title: Scaling of Electrode-Electrolyte Interface Model Parameters In Phosphate Buffered Saline

authors: Jones, Mark Hedley

subjects: Electrical stimulation

abstract: We report how the impedance presented by a platinum electrode scales with the concentration of phosphate buffered saline (PBS). We find that the constant phase element of the model scales with approximately the log of concentration, whereas the resistivity is inversely proportional. Using a novel DC measurement technique we show that the Faradaic response of a platinum electrode, and thus the safe exposure limit, does not scale with concentration below 900mV overpotential across a pair of electrodes. We compare objective measurements made in saline to those made in the spinal cavity of live sheep. We comment upon the appropriateness of using PBS as a substitute for living sheep.

text: Scaling of Electrode-Electrolyte Interface Model Parameters In Phosphate Buffered Saline We report how the impedance presented by a platinum electrode scales with the concentration of phosphate buffered saline (PBS). We find that the constant phase element of the model scales with approximately the log of concentration, whereas the resistivity is inversely proportional. Using a novel DC measurement technique we show that the Faradaic response of a platinum electrode, and thus the safe exposure limit, does not scale with concentration below 900mV overpotential across a pair of electrodes. We compare objective measurements made in saline to those made in the spinal cavity of live sheep. We comment upon the appropriateness of using PBS as a substitute for living sheep.

year: 2014

title: Making use of action learning in business schools: The UK and New Zealand experience

authors: Hand, Leonard

subjects: business school

abstract: INTRODUCTION Most business schools originated in the latter half of the twentieth century. Often they were staffed by individuals from the business environment who were not skilled in teaching or research methods. The new academics were required to facilitate the learning of students in an academic environment. Often they adopted a narrowly focused approach to knowledge creation, scientific positivism, because the approach was well accepted in society generally and they believed such an approach was expected of them.
METHOD We provide details from our personal histories, and from the literature, to demonstrate that scientific positivism has often provided an unsuitable base for the development of teaching, learning, and critical thinking skills in business graduates. We are critical of our broad working environment during the last decades of the twentieth century, because it has been dominated by the scientific positivism approach to understanding.
ANALYSIS We argue that any search for universal solutions to problems of learning, as encouraged by scientific positivism, is futile because such universals do not exist. However, much energy is being expended business academics seeking to improve the learning environments in their classrooms. A more accommodating approach to educational research is required.
CONCLUSION Business academics may benefit, from the employment of an action learning methodology.

text: Making use of action learning in business schools: The UK and New Zealand experience INTRODUCTION Most business schools originated in the latter half of the twentieth century. Often they were staffed by individuals from the business environment who were not skilled in teaching or research methods. The new academics were required to facilitate the learning of students in an academic environment. Often they adopted a narrowly focused approach to knowledge creation, scientific positivism, because the approach was well accepted in society generally and they believed such an approach was expected of them.
METHOD We provide details from our personal histories, and from the literature, to demonstrate that scientific positivism has often provided an unsuitable base for the development of teaching, learning, and critical thinking skills in business graduates. We are critical of our broad working environment during the last decades of the twentieth century, because it has been dominated by the scientific positivism approach to understanding.
ANALYSIS We argue that any search for universal solutions to problems of learning, as encouraged by scientific positivism, is futile because such universals do not exist. However, much energy is being expended business academics seeking to improve the learning environments in their classrooms. A more accommodating approach to educational research is required.
CONCLUSION Business academics may benefit, from the employment of an action learning methodology.

year: 2006

title: Are You Listening? The Voice of Waitaha, A Forgotten People.

authors: Reese, Alistair William

subjects: maori

abstract: This thesis is a study of Waitaha, a Bay of Plenty iwi that has been marginalized through
the loss of most of its land, much of its language, tikanga, and mana. The purpose of the
work is to communicate, through the 'voice' and the history of the people, a chronicle, of
their alienation to a Pākehā audience that remains in large part ignorant and distant from
their plight.
The thesis is motivated by an academic responsibility to the Treaty of Waitangi and the
lack of understanding to the present needs of Māori as evidenced for example, by the
support for the January 2004 Orewa speech, by the leader of the National Party, Don
Brash. It is predicated upon the understanding that this response, which minimalises the
impact of colonization upon Māori, is constructed by many, through a convenience of
distance. It is motivated also on the understanding that most Pākehā who now inhabit the rohe of Waitaha, are completely ignorant of the identity of tangata whenua. It is hoped
that the presentation of the Waitaha story, will provoke a greater empathy from Pākehā,
and thereby facilitate an environment, whereby grievances can be addressed in an
environment of greater understanding.
The thesis is a qualitative based research exercise, carried out in consultation with
kaumātua and other Waitaha members, and attempts to acknowledge and integrate current kaupapa Māori epistemologies with traditional Western academic methodology.
The study uses interviews, Waitangi Tribunal evidence, and other historical references to
construct a narrative that conveys something of the 'voice' of Waitaha. Specifically, it
outlines a chronology of Waitaha settlement, followed by a description of their encounter
with Pākehā, the consequent alienation of the majority of their lands by the Crown, and
concludes, with a glimpse into the current circumstance of Manoeka, the papakainga of
Waitaha.

text: Are You Listening? The Voice of Waitaha, A Forgotten People. This thesis is a study of Waitaha, a Bay of Plenty iwi that has been marginalized through
the loss of most of its land, much of its language, tikanga, and mana. The purpose of the
work is to communicate, through the 'voice' and the history of the people, a chronicle, of
their alienation to a Pākehā audience that remains in large part ignorant and distant from
their plight.
The thesis is motivated by an academic responsibility to the Treaty of Waitangi and the
lack of understanding to the present needs of Māori as evidenced for example, by the
support for the January 2004 Orewa speech, by the leader of the National Party, Don
Brash. It is predicated upon the understanding that this response, which minimalises the
impact of colonization upon Māori, is constructed by many, through a convenience of
distance. It is motivated also on the understanding that most Pākehā who now inhabit the rohe of Waitaha, are completely ignorant of the identity of tangata whenua. It is hoped
that the presentation of the Waitaha story, will provoke a greater empathy from Pākehā,
and thereby facilitate an environment, whereby grievances can be addressed in an
environment of greater understanding.
The thesis is a qualitative based research exercise, carried out in consultation with
kaumātua and other Waitaha members, and attempts to acknowledge and integrate current kaupapa Māori epistemologies with traditional Western academic methodology.
The study uses interviews, Waitangi Tribunal evidence, and other historical references to
construct a narrative that conveys something of the 'voice' of Waitaha. Specifically, it
outlines a chronology of Waitaha settlement, followed by a description of their encounter
with Pākehā, the consequent alienation of the majority of their lands by the Crown, and
concludes, with a glimpse into the current circumstance of Manoeka, the papakainga of
Waitaha.

year: 2006