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  • 551.
    Adelsvärd, Viveka
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Virtual participants as communicative resources in discussions on gene technology2004In: The IADA Conference,2001, Tübingen: Max Niemeyer Verlag , 2004, p. 275-Conference paper (Refereed)
  • 552.
    Adelsvärd, Viveka
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Virtual participants as communicative resources in discussions on gene technology2004In: Dialogue Analysis VIII: Understanding and Misunderstanding in Dialogue: Selected Papers from the 8th IADA Conference, Göteborg 2001 / [ed] Karin Aijmer, Tübingen: Max Niemeyer Verlag , 2004, p. 275-286Chapter in book (Other academic)
    Abstract [en]

    The present collection of articles, presented at the 8th IADA Conference in Göteborg, focuses on understanding and misunderstanding as dialogic phenomena. The notion of a dialogic grammar and dialogic principles as a framework for understanding human communication and cognition is explored in several contributions. Misunderstanding in dialogue is dealt with in institutional and non-institutional settings, in fiction and film dialogue, from several different theoretical perspectives

  • 553.
    Adelsvärd, Viveka
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    "Who is Talking?" Some Thoughts on Speakers, Voices and Virtual Participants2000In: Creative Crossroads - Electronic Honorary Publication Dedicated to Yvonne Wærn on Her Retirement, Linköping: Tema Kommunikation, Linköpings universitet , 2000Chapter in book (Other academic)
    Abstract [en]

       

  • 554.
    Adelsvärd, Viveka
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Är det verkligen fult att skvallra? Några reflexioner över värderingen av en genre.2000In: Sett och hört :: en vänskrift tillägnad Kerstin Nordenstam på 65-årsdagen / [ed] Nordenstam, Kerstin,, Göteborg: Institutionen för svenska språket, Göteborgs universitet , 2000, p. -316Chapter in book (Other academic)
  • 555.
    Adelsvärd, Viveka
    et al.
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Aronsson, Karin
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Child Studies.
    Linell, Per
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Discourse of blame. Courtroom construction of social reality from the perspective of the defendant.1988In: Semiotica, ISSN 0037-1998, E-ISSN 1613-3692, Vol. 71, p. 261-284Article in journal (Refereed)
  • 556.
    Adelsvärd, Viveka
    et al.
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Nilholm, Claes
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    "... so one can plant a little seed" : an analysis of a teacher's way of solving a communicative problem in talks with parents2000In: Nordisk Pedagogik, ISSN 0901-8050, E-ISSN 1504-2995, Vol. 20, no 4, p. 191-205Article in journal (Other academic)
  • 557.
    Adelsvärd, Viveka
    et al.
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Nilholm, Claes
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Who is Cindy? Aspects of identity work in a teacher-parent-pupil talk at a special school2000In: Text - an interdisciplinary journal for the study of discourse, ISSN 0165-4888, Vol. 20, no 4, p. 545-568Article in journal (Refereed)
    Abstract [en]

    The article presents a case study of one teacher-parent-pupil (TPP) conference. Cindy, the pupil, has Down syndrome. A study of how people with verbal communication problems manage discursive practices that largely rely on the ability to verbally negotiate identity is clearly motivated, both from a theoretical and a more practice-oriented perspective. We found that Cindy's identity is described and talked about in terms of predefined aspects, codified in a written agenda. All participants oriented themselves towards some sort of cultural model of the ideal identity that does not have to be discursively justified. Cindy's identity is not only talked about, but also demonstrated and enacted in interaction. Her self-presentation is mediated by her mother, and this mediation is linked to the sequential organization of the turn-taking system and the way the participation framework becomes organized. Cindy's talked-about and demonstrated identity work does not only concern her as an individual. It is also a relationship presentation. The identity of Cindy as a pupil and a daughter implies a certain identity for a teacher and a mother. To help one's daughter present her identity in a favorable way is to simultaneously display the identity of a good mother. ⌐ Walter de Gruyter.

  • 558.
    Adelsvärd, Viveka
    et al.
    Linköping University, Department of Thematic Studies, Department of Communications Studies. Linköping University, Faculty of Arts and Sciences.
    Sachs, Lisbeth
    Linköping University, Department of Thematic Studies.
    Framtida skuggor: samtal om risk, prevention och den genetiska familjen2002Book (Other academic)
    Abstract [sv]

    Hur kommer mitt liv att gestalta sig? Kommer jag att vara frisk och stark? Kan jag göra något för att påverka ödet? Den moderna läkekonsten försöker på olika sätt att besvara sådana frågor. Ständigt utvecklas nya metoder för att tidigt avslöja hälsorisker.

    Att konfronteras med hot om framtida sjukdom kan vara dramatiskt och omtumlande. Så är det för den kvinna som får reda på att den bröstcancer hennes mamma dog av kan vara ärftlig och därmed hota henne själv eller hennes barn. Så är det också för den man som ser livet förkortat när blodprovet avslöjar ett alarmerande värde.

    Men hur påverkas vi av genetisk kartläggning eller upplysning om konsekvenserna av en viss livsstil? Kan kunskap om möjliga sjukdomsförlopp rent av vara skadlig? Hur förstår människor den information som uttrycks i: "Du har 50 procents risk att utveckla cancer"? Den här boken visar hur vanliga människor reagerar i sådana situationer.

  • 559.
    Adelswärd, Viveka
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Norrby, Catrin: Vardagligt berättande. Form, funktion och förekomst (1998).1998In: Språk & Stil, ISSN 1101-1165, Vol. 8, p. 214-218Article in journal (Other academic)
  • 560.
    Adelswärd, Viveka
    Linköping University, The Tema Institute, Department of Communications Studies. Linköping University, Faculty of Arts and Sciences.
    Styles of success: On impression management as collaborative action in job interviews1988Doctoral thesis, monograph (Other academic)
    Abstract [en]

    The research reported in this study takes both a general descriptive approach - investigating the characteristics of 48 job interviews - and a comparative one - analyzing ways in which those who got a job offer differed from those who did not. Data used in this study are tape recordings of job interviews with applicants for trainee-positions with a large Swedish business corporation. Additional data are tape-recordings of post-interviews made by the researcher with the applicants as well as questionnaires from the interviewers.

    The theoretical nations of self presentation and impression management (Goffman) have been the main points of departure for this study. All communication invalves impression,management. but job interviews focus explicidy on this aspect of interaction. Job interviews can be seen as argumentations where the applicants are actively trying to support their claim that they are perfect for the job. Their argumentations are enacted in a dialogue, however, and the applicants' ways of arguing are thus dependent on the interviewers' contributions to the dialogue. Communication is a constant handling of conflicting demands. The particular solution to these conversational dilemmas manifests itself as a personal style.

    Three main empirical analyses of the data were performed. The first concemed itself with the structure of the job interview. What does it look like and how is it managed? The analyses show that the responsibility for maintaining the global structure lies almost completely with the interviewer, hut that the applicant has the responsibility for managingthe local structure, for feeding interesting detalls in to the interview.

    The second set of analyses was concerned with the ways in which the applicants actively argued for themselves. The results show that the successful applicants qualify their claims more forcefully, by modifications, explicit analysis or humour, for instance. The successfulapplicants also receive more interactive assistance from the interviewers.

    The third set of analyses aimed at investigating some aspects of the interactive elimate in relation to the interviewers' different interviewing styles. The ways in which the interviewers paused and used simultaneous talk had a decisive influence on the length of the applicants' answers. The interactive element of interviewing was once more demonstrated in the analysis of laughter; in the interviews with the successful applicants there was more mutual laughter than in the interviews with the nonsuccessful applicants. The different interviewers' styles were recognized and described accurately by the applicants hut were valued differently.

    The main significance of the study is the demonstration of the interactive element in dialogue. The interviewers are in a certain sense actively creating the grounds on which they are to base their decision to hire the applicants or not.

