<p>This thesis treats two different projects, both aiming at experimental tests at hadron colliders of some specific predictions of the Standard Model (SM) of particle physics and of its Minimal Supersymmetric extension (MSSM). The thesis is based on four papers.</p><p>Papers I-III study the discovery potential for a heavy charged Higgs boson of the ATLAS experiment at the Large Hadron Collider (LHC). Charged Higgs bosons are part of the Higgs sector in many extensions to the SM and their detection would be an unambiguous sign of new physics.</p><p>If the charged Higgs boson is heavier than the top quark, its dominant decay mode is into a top and a bottom quark. Searches in this decay channel at ATLAS are difficult mainly due to the large top-quark pair-production background. The possible gain obtained when requiring 4 b-tagged jets for the signal events is studied, but no significant improvement compared to an analysis requiring 3 b-tagged jets is found.</p><p>If the masses of supersymmetric particles are sufficiently small, heavy charged Higgs bosons can decay into a chargino-neutralino pair. We show that in this decay channel charged Higgs bosons can be detected, given a favourable choice of parameters governing the MSSM.</p><p>In a large-mass-splitting MSSM scenario, the charged Higgs decay into a W boson and a neutral Higgs can have a large branching fraction. We conclude, however, that charged Higgs searches in this decay channel are made difficult by a large, irreducible SM background.</p><p>Paper IV describes a measurement of the top-quark pair production cross-section performed with the DØ detector at the Tevatron collider. Signal events in the muon+jets decay channel are selected using topological event characteristics and a preliminary result of σ(ttbar)=3.8 +1.1-1.1(stat) +0.9-0.8(syst) +0.3-0.2(lumi) pb is obtained using an integrated luminosity of 363/pb.</p>

Los territorios locales y regionales son una “producción social” a partir de la interacción entre agentes que poseen intereses, lógicas y estrategias diversas y que actúan desde diversas escalas de la realidad. Esto suele obviarse cuando se habla de políticas de desarrollo territorial, como si éstas operasen en campos sociales vacíos. En América Latina y Chile existe un déficit (inter)disciplinario que abra una socio-economía política de lo territorial. Ella es clave, además, para analizar las viabilidades de sociedades locales con protagonismo de sus agentes más enraizados en los territorios, en cuanto medio de vida y trabajo. El recorrido por las teorías y conceptos que han destacado el lugar ocupado por determinados agentes como estructurantes de los territorios subnacionales muestra una diversidad de aproximaciones, así como de espacios y tiempos históricos que han servido de referencia. Un período especial es la de los últimos decenios, en que se constituye un importante debate acerca del peso y las relaciones que tienen los agentes globales, nacionales y locales en las dinámicas territoriales. Los estudios de territorios -las ciudades chilenas de Valdivia, Temuco y Arica- permiten visualizar el juego denso de agentes que va imprimiendo el movimiento de lo local: grupos globales exportadores; cadenas nacionales e internacionales de comercio y servicios; distintos expresiones sectoriales del Estado y sus niveles centrales, regionales y locales; diversos grupos medios diferenciados en ideologías e intereses; instituciones como universidades, iglesias, partidos políticos y Ongs; agentes populares como el sindicalismo, micro-empresariado popular, grupos vecinales; y manifestaciones étnicas. Entre ellos median relaciones de conflicto, de cooperación o fragmentaciones. Estas ocurren marcadas por una envoltura histórica que expresa la singularidad de cada ciudad construida en el tiempo. En esa dinámica se va revelando el poder aumentado de grandes agentes privados, pero también el de los agentes para empujar una gobernancia local para un desarrollo endógeno y democrático. / La thèse a pour objectif de faire un apport à l'étude et à la compréhension des sociétés locales. Cet objectif naquit de la constatation d'une certaine rareté de ce type d'analyses au Chili en contraste par rapport a la prédominance d'un discours normatif que mettais en avant l'idée de la nécessite de la décentralisation. La question centrale qui a orienté la recherche fut : « qui sont les agents qui produisent les réalités locales ». Comme prémisse dans ma recherche je soutenais que le local est constitue par en ensemble d'agents différents de par leurs intérêts, logiques et stratégies. La action et l'interaction entre ces agents, constituant la scène sociopolitique locale. Un objectif parallèle à ma thèse, lie à l'antérieur, fut de contribuer à la réflexion sur les possibilités d'un développement endogène au niveau des territoires locaux. Ceci, compris comme un développement qui a un haut degré de protagonisme de la part des agents qui font de ce territoire leur lieu de vie et de travail, en particulier les agents populaires. Ceci comme une manière de mieux articuler développement et démocratie.

