title: Rheology of the gel formed in the California Mastitis Test

authors: Verbeek, Casparus Johan R.

subjects: Capillary viscosity

abstract: The California Mastitis Test has previously been adapted for use in an inline, cow-side sensor and relies on the fact that the viscosity of the gel formed during the test is proportional to the somatic cell concentration. In this paper, the use of capillary and rotational viscometry was compared in light of the expected rheology of the gel formed during the test. It was found that the gel is non-Newtonian, but the initial phase of viscosity increase was not due to shear dependence, but rather due to the gelation reaction. The maximum apparent viscosity of the gel was shear dependent while the time it took to reach the maximum was not truly shear dependent, but was rather dependent on the degree of mixing during gelation. This was confirmed by introducing a delay time prior to viscosity measurement, in both capillary and rotational viscometry. It was found that by mixing the reagent and infected milk, then delaying viscosity measurement for 30 s, shortened the time it took to reach maximum viscosity by more than 60 s. The maximum apparent viscosity, however, was unaffected. It was found that capillary viscometry worked well to correlate relative viscosity with somatic cell count, but that it was sensitive to the reagent concentration. It can therefore be deduced that the rheology of the gel is complicated not only by it being non-Newtonian, but also by the strong dependence on test conditions. These make designing a successful sensor much more challenging.

text: Rheology of the gel formed in the California Mastitis Test The California Mastitis Test has previously been adapted for use in an inline, cow-side sensor and relies on the fact that the viscosity of the gel formed during the test is proportional to the somatic cell concentration. In this paper, the use of capillary and rotational viscometry was compared in light of the expected rheology of the gel formed during the test. It was found that the gel is non-Newtonian, but the initial phase of viscosity increase was not due to shear dependence, but rather due to the gelation reaction. The maximum apparent viscosity of the gel was shear dependent while the time it took to reach the maximum was not truly shear dependent, but was rather dependent on the degree of mixing during gelation. This was confirmed by introducing a delay time prior to viscosity measurement, in both capillary and rotational viscometry. It was found that by mixing the reagent and infected milk, then delaying viscosity measurement for 30 s, shortened the time it took to reach maximum viscosity by more than 60 s. The maximum apparent viscosity, however, was unaffected. It was found that capillary viscometry worked well to correlate relative viscosity with somatic cell count, but that it was sensitive to the reagent concentration. It can therefore be deduced that the rheology of the gel is complicated not only by it being non-Newtonian, but also by the strong dependence on test conditions. These make designing a successful sensor much more challenging.

year: 2008

title: Combining Capabilities: A Resource Based Model of ICT Advantage

authors: Rastrick, Karyn Christine

subjects: resource based view

abstract: Significant levels of interest and organisational spending on information and communication technologies (ICT's) have triggered debate as to whether these investments are worthwhile.  While there has been some acknowledgement that investments result in positive returns, little is known about how ICT's may lead to competitive advantage.  This thesis starts to inform this gap, by investigating how ICT's are combined with other organisational resources in the context of an exemplar organisation.  The resource based view (RBV) is used as a framework to guide this study.  The RBV is an appropriate lens to guide this research due to its focus on resources and capabilities as sources of advantage.  This research employs an interpretive case study design based in an organisation with a long history of innovation and success with regard to ICT's.  

A grounded integrated model of advantage is presented based on two distinct groupings of integrated capabilities: lifecycle and embedded foundational capabilities.  The integrated model of advantage, along with key actions outlined to support such capabilities, provides researchers and practitioners with a new way of understanding ICT based advantages.  In essence, this research demonstrates how the total ownership of ICT's, within the case studied, presents a potential advantage.  The advantage is realised through the combination of capabilities and the inclusive approach to ICT development employed in the case organisation.  The research finds support from propositions of the RBV, in that the model demonstrates sources of advantage are based on organisational capabilities which are valuable, firm specific, and socially complex.  As such, the integration of capabilities evident in the integrated model of advantage is a likely source of sustained competitive advantage.  This means advantages gained from the integration of capabilities are not easily imitated or competed away.  Furthermore, advantages have an even greater potential to be a source of sustained advantage than any single resource or capability.  The research has important implications for theory and practice.  While many individual sources of advantage have been empirically examined, this research provides one of the first in-depth case studies which identify integrated capabilities.  Understanding such sources of advantage will help practitioners better understand and protect key organisational capabilities to sustain or extend competitive advantages.

