VictorJuiz/thesis huggingface dataset:
Human will and divine will in Roman divination
Keywords: prodigies
augury

This thesis examines the relationship between human will and divine will as mediated through state divination in the Roman Middle and Late Republic. The nature of ancient evidence for incidents involving state divination, and for divinatory ‘rules’, is scrutinized: the historicity of many divinatory incidents recorded in Roman tradition is defended, and the existence of a body of basic divinatory ‘rules’ posited. Current models of the relationship between human and divine will in Roman divination are examined; the thesis challenges the ‘alignment’ model wherein the outcomes of state divination are assumed routinely to have aligned with the will of their recipients. Cases where divinatory outcomes do not appear to have aligned with recipients’ will are identified in Cicero, Livy, and Cassius Dio. The modern view that state divinatory techniques (auspication, haruspicy in sacrifice, and prodigy-interpretation) routinely generated desired results is called into question. The thesis then re-evaluates the canon of ancient ‘rule-statements’ generally cited as evidence for augural ‘principles’ that the report of a sign was considered as valid as an actual sign, and that it was acceptable for individuals to fabricate or to reject signs at will. Instead, it is suggested that a real sign was preferable to a reported one, and that the validity of an oblative sign depended on the individual’s awareness of it. Finally, the thesis proposes an alternative to the currently-accepted understanding of the auspicial procedure ‘servare de caelo’, arguing that even this procedure need not be seen as invariably generating signs in alignment with human will and as countenancing sign-falsification. These conclusions are held to encourage a re-consideration of the modern understanding of the nature of Roman state divination and of Roman religion.
'The Arada have been eaten': living through marginality in Addis Ababa's inner city
Keywords: Ethiopia
gangs
Addis Ababa
politics
marginality
youth

This thesis examines marginality as a regime of interconnectedness. Drawing on the ethnographic material from a 16-month-fieldwork between October 2009 and December 2010 on the street economy and streetlife in Arada, the old city centre of Addis Ababa’s inner city, I argue that marginalized subjects are not to be seen as social actors that inhabit and create alternative and parallel social, political and economic realities away from the mainstream society. Rather, the way the urban poor are connected and integrated in the broader political economy of the Ethiopian urban society frames and defines modalities, forms and experiences of marginality. From this perspective, this thesis focuses on the on-going reconfiguration of the street economy in Addis Ababa’s inner city. Since the early 2000s, the increasing concern with poverty reduction and good governance in the development agenda has concurred with the attempts of the ruling party to expand its machinery of political control and mobilization at the grassroots of urban society. In this context, under the impact of development programs promoting the establishment of small-scale enterprises, the street economy has undergone a pervasive process of formalization and politicization that has come to advance the realization of an authoritarian form of developmental state, while imposing a regime of unskilled and badly paid labour on the street. This thesis examines this process by looking at the history of streetlife in Arada, as a terrain of social, economic and political practice, and it recounts the everyday life and life trajectories of those involved in the street economy. In particular, I look at how the political reconfiguration of the street economy has come to intertwine with the way living through marginality and dealing with forms of social inequality on the street have been historically conceptualized and experienced in Addis Ababa’s inner city.
Regulation of the pharmaceutical market in the South Korean National Health Insurance
Keywords: pharmaceutical market
policy instruments
regulation
health care providers
national health insurance
agenda-setting
democratisation

This thesis explores the implications of democratisation on the regulation of health care providers. It examines the reforms in relation to two regulatory policies in the pharmaceutical market of the National Health Insurance (NHI) in South Korea – the separation of prescribing and dispensing (SPD) and the pharmaceutical pricing policy – conducted in two periods – the 1980s under the authoritarian regime and the 1990s under the democratised regime. The misuse and overuse of drugs had long been recognised as a problem for the NHI, and the tight regulation of the SPD and pharmaceutical pricing as potential solutions.
Democratisation seems unlikely to tighten the government’s regulation of the SPD and pharmaceutical prices. On the one hand, the Korean authoritarian regime was known as being capable of conducting top-down regulation of societal groups, and democratisation as having liberalised the government-society relationship. On the other, pharmaceutical regulation is a sophisticated and detached issue, which restricts the ability of laypeople to mobilise and exert bottom-up pressure for regulation. Nevertheless, the authoritarian government failed to tighten, and even loosened these regulations, whereas the democratised government tightened them.
This thesis explains this puzzle by focusing on the features of the agenda-setting process and the articulation of policy issues therein. In the 1980s, the SPD and the pharmaceutical reimbursement pricing policy were administrative issues, discussed exclusively between bureaucrats and the central associations of health care providers, which resulted in loose regulation. In contrast, in the 1990s, reform-oriented professionals and NGOs raised these issues and put them on the political agenda, which motivated the government to conduct tighter regulation.
This thesis suggests some general implications of democratisation on the politics of regulation. The hierarchical and exclusive authoritarian policy network aims to realise policy goals set by ruling elites; however, for other policy issues, societal partners can utilise this network to promote their preferred policies. Democratisation, which promotes competitive elections and political rights, allows previously excluded policy actors to participate in policy-making networks. These new actors include professionals and activists who are able to understand regulatory issues and articulate them in ways that are salient to politicians and the general public, which will motivate the government to tighten the regulation governing its traditional policy partners.
Measurement of wind on the surface of Mars
Keywords: wind tunnel
wind sensor
Mars
meteorology
Beagle 2
anemometry

