Estimating youth locomotion ground reaction forces using an accelerometer-based activity monitor.

To address a variety of questions pertaining to the interactions between physical activity, musculoskeletal loading and musculoskeletal health/injury/adaptation, simple methods are needed to quantify, outside a laboratory setting, the forces acting on the human body during daily activities. The purpose of this study was to develop a statistically based model to estimate peak vertical ground reaction force (pVGRF) during youth gait. 20 girls (10.9 ± 0.9 years) and 15 boys (12.5 ± 0.6 years) wore a Biotrainer AM over their right hip. Six walking and six running trials were completed after a standard warm-up. Average AM intensity (g) and pVGRF (N) during stance were determined. Repeated measures mixed effects regression models to estimate pVGRF from Biotrainer activity monitor acceleration in youth (girls 10-12, boys 12-14 years) while walking and running were developed. Log transformed pVGRF had a statistically significant relationship with activity monitor acceleration, centered mass, sex (girl), type of locomotion (run), and locomotion type-acceleration interaction controlling for subject as a random effect. A generalized regression model without subject specific random effects was also developed. The average absolute differences between the actual and predicted pVGRF were 5.2% (1.6% standard deviation) and 9% (4.2% standard deviation) using the mixed and generalized models, respectively. The results of this study support the use of estimating pVGRF from hip acceleration using a mixed model regression equation

Hiding in Plain Sight: Identifying Computational Thinking in the Ontario Elementary School Curriculum

Given a growing digital economy with complex problems, demands are being made for education to address computational thinking (CT) – an approach to problem solving that draws on the tenets of computer science. We conducted a comprehensive content analysis of the Ontario elementary school curriculum documents for 44 CT-related terms to examine the extent to which CT may already be considered within the curriculum. The quantitative analysis strategy provided frequencies of terms, and a qualitative analysis provided information about how and where terms were being used. As predicted, results showed that while CT terms appeared mostly in Mathematics, and concepts and perspectives were more frequently cited than practices, related terms appeared across almost all disciplines and grades. Findings suggest that CT is already a relevant consideration for educators in terms of concepts and perspectives; however, CT practices should be more widely incorporated to promote 21st century skills across disciplines. Future research would benefit from continued examination of the implementation and assessment of CT and its related concepts, practices, and perspectives

Multispectral analysis of high spatial resolution 256-channel radiometrics for soil and regolith mapping

Over the past decade studies into the application of radiometrics for soil and regolith mapping have met with mixed response. While the use of radiometric data for regolith mapping has been generally well received, radiometric methods have not commonly been adopted to assist and improve soil mapping. This thesis contributes to the development of radiometric techniques as soil and regolith mapping tools by examining soil characteristics and radiometric response using non-standard radiometric methods. This is accomplished through the development of new data processing methodologies, which extracts additional information from standard radiometric data that is unattainable using standard processing methods, and development of a new interpretation approach to soil and regolith mapping employing the multispectral processed radiometric data. The new multispectral processing methodology resolves seven gamma ray peaks from standard 256-channel NaI radiometric data to produce new radiometric uranium ternary, thorium ternary and uranium ratio imagery. Changes in the gamma ray relationships, identified through the new imagery, identify changes in soil and/or environmental conditions that are absent or difficult to identify in the standard radiometric imagery. With the isolation of non-standard thorium channels 228 [superscript] Ac (900 keV) and 228 [superscript] Ac (1600 keV), case studies in this thesis demonstrate how the difference of 1.9 years (half-life) between thorium 228 [superscript] Ac and 232 [superscript] Th decay daughter products can be mapped through the interpretation of thorium energy using ternary imagery [red: 208 [superscript] Tl (1764 keV), green: 228 [superscript] Ac (900 keV), blue: 228 [superscript] Ac (1600 keV)]. Energy peak differences may be be linked to local variations in soil chemistry, soil movement, and water movement.Additionally, through the isolation of non-standard uranium channels 214 [superscript] Bi (1120 keV) and 214 [superscript] Bi (1253 keV), preferential attenuation of lower energy gamma-rays from 214 [superscript] Bi decay events are exploited to map variations in soil density and/or porosity. These variations are illustrated through the interpretation of uranium energy using ternary imagery [red: 214 [superscript] Bi (1764 keV), green: 214 [superscript] Bi (1120 keV), blue: 214 [superscript] Bi (1253 keV)] and uranium peak energy ratio [214 [superscript] Bi 1120 keV / 214 [superscript] Bi 1764 keV] pseudo colour imagery. Case studies examined in this thesis explore the characteristics of 256-channel radiometric spectrum from different resolution datasets from different Western Australian soil types, provide recommendations for acquiring radiometric data for soil mapping in different agricultural environments, demonstrate how high resolution 256-channel radiometric data can be used to model soil properties in three-dimensions, and illustrate how three-dimension soil models can be used to separate surface waterlogging influences from rising groundwater induced waterlogging

