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  • 1.
    Aaberg, Oddveig Reiersdal
    et al.
    Norwegian Univ Sci & Technol, Dept Hlth Sci, Fac Med & Hlth Sci, Teknologivegen 22, N-2815 Gjovik, Norway.;Univ Stavanger, Dept Qual & Hlth Technol, Fac Hlth Sci, Stavanger, Norway.;Univ Agder, Fac Hlth & Sport Sci, Dept Hlth & Nursing Sci, Norway..
    Ballangrud, Randi
    Norwegian Univ Sci & Technol, Dept Hlth Sci, Fac Med & Hlth Sci, Teknologivegen 22, N-2815 Gjovik, Norway..
    Husebo, Sissel Iren Eikeland
    Univ Stavanger, Dept Qual & Hlth Technol, Fac Hlth Sci, Stavanger, Norway.;Stavanger Univ Hosp, Gerd Ragna Bloch Thorsens Gate 8, N-4011 Stavanger, Norway..
    Hall-Lord, Marie Louise
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013).
    An interprofessional team training intervention with an implementation phase in a surgical ward: A controlled quasi-experimental study2019In: Journal of Interprofessional Care, ISSN 1356-1820, E-ISSN 1469-9567, p. 1-10Article in journal (Refereed)
    Abstract [en]

    Despite a growing awareness of the importance of interprofessional teamwork in relation to patient safety, many hospital units lack effective teamwork. The aim of this study was to explore if an interprofessional teamwork intervention in a surgical ward changed the healthcare personnel's perceptions of patient safety culture, perceptions of teamwork, and attitudes toward teamwork over 12 months. Healthcare personnel from surgical wards at two hospitals participated in a controlled quasi-experimental study. The intervention consisted of six hours of TeamSTEPPS team training and 12 months for the implementation of teamwork tools and strategies. The data collection was conducted among the healthcare personnel in the intervention group and the control group at baseline and at the end of the 12 month study period. The results within the intervention group showed that there were significantly improved scores in three of 12 patient safety culture dimensions and in three of five perceptions of teamwork dimensions after 12 months. When comparing between groups, significant differences were found in three patient safety culture measures in favor of the intervention group. The results of the study suggest that the teamwork intervention had a positive impact on patient safety culture and teamwork in the surgical ward.

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  • 2.
    Aaberg, Oddveig Reiersdal
    et al.
    University Agder, NOR;Norwegian University of Science & Technology, NOR ; University of Stavanger, NOR..
    Hall-Lord, Marie Louise
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013). Norwegian University of Science & Technology, NOR.
    Husebo, Sissel Iren Eikeland
    University Stavanger, NOR; Stavanger University Hospital, NOR .
    Ballangrud, Randi
    Norwegian University of Science & Technology, NOR.
    A human factors intervention in a hospital-evaluating the outcome of a TeamSTEPPS program in a surgical ward2021In: BMC Health Services Research, E-ISSN 1472-6963, Vol. 21, no 1, article id 114Article in journal (Refereed)
    Abstract [en]

    Background: Patient safety in hospitals is being jeopardized, since too many patients experience adverse events. Most of these adverse events arise from human factors, such as inefficient teamwork and communication failures, and the incidence of adverse events is greatest in the surgical area. Previous research has shown the effect of team training on patient safety culture and on different areas of teamwork. Limited research has investigated teamwork in surgical wards. The aim of this study was to evaluate the professional and organizational outcomes of a team training intervention among healthcare professionals in a surgical ward after 6 and 12 months. Systems Engineering Initiative for Patient Safety 2.0 was used as a conceptual framework for the study. Methods: This study had a pre-post design with measurements at baseline and after 6 and 12 months of intervention. The intervention was conducted in a urology and gastrointestinal surgery ward in Norway, and the study site was selected based on convenience and the leaders' willingness to participate in the project. Survey data from healthcare professionals were used to evaluate the intervention. The organizational outcomes were measured by the unit-based sections of the Hospital Survey of Patient Safety Culture Questionnaire, and professional outcomes were measured by the TeamSTEPPS Teamwork Perceptions Questionnaire and the Collaboration and Satisfaction about Care Decisions in Teams Questionnaire. A paired t-test, a Wilcoxon signed-rank test, a generalized linear mixed model and linear regression analysis were used to analyze the data. Results: After 6 months, improvements were found in organizational outcomes in two patient safety dimensions. After 12 months, improvements were found in both organizational and professional outcomes, and these improvements occurred in three patient safety culture dimensions and in three teamwork dimensions. Furthermore, the results showed that one of the significant improved teamwork dimensions "Mutual Support" was associated with the Patient Safety Grade, after 12 months of intervention. Conclusion: These results demonstrate that the team training program had effect after 12 months of intervention. Future studies with larger sample sizes and stronger study designs are necessary to examine the causal effect of a team training intervention in this context.

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  • 3.
    Aaberg, Oddveig Reiersdal
    et al.
    Norwegian University of Science and Technology, Norway; University of Stavanger, Norway.
    Hall-Lord, Marie Louise
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013). Norwegian University of Science and Technology, Norway.
    Husebo, Sissel Iren Eikeland
    University of Stavanger, Norway; Stavanger University Hospital, Norway.
    Ballangrud, Randi
    Norwegian University of Science and Technology, Norway.
    Collaboration and Satisfaction About Care Decisions in Team questionnaire: Psychometric testing of the Norwegian version, and hospital healthcare personnel perceptions across hospital units2019In: Nursing Open, E-ISSN 2054-1058, Vol. 6, no 2, p. 642-650Article in journal (Refereed)
    Abstract [en]

    Aim To translate "The Collaboration and Satisfaction About Care Decisions in Team" questionnaire (CSACD-T) into Norwegian and test it for psychometric properties. The further aim was to describe and compare healthcare personnel's collaboration and satisfaction about team decision-making (TDM) across hospital units. Design A cross-sectional study. Methods The questionnaire was translated into Norwegian. A total of 247 healthcare personnel at two hospitals responded to the questionnaire. An explorative factor analysis was performed to test the factor structure of the questionnaire, while a Cronbach's alpha analysis was used to test for internal consistency. A one-way ANOVA analysis and a Kruskal-Wallis test were applied to test for differences between hospital units. Results The results demonstrate that the Norwegian version of the CSACD-T has promising psychometric properties regarding construct validity and internal consistency. The mean score of the CSACD-T was significantly higher in the maternity ward group than in the emergency room group.