The Martian atmosphere is of great scientific interest, both because of its similarity to Earth’s atmosphere, and because of its relevance to exploration of Mars. Although satellite instruments have provided a wealth of atmospheric data, they have provided little information about the atmospheric boundary layer. Conditions in the lowest few metres of the Martian atmosphere are perhaps the most directly interesting to humans, as this is the portion of our own atmosphere with which we have the most contact.
In this thesis is described the design, calibration and operations planning for a new wind sensor for use on Mars. This sensor is lighter and smaller than previous Mars wind sensors. At the time of writing, the wind sensor is on its way to Mars as part of the science payload of Beagle 2, a small exobiology lander due to arrive in December 2003.
The Beagle 2 wind sensor (B2WS) is a hot-film anemometer. Three platinum films are equally spaced around the surface of a vertical cylinder. A known current is dissipated in each film, heating the film 40-80°C above the ambient gas temperature. The film temperature is obtained by measuring its resistance. An effective heat transfer coefficient is then calculated for each film. A novel scheme has been developed which allows calculation of a wind vector from the differences between these heat transfer coefficients, rather than from their average. This makes the measured wind vector less prone to common-mode errors such as uncertainties in air temperature or sky temperature.
The sensor was calibrated in a low density wind tunnel, optimised to provide stable winds of air or carbon dioxide at Martian pressures (5 – 10 mbar) and speeds (0.5 – 30 m/s). The flow field in the test section was calculated using analytical and finite element modelling techniques, and validated experimentally using a pitot probe. This facility’s stability and accuracy represent a significant improvement over previous calibration facilities.
An analytical model of heat flow in the sensor has been developed in order to permit correction for conditions which may be encountered on Mars, but were not tested for in the wind tunnel. The wind sensor’s performance in a real Martian atmosphere is simulated using wind and temperature data from a previous Mars lander.
The position of the wind sensor position at the end of Beagle 2's motorised arm allows several new possibilities for wind measurement on Mars that were unavailable in previous missions. The height of the wind and air temperature sensors can be adjusted to any height between 20 and 95 cm above the ground. The temperature sensor can be scanned horizontally and vertically above the lander to study convective updrafts above the heated lander. Planned operations sequences on Mars are discussed.
Simulation, synthesis, sunlight: enhancing electronic transport in solid-state dye-sensitized solar cells
Keywords: tio2
sno2
collection efficiency
modeling
solid-state
transport
mesoporous single crystals
msc
dye-sensitized
zno
nanowires
solar panels
mobility
photovoltaic
solar
solar cells
electronic transport
spiro
transient perturbation

The solid-state dye sensitized solar cell (SDSC) is an emerging photovoltaic technology which promises inexpensive materials, roll-to-roll processing, and a stable architecture. In this thesis, I seek to enhance electronic transport in order to enable thicker devices and yield higher power conversion efficiencies. I adopt a multipronged approach to advance three aims, employing analytical, computational, and experimental methodologies.
First, I generalize existing models of the dye sensitized solar cell (DSSC) to allow simple parameter fitting of real devices and to account for previously ignored electronic processes. In Chapter 3 and Chapter 4 I present a nondimensional model capable of fitting real devices and simulating transient behavior without extensive material knowledge. Subsequently in Chapter 5, I introduce a novel three-dimensional model which incorporates electronic drift.
Second, in Chapter 4 I critically assess a widespread method of measuring the charge collection efficiency, the summary metric that describes the efficacy of charge transport in the SDSC. I discover that the conventional method is inaccurate for values of the collection efficiency below 90% because of large experimental error and an intrinsic inaccuracy in applying a transient method to measure a steady-state parameter.
Third, I aim to increase the rate of charge transport by employing new materials and nanostructures in the place of conventional nanocrystalline TiO2. In Chapter 5, I present evidence of faster transport and enhanced efficiency in flexible SnO2 nanowire SDSCs, ZnO nanowire SDSCs, and the first viable SnO2/P3HT SDSC, where photoanode and hole transporter have been replaced with higher mobility materials. Finally, in Chapter 6, I investigate use of TiO2 mesoporous single crystals (MSCs) with high surface area and extended crystallinity. After demonstrating the viability of MSCs in SDSCs, I examine enhanced transport caused by the background doping effect of thermal treatment. Together, the progress achieved toward diverse and ambitious goals advances the field and delineates routes to future progress for SDSC development.
Imaging of HIV-1 spread from T cells and Macrophages to Astrocytes
Keywords: Immunology
Biology
Infectious diseases
HIV/AIDS

