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  • Andreas, Naess
    University of Skövde, School of Informatics.
    Var kommer myndigheters lösenordspolicys ifrån?: En kvalitativ studie om deras ursprung2019Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    Society is getting more digitalized and more people are connecting to the Internet. This means that a lot of work that handles sensitive information is now done using computers. There is also a lot of services that requires personal information for registration and bank account information to order wares or subscribe to the service. This information is of interest to criminal who can use it to make money. Because of this the use of passwords has increased and to make sure that strong passwords are created guidelines are adhered to. The password guidelines are created and spread by authorities and expert organizations. However, there are no sources for where the guidelines came from or an explanation for how they were made.

    To shine a light on this, the study aims to explain the guidelines origins and what they were based on. This is a qualitative study where interviews were done with information security specialists from three governmental bodies and one expert organization. After the interviews were completed and data collected, they were analyzed using thematic analysis to identify the sources that were used during the creation of the guidelines. The study’s results show that the motivation for the guidelines vary. This can be observed through the differences in target group and focus. It also appears like there are no studies which could be referred to. Although there is a consistent pattern that the sources for the guidelines often seems to be based on the experiences and expertise of their employees. Except for this, inspiration is also drawn from organizations such as NIST.

  • Cortés García, Daniel
    et al.
    University of Skövde, School of Engineering Science.
    Ruiz González, Álvaro
    University of Skövde, School of Engineering Science.
    Laser welding machine specification research2019Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This paper presents the technical specification of a laser welding machine, which main purpose is the weld of thin aluminium sheets. With the application of laser machines in automotive, aerospace, and other industries, it has become of crucial importance for a company working in those fields to keep updated with the technological progress. In this thesis, a deep research in laser machines and its applications has been done. The primary objective of this thesis is to gather knowledge about laser machines to help our client to find the machines they need. Among the several types of machines, the difference in the choice relied on which main type of industrial laser should be used: carbon dioxide (CO2) or neodymium-doped yttrium aluminium garnet (Nd: YAG). The second objective of this thesis is to find the best way to demand those machines to the procurers: to give detailed specifications to the procurers, or to give them just guidelines on what the machine must have and should have. The key results obtained from the research were that laser source to use is the Nd: YAG and that the most appropriate shielding gas is Argon. Therefore, in conclusion, the specifications stated in the table will help our client to acquire the laser machine they demand; as well as spending the money efficiently.

  • Ros García, Adrián
    et al.
    University of Skövde, School of Engineering Science.
    Bujalance Silva, Luis
    University of Skövde, School of Engineering Science.
    Laser welding for battery cells of hybrid vehicles2019Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The report is an overview article, as a result of our investigation at the field of laser welding applied to electromobility cells manufactured in an aluminium housing. This project was proposed by the University of Skövde in collaboration with ASSAR Centre. The key results presented are based on the study of the following parameters: laser type and power, shielding gases, welding modes, patterns and layout. The conclusions of the project define the final selection of each parameter in order to achieve minimum defects and optimal electrical performance by minimizing the contact resistance.

  • Ali, Muzdalifa
    University of Skövde, School of Informatics.
    Using dynamic programming and unsupervised learning to optimize material flow in assembly line  supermarket: A case study of Volvo Powertrain at Skövde2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Replenishment is an important process in automotive industries. It is the process by which parts required at assembly lines are stored and organized in assembly lines supermarket. Over many years replenishment have been done with the aim of positively impacting the varying demand frequency of articles in multi flows mixed-model assembly lines (MMALs) operating in just-in-time (JIT) fashion. However, a series of successive replenishment actions have negative impacts on the number of reallocation movements of parts within volume flows of supermarkets especially within a context of multi-flows supermarkets (MFSs). The cost of movements of parts within the supermarket has not been taken into consideration in previous replenishment methods. This is a significant problem since both un-optimized reallocation movements, and articles misplacement resolutions lead to production halts which cost assembly plants valuable time and money. Therefore, this research study proposes a replenishment method that optimizes flow of material within multi-flow assembly lines supermarkets and hence reduces the cost due to reallocation movement of multi-flow assembly lines supermarkets. The proposed method has been evaluated in the context of Volvo automobile engine assembly plant in Skövde. The proposed replenishment method has been evaluated by conducting an experiment using real-world data for the assembly plant in context. Performance metrics such as accuracy, F1-score, precision, sensitivity, and specificity were used to demonstrate the utility and validity of the proposed method. The evaluation results showed that the proposed method for optimizing material flow in supermarkets performed better than the existing method. In addition to utility, the proposed method provides contribution to knowledge by providing means for the industry to adopt replenishment method that takes into consideration the cost of reallocation movements of the parts within the supermarket. 