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  • 4.
    Aasberg, Pål
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences (from 2013).
    Energilager i en överdimensioneradvindkraftspark: En linjäroptimering av batterilager i kombination medintermittenta förnybara energikällor2022Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    A linear optimization has been made to examine the economic viabilityof incorporating battery storage in a wind farm in Sweden. The studyexamines a future wind farm with 10 10 MW turbines. An orographicmapping with height differences and vegetation has been used incombination with measured wind data with IEC-rated anemometersand wind direction sensors between 1997 and 2017 to create asimulated production in the windPRO software. This effect, togetherwith hourly prices from 2021 from Nord pool in SE1, SE2, SE3, SE4and in Estonia, has been used in a linear optimization in Matlab to findthe battery capacity that generates the most revenue. 3 Scenarios areinvestigated where scenario 1 is a wind farm without battery storagewhere all electricity produced is sold directly at the current price.Scenario 2 also lacks battery storage and has a power limit of 75 MWat the transformer whilst the farm still produces 100 MW. Scenario 3has a power limit of 75 MW at the transformer and the possibility ofbattery storage.

  • 5.
    Abas, Naeem
    et al.
    University of Gujrat, Hafiz Hayat Campus, Pakistan.
    Kalair, Ali Raza
    COMSATS University Islamabad, Pakistan.
    Seyedmahmoudian, Mehdi
    Swinburne University, Australia.
    Naqvi, Muhammad
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences (from 2013).
    Campana, Pietro Elia
    Mälardalen University, Sweden.
    Khan, Nasrullah
    COMSATS University Islamabad, Pakistan.
    Dynamic simulation of solar water heating system using supercritical CO2 as mediating fluid under sub-zero temperature conditions2019In: Applied Thermal Engineering, ISSN 1359-4311, E-ISSN 1873-5606, Vol. 161, article id 114152Article in journal (Refereed)
    Abstract [en]

    CO2 is becoming increasingly important as a mediating fluid, and simulation studies are indispensable for corresponding developments. In this study, a simulation-based performance investigation of a solar water heating system using CO2 as a mediating fluid under sub-zero temperature condition is performed using the TRNSYS (R) software. The maximum performance is achieved at a solar savings fraction of 0.83 during July. The as lowest solar savingss fraction of 0.41 is obtained during December. The annual heat production of the proposed system under Fargo climate is estimated to be about 2545 kWh. An evacuated glass tube solar collector is designed, fabricated and tested for various climate conditions. Moreover, a detailed comparison of the system's performance at sub/supercritical and supercritical pressures shows that the annual heat transfer efficiency of the modeled system is 10% higher at supercritical pressure than at sub/supercritical pressures. This result can be attributd to the strong convection flow of CO2 caused by density inhomogeneities, especially in the near critical region. This condition resuls in high heat transfer rates.

  • 6.
    Abascal, Angela
    et al.
    University of Navarra, Spain; University of Twente, Netherlands.
    Georganos, Stefanos
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Environmental and Life Sciences (from 2013).
    Kuffer, Monika
    University of Twente, Netherlands.
    Vanhuysse, Sabine
    Université libre de Bruxelles (ULB), Belgium.
    Thomson, Dana
    University of Twente, Netherlands.
    Wang, Jon
    University of Twente, Netherlands.
    Manyasi, Lawrence
    Community Researcher Non-affiliated, Nairobi, Kenya.
    Otunga, Daniel Manyasi
    Community Researcher Single Mother Association of Kenya, Nairobi, Kenya.
    Ochieng, Brighton
    Community Researcher Non-affiliated, Nairobi, Kenya.
    Ochieng, Treva
    Community Researcher Non-affiliated, Nairobi, Kenya.
    Klinnert, Jorge
    University of Maryland, USA.
    Wolff, Eléonore
    Université libre de Bruxelles (ULB), Belgium.
    Making Urban Slum Population Visible: Citizens and Satellites to Reinforce Slum Censuses2024In: Urban Inequalities from Space: Earth Observation Applications in the Majority World / [ed] Monika Kuffer, Stefanos Georganos, Springer, 2024, Vol. 26, p. 287-302Chapter in book (Refereed)
    Abstract [en]

    In response to the “Leave No One Behind” principle (the central promise of the 2030 Agenda for Sustainable Development), reliable estimate of the total number of citizens living in slums is urgently needed but not available for some of the most vulnerable communities. Not having a reliable estimate of the number of poor urban dwellers limits evidence-based decision-making for proper resource allocation in the fight against urban inequalities. From a geographical perspective, urban population distribution maps in many low- and middle-income cities are most often derived from outdated or unreliable census data disaggregated by coarse administrative units. Moreover, slum populations are presented as aggregated within bigger administrative areas, leading to a large diffuse in the estimates. Existing global and open population databases provide homogeneously disaggregated information (i.e. in a spatial grid), but they mostly rely on census data to generate their estimates, so they do not provide additional information on the slum population. While a few studies have focused on bottom-up geospatial models for slum population mapping using survey data, geospatial covariates, and earth observation imagery, there is still a significant gap in methodological approaches for producing precise estimates within slums. To address this issue, we designed a pilot experiment to explore new avenues. We conducted this study in the slums of Nairobi, where we collected in situ data together with slum dwellers using a novel data collection protocol. Our results show that the combination of satellite imagery with in situ data collected by citizen science paves the way for generalisable, gridded estimates of slum populations. Furthermore, we find that the urban physiognomy of slums and population distribution patterns are related, which allows for highlighting the diversity of such patterns using earth observation within and between slums of the same city. 

  • 7.
    Abascal, Angela
    et al.
    University of Navarra, Spain.
    Vanhuysse, Sabine
    Université libre de Bruxelles, Belgium.
    Grippa, Taïs
    Université libre de Bruxelles, Belgium.
    Rodriguez-Carreño, Ignacio
    University of Navarra, Spain.
    Georganos, Stefanos
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Environmental and Life Sciences (from 2013).
    Wang, Jiong
    University of Twente, Netherlands.
    Kuffer, Monika
    University of Twente, Netherlands.
    Martinez-Diez, Pablo
    300.000 Km/s, Barcelona, Spain.
    Santamaria-Varas, Mar
    300.000 Km/s, Barcelona, Spain.
    Wolff, Eleonore
    Université libre de Bruxelles, Belgium.
    AI perceives like a local: predicting citizen deprivation perception using satellite imagery2024In: npj Urban Sustainability, E-ISSN 2661-8001, Vol. 4, no 1, article id 20Article in journal (Refereed)
    Abstract [en]

    Deprived urban areas, commonly referred to as ‘slums,’ are the consequence of unprecedented urbanisation. Previous studies have highlighted the potential of Artificial Intelligence (AI) and Earth Observation (EO) in capturing physical aspects of urban deprivation. However, little research has explored AI’s ability to predict how locals perceive deprivation. This research aims to develop a method to predict citizens’ perception of deprivation using satellite imagery, citizen science, and AI. A deprivation perception score was computed from slum-citizens’ votes. Then, AI was used to model this score, and results indicate that it can effectively predict perception, with deep learning outperforming conventional machine learning. By leveraging AI and EO, policymakers can comprehend the underlying patterns of urban deprivation, enabling targeted interventions based on citizens’ needs. As over a quarter of the global urban population resides in slums, this tool can help prioritise citizens’ requirements, providing evidence for implementing urban upgrading policies aligned with SDG-11.

