Ferrierite from Tapu, Coromandel Peninsula, New Zealand, and a crystal chemical study of known occurrences

1986 ◽  
Vol 50 (355) ◽  
pp. 63-68 ◽  
Author(s):  
T. Sameshima

AbstractFerrierite has been found at Tapu, Coromandel Peninsula, New Zealand, as a mineral vein with calcite in altered hornblende andesite lava of the Miocene Beeson's Island Volcanics. The ferrierite is low in SiO2 (63.67%) and high in Al2O3 (13.75%), MgO (3.48%), and BaO(2.35%). The large a axis and cell volume (a 19.236(4), b 14.162(6), c 7.527(3) Å, V 2050 Å3) are consistent with the low SiO2, high Al2O3, high MgO chemistry. Optical orientation and optical sign (a = Z, b = X, c = Y, 2V(-)55°) of the mineral are different from those of the Lake Kamloops ferrierite reported by Graham (1918). Refractive indices α 1.487, γ 1.489, and density 2.136 were measured. Cleavage observed on (100) is perfect and on (001) is imperfect. Using data from eighteen occurrences so far reported including the Tapu mineral, the crystal chemistry of ferrierite has been studied.

2014 ◽  
Vol 53 (12) ◽  
pp. 6264-6269 ◽  
Author(s):  
Daniel Rettenwander ◽  
Charles A. Geiger ◽  
Martina Tribus ◽  
Peter Tropper ◽  
Georg Amthauer

2021 ◽  
Author(s):  
◽  
Alice Scahill

<p>Emotion is an integral aspect of organisational life and this thesis examines the emotional demands that academics experience in their workplace and the consequences this has for them. At a more specific level, the thesis examines the strategies that academics use to cope with these emotional demands, and how these strategies develop and change over the duration of their career. Using data collected from interviews with academics from business schools across the New Zealand tertiary education sector, findings are presented which demonstrate how academics develop coping strategies and how the organisation provides support. The implications from these findings could have significant effects for organisational practice. Firstly, these findings illustrate that academics experiences emotion in relation to personal, interpersonal, and systemic factors. Secondly, academics adopt a wide array of coping strategies, which have been personally developed by each individual over time. They are not given any organisational training or support for their development of these strategies. In addition, academics use coping strategies both in the workplace and at home in order to attempt to mitigate the negative impacts of the emotional demands of their roles. Finally, academics in their early career lack adequate coping strategies, and appear to have the lowest levels of organisational commitment.</p>


2021 ◽  
Author(s):  
Martin Lally

This paper considers the costs and benefits of New Zealand's Covid-19 nation-wide lockdown strategy relative to pursuit of a mitigation strategy in March 2020. Using data available up to 28 June 2021, the estimated additional deaths from a mitigation strategy are 1,750 to 4,600, implying a Cost per Quality Adjusted Life Year saved by locking down in March 2020 of at least 13 times the generally employed threshold figure of $62,000 for health interventions in New Zealand; the lockdowns do not then seem to have been justified by reference to the standard benchmark. Using only data available to the New Zealand government in March 2020, the ratio is similar and therefore the same conclusion holds that the nation-wide lockdown strategy was not warranted. Looking forwards from 28 June 2021, if a new outbreak occurs that cannot be suppressed without a nation-wide lockdown, the death toll from adopting a mitigation strategy at this point would be even less than had it done so in March 2020, due to the vaccination campaign and because the period over which the virus would then inflict casualties would now be much less than the period from March 2020; this would favour a mitigation policy even more strongly than in March 2020. This approach of assessing the savings in quality adjusted life years and comparing them to a standard benchmark figure ensures that all quality adjusted life years saved by various health interventions are treated equally, which accords with the ethical principle of equity across people.


Author(s):  
D. J. Dowrick ◽  
S. Sritharan

The attenuation of peak ground accelerations was studied for eight New Zealand earthquakes which occurred in the period 1987 to 1991. These events were of medium size with moment magnitudes in the range Mw = 5.8 - 6.7, with depth to centroids of the fault rupture ranging from 4 to 60 km. Attenuation of peak ground accelerations was examined for each event, based on the slope distance from the rupture surface to each strong motion data site. The mean regression attenuation curve for each event was compared with those derived by others using data sets from other parts of the world, allowance being made for source mechanism and depth. Excepting the 1988 Te Anau event, the other seven New Zealand events as a set closely match a Japanese model, but give significantly stronger accelerations than those predicted by the models from western USA and Europe.


