Recent advancements in technology have led to the increased use of integrated ‘systems of systems’ (SoS) which link together independently developed and usable capabilities into an integrated system that exhibits new, emergent capabilities. However, the resulting SoS is often not well understood, where secondary and tertiary effects of tying systems together are often unpredictable and present severe consequences. The complexities of the composed system stem not only from system integration, but from a broad range of areas such as the competing objectives of different constituent system stakeholders, mismatched requirements from multiple process models, and architectures and interface approaches that are incompatible on multiple levels. While successful SoS development has proven to be a valuable tool for a wide range of applications, there are significant problems that remain with the development of such systems that need to be addressed during the early stages of engineering development within such environments. The purpose of this research is to define and demonstrate a methodology called Systems Geometry (SG) for analyzing SoS in the early stages of development to identify areas of potential unintended emergent behaviors as candidates for the employment of risk management strategies. SG focuses on three dimensions of interest when planning the development of a SoS: operational, functional, and technical. For Department of Defense (DoD) SoS, the operational dimension addresses the warfighter environment and includes characteristics such as mission threads and related command and control or simulation activities required to support the mission. The functional dimension highlights different roles associated with the development and use of the SoS, which could include a participant warfighter using the system, an analyst collecting data iv for system evaluation, or an infrastructure engineer working to keep the SoS infrastructure operational to support the users. Each dimension can be analyzed to understand roles, interfaces and activities. Cross-dimensional effects are of particular interest since such effects are less detectable and generally not addressed with conventional systems engineering (SE) methods. The literature review and the results of this study have identified key characteristics or dimensions that should be examined during SoS analysis and design. Although many methods exist for exploring system dimensions, there is a gap in techniques to explore cross-dimensional interactions and their effect on emergent SoS behaviors. The study has resulted in a methodology for capturing dimensional information and recommended analytical methods for intra-dimensional as well as cross-dimensional analysis. A problem-based approach to the system analysis is recommended combined with the application of matrix methods, network analysis and modeling techniques to provide intra- and cross-dimensional insight. The results of this research are applicable to a variety of socio-technical SoS analyses with applications in analysis, experimentation, test and evaluation and training

The influence of leadership on team success has been noted extensively in research and practice. However, as organizations move to flatter team based structures with workers communicating virtually across space and time, our conceptualization of team leadership must change to meet these new workplace demands. Given this need, the current study aims to begin untangling the effects of distribution and virtuality on team leadership structure and subsequent team outcomes that may be affected by differences in conceptualizing such structures. Specifically, the goals of this study were threefold. First, this study investigated how the physical distribution of members may impact perceptions of team leadership structure, depending on virtual tool type utilized for communicating. Second, this study explored how different indices of team leadership structure may have different influences on team outcomes, specifically in terms of conceptualizing the degree to which multiple members are perceived as collectively enacting particular leadership behaviors via a network density metric, and conceptualizing team leadership in regards to the specialization of members into particular behavioral roles, as captured via role distance and role variety indices. Finally, this study expanded on current research regarding team leadership structure by examining how the collective enactment of particular leadership (i.e., structuring/planning, problem solving, supporting social climate) behaviors may facilitate specific teamwork processes (i.e., transition, action, interpersonal), leading to enhanced team performance, as well as how leadership role specialization may impact overall teamwork and team performance. Findings from a laboratory study of 188 teams participating in a simulated decision making task reveal a significant interaction for the influences of physical distribution and iv virtuality on perceptions of leadership structure, such that less distributed teams (i.e., those with fewer isolated members) were more likely to perceive their distributed members as participating in the collective enactment of necessary leadership responsibilities when communicating via richer media (i.e., videoconferencing, teleconferencing) than less rich media (i.e., instant messaging). However, virtuality and distribution did not impact the degree to which members were perceived as specializing in a particular leadership role, or the overall variety of leadership roles being performed. In terms of team outcomes, the perceived collective enactment of leadership emanating from distributed team members significantly predicted teamwork, while the perceived collective leadership of collocated members did not have a significant impact. Specifically, greater distributed team member involvement in the collective enactment of structuring/planning leadership positively impacted team transition processes, while the collective enactment of supporting the social climate positively predicted team interpersonal processes. Although the relationship between perceived leadership role specialization, in terms of role distance and role variety, and team performance was mediated by overall teamwork processes as expected, leadership role specialization had a negative impact on overall teamwork. Finally, while team action processes did not serve to mediate the relationship between perceived problem solving network density and team performance, team transition processes mediated the relationships between the collective enactment of structuring/planning for distributed members and team performance. The collective enactment of supporting the social climate by distributed team members and its relationship to team performance was also mediated by interpersonal teamwork processes. Together, these results reveal the importance in considering context, specifically virtuality and physical distribution, when designing, developing v and maintaining effective team leadership, teamwork, and team performance. Furthermore, they provide unique insight regarding how different configurations of leadership may be possible in teams. Study limitations, practical implications, and recommendations for future research and practice are further discussed.

