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The Potential of Photo-Talks to Reveal the Development of Scientific Discourses  [PDF]
Cassie Quigley, Gayle Buck
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.32033
Abstract: This study explores the potential of a photo-elicitation technique, photo-talks (Serriere, 2010), for understanding how young girls understand, employ and translate new scientific discourses. Over the course of a nine week period, 24 kindergarten girls in an urban girls’ academy were observed, videotaped, photographed and interviewed while they were immersed into scientific discourse. This paper explicitly describes how their emerging discursive patterns were made visible through this methodological tool. The findings are presented in vignettes in three themes uncovered during our analysis which are the following: Presented the recollection of the scientific Discourse, Described the understanding of scientific Discourse, and Created an opportunity for the translation into everyday discourse. Science educators can benefit from this methodological tool as a reflective tool with their participants, to validate and/or complicate data. Additionally, this methodological tool serves to make discourse patterns more visible by providing a visual backdrop to the conversations thus revealing the development as it is occurring in young children.
Globalization and Science Education: The Implications for Indigenous Knowledge Systems
Cassie Quigley
International Education Studies , 2009, DOI: 10.5539/ies.v2n1p76
Abstract: Much of the current diversity literature in science education does not address the complexity of the issues of indigenous learners in their postcolonial environments and calls for a “one size fits all” instructional approach (Lee, 2001). Indigenous knowledge needs to be promoted and supported. There is currently a global initiative of maintaining worldviews, languages, and environments of which science education can be a part (McKinley, 2007). This paper is organized around five main topics that further guide the theoretical framework for this important area: a) describing postcolonialism and indigeneity related to science education, b) defining the terms indigenous knowledge, traditional ecological knowledge, c) western modern science and the effects of globalization on these terms d) examining the research on learning implications of IK and/or TEK in classrooms with a focus on the research into student learning in indigenous language, e) connecting place-based education to curricular implications for indigenous knowledge systems.
What Are the Characteristics of Arabinoxylan Gels?  [PDF]
Cassie Anderson, Senay Simsek
Food and Nutrition Sciences (FNS) , 2018, DOI: 10.4236/fns.2018.97061
Abstract: Arabinoxylan gels are commonly characterized to determine the feasibility of utilizing them in numerous applications such as drug delivery systems. The general characteristics of numerous types of arabinoxylan gels as well as their susceptibility to degradation are discussed in this manuscript. There are two main types of arabinoxylan: water-extractable and alkali-extractable. The physicochemical characteristics of the arabinoxylan determine its extractability and gelling characteristics. Gels can be created from numerous types of arabinoxylan including wheat (Triticum aestivum L.) and maize (Zea mays L.). These gels can also be developed with the addition of protein and/or β-glucan, which results in modified mechanical properties of the gels. To create a sound gel, arabinoxylan must be cross-linked, which is often done through ferulic acid. When this takes place, the gel developed is thermo-irreversible, unsusceptible to pH and electrolyte interactions, and does not undergo syneresis during storage. Despite these strengths, arabinoxylan gels can be broken down by the enzymes produced by Bifidobacterium, which is present in the human large intestine. After further development and research on these gels, they could be utilized for many purposes.
Survival Model Inference Using Functions of Brownian Motion  [PDF]
John O’Quigley
Applied Mathematics (AM) , 2012, DOI: 10.4236/am.2012.36098
Abstract: A family of tests for the presence of regression effect under proportional and non-proportional hazards models is described. The non-proportional hazards model, although not completely general, is very broad and includes a large number of possibilities. In the absence of restrictions, the regression coefficient, β(t), can be any real function of time. When β(t) = β, we recover the proportional hazards model which can then be taken as a special case of a non-proportional hazards model. We study tests of the null hypothesis; H0:β(t) = 0 for all t against alternatives such as; H1:∫β(t)dF(t) ≠ 0 or H1:β(t) ≠ 0 for some t. In contrast to now classical approaches based on partial likelihood and martingale theory, the development here is based on Brownian motion, Donsker’s theorem and theorems from O’Quigley [1] and Xu and O’Quigley [2]. The usual partial likelihood score test arises as a special case. Large sample theory follows without special arguments, such as the martingale central limit theorem, and is relatively straightforward.