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  • 8.
    Abascal, Angela
    et al.
    Public University of Navarre, Spain.
    Wang, Jon
    University of Twente, Netherlands.
    Kuffer, Monika
    University of Twente, Netherlands.
    Georganos, Stefanos
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Environmental and Life Sciences (from 2013).
    Vanhuysse, Sabine
    Université Libre de Bruxelles (ULB), Belgium.
    Heat Exposure of Deprivation Through Air Temperature Modelling2024In: Proceedings-International Geoscience and Remote Sensing Symposium (IGARSS), Institute of Electrical and Electronics Engineers (IEEE), 2024, p. 1156-1159Conference paper (Refereed)
    Abstract [en]

    Many studies are pointing to the fact that cities are experiencing higher temperatures than non-built-up areas. Yet limited can be found on thermal inequalities in the context of vulnerable groups, specifically linked to people living in deprivation. Here, we study heat patterns across vulnerable groups living in deprivation as an important effort that should be paralleled to the other urban climate studies and aim at answering two primary questions: (1) how temperature varies within and across deprived areas, and (2) what the key driving factors are for such variation. We conduct intensive in-situ measurements by involving local residents in air temperature traverse across deprived neighbourhoods and modelling the pattern of air temperature with spatial covariates. We also compare different modelling techniques while securing the interpretability of the air temperature pattern by using understandable spatial covariates, which is especially informative for mitigation and adaptation, and linking scientific exploration and practical solutions. 

  • 9.
    Abbas, Mhd Yazan
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013). Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science.
    Ferzali, Ali
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013). Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science.
    A mobile Application development in the Android Studio platform for leave applications2022Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Nowadays, there is a mobile application for almost every need, for instance, training, games, and news applications. Almost all the companies have also their own mobile applications that facilitate the daily communication between their employees and supervisors. In this thesis, the development process of an Android application for the company Askås is created, where the employees can for example send a Flex application or sick leave application, see their registered personal information and edit them. The final result of the project is almost what Askås asked for, An Android application that facilitates their employees’ daily needs. The development process, the results, and the encountered problems are also represented in a more detailed manner in the thesis. 

  • 10.
    Abbas, Muhammad Tahir
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Improving the Energy Efficiency of Cellular IoT Device2023Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    Cellular Internet of Things (CIoT) has emerged as a promising technology to support applications that generate infrequent data. One requirement on these applications, often battery-powered devices, is low energy consumption to enable extended battery life. Narrowband IoT (NB-IoT) is a promising technology for IoT due to its low power consumption, which is essential for devices that need to run on battery power for extended periods. However, the current battery life of NB-IoT devices is only a few years, which is insufficient for many applications. This thesis investigates the impact of energy-saving mechanisms standardized by 3GPP on battery life of NB-IoT devices. The main research objective is to classify and analyze existing energy-saving solutions for CIoT and examine their limitations, to study the impact of standardized energy-saving mechanisms on the battery life of NB-IoT devices, both in isolation and combined, and to provide guidelines on how to configure NB-IoT devices to reduce energy consumption efficiently. The research aims to provide a deeper understanding of the effect of energy-saving mechanisms and best practices to balance energy efficiency and performance of NB-IoT devices. Applying the proposed solutions makes it possible to achieve a battery life of 10~years or more for CIoT devices.

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  • 11.
    Abbas, Muhammad Tahir
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Eklund, Johan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Brunström, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Alfredsson, Stefan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Rajiullah, Mohammad
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Grinnemo, Karl-Johan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Caso, Giuseppe
    Ericsson Research.
    Kousias, Konstantinos
    Simula Research Laboratory, Norway.
    Alay, Özgü
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013). University of Oslo, Norway.
    On the Energy-efficient Use of Discontinuous Reception and Release Assistance in NB-IoT2022Conference paper (Refereed)
    Abstract [en]

    Cellular Internet of Things (CIoT) is a Low-Power Wide-Area Network (LPWAN) technology. It aims for cheap, lowcomplexity IoT devices that enable large-scale deployments and wide-area coverage. Moreover, to make large-scale deployments of CIoT devices in remote and hard-to-access locations possible, a long device battery life is one of the main objectives of these devices. To this end, 3GPP has defined several energysaving mechanisms for CIoT technologies, not least for the Narrow-Band Internet of Things (NB-IoT) technology, one of the major CIoT technologies. Examples of mechanisms defined include CONNECTED-mode DRX (cDRX), Release Assistance Indicator (RAI), and Power Saving Mode (PSM). This paper considers the impact of the essential energy-saving mechanisms on minimizing the energy consumption of NB-IoT devices, especially the cDRX and RAI mechanisms. The paper uses a purpose-built NB-IoT simulator that has been tested in terms of its built-in energy-saving mechanisms and validated with realworld NB-IoT measurements. The simulated results show that it is possible to save 70%-90% in energy consumption by enabling the cDRX and RAI. In fact, the results suggest that a battery life of 10 years is only achievable provided the cDRX, RAI, and PSM energy-saving mechanisms are correctly configured and used

  • 12.
    Abbas, Muhammad Tahir
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Eklund, Johan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Grinnemo, Karl-Johan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Brunström, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Impact of Tunable Parameters in NB-IoT Stack onthe Energy Consumption2019In: Proceedings of Fifteenth Swedish National Computer Networking Workshop (SNCNW), 2019Conference paper (Refereed)
    Abstract [en]

    This paper studies the impact of tunable parametersin the NB-IoT stack on the energy consumption of a user equipment(UE), e.g., a wireless sensor. NB-IoT is designed to enablemassive machine-type communications for UE while providing abattery lifetime of up to 10 years. To save battery power, most oftime the UE is in dormant state and unreachable. Still, duringthe CONNECTED and IDLE state, correct tuning of criticalparameters, like Discontinuous reception (DRX), and extendedDiscontinuous reception (eDRX), respectively, are essential to savebattery power. Moreover, the DRX and eDRX actions relate tovarious parameters which are needed to be tuned in order toachieve a required UE battery lifetime. The objective of thispaper is to observe the influence of an appropriate tuning ofthese parameters to reduce the risk of an early battery drainage