  • 561.
    Adelswärd, Viveka
    et al.
    Linköping University, The Tema Institute, Department of Communications Studies. Linköping University, Faculty of Arts and Sciences.
    Economou, Konstantin
    Linköping University, The Tema Institute, Department of Communications Studies. Linköping University, Faculty of Arts and Sciences.
    Forstorp, Per-Anders
    Linköping University, The Tema Institute, Department of Communications Studies. Linköping University, Faculty of Arts and Sciences.
    Linell, Per
    Linköping University, The Tema Institute, Department of Communications Studies. Linköping University, Faculty of Arts and Sciences.
    Samtal i samhället: på vems villkor1997In: Rhetorica Scandinavica, ISSN 1397-0534, no 1, p. 38-43Article in journal (Refereed)
    Abstract [sv]

    Det offentliga samtalets dynamik och förändring står i blickpunkten för projektet Samtal i samhället. På vems villkor? Forfattarnas intresse är att med dialogteoretiska och samtalsanalytiska begrepp och metoder studera dynamiken inom och mellan olika offentliga arenor. Delprojekten inriktar sig på diskurser där frågor om ansvar, säkerhet och risk, moral och politik står i fokus. Artikeln avslutas med en jämförelse mellan retorik och kommunikationsforskning.

  • 562.
    Adelswärd, Viveka
    et al.
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Holsánová, Jana
    Lunds universitet.
    Wibeck, Victoria
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute.
    Virtual talk as a communicative resource. Explorations in the field of gene technology2002In: Sprachtheorie und Germanistische Linguistik, ISSN 1218-5736, Vol. 12Article in journal (Other academic)
  • 563.
    Adelswärd, Viveka
    et al.
    Linköping University, Faculty of Arts and Sciences. Linköping University, Department of Thematic Studies, Department of Communications Studies.
    Nilholm, Claes
    Linköping University, Faculty of Arts and Sciences. Linköping University, Department of Thematic Studies, Department of Communications Studies.
    Discourse about Children with Mental Disablement: An Analysis of Teacher-Parent Conferences in Special Education Schools1998In: Language and education : an international journal, Vol. 12, no 2, p. 81-98Article in journal (Refereed)
  • 564.
    Adelswärd, Viveka
    et al.
    Linköping University, Faculty of Arts and Sciences. Linköping University, Department of Science and Technology, Communications and Transport Systems.
    Sachs, L.
    Sachs, L..
    The messenger's dilemmas - Giving and getting information in genealogical mapping for hereditary cancer2003In: Health, Risk and Society, ISSN 1369-8575, E-ISSN 1469-8331, Vol. 5, no 2, p. 125-138Article in journal (Refereed)
    Abstract [en]

    Recent advances in genetic research can provide constructive preventive possibilities for individuals and society but also provide physicians and laypersons with new problems. For instance, in consultations dealing with the risk of getting hereditary cancer, physicians have to balance between the role of clinician, attending to the needs of a certain individual, and the role of researcher, collecting vital data for important research. Individuals taking part in these consultations not only have to interpret the information provided by the physicians. They might also be faced with the problem of informing others, often close kin, in a similar risk situation, or on the physician's behalf obtain information from them. They do not only receive bad news about themselves but are placed in a messenger's dilemma. The study is based on discourse data from 31 audio-taped talks between a physician and a person seeking information. Analyses of the consultations reveal how individuals seeking information about possible future diseases find themselves in a position where not only informing unknowing relatives, but also obtaining information from them, is experienced as giving them bad news.

  • 565.
    Adelswärd, Viveka
    et al.
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Sachs, Lisbeth
    Linköping University, The Tema Institute.
    Risk Discourse: Recontextualization of numerical values1998In: Text & talk : an interdisciplinary journal of language, discourse & communication studies, ISSN 1860-7330, Vol. 18, no 2, p. 191-210Article in journal (Refereed)
    Abstract [en]

      

  • 566.
    Adelswärd, Viveka
    et al.
    Linköping University, The Tema Institute, Department of Communications Studies. Linköping University, Faculty of Arts and Sciences.
    Sparrman, Anna
    Linköping University, The Tema Institute, Department of Child Studies. Linköping University, Faculty of Arts and Sciences.
    Cromdal, Jakob
    Linköping University, The Tema Institute, Department of Child Studies. Linköping University, Faculty of Arts and Sciences.
    Evaldsson, Ann-Carita
    Linköping University, Department of Behavioural Sciences and Learning. Linköping University, Faculty of Educational Sciences.
    Den väsentliga vardagen2009In: Den väsentliga vardagen: Några diskursanalytiska perspektiv på tal, text och bild, Stockholm: Carlssons , 2009, 1, p. 9-12Chapter in book (Other academic)
    Abstract [sv]

    Här ger arton forskare som alla varit doktorander till professor Karin Aronsson sin beskrivning av olika former av vardagliga fenomen. Det handlar om hur människor i olika sammanhang samspelar och skapar mening. Gemensamt för de författare som bidrar i boken är att de är eller har varit doktorander vid Institutionen Barn och tema Kommunikation, vid Linköpings universitet. Sedan mitten av 1980-talet har institutionen erbjudit en dynamisk forskningsmiljö för personer med intresse för samtal, kulturella uttryck och socialt liv i och utanför institutionella sammanhang.

  • 567.
    Adelswärd, Viveka
    et al.
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, Department of Communications Studies.
    Öberg, Britt-Marie
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute.
    The function of laughter and joking in negotiation activities1998In: Humor: An International Journal of Humor Research, ISSN 0933-1719, E-ISSN 1613-3722, Vol. 11, no 4, p. 411-430Article in journal (Refereed)
  • 568.
    Adelöf, Anna
    et al.
    Fackspråk och informatik, Regler och tillstånd, Socialstyrelsen.
    Lindberg, Christina
    Fackspråk och informatik, Regler och tillstånd, Socialstyrelsen.
    Barlow, Lotti
    Fackspråk och informatik, Regler och tillstånd, Socialstyrelsen.
    Gerdin, Ulla
    Fackspråk och informatik, Regler och tillstånd, Socialstyrelsen.
    Bränd Persson, Kristina
    Fackspråk och informatik, Regler och tillstånd, Socialstyrelsen.
    Ericsson, Erika
    Fackspråk och informatik, Regler och tillstånd, Socialstyrelsen.
    Testi, Stefano
    Fackspråk och informatik, Regler och tillstånd, Socialstyrelsen.
    Nyström, Mikael
    Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology.
    Förvaltning av SNOMED CT som en del i det nationella fackspråket för vård och omsorg2011Report (Other (popular science, discussion, etc.))
    Abstract [sv]

    Förvaltningsrapporten fokuserar på Snomed CT, eftersom det redan i dag finns rutiner för förvaltningar av termbanken och nationella hälsorelaterade klassifikationer. Ett särskilt utvecklingsarbete kommer att krävas för dessa delar.

    Rapporten tar upp syfte och mål med förvaltningen. Utöver det redogör rapporten för vilka konkreta ansvarsområden som ingår i förvaltningen av Snomed CT. Målet för förvaltningen är att Socialstyrelsen regelbundet ska kunna tillhandahålla en kontrollerad och uppdaterad release av Snomed CT. Det skulle möjliggöra användning inom vård och omsorg. Rapporten tar även upp behovet av kompetens, utbildning och finansiella resurser.

  • 569.
    Adeniji, Anna
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, The Department of Gender Studies.
    Alla säger I Love You. Om orden som gör känslor och känsliga formuleringar.2007In: Bang : feministisk kulturtidskrift, ISSN 1102-4593, Vol. 3, p. 91-93Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Artikeln handlar om hur orden "jag älskar dig" respektive "I love you" får betydelse både personligt, socialt och politiskt. Exempel hämtas från tv-serierna "Förhäxad" och "Sex and the City" och författaren resonerar kring hur orden skapar affektiva betydelser i kropp och genuspositioner. 