  • Issa Almashik, Ala
    University of Skövde, School of Health and Education.
    Samverkan mellan slutenvård och hemsjukvård: SAMSA och SIP - ett verktyg vid samverkan2019Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Bakgrund: Multisjuka äldre patienter har behov av kommunala hälso-sjukvårds insatser. Samverkan av dessa insatser sker via ett digitalt kommunikationssätt SAMSA. Planeringen inför hemgången sker mellan berörda aktörer där den ska genomföras under ett SIP-möte. Vårdandet utgår från att multisjuka äldre patient bör ge ett samtycke, därefter genomförs stegen i samverkansprocessen. Distriktssköterskors professionella roll utgår ifrån på att ge stöd och en trygg hemgång. Samverkan mellan berörda aktörer och planläggningen styrs av en ny lag om samverkan. Syfte: Belysa hur distriktssköterskor upplever arbetet utifrån den nya samverkanslagen vid utskrivningen av multisjuka äldre till hemmet. Metod: Med den kvalitativa forskningsintervjun samlades data in från fem distriktssköterskor. Data analyserades med kvalitativ innehållsanalys med induktiv ansats. Resultat: Ur analysen framträdde fyra kategorier: Samverkan vid utskrivningen, Digitala kommunikationssätt, Föränderliga utskrivningsdatum och Olika aktörer som är beroende av varandra. Konklusion: I resultatet framkommer att brist på information och dokumentation mellan berörda aktörer påverkan samverkan. Patienter och anhöriga upplever ofta brister i informationen från slutenvården. De digitala kommunikationssätten fungerar men är under inlärningstid. Det är viktigt med uppdateringen i systemet innan hemgång. Aktörerna bör ta sitt ansvar där alla kompletterar och inte ersätter varandra.

  • Irazu, Aitor
    et al.
    University of Skövde, School of Engineering Science.
    Uranga, Maider
    University of Skövde, School of Engineering Science.
    Design optimisation of a mechanism used to handle heavy objects2019Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This paper presents a design optimisation of a mechanism used to lift and turn heavy objects, in this case, a specific gear that weights 3000 kg. The objective pursued during the development of the project was to reduce the weight of the mechanism, and thus, make it more cost-efficient, as well as to improve the clamping system to secure that the heavy objects are safely handled. The method followed was to first identify the critical parts in cooperation with the client. Then, the corresponding analysis has been developed for each of those parts, by minimising the mass of two of them, and by selecting and dimensioning the guideways for the clamping motion in the other case. The key results obtained from these analyses were that the weight of one of the parts was reduced by 50 %, the clamping system was improved and that the stress analysis shows that the maximum stress is far below acceptable levels. Hence, it is concluded that it was possible to optimise the mechanism and reduce the weight, improving the handling of heavy objects.

  • Lundin, Zebastian
    University of Skövde, School of Bioscience.
    The Neural Correlates of Internet Addiction: Contextualized by a Comparison with ADHD2019Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    In everyday life, people are interacting with the Internet. The emergence of this phenomenon has been positively contributing to the rapid development of our society in the last decades. However, negative reports about excessive usage are coming to the surface and questions about potential negative consequences are being raised. Internet addiction (IA) has been suggestedas a new type of disorder. There is a new field of research emerging with the aim to investigate its nature. This review compiles the most relevant literature on neuroimaging techniques used to identify the underlying neurobiological mechanisms of IA. Based on identified comorbidity between IA and attention-deficit hyperactivity disorder (ADHD), a comparison between the neural correlates of IA and ADHD is attempted, in order to illustrate the importance of bringing more attention to IA. The findings present structural, functional and neurochemical alterations in brain regions associated with emotional processing, cognitive control and reward processing. Similarities between the two disorders interms of structural and functional alterations in regions associated with emotional processing and cognitive control are highlighted.Limitations regarding lack of consensus of the operational definition, narrow selection criteria of participants and a need for subcategories inside the term IA are pointed out. The thesis concludes that as of now the discovered alterations may be considered as biological markers underlying the disorder and IA is a field of research worthy of more attention.

