The current dissertation provides an examination of health information technology (HIT) by analyzing big datasets. It contains two separate essays focused on: (1) the evolving intellectual structure of the healthcare informatics (HI) and healthcare IT (HIT) scholarly communities, and (2) the impact of social support exchange embedded in social interactions on health promotion outcomes associated with online health community use. Overall, this dissertation extends current theories by applying a unique combination of methods (natural language processing, machine learning, social network analysis, and structural equation modeling etc.) to the analyses of primary datasets. The goal of the first study is to obtain a full understanding of the underlying dynamics of the intellectual structures of HI and its sub-discipline HIT. Using multiple statistical methods including citation and co-citation analysis, social network analysis (SNA), and latent semantic analysis (LSA), this essay shows how HIT research has emerged in IS journals and distinguished itself from the larger HI context. The research themes, intellectual leadership, cohesion of these themes and networks of researchers, and journal presence revealed in our longitudinal intellectual structure analyses foretell how, in particular, these HI and HIT fields have evolved to date and also how they could evolve in the future. Our findings identify which research streams are central (versus peripheral) and which are cohesive (as opposed to disparate). Suggestions for vibrant areas of future research emerge from our analysis. The second part of the dissertation focuses on comprehensively understanding the effect of social support exchange in online health communities on individual members’ health promotion outcomes. This study examines the effectiveness of online consumer-to-consumer social support exchange on health promotion outcomes via analyses of big health data. Based on previous research, we propose a conceptual framework which integrates social capital theory and social support theory in the context of online health communities and test it through a quantitative field study and multiple analyses of a big online health community dataset. Specifically, natural language processing and machine learning techniques are utilized to automate content analysis of digital trace data. This research not only extends current theories of social support exchange in online health communities, but also sheds light on the design and management of such communities.

In this thesis, an error analysis based method is proposed to calculate single shot hit probability (PSSH) values of a fire control system. The proposed method considers that a weapon and a threat are located in three dimensional space. They may or may not have relative motion in three dimensions with respect to each other. The method accounts for the changes in environmental conditions. It is applicable in modeling and simulation as well as in top down design of a fire control system to reduce the design cost. The proposed method is applied to a specific fire control system and it is observed that PSSH values highly depend on the distance between the weapon and the threat, hence they are time varying. Monte Carlo simulation is used to model various defense scenarios in order to evaluate a heuristic developed by G&uuml / lez (2007) for weapon-threat assignment and scheduling of weapons&rsquo / shots. The heuristic uses the proposed method for PSSH and time of flight computation. It is observed that the difference between the results of simulation and heuristic depends on the scenario used.

In this thesis, mathematical modeling and heuristic approaches are developed for surface-to-air weapon-target allocation problem with time varying single shot hit probabilities (SSHP) against linearly approaching threats. First, a nonlinear mathematical model for the problem is formulated to maximize sum of the weighted survival probabilities of assets to be defended. Next, nonlinear objective function and constraints are linearized. Time varying SSHP values are approximated with appropriate closed forms and adapted to the linear model obtained. This model is tested on different scenarios and results are compared with those of the original nonlinear model. It is observed that the linear model is solved much faster than the nonlinear model and produces reasonably good solutions. It is inferred from the solutions of both models that engagements should be made as late as possible, when the threats are closer to the weapons, to have SSHP values higher. A construction heuristic is developed based on this scheme. An improvement heuristic that uses the solution of the construction heuristic is also proposed. Finally, all methods are tested on forty defense scenarios. Two fastest solution methods, the linear model and the construction heuristic, are compared on a large scenario and proposed as appropriate solution techniques for the weapon-target allocation problems.

Generating samples from multivariate distributions efficiently is an important task in Monte Carlo integration and many other stochastic simulation problems. Markov chain Monte Carlo has been shown to be very efficient compared to "conventional methods", especially when many dimensions are involved. In this article we propose a Hit-and-Run sampler in combination with the Ratio-of-Uniforms method. We show that it is well suited for an algorithm to generate points from quite arbitrary distributions, which include all log-concave distributions. The algorithm works automatically in the sense that only the mode (or an approximation of it) and an oracle is required, i.e., a subroutine that returns the value of the density function at any point x. We show that the number of evaluations of the density increases slowly with dimension. An implementation of these algorithms in C is available from the <a href="http://statmath.wu-wien.ac.at/software/hitro/">authors</a>. (author's abstract) / Series: Research Report Series / Department of Statistics and Mathematics

