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  • 105501.
    Wiesel, Fredrika
    et al.
    Stockholm University, Faculty of Social Sciences, School of Business.
    Modell, Sven
    Stockholm University, Faculty of Social Sciences, School of Business.
    Moll, Jodie
    Customer Orientation and Resource Allocation in the Public Sector: a Garbage Can Analysis2008In: EIASM:s conference New Directions in Management Accounting in Brussels, Belgium, December 15-17, 2008Conference paper (Other (popular science, discussion, etc.))
  • 105502. Wiesendanger, Reto
    et al.
    Wacey, David
    Tulej, Marek
    Neubeck, Anna
    Stockholm University, Faculty of Science, Department of Geological Sciences.
    Ivarsson, Magnus
    Grimaudo, Valentine
    Moreno-Garcia, Pavel
    Cedeno-Lopez, Alena
    Riedo, Andreas
    Wurz, Peter
    Chemical and Optical Identification of Micrometer-Sized 1.9 Billion-Year-Old Fossils by Combining a Miniature Laser Ablation Ionization Mass Spectrometry System with an Optical Microscope2018In: Astrobiology, ISSN 1531-1074, E-ISSN 1557-8070, Vol. 18, no 8, p. 1071-1080Article in journal (Refereed)
    Abstract [en]

    The recognition of biosignatures on planetary bodies requires the analysis of the putative microfossil with a set of complementary analytical techniques. This includes localized elemental and isotopic analysis of both, the putative microfossil and its surrounding host matrix. If the analysis can be performed with spatial resolution at the micrometer level and ppm detection sensitivities, valuable information on the (bio)chemical and physical processes that influenced the sample material can be gained. Our miniaturized laser ablation ionization mass spectrometry (LIMS)-time-of-flight mass spectrometer instrument is a valid candidate for performing the required chemical analysis in situ. However, up until now it was limited by the spatial accuracy of the sampling. In this contribution, we introduce a newly developed microscope system with micrometer accuracy for Ultra High Vacuum application, which allows a significant increase in the measurement capabilities of our miniature LIMS system. The new enhancement allows identification and efficient and accurate sampling of features of micrometer-sized fossils in a host matrix. The performance of our system is demonstrated by the identification and chemical analysis of signatures of micrometer-sized fossil structures in the 1.9 billion-year-old Gunflint chert.

  • 105503.
    Wieslander, L
    Stockholm University, Faculty of Science, Department of Molecular Biology and Functional Genomics.
    The cell nucleus2004In: Experimental Cell research, Vol. 296, p. 1-3Article in journal (Refereed)
  • 105504.
    Wieslander, Lars
    et al.
    Stockholm University, Faculty of Science, Department of Molecular Biology and Functional Genomics.
    Björk, Petra
    Stockholm University, Faculty of Science, Department of Molecular Biology and Functional Genomics.
    Nucleocytoplasmic mRNP export is an integral part of mRNP biogenesis2011In: Chromosoma, ISSN 0009-5915, E-ISSN 1432-0886, Vol. 120, no 1, p. 23-38Article in journal (Refereed)
    Abstract [en]

    Nucleocytoplasmic export and biogenesis of mRNPs are closely coupled. At the gene, concomitant with synthesis of the pre-mRNA, the transcription machinery, hnRNP proteins, processing, quality control and export machineries cooperate to release processed and export competent mRNPs. After diffusion through the interchromatin space, the mRNPs are translocated through the nuclear pore complex and released into the cytoplasm. At the nuclear pore complex, defined compositional and conformational changes are triggered, but specific cotranscriptionally added components are retained in the mRNP and subsequently influence the cytoplasmic fate of the mRNP. Processes taking place at the gene locus and at the nuclear pore complex are crucial for integrating export as an essential part of gene expression. Spatial, temporal and structural aspects of these events have been highlighted in analyses of the Balbiani ring genes

  • 105505. Wiesniak, Marcin
    et al.
    Badziag, Piotr
    Zukowski, Marek
    Stockholm University, Faculty of Science, Department of Physics.
    Explicit form of correlation-function three-setting tight Bell inequalities for three qubits2007In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 76, no 1, p. 12110-Article in journal (Refereed)
    Abstract [en]

    We present a method to derive explicit forms of tight correlation-function Bell inequalities for three systems and dichotomic observables, which involve three settings for each observer. We also give sufficient and necessary conditions for quantum predictions to satisfy the new inequalities.

  • 105506.
    Wigen, Erika
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Special Education.
    Andersson, Tomas
    Stockholm University, Faculty of Social Sciences, Department of Special Education.
    En segregerad förskola: Hur social klass och bostadssegregation påverkar villkor för undervisning och lärande i förskolan – en intervjustudie2019Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
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  • 105507.
    Wigerius, Michael
    Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics.
    Roles of mammalian Scribble in polarity signaling, virus offense and cell-fate determination2010Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Mammalian Scribble is a target for proteins encoded by human papilloma virus, retro- and flaviviruses. Tick-borne encephalitis virus (TBEV) is a flavivirus that have evolved distinct strategies to escape antiviral responses. Information of how flaviviruses intrude on cell integrity comes from understanding of the roles that host-factors play when they interfere with viruses. The first part of this thesis describes a novel interaction between the TBEVNS5 protein and Scribble. The importance of the interaction was demonstrated by RNAi-mediated depletion of Scribble, which prevented suppression of JAK-STAT signaling by NS5. Together, these results define Scribble as a novel target for NS5.

