title: Dithiolate and diselenolate complexes [Pt₂(μ-ECH₂CH CHCH₂E)(PPh₃)₄]²⁺(E = S, Se): Synthesis, characterisation and mass spectrometric formation of the dichalcogenide species [Pt₂(μ-E₂)(PPh₃)₄]²⁺

authors: Devoy, Sarah M.

subjects: Platinum complexes

abstract: The reactions of [Pt₂(μ-E)₂(PPh₃)₄] (E = S, Se) with cis-1,4-dichlorobut-2-ene (cis-ClCH2CH=CHCH₂Cl) gives the dichalcogenolate complexes [Pt₂(μ-ECH₂CH=CHCH₂E)(PPh₃)₄]²⁺; an X-ray structure determination on the thiolate complex was carried out. The complexes give the expected dications in ESI mass spectra recorded at very low cone voltages, but at moderate cone voltages undergo facile fragmentation via a retro-Diels-Alder reaction and loss of 1,3-butadiene, giving the dichalcogenide species [Pt₂(μ-E₂)(PPh₃)₄]²⁺. Analogous species containing bidentate phosphine or arsine ligands have been previously generated electrochemically, and studied theoretically.

text: Dithiolate and diselenolate complexes [Pt₂(μ-ECH₂CH CHCH₂E)(PPh₃)₄]²⁺(E = S, Se): Synthesis, characterisation and mass spectrometric formation of the dichalcogenide species [Pt₂(μ-E₂)(PPh₃)₄]²⁺ The reactions of [Pt₂(μ-E)₂(PPh₃)₄] (E = S, Se) with cis-1,4-dichlorobut-2-ene (cis-ClCH2CH=CHCH₂Cl) gives the dichalcogenolate complexes [Pt₂(μ-ECH₂CH=CHCH₂E)(PPh₃)₄]²⁺; an X-ray structure determination on the thiolate complex was carried out. The complexes give the expected dications in ESI mass spectra recorded at very low cone voltages, but at moderate cone voltages undergo facile fragmentation via a retro-Diels-Alder reaction and loss of 1,3-butadiene, giving the dichalcogenide species [Pt₂(μ-E₂)(PPh₃)₄]²⁺. Analogous species containing bidentate phosphine or arsine ligands have been previously generated electrochemically, and studied theoretically.

year: 2009

title: Control of pests in Lake catchments – the Department of Conservation’s perspective

authors: Fairweather, Alastair

abstract: A key part of the Department of Conservation’s (DOC) work is to ensure the diversity of New Zealand’s natural heritage is maintained and restored. However, is a huge task and DOC’s resources cannot stretch to do everything everywhere. DOC therefore has to make decisions about what work to do and not do, juggling limited resources while meeting both biodiversity and community needs.
To help make these decisions, DOC has developed the Natural Heritage Management System (NHMS) Programme which identifies the highest priority sites (both terrestrial and freshwater) that need to be protected and where work needs to be done. For NHMS to correctly identify the priority sites and what work it needs to be done at the sites, it relies on good information. For the freshwater sites, the data came out of the Freshwater Ecosystems of New Zealand (FENZ) dataset. This data set describes the environmental and biological patterns in NZ’s freshwater ecosystems (rivers, lakes and wetlands). Once priority sites have been identified, it is important to understand what pressures the sites face and what activities, including pest control, need to be undertaken to reduce these pressures.
In this presentation, the Rotorua lakes, with particular reference to Lake Okataina, will be placed in the context of this prioritisation process, the pressures they face and pest control activities DOC has identified as necessary to ensure the priority lakes are protected.

text: Control of pests in Lake catchments – the Department of Conservation’s perspective A key part of the Department of Conservation’s (DOC) work is to ensure the diversity of New Zealand’s natural heritage is maintained and restored. However, is a huge task and DOC’s resources cannot stretch to do everything everywhere. DOC therefore has to make decisions about what work to do and not do, juggling limited resources while meeting both biodiversity and community needs.
To help make these decisions, DOC has developed the Natural Heritage Management System (NHMS) Programme which identifies the highest priority sites (both terrestrial and freshwater) that need to be protected and where work needs to be done. For NHMS to correctly identify the priority sites and what work it needs to be done at the sites, it relies on good information. For the freshwater sites, the data came out of the Freshwater Ecosystems of New Zealand (FENZ) dataset. This data set describes the environmental and biological patterns in NZ’s freshwater ecosystems (rivers, lakes and wetlands). Once priority sites have been identified, it is important to understand what pressures the sites face and what activities, including pest control, need to be undertaken to reduce these pressures.
In this presentation, the Rotorua lakes, with particular reference to Lake Okataina, will be placed in the context of this prioritisation process, the pressures they face and pest control activities DOC has identified as necessary to ensure the priority lakes are protected.

year: 2015

title: Moehewa: Death, lifestyle and sexuality in the Maori world

authors: Nikora, Linda Waimarie

subjects: Maori

abstract: Customary death ritual and traditional practice have continued for the Maori (indigenous) people of Aotearoa/New Zealand, despite intensive missionary incursion and the colonial process. This paper critically considers what occurs when the deceased is different, in a most significant way. What happens when you die – and you are Maori and any one, or a combination, of the following: a queen, takatapui, butch, like that, gay, she-male, lesbian, transsexual, a dyke, intersex, tomboy, kamp, drag, homosexual, or just queer? Who remembers you and how? Same sex relationships today are still discouraged or denied, although traditional chant and Maori visual narratives record such liaisons and erotic experience as joyously normal. And yet some people choose to remain in the closet. With three case studies, we reflect on mourning rituals or tangi – Maori death rites, in a same sex relationship, or for a gay, lesbian or transsexual family member. We use the Maori term takatapui to refer to these partnerships.

text: Moehewa: Death, lifestyle and sexuality in the Maori world Customary death ritual and traditional practice have continued for the Maori (indigenous) people of Aotearoa/New Zealand, despite intensive missionary incursion and the colonial process. This paper critically considers what occurs when the deceased is different, in a most significant way. What happens when you die – and you are Maori and any one, or a combination, of the following: a queen, takatapui, butch, like that, gay, she-male, lesbian, transsexual, a dyke, intersex, tomboy, kamp, drag, homosexual, or just queer? Who remembers you and how? Same sex relationships today are still discouraged or denied, although traditional chant and Maori visual narratives record such liaisons and erotic experience as joyously normal. And yet some people choose to remain in the closet. With three case studies, we reflect on mourning rituals or tangi – Maori death rites, in a same sex relationship, or for a gay, lesbian or transsexual family member. We use the Maori term takatapui to refer to these partnerships.

year: 2013