  • 570.
    Adeniji, Anna
    Linköping University, The Tema Institute, The Department of Gender Studies. Linköping University, Faculty of Arts and Sciences.
    Inte den typ som gifter sig?: Feministiska samtal om äktenskapsmotstånd2008Doctoral thesis, monograph (Other academic)
    Abstract [en]

    Den här avhandlingen undersöker frågan om äktenskapsmotstånd i dagens svenska samhälle, media och kultur. Boken belyser olika sätt att uttrycka äktenskapsmotstånd och vad det betyder att formulera feministisk kritik av normerande familjevärderingar.

    Undersökningen baseras på etnografi och kritisk kulturanalys och granskar synen på äktenskap, relationer och familj som ett kulturellt imaginärt fält. Det empiriska materialet består av intervjuer med kvinnor som inte har velat gifta sig, liksom ett brett material från tv, webbsidor, dagstidningar, skvallerpress och bloggar.

    I avhandlingen genomförs och presenteras en feministisk metodologisk process, grundat i akademiskt kreativt och självreflexivt skrivande. Detta innebär att skrivprocessen, textformatet, liksom minnesarbete, olika intervjutekniker och andra kreativa analytiska praktiker är en del av det metodologiska ramverket.

    De teoretiska perspektiven som ligger till grund för denna studie består av flera feministiska strömningar: radikalfeminism, queerfeminism, liberealfeminism, anarkafeminism och ett socialt rättviseperspektiv. De belyser, på olika sätt, intersektioner mellan äktenskap, genus, sexualitet, nationalitet, klass och makt. En gemensam utgångspunkt är att identitetskategorier, möjligheter att agera liksom vår plats i världen är konstruerade av maktrelationer och normativa föreställningar om genus. Dessa perspektiv tillhandahåller analytiska verktyg för att diskutera och dekonstruera kulturella föreställningar om äktenskap och äktenskapsmotstånd.

  • 571.
    Adeniji, Anna
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, The Department of Gender Studies.
    När Brad och Angelina inte ville gifta sig. En berättelse om heterosexuell melankoli och politiska beslut i vardagen.2007In: Bang : feministisk kulturtidskrift, ISSN 1102-4593, Vol. 1, p. 39-41Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

     Artikeln handlar om skvallerpressens representation av celebriteterna Brad Pitt och Angelina Jolie, och hur deras icke-gifta status producerar moralpanik och genusproblem i den populärkulturella heteronormativiteten. Artikeln tar också upp "äktenskapsfrågan" i en svensk kontext och hur frågan om äktenskapsmotstånd glömts bort av feminismen.  

  • 572.
    Adeniji, Anna
    Linköping University, Faculty of Arts and Sciences. Linköping University, The Tema Institute, The Department of Gender Studies.
    Ordningsstörande begär: biteori som kritik av antropologisk sexualitetsforskning.2001In: Lambda Nordica: Tidskrift om homosexualitet, ISSN 1100-2573, Vol. 5 1/2, no Både och/ och/ varken eller, p. 54-69Article in journal (Other academic)
  • 573.
    Adero, Gloria
    et al.
    Linköping University, Department of Management and Engineering, Business Administration.
    Liu, Jun
    Linköping University, Department of Management and Engineering, Business Administration.
    Maintaining Competitiveness Through Strategic Alliances: Case Study of Equity Bank Kenya2011Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background: The Kenyan financial sector has recently been growing at high rate due to the inclusion of individuals who previously were unable access banking services. This has led to a competitive situation where banks and micro finance institutions are searching for ways to manage in this competitive sector. In addition, mobile phone companies are now considered as a competitive threat.

    Aim:

    This study will look into how strategic alliances between banks and mobile phone companies can be used to overcome these challenges with a specific focus on the recent alliance between Equity Bank (Kenya), and Safaricom Ltd. The study will also focus on the management of strategic alliances within different industries.

    Method:

    The analysis of this study is based on qualitative research including the use of interviews with members of both organizations and secondary data which includes written documentation and analysis of previously recorded discussions about the alliance with different members of both organizations.

    Results:

    The authors found strategic alliances can be used as a tool which enables firms to overcome threats from their competitors while gaining additional benefits. In terms of alliance management, the use of separate teams was found to be an effective management tool in cross industry alliances.

  • 574.
    Adham, Khalis Ibrahim
    Linköping University, Department of Education.
    Planning Higher Education in IRAQ I: Planning Medical Education1975Doctoral thesis, monograph (Other academic)
  • 575.
    Adib Yaghmaie, Farnaz
    et al.
    Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, Faculty of Science & Engineering. Nanyang Technol Univ, Singapore.
    Movric, Kristian Hengster
    Czech Tech Univ, Czech Republic.
    Lewis, Frank L.
    Univ Texas Arlington, TX 76019 USA; Northeastern Univ, Peoples R China.
    Su, Rong
    Nanyang Technol Univ, Singapore.
    Differential graphical games for H-infinity control of linear heterogeneous multiagent systems2019In: International Journal of Robust and Nonlinear Control, ISSN 1049-8923, E-ISSN 1099-1239, Vol. 29, no 10, p. 2995-3013Article in journal (Refereed)
    Abstract [en]

    Differential graphical games have been introduced in the literature to solve state synchronization problem for linear homogeneous agents. When the agents are heterogeneous, the previous notion of graphical games cannot be used anymore and a new definition is required. In this paper, we define a novel concept of differential graphical games for linear heterogeneous agents subject to external unmodeled disturbances, which contain the previously introduced graphical game for homogeneous agents as a special case. Using our new formulation, we can solve both the output regulation and H-infinity output regulation problems. Our graphical game framework yields coupled Hamilton-Jacobi-Bellman equations, which are, in general, impossible to solve analytically. Therefore, we propose a new actor-critic algorithm to solve these coupled equations numerically in real time. Moreover, we find an explicit upper bound for the overall L2-gain of the output synchronization error with respect to disturbance. We demonstrate our developments by a simulation example.

  • 576.
    Adibi Dahaj, Marjan
    Linköping University, Department of Culture and Communication. Linköping University, Faculty of Arts and Sciences.
    Analyzing Learners' Language Awareness in Written Production: Product-Oriented vs. Process-Oriented Approaches2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Writing is one of the four skills that students learning a foreign language are supposed to acquire, and writing often has an important role in the language classroom. Furthermore, in the field of cultural and arts education, a process-oriented approach is considered essential for learning. However, even though we see an increased interest in emphasizing the writing process, in reality, what is often commented, discussed and graded is the final outcome - the product. Consequently, features of the writing process, like fluency, revisions, and pauses, are not considered. This thesis explores what information about the writing process might add to the picture. In this manner, the current study investigates the writing process of advanced Swedish EFL (English as a Foreign Language) learners through keystroke logging programme.

    With the increased use of word processing tools, and not least with the development of keystroke logging tools, we now have the possibility to take also the details of the writing process into account. As Spelman Miller and Sullivan (2006:1) point out,

    “[a]s an observational tool, keystroke logging offers the opportunity to capture details of the activity of writing, not only for the purposes of the linguistic, textual and cognitive study of writing, but also for the broader applications concerning the development of language learning, literacy, and language pedagogy”.

    In the present study, a keystroke logging programme named Inputlog has been used, which allows researchers to get a better understanding of writing processes as well as cognitive processes during writing (Lindgren & Sullivan, 2002).