  • 13.
    Abbas, Muhammad Tahir
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Eklund, Johan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Grinnemo, Karl-Johan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Brunström, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013). Karlstad University, Faculty of Health, Science and Technology (starting 2013), Science, Mathematics and Engineering Education Research.
    Alfredsson, Stefan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Science, Mathematics and Engineering Education Research. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Alay, Özgü
    University of Oslo and Simula Metropolitan, NOR.
    Katona, Sándor
    Ericsson AB.
    Seres, Gergely
    Ericsson AB.
    Rathonyi, Bela
    Ericsson AB.
    Guidelines for an Energy Efficient Tuning of the NB-IoT Stack2020In: 45th IEEE Conference on Local Computer Networks (LCN), IEEE Communications Society, 2020, p. 60-69, article id 9363265Conference paper (Refereed)
    Abstract [en]

    In this paper, we study the energy consumptionof Narrowband IoT devices. The paper suggests that key tosaving energy for NB-IoT devices is the usage of full Discontinuous Reception (DRX), including the use of connected-mode DRX (cDRX): In some cases, cDRX reduced the energy consumption over a 10-year period with as much as 50%. However, the paper also suggests that tunable parameters, such as the inactivity timer, do have a significant impact. On the basis of our findings, guidelines are provided on how to tune the NB-IoT device so that it meets the target of the 3GPP, i.e., a 5-Wh battery should last for at least 10 years. It is further evident from our results that the energy consumption is largely dependent on the intensity and burstiness of the traffic, and thus could be significantly reduced if data is sent in bursts with less intensity,irrespective of cDRX support.

  • 14.
    Abbas, Muhammad Tahir
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Grinnemo, Karl-Johan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Brunstrom, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Jörke, Pascal
    TU Dortmund University, Germany.
    Eklund, Johan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Alfredsson, Stefan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Rajiullah, Mohammad
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Wietfeld, Christian
    TU Dortmund University, Germany.
    Evaluating the Impact of Pre-Configured Uplink Resources in Narrowband IoT2024In: Sensors, E-ISSN 1424-8220, Vol. 24, no 17, article id 5706Article in journal (Refereed)
    Abstract [en]

    Deploying Cellular Internet of Things (CIoT) devices in urban and remote areas faces significant energy efficiency challenges. This is especially true for Narrowband IoT (NB-IoT) devices, which are expected to function on a single charge for up to 10 years while transmitting small amounts of data daily. The 3rd Generation Partnership Project (3GPP) has introduced energy-saving mechanisms in Releases 13 to 16, including Early Data Transmission (EDT) and Preconfigured Uplink Resources (PURs). These mechanisms extend battery life and reduce latency by enabling data transmission without an active Radio Resource Control (RRC) connection or Random Access Procedure (RAP). This paper examines these mechanisms using the LENA-NB simulator in the ns-3 environment, which is a comprehensive framework for studying various aspects of NB-IoT. The LENA-NB has been extended with PURs, and our analysis shows that PURs significantly enhance battery life and latency efficiency, particularly in high-density environments. Compared to the default RAP method, PURs reduce energy consumption by more than 2.5 times and increases battery life by 1.6 times. Additionally, PURs achieve latency reductions of 2.5 - 3.5 times. The improvements with PURs are most notable for packets up to 125 bytes. Our findings highlight PURs' potential to enable more efficient and effective CIoT deployments across various scenarios. This study represents a detailed analysis of latency and energy consumption in a simulated environment, advancing the understanding of PURs' benefits.

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  • 15.
    Abbas, Muhammad Tahir
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Grinnemo, Karl-Johan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Eklund, Johan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Alfredsson, Stefan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Rajiullah, Mohammad
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Brunström, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Caso, Giuseppe
    Ericsson Research, Sweden.
    Kousias, Konstantinos
    Simula Research Laboratory, Norway.
    Alay, Özgü
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013). University of Oslo, Norway.
    Energy-Saving Solutions for Cellular Internet of Things - A Survey2022In: IEEE Access, E-ISSN 2169-3536, Vol. 10, p. 62096-62096Article in journal (Refereed)
    Abstract [en]

    The Cellular Internet of Things (CIoT), a new paradigm, paves the way for a large-scale deployment of IoT devices. CIoT promises enhanced coverage and massive deployment of low-cost IoT devices with an expected battery life of up to 10 years. However, such a long battery life can only be achieved provided the CIoT device is configured with energy efficiency in mind. This paper conducts a comprehensive survey on energy-saving solutions in 3GPP-based CIoT networks. In comparison to current studies, the contribution of this paper is the classification and an extensive analysis of existing energy-saving solutions for CIoT, e.g., the configuration of particular parameter values and software modifications of transport- or radio-layer protocols, while also stressing key parameters impacting the energy consumption such as the frequency of data reporting, discontinuous reception cycles (DRX), and Radio Resource Control (RRC) timers. In addition, we discuss shortcomings, limitations, and possible opportunities which can be investigated in the future to reduce the energy consumption of CIoT devices.

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  • 16.
    Abbas, Muhammad Tahir
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Grinnemo, Karl-Johan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Ferré, G.
    University of Bordeaux, Bordeaux, France.
    Laurent, P.
    University of Liège, Liège, Belgium.
    Alfredsson, Stefan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Rajiullah, Mohammad
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Eklund, Johan
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Towards zero-energy: Navigating the future with 6G in Cellular Internet of Things2024In: Journal of Network and Computer Applications, ISSN 1084-8045, E-ISSN 1095-8592, Vol. 230, article id 103945Article in journal (Refereed)
    Abstract [en]

    The Cellular Internet of Things (CIoT) has seen significant growth in recent years. With the deployment of 5G, it has become essential to reduce the power consumption of these devices for long-term sustainability. The upcoming 6G cellular network introduces the concept of zero-energy CIoT devices, which do not require batteries or manual charging. This paper focuses on these devices, providing insight into their feasibility and practical implementation. The paper examines how CIoT devices use simultaneous wireless information and power transfer, beamforming, and backscatter communication techniques. It also analyzes the potential use of energy harvesting and power management in zero-energy CIoT devices. Furthermore, the paper explores how low-power transceivers can lower energy usage while maintaining dependable communication functions.