Title: Analysis of percentage representation and success of various kinds of offensive hits in beach volleyball The aim of the work: The aim of the thesis is to find out the percentage success and representation of various offensive hits in the FIVB Beach volleyball World Tour series of men and women teams. Method: The research method was the observation of 24 videos during which I wrote down the necessary data in to a specially prepared chart. By observation and wrote down in to the chart has been gained necessary data for evaluation. Results: The results present the success and representaiton of various offensive hits in the men and women categories. They are summarized in text and charts. In addition, the results informed about the proportions of beach volleyball spike hits and beach volleyball technicals hits, or about representation of blocked offensive hits. The results also including comparison of individual performance levels in FIVB World Tour. Keywords: Beach volleyball, FIVB World Tour, offensive hit, hits analysis, gender comparsion

Communication is a fundamental social component of human life and constitutes an indispensable factor in the learning process as it allows the transfer of information between people. Communication supports the interactions that take place in different learning stages and settings and can encourage involvement and cooperation. The "Treasure-HIT" platform, a dedicated environment for designing pedagogical mobile location-based games, encourages social interaction and collaborative learning. This platform, which is social at its base, has limited communication capabilities. Adding such capabilities can overcome this difficulty by providing a more supportive and interpersonal interaction among the involved stakeholders. This thesis explores the users' communication needs for the preparation and enactment of "Treasure-HIT" activities. A design based research was used to analyze the needs in terms of design and technological specifications and develop and implement communication features. Three such features were developed in the course of this thesis: (1) Activities based map, (2) Social media sharing feature (Facebook tasks) and (3) Image gallery. All of those aimed at supporting communication between learners, instructors and their community, before, during and after the activities. Findings show that the developed capabilities enabled new means of communication and contributed to the user experience and learning process. Users appreciated the functionality and ease of use and positively adopted the new features.

The overall purpose of this project is to develop a cross-platform CPR (cardiopulmonary resuscitation) application mainly for iOS and Android devices. This application aims to guide healthcare workers in the different processes and expected medication during cardiac arrest, which can often be a fast-paced and stressful scenario. The application will need to provide time-based and previous action-based recommendations for following medication and steps. Each step taken as well as at what time it was performed will also need to be documented automatically through the usage of the application.  This application is implemented using the framework React Native. Facebook developed React Native in 2015 targeting mobile application development. The base structure of React Native is based on React, a JavaScript library released in 2013 used to build web interfaces. React Native allows creation of mobile applications that can run on iOS and Android devices with a single codebase.  This project resulted in a mobile application capable of running on both iOS and Android platforms. The application has enough functionality to be used in a simulation for the CPR procedure during a cardiac arrest rescue scenario. / Det övergripande syftet med detta projekt är att utveckla en cross-platform HLR (hjärt- och lungräddnings) applikation främst för iOS och Android enheter. Syftet med denna applikation är att hänvisa sjukvårdspersonal genom de olika processer och den förväntade medicineringen vid hjärtstopp, vilket ofta kan vara ett väldigt hög tempo och stressfyllt scenario. Applikationen kommer behöva ge tidsbaserade och tidigare åtgärds baserade rekommendationer för följande medicinering och steg. Varje steg  som tas samt när de tas kommer även behöva dokumenteras automatiskt genom användandet av applikationen.  Denna applikation implementeras med hjälp av ramverket React Native. Facebook utvecklade React Native 2015 med inriktning på mobilapplikationsutveckling. Bas strukturen hos React Native är baserad på React, ett JavaScript bibliotek släppt 2013 som används till att bygga webbgränssnitt. React Native tillåter skapande av mobilapplikationer som kan användas på iOS och Android enheter med en enda kodbas.  Detta projekt resulterade i en mobilapplikation kapabel att köras på både iOS och Android plattformar. Denna applikation har tillräcklig funktionalitet att användas i en simulering för HLR proceduren under ett hjärtstopps scenario.

This research proposes a framework for collaborative care in which the performance of healthcare teams is measured in an objective and quantifiable manner. We call our framework the Performance Management Framework for Collaborative Care (PMFCC). The PMFCC was developed using insights from agile software engineering, business, and healthcare and consists of three Components: the Collaboration Space Ontology Template, the Agile Process Model, and the Performance Management Model. We developed a set of example Artifacts based on our framework to better support performance management of collaborative care teams: Agile Treatment Plan, Agile Collaborative Dashboard, ICF Patient Card and Collaborative Care Model Canvas. The framework and associated Artifacts were developed iteratively using Design Science Research Methodology. Attention Deficit Hyperactivity Disorder was used as an example relevant to performance management of collaborative care teams. A Clinical Vignette drawn from the healthcare literature was used to develop a set of scenarios to test and evaluate the PMFCC and its Artifacts at each iteration. A panel of experts was established at the end of our research to review our results and provide structured and unstructured feedback based on a set of evaluation criteria drawn from the relevant academic literature. The PMFCC was also compared to related works from the literature.

