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Sökning: WFRF:(Åström Fredrik)

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1.
  • Ericsson, Olle, et al. (författare)
  • Clinical validation of a novel automated cell-free DNA screening assay for trisomies 21, 13, and 18 in maternal plasma.
  • 2019
  • Ingår i: Prenatal diagnosis. - : Wiley. - 1097-0223 .- 0197-3851. ; 39:11, s. 1011-1015
  • Tidskriftsartikel (refereegranskat)abstract
    • To evaluate clinical performance of a new automated cell-free (cf)DNA assay in maternal plasma screening for trisomies 21, 18, and 13, and to determine fetal sex.Maternal plasma samples from 1200 singleton pregnancies were analyzed with a new non-sequencing cfDNA method, which is based on imaging and counting specific chromosome targets. Reference outcomes were determined by either cytogenetic testing, of amniotic fluid or chorionic villi, or clinical examination of neonates.The samples examined included 158 fetal aneuploidies. Sensitivity was 100% (112/112) for trisomy 21, 89% (32/36) for trisomy 18, and 100% (10/10) for trisomy 13. The respective specificities were 100%, 99.5%, and 99.9%. There were five first pass failures (0.4%), all in unaffected pregnancies. Sex classification was performed on 979 of the samples and 99.6% (975/979) provided a concordant result.The new automated cfDNA assay has high sensitivity and specificity for trisomies 21, 18, and 13 and accurate classification of fetal sex, while maintaining a low failure rate. The study demonstrated that cfDNA testing can be simplified and automated to reduce cost and thereby enabling wider population-based screening.
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2.
  • Åström, Fredrik, et al. (författare)
  • Citation patterns in educational research
  • 2014
  • Ingår i: Assessing Quality in European Educational Research: Indicators and Approaches. - Wiesbaden : Springer Fachmedien Wiesbaden. - 9783658059699 ; , s. 85-106
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
    • The purpose of this study is to investigate citation structures in educational research; and also, to study the visibility of European educational research. Bibliometric analyses are performed on data from Web of Science, the EERQI Content Base and Google Scholar, investigating both characteristics of publications through frequencies and distributions, as well as citation structures through cocitation analyses. The results show fragmented citation patterns presenting little opportunity to detect robust evidence of visibility or impact of contemporary educational research on any level of aggregation other than field level. This should be interpreted considering the diverse nature of educational research, and an organization of the field that differs from a strong norm, not the least in research evaluation programs, of research essentially being a cumulative process.
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3.
  • Åström, Fredrik, et al. (författare)
  • Foreword
  • 2009
  • Ingår i: Celebrating Scholarly Communication Studies: A Festschrift for Olle Persson at his 60th Birthday. ; 05-S June 2009, s. 5-7
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)
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5.
  • Larsson, Stefan, et al. (författare)
  • HÅLLBAR AI : Inventering av kunskapsläget för etiska, sociala och rättsliga utmaningar med artificiell intelligens
  • 2019
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • Detta är en inventering av kunskapsläget för etiska, sociala, och rättsliga utmaningar med artificiell intelligens, utfört i ett Vinnovafinansierat projekt lett av Anna Felländer. Baserat på en kartläggning av rapporter och studier, en kvantitativ och bibliometrisk analys, och områdesfördjupningar inom vård och hälsa, telekom, och digitala plattformar ges tre rekommendationer: Hållbar AI kräver att vi 1. fokuserar regleringsfrågor i vid mening, 2. stimulerar mångvetenskap och samverkan, samt att 3. tillitsbyggande i användningen av samhällsapplicerad artificiell intelligens och maskininlärning är centralt och kräver mer kunskap i relationen mellan transparens och ansvar.
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6.
  • Anderson, Theresa Dirndorfer, et al. (författare)
  • Storying Research : Conducting Research in New Formats and New Voices
  • 2014
  • Ingår i: iConference 2014 Proceedings. - : IDEALS/iSchools. ; , s. 1223-1226, s. 1223-1226
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • The session engages with an acute tension evident in scholarly communication: We are witnessing a great deal of innovation and experimentation in relation to the way research is performed and shared. The push towards, and need for, innovation and creativity in academic research is being emphasized to an ever increasing extent. A rich set of digital tools and transdisciplinary engagements have opened the door for research conducted and reported in increasingly hybridised, dynamic and interactive ways. At the same time, academic research is increasingly being evaluated by focusing on quantitative analyses based on publications; analyses which privilege established scholarly practices and publication venues. In the session, we are interested in exploring collectively on the one hand, the voice in and position from which we report on research and - indeed - conduct research. On the other hand, how do we use documents and artefacts to tell our stories? Digital media provide new affordances through a broader selection of modes of representation to present data, results and argumentation. The session is conducted as a 'conversation café', where each café table focuses on one aspect of these opportunities.
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8.
  • Carlsson, Hanna, et al. (författare)
  • Consumer Credit Behavior in the Digital Context : A Bibliometric Analysis and Literature Review
  • 2017
  • Ingår i: Journal of Financial Counceling and Planning. - : Springer Publishing Company. - 1052-3073 .- 1947-7910. ; 28:1, s. 76-94
  • Tidskriftsartikel (refereegranskat)abstract
    • This literature review seeks to map the state of research on the effects of digitization on personal financial behavior and management through a bibliometric analysis and a systematic literature review. The findings indicate that current knowledge is primarily based on perspectives of actors in commerce and systems development. More research is needed on how personal financial behavior change in relation to digital technology, the vulnerability of children and adolescents, and the links between changes in credit behavior and indebtedness. Financial counseling could benefit from an awareness of young adults vulnerability as digital consumers and an extended perception of financial literacy that encompasses requirements of digital society. Policymakers need to be aware of the consequences of digital measurability.
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10.
  • Carlsson, Hanna, et al. (författare)
  • Over-Indebtedness and Consumption Patterns in Digital Society – A Research Review
  • 2015
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • This LUii report presents a research review of the field of over-indebtedness and consumption patterns in digital society, which addresses phenomena such as e-commerce, smart phones and their role in consumption and credit, new methods of payment, debt-incurrence and more. The research review has been produced by researchers at Lund University on behalf of the Swedish Enforcement Authority, why it also is in part using Sweden as a case study. The research was conducted during 2014 and primarily includes three sub-studies of somewhat different approaches to provide as comprehensive and accurate an overview of current research in the field as possible: 1) a bibliometric study, 2) a systematic literature review, and 3) additional searches which also include reports written in Swedish, studies and books. A general conclusion drawn from all sub-studies is that research on over-indebtedness and research on digital development are often conducted within different disciplines that share little contact. One consequence of this, with regards to the review materials and results, is that research on potential opportunities created by digital technology in the credit and financial markets is not linked to the emergence of problematic financial situations in the individual. The potential links between these areas therefore deserves further scientific examination. For example, the results indicate that international research on debt and consumer behavior in a digital context is largely conducted from a systemic or business-oriented perspective, and deals only to a minor degree with consumer vulnerability and other negative aspects for the individual. This means that the economic/business-oriented perspective dominates in the research on debt incurrence in digital contexts. Furthermore, young adults comprise the population group that is repeatedly mentioned as particularly vulnerable to the implications of digital technology in consumption and debt. Stefan Larsson, Head of Lund University Internet Institute (LUii), PhD in sociology of law and PhD in spatial planning, has acted as project manager for this research review. Co-researchers for this project were Hanna Carlsson, PhD in information science, and Fredrik Åström, Assoc Prof and bibliometrician.
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