title: Acetylene reduction associated with zostera novazelandica Setch. and Spartina alterniflora Loisel., in Whangateau harbour, North Island, New Zealand

authors: Hicks, Brendan J.

subjects: biology

abstract: Nitrogen fixation (acetylene reduction) was investigated in Zostera novazelandica Setch. and Spartina alterniflora Loisel., in the North Island of New Zealand. Moderate rates of acetylene reduction were found in sediments in which plants were growing (means ± 95% confidence limit: 15.2 ± 2.8 |jmol C2H4 nrr2 h~l for Zostera and 24.7 ± 4.6 |amol C2H4 m~2 h"1 for Spartina). Activity was closely correlated with the dry weight of root; (r2 = 0.65, N = 15 for Zostera, and r2 = 0.85, A' =10 for Spartina). Sediment close to the plant beds, but without plants, exhibited only low rates of acetylene reduction (2.9 ± 2.2 and 4.5 ± l.OjLtmol C2H4 m~2 h"1, respectively). Sediments associated with Z. novazelandica and S. alterniflora in New Zealand exhibit moderate rates of nitrogenase activity compared to rates found in other countries. N fixation may contribute significantly to the nutrition of these plants in New Zealand estuaries.

text: Acetylene reduction associated with zostera novazelandica Setch. and Spartina alterniflora Loisel., in Whangateau harbour, North Island, New Zealand Nitrogen fixation (acetylene reduction) was investigated in Zostera novazelandica Setch. and Spartina alterniflora Loisel., in the North Island of New Zealand. Moderate rates of acetylene reduction were found in sediments in which plants were growing (means ± 95% confidence limit: 15.2 ± 2.8 |jmol C2H4 nrr2 h~l for Zostera and 24.7 ± 4.6 |amol C2H4 m~2 h"1 for Spartina). Activity was closely correlated with the dry weight of root; (r2 = 0.65, N = 15 for Zostera, and r2 = 0.85, A' =10 for Spartina). Sediment close to the plant beds, but without plants, exhibited only low rates of acetylene reduction (2.9 ± 2.2 and 4.5 ± l.OjLtmol C2H4 m~2 h"1, respectively). Sediments associated with Z. novazelandica and S. alterniflora in New Zealand exhibit moderate rates of nitrogenase activity compared to rates found in other countries. N fixation may contribute significantly to the nutrition of these plants in New Zealand estuaries.

year: 1990

title: Ruthenium and osmium carbonyl clusters incorporating stannylene and stannyl ligands

authors: Kabir, Shariff E.

abstract: The reaction of [Ru₃ (CO)₁₂] with Ph₃SnSPh in refluxing benzene furnished the bimetallic Ru-Sn compound [Ru₃(CO)₈(μ-SPh)₂(μ3-SnPh₂)(SnPh₃)₂] 1 which consists of a SnPh₂ stannylene bonded to three Ru atoms to give a planar tetra-metal core, with two peripheral SnPh₃ ligands. The stannylene ligand forms a very short bond to one Ru atom [Sn-Ru 2.538(1) Å] and very long bonds to the other two [Sn-Ru 3.074(1) Å]. The germanium compound [Ru₃(CO)₈(μ-SPh)₂(μ₃-GePh₂)(GePh₃)₂] 2 was obtained from the reaction of [Ru₃ (CO)₁₂] with Ph₃GeSPh and has a similar structure to that of 1 as evidenced by spectroscopic data. Treatment of [Os₃(CO)₁₀(MeCN)₂] with Ph₃SnSPh in refluxing benzene yielded the bimetallic Os-Sn compound [Os₃(CO)₉(μ-SPh)(μ₃-SnPh₂)(MeCN)(ƞ¹-C₆H₅)] 3. Cluster 3 has a superficially similar planar metal core, but with a different bonding mode with respect to that of 1. The Ph₂Sn group is bonded most closely to Os(2) and Os(3) [2.7862(3) and 2.7476(3) Å respectively] with a significantly longer bond to Os(1), 2.9981(3) Å indicating a weak back-donation to the Sn. The reaction of the bridging dppm compound [Ru₃(CO)₁₀(μ-dppm)] with Ph₃SnSPh afforded [Ru₃(CO)₆(μ-dppm)(μ₃-S)(μ₃-SPh)(SnPh₃)] 5. Compound 5 contains an open triangle of Ru atoms simultaneously capped by a sulfido and a PhS ligand on opposite sides of the cluster with a dppm ligand bridging one of the Ru-Ru edges and a Ph₃Sn group occupying an axial position on the Ru atom not bridged by the dppm ligand.