  • 577.
    Adil, Mohammed Yasin
    et al.
    Univ Oslo, Norway; Norwegian Dry Eye Clin, Norway.
    Xiao, Jiaxin
    Univ Oslo, Norway; Norwegian Dry Eye Clin, Norway.
    Olafsson, Jonatan
    Univ Oslo, Norway.
    Chen, Xiangjun
    Univ Oslo, Norway; Norwegian Dry Eye Clin, Norway; Arendal Hosp, Norway; Vestre Viken Hosp Trust, Norway; Univ Coll Southeast Norway, Norway.
    Lagali, Neil
    Linköping University, Department of Clinical and Experimental Medicine, Division of Neuro and Inflammation Science. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Anaesthetics, Operations and Specialty Surgery Center, Department of Ophthalmology in Linköping.
    Raeder, Sten
    Norwegian Dry Eye Clin, Norway.
    Utheim, Oygunn A.
    Oslo Univ Hosp, Norway.
    Dartt, Darlene A.
    Harvard Med Sch, MA 02115 USA.
    Utheim, Tor P.
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Medicine and Health Sciences. Univ Oslo, Norway; Vestre Viken Hosp Trust, Norway; Univ Coll Southeast Norway, Norway; Oslo Univ Hosp, Norway; Oslo Univ Hosp, Norway; Oslo Univ Hosp, Norway.
    Meibomian Gland Morphology Is a Sensitive Early Indicator of Meibomian Gland Dysfunction2019In: American Journal of Ophthalmology, ISSN 0002-9394, E-ISSN 1879-1891, Vol. 200, p. 16-25Article in journal (Refereed)
    Abstract [en]

    PURPOSE: To investigate the relationship between meibomian gland (MG) morphology and clinical dry eye tests in patients with meibomian gland dysfunction (MGD). DESIGN: Cross-sectional study. SUBJECTS: Total 538 MGD patients and 21 healthy controls. METHODS: MG loss on meibography images of upper (UL) and lower lids (LL) was graded on a scale of 0 (lowest degree of MG loss) to 3. MG length, thickness, and interglandular space in the UL were measured. Clinical tests included meibum expression and quality, tear film break-up time, ocular staining, osmolarity, Schirmer I, blink interval timing, and Ocular Surface Disease Index (OSDI) questionnaire. RESULTS: Mean UL and LL meibogrades were significantly higher in MGD patients compared to controls (P amp;lt; .001 for UL and LL). The sensitivity and specificity of the meibograde as a diagnostic parameter for MGD was 96.7% and 85%, respectively. Schirmer I was significantly increased in MGD patients with meibograde 1 compared to patients with meibograde 0, 2, and 3 in the UL (P amp;lt; .05 ). MG thickness increased with higher meibograde (P amp;lt; .001). MG morphology correlated significantly but weakly with several clinical parameters (P amp;lt; .05). OSDI did not correlate with any MG morphologic parameter. CONCLUSIONS: Grading of MG loss using meibograde effectively diagnoses MGD. Compensatory mechanisms such as increased aqueous tear production and dilation of MGs make early detection of MGD difficult by standard clinical measures of dry eye, whereas morphologic analysis of MGs reveals an early stage of MGD, and therefore represents a complementary clinical parameter with diagnostic potential. (C) 2018 Elsevier Inc. All rights reserved.

  • 578.
    Adini, B.
    et al.
    Tel Aviv University, Israel.
    Bodas, M.
    Tel Aviv University, Israel.
    Nilsson, Heléne
    Linköping University, Department of Clinical and Experimental Medicine, Division of Surgery, Orthopedics and Oncology. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center for Disaster Medicine and Traumatology.
    Peleg, K.
    Tel Aviv University, Israel; Gertner Institute Health Policy and Epidemiol, Israel.
    Policies for managing emergency medical services in mass casualty incidents2017In: Injury, ISSN 0020-1383, E-ISSN 1879-0267, Vol. 48, no 9, p. 1878-1883Article in journal (Refereed)
    Abstract [en]

    Introduction: Diverse decision-making is needed in managing mass casualty incidents (MCIs), by emergency medical services (EMS). The aim of the study was to review consensus among international experts concerning policies of EMS management during MCIs. Methods: Applicability of 21 EMS policies was tested through a 2-cycle modified e-Delphi process, in which 38 multi-disciplinary experts from 10 countries participated. Threshold for approving proposed solutions was defined as consensus of amp;gt;80%. Policies that did not achieve the targeted consensus were reviewed to detect variability according to respondents origin country. Results: 16 policies were endorsed in the first cycle including collaboration between ambulance service providers; implementing a unified mode of operation; preparing criteria for ground versus aerial evacuation; and, developing support systems for caregivers exposed to violence. An additional policy which proposed that senior EMS officers should not necessarily act as on-site MCI commanders was endorsed in the second cycle. Demographic breakdown of views concerning non-consensual policies revealed differences according to countries of origin. Assigning ambulances to off-duty team members was highly endorsed by experts from Israel and South Africa and strongly rejected by European respondents. Avoiding entry to risk areas until declared safe was endorsed by European, Asian and Oceanic experts, but rejected by Israeli, South African and North American experts. Conclusions: Despite uniqueness of countries and EMS agencies, solutions to most dilemmas were applicable to all organizations, regardless of location or affiliation. Cultural diversity was found concerning readiness to implement military-civilian collaboration in MCIs and a rigid separation between work-leisure responsibilities. (C) 2017 Elsevier Ltd. All rights reserved.

  • 579.
    Adiththan, Arun
    et al.
    CUNY, NY 10019 USA.
    Ramesh, S.
    Gen Motors RandD, MI 48090 USA.
    Samii, Soheil
    Linköping University, Department of Computer and Information Science, Software and Systems. Linköping University, Faculty of Science & Engineering. Gen Motors RandD, MI 48090 USA.
    Cloud-assisted Control of Ground Vehicles using Adaptive Computation Offloading Techniques2018In: PROCEEDINGS OF THE 2018 DESIGN, AUTOMATION and TEST IN EUROPE CONFERENCE and EXHIBITION (DATE), IEEE , 2018, p. 589-592Conference paper (Refereed)
    Abstract [en]

    The existing approaches to design efficient safety critical control applications is constrained by limited in-vehicle sensing and computational capabilities. In the context of automated driving, we argue that there is a need to leverage resources "out-of-the-vehicle" to meet the sensing and powerful processing requirements of sophisticated algorithms (e.g., deep neural networks). To realize the need, a suitable computation offloading technique that meets the vehicle safety and stability requirements, even in the presence of unreliable communication network, has to be identified. In this work, we propose an adaptive offloading technique for control computations into the cloud. The proposed approach considers both current network conditions and control application requirements to determine the feasibility of leveraging remote computation and storage resources. As a case study, we describe a cloud-based path following controller application that leverages crowdsensed data for path planning.

  • 580.
    Adjiashvili, David
    et al.
    ETH, Switzerland.
    Bosio, Sandro
    ETH, Switzerland.
    Li, Yuan
    Lund University, Sweden.
    Yuan, Di
    Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, The Institute of Technology.
    Exact and Approximation Algorithms for Optimal Equipment Selection in Deploying In-Building Distributed Antenna Systems2015In: IEEE Transactions on Mobile Computing, ISSN 1536-1233, E-ISSN 1558-0660, Vol. 14, no 4, p. 702-713Article in journal (Refereed)
    Abstract [en]

    We consider a combinatorial optimization problemin passive In-Building Distributed Antenna Systems (IB-DAS) deployment for indoor mobile broadband service. These systems have a tree topology, in which a central base station is connected to a number of antennas located at tree leaves via cables represented by the tree edges. Each inner node corresponds to a power equipment, of which the available types differ in the number of output ports and/or by power gain at the ports. This paper focuses on the equipment selection problemthat amounts to, for a given passive DAS tree topology, selecting a power equipment type for each inner node and assigning the outgoing edges of the node to the equipment ports. The performance metric is the power deviation at the antennas from the target values. We consider as objective function the minimization of either the total or the largest power deviation over all antennas. Our contributions are the development of exact pseudo-polynomial time algorithms and (additive) fully-polynomial time approximation schemes for both objectives. Numerical results are provided to illustrate the algorithms. We also extend some results to account for equipment cost.

