VictorJuiz/thesis huggingface dataset:
Judicial Responses to the Indefinite Detention of Non-citizens Subject to Removal Orders: A Comparative Study of Australia, the United Kingdom and Canada

In the period 2004-2007, the highest courts of Australia, the United Kingdom and Canada handed down judgments on the legality of the indefinite detention of non-citizens, specifically non-citizens subject to a removal order whose removal was frustrated. Each of the governments claimed that its intention to remove the non-citizens if and when it became viable to do so sufficed to establish that their detention fell within an ‘immigration’ exception to non-citizens’ rights. The cases thus raised fundamental questions about the relationship between non-citizens’ rights and governments’ power to control national borders. I argue that the indefinite detention of a non-citizen subject to a removal order is illegal. The detention of a non-citizen subject to a removal order is lawful if it can be justified as a proportionate measure to effect his or her removal. Indefinite detention fails this proportionality test and as such is an unlawful violation of a non-citizen’s rights. I develop my argument through case studies from the three jurisdictions. I argue that the law of all three jurisdictions contained ample resources to support a ruling that indefinite detention was unlawful. The question then arises as to why this view did not prevail in every jurisdiction. I demonstrate that, taking into account variations in legal frameworks and doctrines, a judge’s response to indefinite detention is at base determined by his or her answer to the question ‘does a non-citizen, against whom a valid removal order has been made, retain a right to liberty?’ The judge’s answer to this question flows through his or her adjudication on the scope of ‘immigration’ exceptions to legal protections of the personal liberty of non-citizens considered in the case studies. I consider the best justification for the view that a removal order revokes a non-citizen’s right to liberty, provided by John Finnis. I argue that it rests on questionable understandings of citizenship, and in operation inevitably undermines the values of community solidarity it seeks to promote.

Keywords: comparative law
immigration law
national security law
citizenship
public law
Advisor: Dyzenhaus, David
The Microcanonical Density of States and Causal Dynamical Triangulations

Brown and York's gravitational microcanonical density of states is extended to general spacetime dimension and shown to be dependent upon features of the 4 dimensional gravitational action for its interpretation. Black hole entropy is calculated from the density of states path integral in general spacetime dimension, and the interpretation is shown to be likewise dependent upon the dimension of spacetime. The entropy of de Sitter and Rindler horizons are calculated using the black hole density of states and the notion of local horizon entropy density is shown to be supported. The applicability of the microcanonical ensemble to black hole mechanics is discussed at a fundamental level focussing on the absence of angular velocity as an external parameter in the gravitational Hamiltonian. The rotational ensemble and a new ensemble - the angular momentum ensemble - are introduced following Jaynes' information theory approach to statistical mechanics and proposed as more compelling candidates to calculate black hole entropy as a function of state. A program to calculate the density of states path integral non-perturbatively using causal dynamical triangulations is initiated. Regge calculus expressions for extrinsic curvature are extended to the case of Lorentzian hypersurfaces and used to derive Regge calculus expressions for quasilocal energy-momentum. The Regge version of the black hole density of states action is derived and specialised to the 3d and 4d spacetime constructions of causal dynamical triangulations. Finally, the recent suggestion that entropy is observer dependent is shown to be incompatible with the Tolman law for the equilibrium temperature in a gravitational field.

Keywords: General Relativity
Quantum Gravity
Advisor: Dyer, Charles C.
Augustine on Suffering and Order: Punishment in Context

Augustine of Hippo argues that all suffering is the result of the punishment of sin. Misinterpretations of his meaning are common since isolated statements taken from his works do give misleading and contradictory impressions. This dissertation assembles a comprehensive account of Augustine’s understanding of the causes of suffering to show that these views are substantive and internally consistent. The argument of the dissertation proceeds by confronting and resolving the apparent problems with Augustine’s views on sin and punishment from within the broader framework of his anthropology and metaphysics. The chief difficulty is that Augustine gives two apparently irreconcilable accounts of suffering as punishment. In the first, suffering is viewed as self-inflicted because sin is inherently self-damaging. In the second, God inflicts suffering in response to sin. This dissertation argues that these views are united by Augustine’s concern with the theme of ‘order.’ The first account, it argues, is actually an expression of Augustine’s doctrine that evil is the privation of good; since good is for Augustine synonymous with order, we can then see why he views all affliction as the concrete experience of disorder brought about by sin. This context in turn allows us to see that, by invoking the notion of divinely inflicted punishment in both its retributive and remedial forms, Augustine wants to show that disorder itself is embraced by order, either because disorder itself must obey laws, or because what is disordered can be reordered. In either case, Augustine’s ideas of punishment may be seen as an expression of his conviction that order in the universe is unassailable. It is hoped that these observations contribute to a greater appreciation not only of Augustine’s theory of punishment, but also of the extent to which the theme of order is fundamental to his thought.