The thesis "Popular Music in Television Entertainment in 90's in Czech Republic" is mainly engaged in the development of music show in this period, namely monitors developments of hit-parades Medúza and Eso. The period of 90's can be talk like a top of this kind of shows that have been an integral part of television entertainment. In connection with their development this study also deals with the history of these formats prior to 1989 and with the period context. The complexity of the topic also forms the theoretical basis in which work is about notions of popular culture, mass and consumer culture and globalization. The concept of globalization is closely related to the developement of television programs. Globalization is going through all the basic components of the production of these programs, both music and the television environment itself, and is just a possible consequence of the decline in the popularity of television hit-parades today. Keywords Television entertainment, popular music, format in TV, music show, hit-parade

Bakgrund: I Sverige pågår för närvarande stora projekt för att utforma och införa framtidens vårdinformationssystem. Dessa system utvecklas för att effektivisera hälso- och sjukvårdens processer och IT-miljöer. Elektroniska patientjournalsystem är den mest använda typen av vårdinformationssystem. Andra exempel är system för prover och svar, patientadministration och läkemedelsförskrivning. Trots att vårdinformationssystem har visat sig kunna bidra till ökad patientsäkerhet och kvalitet har implementering av nya system i hälso- och sjukvården en historia av att ofta misslyckas. Enligt ramverket Technology, People, Organizations and Macroenvironmental factors (TPOM), påverkar ett antal områden hur väl implementering av vårdinformationssystem faller ut.  Sjuksköterskor är den största legitimerade yrkeskåren inom hälso- och sjukvård. De ansvarar för omvårdnaden av en individ och hela dennes situation vilket bidrar till att sjuksköterskor är de som använder vårdinformationssystem mest frekvent. För att bidra till lyckad utveckling, implementering och förvaltning av vårdinformationssystem behöver sjuksköterskors upplevelser av utmaningar och möjligheter med vårdinformationssystem och vårddokumentation beskrivas.   Syfte: Studiens syfte är att beskriva sjuksköterskors upplevelser av utmaningar och möjligheter med vårdinformationssystem och vårddokumentation utifrån tekniska, personliga, organisatoriska och samhälleliga områden.  Metod: Kvalitativa semistrukturerade intervjuer genomfördes med tio legitimerade sjuksköterskor från olika verksamheter. Analys av insamlad data skedde genom kvalitativ innehållsanalys med deduktiv ansats utifrån huvudkategorierna i ramverket TPOM.  Resultat: Utmaningar och möjligheter inom områdena teknik, person, organisation och samhälle identifierades och beskrevs. Totalt tio subkategorier identifierades under huvudkategorierna. Respondenternas upplevelser av liknande utmaningar och möjligheter oavsett arbetsplats och vårdinformationssystem tyder på att resultatet kan appliceras och tas i beaktande vid utveckling, implementering och förvaltning oavsett vårdinformationssystem. / Background: Currently in Sweden, there are a number of ongoing extensive projects aiming towards development and adoption of futures’ health information technology (HIT). These systems are formed to make the processes and IT environment of health care more effective. Electronic health records are the most used type of health information technology. Other examples are systems for laboratory testing, patient administration and prescription of medications. Even though HIT has proven to contribute to effectiveness and quality of care, the implementations of such systems has a history of failing. According to the Technology, People, Organizations and Macroenvironmental factors framework (TPOM), a number of dimensions has an impact to determine the success of HIT implementation.  Nurses are the largest group of registered health care practitioners in Sweden. Nursing care include caring for the individual in whole, which leads to nurses extensive, and frequent use of HIT. To contribute to successful development, implementation and continuous management of HIT, nurses’ experiences of challenges and possibilities in HIT and documentation must be described further.  Aim: This study aims to describe nurses’ experiences of challenges and possibilities in Health information technology and documentation in the perspective of Technology, People, Organizations and Macroenvironmental factors.  Method: Qualitative, semistructured interviews was conducted with ten registered nurses coming from different types of care. Data was analyzed based on deductive approached qualitative content analysis, using the TPOM framework.  Results: Challenges and possibilites within technology, people, organizations and macroenvironmental domains were identified and described. A total of ten subcategories were identified. The respondendts experienced similar challenges and possibilites, regardless of workplace and health information technology. This implicates that the result of this study might be considered in development, implementation and management of HIT.