In this study we wanted to compare how history teachers working in various stages in the compulsory school and high school bring history to life through artifacts and narrations and how it differed based on the students’ cognitive maturity. We also studied how the combination of artifacts, role-playing games and stories can affect students’ learning of history. Semi-structured interviews with five teachers ranging from middle school up to high school were implemented and we coded the results through materialistic and narrative theories. Our findings conclude that authentic artifacts are rarely used because teachers do not have the resources to administer them. Instead photographs and generated artifacts are most used. Narrations in the form of stories and role-playing games are used to help students understand how history is used today and to help the students understand past actors in their own contexts. Our research also shows that popular history is present in history education because teachers believe it is engaging for the students. Popular themes such as the Viking-age and the World Wars are easier for the students to engage with. Therefore, narratives from popular historical themes are easier to bring to life in history education. The higher the education, the more abstract use of history brought to life. In our findings we concluded that when history was brought to life in middle school education it was to make learning more entertaining. In the higher stages it was used to bring actual artifacts as tools to work with abstract didactical themes such as uses of history and critical analysis of sources. This correlates with the cognitive maturity of the students’ ages. Combined, artifacts and narrations give a more holistic view of the past since it provided multimodal teaching opportunities for the students regarding their historical empathy and historical understanding.

Complex realistic human motion sequences satisfying environmental constraints can be created by motion capture, which is a reliable way to reproduce human motions. However, motion capture data is difficult to modify in order to obtain variant motion sequences for multiple tasks. In this thesis, a system for synthesizing complex realistic human motion sequences based on a small group of sample motions to satisfy constraints is proposed. Methods are proposed for the system to preprocesses raw motion capture data to create sample motions that can be easily modified for the purpose of meeting specific requirements, while maintaining the subtleties of the origin motion capture data. Methods for the system to scan user-input constraints, to choose the best sample motion and synthesize the motion sequence based on route affected by the constraint are also proposed. Each generated motion piece is blended with the default motion, and thus a motion sequence composed of several pieces of motion based on constraints will be generated. Artifacts that arise during motion generation are identified and handled properly. Experimental results will show that the system can create cyclical sample motions from motion capture data, generate motion pieces based on environmental constraints, and synthesize complex realistic human motion sequences.

[pt] O presente estudo tem como objetivo compreender como os colaboradores de áreas administrativas da Petrobras entendem o papel das soluções de software na execução de suas rotinas. Para tanto, teve como campo de análise as rotinas organizacionais de empregados da Petrobras que atuam em áreas corporativas. A pesquisa procurou compreender o papel das soluções de software na execução das rotinas de acordo com o relato de indivíduos que as executam. A abordagem geral do presente estudo parte de uma perspectiva interpretativista (SANDBERG, 2000). A partir do método fenomenográfico (AKERLIND, 2005; MARTON, 1981), o uso de soluções de software na execução foi analisado com base na experiência vivida pelos empregados. Como resultado das 20 entrevistas realizadas entre novembro de 2020 e maio de 2021, tratadas e analisadas, descobriu-se que os sujeitos entrevistados compreendem o uso de soluções de software no desempenho de suas rotinas em três categorias descritivas: i) como um repositório de informações, ii) como organizador da rotina e iii) como meio de redução da interferência humana na execução das rotinas. Estas formas apresentaram quatro dimensões de explicação: i) elemento estrutural da rotina; ii) gestão do conhecimento e relação entre atores; iii) performance de execução; e iv) segurança e confiabilidade das informações. / [en] The objective of the present study is to conceive how Petrobras s administrative employees understand the role of software solutions on executing their organizational routines. For this purpose, had as field of analysis organizational routines from employees that works in administrative areas. The research sought to understand the role that software solutions have on the execution of organizational routines according to the individuals who perform them. The general approach of the present study starts from a interpretative perspective (SANDBERG, 2000). From the phenomenography method (AKERLIND, 2005; MARTON, 1981), the use of software solutions on executing organizational routines was analyzed based on the experience of the employees. As result of 20 interviews performed between November 2020 and May 2021, and then treated and analyzed, it turned out that the subjects interviewed understand the use of software solutions on their organizational routines in three different categories: i) as an information repository, ii) as a routine organizer and iii) as a mean to reduce human interference on routine execution. These categories presented four explanatory dimensions: i) structural element of the routine; ii) knowledge management and relationship between actors; iii) execution performance; and iv) information security and reliability.

Modern Automatic Blood Pressure Measurement Techniques are based on measuring the cuff pressure and on sensing the pulsatile amplitude variations. These measurements are very sensitive to motion of the patient or the surroundings where the patient is. The slightest unexpected movements could offset the readings of the automatic Blood Pressure meter by a large amount or render the readings totally meaningless. Every effort must be taken to avoid subjecting the body of the patient or the patient's surroundings to motion for obtaining a reliable reading. But there are situations in which we need Blood Pressure Measurements with the patient or his surroundings in motion; for instance in an ambulance while a patient is being transported to a hospital. In this thesis, we present a technique to reduce the effect of motion artifact from Blood Pressure measurements. We digitize the blood pressure waveform and use Digital Signal Processing Techniques to process the corrupted waveform. We use the differences in frequency spectra of the Blood Pressure signal and motion artifact noise to remove the motion artifact noise. The motion artifact noise spectrum is not very well defined, since it may consist of many different frequency components depending on the kind of motion. The Blood Pressure signal is more or less a periodic signal. That translates to periodicity in the frequency domain. Hence, we designed a digital filter that could take advantage of the periodic nature of the Blood Pressure Signal waveform. The filter is shaped like a comb with periodic peaks around the signal frequency components. Further processing of the filtered signal: baseline restoration and level shifting help us to further reduce the noise corruption.

The purpose of the study is to investigate preschool teachers' views on the learning environment as a tool for interaction and learning. The study is based on a qualitative study, where we have chosen to interview four preschool teachers based on a semi-structured interview method, this to get an insight into their thoughts, opinions and experiences. We feel that there are shortcomings in the discussion about the learning environment as a tool based on our experience, which is why we chose to investigate active preschool teachers' views on this. The study is based on a sociocultural perspective to highlight the learning that takes place in interaction with the environment you are in.  The results of the study show that preschool teachers look at the learning environment as a foundation in preschool, especially for learning and interaction. The preschool teachers describe that they therefore work actively with the learning environments based on the resources they have. The results show that the preschool is given different conditions for developing the learning environments to stimulate and inspire the children. Some conclusions are presented and one of them is how learning and interaction are affected depending on the structure of the learning environment. The study shows that various factors are involved in influencing the preschool teacher's work.

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