A study of the offshore petroleum negotiations between Australia, the U.N. and East Timor

In this thesis I investigate the process of international negotiation to resolve a serious dispute between Australia and East Timor over offshore oil and gas, which arose after East Timor’s transition to independence in 1999. The central aim is to uncover and analyse the dynamics of the negotiations, and to explain how outcomes were determined. The question of negotiated outcomes is of special significance given the extent to which East Timor was able to move Australia beyond its preferred outcome. In this case, the seemingly weaker party was able to overcome a more powerful bargaining opponent. My aim in writing this thesis is to explain why that was possible and how it was achieved

Visual indeterminacy and the puzzle of the speckled hen

I identify three aspects to the puzzle of the speckled hen: a general puzzle, an epistemic puzzle, and a puzzle for the representationalist. These puzzles rely on an underlying ‘pictorialist’ assumption, that we visually perceive general, determinable properties only in virtue of determinate properties or more specific, local features of our visual experience. This assumption is mistaken: visual perception starts from a position of uncertainty, and is routinely able to acquire information about general properties in the absence of more specific information. Acknowledging that visual indeterminacy is structured this way resolves all three puzzles of the speckled hen

Getting tough with the dragon? The comparative correlates of foreign policy attitudes toward China in the United States and UK

A large body of research suggests mass publics are capable of thinking coherently about international relations. We extend this body of research to show that domain relevant postures – in our case, more abstract beliefs about foreign policy – are related to how tough of a line representative samples of US and UK respondents want their governments to take toward China. More specifically, we utilize a unique comparative survey of American and British foreign policy attitudes to show broad support for toughness toward China. Beliefs about the use of the military and attitudes regarding globalization help explain preferences for tough economic and military policies toward China. In the two countries, the relationship between general foreign policy outlooks and the positions citizens take is robust to the addition of a general mediator that controls for the general affect those surveyed have toward China. Finally, the strength of the relationship between these abstract postures and specific preferences for a China policy are different across the countries

Research on the Geography of Agricultural Change: Redundant or Revitalized?

Future research directions for agricultural geography were the subject of debate in Area in the late 1980s. The subsequent application of political economy ideas undoubtedly revived interest in agricultural research. This paper argues that agricultural geography contains greater diversity than the dominant political economy discourse would suggest. It reviews ‘other’ areas of agricultural research on policy, post-productivism, people, culture and animals, presenting future suggestions for research. They should ensure that agricultural research continues revitalized rather than redundant into the next millennium

A Mathematical model for Astrocytes mediated LTP at Single Hippocampal Synapses

Many contemporary studies have shown that astrocytes play a significant role in modulating both short and long form of synaptic plasticity. There are very few experimental models which elucidate the role of astrocyte over Long-term Potentiation (LTP). Recently, Perea & Araque (2007) demonstrated a role of astrocytes in induction of LTP at single hippocampal synapses. They suggested a purely pre-synaptic basis for induction of this N-methyl-D- Aspartate (NMDA) Receptor-independent LTP. Also, the mechanisms underlying this pre-synaptic induction were not investigated. Here, in this article, we propose a mathematical model for astrocyte modulated LTP which successfully emulates the experimental findings of Perea & Araque (2007). Our study suggests the role of retrograde messengers, possibly Nitric Oxide (NO), for this pre-synaptically modulated LTP.Comment: 51 pages, 15 figures, Journal of Computational Neuroscience (to appear

An evaluation of sit to stand devices for use in rehabilitation

There are many assistive devices to help with raising a person from a seat. These devices are considered active as they require some balance, trunk control and weightbearing ability. There is concern that this movement is mostly passive due to fixation at the trunk and knee. This study explores the movement patterns in sit to stand transfers active and assisted. Study Design: A fully squared repeated measures design was use. All participants (n = 20) used all conditions (n = 7) in a balanced order. Transfers were recorded with; video recordings, a 6 dimensional force plate, hip, knee and ankle positions were recorded with motion capture. Subjective evaluations for comfort and security were completed. Physical data was compared with ANOVA calculations with Bonferroni corrections. Results: Device G scored highest for comfort, knee support and overall preference. Sling movement had a negative effect on the sensations of comfort and security. The motion analysis of the flexible knee support showed: People push into the floor and CoP moved towards the toe.More anterior knee movement (P < 0.05).More bodyweight through feet (P < 0.05).Quicker transfer of weight onto feet.Very low bodyweight was recorded in all lowering actions. The use of a flexible knee support raised the subjective and physical performance of the assistive device and may improve rehabilitation responses

Hyper-arid tall shrub species have differing long-term responses to browsing management

© 2019, © 2019 Taylor & Francis Group, LLC. Hyper-arid rangeland vegetation is typically dominated by large woody species which are often overlooked in herbivory studies. Long-term responses of tall shrub populations to herbivory change are poorly understood in the Arabian Peninsula. Population and size of 1559 individuals from four shrub species were assessed over an 11-year period under two herbivory regimes, one in which domestic livestock (camels) were replaced by semi-wild ungulates (Oryx and gazelles) before, and the other during, the study period. Each shrub species exhibited a different response to the change in herbivory. Populations of Calotropis procera decreased dramatically. Populations of both Calligonum polygonoides and Lycium shawii increased through sexual reproduction, but the spatial distribution of recruits indicated different modes of seed dispersal. Average lifespans were estimated at 22 and 20years respectively. The persistence strategy of Leptadenia pyrotechnica was similar to tree species of this habitat in that vegetative regrowth was prioritized over recruitment, and average lifespan was estimated at 95years. Shrub responses to changes in ungulate management are therefore species-specific. The response of individual plant size was faster than the response of population size, which was limited by slow sexual recruitment (L. pyrotechnica) or localized seed dispersal (C. polygonoides)