  • 581.
    Adlam, David
    et al.
    Univ Leicester, England; Glenfield Hosp, England.
    Alfonso, Fernando
    Hosp Univ La Princess, Spain.
    Maas, Angela
    Radboud Univ Nijmegen, Netherlands.
    Vrints, Christiaan
    Univ Antwerp, Belgium.
    al-Hussaini, Abtehale
    Univ Leicester, England; Glenfield Hosp, England.
    Bueno, Hector
    CNIC, Spain; Hosp Univ 12 Octubre, Spain.
    Capranzano, Piera
    Univ Catania, Italy.
    Gevaert, Sofie
    Ghent Univ Hosp, Belgium.
    Hoole, Stephen P.
    Papworth Hosp, England.
    Johnson, Tom
    Univ Hosp Bristol NHS Fdn Trust, England.
    Lettieri, Corrado
    ASST Mantova Osped Carlo Poma, Italy.
    Maeder, Micha T.
    Kantonsspital St Gallen, Switzerland.
    Motreff, Pascal
    Univ Clermont Auvergne, France.
    Ong, Peter
    Robert Bosch Krankenhaus, Germany.
    Persu, Alexandre
    Catholic Univ Louvain, Belgium.
    Rickli, Hans
    Kantonsspital St Gallen, Switzerland.
    Schiele, Francois
    Univ Burgundy Franche Comte, France.
    Sheppard, Mary N.
    St Georges Univ London, England; St Georges Hosp NHS Trust, England.
    Swahn, Eva
    Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
    European Society of Cardiology, acute cardiovascular care association, SCAD study group: a position paper on spontaneous coronary artery dissection ESC-ACCA Position Paper on spontaneous coronary artery dissection2018In: European Heart Journal, ISSN 0195-668X, E-ISSN 1522-9645, Vol. 39, no 36, p. 3353-+Article in journal (Refereed)
    Abstract [en]

    n/a

  • 582.
    Adler Johannesson, AnnHelen
    Linköping University, Department of Culture and Communication.
    Att lära med många sinnen: Pedagogers erfarenheter av att arbeta med elever i gymnasiesärskolan2011Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The subject of my paper is to examine the experiences of teachers using a multi-sensory teaching approach when working with pupils with learning disabilities in upper secondary school. How can they create a creative learning environment for their students? Do they use any multisensory teaching methods and, if so, how? My methodology has mainly consisted in participating observation and semi-structured interviews in an ethnographic study. Analysis has shown that the significance of a successful educational effort with these young people at upper secondary school can be seen as a good practice, in which phenomena such as individual objectives, experience, interest, participation, multi-sensory learning, experiential learning, visualization and learning from each other, are central and essential elements. My view is that the teachers try to vary their learning environments and that they are using different multi-sensory teaching methods. All the day-to-day schoolwork is set-up in different theme modules, where teaching takes place both indoors and outdoors in wilderness and cultivated landscapes. For further research, it might be interesting to find out if the lessons learned from one learning environment can be transferred to another, and if the social experiences and lessons learned in multi-sensory environments will be transferred to the young people’s everyday home life or to their schoolwork, in general.

  • 583.
    Adlercreutz, Anna
    et al.
    Linköping University, Department of Computer and Information Science.
    Ahlstedt, Oskar
    Linköping University, Department of Computer and Information Science.
    Bengtsson, Linnéa
    Linköping University, Department of Computer and Information Science.
    Månsson, Andreas
    Linköping University, Department of Computer and Information Science.
    Romell, Gustaf
    Linköping University, Department of Computer and Information Science.
    Stigson, Isak
    Linköping University, Department of Computer and Information Science.
    Sund, Tobias
    Linköping University, Department of Computer and Information Science.
    Wedlund, Lisa
    Linköping University, Department of Computer and Information Science.
    En praktisk studie kring utvecklingen av webbapplikationen Studentlunchen2015Independent thesis Basic level (degree of Bachelor), 12 credits / 18 HE creditsStudent thesis
    Abstract [en]

    This report declares the experiences and results arrived from the development process around the e-shop Studentlunchen. Studentlunchen is a web application to be used by students to order lunch during weekdays. In order to make Studentlunchen as user friendly and intuitive as possible the e-shop has been developed with focus on functionality and an attractive design. In the report there is a technical description regarding the web application together with a discussion concerning the developed solutions. Furthermore the report discusses and evaluates the working process Scrum and how it has been used. As a result of complying with the Scrum methodology to deliver working functionality after every sprint, focus has been directed towards achieving this instead of implementing many features that isn’t fully completed. With thorough development of the initial prototype, the basic idea of the design and functionality surrounding Studentlunchen could be kept throughout the development process. This was one of the great contributors to the projects overall success and helped the team achieve the goal to make a user-friendly web application.

  • 584.
    Adlers, M
    et al.
    Linkoping Univ, Dept Math, SE-58183 Linkoping, Sweden.
    Bjorck, A
    Linkoping Univ, Dept Math, SE-58183 Linkoping, Sweden.
    Matrix stretching for sparse least squares problems2000In: Numerical Linear Algebra with Applications, ISSN 1070-5325, E-ISSN 1099-1506, Vol. 7, no 2, p. 51-65Article in journal (Refereed)
    Abstract [en]

    For linear least squares problems min(x) parallel to Ax - b parallel to(2) where A is sparse except for a few dense rows, a straightforward application of Cholesky or QR factorization will lead to catastrophic fill in the factor R. We consider handling such problems by a matrix stretching technique, where the dense rows are split into several more sparse rows. We develop both a recursive binary splitting algorithm and a more general splitting method. We show that for both schemes the stretched problem has the same set of solutions as the original least squares problem. Further. the condition number of the stretched problem differs from that of the original by only a modest factor, and hence the approach is numerically stable. Experimental results from applying the recursive binary scheme to a set of modified matrices from the Harwell-Boeing collection are given. We conclude that when A has a small number of dense rows relative to its dimension, there is a significant gain in sparsity of the factor R. A crude estimate of the optimal number of splits is obtained by analysing a simple model problem. Copyright (C) 2000 John Wiley & Sons, Ltd.

  • 585.
    Adlersson, Patrik
    et al.
    Linköping University, Department of Production Economics.
    Blomdahl, Patrik
    Linköping University, Department of Production Economics.
    Hedge Fund Style Allocation: A Risk Adjusted Fund of Hedge Fund Perspective2005Independent thesis Basic level (professional degree)Student thesis
    Abstract [en]

    The purpose of the thesis has been to explore the use of hedge fund styles when constructing portfolios of hedge funds (i.e. funds of hedge funds). The central question is if the use of hedge fund styles can significantly explain and improve risk adjusted returns (characterized by Sharpe ratios). The study has been done in collaboration with Optimized Portfolio Management AB who desire further knowledge and evaluation of hedge fund styles for their fund of hedge funds.

    To be able to create successful ex ante portfolios we have explored various prediction models for both risk and return. Our findings indicate that return prediction is problematic using simple models such as regression since the risk exposure of the indices appear to change significantly over time. One can however using exponentially weighted moving averages (EWMA) achieve relatively promising estimations of future returns.

    Covariance matrix estimation seems to be more straightforward. We have achieved promising results using both traditional EWMA models as well as improved estimators using principal component analysis.Covariance prediction models were evaluated separately using a minimum-variance portfolio optimization technique and provided a significant risk reduction compared to the aggregated hedge fund universe (represented by a naively diversified portfolio). Combinations of risk and return prediction models were evaluated using traditional mean-variance portfolio construction methods, which were optimized for Sharpe ratios. These provided a significant increase in risk adjusted returns relative to the aggregated hedge fund universe. The allocation is however discouraging due to serious instability over time.

    Our findings indicate that there indeed is an advantage of taking hedge fund styles into consideration when constructing funds of hedge funds in a risk adjusted perspective. However, further research into return prediction needs to be done in order to stabilize portfolio allocation. An alternative seems to be tactical style allocation on a more fundamental analysis basis.

