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Sökning: LAR1:lu > Blekinge Tekniska Högskola

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  • Abdelraheem, Mohamed Ahmed, et al. (författare)
  • Executing Boolean queries on an encrypted Bitmap index
  • 2016
  • Ingår i: CCSW 2016 - Proceedings of the 2016 ACM Cloud Computing Security Workshop, co-located with CCS 2016. - Association for Computing Machinery (ACM). - 9781450345729 ; s. 11-22
  • Konferensbidrag (refereegranskat)abstract
    • We propose a simple and efficient searchable symmetric encryption scheme based on a Bitmap index that evaluates Boolean queries. Our scheme provides a practical solution in settings where communications and computations are very constrained as it offers a suitable trade-off between privacy and performance.
  • Ali, Nauman Bin, et al. (författare)
  • Testing Highly Complex System of Systems: An Industrial Case Study
  • 2012
  • Ingår i: [Host publication title missing]. - ACM. - 978-1-4503-1056-7 ; s. 211-220
  • Konferensbidrag (refereegranskat)abstract
    • Context: Systems of systems (SoS) are highly complex and are integrated on multiple levels (unit, component, system, system of systems). Many of the characteristics of SoS (such as operational and managerial independence, integration of system into system of systems, SoS comprised of complex systems) make their development and testing challenging. Contribution: This paper provides an understanding of SoS testing in large-scale industry settings with respect to challenges and how to address them. Method: The research method used is case study research. As data collection methods we used interviews, documentation, and fault slippage data. Results: We identified challenges related to SoS with respect to fault slippage, test turn-around time, and test maintainability. We also classified the testing challenges to general testing challenges, challenges amplified by SoS, and challenges that are SoS specific. Interestingly, the interviewees agreed on the challenges, even though we sampled them with diversity in mind, which meant that the number of interviews conducted was sufficient to answer our research questions. We also identified solution proposals to the challenges that were categorized under four classes of developer quality assurance, function test, testing in all levels, and requirements engineering and communication. Conclusion: We conclude that although over half of the challenges we identified can be categorized as general testing challenges still SoS systems have their unique and amplified challenges stemming from SoS characteristics. Furthermore, it was found that interviews and fault slippage data indicated that different areas in the software process should be improved, which indicates that using only one of these methods would have led to an incomplete picture of the challenges in the case company.
  • Alvesund, Carolin (författare)
  • Att minska beroendet av motoriserade transporter : en fråga om att kunna och vilja!
  • 1998
  • Rapport (övrigt vetenskapligt)abstract
    • Rapporten behandlar (i) planeringsåtgärders potential att minska beroendet av motoriserade transporter, (ii) kommuners och länsstyrelsers intresse av att minska beroendet av motoriserade transporter och (iii) formella möjligheter att minska beroendet av motoriserade transporter. Nyckelord: Trafikplanering, Fysisk planering, Regional planering, Översiktsplan, Planinstrument, Tillgänglighet, Miljömål.
  • Andersson, Ewa K., et al. (författare)
  • Registered nurses views of caring in coronary care - a deductive and inductive content analysis.
  • 2015
  • Ingår i: Journal of Clinical Nursing. - Wiley-Blackwell. - 1365-2702. ; 24:23-24, s. 3481-3493
  • Tidskriftsartikel (refereegranskat)abstract
    • To extend nurses' descriptions of how they understood caring, as reflected in the findings of an earlier study (i.e. the hierarchical outcome space) and to gain additional understandings and perspectives of nurses' views of caring in relation to a coronary care patient case.
  • Andersson, Ewa Kazimiera, et al. (författare)
  • Standing alone when life takes an unexpected turn: being a midlife next of kin of a relative who has suffered a myocardial infarction.
  • 2013
  • Ingår i: Scandinavian Journal of Caring Sciences. - Wiley-Blackwell. - 1471-6712. ; 27:4, s. 864-871
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Suffering a myocardial infarction (MI) is a life-threatening event that impacts not only on the individual concerned but also on the next of kin. However, there seems to be a paucity of naturalistic inquiries that focus specifically on midlife next of kin and their experience of being close to a relative who has suffered an MI. This study aims to elucidate the experience of being a midlife next of kin of a relative who has suffered a myocardial infarction. METHOD: Nine women and four men in midlife participated in the focused interviews, which were conducted and analysed during 2010/2011 using Lindseths and Norbergs' description of the phenomenological hermeneutical method. FINDINGS: Four themes - Solely responsible, Lurking unease, Left out of the picture and Life on hold - formed the basis of the core theme Standing alone when life takes an unexpected turn. The core theme was interpreted as a central phenomenon encompassing the experience of being solely responsible for the well-being of their relative and the family, thus putting their own life on hold. The core theme also reflected the next of kin's experience of being left out of the picture when it came to the relative's care before and after the MI. CONCLUSION: The next of kin's negative feelings of standing alone were further intensified by their experience of being left out of the picture by the healthcare professionals concerning their relative's care. As a cardiac nurse, it would seem essential to have knowledge about the experiences of next of kin in connection with a relative's MI event. Such knowledge can facilitate the planning and organisation of nursing care and at the same time address the next of kin's role in the recovery and rehabilitation process.