Keywords: suffering
evil
punishment
order
Augustine
privation
privatio
ordo
sin
Advisor: Inwood, Brad
Rist, John
Materials Engineering for Stable and Efficient PbS Colloidal Quantum Dot Photovoltaics

Environmental and economic factors demand radical advances in solar cell technologies. Organic and polymer photovoltaics emerged in the 1990's that have led to low cost per unit area, enabled in significant part by the convenient manufacturing of roll-to-roll-processible solution-cast semiconductors. Colloidal quantum dot solar cells dramatically increase the potential for solar conversion efficiency relative to organics by enabling optimal matching of a photovoltaic device's bandgap to the sun's spectrum. Infrared-absorbing colloidal quantum dot solar cells were first reported in 2005. At the outset of this study in 2007, they had been advanced to the point of achieving 1.8% solar power conversion efficiency. These devices degraded completely within a few hours’ air exposure. The origin of the extremely poor device stability was unknown and unstudied. The efficiency of these devices was speculated to be limited by poor carrier transport and passivation within the quantum dot solid, and by the limitations of the Schottky device architecture. This study sought to tackle three principal challenges facing colloidal quantum dot photovoltaics: stability; understanding; and performance. In the first part of this work, we report the first air-stable infrared colloidal quantum dot photovoltaics. Our devices have a solar power conversion efficiency of 2.1%. These devices, unencapsulated and operating in an air atmosphere, retain 90% of their original performance following 3 days’ continuous solar harvesting. The remarkable improvement in device stability originated from two new insights. First, we showed that inserting a thin LiF layer between PbS film and Al electrode blocks detrimental interfacial reactions. Second, we proposed and validated a model that explains why quantum dots having cation-rich surfaces afford dramatically improved air stability within the quantum dot solid. The success of the cation-enrichment strategy led us to a new concept: what if - rather than rely on organic ligands, as all prior quantum dot photovoltaics work had done - one could instead terminate the surface of quantum dots exclusively using inorganic materials? We termed our new materials strategy ionic passivation. The goal of the approach was to bring our nanoparticles into the closest possible contact while still maintaining quantum confinement; and at the same time achieving a maximum of passivation of the nanoparticles' surfaces. We showcase our ionic passivation strategy by building a photovoltaic device that achieves 5.8% solar power conversion efficiency. This is the highest-ever solar power conversion efficiency reported in a colloidal quantum dot device. More generally, our ionic passivation strategy breaks the past tradeoff between transport and passivation in quantum dot solids. The advance is relevant to electroluminescent and photodetection devices as well as to the record-performing photovoltaic devices reported herein.

Keywords: photovoltaics
lead sulfide
ionic passivation
nanocrystal
quantum dot
stability
Advisor: Sargent, Edward H.
The Role of Telomerase Reverse Transcriptase in Tumorigenisis

The acquisition and maintenance of cell division potential are important characteristics of tumorigenesis. Human telomerase reverse transcriptase (TERT) and telomerase RNA (TR) can immortalize cells through telomere maintenance, and telomerase activity is one factor that contributes to the in vitro transformation of normal cells. In vitro and in vivo evidence suggest that telomerase maintains telomeres as a functional multimer. In addition, hTERT may possess telomere maintenance-independent functions. To examine the effects of hTERT loss upon an in vitro generated tumorigenic cell line we created a tumorigenic cell line from human embryonic kidney cells through expression of the SV40 early region, H-RasG12V and a Cre-mediated excisable hTERT. These immortalized cells exhibited robust anchorage-independent colony growth and tumor formation in immuno-deficient mice. Cre recombinase expression resulted in the excision of hTERT from the tumorigenic cell lines, restoring cell mortality. A return to immortality was conferred by the re-introduction of wild-type hTERT, but not with hTERT point mutations in the N-terminus (hTEN) and reverse transcriptase (RT) domains that impair in vitro telomere elongation activity. The onset of cell mortality was not immediate, and the hTERT-excised tumorigenic cells exhibited clonal variation in the anchorage-independent colony growth assay and upon tumor formation in immuno-deficient mice. We hypothesized that tumorigenic potential was not related strictly to hTERT presence, but rather telomere length and/or integrity. To investigate this possibility we maintained the tumorigenic cell lines in the continuous presence of hTERT to permit telomere elongation prior to hTERT excision; subsequently, after hTERT excision tumor formation persisted, thus demonstrating a dependence on telomere length and not hTERT presence per se. To investigate the functional multimerization of hTERT in vivo we tested if two defective hTERT polypeptides with mutations in the hTEN and RT domains could restore telomere elongation activity in vivo. Unfortunately, during the course of these experiments an unanticipated recombination event occurred that restored a catalytically active hTERT transgene. Further in vivo analysis of hTERT multimerization should be carefully designed, accounting for the selective survival advantage bestowed by wild-type hTERT. This study provides compelling evidence that hTERT does not possess telomere maintenance-independent functions.

