Due to the emergent and dynamic nature of incidents, the complexity of emergency work is often referred to as a challenge for learning. Another recurrent challenge in emergency work is that of collaboration at and across established organizational boundaries involving actors with specific types of expertise who are operating under different regulations and responsibilities. In addition, training emergency service organizations in collaboration remains a challenge. In light of the difficulties and shortcomings that have been identified in major incident responses, the need for exercises for developing and maintaining collaborative response effectiveness prior to the next incident is often highlighted. The overall aim of this thesis is to understand how full-scale exercises can provide conditions for developing inter-organizational collaboration between the police, ambulance and rescue services at the incident site. Learning activities that carry the potential to support and develop collaborative capacity, and how the alignment of distributed expertise can be trained for, were of particular interest. Interviews with participants in eight full-scale exercises with professionals and interviews and observations of one exercise with senior-level students in Sweden served as the empirical base.Central concepts from Cultural-Historical Activity Theory (CHAT) provided theoretical tools to explore the exercises and understand boundaries between organizations with a wider, systemic approach. The empirical studies show that the participants understood full-scale exercises to be valuable opportunities for becoming involved in response work, making decisions, and acting and interacting in uncertain situations and realistic environments. As in real-life responses, exercises are characterized by the stabilization and confirmation of everyday routines on the one hand, and by improvisation and change on the other hand. The studies also show that exercises tend to focus on specific scenarios,intra-organizational routines, and leadership positions. Infrequent exercises inwhich the participants were only trained in a limited role were perceived to be in adequate for developing preparedness and collaboration. However, the analysis suggested that the way in which exercises were organized and performed had implications for how participants were trained in collaboration.Realizing the potential of boundaries as resources for learning in exercises depends on how boundaries are explicated and approached. Thus, rather than striving to ignore or eliminate boundaries in exercises, the studies illustrated the learning value of explicitly reflecting on the multiple understandings around boundaries. The studies demonstrated that much of the work at an incident site takes place around negotiations. Collaboration at the incident site was not only aquestion about boundary crossing; operational tasks may not always be aligned and have to be prioritized and sequenced. The exercises comprised work situations in which no single motive could explain or determine the collaboration,due to different types of expertise, primary responsibilities and needs forinformation. These factors were understood in terms of the concepts of boundarywork and boundary awareness. These concepts point at a more divergent understanding of collaboration that reaches beyond striving to create mutual understanding between organizations in learning activities. Differences between organizations, such as in terminology, time horizons, priorities, leadership structures, understandings of safety and how intra-organizational decisions and actions could impact the collaborating organizations' work, were central triggers for discussion and negotiation. These differences required explanations in order to make the actions and decisions of one organization understandable and justifiable to another, based on organizational mandates and types of expertise.Giving emergency services the opportunity to work together, to develop an awareness of their expectations of each other in various situations, to use and interpret their own and others' terminologies, and to identify internal hierarchies and motives for prioritizations was essential dimensions of exercises

The presidial system was the focus for Spanish and Mexican military operations in northern New Spain. The Spanish established these garrisons to provide their settlers and missionaries protection from hostile indigenous tribes opposing expansion into their territories. Between 1692 and 1776, presidios were established on the Sonoran frontier at Fronteras, Terrenate, Horcasitas, Santa Cruz, Altar, Tubac, Bavispe, Bacoachi, and Tucson. The Spanish and Mexican governments never completely solved the problem of adequately supplying the Sonoran presidios with men and materials to achieve dominance over the native populations. These conditions left the presidios and civilian population exposed to attack and harrassment by hostile Indians. Examination of the major events concerning the presidios from 1790 to 1835, including the Apache pacification policies, establishment of "Indian" presidios, the Mexican war for independence, transfer from Spanish to Mexican control, and the study of presidial personnel, reveals how the presidio functioned as a major frontier institution.