CD4+ T cells and macrophages are the principal targets of HIV-1. They can be productively infected with the virus and transfer virions to contacting bystander cells. It has been suggested that soon after initial infection, free virions and virus-bearing or infected T cells and macrophages can enter the brain, triggering a cascade of inflammatory signals and recruitment of other immune cells. Chronic inflammation and increased viral antigens in the brain lead to HIV-1 associated neuropathy.
Once free virions or infected cells enter the central nervous system, the first type of brain cells that they are likely to encounter are astrocytes, which extend endfeet around the blood vessels. These cells have been observed to contain virions and viral products, but their permissivity to productive infection has not been clearly demonstrated. By contrast, productive infection of resident microglia and perivascular macrophages is well established.
Here, I investigate the permissivity of astrocytes to HIV-1 infection and found no evidence of infection by the free route. However, I found that astrocytes intimately contact HIV-1 infected macrophages and CD4+ T cells and, in some cases, extend filopodial membrane toward the infected cell. In astrocyte-T cell contact sites, termed synapses, virions appear to move along the astrocytic filopodia from the T cell to the astrocyte. In this case, the target cell mediated viral transfer across the intercellular gap.
HIV-1-infected macrophages released virus that associated with astrocytes, remaining either on the surface of the astrocytes or within intracellular compartments. HIV-1 bound to astrocytes could be transmitted efficiently to permissive cells in trans. However, astrocyte-associated virus was sensitive to inhibitors including proteases and neutralizing antibodies, suggesting a surface-accessible compartment. This work provides insight into mechanisms of HIV-1 spread in the brain from infected CD4+ T cells and macrophages to astrocytes and their potential as virus reservoirs.
I also optimized high resolution, correlative focused ion beam scanning electron microscopy technology to answer fundamental biological questions. I demonstrate the application of the technology to study skeletal muscle cell differentiation mechanisms. I combine the power of genetic mapping with structural analysis to qualitatively and quantitatively describe cellular states and functions. Using semi-automatic image processing analysis, I was able to compute high volumes of data and generate statistics that relate quantitative measurements of cellular structures to functions. The toolset developed here will be instrumental in studying cells and tissues in both research and clinical applications.
Preclinical comparison of novel rotator cuff repair scaffolds
Keywords: Polydioxanone
Implant
Electrospinning
Tendon
Tendinopathy
Rotator cuff

Background: Rotator cuff tears affect up to 16% of the adult population, but inadequate treatment options are currently available. Our research group has developed a range of degradable scaffolds, manufactured from electrospinning and weaving, designed to assist the tendon repair both biologically and mechanically. The scaffolds have been successfully tested in vitro, however, to further assess the potential of these materials for clinical applications, an in vivo study is necessary.
Aim: The overall aim of this study was to assess the safety and biocompatibility of the scaffolds in vivo. The objectives included optimisation of the weaving process and assessment of the systemic and local host reaction to scaffolds upon implantation.
Methodology: The weaving process was first optimised to achieve satisfactory mechanical properties for the woven components. For the in vivo study, four different scaffolds were implanted into the shoulder of Lewis rats. The infraspinatus was transected and repaired using the scaffolds and at six timepoints up to 5 months, the shoulder joint was dissected for histological assessment. The foreign body response was assessed by hematoxylin and eosin (H&E) staining and by evaluating the presence of foreign body giant cells (FBGCs).
Results and Discussion: The optimisation of the weaving process resulted in the development of scaffolds with improved tensile strength. Upon implantation, most scaffolds did not indicate any severe adverse reaction. However histology revealed that the presence of large quantities of electrospun material elicits a strong foreign body reaction, with significantly more FBGCs in the group which had an electrospun scaffold compared to the positive control.
Conclusion: Scaffolds containing no or moderate electrospun materials seemed to be well tolerated by the rats and appear safe for human use. However, implanting large volumes of electrospun material may elicit an unwanted foreign body reaction and more in vivo work is needed to understand its tissue integration.
Mobile-enabled payment methods and public service delivery in Dar es Salaam, Tanzania
Keywords: public services
urban
Tanzania
water
East Africa
mobile