Keywords: Telomerase
Telomeres
Tumorigenesis
Transformation
hTERT
Cre
Advisor: Harrington, Lea
Essays in Empirical Development Economics

This thesis consists of three empirical chapters that examine issues in development economics. Chapter 1 focuses on the effects of civil wars on the welfare of individuals. I use a unique data set that contains information on war casualties of the 1992-1995 Bosnian War, and exploit the variation in war intensity and birth cohorts of children, to identify the effects of the war on schooling attainment. I find that cohorts affected by war are less likely to complete secondary schooling, if they resided in municipalities that endured higher levels of war intensity. Ancillary evidence suggests that my estimates are most likely picking up immediate, rather than long-term effects. Furthermore, direct mechanisms such as the destruction of infrastructure and the out-migration of teachers do not seem to matter; instead, the ancillary evidence suggests that youth soldiering may be more important. Chapter 2 studies the impact of the partition which ended the Bosnian War on the post-war provision of public goods at the municipality-level. Comparing trends in the provision of public schooling across partitioned and unpartitioned municipalities during the 1986-2006 period, I find that partitioned municipalities provide 58 percent more primary schools and 37 percent more teachers (per capita). I also find evidence which suggests that convergent preferences - operating via ethnic politics - for ethnically oriented schools may be an important driver of the results, although I cannot rule out the possibility of mechanical explanations. In addition, as the increase in public goods provision may be ethnically oriented, only the ethnic majority profits from this arrangement. Chapter 3 provides an estimation of network effects among rural-urban migrants from Nang Rong, Thailand, by using heterogeneous migration responses to regional rainfall shocks among villagers as exogenous variation affecting network size. I find that social networks significantly reduce the duration of job search, and surprisingly, draw new migrants into the agricultural sector. I argue that this is not because agricultural jobs are more attractive than non-agricultural ones, but rather that my estimates are essentially local average treatment effects that are estimated off agricultural workers who are most affected by rainfall shocks.

Keywords: development economics
economic development
education
civil wars
partition
Bosnia
social networks
migration
Advisor: Benjamin, Dwayne
Capitalist Transformation and the Evolution of Civil Society in a South Indian Fishery

This thesis employs Karl Polanyi’s concept of the double-movement of capitalism to trace the trajectory of a social movement that arose in response to capitalist transformation in the fishery of Kanyakumari district, south India. Beginning in the 1980s, this counter-movement militantly asserted community control over marine resources, arguing that intensified production for new markets should be subordinated to the social imperatives of subsistence and equity. Two decades later, the ambition of “embedding” the market within the community had yielded instead to an adaptation to the market in the language of “professionalization,” self-help, and caste uplift. Polanyi is useful for identifying the constituency for a counter-movement against the market, but tells us little about the social or political complexities of constructing such a movement. To locate the reasons for the decline of the counter-movement in Kanyakumari, I turn therefore to an empirical observation of the civil society within which the counter-movement arose. In doing this, I argue against Partha Chatterjee’s influential view that civil society as a conceptual category does not apply to “popular politics in most of the world,” and is not useful for tracing non-European, post-colonial, and subaltern modernities. By contrast, my case shows the presence of civil society – as a sphere of autonomous and routinized association and publicity – among subaltern groups in rural India. I argue that it is precisely by locating the counter-movement of fishworkers within civil society that one can map the multiple negotiations that take place as subaltern classes are integrated into the market, and into liberal democracy, and explain the difficulties of extending and sustaining the counter-movement itself.

