VictorJuiz/thesis huggingface dataset:
Cognitive developmental foundations of cultural acquisition: children's understanding of other minds

Psychological research suggests that children acquire cultural concepts through early developing cognitive mechanisms combined with specific cultural learning. An understudied area of cultural acquisition is children’s understanding of non-human minds, such as God. This thesis gives evidence that young children need not anthropomorphize non-human minds in order to understand them. Instead, children have a general “theory of mind” that is tailored through experience to accommodate the various important minds in their cultural environment. The intuitive default is toward super-attributes, making children naturally inclined or “prepared” to acquire god concepts. Four empirical studies were conducted with 75 British and 66 Israeli preschool-aged children. In Study 1, children participated in an ignorance-based theory-of-mind task and were asked to consider the mental states of human and supernatural agents. Children at all ages attributed correct knowledge to the supernatural agents and ignorance to the human agents. In Study 2, children participated in two perception-based theory-of-mind tasks and were asked to consider the perspective of two super-perceiving animals, God, and two human agents. Three-year-olds attributed knowledge to the animals and God and, by age four, children could distinguish among agents correctly. Also, by age four, children recognized that aging limits the perception of human agents but not God’s. In Study 3, children participated in a memory-based theory-of-mind task in which they were asked to consider the memory of God and differently aged agents Children at all ages responded that God would remember something that the children themselves had forgotten. By age five, children responded that a baby and granddad would have forgotten. These results propose that preschool-aged children regard individual constraints when considering mental states. Study 4 focused on children’s notions of immortality. Cultural differences were found. British children attributed immortality to God before correctly attributing mortality to human agents, and Israeli children attributed immortality to God and mortality to humans more consistently than did British children. Collectively, these studies indicate that children do not have to resort to anthropomorphism to reason about non-human agents but instead have the cognitive capacity to represent other types of minds because of early cognitive capacities. It appears that concepts vary in their degree of fit with early-developing human conceptual systems, and hence, vary in their likelihood of successful cultural transmission.

Keywords: cultural transmission
god concepts
theory of mind
cognitive science of religion
cognition and culture
cognitive development
Advisor: Barrett, J
Global connectivity, information diffusion, and the role of multilingual users in user-generated content platforms

Internet content and Internet users are becoming more linguistically diverse as more people speaking different languages come online and produce content on user-generated content platforms. Several platforms have emerged as truly global platforms with users speaking many different languages and coming from around the world. It is now possible to study human behavior on these platforms using the digital trace data the platforms make available about the content people are authoring.
Network literature suggests that people cluster together by language, but also that there is a small average path length between any two people on most Internet platforms (including two speakers of different languages). If so, multilingual users may play critical roles as bridges or brokers on these platforms by connecting clusters of monolingual users together across languages. The large differences in the content available in different languages online underscores the importance of such roles.
This thesis studies the roles of multilingual users and platform design on two large, user-generated content platforms: Wikipedia and Twitter. It finds that language has a strong role structuring each platform, that multilingual users do act as linguistic bridges subject to certain limitations, that the size of a language correlates with the roles its speakers play in cross-language connections, and that there is a correlation between activity and multilingualism. In contrast to the general understanding in linguistics of high levels of multilingualism offline, this thesis finds relatively low levels of multilingualism on Twitter (11%) and Wikipedia (15%).
The findings have implications for both platform design and social network theory. The findings suggest design strategies to increase multilingualism online through the identification and promotion of multilingual starter tasks, the discovery of related other-language information, and the promotion of user choice in linguistic filtering. While weak-ties have received much attention in the social networks literature, cross-language ties are often not distinguished from same-language weak ties. This thesis finds that cross-language ties are similar to same-language weak ties in that both connect distant parts of the network, have limited bandwidth, and yet transfer a non-trivial amount of information when considered in aggregate. At the same time, cross-language ties are distinct from same-language weak ties for the purposes of information diffusion. In general cross-language ties are smaller in number than same-language ties, but each cross-language tie may convey more diverse information given the large differences in the content available in different languages and the relative ease with which a multilingual speaker may access content in multiple languages compared to a monolingual speaker.