  • Brundin, Malin
    University of Skövde, School of Bioscience.
    Binge Eating Disorder: Neural correlates and treatments2019Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    Binge eating disorder (BED) is the most prevalent of all eating disorders and is characterized by recurrent episodes of eating a large amount of food in the absence of control. There have been various kinds of research of BED, but the phenomenon remains poorly understood. This thesis reviews the results of research on BED to provide a synthetic view of the current general understanding on BED, as well as the neural correlates of the disorder and treatments. Research has so far identified several risk factors that may underlie the onset and maintenance of the disorder, such as emotion regulation deficits and body shape and weight concerns. However, neuroscientific research suggests that BED may characterize as an impulsive/compulsive disorder, with altered reward sensitivity and increased attentional biases towards food cues, as well as cognitive dysfunctions due to alterations in prefrontal, insular, and orbitofrontal cortices and the striatum. The same alterations as in addictive disorders. Genetic and animal studies have found changes in dopaminergic and opioidergic systems, which may contribute to the severities of the disorder. Research investigating neuroimaging and neuromodulation approaches as neural treatment, suggests that these are innovative tools that may modulate food-related reward processes and thereby suppress the binges. In order to predict treatment outcomes of BED, future studies need to further examine emotion regulation and the genetics of BED, the altered neurocircuitry of the disorder, as well as the role of neurotransmission networks relatedness to binge eating behavior.

  • Monteiro, Anita-Ann
    University of Skövde, School of Bioscience.
    Detection of exosomal mirna from different volumes of biofluids as biomarkers for the diagnosis of sepsis: Future diagnostics of sepsis2019Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Sepsis, a life-threatening condition which results from a dysregulation of host response to infection and leads to multiple organ dysfunction, is a cause for great concern. The current gold standard of detection – Blood culturing – is a highly time-consuming process and so, research has proposed the use of biomarkers. Current biomarkers, C-reactive protein and Procalcitonin, though good indicators, individually show certain limitations with respect to the specificity and sensitivity. Hence, as a step forward from singleplex biomarkers, the development of a multi-marker panel was suggested. For this purpose, the use of microRNAs (miRNAs) were employed to serve as potential biomarkers for the detection of sepsis. The aim of this study was to determine whether a higher concentration of miRNA would be obtained from a larger volume of plasma as well as to see if the miRNA present in blood can be used for the diagnosis of sepsis. Extractions were carried out using the QIAGEN exoRNeasy Plasma: Midi & Maxi Kits from plasma and Norgen’s Total RNA Purification Kit from blood. The samples were analysed and quantified using the Qubit® microRNA assay kit & Qubit® 3.0 Fluorometer and the NanoDrop™ 2000 Spectrophotometer. Statistical analysis of the results revealed that there was a significant difference between miRNA concentrations in the two volumes of plasma analysed. Based on the accurate Qubit measurements and readings, it was concluded that a larger volume of plasma, does yield a higher concentration of miRNA. In addition, it was also established that the miRNA detected in blood, could be used as probable biomarkers for the diagnosis of sepsis.

  • Morilla Cabello, David
    University of Skövde, School of Engineering Science.
    Vision Based Control for Industrial Robots: Research and implementation2019Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The automation revolution already helps in many tasks that are now performed by robots.  Increases in the complexity of problems regarding robot manipulators require new approaches or alternatives in order to solve them. This project comprises a research in different available software for implementing easy and fast visual servoing tasks controlling a robot manipulator. It focuses on out-of-the-box solutions. Then, the tools found are applied to implement a solution for controlling an arm from Universal Robots. The task is to follow a moving object on a plane with the robot manipulator. The research compares the most popular software, the state-of-the-art alternatives, especially in computer vision and also robot control. The implementation aims to be a proof of concept of a system divided by each functionality (computer vision, path generation and robot control) in order to allow software modularity and exchangeability. The results show various options for each system to take into consideration. The implementation is successfully completed, showing the efficiency of the alternatives examined. The chosen software is MATLAB and Simulink for computer vision and trajectory calculation interfacing with Robotic Operating System (ROS). ROS is used for controlling a UR3 arm using ros_control and ur_modern_driver packages.  Both the research and the implementation present a first approach for further applications and understanding over the current technologies for visual servoing tasks. These alternatives offer different easy, fast, and flexible methods to confront complex computer vision and robot control problems.

  • Postigo Peláez, Miguel Ángel
    University of Skövde, School of Bioscience.
    Construction of a Fusion Gene: to anchor a truncated version of the inflammatory receptor NLRP3 to the cell membrane2019Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Inflammasomes are a group of protein complex that regulate inflammation throughcomplex signal transduction, although their specific mechanisms and structures have notbeen fully described. As the protein that kickstarts assembly of a type of inflammasome,NLRP3 is a key regulator of inflammation and may play a relevant role in the developmentof inflammatory diseases. In this project it has been attempted to perform a Gene Fusionbetween a segment of NLRP3 and regions of Toll-Like Receptor 4 by means of overlapextensionPCR, a technique that employs hybrid primers to create an overlap between bothsequences that can be filled by a polymerase, causing them to merge. Results suggest GeneFusion was successful, however cloning and expression of the construct have not beenachieved so far. If expressed as a fusion protein, the added transmembrane domain willanchor two domains of NLRP3 to the membrane, allowing more precise study of thecomposition and functionality of the inflammasome. Removal of the terminal domain ofNLRP3 will help determine its implication and relevance in the assembly process of theprotein complex.