text: Combining Capabilities: A Resource Based Model of ICT Advantage Significant levels of interest and organisational spending on information and communication technologies (ICT's) have triggered debate as to whether these investments are worthwhile.  While there has been some acknowledgement that investments result in positive returns, little is known about how ICT's may lead to competitive advantage.  This thesis starts to inform this gap, by investigating how ICT's are combined with other organisational resources in the context of an exemplar organisation.  The resource based view (RBV) is used as a framework to guide this study.  The RBV is an appropriate lens to guide this research due to its focus on resources and capabilities as sources of advantage.  This research employs an interpretive case study design based in an organisation with a long history of innovation and success with regard to ICT's.  

A grounded integrated model of advantage is presented based on two distinct groupings of integrated capabilities: lifecycle and embedded foundational capabilities.  The integrated model of advantage, along with key actions outlined to support such capabilities, provides researchers and practitioners with a new way of understanding ICT based advantages.  In essence, this research demonstrates how the total ownership of ICT's, within the case studied, presents a potential advantage.  The advantage is realised through the combination of capabilities and the inclusive approach to ICT development employed in the case organisation.  The research finds support from propositions of the RBV, in that the model demonstrates sources of advantage are based on organisational capabilities which are valuable, firm specific, and socially complex.  As such, the integration of capabilities evident in the integrated model of advantage is a likely source of sustained competitive advantage.  This means advantages gained from the integration of capabilities are not easily imitated or competed away.  Furthermore, advantages have an even greater potential to be a source of sustained advantage than any single resource or capability.  The research has important implications for theory and practice.  While many individual sources of advantage have been empirically examined, this research provides one of the first in-depth case studies which identify integrated capabilities.  Understanding such sources of advantage will help practitioners better understand and protect key organisational capabilities to sustain or extend competitive advantages.

year: 2008

title: Indigenising the Screen, Navigating the Currents of Change, a Vision of Fourth Cinema

authors: Bristowe, Joseph Curtis

subjects: Māori Knowledge

abstract: This thesis tests the hypothesis that it is possible to both decolonise and Indigenise the New Zealand cinema screen. Secondary research explores how those discourses that promoted roles and expectations for Māori within the New Zealand film industry were based principally upon historical colonial ideologies imposed by various means upon the native populous, and subsequently reproduced. It has been argued that these discourses of race, gender and religion have predominantly perpetuated negative belief systems about Māori, have contributed to the reproduction of stereotypical images of Māori, and that alternative structures of belief will be necessary in the field of cultural production. 
This thesis stems from this essential argument, and is fuelled by the researcher’s own desire to demystify, decolonise and Indigenise the New Zealand screen through the development of a Kaupapa Māori based strategic framework to inform/guide Māori scriptwriting/filmmaking practice. Drawing upon academic research, intimate cultural knowledge and the practice of creative writing, this thesis will explore the case that when thought and action are focused effectively through an applicable and practical Indigenous framework, an expression of collective identity based on individual qualities will deliver a better approach to Māori scriptwriting/filmmaking practice. This case will be developed and examined.

The case also depends on arguing that supposedly progressive representations of Māori in mainstream New Zealand films since the mid-1980s are not an incremental advance towards Fourth Cinema, because Māori subjectivity in film had still not been reconnected with a self-efficacy belief system based upon Indigenous foundations. The alternative approach effectively materialises strong anti-colonial perspectives aimed specifically at subverting long-held and dominant colonial discourses. Such an approach rejects the tradition of being defined, constructed and represented through discourses that serve to promote the interests of a majority and, in doing so, offers a collective vision for Fourth Cinema or Indigenous Cinema as advocated by the late Barry Barclay who campaigned for an Indigenous filmatic base grounded firmly in the philosophies, concepts and practices of the people. A tantalising larger question is whether specific strategic frameworks (e.g. in differing national contexts) tap into a common base of ‘Fourth Cinema’ values and philosophy, a base that then deeply affects all aspects of practice, from idea generation to narrative structures or the handling of time.

