VictorJuiz/thesis huggingface dataset:
The dynamics of granular solids
Keywords: sand
flow

A theoretical and experimental examination into the dynamics of granular solids has been completed which covers aspects of flow and failure within this material. The investigation is divided into three natural sections; each section being devoted to a different type of failure. As indicated by the title, the subject of the study was cohesionless soil, and thus the basic tenets of soil mechanics and the failure of granular media are applicable. The first section deals with gravity flow of non-cohesive granular material in both axial and rectangular geometry. Traditional plasticity theory is used to establish characteristics of stress and strain, also stress sliplines within a wedge. From these, two relationships between the angle of internal friction and the bound to a radial flow field are established. A minimum energy theory of flow is discussed and then used to determine mass flow rates. From this theory a velocity profile is deduced an by use of either the entire profile or the vertical ray or the extreme angular ray three relationships between the bound tot he radial flow field and the mass flow rate are established. The limits to piping in axial symmetry are defined. It is shown that gravity flow in rectangular geometry must always result in pipes. Experiments were devised to substantiate these findings and they show that, dependent upon the assumptions that were made, the devised relationships bracket, within reasonable limits, the radial bound and the mass flow rate. Work of two other investigators is compared wit the presented experimental results. The definitions of pipe are shown to have validity. Section Two was the result of an attempt to measure a parameter that was relevant to the investigation in Section Three. The possibility of the passive rather than the active lateral earth pressure acting upon a shifting retaining wall was discovered while attempting the measurement of the coefficient of friction of sand on mild steel. The third section is concerned with an investigation into the factors that affect the forces on a horizontally propelled model that is immersed in sand. The parameters of depth, speed, projected model area, and other model characteristics were varied, and experimental relationships between the force and these parameters determined. Also, pressure measurements were made within the sand as the model passed to determine the extent of the failure region. Several other experiments, such as the effect of false walls on the force level, were made in order to determine the limits of validity of the main experiment. It was found that the force on the model varied as the 2.3 power of the depth, linearly with the projected model area, and not at all with model surface, model length, or speed in the range 0-15 feet per minute. The pressure measurements and false-walls studies showed that failure occurred within the sand and not at the walls of the tank; also that failure took the form of successive shear dislocation of pyramidally shaped wedges of sand.
Model testing of geogrids in unpaved roads
Keywords: unpaved roads
soil reinforcement

Simple unpaved roads consist of a layer of coarse granular material placed directly onto the surface of weak or compressible ground. It is thought that the construction of such roads can be considerably improved by the incorporation of a geogrid at the base of the granular fill layer. Geogrids are a type of geotextile, distinguished by their relatively large aperture size. Laying out a geogrid on the surface of the ground before placing the fill layer may in many cases allow a reduced thickness of fill material to be used, and may also substantially increase the load required to cause a complete failure of the system. No generally accepted design method exists for the construction of reinforced unpaved roads, due to the complex mechanisms which govern deformations in the system. The primary aim of this dissertation was to investigate the performance, in such a construction, of a particular geogrid, namely Tensar, manufactured by Netlon Ltd. A detailed model study into failure mechanisms was undertaken using laboratory apparatus constructed to conduct work at 1/4 full scale. Simple plane-strain, monotonic footing tests were carried out on systems consisting of a fill layer compacted onto a consolidated clay subgrade, both with and without the incorporation of a model grid at their interface. The testing technique included a comprehensive study of photographs taken of marker movements in the clay through the transparent sides of the test-box during tests. The relevant failure mechanisms associated with reinforced and unreinforced systems were established. In addition the significance of shear stresses acting at the subgrade surface was recognised and a concept whereby the appropriate subgrade bearing capacity factor is related to these shear stresses was developed. The modelling techniques adopted in this work obviated the need for a centrifuge.
Phytoplankton community structure, photophysiology and primary production in the Atlantic Arctic
Keywords: Arctic
phytoplankton
pigments
Primary Production
photophysiology
CHEMTAX