Not much ink has been spilled over John Donne’s relationship to negative, or apophatic, theology. A few scholars have written about apophatic discourse in Donne’s poetry and sermons, but, in general, the subject continues to be overlooked. This thesis seeks to (re)start the conversation by shedding light on Devotions Upon Emergent Occasions, a text which has yet to be linked to the negative tradition despite its clear engagement in apophatic discourse. Indeed, throughout Devotions, Donne wields several apophatic strategies when speaking of God including via negativa, predicates of action, linguistic regress, paradox, and a consistent reliance upon metaphorical language. Each of these strategies uphold the two guiding principles of negative theology: the epistemic thesis which asserts that God is incomprehensible, and the semantic thesis which asserts that God is unspeakable therefore can only stand as the subject term in negative propositions. Significantly, my objective is not merely to qualify Devotions as an example of apophatic discourse; I also intend to contemplate the implications of qualifying it as such, namely how Devotions challenges the long-held assumption that apophasis requires the user to relinquish the body. Across the text, Donne’s apophasis does not lead him to un-body; on the contrary, the body gains new importance as Donne imagines the risen body, the interpersonal body, the body that cannot be lost because it is an inextricable facet of selfhood. Again, my hope is that this thesis will (re)start or (re)energize the conversation around Donne’s relationship to negative theology, a relationship that is much richer and more extensive than current scholarship suggests.

Artificial intelligence has traditionally been approached through centralized architectures and optimization of specific metrics on large datasets. However, the frontiers of fields spanning cognitive science, biology, physics, and computer science suggest that intelligence is better understood as a multi-scale, decentralized, emergent phenomenon. As such, scaling up approaches that mirror the natural world may be one of the next big advances in AI. This thesis presents Coralai, a framework for efficiently simulating the emergence of diverse artificial life ecosystems integrated with modular physics. The key innovations of Coralai include: 1) Hosting diverse Neural Cellular Automata organisms in the same simulation that can interact and evolve; 2) Allowing user-defined physics and weather that organisms adapt to and can utilize to enact environmental changes; 3) Hardware-acceleration using Taichi, PyTorch, and HyperNEAT, enabling interactive evolution of ecosystems with 500k evolved parameters on a grid of 1m+ 16-channel physics-governed cells, all in real-time on a laptop. Initial experiments with Coralai demonstrate the emergence of diverse ecosystems of organisms that employ a variety of strategies to compete for resources in dynamic environments. Key observations include competing mobile and sessile organisms, organisms that exploit environmental niches like dense energy sources, and cyclic dynamics of greedy dominance out-competed by resilience.

This dissertation is focused on three lines of work. In the first part, we consider aspects of holography and gauge/gravity duality in lower and higher dimensions. In particular, we study the duality for exact solutions localized on the Randal-Sundrum 2-branes. We also test if some holographic principles in general relativity can be generalized to include higher derivative theories of gravity; namely Lovelock gravity. In the second part we consider the role of pseudo Nambu-Goldstone bosons (pNGBs) in inflationary cosmology. Specifically, we construct an inflationary model using string theory axions, and use these pNGBs to produce the observed coherent magnetic field in the Universe. The third part of the thesis is devoted to the study of the phenomenology of emergent phenomena. we investigated whether one could test if diffeomorphism invariance, the sacred symmetry of general relativity, is emergent. We also construct a new minimal vectorial Standard Model, and argue that the absence of mirror particles predicted by this model can give us a hint about the fundamental nature of space.

Syftet med studien är att undersöka hur pedagoger i förskolan arbetar för att skapa en lärmiljö som främjar barnens språkutveckling. Studien fokuserar på hur pedagogerna använder lärmiljön och litteraturen för att stötta barn i språklig sårbarhet. Studien utgår ifrån samspel ur ett sociokulturellt perspektiv där vi fokuserar på Bruners begrepp scaffolding. Studien använder sig även av literacy med fokus på begreppen literacyevent, literacy practice samt emergent literacy.  För att undersöka vårt syfte använder vi oss av kvalitativa semistrukturerade intervjuer och en kvalitativ enkät. Resultatet pekar på att samspelet spelar en stor roll i barns språkutveckling och att pedagogerna kan dra nytta av samspelet för att främja barnens språkutveckling när de planerar verksamheten och utformar lärmiljöer. Resultatet visar även att pedagoger i många fall arbetar på samma sätt med barn i språklig sårbarhet som med övriga barn. Detta beror på att de arbetssätt man använder med barn i språklig sårbarhet anses vara givande för alla barns språkutveckling.  Pedagoger anser att det mest betydande för barns språkutveckling är att man är närvarande och tydlig i sin ledarroll och att man använder sig av TAKK och bildstöd. Pedagogerna betonar även att kunskapen om hur man använder material och arbetar språkfrämjande är nödvändig för att skapa en språkfrämjande lärmiljö. Studien kommer fram till att högläsning är oerhört betydelsefullt för barns språkutveckling och att pedagogerna lägger stort fokus på hur man arbetar med litteraturens innehåll genom musik, dans, skapande, dramatisering och boksamtal.

