Alley Greening: A Tool for Enhancing Community Resilience?

In many cities across the world alleys are transitioning from residual spaces to hybrid places providing the foundation for new functions, uses, and identities to take root and coincide through a process of “alley greening”. Such manifestations are transforming the relationship between people (local residents) and place (alleyway–local area), most notably during the COVID-19 pandemic when a new urgency for the provision, or repurposing, of safe, social spaces emerged. Yet, the potential of alley greening to affect people-place relationships and engender community resilience has been relatively unexplored. Adopting a mixed-methods approach, including questionnaires, interviews, and case study analyses, this paper critically investigates the experience and perspectives of green alleys from various place-based actors in Belfast, Northern Ireland. The findings reveal that, even in the absence of institutional and policy support, green alley projects have the potential to stimulate positive people-place relationships in various ways and enhance wider community resilience to shocks and stresses. However, barriers prevail, curtailing the reach and purpose of such projects both in Belfast and elsewhere. The paper considers how governance arrangements might best overcome such hurdles and strengthen pro-environmental and pro-social behaviours that are fundamental to community resilience. Key policy highlights Despite their integral form and function in the city, alleyways, nor their potential, are rarely recognised in the policy. The COVID-19 pandemic exposed a policy-implementation gap in the provision of locally accessible greenspace. Policy inertia exacerbated this gap preventing the fulfilment of changing community needs. Alley greening emerged as a tactical urban response. A lack of place-based approaches within policy has polarised institutions from communities. People-place relationships, essential to resilience-building and green alley longevity, are subsequently inadequately engaged with and fostered. An opportunity exists for alley greening to be a place-based policy instrument to stimulate pro-social and pro-environmental behaviours for building community resilience.</p

Combining social network analysis and the NATO Approach Space to define agility. Topic 2: networks and networking

This paper takes the NATO SAS-050 Approach Space, a widely accepted model of command and control, and gives each of its primary axes a quantitative measure using social network analysis. This means that the actual point in the approach space adopted by real-life command and control organizations can be plotted along with the way in which that point varies over time and function. Part 1 of the paper presents the rationale behind this innovation and how it was subject to verification using theoretical data. Part 2 shows how the enhanced approach space was put to use in the context of a large scale military command post exercise. Agility is represented by the number of distinct areas in the approach space that the organization was able to occupy and there was a marked disparity between where the organization thought it should be and where it actually was, furthermore, agility varied across function. The humans in this particular scenario bestowed upon the organization the levels of agility that were observed, thus the findings are properly considered from a socio-technical perspective

Toxicity Risks to Resident Small Mammals Inhabiting Former Land-treatment Facilities for Petrochemical Wastes

Environmental contamination is a persistent problem throughout the world. Scientists, land managers, and public concerns over past and current practices of waste disposal has lead to a search for valid methods to evaluate the effects of pollution on human and ecological health. Small mammals as resident biomonitors of environmental contamination have potential to be a good measure of ecological health. To this end, we evaluated the immune response and other physiological parameters of cotton rats (Sigmodon hispidus) living on landtreated petroleum waste sites to determine risks of exposure. This thesis includes three manuscripts formatted for submission to Environmental Pollution (Chapter 1), Archives of Environmental Contamination and Toxicolgy (Chapter II), and Journal of Wildlife Diseases (Chapter Ill). The manuscripts are complete as written and need no supporting material.Wildlife and Fisheries Ecolog