  • Dal, Johannes
    et al.
    University of Skövde, School of Business.
    Sassanian, Shahab
    University of Skövde, School of Business.
    Ansvarsfullt företagande och investeringar: En studie om tillverkande företag och investerares inställning till ansvarsfullt företagande och investeringar2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Sustainable development has become more important because the world has realized that changes are needed to protect the environment. It is essential that companies increasingly engage in long-term thinking and take responsibility for the environment. The aim of this study is to determine the approach manufacturing companies and investors have toward sustainability and sustainable investments. The theoretical frame of reference describes approaches within sustainable investments and various instruments within CSR. The study then introduces two theories: the legitimacy theory and the stakeholder theory. These theories can strengthen the CSR approaches in sustainable investments. The study consists of a qualitative research approach since the focus of the study is approaches within sustainability. Furthermore, interviews were conducted with seven different companies to gain views from companies active in different industries. In the empirical study, all seven interviewed companies are introduced and all the collected data is presented. To clarify the empirical study, each company is given its own section to highlight their approaches. The empirical study then presents the similarities and differences between manufacturing companies and investors regarding the research question. After the theory and the data were analyzed, the study concludes that companies relate to sustainability to meet stakeholder expectations. The manufacturing companies and investors work within sustainably as CSR has become an increasingly important area in the business world. A company must consider what the market and stakeholders demand in a sustainable market.

  • Uvnäs-Moberg, Kerstin
    et al.
    University of Agriculture (SLU), Uppsala, Sweden.
    Ekström-Bergström, Anette
    University of Skövde, School of Health and Education. University of Skövde, Health and Education. Department of Health Sciences, University West, Trollhättan, Sweden.
    Berg, Marie
    Institute of Health and Care Sciences, University of Gothenburg, Sweden / Centre for Person-Centred Care, University of Gothenburg, Sweden.
    Buckley, Sarah
    School of Public Health, University of Queensland, Brisbane, Australia.
    Pajalic, Zada
    Faculty of Health Sciences, Oslo and Akershus University, College of Applied Sciences, Oslo, Norway.
    Hadjigeorgiou, Eleni
    Faculty of Health Sciences, Cyprus, University of Technology, Limassol, Cyprus.
    Kotłowska, Alicja
    Faculty of Health Sciences with Subfaculty of Nursing, Institute of Maritime and Tropical Medicine, Medical University of Gdańsk, Gdańsk, Poland.
    Lengler, Luise
    Midwifery Research and Education Unit, Hannover Medical School, Hannover, Germany.
    Kielbratowska, Bogumila
    Faculty of Medical Sciences, Medical University of Gdańsk, Gdańsk, Poland.
    Leon-Larios, Fatima
    Faculty of Nursing, Physiotherapy and Podiatry, University of Seville, Seville, Spain.
    Magistretti, Claudia Meier
    Department of Social Work Center for Health Promotion and Social Participation, Lucerne University of Applied Sciences and Arts, Luzern, Switzerland.
    Downe, Soo
    Research in Childbirth and Health (ReaCH) Group, University of Central Lancashire, Preston, United Kingdom.
    Lindström, Bengt
    Norwegian University of Science and Technology, Trondheim, Norway.
    Dencker, Anna
    Institute of Health and Care Sciences, University of Gothenburg, Sweden / Centre for Person-Centred Care, University of Gothenburg, Sweden.
    Maternal plasma levels of oxytocin during physiological childbirth: A systematic review with implications for uterine contractions and central actions of oxytocin2019In: BMC Pregnancy and Childbirth, ISSN 1471-2393, E-ISSN 1471-2393, Vol. 19, no 1, article id 285Article, review/survey (Refereed)
    Abstract [en]