Rapid expansions of mobile communication technologies across sub-Saharan Africa have generated considerable optimism regarding their impact on socioeconomic development outcomes. Key payment applications, such as mobile-enabled payment instruments (i.e. SMS-based mobile money and wireless pay point services) are experiencing substantial adoption in East Africa and Dar es Salaam was the first city in sub-Saharan Africa to integrate these payment instruments into the urban water sector in mid-2009. Tanzania's largest city is demonstrative of the potential of mobile communication technologies to overcome water provision challenges such as inefficient billing and collection systems and revenue under-collection. This thesis uses Information and Communication Technologies for Development (ICTD) as an organising theoretical perspective to examine relationships between the use of mobile-enabled payment methods for water bill payments and customer payment behaviours, water utility performance, and access to water services. Data were collected using a survey methodology that tested hypotheses related to financial sustainability, petty corruption, satisfaction and service quality in payment practices, and neighbourhood resale in the informal water sector. Data sources include a survey administered to a stratified random sample of 1097 water utility customers; 42 semi-structured interviews with relevant stakeholders within the water sector and telecommunications industry; and a unique water payments database with information on approximately 1,000,000 water-related transactions made by over 106,000 customers. Qualitative and quantitative analyses provide evidence that the use of mobile-enabled payment methods can significantly improve customer payment behaviours (i.e. frequency of payment, annual revenue collection per customer), reduce opportunities for petty corruption (i.e. theft, bribery, and record-keeping), and support better access to improved water sources by unconnected households through neighbourhood resale practices. Implications for urban water provision in sub-Saharan Africa include higher collection efficiencies, more active customer bases, and wider direct and indirect reliance on utility-provided services. This thesis also contributes to ICTD scholarship by providing evidence that the use of mobile-enabled payment methods represents a disruptive transformation that enables more extensive and active citizen participation in the billing and payment processes of public service provision.
The Atkin operator on spaces of overconvergent modular forms and arithmetic applications
Keywords: p-adic geometry
Modular forms
computational number theory
Hecke operators

We investigate the action of the Atkin operator on spaces of overconvergent p-adic modular forms. Our contributions are both computational and geometric. We present several algorithms to compute the spectrum of the Atkin operator, as well as its p-adic variation as a function of the weight. As an application, we explicitly construct Heegner-type points on elliptic curves. We then make a geometric study of the Atkin operator, and prove a potential semi-stability theorem for correspondences. We explicitly determine the stable models of various Hecke operators on quaternionic Shimura curves, and make a purely geometric study of canonical subgroups.
Why child health policies in post-apartheid South Africa have not performed as intended: the case of the School Health Policy
Keywords: child health policy analysis
child health policy and equity
child health policy in post-apartheid South Africa
child health policy reform

The unprecedented scale of health sector reform in the course of radical political transformation in post-apartheid South Africa is well-documented. This thesis examines child health policy reform as a crucial part of this process. The goals of broader health sector reform were to improve the overall health status of citizens, in particular those most vulnerable, and eliminate inequities in health service provision and health status outcomes. Although children were accorded explicit prioritisation during this time, child health indicators remain poor and some have worsened. Amidst the documented explanations for the poor progress with child health indicators, the specific role and contribution of child health policies had not been interrogated.
The thesis examines the development, design and implementation of national child health policies, with particular focus on equity.
The National School Health Policy serves as a case-study for the analysis. Three complementary policy analysis frameworks guide the enquiry. Findings are based on a documentary analysis of key policies and 81 qualitative interviews with national policy makers and managers, provincial and district managers, and service providers in three socioeconomically different provinces of South Africa.
The common assertion by South African health system analysts, that "policies are good, but implementation is poor", is refuted by this research. The findings show that child health policies have many deficiencies in their design and development. These "poor policies" contribute to inadequate child health service provision, which in turn have a bearing on poor child health outcomes. In particular the failure in clearly defining and conceptualising equity in policy development and design contributed to the absence of equity considerations in the implementation phase. The explanations for these policy failures include: lack of strategic direction for child health services; poor policy making capacity; a lack of clear policy translation; and the diverse politics, power and passion of policy actors. Broader health system factors, such as an immature and poorly functioning district health system, compound these policy failures.
The thesis deepens the understanding of child health policy reform through a retrospective policy analysis and so contributes to the body of knowledge on policy reform in South Africa and in low- and middle-income countries more generally.