  • 586.
    Adli, Abouzeedan
    et al.
    Innovation and Entrepreneurship, Institute of Medicine, Sahlgrenska Academy University of Gothenburg, Sweden.
    Klofsten, Magnus
    Linköping University, Department of Management and Engineering, Project Innovations and Entrepreneurship. Linköping University, The Institute of Technology. Linköping University, HELIX Vinn Excellence Centre.
    Hedner, Thomas
    Innovation and Entrepreneurship, Institute of Medicine Sahlgrenska Academy, University of Gothenburg, Sweden.
    Internetisation Management as a Facilitator for Managing Innovation in High Technology Smaller Firms2013In: Global Business Review, ISSN 0972-1509, E-ISSN 0973-0664, Vol. 14, no 1, p. 121-136Article in journal (Refereed)
    Abstract [en]

    Managing innovation in smaller firms imposes challenges of specific nature. Such challenges include: scarcity of resources for R&D and innovation activities, complexity of scientific fields, coordinating innovation activities with the operational functions of the firm and availability of access to up-to-date scientific excellence. A question of importance should be raised as to how one can use the recent development in information and communication technologies (ITCs) to meet these challenges and to facilitate innovation activities in small and medium-sized enterprises (SMEs), specially the high- technology smaller firms (HTSFs), as these use innovation as their major competitive edge. In this conceptual paper we proposed using a newly introduced management paradigm, namely “internetisation management” to achieve the said. In the article we discussed the different challenges of innovation in HTSFs and how these challenges can be meet when adapting the internetisation management paradigm. The work shed the light on the need for a coupling between management and innovation studies in relation to SMEs while taking in consideration the e-globalized nature of the modern economy. It addresses in a more particular way HTSFs need for that coupling.

  • 587.
    Admassie, S.
    et al.
    Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics . Linköping University, The Institute of Technology.
    Inganäs, Olle
    Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics . Linköping University, The Institute of Technology.
    Electrochromism in diffractive conducting polymer gratings2004In: Journal of the Electrochemical Society, ISSN 0013-4651, E-ISSN 1945-7111, Vol. 151, no 6Article in journal (Refereed)
    Abstract [en]

    The electrochromic polymer poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate) (PEDOT-PSS) spin-coated on ITO/glass was patterned with a soft lithographic method in order to diffract the incident light and thereby modify absorption of light by the film to improve the electrochromic efficiency of the polymer. The absorbance peak at around 610 nm was found to be much higher in the patterned PEDOT-PSS film than the one observed in the unpatterned film. Values of coloration efficiencies varying from 107 to 174 cm2/C were obtained for three different unpatterned PEDOT-PSS films, whereas for three different patterned PEDOT-PSS films higher values ranging from 211 to 371 cm2/C were found. These increased values of the electrochromic efficiencies are attributed to diffraction. © 2004 The Electrochemical Society. All rights reserved.

  • 588.
    Admassie, Shimelis
    et al.
    Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering. University of Addis Ababa, Ethiopia.
    Ajjan, Fátima
    Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
    Elfwing, Anders
    Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
    Inganäs, Olle
    Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
    Biopolymer hybrid electrodes for scalable electricity storage2016In: Materials Horizons, ISSN 2051-6347, E-ISSN 2051-6355, Vol. 3, no 3, p. 174-185Article, review/survey (Refereed)
    Abstract [en]

    Powering the future, while maintaining a cleaner environment and a strong socioeconomic growth, is going to be one of the biggest challenges faced by mankind in the 21st century. The first step in overcoming the challenge for a sustainable future is to use energy more efficiently so that the demand for fossil fuels can be reduced drastically. The second step is a transition from the use of fossil fuels to renewable energy sources. In this sense, organic electrode materials are becoming increasingly attractive compared to inorganic electrode materials which have reached a plateau regarding performance and have severe drawbacks in terms of cost, safety and environmental friendliness. Using organic composites based on conducting polymers, such as polypyrrole, and abundant, cheap and naturally occurring biopolymers rich in quinones, such as lignin, has recently emerged as an interesting alternative. These materials, which exhibit electronic and ionic conductivity, provide challenging opportunities in the development of new charge storage materials. This review presents an overview of recent developments in organic biopolymer composite electrodes as renewable electroactive materials towards sustainable, cheap and scalable energy storage devices.

  • 589.
    Admassie, Shimelis
    et al.
    Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, The Institute of Technology.
    Elfwing, Anders
    Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, The Institute of Technology.
    Jager, Edwin
    Linköping University, Department of Physics, Chemistry and Biology, Biosensors and Bioelectronics. Linköping University, The Institute of Technology.
    Bao, Qinye
    Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry. Linköping University, The Institute of Technology.
    Inganäs, Olle
    Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, The Institute of Technology.
    A renewable biopolymer cathode with multivalent metal ions for enhanced charge storage2014In: JOURNAL OF MATERIALS CHEMISTRY A, ISSN 2050-7488, Vol. 2, no 6, p. 1974-1979Article in journal (Refereed)
    Abstract [en]

    A ternary composite supercapacitor electrode consisting of phosphomolybdic acid (HMA), a renewable biopolymer, lignin, and polypyrrole was synthesized by a simple one-step simultaneous electrochemical deposition and characterized by electrochemical methods. It was found that the addition of HMA increased the specific capacitance of the polypyrrole-lignin composite from 477 to 682 F g(-1) ( at a discharge current of 1 A g(-1)) and also significantly improved the charge storage capacity from 6(to 128 mA h g(-1).

  • 590.
    Admassie, Shimelis
    et al.
    Addis Ababa University.
    Inganäs, Olle
    Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics .
    Mammo, Wendimagegn
    Chalmers university of Technology.
    Perzon, Erik
    Chalmers university of Technology.
    Andersson, Mats R
    Chalmers university of Technology.
    Electrochemical and optical studies of the band gaps of alternating polyfluorene copolymers2006In: Synthetic metals, ISSN 0379-6779, E-ISSN 1879-3290, Vol. 156, no 7-8, p. 614-623Article in journal (Refereed)
    Abstract [en]

    The electrochemical and optical properties of a series of alternating polyfluorene copolymers with low band gaps were determined. These polymers incorporated fluorene units alternating with groups including electron-withdrawing (A) and electron-donating (D) groups in donor-acceptor-donor (DAD) sequence to achieve the lowering of band gaps. The polymers were solvent-casted on platinum disk electrode and the band gaps were estimated from cyclic voltammetry (CV). These values were compared with values obtained from optical absorption measurements. Although the electrochemically determined band gaps were found to be slightly higher than the optical band gap in most cases, values are well correlated. The values of the band gaps determined range from 2.1 to 1.3 eV. © 2006 Elsevier B.V. All rights reserved.

  • 591. Admassie, Shimelis
    et al.
    Yacob, Zekarias
    Zhang, Fengling
    Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics .
    Mammo, Wendimagegn
    Yohannes, Teketel
    Solomon, Theodros
    Synthesis, optical and electrochemical characterization of anthrancene and benzothiadiazole-containing polyfluorene copolymers2006In: Bulletin of the Chemical Society of Ethiopia, ISSN 1011-3924, E-ISSN 1726-801X, Vol. 20, no 2, p. 309-317Article in journal (Refereed)
    Abstract [en]

    New solution-processable, anthrancene- and benzothiadiazole-containing polyfluorene copolymers (P1-P3) have been synthesized and characterized. The preparation and characterization of the corresponding blue light-emitting devices are also reported. Polymers P2 and P3 show high photoluminescence efficiency while polymer P2 does not show any significant light emission up to 8.0 V. The results show the need for balance of electron and hole transport in polymer light emitting diodes.

  • 592.
    Admassie, Shimelis
    et al.
    Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, The Institute of Technology.
    Yang Nilsson, Ting
    University of Addis Ababa, Ethiopia.
    Inganas, Olle
    University of Addis Ababa, Ethiopia.
    Charge storage properties of biopolymer electrodes with (sub)tropical lignins2014In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 16, no 45, p. 24681-24684Article in journal (Refereed)
    Abstract [en]

    The electrochemical and charge storage properties of different lignins inside biopolymer electrodes were studied and correlated with the chemical variations of the lignins as indicated from the nuclear magnetic resonance (NMR) spectroscopic data. The varying fractions of monolignols were found to correlate with charge storage properties. It was found that as the sinapyl to guaiacyl (S/G) ratio increased both the specific capacitance and charge capacity increased considerably. This indicates that quinones generated on S-units can contribute more to charge storage in the biopolymer electrodes.