The Arctic is a region undergoing unprecedented and unequivocal climate change. The seas of this extreme region form a major component of the oceanic thermohaline conveyor and natural carbon cycle. Using a combination of recent and historical datasets this study examines the distribution, diversity, photophysiology and primary productivity of phytoplankton in the Atlantic sector of the Arctic Ocean. CHEMTAX analysis reveals a diverse phytoplankton community structure in the Greenland Sea comprising six main phytoplankton groups. The influence of sea-ice and water column stratification are key factors in the presence or absence of groups such as haptophytes and prasinophytes. Group-specific differences are observed in spectral absorption and photophysiological parameters. However, the influence of environmental factors has a stronger influence than taxonomic composition on photophysiology. A clear division between the photoacclimatory response of algal communities beneath sea-ice and those of open-ocean stations is predominantly due to ‘Ek independent’ photoacclimation beneath sea-ice. This occurs due to the combined effect of sea-ice decreasing irradiance entering the water column and a positive correlation between Pm B and temperature. This variation in photophysiology is important for primary production models as a sensitivity analysis shows that errors in these parameters propagate to give the largest final errors in primary production values. The importance of other model parameters varies with the level of biomass in the water column and the presence or absence of sea ice. Accelerated ice-melt and an increase in open water due to climate change are likely to increase primary production in the Atlantic Arctic alongside an altered distribution of phytoplankton groups, with an increase in the importance of prasinophytes or haptophytes.
Eighteenth-century women writers and the tradition of epistolary complaint
Keywords: Female Complaint
Epistolary Fiction
18th Century
Women Authors

This thesis considers the presence of the epistolary tradition of female complaint in the writings of five late eighteenth-century women writers: Hester Thrale Piozzi, Mary Wollstonecraft, Charlotte Turner Smith, Mary Robinson, and Frances Burney D’Arblay. The epistolary female complaint tradition is premised on the suggestion that readers are permitted, through the literary endeavours of male authors/transcribers, a glimpse into the authentically felt woes of women; the writers in this study both question and exploit this expectation. Often viewed by critics like John Kerrigan as a tradition that stifled female creativity, epistolary female complaint proves, this thesis argues, a lively and enlivening tradition for women writers; it provided opportunities for literary experimentation and enabled them to turn their experiences into artistic form.
Five themes central to the epistolary female complaint tradition are considered: betrayal, absence, suicide, falls, and authorship. Each chapter looks at one theme and one author specifically. Chapter 1 examines the narrative of betrayal Hester Thrale Piozzi established in her journals from 1764 to 1784. Chapter 2 turns to Mary Wollstonecraft and her accounts of absence in her private letters to Gilbert Imlay, and her epistolary travel account, A Short Residence in Sweden, Norway, and Denmark (1796). Chapter 3 discusses Charlotte Turner Smith’s engagement with the theme of suicide in her Elegiac Sonnets (1784) and her epistolary novel, Desmond(1792). Chapter 4 considers the strategies employed in Mary Robinson’s autobiographical, poetic, and fictional writings, which work to move beyond the moral fall the tradition implied. Chapter 5 focuses on the recurrent theme of authorial debt in Frances Burney D’Arblay’s journals, plays, and fiction. I conclude by considering Jane Austen’s appropriation of the tradition in her final novel, Persuasion (1818), and her transformation of the tradition by providing a resolution to the cause of complaint.
The medieval ‘vates’: prophecy, history, and the shaping of sacred authority, 1120-1320
Keywords: scholasticism
Italian humanism

Belief in prophetic inspiration and the possibility of discerning the future was a cornerstone of medieval conceptions of history and of God’s workings within that history. But prophecy’s significance for the Middle Ages is due as much to the multiplicity of its meanings as to its role as an engine of history. Prophetia was described in terms ranging from prediction and historiography to singing and teaching. This thesis examines the attempts of medieval thinkers to wrestle with these ambiguities. The nature and implications of prophetic inspiration were a crucial area of contention during the twelfth and thirteenth centuries, as scholastic theologians, with their particular techniques and standards of rationality, attempted to make systematic sense of inspired speech and knowledge. These attempts reveal a great deal about medieval structures of knowledge, and about theological reflections on the Church’s place in history. The stakes were high: ‘prophecy’ not only was the subject of Old Testament exegesis, but also, in its various forms, was often the basis of authority for exegetes and theologians themselves, as well as for preachers, visionaries, saints, and even writers of secular works. Those who claimed the mantle of the prophet came just as easily from inside the institutional structures as from outside. Theologians began legitimating a moderate form of inspiration that justified their own work through ordinary activities such as teaching and preaching, while trying to keep at bay perceived threats from powerful assertions of prophetic authority, such as Islam, female visionaries, and schismatic and apocalyptic Franciscans. This study argues that, as theologians sought to determine the limits of prophetic privilege, and to shape prophecy for their own purposes, they actually opened space for claims of divine insight to proliferate in those ordinary activities, and in a way that went beyond their control.
Innovation in Arabic online newsrooms: 
Keywords: Egypt
Qatar
online news
arabic newsrooms
sociology of newsrooms
Morocco
Arab spring
multimedia innovation
social shaping of technology
Aljazeera

