| 1. |
- Andersson, Johnn, et al.
(author)
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The critical role of informed political direction for advancing technology : The case of Swedish marine energy
- 2017
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In: Energy Policy. - London : Elsevier. - 0301-4215 .- 1873-6777. ; 101, s. 52-64
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Journal article (peer-reviewed)abstract
- Marine energy technologies can contribute to meeting sustainability challenges, but they are still immature and dependent on public support. This paper employs the Technological Innovation Systems (TIS) framework to analyze the development and diffusion of Swedish marine energy up until 2014. While there were promising device developers, relevant industrial capabilities, and world-class research, the system suffered from weaknesses in several important innovation processes. Finally, the analysis identifies the lack of informed political direction as a critical blocking factor and highlights its connection to domestic market potential. © 2016 Elsevier Ltd
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| 2. |
- Dahlqvist Jönsson, Patrik, 1974, et al.
(author)
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Experience of living with a family member with bipolar disorder.
- 2011
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In: International journal of mental health nursing. - Richmond : Wiley. - 1447-0349 .- 1445-8330. ; 20:1, s. 29-37
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Journal article (peer-reviewed)abstract
- Bipolar disorder (BD) is a severe illness that has a serious impact on the lives of those affected and on their families. The aim of this study was to elucidate what it means for family members to live with an adult person who has BD, with reference to their views concerning the condition of the person affected and the future. During 2005, 17 family members of people with the disorder were interviewed, and the data obtained were subjected to a qualitative content analysis. The findings showed that family members felt alone with their experiences and struggled to make sense of and to maintain normality, as their life was encroached on by the condition. Bearing the burden of responsibility and control made it difficult for family members to focus on their own future. To build hope, they needed opportunities to share their experiences with others, increased understanding of the condition, and relief from the burden they bore. This study underlines the importance of strengthening support holistically for family members living with an adult person with BD. Support and interventions concerning these families' needs have to be developed and should be provided by all mental health-care services.
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| 3. |
- Ge, Yu, 1995, et al.
(author)
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Experimental Validation of Single Base Station 5G mm Wave Positioning: Initial Findings
- 2022
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In: 2022 25th International Conference on Information Fusion, FUSION 2022. - Piscataway : IEEE.
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Conference paper (peer-reviewed)abstract
- 5G cellular networks can utilize millimeter wave signals, and support large bandwidths and large antenna arrays, which provide more geometric-based signals and higher delay and angle resolutions. These merits bring new opportunities in positioning the user with limited infrastructure through the use of combined angle and delay information. However, there are many practical challenges to overcome, in order to have a functioning single base station 5G mmWave positioning system. In this paper, we describe a deployed single base station mmWave positioning system, and provide an example of the measurement data. Furthermore, we perform measurement validation on a limited measurement data set by performing base station localization. Additional evaluations performed on simulation model data provide guidelines on the required size of the data set and receiver antenna configuration, which will be implemented in upcoming measurements.
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| 4. |
- Karlsson, Jan, 1959-, et al.
(author)
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Reaching beyond disciplines through collaboration : Academics' learning in a national multidisciplinary research programme
- 2008
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In: Journal of Workplace Learning. - Bingley : Emerald Group Publishing Limited. - 1366-5626 .- 1758-7859. ; 20:2, s. 98-113
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Journal article (peer-reviewed)abstract
- Purpose - The purpose of this paper is to analyse and describe the learning that takes place in the interaction between academics from different disciplines and perspectives in collaboration with practitioners.Design/methodology/approach - The research draws on theories of learning that view it in relation to context, where the most significant features of the learning process concern discerning new aspects of a phenomenon. The study focuses on the workplace learning of researchers in a multidisciplinary programme at the National Institute for Working Life in Sweden (NIWL). Data was collected from semi-structured interviews. In the analysis the learning experienced was discerned by identifying how the participants spoke of developing and changing in their work as researchers.Findings - The investigation identified five categories of learning of the academics in the multidisciplinary research programme, namely: deepened awareness of perspectives and concepts; practical development; new awareness of one's competences and professional learning process; flexible professionalism and practical usefulness; insights into research and development processes.Practical implications - The study contributes to an increased understanding of how knowledge production and academics' workplace learning is constituted in multidisciplinary contexts and research programmes involving practitioners from outside academia.Originality/value - In organising and supporting learning and knowledge exchange in inter- or multidisciplinary research programmes with (or without) practitioners, it is essential to be aware of the importance of relational and contextual implications for academics' learning processes.