De praktiker och föreställningar som hör samma med den magiska verkligheten under etiketten ”witchcraft” verkar öka i popularitet i dagens Afrika. Medan vissa postmoderna antropologer har tolkat fenomenet som en kritisk kommentar mot moderniseringsprocesser är det troligt att föreställningen om den magiska verkligheten kan göra anspråk på fler uttryck än så. Syftet med den här undersökningen är att analysera hur informanternas syn på andebesättelse i en Luo-dominerad kristen evangelisk församling i Kibera, kan tolkas utifrån vissa ekonomiska, sociala och kulturella processer. Jag undersöker hur andebesättelse kan förstås med hjälp av informanternas förhållande till och synen på hemmet, familjen, könsroller, staden, landsbygden, avundsjuka och framgång. I analysen tolkas informanternas föreställningar om andebesättelse utifrån rörelser mellan de kenyanska gränserna rikedom/fattigdom, stadsliv/landsbygd och offentligt/privat. Andebesättelse kan därefter förstås som en slags medlare mellan dessa gränser, där de som befinner sig mellan någon av dessa oppositioner tenderar att vara särskilt utsatta för andliga attacker. / The notion of witchcraft seems to grow in popularity in the contemporary Africa. While some postmodern anthropologists have interpreted the phenomenon as a critical commentary on the processes of modernization, it is likely to be able to claim more than that. The purpose of the thesis is to analyse the notion of spirit possession by the informants in a Luo dominated evangelical church in Kibera, and how it may be interpreted through certain economic, social and cultural processes. This is made by investigating the views on the home, family, gender roles, urban, rural, jealousy and prosperity. The informant’s notion of spirit possession is interpreted in the analyse as movements across the Kenyan boundaries of rural/urban, public/private and rich/poor. Spirit possession is understood as a mediator between these boundaries, and those who is found to be in between some of these oppositions tend to be most vulnerable to spirit attacks.

Bakgrund: Sedan mitten av 1900-talet har antalet internationella turister ökat kontinuerligt över hela världen. Samtidigt har flertalet nischade turismformer vuxit sig starka, en av dem är ekoturismen med dess miljöetiska förhållningssätt. Dock har tidigare forskning visat att turismindustrin är en bidragande faktor till den oacceptabla globala förändring vi står inför idag. Syfte och frågeställning: Syftet med denna studie är att identifiera ekoturismens effekter på miljön i relation till konceptet för jordens nio planetära gränser. Studien riktar sig till aktörer inom turismbranschen för att tillhandahålla kunskap om hur ekoturismen påverkar miljön. Med detta syfte i åtanke formulerades följande frågeställning: - Hur förhåller sig ekoturismens effekter på miljön till jordens nio planetära gränser? Metod: Genom en kvalitativ innehållsanalys, som presenteras i form av en kartläggning, ger studien en översiktlig bild av vad för typ av effekter ekoturismen har samt hur de förhåller sig till jordens nio planetära gränser. Uppsatsen har en deduktiv ansats, då den tar avstamp i teori rörande ekoturismens miljöetiska förhållningssätt. Detta testas sedan gentemot ett aktuellt och nyintroducerat koncept inom miljövetenskapen, för att identifiera eventuella effekter på miljön. Resultat och slutsats: Resultatet av vår studie visade att ekoturismens effekter på miljön både bidrog till en ökning och minskning av en eller flera planetära gränsers processer. Den slutsats vi kom fram till var således att ekoturismen har effekter som påverkar miljön. Dessutom upptäckte vi att den större delen av dem kan anses vara hållbara i förhållande till konceptet för jordens nio planetära gränser.

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Sigma 3 grain boundaries play a large role in the microstructure of fcc materials in general, and particularly so in grain boundary engineered materials. A recent survey of grain boundary properties revealed that many of these grain boundaries possess very large mobilities, and that these mobilities increase at lower temperature, contrary to typical models of thermallyactivated grain boundary motion. Such boundaries would have a tremendous mobility advantage over other boundaries at low temperature, which may explain some observed instances of abnormal grain growth at low temperature. This work explains the boundary structure and motion mechanism that allows for such mobilities, and explores several of the unique factors that must be considered when simulating the motion of these boundaries. The mobilities of a number of boundaries, both thermally-activated and antithermal, were then calculated over a wide temperature range, and several trends were identified that relate boundary crystallography to thermal behavior and mobility. An explanation of the difference in thermal behavior observed in sigma 3 boundaries is proposed based on differences in their dislocation structure.

Human activity and other events can cause environmental changes to the habitat of organisms. The environmental changes effect the vital rates for a population. In order to predict the impact of these environmental changes on populations, we use two different models for population dynamics. One simpler linear model that ignores environmental competition between individuals and another model that does not. Our population models take into consideration the age distribution of the population and thus takes into consideration the impact of demographics. This thesis generalize two theorems, one for each model, developed by Sonja Radosavljevic regarding long term upper and lower bounds of a population with periodic birth rate ; see [6] and [5]. The generalisation consist in including the case where the periodic part of the birth rate can be expressed with a finite Fourier series and also infinite Fourier series under some constraints. The old theorems only considers the case when the periodic part of the birth rate can be expressed with one cosine term. From the theorems we discover a connection between the frequency of oscillation and the effect on population growth. From this derived connection we conclude that periodical changing environments can have both positive and negative effects on the population.