The Deceptive Dyad: How Falseness Structures International Law

Public International Law (PIL) is portrayed as an autonomous and tolerably just legal system. A determinable system of rules and principles, deployed by professionals to evaluate and constrain the global machinations of power politics. Law as an authoritative structure through which global justice can be pursued. This entrenches a comforting, but false, progress narrative; and obscures the limitations of pursuing progressive change through international law. PIL is structured by false necessity and false contingency. These interact to create the Deceptive Dyad, which disguises the radical indeterminacy of PIL. PIL’s purported demands, however meticulously crafted, do not effect change in the real world. Emancipatory change at the global level faces systemic obstructions. These obstructions, and the implausibility of PIL overcoming them, reveal a global normative architecture bifurcated between two competing systems: PIL and the Global Legal Order (GLO). The GLO, possesses coercive authority, and deploys it in a legal-rational manner. Characterised by its capacity to enforce its will and the widespread obedience this commands, it imposes a coherent set of policies in a consistent manner, producing identifiable legal norms. PIL mimics the rituals of law, but lacks the capacity to enforce its demands. The two systems function to define and correct “delinquents”, but they do so in incompatible ways. The GLO’s coercively imposed policy prescriptions immiserate populations, culminating in “human rights abuses”. The suppression of delinquency by the GLO produces delinquency in PIL. The two systems work in tandem, regulating and disguising our neocolonial present: producing and condemning human rights abuses

Harry Potter and the Gluttonous Machine

In this paper, I outline the colonial structure of international law, and examine the short decline or suppression of its coloniality in the so-called ‘era of decolonisation’, then illustrate its resurgence in the modern neo-colonial order. PIL has split into two separate systems. One includes, and is justified by, the heroic tales of human rights and ‘Humanity’s Law’. The other is the actualised system of International Economic Law (IEL), an order driven by the need of the over-developed states to plunder the under-developed states’ resources and labour, to subsidise the luxury to which we have grown accustomed. One purports to be noble and just, but is ostentatiously weak; the other is ignoble and exploitative, but quietly powerful. They work in tandem with one another; the first functions by appearing to fail, the second operates so quietly that its very functioning is overlooked — hidden behind the spectacular failure of its partner. These are usually analysed as PIL and IEL, respectively. I call them Harry Potter and the Gluttonous Machine

The social and human rights models of disability: towards a complementarity thesis

This article aims to reorient thinking about the relationship between the long-standing social model of disability and the rapidly emerging human rights model. In particular, it contests the influential view that the latter develops and improves upon the former (the improvement thesis) and argues instead that the two models are complementary (the complementarity thesis). The article begins with a discursive analysis of relevant documents to investigate how each of the two models has been used in the crafting and monitoring of the UN Convention on the Rights of Persons with Disabilities. This highlights the increasing importance of the human rights model in this policy context. It also provides examples of the operation of the two models which inform the remainder of the discussion. We then critique the comparisons between the models which underpin the improvement thesis; and, drawing on Foucault’s technologies of power and Beckett and Campbell’s ‘oppositional device’ methodology, deepen and develop this comparative analysis. The result, we argue, is that the two models have different subjects and different functions. In the human rights context, their roles are complementary and supportive

The end of customary international law? : A purposive analysis of structural indeterminacy

Where CLS, and other critical discourses, seek to “uncover” and “explode” the ideologies and biases of law, to demonstrate its inability to fulfil its promises, the present work is intended to initiate the task of demanding that law, and especially CIL, live up to those very promises. But first, the nature of these promises, and the structure and purpose of law must be examined, analysed, and where necessary contested and decided, or rather, defined. In this regard, the hidden assumptions of legal theory must be uncovered and problematised; the debates over law must be disaggregated, before law itself can be properly determined. Only after these tasks have been completed can the nihilist challenges of NAIL be met. This thesis argues that CIL is best understood as an independent system of rules, against which state conduct may be assessed; rather than as a necessarily authoritative institutional reality. This highlights the distinction between law-creative, and merely legally evaluable, state actions. The theory presented in the final chapter - which is developed from the methodology outlined in the preceding four chapters - acts as a lens through which those actions of states which alter or develop CIL may be distinguished from those actions which ought, merely, to be judged in the light of CIL. This allows us to distinguish legal from illegal state conduct, regardless of the absence or presence of enforcement. This distinction between the legal and the illegal is distinct from, analytically prior to, and more important than, the enforcement of legal commands

Microwaving Dreams? Why There is No Point in Reheating the Hart-Dworkin Debate for International Law

A critique of attempts to transpose Hart and Dworkin\u27s legal theories to international law. I demonstrate why neither approach can provide insights into international law. Hart and Dworkin are institutional theorists, their methodologies are anchored by the need to justify the exercise of socially centralised violence. International law lacks both institutions and centralised violence, and the stabilising force these bring; it is radically indeterminate. Attempts to suppress this indeterminacy have resulted in international lawyers fragmenting into communities of practice, united by their eschatological faith in the international community. I challenge this faith.https://fount.aucegypt.edu/faculty_book_chapters/2220/thumbnail.jp

My Home Must Be Where\u27er Thou Art

\u27Tis more than vain to bid me seek,In other lands a peaceful home;\u27Tis easy such light words to speak,But hearts there are that cannot roam.Mountain and vale might loveliest be,But doom\u27d from thee to live apartHow lonely all would seem to me,My home must be where\u27er thou art.How lonely all wold seem to meMy home must be where\u27er thou art. 2d verseMy love finds no response from thine,Some happier one will share thy lot;But whilst remembrance still is mine,Some joy remains thou unforgot.Our spirits in my dreams will meet,Like kindred streams too long apartSo in my visions false yet sweet,Thou wilt be mine where\u27er thou art.So in my visions false yet sweetThou wilt be mine where\u27er thou art