion, the study discusses why change must occur at a personal and societal level before a greater proportion of the older population become more physically active.

year: 2001

title: Poi Apakura

authors: Maxwell, Te Kahautu

abstract: Poi Apakura portrays the battles both pre European contact through to the land wars and the confiscation of 400,000 acres of Te Whakatōhea land s in 1865 with the killing of the missionary Rev Catl Volkner known as Te Wākana. Performed by Ōpōtiki Mai Tawhiti at the Te Matatini World Championship Kapa Haa Competition 2013.

text: Poi Apakura Poi Apakura portrays the battles both pre European contact through to the land wars and the confiscation of 400,000 acres of Te Whakatōhea land s in 1865 with the killing of the missionary Rev Catl Volkner known as Te Wākana. Performed by Ōpōtiki Mai Tawhiti at the Te Matatini World Championship Kapa Haa Competition 2013.

year: 2013