  • 593.
    Admassie, Shimelis
    et al.
    IFM Linköpings universitet.
    Zhang, Fengling
    Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics .
    Manoj, A.G.
    IFM Linköpings universitet.
    Svensson, Mattias
    Chalmers university of Technology.
    Andersson, Mats R
    Chalmers university of Technology.
    Inganäs, Olle
    Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics .
    A polymer photodiode using vapour-phase polymerized PEDOT as an anode2005In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, E-ISSN 1879-3398, Vol. 90, p. 133-141Article in journal (Refereed)
    Abstract [en]

      

  • 594. Admyre, Lena
    et al.
    Norgren, C
    Perers, L
    Åkerlind, Ingemar
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Department of Health and Society, General Practice. Östergötlands Läns Landsting, Local Health Care Services in the West of Östergötland, Unit of Research and Development in Local Health Care, County of Östergötland.
    Teamarbete på vårdcentral - en viktig grund för rehabilitering av patienter med besvär från rörelseorganen i primärvården2003In: Allmänmedicin, ISSN 0281-3513, Vol. 24, p. 76-80Article in journal (Other academic)
  • 595.
    Admyre, Lena
    et al.
    Östergötlands Läns Landsting, Local Health Care Services in Central Östergötland. Linköping University, Faculty of Health Sciences.
    Wåhlin-Norgren, Charlotte
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Department of Health and Society, Division of Physiotherapy. Linköping University, Department of Medical and Health Sciences.
    Rehabilitering i primärvård av patienter med besvär från rörelseorganen : slutrapport från samverkansprojektet Linköpingsmodellen. Del 2, Utvärdering och slutsatser2001Report (Other (popular science, discussion, etc.))
  • 596.
    Admyre, Lena
    et al.
    Östergötlands Läns Landsting, Local Health Care Services in Central Östergötland.
    Wåhlin-Norgren, Charlotte
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Department of Health and Society, Division of Physiotherapy. Linköping University, Department of Medical and Health Sciences.
    Rehabilitering i primärvård av patienter med besvär från rörelseorganen: slutrapport från samverkansprojektet Linköpingsmodellen. Del. 1, Bakgrund och projektbeskrivning.2001Report (Other (popular science, discussion, etc.))
  • 597.
    Admyre, Lena
    et al.
    Östergötlands Läns Landsting, Local Health Care Services in Central Östergötland. Linköping University, Faculty of Health Sciences.
    Wåhlin-Norgren, Charlotte
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Department of Health and Society, Division of Physiotherapy. Linköping University, Department of Medical and Health Sciences.
    Åkerlind, Ingemar
    Linköping University, Department of Medical and Health Sciences. Linköping University, Faculty of Arts and Sciences.
    Perers, Lars
    Östergötlands Läns Landsting, Local Health Care Services in Central Östergötland, Primary Health Care Centres. Linköping University, Faculty of Health Sciences.
    Teamarbete på vårdcentral - en viktig grund för rehabilitering av patienter med besvär från rörelseorganen i primärvården: Team work as a method for rehabilitation of patients with musculoskeletal diseases2003In: Allmänmedicin, ISSN 0281-3513, Vol. 24, p. 76-80Article in journal (Other academic)
  • 598.
    Adnan, Muhammad
    Linköping University, Department of Computer and Information Science, Human-Centered systems. Linköping University, The Institute of Technology.
    Usability Evaluation of Smart Phone Application Store2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    In this study, the usability of smart phone application store app is evaluated. The study was performed on different smart phone operating systems. Data about usability was gathered through surveys and think aloud based experiment. Anova analysis was also performed on data to identify significant issues. A lot of smartphone users reported issues with installing, locating and searching about apps. Many users had issues with uninstalling of apps and navigating the search results when looking for apps. The smartphone operating system and the app store does not provide seamless navigation and alot of content is not tailored for smart phone users.

  • 599.
    Adnane, Bouchaib
    Linköping University, Department of Physics, Chemistry and Biology, Surface and Semiconductor Physics . Linköping University, The Institute of Technology.
    Optical characterization of Silicon-based self-assembled nanostructures2010Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    This PhD thesis summarizes the work carried on the optical characterizations of some Si-based self-assembled nanostructures, particularly SiGe/Si quantum dots (QDs) and nanocrystalline (nc)-Si embedded in mesoporous silica (MS) using photoconductivity (PC), photoluminescence (PL), and photoluminescence excitation (PLE) measurements.

    The spectroscopic studies of SiGe/Si QDs grown on Si by molecular beam epitaxy revealed for the first time well-resolved PLE resonances. When correlated with numerical analysis, these resonances were directly related to the co-existence of spatially direct (inside the SiGe dot) and indirect (across the Si/Ge interface) recombination processes involving different dot populations selected by the monitored detection energy for PLE acquisition. The characteristics of these two transitions were further studied in detail by PLE (in some case implemented together with selective PL) on various samples, which contained either only one Ge dot layer or multiple Gedot/Si stacks, grown at substrate temperatures ranging from 430 to 580 °C; especially the temperature- and excitation power-dependence of the excitation properties. The results illustrated that the electronic structure of SiGe dots are influenced by size, Ge composition, as well as strain connected, and sometimes a mixed effect.

    Another attempt of the project was the fabrication of lateral transport mid-infrared photodetectors based on multiple Ge-dot/Si stacked structures. A broadband photoresponsivity of the processed multi-finger detectors was estimated to be about 90 mA/W over 3-15 μm range at 20 K, and the peaked photoresponse was measured at ~10 μm. The origin of the measured photocurrent, as elucidated by photoluminescence and photoluminescence excitation spectroscopies, was related to intersubband absorption of normal incidence infrared radiation corresponding to energies between the ground states of the heavy hole and the light hole in the valence band of the SiGe/Si QDs, and subsequent charge transfer to the Ge 2D wetting layer acting as a conduction channel. The absence of photocurrent in the energy range expected for a transition from the ground state to the first excited state of the heavy hole indicated that the holes in the SiGe dots behave essentially as 2D in character rather than a truly 3D confinement, where the transitions between heavy holes states are not allowed for TE polarized radiation (normal incidence).

    Finally, Si(or Ge) nanocrystals embedded in mesoporous silica samples prepared by spincoating and atomic layer chemical vapor deposition were optically investigated by means of PL with various excitation powers, together with several attempts using different post rapid thermal annealing processes. The shape and energy position of the PL spectra of the nc-Si embedded in MS samples and a reference MS template without nc incorporation were rather similar, but the luminescence was much more intense for those embedded with nanocrystals. This implies that the emission mechanism for MS samples with or without nc-Si could be the same, i.e., the light emission was governed by the surface properties of silica. The semiconductor nanocrystals played a role by sensitizing the luminescence emission through generating more photo-excited carriers. These carriers were then trapped in the defect state e.g. the interfacial oxygen defect sites and subsequently recombine to increase the PL intensity.

    List of papers
    1. Mid/far-infrared detection using a MESFET with B-modulation doped Ge-dot/SiGe-well multiple stacks in the channel region
    Open this publication in new window or tab >>Mid/far-infrared detection using a MESFET with B-modulation doped Ge-dot/SiGe-well multiple stacks in the channel region
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    2004 (English)Conference paper, Published paper (Refereed)
    Abstract [en]

    Multiple modulation-doped Ge-dot/SiGe-QW stack structures were grown using MBE, and processed as FET devices for mid/far infrared detection. From a non-optimized device, a broadband photoresponse has been observed in the mid-infrared range of 3-15 μm. A peak responsivity was estimated to be as high as 100 mA/W at T= 20 K. This work indicates that SiGE QD/QW structures using the lateral transport geometry can be a potential candidate for photodetectors operating in far-infrared range.

