title: Syntheses and Structural Studies of Several Group 8 Metal Complexes Derived from 1,3-Butadiyne

authors: Bruce, Michael I.

subjects: Diynyl

abstract: As part of an extensive investigation into the chemistry of complexes containing metal-ligand centers linked by chains of C(sp) atoms, the preparation, characterization, and single-crystal X-ray diffraction molecular structure determinations of four complexes {MLn}-C≡CC≡C-{M’L’m} [MLn = Ru(dppe)Cp*, M’L’m = Fe(dppp)Cp* (1), Ru(dppe)Cp* (2), MLn = M’L’m = Os(PPh₃)₂Cp (3)], and {Cp*(dppe)Ru}C≡CC≡C{trans-RuCl(dppe) ₂} (4), in which the alternating C(sp)–C(sp) bonds have values between 1.375 and 1.40 Å (single) and between 1.20 and 1.259 Å (triple), respectively, are described. In addition, a structure determination of Ru₃(μ-H){μ3-C2C≡C[Ru(PPh₃)₂Cp]}(CO)₉ (5) shows that the C2 fragment attached to the HRu3 cluster shows the expected lengthening [to 1.311(7) Å] and bending at the two carbon atoms [to 152.6(6) and 157.6(5)°] (resulting from back-bonding from the Ru3 cluster into the C≡C π* orbitals) compared with the essentially linear Ru–CC– moiety [C≡C 1.222(6) Å, angles at C of 178.0(5), 172.3(6)°].

text: Syntheses and Structural Studies of Several Group 8 Metal Complexes Derived from 1,3-Butadiyne As part of an extensive investigation into the chemistry of complexes containing metal-ligand centers linked by chains of C(sp) atoms, the preparation, characterization, and single-crystal X-ray diffraction molecular structure determinations of four complexes {MLn}-C≡CC≡C-{M’L’m} [MLn = Ru(dppe)Cp*, M’L’m = Fe(dppp)Cp* (1), Ru(dppe)Cp* (2), MLn = M’L’m = Os(PPh₃)₂Cp (3)], and {Cp*(dppe)Ru}C≡CC≡C{trans-RuCl(dppe) ₂} (4), in which the alternating C(sp)–C(sp) bonds have values between 1.375 and 1.40 Å (single) and between 1.20 and 1.259 Å (triple), respectively, are described. In addition, a structure determination of Ru₃(μ-H){μ3-C2C≡C[Ru(PPh₃)₂Cp]}(CO)₉ (5) shows that the C2 fragment attached to the HRu3 cluster shows the expected lengthening [to 1.311(7) Å] and bending at the two carbon atoms [to 152.6(6) and 157.6(5)°] (resulting from back-bonding from the Ru3 cluster into the C≡C π* orbitals) compared with the essentially linear Ru–CC– moiety [C≡C 1.222(6) Å, angles at C of 178.0(5), 172.3(6)°].

year: 2013

title: Designing a teacher development programme to enhance the teaching of higher order thinking and conceptual understanding in primary school social studies

authors: Barr, Hugh

abstract: While higher order thinking has always been regarded as an essential component of social studies education, personal observations over a number of years and the findings of a survey which examined New Zealand social studies between 1984 and 1986 indicated that higher order thinking skills were generally taught ineffectively in social studies classrooms in New Zealand schools. This thesis describes a small scale action research project concerned with the development of an intervention process designed to enhance the teaching of higher order thinking skills by affecting changes in teacher understanding and teacher behaviour.

The project sought to determine the extent to which teachers provided learning activities which were likely to bring about higher order thinking; the degree to which higher order thinking skills were used in activities to achieve particular goals; and those aspects of teacher behaviour or understanding which limited opportunity for students to engage in higher order thinking in primary school social studies. Once data had been obtained, the project team, the researcher and six classroom teachers, developed an intervention programme designed to encourage teachers to adopt behaviours which would lead to improved higher order thinking in social studies classrooms.

Elements of both quantitative and qualitative methodology were used in the project, but, because it was primarily concerned with the effects of intervention on the functioning of people in a particular social situation, the project followed an action research model in its structure and in most methods. 

The intervention was based on a model which grouped the individual thinking skills in the national social studies curriculum into six groups of analogous skills. The groupings were made on the assumption that one reason teachers used higher order thinking skills ineffectively in social studies, was that they found it impractical to apply the long lists of specific skills provided by the national curriculum. The model was also designed to demonstrate the relationship between specific thinking skills and conceptual understanding because, although the national curriculum emphasised the importance of both of these in classroom social studies, the relationship between the two was not made clear either in that document, or in earlier national curricula.