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  • 17.
    Abbas, Muhammad Tahir
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Jibran, Muhammad Ali
    Jeju Natl Univ, Dept Comp Engn, Jeju 63243, South Korea..
    Afaq, Muhammad
    Sarhad Univ Sci & Informat Technol, Pakistan..
    Song, Wang-Cheol
    Jeju Natl Univ, South Korea..
    An adaptive approach to vehicle trajectory prediction using multimodel Kalman filter2020In: European transactions on telecommunications, ISSN 1124-318X, E-ISSN 2161-3915, article id e3734Article in journal (Refereed)
    Abstract [en]

    With the aim to improve road safety services in critical situations, vehicle trajectory and future location prediction are important tasks. An infinite set of possible future trajectories can exit depending on the current state of vehicle motion. In this paper, we present a multimodel-based Extended Kalman Filter (EKF), which is able to predict a set of possible scenarios for vehicle future location. Five different EKF models are proposed in which the current state of a vehicle exists, particularly, a vehicle at intersection or on a curve path. EKF with Interacting Multiple Model framework is explored combinedly for mathematical model creation and probability calculation for that model to be selected for prediction. Three different parameters are considered to create a state vector matrix, which includes vehicle position, velocity, and distance of the vehicle from the intersection. Future location of a vehicle is then used by the software-defined networking controller to further enhance the safety and packet delivery services by the process of flow rule installation intelligently to that specific area only. This way of flow rule installation keeps the controller away from irrelevant areas to install rules, hence, reduces the network overhead exponentially. Proposed models are created and tested in MATLAB with real-time global positioning system logs from Jeju, South Korea.

  • 18.
    Abbas, Muhammad Tahir
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Muhammad, Afaq
    Sarhad Univ Sci & Informat Technol, Dept Comp Sci & IT, Peshawar, Pakistan.
    Song, Wang-Cheol
    Jeju Natl Univ, Dept Comp Engn, Jeju, South Korea.
    Road-Aware Estimation Model for Path Duration in Internet of Vehicles (IoV)2019In: Wireless personal communications, ISSN 0929-6212, E-ISSN 1572-834X, Vol. 109, no 2, p. 715-738Article in journal (Refereed)
    Abstract [en]

    In Internet of Vehicles (IoV), numerous routing metrics have been used to assess the performance of routing protocols such as, packet delivery ratio, throughput, end-to-end delay and path duration. Path duration is an influential design parameter, among these routing metrics, that determines the performance of vehicular networks. For instance, in highly dynamic scenarios, it can be used to predict link life time in on-demand routing protocols. In this paper, we propose an infrastructure-assisted hybrid road-aware routing protocol which is capable of enhanced vehicle-to-vehicle and vehicle-to-infrastructure communication. A remarkable aspect of the proposed protocol is that it establishes a link between path duration and fundamental design parameters like vehicular velocity, density, hop count and transmission range. Although, a lot of research has been previously performed, a well defined analytical model for IoV is not available in the literature. Precisely, a relation between path duration and vehicular velocity has not been validated in the previous studies. Experimental results show that the increased packet delivery ratio with reduced end-to-end delay can be achieved by the prediction of path duration. Proposed model for path duration is validated by getting experimental results from network simulator 3 (NS3) and analytical results from MATLAB. In addition, SUMO simulator was used to generate real time traffic on the roads of Gangnam district, South Korea.

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  • 19.
    Abbas, Muhammad Tahir
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Muhammad, Afaq
    Sarhad Univ Sci & Informat Technol, Pakistan.
    Song, Wang-Cheol
    Jeju Natl Univ, South Korea.
    SD-IoV: SDN enabled routing for internet of vehicles in road-aware approach2019In: Journal of Ambient Intelligence and Humanized Computing, ISSN 1868-5137, E-ISSN 1868-5145, Vol. 11, no 3, p. 1265-1280Article in journal (Refereed)
    Abstract [en]

    Proposing an optimal routing protocol for internet of vehicles with reduced overhead has endured to be a challenge owing to the incompetence of the current architecture to manage flexibility and scalability. The proposed architecture, therefore, consolidates an evolving network standard named as software defined networking in internet of vehicles. Which enables it to handle highly dynamic networks in an abstract way by dividing the data plane from the control plane. Firstly, road-aware routing strategy is introduced: a performance-enhanced routing protocol designed specifically for infrastructure-assisted vehicular networks. In which roads are divided into road segments, with road side units for multi-hop communication. A unique property of the proposed protocol is that it explores the cellular network to relay control messages to and from the controller with low latency. The concept of edge controller is introduced as an operational backbone of the vehicle grid in internet of vehicles, to have a real-time vehicle topology. Last but not least, a novel mathematical model is estimated which assists primary controller in a way to find not only a shortest but a durable path. The results illustrate the significant performance of the proposed protocol in terms of availability with limited routing overhead. In addition, we also found that edge controller contributes mainly to minimizes the path failure in the network.

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  • 20.
    Abbas, Shahrukh
    et al.
    National University of Sciences & Technology, PAK.
    Kazmi, Syed Ali
    National University of Sciences & Technology, PAK.
    Naqvi, Muhammad
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences (from 2013).
    Javed, Adeel
    National University of Sciences & Technology, PAK.
    Naqvi, SR
    National University of Sciences & Technology, PAK.
    Ullah, Kafait
    National University of Sciences & Technology, PAK.
    Khan, Tauseef
    Natl Transmiss & Dispatch Co NTDC, PAK.
    Shin, Dong
    SungKyunKwan Univ SKKU, KOR.
    Impact Analysis of Large-Scale Wind Farms Integration in Weak Transmission Grid from Technical Perspectives2020In: Energies, E-ISSN 1996-1073, Vol. 13, no 20, article id 5513Article in journal (Refereed)
    Abstract [en]

    The integration of commercial onshore large-scale wind farms into a national grid comes with several technical issues that predominately ensure power quality in accordance with respective grid codes. The resulting impacts are complemented with the absorption of larger amounts of reactive power by wind generators. In addition, seasonal variations and inter-farm wake effects further deteriorate the overall system performance and restrict the optimal use of available wind resources. This paper presented an assessment framework to address the power quality issues that have arisen after integrating large-scale wind farms into weak transmission grids, especially considering inter-farm wake effect, seasonal variations, reactive power depletion, and compensation with a variety of voltage-ampere reactive (Var) devices. Herein, we also proposed a recovery of significant active power deficits caused by the wake effect via increasing hub height of wind turbines. For large-scale wind energy penetration, a real case study was considered for three wind farms with a cumulative capacity of 154.4 MW integrated at a Nooriabad Grid in Pakistan to analyze their overall impacts. An actual test system was modeled in MATLAB Simulink for a composite analysis. Simulations were performed for various scenarios to consider wind intermittency, seasonal variations across four seasons, and wake effect. The capacitor banks and various flexible alternating current transmission systems (FACTS) devices were employed for a comparative analysis with and without considering the inter-farm wake effect. The power system parameters along with active and reactive power deficits were considered for comprehensive analysis. Unified power flow controller (UPFC) was found to be the best compensation device through comparative analysis, as it maintained voltage at nearly 1.002 pu, suppressed frequency transient in a range of 49.88-50.17 Hz, and avoided any resonance while maintaining power factors in an allowable range. Moreover, it also enhanced the power handling capability of the power system. The 20 m increase in hub height assisted the recovery of the active power deficit to 48%, which thus minimized the influence of the wake effect.