    Background: Oxytocin is a key hormone in childbirth, and synthetic oxytocin is widely administered to induce or speed labour. Due to lack of synthetized knowledge, we conducted a systematic review of maternal plasma levels of oxytocin during physiological childbirth, and in response to infusions of synthetic oxytocin, if reported in the included studies. Methods: An a priori protocol was designed and a systematic search was conducted in PubMed, CINAHL, and PsycINFO in October 2015. Search hits were screened on title and abstract after duplicates were removed (n = 4039), 69 articles were examined in full-text and 20 papers met inclusion criteria. As the articles differed in design and methodology used for analysis of oxytocin levels, a narrative synthesis was created and the material was categorised according to effects. Results: Basal levels of oxytocin increased 3-4-fold during pregnancy. Pulses of oxytocin occurred with increasing frequency, duration, and amplitude, from late pregnancy through labour, reaching a maximum of 3 pulses/10 min towards the end of labour. There was a maximal 3- to 4-fold rise in oxytocin at birth. Oxytocin pulses also occurred in the third stage of labour associated with placental expulsion. Oxytocin peaks during labour did not correlate in time with individual uterine contractions, suggesting additional mechanisms in the control of contractions. Oxytocin levels were also raised in the cerebrospinal fluid during labour, indicating that oxytocin is released into the brain, as well as into the circulation. Oxytocin released into the brain induces beneficial adaptive effects during birth and postpartum. Oxytocin levels following infusion of synthetic oxytocin up to 10 mU/min were similar to oxytocin levels in physiological labour. Oxytocin levels doubled in response to doubling of the rate of infusion of synthetic oxytocin. Conclusions: Plasma oxytocin levels increase gradually during pregnancy, and during the first and second stages of labour, with increasing size and frequency of pulses of oxytocin. A large pulse of oxytocin occurs with birth. Oxytocin in the circulation stimulates uterine contractions and oxytocin released within the brain influences maternal physiology and behaviour during birth. Oxytocin given as an infusion does not cross into the mother's brain because of the blood brain barrier and does not influence brain function in the same way as oxytocin during normal labour does. 

  • Akl, Ziad
    et al.
    School of Health Sciences, Örebro University, Sweden / Youth Association for Social Awareness- YASA, Lebanon.
    Akl, Mona
    Youth Association for Social Awareness- YASA, Lebanon.
    Eriksson, Charli
    School of Health Sciences, Örebro University, Sweden.
    Gifford, Mervyn
    School of Health Sciences, Örebro University, Sweden.
    Dalal, Koustuv
    University of Skövde, School of Health and Education. University of Skövde, Health and Education. Higher School of Public Health, Al-Farabi Kazakh National University, Almaty, Kazakhstan.
    Evaluating seat belt use in Lebanon (1997-2017)2019In: Open Public Health Journal, ISSN 1874-9445, Vol. 12, no 1, p. 127-135Article in journal (Refereed)
    Abstract [en]

    Introduction: The use of seat belts has made a significant contribution to the reduction of road traffic casualties, and the risk inherent with not wearing seat belts in all seats of a vehicle is now well-known worldwide. The use of seat belts has a major role in reducing fatal and nonfatal injuries in all types of motor-vehicles crashes. Aim: The aim of this study is to understand the reasons behind the variation in seat belt use over the past two decades in Lebanon. It analyzes the situation and suggests recommendations to improve seat belt use in Lebanon. Design: Nine observational studies had been conducted in Lebanon during the last two decades between 1997 and 2017, and one qualitative study was performed in 2017. Results: The results show a significant variation in the use of the seat belt. When enforcement efforts are in progress, seat belt use increases. While when there are no checkpoints and the enforcement of seat belt use is almost absent, a significant fall was noticed. Discussion: The results of this study proved the failure of the Lebanese government in saving hundreds of lives just by a simple measure of enforcing seat belt law. Although experiences from various countries prove that such laws usually have a long-lasting effect on seat belt use, Lebanon failed to pursue the successful implementation of this law due to security and political problems. Conclusion: During the past two decades, Lebanon witnessed continuous fluctuations in seat belt use. Outside few short enforcement campaigns, our observations showed lack in seat belt use. Our observations of seat belt use among drivers and front seat passengers showed a significant correlation between seat belt use and the enforcement of seat belt law. The greatest national benefits from seat belt use are obtained when wearing rates are very high. This can be achieved only through a sustained enforcement campaign alongside other seat belt wearing interventions such as publicity and education. © 2019 Open Public Health Journal. All rights reserved.