This thesis shall therefore be largely focused upon attempting to define and determine the foundations of an Indigenous knowledge system, and then upon how such definitions can revitalise those foundations for effective application in a contemporary context. Such an approach is founded upon the belief that what we are lacking in the Māori world is not the quantity of Māori knowledge; there is a veritable plethora of Māori knowledge still available. My research will seek to demonstrate that what is lacking is sufficient qualitatively powerful contemporary thought that yields ‘reflections’ contained in that knowledge, i.e., appropriate insight into their contemporary application.  This view is supported by the words of noted Māori Scholar Charles Royal (2002):

A key aspiration of all indigenous people is cultural survival. This means the perpetuation of our knowledge, our traditions, our worldviews, our philosophies. What this requires, however, is not so much the simple use of traditional knowledge but research into its principles, its fundamental view on reality and the creative application of those views in the contemporary context. Otherwise indigenous knowledge will remain merely historical phenomena, a museum curio bearing little relevance to the contemporary experience of indigenous peoples. (p. 11-12)

Importantly, I will examine the proposition that the more we discover, examine and utilise Māori knowledge, the more we will grow to understand new ways to create, design and fashion contemporary applications of this knowledge. Therefore, what is required and what should be of impetus to present day Māori scholars is a new spirit of enquiry, into the evolution of Indigenous knowledge systems and more specifically in this context, their role in relation to filmmaking processes. Such a belief is supported by the words of noted Ngāti Porou tohunga (expert in traditional lore) New Amsterdam Reedy (2011) who in relation to the application of Māori knowledge systems stated emphatically, ‘It’s not about how far back we can go, it’s about how far we can take it into the future.’ 

Such an approach is where I will argue the true revolutionary and emancipating thinking lies. Therefore, and of equally important significance, this thesis through the discussion of Māori knowledge and its contemporary application also engages debates surrounding the further development of Kaupapa Māori theory and more specifically, locates this within a filmmaking framework. In this way, Kaupapa Māori theory, as much as it is employed in this study is also subject to a self-reflective analysis and critique, therein providing an original contribution to the current literature in Kaupapa Māori theory and filmmaking and consequently developing a more comprehensive understanding of both fields of study.
For I will contend that Fourth Cinema is an effective way to understand the other, engage in new and integrated ways of thinking and living, and recognise how different bodies of knowledge, traditional or modern, Indigenous and Western may coexist for common purpose and mutual benefit. For this is the integrated and inclusive space where the complexity of the relationship between the colonial and post-colonial truly exists, one which brings together essential and non-essentialist post-colonial theoretical paradigms as well as Indigenous knowledge and contemporary Western knowledge systems thereby bridging worlds that, at first, seem to be strangers to one another, but may be more connected than they are different.

text: Indigenising the Screen, Navigating the Currents of Change, a Vision of Fourth Cinema This thesis tests the hypothesis that it is possible to both decolonise and Indigenise the New Zealand cinema screen. Secondary research explores how those discourses that promoted roles and expectations for Māori within the New Zealand film industry were based principally upon historical colonial ideologies imposed by various means upon the native populous, and subsequently reproduced. It has been argued that these discourses of race, gender and religion have predominantly perpetuated negative belief systems about Māori, have contributed to the reproduction of stereotypical images of Māori, and that alternative structures of belief will be necessary in the field of cultural production. 
This thesis stems from this essential argument, and is fuelled by the researcher’s own desire to demystify, decolonise and Indigenise the New Zealand screen through the development of a Kaupapa Māori based strategic framework to inform/guide Māori scriptwriting/filmmaking practice. Drawing upon academic research, intimate cultural knowledge and the practice of creative writing, this thesis will explore the case that when thought and action are focused effectively through an applicable and practical Indigenous framework, an expression of collective identity based on individual qualities will deliver a better approach to Māori scriptwriting/filmmaking practice. This case will be developed and examined.

