title: The relativistically invariant expansion of a scalar function on imaginary Lobachevski space

authors: Kalnins, Ernie G.

subjects: Mathematics

abstract: Using the previous analysis of Gel'fand and Graev a new relativistically invariant expansion of a scalar function on three-dimensional imaginary Lobachevski space L3(I) is given. The coordinate system used corresponds to the horospherical reduction SO(3,1) E2 SO(2) and covers all of L3(I).

text: The relativistically invariant expansion of a scalar function on imaginary Lobachevski space Using the previous analysis of Gel'fand and Graev a new relativistically invariant expansion of a scalar function on three-dimensional imaginary Lobachevski space L3(I) is given. The coordinate system used corresponds to the horospherical reduction SO(3,1) E2 SO(2) and covers all of L3(I).

year: 1973-10

title: Hexadecane mineralization activity in hydrocarbon-contaminated soils of Ross Sea region Antarctica may require nutrients and inoculation

authors: Aislabie, Jackie M.

subjects: enhancing alkane mineralization

abstract: Hydrocarbon spills on Antarctic soils occur mainly near settlements where fuel is stored and aircraft and vehicles are refuelled. To investigate those factors that may preclude hexadecane mineralization activity in long-term hydrocarbon-contaminated soils from the Ross Sea Region, samples were collected from Scott Base, the site of former bases (Cape Evans, Marble Point, Vanda Station), and two oil spill sites in the Wright Valley (Bull Pass and Loop Moraine). The soils had low levels of nitrogen (<0.1% total N) and a high C/N ratio (>24) reflecting hydrocarbon contamination. Following soil water adjustment to 10% (v/w), the influence of nutrient addition (250 mg/kg N added as monoammonium phosphate) and inoculation (spiking with Antarctic soil containing high numbers of hydrocarbon degraders) as required on hexadecane mineralization activity was determined. Hexadecane mineralization activity occurred in contaminated soils from Marble Point, Cape Evans and one sample from Vanda Station without nutrient addition. In contrast soils from Scott Base, Cape Evans, another sample from Vanda Station and Loop Moraine required nutrients, whereas Bull Pass soil required inoculation and nutrients before hexadecane mineralization proceeded. Hydrocarbon degrader numbers were highest in coastal soils from Scott Base and Marble Point (10⁷ per gram) and less prevalent in inland soils from Wright Valley (<10⁵ per gram). The bacterial community structure of the soils differed between sites, but soils from the same sites tended to cluster together more closely, except for those from Vanda Station. Addition of nutrients did not cause large shifts in the soil bacterial communities. Results from this study indicate that hydrocarbon degradation may occur at some sites in summer when water is available. Long-term hydrocarbon-contaminated Antarctic soils may provide a valuable resource of hydrocarbon-degrading bacteria that can serve as inocula for more recent oil spills on land.

text: Hexadecane mineralization activity in hydrocarbon-contaminated soils of Ross Sea region Antarctica may require nutrients and inoculation Hydrocarbon spills on Antarctic soils occur mainly near settlements where fuel is stored and aircraft and vehicles are refuelled. To investigate those factors that may preclude hexadecane mineralization activity in long-term hydrocarbon-contaminated soils from the Ross Sea Region, samples were collected from Scott Base, the site of former bases (Cape Evans, Marble Point, Vanda Station), and two oil spill sites in the Wright Valley (Bull Pass and Loop Moraine). The soils had low levels of nitrogen (<0.1% total N) and a high C/N ratio (>24) reflecting hydrocarbon contamination. Following soil water adjustment to 10% (v/w), the influence of nutrient addition (250 mg/kg N added as monoammonium phosphate) and inoculation (spiking with Antarctic soil containing high numbers of hydrocarbon degraders) as required on hexadecane mineralization activity was determined. Hexadecane mineralization activity occurred in contaminated soils from Marble Point, Cape Evans and one sample from Vanda Station without nutrient addition. In contrast soils from Scott Base, Cape Evans, another sample from Vanda Station and Loop Moraine required nutrients, whereas Bull Pass soil required inoculation and nutrients before hexadecane mineralization proceeded. Hydrocarbon degrader numbers were highest in coastal soils from Scott Base and Marble Point (10⁷ per gram) and less prevalent in inland soils from Wright Valley (<10⁵ per gram). The bacterial community structure of the soils differed between sites, but soils from the same sites tended to cluster together more closely, except for those from Vanda Station. Addition of nutrients did not cause large shifts in the soil bacterial communities. Results from this study indicate that hydrocarbon degradation may occur at some sites in summer when water is available. Long-term hydrocarbon-contaminated Antarctic soils may provide a valuable resource of hydrocarbon-degrading bacteria that can serve as inocula for more recent oil spills on land.

year: 2012-02

title: Donna Awatere on Whiteness in New Zealand: Theoretical Contributions and Contemporary Relevance

authors: Norris, Adele N.

abstract: In June 2022, Prime Minister Jacinda Ardern designated the US-based neofascist groups The Base and the Proud Boys as terrorist organisations. This designation marks one of the few times white supremacy entered the national political discourse in New Zealand. Discourses of whiteness are mostly theorised in the North American context. However, Donna Awatere’s 1984 examination of White Cultural Imperialism (WCI) in her book Māori Sovereignty advanced an analysis of whiteness in New Zealand that has received limited scholarly attention and is essentially unexplored. This paper reintroduces Awatere’s conceptualisation of WCI. It offers core tenets of WCI and theoretical insights into contemporary discussions of white supremacy that move beyond the focus of individuals and groups to a broader national framework of New Zealand. Two interrelated features of WCI, as defined by Awatere, are the minimisation and normalisation of whiteness and white racial hostility –  inherent features that maintain, protect, and reproduce the white institutionalised body as the primary beneficiary of Western European domination that will always thwart Indigenous sovereignty and equality. This paper concludes that Awatere’s articulation of WCI links whiteness in the New Zealand context to the broader network of global white supremacy that offers insight into contemporary criminal justice scholarship.

text: Donna Awatere on Whiteness in New Zealand: Theoretical Contributions and Contemporary Relevance In June 2022, Prime Minister Jacinda Ardern designated the US-based neofascist groups The Base and the Proud Boys as terrorist organisations. This designation marks one of the few times white supremacy entered the national political discourse in New Zealand. Discourses of whiteness are mostly theorised in the North American context. However, Donna Awatere’s 1984 examination of White Cultural Imperialism (WCI) in her book Māori Sovereignty advanced an analysis of whiteness in New Zealand that has received limited scholarly attention and is essentially unexplored. This paper reintroduces Awatere’s conceptualisation of WCI. It offers core tenets of WCI and theoretical insights into contemporary discussions of white supremacy that move beyond the focus of individuals and groups to a broader national framework of New Zealand. Two interrelated features of WCI, as defined by Awatere, are the minimisation and normalisation of whiteness and white racial hostility –  inherent features that maintain, protect, and reproduce the white institutionalised body as the primary beneficiary of Western European domination that will always thwart Indigenous sovereignty and equality. This paper concludes that Awatere’s articulation of WCI links whiteness in the New Zealand context to the broader network of global white supremacy that offers insight into contemporary criminal justice scholarship.

year: 2023-07-27