Ce manuscrit décrit mon travail de thèse au sein de l'expérience CMS du collisioneur LHC. Il présente les deux sujets sur lesquels j'ai travaillé : un sujet orienté détecteur et un sujet orienté analyse de données. Le premier sujet, orienté détecteur, se situe dans le cadre du projet HL-LHC qui prévoit une augmentation de la luminosité instantanée d'un facteur cinq. Une telle augmentation et la conservation du système de haut niveau du déclenchement (HLT), engendre de nouvelles contraintes sur le détecteur CMS. Notamment au niveau du système de déclenchement électronique. La collaboration CMS envisage d'implanter ce dernier au sein du détecteur de traces. La méthode des mémoires associatives est proposée. Elle nécessite toutefois une présélection intelligente des signaux électriques pour être utilisable. La méthode de la largeur des amas est proposée pour présélectionner les signaux. L'optimisation de cette méthode, en particulier des paramètres géométriques des modules et des seuils appliqués pour la présélection des signaux électrique, est le résultat de mon travail. Il est détaillé tout au long de la partie III de ce manuscrit. Le deuxième sujet concerne l'analyse des données récoltées par CMS durant l'année 2011. Cette analyse a pour objectif de rechercher de nouvelles particules dans le spectre de masse invariante top anti-top. De par sa grande masse, proche de la brisure électrofaible, le quark top joue un rôle prépondérant dans de nombreuses extensions du Modèle Standard. L'observation de résonances étroites dans le spectre pourrait en être le signe. L'analyse est subdivisée en trois parties : la sélection des évènements top anti-top, la reconstruction de la masse invariante top anti-top et une étude statistique pour quantifier la présence de nouvelle physique. Les résultats de ce travail sont des limites sur la section efficace de production de nouvelles particules. Ils sont présentés dans la partie IV du manuscrit.

The market for digital TV is developing and some industry actors focus on interactive TV. Interactive content and services that previously only were able to use through a standard PC are now available to use through the TV set. To distribute the services to the TV a so called set top box with broadband connection needs to be used. Such a box can be described as a unit where a standard PC and a digital TV receptor are integrated. This thesis aims to investigate the market for electronic payment solutions with a focus on payment for interactive content and services in digital TV. The presumptive services are many which lead to a relative complex analysis of how they should be paid for. What kind of service is it really to be paid for? In order to conduct an appropriate analysis this thesis contains an identification of five different service-/content types. The grouping we have conducted is in so called On Demand services, Voice over IP, Shopping, Interactive TV and web services. In order to be able to conduct a relevant assessment of how the distributed services should be paid for the understanding of the market situation is utterly important. Therefore the thesis contains a pre study of the different market actors that can be related to a set top box and interactive TV. The study of eight different actors on the Swedish market provides an overview of content providers’ as well as payment companies’ view on how interactive content and services should be paid for. The result from the thesis is a recommendation on how an electronic payment solution should be designed and important aspects to think of. One of the key outcomes is that different services needs different types of payment solutions which implies that you should first decide on what type of services that are to be provided before a decision is made on the payment solution. A byproduct from the thesis is the analysis model that facilitates analysis of services as well as payment solutions and - methods related to electronic payments and interactive media.

