title: Web crippling design of cold-formed stainless steel channels under interior-two-flange loading condition using deep belief network

authors: Fang, Zhiyuan (Arthur)

subjects: stainless steel

abstract: This research presents a deep-learning framework, namely a deep belief network (DBN), for analyzing the interior-two-flange web crippling performance of cold-formed stainless steel channels with centered and offset web holes. An elastoplastic finite element (FE) model, validated using 101 experimental results which were previously reported in the literature, generates a total of 43,200 data points for training the DBN. When compared to a total of 54 experimental results published in the literature, the DBN predictions were shown to be approximately 10% more conservative. Using the same large training data, the developed DBN model outperformed the Backpropagation Neural Network (a typical shallow artificial neural network) and the PaddlePaddle-based linear regression model. A parametric analysis was then performed using the DBN predictions to explore the effect of section size, web holes and bearing length. Design equations for (reduced) web crippling strength are proposed for the cold-formed stainless steel perforated channels, and the feasibility of the proposed equations was assessed by the conducted reliability analysis.

text: Web crippling design of cold-formed stainless steel channels under interior-two-flange loading condition using deep belief network This research presents a deep-learning framework, namely a deep belief network (DBN), for analyzing the interior-two-flange web crippling performance of cold-formed stainless steel channels with centered and offset web holes. An elastoplastic finite element (FE) model, validated using 101 experimental results which were previously reported in the literature, generates a total of 43,200 data points for training the DBN. When compared to a total of 54 experimental results published in the literature, the DBN predictions were shown to be approximately 10% more conservative. Using the same large training data, the developed DBN model outperformed the Backpropagation Neural Network (a typical shallow artificial neural network) and the PaddlePaddle-based linear regression model. A parametric analysis was then performed using the DBN predictions to explore the effect of section size, web holes and bearing length. Design equations for (reduced) web crippling strength are proposed for the cold-formed stainless steel perforated channels, and the feasibility of the proposed equations was assessed by the conducted reliability analysis.

year: 2023-01

title: Judging What They Do:  Formal, Informal, and Self Appraisal of  New Zealand (Rural) Primary School Principals

authors: Earl Rinehart, (Suzanne) Kerry

subjects: Principal appraisal,

abstract: As in other western market economies, New Zealand government education policy reflects neoliberal economic thinking, neo-conservative ideals and practices of an audit culture. New Zealand’s self-managing schools’ policy, introduced in 1989, changed significantly the complexity of school principals’ work. Leadership frameworks and professional standards have ‘captured’ this complexity and support appraisal of principals. 
Neoliberal/neoconservative thinking has also influenced educational leadership research by focusing on individual leader characteristics and specific cases of ‘successful’ school principalship. Instead in this study formative assessment research provides the lens to (re)consider appraisal experience of six school principals in small rural primary schools. Using a contemporary-pragmatist approach, interviews, abductive processes of analysis and literary forms of representation were chosen as appropriate research design elements. The research concern was: to what extent does principal appraisal recognise the nature and complexity of expectations of principal work in specific school settings and consider the human being undertaking this work?  
Insights from this study come under the umbrella phrase it is people that matter. Thus, appraisal in this study reflects the nature of principals’ work—in the significance of interaction, management and professional judgement—more than aspects of administration or assessment. Recommendations include: future appraisal policy values principal-appraiser interaction; principal preparation and professional development programmes advocate for the importance of self-care and management in principalship; and research further explores the nature and influence of school communities on principals’ decision-making and the judgement of principals’ work.

text: Judging What They Do:  Formal, Informal, and Self Appraisal of  New Zealand (Rural) Primary School Principals As in other western market economies, New Zealand government education policy reflects neoliberal economic thinking, neo-conservative ideals and practices of an audit culture. New Zealand’s self-managing schools’ policy, introduced in 1989, changed significantly the complexity of school principals’ work. Leadership frameworks and professional standards have ‘captured’ this complexity and support appraisal of principals. 
Neoliberal/neoconservative thinking has also influenced educational leadership research by focusing on individual leader characteristics and specific cases of ‘successful’ school principalship. Instead in this study formative assessment research provides the lens to (re)consider appraisal experience of six school principals in small rural primary schools. Using a contemporary-pragmatist approach, interviews, abductive processes of analysis and literary forms of representation were chosen as appropriate research design elements. The research concern was: to what extent does principal appraisal recognise the nature and complexity of expectations of principal work in specific school settings and consider the human being undertaking this work?  
Insights from this study come under the umbrella phrase it is people that matter. Thus, appraisal in this study reflects the nature of principals’ work—in the significance of interaction, management and professional judgement—more than aspects of administration or assessment. Recommendations include: future appraisal policy values principal-appraiser interaction; principal preparation and professional development programmes advocate for the importance of self-care and management in principalship; and research further explores the nature and influence of school communities on principals’ decision-making and the judgement of principals’ work.

year: 2017

title: Observations by and conversations with health workers and hospital personnel involved in transferring Maori patients and whānau to Waikato Hospital in Aotearoa New Zealand

authors: Masters-Awatere, Bridgette

subjects: Science & Technology

abstract: The predominant focus of Aotearoa New Zealand’s public health system on biomedical models of health has left little room for meaningful engagement with holistic indigenous approaches. Culturally appropriate provision and support are recognized for their relevance and importance during hospital transferals. Hospital staff involved in transfers to one of New Zealand’s trauma centers share their observations of whānau Māori engagement during an admission away from their home base. Sixteen key informants share their experiences, which are presented as strategies and challenges to whānau engagement. Three main themes highlight challenges within the health system that make it difficult for hospital staff to engage whānau in the desired ways and as often as both parties would like. Key informants described services and practices that are not designed with patients and their whānau in mind; instead they are designed by clinicians around the needs of administrative systems. As employees within the public health system, key informants felt powerless to challenge dominant settings. Nevertheless, employees managed to circumnavigate processes. Our findings highlight the need for continued decolonization and anti-racism work within public health settings.

text: Observations by and conversations with health workers and hospital personnel involved in transferring Maori patients and whānau to Waikato Hospital in Aotearoa New Zealand The predominant focus of Aotearoa New Zealand’s public health system on biomedical models of health has left little room for meaningful engagement with holistic indigenous approaches. Culturally appropriate provision and support are recognized for their relevance and importance during hospital transferals. Hospital staff involved in transfers to one of New Zealand’s trauma centers share their observations of whānau Māori engagement during an admission away from their home base. Sixteen key informants share their experiences, which are presented as strategies and challenges to whānau engagement. Three main themes highlight challenges within the health system that make it difficult for hospital staff to engage whānau in the desired ways and as often as both parties would like. Key informants described services and practices that are not designed with patients and their whānau in mind; instead they are designed by clinicians around the needs of administrative systems. As employees within the public health system, key informants felt powerless to challenge dominant settings. Nevertheless, employees managed to circumnavigate processes. Our findings highlight the need for continued decolonization and anti-racism work within public health settings.

year: 2020