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| 5. |
- Pettersson, Håkan, et al.
(author)
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Photocurrent spectroscopy on self-assembled InAs quantum dots embedded in InP
- 2005
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In: Microelectronics Journal. - Amsterdam : Elsevier. - 0026-2692. ; 36:3-6, s. 227-230
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Journal article (peer-reviewed)abstract
- In this work, we report on an overview of recent results from Fourier transform photocurrent (FTPC) measurements in the infrared spectral region on ensembles of self-assembled InAs quantum dots embedded in a matrix of InP. In interband PC, clear signals related to the dots are observed. Comparing the PC- and PL spectra, we observe that the fundamental transition is absent in the PC spectra, which we interpret in terms of Pauliblocking due to a filled electron ground state of the dots. Our results furthermore suggest that an Auger process is involved in forming the interband PC signal. In intersubband PC, peaks related to transitions from the dots' ground- and first excited states to the conduction band of the matrix are observed. Using a novel approach of combining FTPC with illumination from an additional external non-modulated light source, we have measured the spectral distribution of photoionization of excitons in quantum dots and found an exciton binding energy in good agreement with theoretical calculations.
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| 6. |
- Polymeri, Erini, et al.
(author)
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Deep learning-based quantification of PET/CT prostate gland uptake : association with overall survival
- 2020
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In: Clinical Physiology and Functional Imaging. - Chichester : Blackwell Publishing. - 1475-0961 .- 1475-097X. ; 40:2, s. 106-113
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Journal article (peer-reviewed)abstract
- Aim: To validate a deep-learning (DL) algorithm for automated quantification of prostate cancer on positron emission tomography/computed tomography (PET/CT) and explore the potential of PET/CT measurements as prognostic biomarkers. Material and methods: Training of the DL-algorithm regarding prostate volume was performed on manually segmented CT images in 100 patients. Validation of the DL-algorithm was carried out in 45 patients with biopsy-proven hormone-naïve prostate cancer. The automated measurements of prostate volume were compared with manual measurements made independently by two observers. PET/CT measurements of tumour burden based on volume and SUV of abnormal voxels were calculated automatically. Voxels in the co-registered 18F-choline PET images above a standardized uptake value (SUV) of 2·65, and corresponding to the prostate as defined by the automated segmentation in the CT images, were defined as abnormal. Validation of abnormal voxels was performed by manual segmentation of radiotracer uptake. Agreement between algorithm and observers regarding prostate volume was analysed by Sørensen-Dice index (SDI). Associations between automatically based PET/CT biomarkers and age, prostate-specific antigen (PSA), Gleason score as well as overall survival were evaluated by a univariate Cox regression model. Results: The SDI between the automated and the manual volume segmentations was 0·78 and 0·79, respectively. Automated PET/CT measures reflecting total lesion uptake and the relation between volume of abnormal voxels and total prostate volume were significantly associated with overall survival (P = 0·02), whereas age, PSA, and Gleason score were not. Conclusion: Automated PET/CT biomarkers showed good agreement to manual measurements and were significantly associated with overall survival. © 2019 The Authors. Clinical Physiology and Functional Imaging published by John Wiley & Sons Ltd on behalf of Scandinavian Society of Clinical Physiology and Nuclear Medicine
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| 7. |
- Sjöberg, Katrin, et al.
(author)
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Measuring and using the RSSI of IEEE 802.11p
- 2010
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In: 17th World Congress on Intelligent Transport Systems, ITS 2010, Busan, South Korea, 25-29 October 2010.
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Conference paper (peer-reviewed)abstract
- The scalability of intelligent transport systems (ITS) applications is difficult to test in a field operational test (FOT) due to the high number of ITS equipped vehicles required. Therefore, computer simulations for evaluating different wireless communication technologies for ITS different applications can serve as a complement. In this paper we present results from lab measurements conducted on the CVIS hardware platform equipped with the upcoming standard IEEE 802.11p. We have measured the packet error rate versus the signal-to-noise ratio (SNR) for different packet lengths. This lab measurement is the first step towards an outdoor measurement campaign which also considers interference. The outdoor measurements will then be fed into a computer simulator together with a realistic channel model for evaluating the scalability of VANETs in a highway scenario.
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| 8. |
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| 9. |
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- 2019
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Journal article (peer-reviewed)
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