title: Effect of iron on grain refinement of high-purity Mg–Al alloys

authors: Cao, Peng

subjects: Magnesium alloys

abstract: The effect of iron on the grain refinement of high-purity Mg–3%Al and Mg–9%Al alloys has been investigated using anhydrous FeCl3 as an iron additive at 750 °C in carbon-free aluminium titanite crucibles. It was shown that grain refinement was readily achievable for both alloys. Fe- and Al-rich intermetallic particles were observed in many magnesium grains.

text: Effect of iron on grain refinement of high-purity Mg–Al alloys The effect of iron on the grain refinement of high-purity Mg–3%Al and Mg–9%Al alloys has been investigated using anhydrous FeCl3 as an iron additive at 750 °C in carbon-free aluminium titanite crucibles. It was shown that grain refinement was readily achievable for both alloys. Fe- and Al-rich intermetallic particles were observed in many magnesium grains.

year: 2004-07

title: Unusual microorganisms observed in New Zealand hot springs

authors: Patel, B.K.C.

subjects: biology

abstract: A technique is described for studying hot spring microbial morphotypes by using electron microscope grids incubatedin situ. Such studies revealed the presence of filaments bearing swollen saclike structures in a number of New Zealand hot springs. There was considerable variation in the size, structure, and morphology of the filaments and the saclike structures.

text: Unusual microorganisms observed in New Zealand hot springs A technique is described for studying hot spring microbial morphotypes by using electron microscope grids incubatedin situ. Such studies revealed the presence of filaments bearing swollen saclike structures in a number of New Zealand hot springs. There was considerable variation in the size, structure, and morphology of the filaments and the saclike structures.

year: 1986

title: Just take a second to breathe: Empowering youth through mindfulness at Atawhai 2019

authors: McAllister, Suzanne Maree

subjects: Mindfulness

abstract: This research was an evaluation of The Kindness Institute’s 2019 Atawhai programme. It examined the effects that exposure to mindfulness-based skills, Māori cultural practices, mentoring, and the creative arts had on a cohort of marginalised youth. Specifically, the research aimed to determine (1) if learning mindfulness-based skills helped the youth to positively deal with challenges, (2) what effect learning mindfulness-based skills has on their positive and negative emotions and (3) were youth empowered to share the skills they learned within their homes, families and communities to enable a wider benefit from the mindfulness-based skills. Participants included 12 youth who attended the Atawhai programme during 2019. They all completed shortened versions of the Five Facet Mindfulness Questionnaire (FFMQ), Adolescent Self-Regulatory Inventory (ASRI), The Oxford Happiness Questionnaire (OHQ), Revised Children’s Anxiety and Depression Scale (RCADS) and Self-Compassion Scale (SCS) at seven stages over a nine-month period from March 2019 to December 2019. Self-report debrief questionnaires and researcher observations were recorded during the October 2019 residential intensive of 5 days. Inferential statistics (repeated measures ANOVA and post-hoc paired t-tests) indicated a statistically significant increase in positive emotions (p<0.01) with a large effect 1.07 over the duration of the evaluation period from March 2019 to December 2019; the October 2019 intensive, p<0.01, d=1.37; and the April 2019 intensive, p<0.01, d=1.89. Statistically significant decreases in anxiety (p<0.01) with a large effect d=1.99 were indicated over the duration of the evaluation period from March 2019 to December 2019; the October 2019 intensive, p=0.07, d=0.57; and the April 2019 intensive, p≤0.01, d=1.19. Self-report measures indicated the youth; found the mindfulness-based skills beneficial, preferred a particular skill over others, and found their mentors supportive in helping them incorporate the skills into their daily lives. Youth reported they had continued their mindfulness-based practice outside Atawhai and were regularly sharing the skills within their homes, families and communities including their schools. These findings suggest the Atawhai programme has a profound and significant positive effect on the wellbeing of the young people it serves.

text: Just take a second to breathe: Empowering youth through mindfulness at Atawhai 2019 This research was an evaluation of The Kindness Institute’s 2019 Atawhai programme. It examined the effects that exposure to mindfulness-based skills, Māori cultural practices, mentoring, and the creative arts had on a cohort of marginalised youth. Specifically, the research aimed to determine (1) if learning mindfulness-based skills helped the youth to positively deal with challenges, (2) what effect learning mindfulness-based skills has on their positive and negative emotions and (3) were youth empowered to share the skills they learned within their homes, families and communities to enable a wider benefit from the mindfulness-based skills. Participants included 12 youth who attended the Atawhai programme during 2019. They all completed shortened versions of the Five Facet Mindfulness Questionnaire (FFMQ), Adolescent Self-Regulatory Inventory (ASRI), The Oxford Happiness Questionnaire (OHQ), Revised Children’s Anxiety and Depression Scale (RCADS) and Self-Compassion Scale (SCS) at seven stages over a nine-month period from March 2019 to December 2019. Self-report debrief questionnaires and researcher observations were recorded during the October 2019 residential intensive of 5 days. Inferential statistics (repeated measures ANOVA and post-hoc paired t-tests) indicated a statistically significant increase in positive emotions (p<0.01) with a large effect 1.07 over the duration of the evaluation period from March 2019 to December 2019; the October 2019 intensive, p<0.01, d=1.37; and the April 2019 intensive, p<0.01, d=1.89. Statistically significant decreases in anxiety (p<0.01) with a large effect d=1.99 were indicated over the duration of the evaluation period from March 2019 to December 2019; the October 2019 intensive, p=0.07, d=0.57; and the April 2019 intensive, p≤0.01, d=1.19. Self-report measures indicated the youth; found the mindfulness-based skills beneficial, preferred a particular skill over others, and found their mentors supportive in helping them incorporate the skills into their daily lives. Youth reported they had continued their mindfulness-based practice outside Atawhai and were regularly sharing the skills within their homes, families and communities including their schools. These findings suggest the Atawhai programme has a profound and significant positive effect on the wellbeing of the young people it serves.

year: 2020