This study focuses on the factors shaping innovation in online newsrooms in three nations of the Arab World, with particular interest in the adoption of multimedia news innovations. Applying theoretical perspectives from the social shaping of technology and the diffusion of innovation literature, this study sought to identify the key factors shaping the innovation process. Field studies were based in three Arabic newsrooms: Aljazeera Net in Qatar, Almasry Alyoum in Egypt, and Almassae in Morocco. The case studies are grounded in two weeks of participant-observation field research within each online newsroom, along with over 100 in-depth interviews with those involved in the production of online news, and online archival reviews of the three news portals since their inception. Field research began with participant observation at Aljazeera in 2010, prior to the uprisings of the Arab Spring, and continued through early 2013. The political context of each newsroom during the field research became a major aspect of the innovation process of each case study. The thesis reinforces a wide range of social, economic, and organizational factors in the adoption and adaptation of multimedia technologies in the newsrooms studied, supporting earlier research on newsroom innovation across other regions of the world. For example, conceptions about ‘ideal’ industry multimedia models for the modern newsroom were important in each case. However, in the political context of events related to the Arab Spring, the overriding importance of the larger political context emerged in each case. The significance of this observation suggests that research on news organizations cannot take the political context for granted and should more explicitly embed it in discussion of the social shaping of innovation, even under more stable and liberal political conditions. There is a relative lack of systematic empirical research on Arabic newsrooms among studies of news innovation. Looking at the political context of emergent or weak democracies and their influence on modern multimedia newsrooms especially during crisis events, therefore, can contribute to the development of theory and research in Western democracies; and reintroduce politics into theories of innovation within modern newsrooms. This study suggests that future scholarship brings politics into the study of the social shaping of newsroom innovation without losing the many significant advances of existing research in more liberal democratic Western contexts of the multimedia newsroom.
Murder and create: state reconstruction in Rwanda since 1994
Keywords: Social Sciences
History of Africa
Authoritarianism
Conflict
Post-Conflict Reconstruction
Governance in Africa
Migration
Violence (refugees)
Political science
State-Formation
Return and reintegration
War (politics)
Political economy of markets and states
Rwanda
Refugee camps and settlements

This thesis attempts to reconcile the ‘two Rwandas’ which dominate contemporary scholarship, and seem on first glance utterly incommensurable: the inspirational developmental donor darling, and the brutal police state ruled by a shadowy ethnic clique. It argues both sides capture something, but fail to give a fair assessment of the mercurial system of political order constructed by the Rwandan Patriotic Front (RPF) following the Genocide of 1994. This system is a durably strong state with exceptionally high levels of societal penetration capable of delivering order and other public goods, with a ruling party in a hegemonic position with a degree of medium-term stability, despite (and because of) its illiberal repressive character.
Such a system is only possible because of the extremely unusual sociology of the RPF itself, forged in the refugee camps of Uganda and the Ugandan Bush War, and the structural constraints on rule within Rwanda. With these resources, the RPF has successfully made the transition from guerilla movement to hegemonic civilian political party, created bureaucratic institutions of government which penetrate to the lowest level, and hugely profitable ‘party-statals’ which co-exist alongside functioning competitive markets. Such successes are not disconnected from the violence, repression, and extra-judicial coercion which remain crucial to the regime. Analyses which think the positive aspects of Rwanda’s current ‘miracle’ can be mimicked without the accompanying domination and autocracy are engaging in wishful thinking. Crucially, given how distinctive the enabling conditions for Rwanda’s current political dispensation are, the extent to which Rwanda can be a policy exemplar or ‘best-practice’ for other African states to follow is in any case seriously overstated.
Being and owning: the body, bodily material and the law
Keywords: Bodily Material
Property Rights
Medical Law