    Place, publisher, year, edition, pages
    IEEE, 2004
    National Category
    Natural Sciences
    Identifiers
    urn:nbn:se:liu:diva-53202 (URN)10.1109/GROUP4.2004.1416702 (DOI)0-7803-8474-1 (ISBN)
    Conference
    First IEEE International Conference on Group IV Photonics
    Available from: 2010-01-19 Created: 2010-01-19 Last updated: 2010-04-28
    2. Origin of photoresponse at 8-14 μm in stacks of self-assembled SiGe/Si quantum dots
    Open this publication in new window or tab >>Origin of photoresponse at 8-14 μm in stacks of self-assembled SiGe/Si quantum dots
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    2009 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235XArticle in journal (Other academic) Submitted
    Abstract [en]

    A normal incidence photodetector operating at 8-14 μm is demonstrated using p-type δ-doped SiGe dot multilayer structures grown by molecular beam epitaxy on Si(001) substrates. Based on the experimental results of photoluminescence and photoluminescence excitation spectroscopies together with numerical analysis, the origin of the measured photocurrent was attributed to intersubband optical transitions between the heavy hole and light hole states of the valence band of the self-assembled SiGe dots and subsequent lateral transport of photo-excited carriers in the conduction channels formed by Ge wetting layers.

    National Category
    Natural Sciences
    Identifiers
    urn:nbn:se:liu:diva-53203 (URN)
    Available from: 2010-01-19 Created: 2010-01-19 Last updated: 2017-12-12
    3. Spatially direct and indirect transitions of self-assembled SiGe/Si quantum dots studied by photoluminescence excitation spectroscopy
    Open this publication in new window or tab >>Spatially direct and indirect transitions of self-assembled SiGe/Si quantum dots studied by photoluminescence excitation spectroscopy
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    2010 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 96, no 18, p. 181107-Article in journal (Refereed) Published
    Abstract [en]

    Well-resolved photoluminescence excitation (PLE) spectra are reported for selfassembled SiGe dots grown on Si(100) by molecular beam epitaxy. The observation of two excitation resonance peaks is attributed to two different excitation/de-excitation routes of interband optical transitions connected to the spatially direct and indirect recombination processes. It is concluded that two dot populations are addressed by each monitored luminescence energy for the PLE acquisition.

    Keywords
    Ge-Si alloys, luminescence, molecular beam epitaxial growth, self-assembly, semiconductor quantum dots
    National Category
    Natural Sciences
    Identifiers
    urn:nbn:se:liu:diva-53204 (URN)10.1063/1.3424789 (DOI)000277422000007 ()
    Note
    Original Publication: Bouchaib Adnane, Fredrik Karlsson, Göran Hansson, Per-Olof Holtz and Wei-Xin Ni, Spatially direct and indirect transitions of self-assembled SiGe/Si quantum dots studied by photoluminescence excitation spectroscopy, 2010, Applied Physics Letters, (96), 18, 181107. http://dx.doi.org/10.1063/1.3424789 Copyright: American Institute of Physics http://www.aip.org/ Available from: 2010-01-19 Created: 2010-01-19 Last updated: 2017-12-12
    4. Photoluminescence excitation spectroscopy of self-assembled SiGe/Si quantum dots
    Open this publication in new window or tab >>Photoluminescence excitation spectroscopy of self-assembled SiGe/Si quantum dots
    Show others...
    2009 (English)Manuscript (preprint) (Other academic)
    Abstract [en]

    Photoluminescence excitation (PLE) experiments are reported for various self-assembled SiGe/Si dot samples grown on Si(001) by molecular beam epitaxy at substrate temperatures ranging from 430 to 580 C. Two excitation peaks were observed, and the characteristics of the involved optical transitions were studied in detail by PLE (in one case implemented together with selective photoluminescence, SPL) on different samples containing either only one SiGe dot layer or multiple SiGe-dot/Si stacks. The temperature- and power-dependence of the excitation properties together with the results of six-band k.p calculations support the assignment of the observed PLE peaks to spatially direct and indirect transitions collected from two different SiGe dot populations.

    National Category
    Natural Sciences
    Identifiers
    urn:nbn:se:liu:diva-53205 (URN)
    Available from: 2010-01-19 Created: 2010-01-19 Last updated: 2015-01-23
    5. Photoluminescence study of nanocrystalline-Si(Ge) embedded in mesoporous silica
    Open this publication in new window or tab >>Photoluminescence study of nanocrystalline-Si(Ge) embedded in mesoporous silica
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    2009 (English)In: Solid-State Electronics, ISSN 0038-1101, E-ISSN 1879-2405, Vol. 53, no 8, p. 862-864Article in journal (Refereed) Published
    Abstract [en]

    Photoluminescence (PL) properties of mesoporous silica (MS) samples incorporated with Si or Ge nanocrystals (nc) have been investigated with various excitation powers and post-RTA processes. The analysis of experimental results revealed a superlinear intensity dependence (m = 1.7) in the MS reference sample without nanocrystals, while a sublinear behavior (m = 0.8) is observed for the nc-Si in MS. It thus suggests the same recombination responsible for the luminescence at similar to 2.75 eV for both samples, but different kinetic limitations for the carrier transfer processes. Si nanocrystals play in this case an important role in generating more photo-excited carriers, enhancing the PL intensity.

    Keywords
    Mesoporous silica, Nanocrystals, Photoluminescence, Power dependence, Thermal annealing
    National Category
    Natural Sciences
    Identifiers
    urn:nbn:se:liu:diva-19884 (URN)10.1016/j.sse.2009.04.014 (DOI)
    Note
    Original Publication: Bouchaib Adnane, Yi-Fan Lai, Jia-Min Shieh, Per-Olof Holtz and Wei-Xin Ni, Photoluminescence study of nanocrystalline-Si(Ge) embedded in mesoporous silica, 2009, SOLID-STATE ELECTRONICS, (53), 8, 862-864. http://dx.doi.org/10.1016/j.sse.2009.04.014 Copyright: Elsevier Science B.V., Amsterdam. http://www.elsevier.com/ Available from: 2009-08-14 Created: 2009-08-14 Last updated: 2017-12-13
  • 600.
    Adnane, Bouchaib
    et al.
    Linköping University, Department of Physics, Chemistry and Biology, Surface and Semiconductor Physics . Linköping University, The Institute of Technology.
    Elfving, Anders
    Linköping University, Department of Physics, Chemistry and Biology, Surface and Semiconductor Physics . Linköping University, The Institute of Technology.
    Zhao, Ming
    Linköping University, Department of Physics, Chemistry and Biology, Surface and Semiconductor Physics . Linköping University, The Institute of Technology.
    Larsson, Mats
    Linköping University, Department of Physics, Chemistry and Biology. Linköping University, The Institute of Technology.
    Magnuson, Bengt
    Linköping University, Department of Physics, Chemistry and Biology. Linköping University, The Institute of Technology.
    Ni, Wei-Xin
    Linköping University, Department of Physics, Chemistry and Biology, Surface and Semiconductor Physics . Linköping University, The Institute of Technology.
    Mid/far-infrared detection using a MESFET with B-modulation doped Ge-dot/SiGe-well multiple stacks in the channel region2004Conference paper (Refereed)
    Abstract [en]

    Multiple modulation-doped Ge-dot/SiGe-QW stack structures were grown using MBE, and processed as FET devices for mid/far infrared detection. From a non-optimized device, a broadband photoresponse has been observed in the mid-infrared range of 3-15 μm. A peak responsivity was estimated to be as high as 100 mA/W at T= 20 K. This work indicates that SiGE QD/QW structures using the lateral transport geometry can be a potential candidate for photodetectors operating in far-infrared range.

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