The perceptions of teachers and school principals of each other's disposition towards teacher involvement in school reform
Cassie Swanepoel
South African Journal of Education , 2008,
Abstract: Worldwide teachers are faced with the task of continuously facilitating and implementing educational reform that has been designed without their participation. This exclusion of the key agents, who must mediate between the change agenda and actual change in the classroom, from the planning and decision-making processes, is detrimental to educational reform. Although school-based management has recently emerged as the instrument to accomplish the decentralisation of decision-making powers to school level, the success thereof depends largely on school principals' disposition regarding teacher involvement. It is argued that the expectation of principals regarding their own leadership role, as well as the professional role teachers should fulfil, is a primary determinant of principals' willingness to involve teachers in responsibility-taking processes outside the classroom. The results from an empirical investigation revealed that principals' perception, of the wishes of teachers regarding involvement, significantly underestimated teachers' actual involvement wishes. Likewise, the expectation of teachers regarding the willingness of principals to involve them was a significant underestimation of the involvement level principals are actually in favour of. These misperceptions probably discourage actual school-based management and could jeopardize the implementation of educational reform in general.
A comparison between the views of teachers in South Africa and six other countries on involvement in school change
Cassie Swanepoel
South African Journal of Education , 2009,
Abstract: Worldwide, and especially in South Africa, change and decentralised decision-making have been topical issues in the provision of education for the past years. It appears that teachers - the key agents in implementing the policies concerned - are largely ignored in the pre-implementation phases, and treated merely as implementers of these policies. The results from an empirical investigation revealed that the teachers in the South African sample expressed an exceptional degree of eagerness to be involved in decision-making and responsibility-taking concerning school change, even in aspects of management that could be considered as the principal's 'turf'. Although the views of a group of teachers in six other countries showed very similar result patterns, the sample of South African teachers was considerably more eager to be involved in initiatives of school change and related responsibilities than the teachers in the samples of the other countries. The results are illuminating, taking into consideration the increased workload of teachers, as well as certain other factors. Possible explanations for these observations are discussed.
Chronic Kidney Disease: Highlights for the General Pediatrician
Raymond Quigley
International Journal of Pediatrics , 2012, DOI: 10.1155/2012/943904
Abstract: Chronic kidney disease in the pediatric population has been increasing. Early detection and treatment can slow down the progression of kidney disease and help prevent the development of end stage renal disease. In addition, as the kidney function declines, there are many pathophysiologic interactions with other organ systems that need to be monitored and treated. In particular, because of impaired vitamin D metabolism, calcium and phosphorus homeostasis is dysregulated and results in secondary bone disease. Anemia is common due to a number of factors including impaired erythropoietin production. Growth is often impacted by chronic kidney disease but can be improved by proper treatment. Complications of chronic kidney disease can be minimized by proper monitoring and treatment of these parameters. The general pediatrician plays a critical role in this process.
Welcome to Computers––A New Open Access Journal for Computer Science
Aaron Quigley
Computers , 2012, DOI: 10.3390/computers1010001
Abstract: For the past seven decades, computers have radically changed the world we live in. From machines for calculation, computers are now platforms for information processing and computation, supporting the entire spectrum of human endeavour. While computer science is a relatively young field, it is shaping how people live in our modern world. There is not an area of human society that has not been affected by computers and the power they afford us. Computer science touches on every facet of science, art, engineering and economics. Its impact ranges from electronic commerce to improved medical devices; and from enhanced communication to new forms of media and entertainment. The future, with ubiquitous computational power and natural user interfaces, will extend and enhance all human capabilities. To reach this future we need to quickly and freely disseminate our cutting edge research results globally, and this journal aims to help us achieve that. [...]
Changing face of irritable bowel syndrome
Quigley E
World Journal of Gastroenterology , 2006,
Abstract: Recent years have witnessed tremendous progress in our understanding of irritable bowel syndrome (IBS). It is evident that this is a truly global disease associated with significant symptoms and impairments in personal and social functioning for afflicted individuals. Advances in our understanding of gut flora-mucosal interactions, the enteric nervous system and the brain-gut axis have led to substantial progress in the pathogenesis of symptoms in IBS and have provided some hints towards the basic etiology of this disorder, in some subpopulations, at the very least. We look forward to a time when therapy will be addressed to pathophysiology and perhaps, even to primary etiology. In the meantime, a model based on a primary role for intestinal inflammation serves to integrate the various strands, which contribute to the presentation of IBS.
Contributions of the Professional, Public, and Private Sectors in Promoting Patient Safety
Quigley, E
Online Journal of Issues in Nursing , 2003,
Abstract: Patient safety has become a national priority. This article discusses the contributions of the professional, public, and private sectors regarding patient safety. Definitions and detailed examination of the issues surrounding patient safety are presented. Ideas to create improved systems for the important issue of patient safety are explored. The opportunity for increased interaction among the various groups has great potential. Health care organizations that exemplify best practices in patient safety will be rewarded by the purchasers of health care and by accreditation agencies. The Leapfrog Group and the Joint Commission on Accreditation of Health Care Organizations are leading this effort. Nursing has a major role in leading efforts to find solutions to advance patient safety standards.
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