Keywords: Human-Computer Interaction
Multilingualism
Information Diffusion
Advisor: Meyer, E
González-Bailón, S
Contesting the humanitarian regime in political emergencies:  International NGO policies and practices in Sri Lanka &amp; Afghanistan, 1990-2010

The legal humanitarian regime, set out in the Geneva Conventions and Additional Protocols, strives to alleviate human suffering through the provision of emergency goods and services, such as food supplies, water, temporary shelter, and medical treatment. This thesis examines how international non-government organizations (INGOs) contribute to the contestation of this regime in political emergencies, the effects of this contestation, and the factors driving INGO contestation.
The thesis develops an analytical framework for understanding the nature and functioning of the legal humanitarian regime, and argues that INGO contestation occurs through the two processes of regime interpretation and regime implementation. It then goes on to identify the substantive content and effects of contestation, and the factors driving INGO contestation of the regime, through a detailed study of the policies and practices of CARE, Médecins Sans Frontiers, Oxfam, and World Vision, in Afghanistan and Sri Lanka, from 1990-2010.
The thesis argues that contestation has constitutive effects, as it re-defines the meaning of the formal humanitarian regime, and the underlying rules and norms that specify the regime’s function, scope, and operating principles. Contestation also has causal effects, as it can make INGOs participants in the conflict, eroding thereby the basis on which they negotiate access and their ability to respond to humanitarian needs, and the security of their staff. It has also facilitated the subordination of humanitarian assistance by donor states and combatants to their political and security objectives.
INGO identity - expressed in terms of the constituent rules and norms that define INGO membership, their mandate and goals, and the manner in which they distinguish themselves from other actors - is argued to be a necessary factor for explaining INGO contestation. The focus on identity highlights the agency of INGOs in shaping the humanitarian regime and demonstrates that INGOs are not simply at the mercy of more powerful actors or external constraints.

Keywords: Sri Lanka
humanitarianism
non-governmental organizations
conflict emergencies
Afghanistan
Advisor: Welsh, J
Democratic regime-building

This thesis examines democratic transitions that occur in the context of international administration, where international actors not only provide assistance and guidance regarding domestic development, but also hold temporary executive authority over some or all of the functions of government. It argues that the process of regime change in the context of international administration is systematically different from more conventional settings, where such extensive international intervention is absent.
The theoretical framework of the thesis suggests that the most significant impact of international administration derives from the fact that external actors assume roles conventionally held by domestic actors, and thus have available to them extensive mechanisms of influence at the domestic level. International agents can favour some local elites over others, structure the political environment through agenda-setting and veto powers, and ultimately bypass local actors if deemed necessary by drafting and imposing laws and institutions. As a result, the presence of international administrators heavily shapes the final mode of transition, and one of the most significant implications of the external influence is that purely non-democratic regime outcomes are unlikely to emerge.
However, the influences of international administration are not always positive, and neither are they constant across contexts. The final impact on the transition process itself will depend in large part on the nature of the domestic political landscape, and in particular the balance of power and ideology among the domestic political parties. When domestic elites are favourable to democracy, international administrations can work with local actors to co-author a new democratic regime through a pacted transition. When dominant local parties are opposed to democratic development, however, the international and domestic interaction may contribute to a more conflicrual and contentious mode of transition entailing elements of international imposition. The nature of the transition mode will, in turn, have implications for post-transition regime consolidation.
These findings are based on a structured, focused comparison of three cases, those of Bosnia, Kosovo and East Timor. In attempting to isolate the international influence, the case studies utilise the process tracing method to identify the causal mechanisms that connect international actions to democratic political outcomes, and the experiences in each case are compared to facilitate the generation of bounded generalisations about the impact of international administration on the processes of regime change.

Advisor: Whitehead, L
Speech and action in the Antiquitates Romanae of Dionysius of Halicarnassus: the question of historical change

This thesis examines the relationship between speech and action in Dionysius' Antiquitates Romanae. It consists of five main chapters, an introduction and a conclusion. In the introduction I establish the status quaestionis and consider different modes of presenting discourse. Chapter 2 is an intertextual analysis of Dionysius' first preface, AR I.1-8, exploring Dionysius' engagement with his Greek and Roman predecessors. I take one modern theory, concerning Dionysius apparent 'idealisation' of the Roman past, in order to examine the relationship between the Antiquities and Dionysius' rhetorical works. In the four chapters that follow, I trace the changing texture of narrative across the Antiquities, sinking shafts at moments to examine closely what is going on. First (ch. 3), I analyse speech in the Regal Period, focusing on the story of Lucretia and Brutus (AR IV.64-85), and the way that Herodotean allusion meshes with intratextual devices to narrate the fluctuations of the Regal Period. Chapter 4 is a paired reading of (4a) the story of Coriolanus' trial (VII.21-66) and (4b) the story of Coriolanus' encounter with his mother (VII.39-62). Ch. 4a concentrates on Thucydides and Isocrates, and how Coriolanus' trial binds the Greek literary past to the first-century Roman present. In 4b, I examine how Dionysius manages the shift between high politics and family relationships. Chapter 5, on the decemvirate (X.50-XI.44), explores again Roman tyranny, this time in a Republican frame; the power of the senate is consequently in point here. Chapter 6, on AR XIV-XX, probes the questions of Greek and Roman ethnicity and the individual which had arisen in the earlier chapters. In the conclusion I consider the precise question of Dionysius' Augustanism, relating it to Dionysius' apparent status in Rome.