The model was designed to provide teachers with a representation of the thinking processes in social studies. However, it also proved useful as an analytical tool. In the observations which were a major part of the project, the model was used to identify the thinking skills dominant and evident in classroom learning activities. In a series of detailed classroom observations the researcher recorded and examined teacher questions, time allocated to classroom activities, skills emphasised and evident in learning activities, and teacher understanding of the nature and structure of social studies. In the intervention which followed the observations, members of the research team modified the original model and developed further models which related the intent of the original to the structure of the national curriculum and to classroom practice. These models were applied, and a second series of observations conducted.

At the time that this project took place New Zealand teachers were teaching social studies from the first draft of a new national curriculum. This draft has since been superseded by a further draft Social Studies in the New Zealand Curriculum (Revised Draft) (New Zealand Ministry of Education 1996) and by the final version of the national curriculum, Social Studies in the New Zealand Curriculum (New Zealand Ministry of Education 1997). The teaching and learning activities in the case studies in this paper are based on the first draft of the national social studies curriculum.

This project was a case study in one school, an action research model that sought to diagnose a particular problem in one setting, plan remedial action to deal with the problem and monitor the results of that action. Because the research field was limited to one setting, and because the research sample was necessarily small, it is not possible to make generalisations that can be applied to contexts wider than the one in which the research took place. In qualitative research conclusions point to possible new policies rather than to scientific generalisations and principles. Nonetheless, the project’s results suggest that when teachers understand the nature, purpose and structure of social studies education, planning and teaching are more effective. Teacher understanding can be enhanced through the use of a model when that model is simple, when it has practical classroom application and when teachers are themselves involved in its design and construction.

text: Designing a teacher development programme to enhance the teaching of higher order thinking and conceptual understanding in primary school social studies While higher order thinking has always been regarded as an essential component of social studies education, personal observations over a number of years and the findings of a survey which examined New Zealand social studies between 1984 and 1986 indicated that higher order thinking skills were generally taught ineffectively in social studies classrooms in New Zealand schools. This thesis describes a small scale action research project concerned with the development of an intervention process designed to enhance the teaching of higher order thinking skills by affecting changes in teacher understanding and teacher behaviour.

The project sought to determine the extent to which teachers provided learning activities which were likely to bring about higher order thinking; the degree to which higher order thinking skills were used in activities to achieve particular goals; and those aspects of teacher behaviour or understanding which limited opportunity for students to engage in higher order thinking in primary school social studies. Once data had been obtained, the project team, the researcher and six classroom teachers, developed an intervention programme designed to encourage teachers to adopt behaviours which would lead to improved higher order thinking in social studies classrooms.

Elements of both quantitative and qualitative methodology were used in the project, but, because it was primarily concerned with the effects of intervention on the functioning of people in a particular social situation, the project followed an action research model in its structure and in most methods. 

The intervention was based on a model which grouped the individual thinking skills in the national social studies curriculum into six groups of analogous skills. The groupings were made on the assumption that one reason teachers used higher order thinking skills ineffectively in social studies, was that they found it impractical to apply the long lists of specific skills provided by the national curriculum. The model was also designed to demonstrate the relationship between specific thinking skills and conceptual understanding because, although the national curriculum emphasised the importance of both of these in classroom social studies, the relationship between the two was not made clear either in that document, or in earlier national curricula.

The model was designed to provide teachers with a representation of the thinking processes in social studies. However, it also proved useful as an analytical tool. In the observations which were a major part of the project, the model was used to identify the thinking skills dominant and evident in classroom learning activities. In a series of detailed classroom observations the researcher recorded and examined teacher questions, time allocated to classroom activities, skills emphasised and evident in learning activities, and teacher understanding of the nature and structure of social studies. In the intervention which followed the observations, members of the research team modified the original model and developed further models which related the intent of the original to the structure of the national curriculum and to classroom practice. These models were applied, and a second series of observations conducted.

At the time that this project took place New Zealand teachers were teaching social studies from the first draft of a new national curriculum. This draft has since been superseded by a further draft Social Studies in the New Zealand Curriculum (Revised Draft) (New Zealand Ministry of Education 1996) and by the final version of the national curriculum, Social Studies in the New Zealand Curriculum (New Zealand Ministry of Education 1997). The teaching and learning activities in the case studies in this paper are based on the first draft of the national social studies curriculum.