The formation of state borders is often told through the history of war and diplomacy. What is neglected is the tale of how borders of seemingly peaceful and long-extant places were set. In drawing Egypt’s borders, nineteenth-century cartographers were drawing upon a well of knowledge that stretched back into antiquity. Relying on the works of Greco-Roman writers and the Bible itself, cartographers and explorers used the authority of these works to make sense of unfamiliar lands, regardless of any current circumstances. The border with Palestine was determined through the usage of the Old Testament, while classical scholars like Herodotus and Ptolemy set the southern border at the Cataracts. The ancient cartography of Rome was overlaid upon the Egypt of Muhammad Ali. Given the increasing importance Egypt had to the burgeoning British Empire of the nineteenth century, how did this mesh with the influences informing cartographical representations of Egypt? This study argues that the imagined spaces created by Western cartographers informed the trajectory of Britain’s eventual conquest of Egypt. While receding as geopolitical concerns took hold, the classical and biblical influences were nonetheless part of a larger trend of Orientalism that colored the way Westerners interacted with and treated the people of Egypt and the East. By examining the maps and the terminology employed by nineteenth century scholars on Egypt’s geography, a pattern emerges that highlights how much classical and biblical texts had on the Western imagination of Egypt as the modern terms eventually superseded them.

The evolution of materials at an atomistic level may have vital consequences for the properties of materials. Therefore, modelling long time scale behaviour of defects in a material is very important, particularly for those used in nuclear power plants. The materials used in nuclear power plants should have good mechanical properties to overcome the corrosive environment and high temperature. Examples of these materials are the austenitic stainless steel and the Ni-based alloys due to their high temperature properties. Molecular Dynamics (MD) and on the fly Kinetic Monte Carlo (otf-KMC) techniques have been used to model the radiation damage in austenitic stainless steel and the Ni-based alloys. This thesis represents the main findings obtained. Three potentials were implemented and used to study radiation damage in austenitic stainless steel. Structural properties such as the elastic constants for the point defects in the pure metals were first calculated. This was followed by calculating the formation energies and migration energies of vacancy and self interstitial defects in the pure metals. Different calculations were performed using each potential on the ternary alloy (Fe with 10 at.% Ni and 20 at.% Cr) and the binary alloy (Ni with 20 at.% Cr) . For example, the segregation in these alloys was investigated using Monte Carlo simulations and results obtained for both alloys at high temperature MD. Furthermore, the vacancy formation energies were calculated for both alloys using all the potentials. Radiation damage at Grain Boundaries (GBs) in fcc Ni and a Ni-Cr binary alloy has been studied using MD and otf-KMC techniques. From the results obtained, the mobility of interstitials were found to be higher than that of vacancies and tend to move quickly to the GB. Vacancies are found to migrate to the GB if they are near otherwise they tend to form clusters in the bulk. During the simulations, interesting mechanisms were observed for the point defects migration and recombinations. Large roughening at the GB was observed, especially in the alloy system and overall the total number of defects accumulated on the GB after multiple collision cascades were relatively small. The radiation in fcc Ni resulting from low energy collision cascades was also modelled using MD and otf-KMC techniques. This part of work aimed replicating the observations seen in experiment and trying to understand them. Recombinations between vacancies and interstitials were found to happen from large distances with low barriers. Most defects produced from low energy collision cascades were found to recombine or interstitials were found to form clusters. Modelling the evolution of the vacancies shows the possibility of producing Stacking Fault Tetrahedra (SFT) which were found to dissociate at 200°C.

The following thesis titled SPHERE OF INFLUENCE is about development. I discuss my efforts to develop as an artist addressing observation and awareness of the self and our surroundings. I will discuss how this relates to my approach with materials and process and will explain not only what the sculpture titled SPHERE OF INFLUENCE has come to represent for me, but also the reactions of viewers during the temporary installation of the SPHERE OF INFLUENCE at the Anderson Gallery at Virginia Commonwealth University from May 5th 2006 through May 14th, 2006. I will explain the SPHERE OF INFLENCE'S function as both an object meant to evoke an awareness of what and who surrounds its space and as a metaphor of my efforts to surpass personal and artistic boundaries.