This thesis treats two different projects, both aiming at experimental tests at hadron colliders of some specific predictions of the Standard Model (SM) of particle physics and of its Minimal Supersymmetric extension (MSSM). The thesis is based on four papers. Papers I-III study the discovery potential for a heavy charged Higgs boson of the ATLAS experiment at the Large Hadron Collider (LHC). Charged Higgs bosons are part of the Higgs sector in many extensions to the SM and their detection would be an unambiguous sign of new physics. If the charged Higgs boson is heavier than the top quark, its dominant decay mode is into a top and a bottom quark. Searches in this decay channel at ATLAS are difficult mainly due to the large top-quark pair-production background. The possible gain obtained when requiring 4 b-tagged jets for the signal events is studied, but no significant improvement compared to an analysis requiring 3 b-tagged jets is found. If the masses of supersymmetric particles are sufficiently small, heavy charged Higgs bosons can decay into a chargino-neutralino pair. We show that in this decay channel charged Higgs bosons can be detected, given a favourable choice of parameters governing the MSSM. In a large-mass-splitting MSSM scenario, the charged Higgs decay into a W boson and a neutral Higgs can have a large branching fraction. We conclude, however, that charged Higgs searches in this decay channel are made difficult by a large, irreducible SM background. Paper IV describes a measurement of the top-quark pair production cross-section performed with the DØ detector at the Tevatron collider. Signal events in the muon+jets decay channel are selected using topological event characteristics and a preliminary result of σ(ttbar)=3.8 +1.1-1.1(stat) +0.9-0.8(syst) +0.3-0.2(lumi) pb is obtained using an integrated luminosity of 363/pb.

An influence at one trophic level can result in dynamic impacts also on other components of a food web. These dynamics are known as trophic cascades, and can be both top-down and bottom-up. After a near-collapse of the Baltic cod Gadus morhua stock in the 1980s, its main prey sprat Sprattus sprattus increased dramatically. The main food of sprat, marine copepods, decreased during the same time period, likely a combined effect of increased predation pressure from sprat and decreasing salinities. This shortage of food for sprat resulted in decreasing quality of sprat as a food source for common guillemots Uria aalge. However, a recent increase in fishing for sprat has again resulted in better feeding conditions for guillemots. Human impacts on this simple food web can be complex. In the early 20th century, marine mammals were abundant and nutrient levels were low in the Baltic Sea. This thesis illustrate that this situation corresponded to lower fish biomass. A reduction of seals early in the century led to reduced top-down control, which resulted in increasing fish stocks. Later, in the 1950s, the largest inflow of salt water during the century mobilized accumulated phosphorus from the deep sediments, which stimulated nitrogen fixation. Combined with increasing anthropogenic nutrient loads, this led to increased primary production and a rapid change from an oligotrophic to a eutrophicated state. This change can be termed a regime shift, which also stimulated fish production. Subsequent over-fishing of cod likely caused a second regime shift, from a cod- to a clupeid- dominated state, which led to the described effects on the common guillemots. Several factors affect the life-history of this long-lived seabird. Bycatches in gillnet fisheries is one factor directly affecting guillemot survival, and the proportion of bycatches increased during a period of increasing fishing effort. Surprisingly, avian cholera, a previously undocumented disease in common guillemots, was found at times to cause considerable adult mortality. Common guillemot life-history information can communicate the diversity of factors influencing marine ecosystems – hopefully this can increase our understanding of how complex even "simple" food webs are.

Datum: 2009-06-30 Författare: Rönnlund Josefin Nivå/utbildning: Master Thesis, Management Handledare: Owe R. Hedström Titel: How to keep with the War for talent? A comparative study between talent management in Company X and literature suggestions for identification of talent Problem: The need for talent management and a company's assets in form of Human Capital creates the demand of consultant firms and their services. The problem for companies today is to keep their up with the war for talented workers, and the way leadership talent is managed in the company is crucial for gaining competitive advantage. The research problem in my study is to identify how companies can manage talent within their organization successfully and by doing a research within a specific company, compare findings in their different organizational levels. Syfte: To investigate talent management processes in one company known for their success in the area of talent management and compare different views on talent management that might exist in different levels. My paper aims to value their talent management processes, and if there are gaps that could be filled and methods that could be developed. Metod: Qualitative method through six interviews and by doing a comparison between empirical findings and theory Resultat/slutsatser: talent management processes are very well developed in this business line in Company X, and in some areas they are even better than what literature suggests. They need to keep encouraging their personnel to take challenges and rotate. They also need to have a clear understanding of the roles in the organization, the responsibility of top recruitment and development. The areas that are in need of further development are leadership development, learning and training. Even if they have grasped the importance of these factors, they have some difficulties implementing right methods for reaching their targets. The company should encourage their employees to take challenges to be able to discover who can learn the most from them. Sökord: talent management, key personnel, high flyers, top performers, human resource and human capital management, identification of potential, talent development and high performers. Omfång, sidor: 82 Antal ref/källor: 43