  • Jilani, Hannah
    et al.
    Leibniz Institute for Prevention Research and Epidemiology—BIPS, Germany / Institute for Public Health and Nursing Science, University of Bremen, Germany.
    Pohlabeln, Hermann
    Leibniz Institute for Prevention Research and Epidemiology—BIPS, Germany.
    De Henauw, Stefaan
    Department of Public Health, Ghent University, Belgium.
    Eiben, Gabriele
    University of Skövde, School of Health and Education. University of Skövde, Health and Education.
    Hunsberger, Monica
    Department of Public Health and Community Medicine, University of Gothenburg, Sweden.
    Molnar, Denes
    Department of Pediatrics, Medical School, University of Pécs, Hungary.
    Moreno, Luis A.
    GENUD (Growth, Exercise, Nutrition and Development) Research Group, Faculty of Health Sciences, University of Zaragoza, Spain.
    Pala, Valeria
    Department of Research, Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Italy.
    Russo, Paola
    Institute of Food Sciences, National Research Council, Italy.
    Solea, Antonia
    Research and Education Institute of Child Health, Cyprus.
    Veidebaum, Toomas
    Department of Chronic Diseases, National Institute for Health Development, Estonia.
    Ahrens, Wolfgang
    Leibniz Institute for Prevention Research and Epidemiology—BIPS, Germany / Institute of Statistics, Faculty of Mathematics and Computer Science, University of Bremen, Germany.
    Hebestreit, Antje
    Leibniz Institute for Prevention Research and Epidemiology—BIPS, Germany.
    Relative Validity of a Food and Beverage Preference Questionnaire to Characterize Taste Phenotypes in Children Adolescents and Adults2019In: Nutrients, ISSN 2072-6643, E-ISSN 2072-6643, Vol. 11, no 7, article id 1453Article in journal (Refereed)
    Abstract [en]

    To assess the relative validity of our food and beverage preference questionnaire we investigated the association between sweet and fatty taste preference scores (assessed using a food and beverage preference questionnaire) and sweet and fatty food propensity scores (derived from a food frequency questionnaire). In I.Family, a large European multi-country cohort study, 12,207 participants from Cyprus, Estonia, Germany, Hungary, Italy, Spain and Sweden, including 5291 adults, 3082 adolescents, and 3834 children, completed a food and beverage preference questionnaire with 63 items. Cumulative preference scores for sweet and fatty taste were calculated from the single item ranking ranging from 1 to 5. The relative consumption frequency of foods classified as sweet and fatty was used to calculate the corresponding consumption propensities, a continuous variable ranging from 0 to 100. We conducted regression analyses to investigate the association between sweet and fatty taste preference scores and sweet and fatty food propensity scores, respectively, separately for adults, adolescents >= 12 years, and for children <12 years. The overall sweet taste preference score was positively associated with the sweet food consumption propensity score (beta = 2.4, 95% CI: 2.1;2.7) and the fatty taste preference score was positively associated with the fatty food consumption propensity score (beta = 2.0, 95% CI: 1.8;2.2). After stratification for age (children <12 years, adolescents >= 12 years, and adults), the effect remained significant in all age groups and was strongest in adolescents and adults. We conclude that our food and beverage preference questionnaire is a useful instrument for epidemiological studies on sensory perception and health outcomes and for the characterization of sensory taste phenotypes.

  • Hoyos Rodriguez, David
    University of Skövde, School of Engineering Science.
    Realistic Computer aided design: model of an exoskeleton2019Independent thesis Advanced level (degree of Master (One Year)), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    The musculoskeletal disorders have significant health care, social and economic consequences in the factories nowadays. One of the most promising possible solutions is the use of exoskeletons in the workstations. Exoskeletons are assistive wearable robotics connected to the body of a person, which aims to give mechanical power or mobility to the user (Wang, Ikuma, Hondzinski, & de Queiroz, 2017).

    The objective of this project is to create a realistic CAD model of a passive exoskeleton which will be used in future research to analyse the behaviour of the workers in a virtual environment with and without the exoskeleton. This model will be a virtual representation of the exoskeleton EKSOVest which has been designed to support these workers who have to realize overhead tasks. This virtual representation will be carried out in PTC CREO and exported to IPS IMMA in order to check the viability of this model. To achieve a realistic model, the exoskeleton should have the same characteristics than the real exoskeleton. The objectives of this project will be defined for these characteristics, which are part creation, mechanisms, forces simulation, and parametrization. The parts and the mechanisms will be created and defined in PTC CREO with the same dimensions and behaviour as the real exoskeleton. Furthermore, this report will be focussed mainly in force simulation and the parametrization.

    The forces of the EKSOVest are generated by two different spring and by a high-pressure spring. To simulate these forces, the equation of these springs will be obtained and introduced in PTC CREO. These equations will be obtained through the regression of a set of points, which will be obtained from the real exoskeleton using a dynamometer. The parametrization will be carried out with the objective to make the virtual model adaptable for every type of mannequins. This parametrization will modify the length of the exoskeleton’s spine bar and the distance between the mechanical arms. These distances will be adapted according to the mannequin’s measures which will be introduced by the user. The measures that have to be introduced by the user are shoulder height, liac spine height, and chest width.