Minerals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 702
Author(s):  
Ekaterina V. Kaneva ◽  
Roman Yu. Shendrik ◽  
Tatiana A. Radomskaya ◽  
Ludmila F. Suvorova

Fedorite is a rare phyllosilicate, having a crystal structure characterized by SiO4-tetrahedral double layers located between continuous layers formed by edge-sharing (Ca,Na)-octahedra, and containing interlayer K, Na atoms and H2O molecules. A mineralogical-petrographic and detailed crystal-chemical study of fedorite specimens from three districts of the Murun alkaline complex was performed. The sequence of the crystallization of minerals in association with fedorite was established. The studied fedorite samples differ in the content of interlayer potassium and water molecules. A comparative analysis based on polyhedral characteristics and deformation parameters was carried out. For the first time, EPR, optical absorption and emission spectra were obtained for fedorite. The raspberry-red coloration of the mineral specimens could be attributed to the presence of Mn4+ ions.


2020 ◽  
Vol 61 (3) ◽  
pp. 439-448
Author(s):  
D. V. Kochelakov ◽  
E. S. Vikulova ◽  
N. V. Kuratieva

Author(s):  
Kim Dirks ◽  
Jennifer Salmond ◽  
Nicholas Talbot

Walking School Buses (WSBs), organized groups for children to walk to school under the supervision of adults, help reduce traffic congestion and contribute towards exercise. Routes are based largely on need, traffic safety and travel time, with exposure to air pollution not generally considered. This paper explores whether reductions in exposure can be achieved based on the side of the road travelled using data collected in Auckland, New Zealand. Exposure to air pollution was measured for a 25-min commute consisting of a 10-min segment along a quiet cul-de-sac and a 15-min segment along a main arterial road with traffic congestion heavier in one direction. Two participants were each equipped with a portable P-Trak ultrafine particle monitor and a portable Langan carbon monoxide monitor, and walked the route on opposite sides of the road simultaneously, for both morning and afternoon, logging 10-s data. The results suggest that pedestrians travelling on the footpath next to the less congested side of the road in the morning avoid many short-term peaks in concentration and experience significantly lower mean exposures than those travelling on the footpath next to the more congested side. Significant reductions in air pollution exposure could be made for children by taking into account the side of the road in WSB route design.


2019 ◽  
pp. 1-30
Author(s):  
Catherine Bolzendahl ◽  
Hilde Coffé

AbstractMost democracies fail to provide equal representation and tend to have an overrepresentation of men from the upper class and the majority racial or ethnic group. We investigate public support for increasing the number of women and indigenous Māori members of parliament (MPs) in the New Zealand Parliament, both in general and through specific mechanisms such as quotas and reserved seats. We offer three explanations: descriptive (group identity), substantive (issue alignment), and symbolic (socioeconomic and political equity concerns). Using data from the 2014 New Zealand Election Study, we found that shared identity (descriptive) matters for all measures of increased representation, but especially for Māori respondent support of increased Māori MPs. Support for increasing the proportion of Māori MPs is also strongly driven by substantive concerns, as measured by support for keeping the Treaty of Waitangi in law. Support for increasing the number of women MPs is driven most strongly by symbolic concerns (measured as increased government social spending and efforts to reduce income differences). Overall, respondents favor retaining the current number of reserved seats for Māori MP representation, whereas informal efforts (rather than quotas) are strongly preferred for increasing the number of women MPs.


2020 ◽  
Vol 17 (162) ◽  
pp. 20190526
Author(s):  
Tessa Barrett-Walker ◽  
Michael J. Plank ◽  
Rachael Ka'ai-Mahuta ◽  
Daniel Hikuroa ◽  
Alex James

More than a third of the world's languages are currently classified as endangered and more than half are expected to go extinct by 2100. Strategies aimed at revitalizing endangered languages have been implemented in numerous countries, with varying degrees of success. Here, we develop a new model regarding language transmission by dividing the population into defined proficiency categories and dynamically quantifying transition rates between categories. The model can predict changes in proficiency levels over time and, ultimately, whether a given endangered language is on a long-term trajectory towards extinction or recovery. We calibrate the model using data from Wales and show that the model predicts that the Welsh language will thrive in the long term. We then apply the model to te reo Māori, the indigenous language of New Zealand, as a case study. Initial conditions for this model are estimated using New Zealand census data. We modify the model to describe a country, such as New Zealand, where the endangered language is associated with a particular subpopulation representing the indigenous people. We conclude that, with current learning rates, te reo Māori is on a pathway towards extinction, but identify strategies that could help restore it to an upward trajectory.


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