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  • 21.
    Abbott, Jessica K.
    et al.
    Lund University.
    Chippindale, Adam K.
    Queens University, Kingston, CAN.
    Morrow, Edward H. (Ted)
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Environmental and Life Sciences (from 2013).
    The microevolutionary response to male-limited X-chromosome evolution in Drosophila melanogaster reflects macroevolutionary patterns2020In: Journal of Evolutionary Biology, ISSN 1010-061X, E-ISSN 1420-9101, Vol. 33, no 6, p. 738-750Article in journal (Refereed)
    Abstract [en]

    Due to its hemizygous inheritance and role in sex determination, the X-chromosome is expected to play an important role in the evolution of sexual dimorphism and to be enriched for sexually antagonistic genetic variation. By forcing the X-chromosome to only be expressed in males over >40 generations, we changed the selection pressures on the X to become similar to those experienced by the Y. This releases the X from any constraints arising from selection in females and should lead to specialization for male fitness, which could occur either via direct effects of X-linked loci or trans-regulation of autosomal loci by the X. We found evidence of masculinization via up-regulation of male-benefit sexually antagonistic genes and down-regulation of X-linked female-benefit genes. Potential artefacts of the experimental evolution protocol are discussed and cannot be wholly discounted, leading to several caveats. Interestingly, we could detect evidence of microevolutionary changes consistent with previously documented macroevolutionary patterns, such as changes in expression consistent with previously established patterns of sexual dimorphism, an increase in the expression of metabolic genes related to mito-nuclear conflict and evidence that dosage compensation effects can be rapidly altered. These results confirm the importance of the X in the evolution of sexual dimorphism and as a source for sexually antagonistic genetic variation and demonstrate that experimental evolution can be a fruitful method for testing theories of sex chromosome evolution.

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  • 22.
    Abdalsatar, Riyam
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013).
    Baccouche, Magdalena
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013).
    Tobaksanvändning och oral ohälsa bland ungdomar: En litteraturstudie2024Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Introduktion: Att minska användningen av tobak och nikotinprodukter i samhället är avgörande då det är en betydande riskfaktor för allmän hälsa och oral hälsa hos ungdomar. Under ungdomsåren utforskar ungdomar olika identiteter och intressen, vilket ibland kan inkludera riskabla beteenden som tobaksanvändning. Genom att implementera hälsofrämjande strategier riktade mot ungdomar minskas hälsoriskerna och hälsan främjas.

    Syfte: Att beskriva tobaksanvändning och dess effekt på oral hälsa bland ungdomar i åldern 13–26 år

    Metod: Sökningen genomfördes i två databaser, PubMed och CINAHL. Totalt valdes 11 artiklar ut som ansågs svara på syftet och genomgick sedan en kvalitetsgranskning enligt Statens beredning för medicinsk och social utvärdering (SBU) granskningsmallar. Dessa artiklar omfattade ungdomar i åldersspannet 13–26 år.

    Resultat: Tobaksanvändning har en negativ effekt på ungdomars orala hälsa, vilket inkluderar en ökad förekomst av karies, parodontal ohälsa, benförlust, gingival recession, oral mukosal lesion och muntorrhet. 

    Diskussion: Tobaksanvändning, både genom rökning och snusning, har betydande konsekvenser för oral hälsa, vilket förstärker behovet av att integrera ett biopsykosocialt perspektiv i forskningen och vårdpraxisen för att förbättra interventioner för ungdomars oralhälsa. De utvalda artiklarna från olika länder bidrar med sin globala omfattning och mångfald till en djupare förståelse av tobaksanvändningens påverkan på ungdomars oral hälsa.

    Slutsats: Ungdomar är särskilt mottagliga för ohälsosamma beteenden, och trots att rökning minskar, ökar användningen av andra tobaksprodukter, vilket höjer risken för hälsoproblem. Det är nödvändigt med ett samarbete mellan olika samhällsaktörer för att främja både den allmänna och den orala hälsan hos ungdomar.

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  • 23.
    Abdellatif, Maysoon Sami
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013).
    Utvärdering av önskade och oönskade effekter av cannabisbaserade läkemedel vid multipel skleros, med fokus på Sativex®: – En litteraturstudie2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 24. Abdel-Rehim, M.
    et al.
    Carlsson, Gunilla
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemistry and Biomedical Sciences. Karlstad University, Faculty of Technology and Science, Materials Science.
    Bielenstein, M.
    Arvidsson, T.
    Blomberg, Lars G
    Karlstad University, Faculty of Technology and Science, Department of Chemistry and Biomedical Sciences.
    Evaluation of Solid-Phase microextraction (SPME) for Study of the protein Binding in Human Plasma Samples,2000In: J. Chromatogr. Sci., 38 (2000) 458-464Article in journal (Refereed)
  • 25.
    Abdirashid, Abdulle
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Detektion av kloratreduktas och kloritdismutas med hjälp av 2D elektrofores2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 26.
    Abdu, Mohammed
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).
    Integrated Source Code and Architectural Quality Analysis Using Neo4j Graph Database2024Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In the realm of software engineering, understanding the architecture and measuringthe quality of a source code is essential for maintaining and enhancing softwaresystems. However, many existing tools fall short in evaluating architectural aspects,such as detecting architectural erosion or addressing architecture-related metrics andconstraints tailored to the unique context of their systems or organisations. Thisdeficiency restricts proactive architecture governance and hinders the mitigation ofarchitecture-related risks, creating a critical gap in the analysis of software sourcecode.