Keywords: Coriolanus
historiography
Thucydides
Lucretia
Antiquitates Romanae
Rome
Dionysius of Halicarnassus
Brutus
Isocrates
Advisor: Pelling, C
Eternal existents: in defence of the Williamsonian view of time

My thesis is a development and defence of the "Williamsonian" view of time, a temporalmetaphysical theory based on Timothy Williamson’s (1998, 1999, 2000, 2002) views concerning modality. As far as I am aware, the theory has never been developed or defended in print. The Williamsonian view is a version of the "a-theory" of time based on acceptance of the thesis of eternal existence, according to which always, everything always exists (i.e. everything exists eternally). I defend the Williamsonian view by showing that every other plausible temporal-metaphysical theory is subject to serious objections that cannot be raised against the Williamsonian view. I conclude that the Williamsonian view is the only plausible theory of time.

Keywords: presentism
philosophy of time
Metaphysics
Timothy Williamson
the a-theory
Advisor: Hawthorne, J
Analysis of nucleotide synthesis and homologous recombination repair in Schizosaccharomyces pombe

Nucleotide synthesis is a conserved and highly regulated response to DNA damage, required for the efficient repair of DNA double strand breaks (DSB) by homologous recombination (HR). This is essential to prevent loss of heterozygosity (LOH) and maintain genome stability. The aim of this study was to identify new genes important for HR through roles in damage-induced nucleotide synthesis. A screen was performed to identify S. pombe gene deletion strains whose DSB sensitivity was suppressed by deleting the ribonucleotide reductase (RNR) inhibitor spd1+ to promote nucleotide synthesis. The screen identified a number of genes including ddb1+, cdt2+, rad3+ and csn1+ which have known roles in nucleotide synthesis.
Distinct roles were identified for the DNA damage checkpoint in suppressing LOH. rad3+, rad26+, rad17+ and the rad9+, rad1+ and hus1+ genes encoding the 9-1-1 complex were required for DNA damage-induced nucleotide synthesis through Cdt2 induction to promote Spd1 degradation. The HR repair defect of rad3+ and rad26+ deletion strains was partially suppressed by spd1+ deletion. However, the HR repair defect of rad17+, rad9+, rad1+ and hus1+ deletion strains was not suppressed. An additional role was confirmed for Rad17 and the 9-1-1 complex in preventing LOH by promoting DSB resection.
A role was identified for the Gcn5 histone acetyl transferase (HAT) protein module, consisting of Gcn5, Ngg1, Ada2 and Sgf29, in suppressing DSB sensitivity by promoting nucleotide synthesis. This was independent of Cdt2 or RNR protein levels. The Gcn5 HAT module was also found to regulate DSB repair pathway choice consistent with previous observations. Deletion of gcn5+, ngg1+ or ada2+ decreased HR and increased non-homologous end joining. Surprisingly, deletion of spd1+ in a gcn5∆, ngg1∆ or ada2∆ background also promoted HR. This predicts a role for nucleotide pools in regulating DSB repair pathway choice.
Eleven other candidates showed repeatable suppression of DSB sensitivity following spd1+ deletion. However many of these candidates did not show reduced nucleotide levels. This suggests deleting spd1+ may also suppress DSB sensitivity by a different mechanism.

Keywords: DNA double strand break
homologous recombination
Schizosaccharomyces pombe
Advisor: Humphrey, T
Simultaneous Localisation and Mapping Using a Single Camera

This thesis describes a system which is able to track the pose of a hand-held camera as it moves around a scene. The system builds a 3D map of point landmarks in the world while tracking the pose of the camera relative to this map using a process called simultaneous localisation and mapping (SLAM). To achieve real-time performance, the map must be kept sparse, but rather than observing only the mapped landmarks like previous systems, observations are made of features across the entire image. Their deviation from the predicted epipolar geometry is used to further constrain the estimated inter-frame motion and so improves the overall accuracy. The consistency of the estimation is also improved by performing the estimation in a camera-centred coordinate frame.
As with any such system, tracking failure is inevitable due to occlusion or sudden motion of the camera. A relocalisation module is presented which monitors the SLAM system, detects tracking failure, and then resumes tracking as soon as the conditions have improved. This relocalisation process is achieved using a new landmark recognition algorithm which is trained on-line and provides high recall and a fast recognition time.
The relocalisation module can also be used to achieve place recognition for a loop closure detection system. By taking into account both the geometry and appearance information when determining a loop closure this module is able to outperform previous loop closure detection techniques used in monocular SLAM. After recognising an overlap, the map is then corrected using a novel trajectory alignment technique that is able to cope with the inherent scale ambiguity in monocular SLAM.
By incorporating all of these new techniques, the system presented can perform as a robust augmented reality system, or act as a navigation tool which could be used on a mobile robot in indoor and outdoor environments.

