title: The Role of the Arab-Islamic World in the Rise of the West: Implications for Contemporary Trans-Cultural Relations [Book Review]

authors: Drury, Abdullah

abstract: This article reviews the book 'The Role of the Arab-Islamic World in the Rise of the West: Implications for Contemporary Trans-Cultural Relations', edited by Nayef R. F. Al-Rodhan.

text: The Role of the Arab-Islamic World in the Rise of the West: Implications for Contemporary Trans-Cultural Relations [Book Review] This article reviews the book 'The Role of the Arab-Islamic World in the Rise of the West: Implications for Contemporary Trans-Cultural Relations', edited by Nayef R. F. Al-Rodhan.

year: 2013-07

title: The use of positive and negative penalty functions in solving constrained optimization problems and partial differential equations

authors: Monterrubio Salazar, Luis Emilio

subjects: Rayleigh-Ritz Method

abstract: The Rayleigh-Ritz Method together with the Penalty Function Method is used to investigate the use of different types of penalty parameters. The use of artificial springs as penalty parameters is a very well established procedure to model constraints in the Rayleigh-Ritz Method, the Finite Element Method and other numerical methods. Historically, large positive values were used to define the stiffness coefficient of artificial springs, until recent publications demonstrated that it is possible to use negative values to define the stiffness coefficients of the springs. Furthermore, recent publications show that constraints can be enforced using positive and negative mass or inertia in vibration problems and in a more generic sense using eigenpenalty parameters which are penalty parameters in the matrix associated with the eigenvalue. Before the commencement of this thesis, solutions using artificial inertia were published only for beams and simple spring-mass systems.
In this thesis the use of all possible types of penalty parameters are investigated in vibration problems of Euler-Bernoulli beams, thin plates and shallow shells and in elastic stability analysis of Euler-Bernoulli beams, including penalty parameters associated with the geometrical stiffness matrix. The study includes the use of penalty parameters for both enforcing support boundary conditions and continuity conditions along structural joints.
This investigation started with the selection of the set of admissible functions that would: (a) allow modelling of beams, plates and shells in completely free boundary conditions; (b) not present any limitation in the number of functions that can be used in the solution. This gives the possibility to converge to the constraint solution and to model any type of boundary conditions.
The procedure proposed in this work combines several advantages: accuracy of the results, relative fast convergence, simplicity of the set of admissible functions and flexibility to define boundary conditions. While there are other procedures that may give better accuracy for specific cases, the proposed method is more widely applicable.
The procedure used in this work also includes a way to check for round-off errors and ill-conditioning in the results; as well as a way to bracket the  exact  solution with upper and lower-bound results.

text: The use of positive and negative penalty functions in solving constrained optimization problems and partial differential equations The Rayleigh-Ritz Method together with the Penalty Function Method is used to investigate the use of different types of penalty parameters. The use of artificial springs as penalty parameters is a very well established procedure to model constraints in the Rayleigh-Ritz Method, the Finite Element Method and other numerical methods. Historically, large positive values were used to define the stiffness coefficient of artificial springs, until recent publications demonstrated that it is possible to use negative values to define the stiffness coefficients of the springs. Furthermore, recent publications show that constraints can be enforced using positive and negative mass or inertia in vibration problems and in a more generic sense using eigenpenalty parameters which are penalty parameters in the matrix associated with the eigenvalue. Before the commencement of this thesis, solutions using artificial inertia were published only for beams and simple spring-mass systems.
In this thesis the use of all possible types of penalty parameters are investigated in vibration problems of Euler-Bernoulli beams, thin plates and shallow shells and in elastic stability analysis of Euler-Bernoulli beams, including penalty parameters associated with the geometrical stiffness matrix. The study includes the use of penalty parameters for both enforcing support boundary conditions and continuity conditions along structural joints.
This investigation started with the selection of the set of admissible functions that would: (a) allow modelling of beams, plates and shells in completely free boundary conditions; (b) not present any limitation in the number of functions that can be used in the solution. This gives the possibility to converge to the constraint solution and to model any type of boundary conditions.
The procedure proposed in this work combines several advantages: accuracy of the results, relative fast convergence, simplicity of the set of admissible functions and flexibility to define boundary conditions. While there are other procedures that may give better accuracy for specific cases, the proposed method is more widely applicable.
The procedure used in this work also includes a way to check for round-off errors and ill-conditioning in the results; as well as a way to bracket the  exact  solution with upper and lower-bound results.

year: 2009

title: Keynote Address: Barriers and incentives to Māori participation in the profession of psychology

authors: Levy, Michelle Patricia

subjects: Maori

abstract: It is well known that Māori are overrepresented
within the client group of
psychologists. Despite ongoing attempts to
recruit and retain more Māori within the
discipline of psychology, the numbers of
Māori psychologists continues to remain
low, raising serious concerns about the
ability of the profession to effectively meet
the needs of its clientele. The objectives of this study were to
identify the, barriers to, and incentives for improving the recruitment and retention
of Māori in the profession of
psychology and Māori to gain and maintain registration
as psychologists. This paper is
based on the full report provided to the
New Zealand Psychologists’ Board. The findings in this study
clearly demonstrate that in order to attract
Māori to participate in psychology, the
majority of environments need to change
substantially. It is simply not enough for
organisations, whether they are educational, professional, or service delivery agencies,
to identify the need for more Māori
psychologists, yet still fail to commit to,
and actively engage in, altering long
identified environmental factors that are
barriers to Māori participation.

text: Keynote Address: Barriers and incentives to Māori participation in the profession of psychology It is well known that Māori are overrepresented
within the client group of
psychologists. Despite ongoing attempts to
recruit and retain more Māori within the
discipline of psychology, the numbers of
Māori psychologists continues to remain
low, raising serious concerns about the
ability of the profession to effectively meet
the needs of its clientele. The objectives of this study were to
identify the, barriers to, and incentives for improving the recruitment and retention
of Māori in the profession of
psychology and Māori to gain and maintain registration
as psychologists. This paper is
based on the full report provided to the
New Zealand Psychologists’ Board. The findings in this study
clearly demonstrate that in order to attract
Māori to participate in psychology, the
majority of environments need to change
substantially. It is simply not enough for
organisations, whether they are educational, professional, or service delivery agencies,
to identify the need for more Māori
psychologists, yet still fail to commit to,
and actively engage in, altering long
identified environmental factors that are
barriers to Māori participation.

year: 2003