This project was a case study in one school, an action research model that sought to diagnose a particular problem in one setting, plan remedial action to deal with the problem and monitor the results of that action. Because the research field was limited to one setting, and because the research sample was necessarily small, it is not possible to make generalisations that can be applied to contexts wider than the one in which the research took place. In qualitative research conclusions point to possible new policies rather than to scientific generalisations and principles. Nonetheless, the project’s results suggest that when teachers understand the nature, purpose and structure of social studies education, planning and teaching are more effective. Teacher understanding can be enhanced through the use of a model when that model is simple, when it has practical classroom application and when teachers are themselves involved in its design and construction.

year: 1998

title: Māori and Dementia: Māori health professionals’ perceptions of dementia, support offered and suggested improvements

authors: Townsend, Marie

subjects: dementia

abstract: E iti noa ana, nā te aroha (It is the giving that counts and not the size of the gift) The purpose of this thesis was to investigate the perceptions of Māori health professionals about Māori elders and dementia. The study aimed to describe: Māori health care providers’ understandings of dementia; traditional versus contemporary understandings; how cultural beliefs affect experience; how Māori cope with dementia; key issues relevant to Māori people with dementia; and how services can be improved to meet the needs of aged Māori. The usefulness and possible cultural adaptation of the biomedical model has been explored within the context of a Māori worldview and the perceptions of participants. Semi-structured and in-depth interviews were conducted with eight mental health professionals and one caregiver. The information gathered at interviews was recorded within verbatim transcripts, which were written and returned to the participants for feedback. A qualitative data analysis was carried out on the approved transcripts. The main findings suggest that Māori health professionals recognise that many Māori perceive dementia both from a traditional cultural perspective, associated with spirituality as well as a holistic understanding of wellness. Key issues identified by participants were: that there is fear associated with mental health facilities; the exclusion of cultural values and understandings from service providers is detrimental to the wellbeing of Māori elders; Māori do not understand the symptoms typically associated with dementia as an illness; there is a need for information and education within an appropriate frame for whānau; disjointed and multiple service providers inhibits Māori from accessing facilities offered; and that there is a real need for further services. It was considered important that mental health services are culturally appropriate, show respect for Māori values; are coordinated and sensitive; encourage and continue the development of a Māori mental health workforce; and further develop kaupapa Māori services for Māori elders. The main implication of this research is that further investigation into Māori and dementia is required. Recommendations are made with a view towards better addressing some of the mental health needs of Māori elders.

text: Māori and Dementia: Māori health professionals’ perceptions of dementia, support offered and suggested improvements E iti noa ana, nā te aroha (It is the giving that counts and not the size of the gift) The purpose of this thesis was to investigate the perceptions of Māori health professionals about Māori elders and dementia. The study aimed to describe: Māori health care providers’ understandings of dementia; traditional versus contemporary understandings; how cultural beliefs affect experience; how Māori cope with dementia; key issues relevant to Māori people with dementia; and how services can be improved to meet the needs of aged Māori. The usefulness and possible cultural adaptation of the biomedical model has been explored within the context of a Māori worldview and the perceptions of participants. Semi-structured and in-depth interviews were conducted with eight mental health professionals and one caregiver. The information gathered at interviews was recorded within verbatim transcripts, which were written and returned to the participants for feedback. A qualitative data analysis was carried out on the approved transcripts. The main findings suggest that Māori health professionals recognise that many Māori perceive dementia both from a traditional cultural perspective, associated with spirituality as well as a holistic understanding of wellness. Key issues identified by participants were: that there is fear associated with mental health facilities; the exclusion of cultural values and understandings from service providers is detrimental to the wellbeing of Māori elders; Māori do not understand the symptoms typically associated with dementia as an illness; there is a need for information and education within an appropriate frame for whānau; disjointed and multiple service providers inhibits Māori from accessing facilities offered; and that there is a real need for further services. It was considered important that mental health services are culturally appropriate, show respect for Māori values; are coordinated and sensitive; encourage and continue the development of a Māori mental health workforce; and further develop kaupapa Māori services for Māori elders. The main implication of this research is that further investigation into Māori and dementia is required. Recommendations are made with a view towards better addressing some of the mental health needs of Māori elders.

year: 2011