Keywords: relocalisation
Monocular
SLAM
Computer Vision
loop closing
Simultaneous localisation and mapping
Advisor: Reid, I
'A MODERN-BUILT HOUSE ...fit for a Gentleman': elites, material culture and social strategy in Britain, 1680-1770

A 1755 advert in the Gloucester Journal listed for sale, ‘A MODERN-BUILT HOUSE, with four rooms on a floor, fit for a gentleman’. In the late-seventeenth and eighteenth centuries, ‘gentlemen’s houses’ like the one described evolved as a cultural norm. This thesis offers a social and cultural reading of an under-studied group of small free-standing classical houses built in the west of England between 1680 and 1770. By developing a profile of eighty-one gentlemen’s houses and one hundred and thirty-four builders and owners, this study unites subjects such as the history of architecture, landscapes, domestic interiors, objects and social development that are often treated separately.
The design, spatial arrangement, and furnishings of gentlemen’s houses precisely defined the position of their builders and owners in the social hierarchy. The 1720s marked an important shift in the location and meaning of building that corresponded to an alteration in the background of builders. Small classical houses moved from a relatively novel form of building for the gentry to a conventional choice made by newcomers often from commercial and professional backgrounds. Gentlemen’s houses projected status in a range of settings for both landed and non-landed elites, highlighting the house as a form of status-enhancing property rather than land. Moreover, gentlemen’s houses had adaptable interior spaces and were furnished with an array of objects that differed in number and quality from those lower and higher in society.
The connections between gentlemen’s houses and important processes of social change in Britain are striking. House-building and furnishing were measured strategic activities that calibrated social status and illustrated mobility. This thesis demonstrates that gentlemen’s houses are one key to understanding the permeability of the English elite as well as the combination of dynamism and stability that characterized eighteenth-century English society.

Keywords: cultural history
decorative arts
architecture
gentlemen
classical
country houses
genteel
material culture
social history
Atlantic world
inventories
Georgian
Advisor: Gauci, P
Essays on consumer behaviour and pricing

This dissertation is a collection of five essays examining different aspects of consumer and firm behavior in dynamic markets.
The first essay combines clickstreams of users at a major news website with Facebook activity data, to study if social networks complement or compete for online browsing time. This is the first empirical study to show that Facebook activity increases time spent on news sites. Online news consumption is a shared experience, as the activity of social network friends strongly influences the behavior of other network members. We also find that visitors’ own browsing patterns are important predictors of online content consumption.
The second essay examines consumer attitudes to risk and uncertainty vis-a-vis their purchase and search decisions for air tickets online. Using a two-stage model of purchase incidence and carrier choice, we find that browsing experience, search costs and product characteristics are important predictors of purchase incidence. Implications for website managers are also discussed.
The third essay provides insights on the impact of customer heterogeneity and preference stochasticity on behavior based price discrimination. While customer heterogeneity intensifies competition, resulting in greater price discrimination, preference stochasticity reduces the incidence of price discrimination. Overall, the effect of preference stochasticity is more salient.
The fourth essay presents models of strategic interaction to analyze the impact of dominance and concentration on pricing strategies. We show that lack of market dominance is a sufficient condition for discounts to existing customers. We further test our predictions via an experiment with pricing professionals. The behavior of professionals confirms that price discrimination increases with market dominance and concentration; however, lack of dominance is not a sufficient condition for loyalty discounts. We contend that increasing competition is a more effective means of improving consumer welfare compared to regulating dominant firms.
The fifth essay considers the role of identity and customer type recognition in influencing pricing behavior in dynamic markets with symmetric and asymmetric players. When customer identity is detectable firms charge higher prices to repeat customers while new customers are offered lower prices. However, pricing behavior changes when information on customer type is available and this behavior varies with market structure. Age, education and experience of managers are also found to significantly influence pricing behavior.

Keywords: Content Consumption
Price Discrimination
Pricing Strategy
Social Networks
Experiments
Choice Models
Consumer Search
Advisor: Vulkan, N