title: Theoretical Investigation of NMDA Effect on the Cerebral Cortex

authors: AL Saidi, Waleed Hamdan Khalfan

subjects: NMDA  Effect

abstract: This thesis examines the dynamical behaviour of incorporating NMDA (an excitatory
neurotransmitter) for the electrodynamic model of the cerebral cortex. The
model used is the mean-field model developed by Steyn-Ross et al. (2005) which
describes the behaviour of the cortex in terms of parameters averaged over spatially
localised populations. The behaviour of the model is determined by the four control
parameters: inhibitory effect li, subcortical drive s, and NMDA neurotransmitter
e ect set by an excitatory factor le and the magnesium concentration C. Adopting
this model could give a better understanding of the cortex functionality and the
anaesthetic mechanism.
The model predicts that there are either one or three stationary states available to
the cortex. We identify two of these with highly activated state and a quiescent
state and focus on the transition between the two. Theoretical stability predictions
(eigenvalue analysis) verified by a numerical simulation show that the system is
unstable between the two Hopf bifurcations. In addition, in the stable region the
steady states remains stable under a small perturbation, while in the unstable region
either a transition between states or a limit cycle (oscillation) occurs depending on
the position of the steady state.

text: Theoretical Investigation of NMDA Effect on the Cerebral Cortex This thesis examines the dynamical behaviour of incorporating NMDA (an excitatory
neurotransmitter) for the electrodynamic model of the cerebral cortex. The
model used is the mean-field model developed by Steyn-Ross et al. (2005) which
describes the behaviour of the cortex in terms of parameters averaged over spatially
localised populations. The behaviour of the model is determined by the four control
parameters: inhibitory effect li, subcortical drive s, and NMDA neurotransmitter
e ect set by an excitatory factor le and the magnesium concentration C. Adopting
this model could give a better understanding of the cortex functionality and the
anaesthetic mechanism.
The model predicts that there are either one or three stationary states available to
the cortex. We identify two of these with highly activated state and a quiescent
state and focus on the transition between the two. Theoretical stability predictions
(eigenvalue analysis) verified by a numerical simulation show that the system is
unstable between the two Hopf bifurcations. In addition, in the stable region the
steady states remains stable under a small perturbation, while in the unstable region
either a transition between states or a limit cycle (oscillation) occurs depending on
the position of the steady state.

year: 2008

title: Advancements in work-integrated learning research: Editorial insights

authors: Zegwaard, Karsten E.

subjects: Developments

abstract: Over the past two decades, scholarship into work-integrated learning (WIL) has significantly expanded,
highlighting the importance of its contribution to higher education. The International Journal of Work-Integrated
Learning (IJWIL) has been an important part of the promotion of research and scholarship of WIL, and the
dissemination of new knowledge. This current IJWIL Issue includes three articles that provide a bibliometric
analysis of what is now a significant body of WIL literature. These analyses reveal trends in themes such as equity
and access, professional identity development, stakeholder engagement, risks, and highlight the high level of collaboration among WIL researchers. This editorial emphasizes the advances of WIL scholarship by further identifying key developments and topical challenges and linking these to recent published WIL literature to inspire further research to enhance the understanding of WIL as a transformative pedagogy.

text: Advancements in work-integrated learning research: Editorial insights Over the past two decades, scholarship into work-integrated learning (WIL) has significantly expanded,
highlighting the importance of its contribution to higher education. The International Journal of Work-Integrated
Learning (IJWIL) has been an important part of the promotion of research and scholarship of WIL, and the
dissemination of new knowledge. This current IJWIL Issue includes three articles that provide a bibliometric
analysis of what is now a significant body of WIL literature. These analyses reveal trends in themes such as equity
and access, professional identity development, stakeholder engagement, risks, and highlight the high level of collaboration among WIL researchers. This editorial emphasizes the advances of WIL scholarship by further identifying key developments and topical challenges and linking these to recent published WIL literature to inspire further research to enhance the understanding of WIL as a transformative pedagogy.

year: 2024

title: An evaluation of Te Rau Puawai workforce 100: Addressing the recruitment and retention of Maori students in tertiary education institutions: A literature review

authors: Nikora, Linda Waimarie

subjects: Maori students

abstract: To evaluate the Te Rau Puawai programme, the Ministry of Health commissioned the
Maori and Psychology Research Unit of the University of Waikato in July 2001. The
overall aim of the evaluation was to provide the Ministry with a clearer understanding
of the programme including: the perceived critical success factors, the barriers if any
regarding Te Rau Puawai, the impact of the programme, the extent to which the
programme may be transferable, gaps in the programme, and suggested
improvements.
To achieve this end, a review of relevant literature was undertaken to provide a
framework to understand the patterns that arose from the information that we
collected as part of this evaluation.
The review of literature is presented in this technical report.

text: An evaluation of Te Rau Puawai workforce 100: Addressing the recruitment and retention of Maori students in tertiary education institutions: A literature review To evaluate the Te Rau Puawai programme, the Ministry of Health commissioned the
Maori and Psychology Research Unit of the University of Waikato in July 2001. The
overall aim of the evaluation was to provide the Ministry with a clearer understanding
of the programme including: the perceived critical success factors, the barriers if any
regarding Te Rau Puawai, the impact of the programme, the extent to which the
programme may be transferable, gaps in the programme, and suggested
improvements.
To achieve this end, a review of relevant literature was undertaken to provide a
framework to understand the patterns that arose from the information that we
collected as part of this evaluation.
The review of literature is presented in this technical report.

year: 2002-05-01