Understanding how fluctuations continuously propagate across spatial scales is fundamental for our understanding of inanimate matter. This is exemplified by self-similar fluctuations in critical phenomena and the propagation of energy fluctuations described by the Kolmogorov-Law in turbulence. Our understanding is based on powerful theoretical frameworks that integrate fluctuations on intermediary scales, as in renormalisation group or coupled mode theory. In striking contrast to typical inanimate systems, living matter is typically organised into a hierarchy of processes on a discrete set of spatial scales: from biochemical processes embedded in dynamic subcellular compartments to cells giving rise to tissues. Therefore, the understanding of living matter requires novel theories that predict the interplay of fluctuations on multiple scales of biological organisation and the ensuing emergent degrees of freedom. In this thesis, we derive a general theory of the multi-scale propagation of fluctuations in non-equilibrium systems and show that such processes underlie the regulation of cellular behaviour. Specifically, we draw on paradigmatic systems comprising stochastic many-particle systems undergoing dynamic compartmentalisation. We first derive a theory for emergent degrees of freedom in open systems, where the total mass is not conserved. We show that the compartment dynamics give rise to the localisation of probability densities in phase space resembling quasi-particle behaviour. This emergent quasi-particle exhibits fundamentally different response kinetics and steady states compared to systems lacking compartment dynamics. In order to investigate a potential biological function of such quasi-particle dynamics, we then apply this theory to the regulation of cell death. We derive a model describing the subcellular processes that regulate cell death and show that the quasi-particle dynamics gives rise to a kinetic low-pass filter which suppresses the response of the cell to fast fluituations in cellular stress signals. We test our predictions experimentally by quantifying cell death in cell cultures subject to stress stimuli varying in strength and duration. In closed systems, where the total mass is conserved, the effect of dynamic compartmentalisation depends on details of the kinetics on the scale of the stochastic many-particle dynamics. Using a second quantisation approach, we derive a commutator relation between the kinetic operators and the change in total entropy. Drawing on this, we show that the compartment dynamics alters the total entropy if the kinetics of the stochastic many-particle dynamics violate detailed balance. We apply this mechanism to the activation of cellular immune responses to RNA-virus infections. We show that dynamic compartmentalisation in closed systems gives rise to giant density fluctuations. This facilitates the emergence of gelation under conditions that violate theoretical gelation criteria in the absence of compartment dynamics. We show that such multi-scale gelation of protein complexes on the membranes of dynamic mitochondria governs the innate immune response. Taken together, we provide a general theory describing the multi-scale propagation of fluctuations in biological systems. Our work pioneers the development of a statistical physics of such systems and highlights emergent degrees of freedom spanning different scales of biological organisation. By demonstrating that cells manipulate how fluctuations propagate across these scales, our work motivates a rethinking of how the behaviour of cells is regulated.

<p>    </p> <p>Wordless picture book reading is one of the common literacy practices for young children that happen at schools and homes. This dissertation of three studies explores the reader-text transactions between young children and wordless picture books in three ways: a content analysis of wordless books potentially featuring characters of color, a multimodal analysis exploring children’s multimodal meaning making, and a mixed-method content analysis analyzing children’s performing social imagination and narrative imagination and change over time. Through analyzing a set of 39 wordless picturebooks with protagonists that can be potentially identified as people of color, the first article analyzed the books’ book themes, story events, and illustrations to explore how such books can function what Bishop suggested as windows, mirrors, and sliding glass doors and support young children to learn about themselves and others. The second article explores the potential of preschoolers’ multimodal meaning making during reading wordless picturebooks. Multimodal meaning making can be valued as literacy practices that are closely related to reading comprehension, teaching instructions, and assessments. The third article focuses on kindergarteners’ use of social imagination and narrative imagination during reading wordless picturebooks that reveal young children’s active engagement and meaning making in reading. This series of articles hold implication for teachers and researchers to understand the potential of using wordless picture books for young children’s access to diverse topics of readings, literacy practices, and assessment, specifically children’s imaginative and multimodal ways of responding to reading of wordless picture books. </p>

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