text: Ruthenium and osmium carbonyl clusters incorporating stannylene and stannyl ligands The reaction of [Ru₃ (CO)₁₂] with Ph₃SnSPh in refluxing benzene furnished the bimetallic Ru-Sn compound [Ru₃(CO)₈(μ-SPh)₂(μ3-SnPh₂)(SnPh₃)₂] 1 which consists of a SnPh₂ stannylene bonded to three Ru atoms to give a planar tetra-metal core, with two peripheral SnPh₃ ligands. The stannylene ligand forms a very short bond to one Ru atom [Sn-Ru 2.538(1) Å] and very long bonds to the other two [Sn-Ru 3.074(1) Å]. The germanium compound [Ru₃(CO)₈(μ-SPh)₂(μ₃-GePh₂)(GePh₃)₂] 2 was obtained from the reaction of [Ru₃ (CO)₁₂] with Ph₃GeSPh and has a similar structure to that of 1 as evidenced by spectroscopic data. Treatment of [Os₃(CO)₁₀(MeCN)₂] with Ph₃SnSPh in refluxing benzene yielded the bimetallic Os-Sn compound [Os₃(CO)₉(μ-SPh)(μ₃-SnPh₂)(MeCN)(ƞ¹-C₆H₅)] 3. Cluster 3 has a superficially similar planar metal core, but with a different bonding mode with respect to that of 1. The Ph₂Sn group is bonded most closely to Os(2) and Os(3) [2.7862(3) and 2.7476(3) Å respectively] with a significantly longer bond to Os(1), 2.9981(3) Å indicating a weak back-donation to the Sn. The reaction of the bridging dppm compound [Ru₃(CO)₁₀(μ-dppm)] with Ph₃SnSPh afforded [Ru₃(CO)₆(μ-dppm)(μ₃-S)(μ₃-SPh)(SnPh₃)] 5. Compound 5 contains an open triangle of Ru atoms simultaneously capped by a sulfido and a PhS ligand on opposite sides of the cluster with a dppm ligand bridging one of the Ru-Ru edges and a Ph₃Sn group occupying an axial position on the Ru atom not bridged by the dppm ligand.

year: 2008

title: Decolonising Midwifery Education in Aotearoa: A Case Study Approach

authors: Cleaver,  Deanne Lesley

subjects: Decolonisation

abstract: The bicultural nature of Aotearoa (New Zealand) creates a strong foundation for the unique environment that supports the weaving of indigenous knowledge throughout midwifery education, and in turn creating a platform for decolonisation. Te Tiriti o Waitangi/ The Treaty of Waitangi serves to inform the direction that midwifery education and midwifery practice must take by underpinning these frameworks.
The revised midwifery curriculum and reaccreditation that supported the immersion of Indigenous knowledge throughout the midwifery degree at Wintec is currently in its fifth year. It was identified that there needed to be a more explicit focus of cultural safety and responsiveness, therefore in support of this Mātauranga Māori (Māori knowledge) was carefully embedded and linked to learning outcomes. This is in direct support of Te Tiriti o Waitangi and a move towards a Te Tiriti honouring programme. Topics that relate to tikanga Māori (customs), Te Ao Māori (Māori worldview) and Te Reo Māori (language) are respectfully taught, providing opportunities for understanding and growing competencies for midwifery tauira.  
Understanding colonisation in its global context alongside its role in the history of Aotearoa supported by Te Tiriti o Waitangi knowledge, is vital in the process of decolonisation. Tauira are encouraged to explore and reflect on these factors throughout their degree, supporting their growing cultural safety and awareness of relationships.  An anti-racism workshop in the final year of the degree adds another layer to the work of decolonisation and equips tauira with tools to be active in their allyship.
This personal and curricula journey empowers tauira to become culturally safe and responsive midwives, positively impacting the health of whānau Māori.
Through a case study approach the effectiveness of the interweaving of indigenous knowledge, Te Tiriti o Waitangi and Anti-Racism praxis will be explored, with the purpose of unpacking the learnings as a tool for social transformation within the process of decolonisation.
These changes promote the professional development of educators and the empowerment of tauira to uphold Indigenous rights, while providing care in partnership that is respectful. Decolonising Midwifery Education in Aotearoa: A Case Study approach’ will be explored and unpacked.

text: Decolonising Midwifery Education in Aotearoa: A Case Study Approach The bicultural nature of Aotearoa (New Zealand) creates a strong foundation for the unique environment that supports the weaving of indigenous knowledge throughout midwifery education, and in turn creating a platform for decolonisation. Te Tiriti o Waitangi/ The Treaty of Waitangi serves to inform the direction that midwifery education and midwifery practice must take by underpinning these frameworks.
The revised midwifery curriculum and reaccreditation that supported the immersion of Indigenous knowledge throughout the midwifery degree at Wintec is currently in its fifth year. It was identified that there needed to be a more explicit focus of cultural safety and responsiveness, therefore in support of this Mātauranga Māori (Māori knowledge) was carefully embedded and linked to learning outcomes. This is in direct support of Te Tiriti o Waitangi and a move towards a Te Tiriti honouring programme. Topics that relate to tikanga Māori (customs), Te Ao Māori (Māori worldview) and Te Reo Māori (language) are respectfully taught, providing opportunities for understanding and growing competencies for midwifery tauira.  
Understanding colonisation in its global context alongside its role in the history of Aotearoa supported by Te Tiriti o Waitangi knowledge, is vital in the process of decolonisation. Tauira are encouraged to explore and reflect on these factors throughout their degree, supporting their growing cultural safety and awareness of relationships.  An anti-racism workshop in the final year of the degree adds another layer to the work of decolonisation and equips tauira with tools to be active in their allyship.
This personal and curricula journey empowers tauira to become culturally safe and responsive midwives, positively impacting the health of whānau Māori.
Through a case study approach the effectiveness of the interweaving of indigenous knowledge, Te Tiriti o Waitangi and Anti-Racism praxis will be explored, with the purpose of unpacking the learnings as a tool for social transformation within the process of decolonisation.
These changes promote the professional development of educators and the empowerment of tauira to uphold Indigenous rights, while providing care in partnership that is respectful. Decolonising Midwifery Education in Aotearoa: A Case Study approach’ will be explored and unpacked.

year: 2023