  • Andersson, Ewa Kazimiera, et al. (författare)
  • The Experience of Younger Adults Following Myocardial Infarction.
  • 2013
  • Ingår i: Qualitative Health Research. - SAGE Publications Inc.. - 1049-7323.
  • Tidskriftsartikel (refereegranskat)abstract
    • Syftet med denna studie var att belysa meningsupplevelser för personer yngre än 55 år som överlevt sin första hjärtinfarkt. Vi har analyserat 17 intervjuer med fenomenologisk-hermeneutisk metod. Huvudtemat, och det centrala fenomenet var en daglig kamp för att återvinna balansen i livet, vilket inkluderar en existentiell, fysisk och emotionell kamp för att återfå fotfästet i dagligt liv. Efterspelet till denna livshotande händelse involverade en transition/förändringsprocess samtidigt som en ny livsmening skapades. Informanternas berättelser färgades av en energibrist som påverkade deras liv och interagerade med orimliga krav från arbetsgivare och vårdpersonal. Kunskapen från denna studie kan utgöra ett värdefullt tillskott till kvalitetsarbete inom omvårdnad och till utveckling av omvårdnadsinterventioner för hjärtrehabilitering av yngre personer efter hjärtinfarkt.
  • Andersson, Ewa, et al. (författare)
  • Registered nurses' descriptions of caring: a phenomenographic interview study.
  • 2015
  • Ingår i: BMC Nursing. - BioMed Central. - 1472-6955. ; 14
  • Tidskriftsartikel (refereegranskat)abstract
    • Nursing has come a long way since the days of Florence Nightingale and even though no consensus exists it would seem reasonable to assume that caring still remains the inner core, the essence of nursing. In the light of the societal, contextual and political changes that have taken place during the 21st century, it is important to explore whether these might have influenced the essence of nursing. The aim of this study was to describe registered nurses' conceptions of caring.
  • Andersson, Martin, et al. (författare)
  • Acquisitions of start-ups by incumbent businesses A market selection process of "high-quality" entrants?
  • 2016
  • Ingår i: Research Policy. - Elsevier. - 0048-7333. ; 45:1, s. 272-290
  • Tidskriftsartikel (refereegranskat)abstract
    • We analyze the frequency and nature by which new firms are acquired by established businesses. Acquisitions are often considered to reflect a technology transfer process and to also constitute one way in which a "symbiosis" between new technology-based firms (NTBFs) and established businesses is realized. Using a micro-level dataset for Sweden in which we follow new entrants up to 18 years after entry, we show that acquisitions of recent start-ups are rare and restricted to a small group of entrants with defining characteristics. Estimates from competing risks models show that acquired start-ups, in particular by multinational enterprises (MNEs), stand out from entrants that either remain independent or exit by being much more likely to be spin-offs operating in high-tech sectors, having strong technological competence, and having weak internal financial resources. Our overall findings support the argument that acquisitions primarily concern NTBFs in market contexts where entry costs are large, access to finance is important and incumbents have valuable complementary capabilities and resources. (C) 2015 Elsevier B.V. All rights reserved.
  • Andersson, Martin, et al. (författare)
  • Characteristics and performance of new firms and spinoffs in Sweden
  • 2013
  • Ingår i: Industrial and Corporate Change. - Oxford University Press. - 0960-6491. ; 22:1, s. 245-280
  • Tidskriftsartikel (refereegranskat)abstract
    • We analyse the rate of formation, the characteristics, and the performance of different types of new firms in Sweden over a decade. Comparisons with Denmark, Brazil, and the United States suggest that the environment for new firm formation in Sweden is not markedly different than elsewhere. In line with previous studies, spin-offs of incumbents perform better than other types of new firms, particularly if their parent firm continues to operate. A novel finding is that the larger the size of their parent, the greater is the rate of employment growth of spin-offs. This contrasts sharply with findings for firms with a single owner.
  • Andersson, Martin, et al. (författare)
  • Does spatial employment density spur inter-firm job switching?
  • 2013
  • Ingår i: The annals of regional science. - Springer. - 0570-1864. ; 51:1, s. 245-272
  • Tidskriftsartikel (refereegranskat)abstract
    • Inter-firm job switching of workers is a much cited but seldom measured source of the productivity advantages of spatial employment density. It has been advanced as a conduit for localized knowledge flows as well as labor market matching efficiency. Using a matched employer-employee dataset for Sweden, we estimate the influence spatial employment density has on the probability of inter-firm job switching of private sector workers. Our estimates suggest that a doubling of employment density per square kilometer increases the probability that a random worker switches employer by 0.2 % points. The same effect is substantially higher for more skilled workers. While the effect of a doubling of density is limited, the actual differences in density across the regions in our data amount to a factor over 40, rendering differences in density an important explanation for regional variations in rates of inter-firm job switching.
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