Keywords: social movements
counter-movement
civil society
Polanyi
fisheries
capitalism
Advisor: Barker, Jonathan
Considering Mobile Devices, Context Awareness, and Mobile Users

Recent years have seen rapid growth and adoption of powerful mobile devices such as smartphones, equipped with sophisticated input and display systems, and multiple communication technologies. This trend has coincided with the rapid deployment and adoption of high-speed Internet services and web-based applications. While this rapid development of mobile technology has provided great opportunities, it also presents significant new challenges compared to traditional desktop computing. Specifically, unlike the traditional desktop computing experience where users are stationary and physically isolated, users in mobile and social settings can be faced with real time demands for their attention. This thesis examines the relationship between mobile devices, context awareness, and mobile users. We propose the use of physical proximity context to adapt and improve system behavior, and enable mobile users to more effectively access and share content in non-desktop settings. This work identifies three distinct challenges in mobile software, and addresses these challenges using physical proximity context awareness. First we address improvements to mobile node network utilization by using proximity awareness to automatically manage local radio resources. Next we address improvements to mobile web-backed applications and services by enabling social proximity awareness. Finally, we enable greater mobility and physical awareness for visually impaired users on mobile devices by providing an interface which enables exploration of spatial geometric layouts.

Keywords: mobile
context
adaptation
Advisor: Lara, Eyal de
Goel, Ashvin
Dynamics Underlying Interacting Mechanisms of Sexual Selection

Sexual selection drives the evolution of male morphology, life history, physiology, and behaviour across taxa. Here I examine the mechanisms of sexual selection that arise at various stages in mating interactions to identify congruence or conflict between the traits selected by choice and competition. I first examine plasticity of developing male Australian redback spiders (Latrodectus hasselti) and show that male metabolic rates vary adaptively to facilitate the scramble to reach virgins. Next, I show that females cease sex pheromone production after mating and re-advertise receptivity later in their reproductive season effectively creating two windows in which males may compete. I show that females discriminate against males that do not meet a threshold courtship duration suggesting that courtship is the trait selected through choice. However, male-male competition leads to reductions in courtship effort provided to females. During the first window paternity is split equally if rival males mate in quick succession with a virgin female. However, if the second mating is delayed, there is a strong bias in the paternity of the second male. A delay in the second mating is beneficial to females as it reduces longevity costs of polyandry. However, delays in the initial mating decrease female longevity, likely because of elevated metabolic rates of virgins. My research shows that the trait favoured by female choice is in opposition to selection via male-male competition. Females’ sex pheromone production yields windows during which mating will optimize female, but not male, fitness. Studies that isolate the mechanisms of sexual selection are valuable in that they can identify the traits under selection. However, my research shows that considering these processes in isolation can lead to incorrect inferences about the net effect of sexual selection.

Keywords: sexual selection
male-male competition
female choice
redback spider
Advisor: Andrade, Maydianne
Mouse Medial-prefrontal Cortex Involvement in Trace Fear Memory during Wakefulness and Sleep

This thesis represents a culmination of work which seeks to examine the prelimbic and anterior cingulate cortex (ACC) during trace fear memory across sleep and wakefulness states. In order to accomplish this task, a technical platform needed to be developed. Accordingly, the first chapter demonstrates that fear behavior can recorded utilizing neck electromyography (EMG). The second chapter examines the role of the ACC in trace fear memory, discovering that many neurons have premotor activity related to freezing behavior. Additionally, auditory-evoked potentials in the ACC demonstrate learning curves which match learning curves of fear. We suggest that the ACC is involved in affective-motor integration. The third chapter examines how genetic enhancement of trace fear learning, with calcium/calmodulin-dependent protein kinase IV (CaMKIV) over-expressed mice, can influence electro-cortical potentials during wakefulness, learning and sleep. We found that CaMKIV potentiates electro-cortical brain waves during learning and sleep. In particular 4-7.5Hz rhythms were potentiated in CaMKIV over-expressed mice during learning, and are likely to be localized to regions of the prelimbic cortex. Taken together the results of this thesis demonstrate that the trace fear memory paradigm engages the ACC and prelimbic regions, as evidenced at the single cell and cortical field potential level, for sensory-affective and premotor functions related to anticipating painful stimulation. CaMKIV appears to be a protein which modulates learning and electro-cortical potentials and may be a potential target for sleep-dependent memory consolidation in the prefrontal cortex.

Keywords: Prefrontal
Trace fear
Advisor: Zhuo, Min
Ramsey Property of Posets and Related Structures

We study several classes of finite posets equipped with linear orderings. We examine these classes according to the Ramsey and the ordering property. As an application we give several new extremely amenable groups of automorphisms of countable structures and compute several new universal minimal flows for such groups. The technique that we develop is also useful for studying classes of structures related to posets, such as quasi-orderings.

Keywords: posets
Ramsey property
Advisor: Todorcevic, Stevo