    In conclusion, it can be said that the regression of the springs obtained are an accurate result which can imitate quite well the forces of this exoskeleton. Furthermore, the results of the parametrization allow the exoskeleton adaptable to any type of dimensions that the mannequin could have. The final model obtained has been exported to IPS IMMA and implemented in a mannequin.

  • Mahmoud, Sara
    et al.
    University of Skövde, School of Informatics. University of Skövde, The Informatics Research Centre.
    Svensson, Henrik
    University of Skövde, School of Informatics. University of Skövde, The Informatics Research Centre.
    Self-driving cars learn by imagination2018In: Proceedings of the 14th SweCog Conference / [ed] Tom Ziemke, Mattias Arvola, Nils Dahlbäck, Erik Billing, Skövde: University of Skövde , 2018, p. 12-15Conference paper (Refereed)
  • Engström, Henrik
    University of Skövde, School of Informatics. University of Skövde, The Informatics Research Centre.
    GDC vs. DiGRA: Gaps in Game Production Research2019In: DiGRA '19 - Proceedings of the 2019 DiGRA International Conference: Game, Play and the Emerging Ludo-Mix / [ed] Akinori Nakamura, 2019Conference paper (Refereed)
    Abstract [en]

    Previous studies have revealed a gap between game research and industry game production. This article presents an analysis of this research gap using the tracks and summits at the Game Developers Conference (GDC) as a point of reference. The result shows that there are several areas where there exists very little research. The DiGRA conference is no exception – since 2006, only a handful of papers present empirics from game production. Studies are in particular rare for content producing areas, such as audio, visual arts, and narrative. There are plenty of opportunities for researchers to extract experiences and knowledge from game professionals and to identify problems to be addressed. To do this, collaboration models need to be established that endure non-disclosure agreements and crunch cultures.

  • Nordén, Astrid
    et al.
    University of Skövde, School of Business.
    Wanner, Louise
    University of Skövde, School of Business.
    Hur en kvantitativ urvalsmetod kan generera i kvalitativa rekryteringar: En studie om arbetspsykologiska tester2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background: Personnel planning is a strategic function that involves, among other things, comprehension about that staff and skills that exist in the organization. Organizations today focus on making the social life revisable, which could be a reason for using quantitative selection methods in recruitment. In relation to this, there is some criticism about using a qualitative method since subjectivity in gathering information is not considered desirable. The credibility and validity in work related psychological testing, which is a rational selection method, are questioned since the view of quantification of the candidate's attributes is divided. Therefore, it is of interest to increase the understanding of the function and practical use of work related psychological testing, the significance of contextual understanding as well as how other factors affect its validity.

    Purpose: To gain a greater understanding of how the rational selection method, work related psychological testing, is used as a tool in the recruitment process. By constructing a perspective that highlights the complexity of both decision making and personality, this essay also aims to examine the function of the method in the practical recruitment work.

    Method: In this qualitative study, eight semi-structured interviews with test leaders have been conducted to gain a deeper insight into the function of testing in the practical work. In addition to this, a model of three dimensions of work related psychological testing are presented and set the framework for the structure of the essay.

    Conclusion: The function of the tests is dependent on its purpose and approach considering when and how the test is used. Mental ability testing is an effective and fair method to strive for objectivity in the first selection where minimum requirements exist. Personality tests can be a tool to understand the candidate's conditions rather than creating a complete image of the candidate’s traits.

  • Morina, Adela
    et al.
    University of Skövde, School of Business.
    Bavcic, Alma
    University of Skövde, School of Business.
    Medarbetarens uppfattning av att arbeta i en självstyrande grupp: En studie om självstyrande grupper med utgångspunkt från den kommunala hemtjänsten2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Research describes that leadership and employeeship are at both important phenomenon. Despite this indication, the interest and knowledge of leadership is much wider than the knowledge of employeeship (Tengblad, 2009). Unlike previous research, this study will focus on the employee's perception of the phenomenon of autonomous groups. The authors of this study acknowledged a lack of research related to autonomous groups from an employee perspective. This led to a commitment to the study's purpose, which is based on creating a deeper understanding of autonomous groups from an employee perspective. The purpose of the study is to create a deeper understanding of autonomous groups, from an employee perspective. The authors of this study also wanted to recognize the advantages and disadvantages that can arise for employees in an autonomous group.This study will also contribute with an understanding of the advantages and disadvantages that can arise for employees in an autonomous group. The specificorganization that has been investigated is Jönköping kommun, of which autonomous groups are commonly used. Employees in a specific group of caregivers for elderly people are the main focus for this study.The study has an abductive approach where the datacollection is obtained through a qualitative method. This enables the understanding of the most important aspects of autonomous groups. It also captures the employees perceptions in order to get a clearer picture of this working method. The interesting thing in this study is to see autonomous groups from the perspective of the employee. Does the employee feel that there are any advantages or disadvantages within an autonomous group? How do we define what an autonomous group really is?It appears that employees do not relate to being a autonomous group in practice. The interesting thing is that previous studies and research show that the concept is interpreted differently by organizations and a few definitions have been written down on paper. This creates problems because there are different perceptions about the meaning of what autonomous groups really are (Frandsen, et al., 2000). The result of the study has presented newly emerging concepts related to autonomous groups from an employee perspective. The employees define themselves as a codetermination group before being an autonomous group. The working method of the group is primarily characterized by affective work and control. 4The results of this study also presents that leadership and employeeship have a connection with regards to autonomous groups.

