title: A dialectic analysis of the whistleblowing phenomenon

authors: Bather, Andrea

subjects: whistleblowing

abstract: Although whistleblowers are often portrayed as courageous individuals deserving of respect, the act of whistleblowing can be viewed as a disloyal act which may bring much harm to the whistleblower's colleagues. We argue that although some whistleblowers have provided a great service to society, the world would be best served if the need for external whistleblowing were obviated by appropriate management practices.

text: A dialectic analysis of the whistleblowing phenomenon Although whistleblowers are often portrayed as courageous individuals deserving of respect, the act of whistleblowing can be viewed as a disloyal act which may bring much harm to the whistleblower's colleagues. We argue that although some whistleblowers have provided a great service to society, the world would be best served if the need for external whistleblowing were obviated by appropriate management practices.

year: 2006

title: Studying carbonisation with raman spectroscopy

authors: McDonald-Wharry, John

abstract: Raman spectroscopy can provide fast and non-destructive analysis of carbonaceous materials. As it is able to detect nanometre-sized structural features, Raman spectroscopy is widely used in the study of carbon nanotubes, fullerenes, graphenes, and many other carbon-rich materials. Raman analysis has previously shown potential for estimating the heat treatment temperatures (HTT) employed in the preparation of Japanese cedar charcoals which suggested future usefulness in quality control . In the current work, Raman spectroscopy was used to investigate the nanostructural development which had occurred within various chars prepared and carbonised at a range of heat treatment temperatures between ≈ 340°C and 1000°C. Chars were produced from sucrose sugar as standard precursor of high purity and two sources of biomass common in New Zealand (Radiata pine wood and Harakeke leaf fibres). In chars produced at lower HTTs, signals could be detected which were interpreted as representing hydrogen-rich amorphous carbon structures. In contrast, the Raman spectra of well-carbonised chars produced at higher HTTs featured signals consistent with graphene-like structures with coherent domains limited in size to below a few nanometres across. Measurement of such signals provides the ability to evaluate the extent of nanostructural development, identify char samples which are ‘undercooked’ when compared to other char samples, and estimate effective HTTs used in the production of a given char sample. More detailed Raman analysis of Radiata-derived chars was carried out, including analysis of chars produced from carbonising pyrolysis tars. Results of Raman analysis were correlated to H/C atom ratios obtained through elemental analysis for these chars produced from Radiata pine.

text: Studying carbonisation with raman spectroscopy Raman spectroscopy can provide fast and non-destructive analysis of carbonaceous materials. As it is able to detect nanometre-sized structural features, Raman spectroscopy is widely used in the study of carbon nanotubes, fullerenes, graphenes, and many other carbon-rich materials. Raman analysis has previously shown potential for estimating the heat treatment temperatures (HTT) employed in the preparation of Japanese cedar charcoals which suggested future usefulness in quality control . In the current work, Raman spectroscopy was used to investigate the nanostructural development which had occurred within various chars prepared and carbonised at a range of heat treatment temperatures between ≈ 340°C and 1000°C. Chars were produced from sucrose sugar as standard precursor of high purity and two sources of biomass common in New Zealand (Radiata pine wood and Harakeke leaf fibres). In chars produced at lower HTTs, signals could be detected which were interpreted as representing hydrogen-rich amorphous carbon structures. In contrast, the Raman spectra of well-carbonised chars produced at higher HTTs featured signals consistent with graphene-like structures with coherent domains limited in size to below a few nanometres across. Measurement of such signals provides the ability to evaluate the extent of nanostructural development, identify char samples which are ‘undercooked’ when compared to other char samples, and estimate effective HTTs used in the production of a given char sample. More detailed Raman analysis of Radiata-derived chars was carried out, including analysis of chars produced from carbonising pyrolysis tars. Results of Raman analysis were correlated to H/C atom ratios obtained through elemental analysis for these chars produced from Radiata pine.

year: 2013

title: Early intervention services: Effectively supporting Maori children and their families

authors: Berryman, Mere

subjects: Early Childhood

abstract: This paper examines Early Intervention (EI) service provision from within one Ministry of Education region in New Zealand. It does this in order to better understand what works well and what needs to change if children from Maori families, of Early Childhood age, are to be provided with the most effective EI services. By engaging with Maori families in group-focused interviews-asconversation, and then with their service providers, about their experiences of working together, researchers learned about what could provide effective services for other Maori families in similar situations.

text: Early intervention services: Effectively supporting Maori children and their families This paper examines Early Intervention (EI) service provision from within one Ministry of Education region in New Zealand. It does this in order to better understand what works well and what needs to change if children from Maori families, of Early Childhood age, are to be provided with the most effective EI services. By engaging with Maori families in group-focused interviews-asconversation, and then with their service providers, about their experiences of working together, researchers learned about what could provide effective services for other Maori families in similar situations.

year: 2011