In today’s society there is an ongoing debate concerning gender distribution amongst the top executives and there is a clear distinction between the men and women in leading positions. The reason for this can be because men and women to a certain degree conduct leadership differently. It is said that men are more focused on task oriented leadership while women seem to focus on a relation oriented and more interactive leadership. A leader’s success could be due to his or her ability to set up and use a network. Through professional networks a leader can get in touch with other people with similar life and work conditions and therefore this study was conducted to examine what effects the professional female network has contributed in the career developments of female top executives? To answer the question the study begins with the collections of theoretical knowledge concerning the subject followed with in-depth interviews from picturing the real world. With the help of four female top executives, who all are active in the professional female network, empirical data could be collected to be compared with the theoretical references. The study showed that the professional female network had no major impact on the career advancement with the female top executives but that on the other hand it contributed to the personal development. For women the work realm and the private realm are closely interconnected which means that family situations have constitute a problem for career advancement for female top executives. The opportunities female top executives encounter lies on the fact of being a woman as they then stand out on the claimed gender distribution.

L’esperienza estetica è un fenomeno complesso e articolato, caratterizzato da un particolare intreccio di processi percettivi, emotivi, cognitivi. Il dibattito sulla definizione del ruolo dei fattori che intervengono nell’esperienza estetica è molto controverso: diverse cornici teoriche enfatizzano o il ruolo dei fattori "bottom-up", riguardanti le caratteristiche visive e strutturali dell'opera d'arte come il colore e simmetria, o il ruolo dei fattori "top-down", relativi al bagaglio di conoscenze ed esperienze personali. Questa tesi presenta due studi volti ad approfondire, attraverso l'analisi dei movimenti oculari, l'influenza dei processi "bottom-up" e "top-down" sul comportamento visivo di adolescenti o adulti non esperti d’arte durante l'osservazione di opere d’arte pittorica. I dati ottenuti suggeriscono che processi intersoggettivi e relazionali giocano un ruolo essenziale nel guidare l’apprezzamento estetico di un quadro. Questi risultati innovativi supportano alcune recenti ipotesi teoriche relative alla natura intrinsecamente intersoggettiva dell’esperienza estetica. / Experiencing art is a complex and articulated phenomenon characterized by a peculiar weaving of perceptive, emotional, and cognitive processes. The debate on the definition of factors that contribute to the surfacing of an aesthetic experience is very controversial, partly because of the different weights assigned to the elements in the competition between “bottom-up” and “top-down” processes. Different theoretical frames emphasize the role of bottom-up factors - concerning the visual and structural characteristics of the artwork such as colour and symmetry - or top-down cognitive processes - concerning the cognitive feedback deriving from everyone’s cultural background and knowledge - in the building up of an aesthetic experience. In this work, two studies aiming at shedding some light on art appreciation are presented. These studies were designed to investigate, by means of the analysis of eye-movements, the influence of bottom-up and top-down processes on visual behavior while adolescents or adults naïve to art criticism were presented with representational paintings. Data suggest that intersubjective and relational processes intervene in first stages of aesthetic experience. These important and novel results support new theoretical proposals, which consider embodied intersubjective processes underpinning aesthetic experience.

Risk management has become an important topic for financial institutes, especially since the business sector of financial services is related to conditions of uncertainty. The turmoil of the financial industry emphasizes the importance of effective risk management procedures. Consequently, this thesis studies “What are the critical success factors for effective risk management procedures in financial industries?” This research question was formulated in order to gain a better understanding of risk management procedures and to examine the critical success factors for effective risk management procedures. To explore the importance of critical success factors in a practical context, we used the quantitative method of a self-completion questionnaire in order to collect data from a selection of financial institutions in Thailand. Financial institutions include banks, the stock exchange, insurance, stock securities, asset management and so on. Due to the fact that top-level management is directly responsible for risk management, the target groups included a range of positions from supervisors to board of directors. This research found a set of seven critical success factors which can be used as a guideline on how to increase the effectiveness of risk management procedures. These factors are (1). Commitment and support from top management, (2) Communication, (3) Culture, (4) Information technology (IT), (5) Organization structure, (6) Training and (7) Trust. Because risk management is an important part of the financial industry, effectiveness is vital to increase project success. These seven factors can increase the effectiveness of risk management procedures from the perspective of the financial industry in Thailand.