  • Larsson, Viktor
    University of Skövde, School of Informatics.
    Lättanvänd palleteringsapplikation: Applicering av gränssnittsdesign för äldre2019Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Studiens syfte var att undersöka om ett gränssnitt som utformats för äldre, med sina krav på tydlighet och enkelhet, också skulle kunna vara lämpat för att skapa god återanvändbarhet och gissningsbarhet för sällananvändare av ett gränssnitt. Två gränssnitt jämförs i studien, där en skapad applikation jämförs med en kopia av applikationen, där den enda ändringen som skedde var tillägget av viss gränssnittsdesign för äldre, baserad på tidigare forskning. Undersökningen utfördes på fyra teknikvana och fyra mindre teknikvana personer, baserat på ATI-skalan, där två från varje grupp fick använda applikationen med gränssnittsdesign för äldre och två från varje grupp fick använda applikationen utan gränssnittsdesign för äldre. Resultatet av undersökningen ligger i linje med studiens forskningsbakgrund. Denna undersökning indikerade resultat på en ökad tydlighet i flera moment, men undersökningen visade nästan bara förbättringar i tydlighet för de mindre teknikvana testpersonerna. Mer teknikvana användare klarade av att använda båda applikationerna nästan lika bra, med gränssnittsdesign för äldre, som utan. Resultatet antyder att de förändringar som gjorts i färg, fontstorlek, kontrast, språk- och funktionsmässigt gav en ökad tydlighet som gjorde att de mindre teknikvana testpersonerna lättare kunde uppfatta funktioner och överlag hade mindre problem vid användandet av applikationen.

  • Babawi, Sadeer
    et al.
    University of Skövde, School of Business.
    Güner, Johannes
    University of Skövde, School of Business.
    DIGITALISERING INOM BANKSEKTORN: Hur uppfattar svenska storbanker och FinTech bolag de möjligheter och hot som uppkommer i samband med den ökande digitaliseringen?2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Introduction: A big part of the Swedish economy rests on the shoulders of the Swedish bank sector. Because of the increasing digitalization in recent times, the difference in competition has become substantially more evident and it has received a completely new starting point compared to before. The newest and most recent additions to the competition within the banking sector are examples such as FinTech companies, international banks and other parties that are also starting to compete with the big Swedish banks for market shares.

    Purpose and problem formulation: The purpose of this study is to describe the way the big Swedish banks and FinTech companies perceive the different opportunities and threats related to the increased digitalization that we see today. This will allow us to try and create an understanding of what the future might look like and what has already changed within the banking sector ever since the introduction of digitalization. How do the big Swedish banks and FinTech companies perceive the different opportunities and threats related to the increased digitalization?

    Theoretical frame of reference: The theories that have been used during the study are isomorphism with the notion of compelling, imitating and normative isomorphism as well as Porter's strategy theory, the five force model. A SWOT analysis has been used to more easily identify the banks' strengths, weaknesses, opportunities and threats during the digitization. The study has also used previous research and taken into account the quest for legitimacy and demands for cost efficiency. This has become a support for the empirical results that have been collected in order to be able to analyze more easily, reach a conclusion and thus get the problem formulation answered.

    Method: The empirical material has been collected with a qualitative method. 5 informants have participated in semi-structured interviews.

    Conclusion: The authors of the study have identified, described and explained several factors as to how they perceive opportunities and threats during the increasing digitization. The informants shared both opportunities and threats, such as the fact that the PSD2 regulations increase competition and improve the situation for smaller players to compete against the big banks. The study has also been limited to big Swedish banks and FinTech companies.