    This thesis presents a novel approach to tackle these challenges. It proposes a graphdatabase as a data structure for analysing the source code and architecture quality andcalculating various architectural metrics of interest. The tool developed in this thesisrepresents the source code structural elements and their relationships in the graphdatabase, enabling an intuitive analysis of the source code architecture.

    The tool also integrates different code quality metrics parsed from Visual Studiocode metrics results, mapped to their correspondent nodes to assess the source codeoverall quality and identify potential areas of improvement. This empowers softwareengineers and developers to make informed decisions regarding refactoring, codeoptimisation, and architectural enhancements.

    Furthermore, the tool allows users to define the intended architecture in terms ofmodules to reveal any Architecture erosion (AEr). It also provides the flexibility toestablish custom constraints and metrics through tailored queries, accommodating theunique requirements of their system and company.

    A case study conducted on a real-world software project validates the effectivenessand usefulness of the proposed approach. The case study demonstrates how the toolanalysis reveals valuable insights into the source code health and identifies patternsthat can impact maintainability and scalability. The results of this research showcasethe potential of our tool as a powerful instrument for analysing the code qualityand architecture of source code, fostering more resilient and sustainable softwaresystems.

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    Integrated Source Code and Architectural Quality Analysis Using Neo4j Graph Database
  • 27.
    Abdul Wahid, Nuriya
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013).
    Gustafsson, Linn
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013).
    Orsaker till arbetsrelaterad stress hos sjuksköterskor på akutmottagningar: En litteraturstudie2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Introduktion: En akutmottagning är avsedd för personer med akut sjukdom eller skada. Arbetet på en akutmottagning kan vara stressigt, ständigt omväxlande och oförutsägbart. Sjuksköterskans huvudansvar är omvårdnaden och förväntas göra snabba bedömningar samt ge adekvat vård. Arbetsrelaterad stress uppstår när kraven blir för höga jämfört med sjuksköterskans kompetens och förmåga. Långvarig arbetsrelaterad stress under en lång tid kan leda till problem med hälsan. Syfte: Syftet var att belysa vad som orsakar arbetsrelaterad stress hos sjuksköterskor på en akutmottagning. Metod: Litteraturstudien utfördes enligt Polit och Becks (2017) flödesschema i nio steg. Databassökningar i CINAHL, PsycINFO och PubMed utfördes där 12 artiklar var relevanta för litteraturstudiens syfte samt inklusion- och exklusionskriterierna. Sju var kvantitativa, fyra var kvalitativa och en mixad metod. Samtliga artiklar granskades med hjälp av granskningsmallar. Två huvudkategorier samt underkategorier identifierades under databearbetningen. Resultat: Orsakerna till arbetsrelaterad stress som belysts i den här litteraturstudien har presenterats i två huvudkategorier: Hög arbetsbelastning och påfrestande situationer samt underkategorier till hög arbetsbelastning: organisatoriska brister och tidsbrist. Slutsats: Sjuksköterskor på en akutmottagning träffar på en rad olika orsaker till arbetsrelaterad stress oavsett vilken akutmottagning. Överbeläggning och stort antal patienter bidrog till arbetsrelaterad stress hos sjuksköterskor. Resursen sjuksköterskor räcker inte till på akutmottagningen och orsakar en tidsbrist. Otillräckligt omhändertagande inom primärvården orsakar överbelastning på akutmottagningen.

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  • 28.
    Abdullahi, Beyar
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013).
    Nordström, Karin
    Karlstad University, Faculty of Health, Science and Technology (starting 2013).
    Automatisering av multiplikationstabellerna: En studie om automatisering av multiplikationstabellerna2020Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Previous research had shown that students lacked knowledge in the multiplication tables. Automating the tables gives students good conditions to succeed in other areas of mathematics. The purpose of this study was to create knowledge about teacher’s perceptions of automating the multiplication tables and to examine how many of the pupils had automated the tables. The purpose was also to identify what methods teachers use to support students in multiplication table automation. The study was conducted with a survey and the results were followed up with focus group interviews. The results showed that many teachers value the automation of the multiplication tables because it prepares the students for other mathematics areas and it relieves the student’s working memory. The methods most teachers used in their teaching were digital teaching platforms and various worksheets such as drill training of the tables.

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  • 29.
    Abdulqader, Ann
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013).
    En jämförelse av effektivitet för protonpumpshämmare och histamin 2- receptorblockerare, vid behandling av gastroesofagealreflux, ventrikelulkus och duodenalulkus.: Litteraturstudie2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 30.
    Abecasis, David
    et al.
    University of the Algarve, Portugal.
    Steckenreuter, Andre
    University of the Azores, Portugal.
    Reubens, Jan
    Flanders Marine Institute, Belgium.
    Aaestrup, Kim
    DTU, Denmark.
    Alos, Josep
    Instituto Mediterráneo de Estudios Avanzados (CSIC-UIB), Spain.
    Badalamenti, Fabio
    CNR-IAMC, Italy.
    Bajona, Lenore
    Dalhousie University, Canada.
    Boylan, Patrick
    Loughs Agency, UK.
    Deneudt, Klaas
    Flanders Marine Institute, Belgium.
    Greenberg, Larry
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Environmental and Life Sciences (from 2013).
    Brevé, Niels
    Sportfisserij Nederland, The Netherlands.
    Hernandez, Francisco
    Flanders Marine Institute, Belgium.
    Humphries, Nick
    The Marine Biological Association of the U.K, UK.
    Meyer, Carl
    University of Hawai’i at Mānoa, USA.
    Sims, David
    University of Southampton, UK.
    Thorstad, Eva B.
    Norwegian Institute for Nature Research (NINA), Norway.
    Walker, Alan M.
    Centre for Environment, Fisheries and Aquaculture Science (Cefas), UK.
    Whoriskey, Fred
    Dalhousie University, Canada.
    Alfonso, Pedro
    University of the Azores, Portugal.
    A review of acoustic telemetry in Europe and the need for a regional aquatic telemetry network2018In: Animal Biotelemetry, E-ISSN 2050-3385, Vol. 6, article id 12Article in journal (Refereed)
    Abstract [en]

    Background: Globally, there are a large and growing number of researchers using biotelemetry as a tool to studyaquatic animals. In Europe, this community lacks a formal network structure. The aim of this study is to review the useof acoustic telemetry in Europe and document the contribution of cross-boundary studies and inter-research groupcollaborations. Based on this, we explore the potential benefits and challenges of a network approach to identifyfuture priorities and best practices for aquatic biotelemetry research in Europe.