Constitutionalism in international law : the limits of Jus Cogens

This dissertation explores the place that jus cogens occupies in contemporary international legal thought and practice. More specifically it looks at the place that the concept occupies within the discourse surrounding constitutionalism in international law. The question is asked whether it is viable to posit a specific constitutional structure for international law and whether such structure can be legitimized by the existence of certain values that are held in common by the international community. Both structural and value-based approaches posit a place for norms of jus cogens as possibly being seen as constitutional norms to some extent. Jus cogens as a now widely accepted concept in international law, continues to be the subject of much contemporary debate. The nature and function of the concept as proposed by various authors is looked at and the problematic aspects set out. Although there is a large amount of literature acknowledging the existence and importance of jus cogens, this has not been supported by international judicial practice. It seems that it is the practical difficulties surrounding the functioning of normative hierarchy that is the main reason for this. Chapter 1 introduces the approaches to the constitutionalism debate that have posited a legitimate place for norms of jus cogens. It also provides an introduction to the concept of jus cogens within contemporary international law. Chapter 2 starts out by defining certain concepts involved in the discourse surrounding constitutionalism. The strands of thought involved in the constitutionalism debate are then set out in order to provide the context for the placements of jus cogens posited by various authors. Chapter 3 looks at the evolution of the concept of jus cogens and the limited practical effect that has been given to the concept in international judicial practice. The main consideration here is the perceived inapplicability of jus cogens within cases concerning jurisdictional immunity. It therefore seems that jus cogens is, in general, limited to application against rules directly contradicting the substance of the jus cogens norm. Chapter 4 provides a critique of normative hierarchy theory, which is a main aspect dealt with in much constitutionalist thought. The chapter shows how the proposed functionality of normative hierarchy theory is unconvincing as only negative prohibitions can function as jus cogens under this construction. This further limits the instances where jus cogens can be seen as effective under constitutional thought. Chapter 5 concludes that under a strict conception of normative hierarchy, jus cogens is unlikely to receive much practical legal effect. This is due to the inapplicability of jus cogens in procedural matters and the limited number of norms that can function as jus cogens under normative hierarchy.Dissertation (LLM)--University of Pretoria, 2012.Public Lawunrestricte

FPGA-Based Processor Acceleration for Image Processing Applications

FPGA-based embedded image processing systems offer considerable computing resources but present programming challenges when compared to software systems. The paper describes an approach based on an FPGA-based soft processor called Image Processing Processor (IPPro) which can operate up to 337 MHz on a high-end Xilinx FPGA family and gives details of the dataflow-based programming environment. The approach is demonstrated for a k-means clustering operation and a traffic sign recognition application, both of which have been prototyped on an Avnet Zedboard that has Xilinx Zynq-7000 system-on-chip (SoC). A number of parallel dataflow mapping options were explored giving a speed-up of 8 times for the k-means clustering using 16 IPPro cores, and a speed-up of 9.6 times for the morphology filter operation of the traffic sign recognition using 16 IPPro cores compared to their equivalent ARM-based software implementations. We show that for k-means clustering, the 16 IPPro cores implementation is 57, 28 and 1.7 times more power efficient (fps/W) than ARM Cortex-A7 CPU, nVIDIA GeForce GTX980 GPU and ARM Mali-T628 embedded GPU respectively

Gender differences in structural and attitudinal barriers to mental healthcare in UK Armed Forces personnel and veterans with self-reported mental health problems

Purpose: Structural and attitudinal barriers often hinder treatment-seeking for mental health problems among members of the Armed Forces. However, little is known about potential gender differences in structural and attitudinal barriers among members of the UK Armed Forces. The current study aimed to explore how men and women differ in terms of these barriers to care among a sample of UK Armed Forces personnel and veterans with self-reported mental health problems. Methods: Currently serving and ex-serving members of the UK Armed Forces who self-reported a mental health problem were invited to participate in a semi-structured phone interview on mental health and treatment-seeking. The final sample included 1448 participants (1229 men and 219 women). All participants reported on their current mental health, public stigma, self-stigma, and barriers to mental healthcare. Results: Overall, men and women reported similar levels of both structural and attitudinal barriers, with no significant differences detected. The highest scores for both men and women were observed in attitudinal barriers relating to self-stigma domains, which encapsulate internalised attitudes and beliefs about mental illness and treatment. Conclusions: Findings suggest that anti-stigma campaigns can be targeted simultaneously at both men and women within the Armed Forces. In particular, targeting self-stigma may be beneficial for health promotion campaigns

Progressive Resistance Exercise and Parkinson's Disease: A Review of Potential Mechanisms

This paper reviews the therapeutically beneficial effects of progressive resistance exercise (PRE) on Parkinson's disease (PD). First, this paper discusses the rationale for PRE in PD. Within the first section, the review discusses the central mechanisms that underlie bradykinesia and muscle weakness, highlights findings related to the central changes that accompany PRE in healthy individuals, and extends these findings to individuals with PD. It then illustrates the hypothesized positive effects of PRE on nigro-striatal-thalamo-cortical activation and connectivity. Second, it reviews recent findings of the use of PRE in individuals with PD. Finally, knowledge gaps of using PRE on individuals with PD are discussed along with suggestions for future research