The purpose of this Thesis is to determine which set of private law rules ought to apply to the use and storage of bodily material. I recommend that the most appropriate legal approach is through a combination of property rights and duties of confidentiality. The suggestion is that where a healthcare institution obtains possession of bodily material, their possession of the material may give rise to property rights in the material. In addition, where an individual retains entitlements in bodily material that is held by a healthcare institution, the entitlements of the individual ought to be protected through the imposition of duties on the healthcare institution that are akin to duties of confidentiality.
This recommendation is the product of two main inquires. The first inquiry concerns which entitlements individuals and institutions ought to be able to exercise in separated bodily material. This involves an investigation into which aspects of the relationship between a person and their body can also be found in the relationship between a person and their separated bodily material. It also involves an assessment as to which societal interests can be served through allocating entitlements in bodily material to healthcare institutions, and how to resolve the conflict between individual and societal interests in the use and storage of bodily material.
The second main inquiry concerns the way in which different branches of private law are able to protect entitlements in things. I identify that property rights, rights of bodily integrity and privacy are similar insofar as they protect entitlements through the exclusion of others. Property rights are nonetheless distinct as property law concerns rights than can exist independently of the rights-holder. The recommended approach follows from connecting the different entitlements in bodily material that ought to obtain legal protection with different ways an entitlement may be afforded legal protection.
The effects of resource availbility on the subsistence strategies of Datoga pastoralists of north west Tanzania
Keywords: subsistence economics
livestock dynamics
Datoga
pastoralist economics
herding strategies
East Africa
Tatoga
nutrition
Barabaig
child labour
pastoralism

Many early anthropological studies treated pastoralist populations as egalitarian, however there is considerable variation in the resources available to individual households. This thesis considers how resources influence the subsistence system of the pastoral Datoga of Lake Eyasi. The two categories of resources considered are wealth and labour.
The labour available to Datoga households does not influence the herding strategies of those households. In turn, the herding strategies do not affect the dynamics of cattle herds. This is because households that are short of labour can arrange for their animals to be herded by members of different households, and there are no discernible costs associated with this.
Wealth, defined by livestock holdings, can be measured either as total household wealth, or as wealth per capita. These are conceptually distinct. Among the Datoga, households that are wealthy in terms of total livestock holdings, are also wealthy in terms of wealth per capita, but not proportionally more so. Once households have about five livestock units per capita, any increase in household wealth is used to attract new people to the household, rather than to increase the wealth of existing household members.
For many aspects of the production system overall household wealth and wealth per capita have a similar effect, but this is not always the case. In some instances overall household wealth can explain variation between households, whereas wealth per capita cannot. This occurs when the absolute number of animals belonging to a household is important. In terms of provisioning the household and household economics, per capita wealth explains more of the variation between households.
Overall the Datoga are struggling to survive. They have been alienated from more fertile areas, and consequently they are poor, and herd productivity is low. This is due to the low reproduction rate of cattle, and the high commercial offtake rate of both cattle and small stock. The high commercial offtake rate is driven by subsistence needs and most income is used to buy grain and veterinary products. However, there is considerable variation between households, and compared to poor households, wealthy households have a comparatively low offtake rate of livestock, in terms of both mortality and sales. Consequently, they are managing to retain their livestock holdings, or in a few cases to increase the size of their herds. However, wealthy households are in the minority, and the majority of households are caught in a declining cycle of poverty, and will eventually be forced to drop out of the pastoral system.
Heinrich Heine in Paris: the poetics and politics of self-fashioning
Keywords: Heinrich Heine
self-fashioning

Drawing on the concept developed in Stephen Greenblatt’s Renaissance Self-fashioning: From More to Shakespeare, this thesis presents Heinrich Heine as an extreme case of the ‘self-fashioning’ writer. I argue that his preoccupation with self-construction determines what and how he writes, how he treats his reading public and, crucially, how he perceives and evaluates his own career.
Though self-fashioning occurs in his earliest works, Heine’s decision to move to Paris (1831) was the single biggest self-determining act of his life; he constructs it as a moment of rebirth. Inspired by the July Revolution, he sought a new authorial identity in harmony with the supposed new world order and his own social, political and artistic ideals. However, the reality of juste-milieu society—a continual seesawing between modernisation and restoration—cast doubt on the possibility, even the desirability, of novelty and progress, the goals of revolution.
In this context, Heine cultivates the identity of a perpetually embattled writer through confrontational dialogue with contemporary ideologies and his readership alike; ever ambivalent in his attitude to the role of art in a modernising world, he is also engaged in an internal battle with the self. First I show how he establishes himself in the role of cultural correspondent in the early journalism by developing a mode of self-conscious spectatorship which enables him to negotiate between contemporary French conditions and German readership expectations. Second I investigate the strategies he uses to free himself from his Buch der Lieder legacy and redefine his identity as a poet in Paris; I show how the Neue Gedichte (1844) are assembled to record and reflect on this transitional process, making the collection a monument to his self-fashioning tendencies. Finally I explore how Heine manipulates the relationship between public and private within a concept of self to construct his authorial identity; I consider a number of self-editing and self-reconstructive practices in prefaces, letters and autobiographical writing.