    Results: Over the past decade, there was an approximately sevenfold increase in the number of acoustic telemetrystudies published on marine and diadromous species in Europe compared to a sixfold increase globally. Over 90%of these studies were conducted on fishes and undertaken in coastal areas, estuaries, or rivers. 75% of these studieswere conducted by researchers based in one of five nations (Norway, UK, France, Portugal, and Spain) and, eventhough 34% were based on collaborations between scientists from several countries, there was only one study withan acoustic receiver array that extended beyond the borders of a single country. In recent years, acoustic telemetryin European waters has evolved from studying behavioural aspects of animals (82.2%), into more holistic approachesaddressing management-related issues (10%), tagging methods and effects (5%), and technology and data analysisdevelopment (2.8%).

    Conclusions: Despite the increasing number of publications and species tracked, there is a prominent lack ofplanned and structured acoustic telemetry collaborations in Europe. A formal pan-European network structure wouldpromote the development of (1) a research platform that could benefit the acoustic telemetry community throughcapacity building, (2) a centralized database, and (3) key deployment sites and studies on priority species requiringresearch in Europe. A network may increase efficiency, expand the scope of research that can be undertaken, promoteEuropean science integration, enhance the opportunities and success of acquiring research funding and, ultimately,foster regional and transatlantic collaborations. It may also help address research priorities such as the large-scalesocietal challenges arising from climate change impacts and assist the EU’s Marine Strategy Framework Directive viaidentification of good environmental status of endangered or commercially important species.

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  • 31.
    Abed, Nathalie
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013).
    Dahl Hansen, Erika
    Karlstad University, Faculty of Health, Science and Technology (starting 2013).
    Sjuksköterskors erfarenheter av användning av tolk vid språkbarriärer inom slutenvården: En litteraturstudie2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Introduktion/Bakgrund: Sjuksköterskor möter patienter som talar olika språk i sitt dagliga arbete.  Kommunikationen är en viktig del i sjuksköterskors arbete och är avgörande för att kunna skapa förståelse mellan sjuksköterskor och patienter. Tolk är det vanligaste hjälpmedlet att använda vid språkbarriärer. Språkbarriärer är en hindrande kommunikationssvårighet. World Health Organisation rapporterar att kommunikationssvårigheter är en bidragande orsak till att vårdskador kan uppstå i vården. Syfte: Syftet är att belysa sjuksköterskors erfarenheter av tolkanvändning vid språkbarriärer inom slutenvården. Metod: Studien har genomförts genom att tillämpa Polit och Becks (2017) nio steg med ett induktivt förhållningssätt. Sökningarna efter litteratur har skett systematiskt i databaserna Cinahl och PubMed. Sökningarna genererade tio kvalitativa artiklar. Artiklarna kvalitetsgranskades genom SBU:s granskningsmall för kvalitativa studier.  Resultat: Litteraturstudiens resultat genererade fyra teman: tidskrävande, oro och osäkerhet, begränsningar i kommunikationen och ett stöd i omvårdnadsarbetet. Slutsats: Sjuksköterskor erfar att tolken är det effektivaste hjälpmedlet vid språkbarriärer, dock är tolkanvändning inte problemfri. Tolkningstjänsterna har begränsningar och är tidskrävande, vilket skapar oro och osäkerhet hos sjuksköterskor.

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  • 32.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013).
    2 minuters träning per arbetspass.2015In: Samverkan 112, ISSN 1650-7487, Vol. AprilArticle in journal (Other academic)
  • 33.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Att ansvara för en annan människas liv2013Conference paper (Other (popular science, discussion, etc.))
  • 34.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Att bedöma patienter utsatta för trauma2013Conference paper (Other academic)
  • 35.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Att träna på en patient som går att starta om2015Conference paper (Other academic)
  • 36.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Att vara doktorand2014Conference paper (Other (popular science, discussion, etc.))
  • 37.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Den specialistutbildade ambulanssjuksköterskans uppfattning av att bedöma patienter utsatta för svårt trauma2013Conference paper (Other academic)
  • 38.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Developing ethical competence among students in nurse specialist programs2014Conference paper (Other academic)
  • 39.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013).
    Dom ser döda ut allihop: Att våga fatta svåra beslut2015In: Samverkan 112, ISSN 1650-7487, Vol. AprilArticle in journal (Other academic)
  • 40.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Full scale pre-hospital care scenario: Prehsopital workshop2015Conference paper (Refereed)
  • 41.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Mapping the use of simulation in prehospital care2013Conference paper (Refereed)
  • 42.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013).
    Nästa gång du hör sirener vill jag att du skall tänka på mig2014In: Vård i fokus, ISSN 0781-495X, Vol. 1Article in journal (Other academic)
  • 43.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Prehospital simulation differs from others: Prehospital workshop2015Conference paper (Refereed)
  • 44.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013).
    Prehospital simulering2014Conference paper (Other academic)
  • 45.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Simulering i ambulanssjukvården2013Conference paper (Other academic)
  • 46.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences (from 2013).
    Simulering som lärande inom prehospital akutsjukvård2017Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The overall aim of the research was to deepen the understanding of learning through simulation in prehospital emergency care.

    Method: In this research, qualitative and quantitative methods are used as well as integrative literature studies (I, II). Qualitative data from the interview studies (III, V) were analyzed by phenomenographic methodology. Quantitative data from the intervention study (IV) were analyzed using descriptive and analytical statistics.

    Results: Research on simulation and learning within the prehospital trauma care context is relatively rare (I). Simulation of realistic scenarios where the caregivers are exposed to stress contributes to strengthen caregiver knowledge, skills and experience (II). Caregivers request simulation opportunities regarding critical and emergency situations (III). They describe that learning through regular simulation provides in-depth knowledge and skills in the care of a patient exposed to high-energy trauma (V). Interventions with repeated simulation opportunities related to the care of the patient exposed to high-energy trauma give some improvement in care provided at the site of the accident (IV).

    Conclusion: Through simulation, the caregivers develop knowledge and skills and receive enhanced confidence in the care of an injured and sick patient. The research suggests several areas with potential for improvement with regard to the care of patients exposed to high-energy trauma. A model has been developed for systematic trauma simulation.

     

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  • 47.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Simulering som pedagogisk metod: ett sätt att träna olika patientsituationer2015Conference paper (Refereed)
  • 48.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    Så räddar du liv2014Conference paper (Other (popular science, discussion, etc.))
  • 49.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    The simulation used in prehospital care2013Conference paper (Refereed)
  • 50.
    Abelsson, Anna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Health Sciences.
    To optimize prehospital CPR- performed by fire fighters2015Conference paper (Refereed)
1234567 1 - 50 of 8891
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