The case also depends on arguing that supposedly progressive representations of Māori in mainstream New Zealand films since the mid-1980s are not an incremental advance towards Fourth Cinema, because Māori subjectivity in film had still not been reconnected with a self-efficacy belief system based upon Indigenous foundations. The alternative approach effectively materialises strong anti-colonial perspectives aimed specifically at subverting long-held and dominant colonial discourses. Such an approach rejects the tradition of being defined, constructed and represented through discourses that serve to promote the interests of a majority and, in doing so, offers a collective vision for Fourth Cinema or Indigenous Cinema as advocated by the late Barry Barclay who campaigned for an Indigenous filmatic base grounded firmly in the philosophies, concepts and practices of the people. A tantalising larger question is whether specific strategic frameworks (e.g. in differing national contexts) tap into a common base of ‘Fourth Cinema’ values and philosophy, a base that then deeply affects all aspects of practice, from idea generation to narrative structures or the handling of time.

This thesis shall therefore be largely focused upon attempting to define and determine the foundations of an Indigenous knowledge system, and then upon how such definitions can revitalise those foundations for effective application in a contemporary context. Such an approach is founded upon the belief that what we are lacking in the Māori world is not the quantity of Māori knowledge; there is a veritable plethora of Māori knowledge still available. My research will seek to demonstrate that what is lacking is sufficient qualitatively powerful contemporary thought that yields ‘reflections’ contained in that knowledge, i.e., appropriate insight into their contemporary application.  This view is supported by the words of noted Māori Scholar Charles Royal (2002):

A key aspiration of all indigenous people is cultural survival. This means the perpetuation of our knowledge, our traditions, our worldviews, our philosophies. What this requires, however, is not so much the simple use of traditional knowledge but research into its principles, its fundamental view on reality and the creative application of those views in the contemporary context. Otherwise indigenous knowledge will remain merely historical phenomena, a museum curio bearing little relevance to the contemporary experience of indigenous peoples. (p. 11-12)

Importantly, I will examine the proposition that the more we discover, examine and utilise Māori knowledge, the more we will grow to understand new ways to create, design and fashion contemporary applications of this knowledge. Therefore, what is required and what should be of impetus to present day Māori scholars is a new spirit of enquiry, into the evolution of Indigenous knowledge systems and more specifically in this context, their role in relation to filmmaking processes. Such a belief is supported by the words of noted Ngāti Porou tohunga (expert in traditional lore) New Amsterdam Reedy (2011) who in relation to the application of Māori knowledge systems stated emphatically, ‘It’s not about how far back we can go, it’s about how far we can take it into the future.’ 

Such an approach is where I will argue the true revolutionary and emancipating thinking lies. Therefore, and of equally important significance, this thesis through the discussion of Māori knowledge and its contemporary application also engages debates surrounding the further development of Kaupapa Māori theory and more specifically, locates this within a filmmaking framework. In this way, Kaupapa Māori theory, as much as it is employed in this study is also subject to a self-reflective analysis and critique, therein providing an original contribution to the current literature in Kaupapa Māori theory and filmmaking and consequently developing a more comprehensive understanding of both fields of study.
For I will contend that Fourth Cinema is an effective way to understand the other, engage in new and integrated ways of thinking and living, and recognise how different bodies of knowledge, traditional or modern, Indigenous and Western may coexist for common purpose and mutual benefit. For this is the integrated and inclusive space where the complexity of the relationship between the colonial and post-colonial truly exists, one which brings together essential and non-essentialist post-colonial theoretical paradigms as well as Indigenous knowledge and contemporary Western knowledge systems thereby bridging worlds that, at first, seem to be strangers to one another, but may be more connected than they are different.

year: 2017