    TBEV is known to cause central nervous system disease TBE in humans that can lead to cognitive dysfunction. A unifying theme in CNS related diseases are defects in neuronal extensions. We therefore addressed the effects of TBEV expression in PC12 cell differentiation, which is characterized by extensive neurite growth. Our data show that TBEVNS5 suppresses neurite outgrowth through the Rho GTPase Rac1. These findings provide evidence that Rac1 is an indirect target of NS5 in neurite inhibition. Scribble was recently implicated in spine morphogenesis. Thus, we tested the role of Scribble in neurite elongation. Depletion of Scribble in PC12 cells, reduced neurite density but increased length of those remaining. Moreover, Scribble bound components in the Ras/ERK cascade in a growth factor dependent manner. Together, these results demonstrate that Scribble controls neurite elongation by scaffolding MAPK components. Moreover, as loss of dendritic spines, actin-rich protrusions on neurons, is a feature in cognitive dysfunction we speculate that cognitive dysfunction in TBE might involve disturbed Scribble expression by NS5.

    We also investigated the binding between NS1 of Influenza A virus and Scribble. The PDZ domains of Scribble are usually selective for specific C-terminal motifs in proteins. Because NS1 has a canonical PDZ motif we tested if binding to Scribble depends on this motif. We found that Scribble binds NS1; the association is dependent on the NS1 C-terminus that is recognized by PDZ3-4 of Scribble. Together, these results suggest that Scribble is a target for the H5N1 NS1 protein 

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  • 105508.
    Wigerius, Michael
    et al.
    Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics.
    Johansson, Magnus
    Institutionen för livsvetenskaper, Södertörns Högskola.
    SCRIBBLE SCAFFOLDS KEY COMPONENTS IN NEURITE OUTGROWTHIMPLICATING DIRECT INVOLVEMENT IN CYTOSKELETON REGULATIONManuscript (preprint) (Other academic)
  • 105509.
    Wigerius, Michael
    et al.
    Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics.
    Melik, Wessam
    Stockholm University, Faculty of Science, Department of Genetics, Microbiology and Toxicology.
    Elväng, Annelie
    Södertörns högskola, Institutionen för livsvetenskaper.
    Johansson, Magnus
    Södertörns högskola, Institutionen för livsvetenskaper.
    Rac1 and Scribble are targets for the arrest of neurite outgrowth by TBE virus NS52010In: Molecular and Cellular Neuroscience, ISSN 1044-7431, E-ISSN 1095-9327, Vol. 44, no 3, p. 260-271Article in journal (Refereed)
    Abstract [en]

    Tick-borne encephalitis virus (TBEV) causes extensive CNS disease in humans known as TBE, however, relatively little is known of the molecular mechanisms for its progress. Here, we now show that TBEV produces defects in neuronal development of PC12 cells through a function of the viral NS5 protein. The methyltransferase domain of NS5 is critical and sufficient for restriction of nerve growth factor induced neurite outgrowth. This effect is reversed by expression of NS5 mutants unable to bind Scribble and unexpectedly, in Scribble depleted cells with binding-competent NS5. Furthermore, we also demonstrate that the Rho GTPase Rac1 and the guanine nucleotide-exchange factor, βPIX are outcompeted by NS5 for binding to Scribble, linking to effects on neurite outgrowth by TBEV. Together, these findings provide the first experimental evidence that Rac1 and βPIX are indirect targets of NS5 acting through the multifunctional polarity protein Scribble to oppose neuronal differentiation. In conclusion, our results offer a potential mechanism by which TBEV alters neuronal circuitry and opens new avenues for therapeutic interventions.

  • 105510.
    Wigg, Ulrika
    Stockholm University, Faculty of Humanities, Department of Education in Humanities and Social Sciences.
    Att analysera livsberättelser2009In: Handbok i kvalitativ analys. / [ed] Fejes, Andreas & Thornberg, Robert, Stockholm: Liber , 2009, 1, p. 198-215Chapter in book (Other academic)
  • 105511.
    Wigg, Ulrika
    Stockholm University, Faculty of Humanities, Department of Education in Humanities and Social Sciences.
    "Jaha, varför gör dom så?": Barn i migrationens tidsålder.2009In: Pedagogiska magasinet, ISSN 1401-3320, no 2, p. 38-43Article in journal (Other academic)
  • 105512.
    Wigg, Ulrika
    Stockholm University, Faculty of Humanities, Department of Education in Humanities and Social Sciences.
    Turist eller vagabond?2009In: Invandrare och minoriteter, ISSN 1404-6857, no 3, p. 27-32Article in journal (Other academic)
  • 105513.
    Wigge, Anna-Karin
    Stockholm University, Faculty of Social Sciences, Department of Psychology.
    Kompetent eller varm? Könsskillnader i självpresentation vid en fiktiv anställningsintervju2017Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Kompetens och värme är viktiga dimensioner vid bedömning av individer och grupper. Kvinnor uppfattas stereotypt som varma och män som kompetenta. I studien undersöktes om det i en fiktiv anställningssituation finns en skillnad mellan hur män och kvinnor framställer sig avseende kompetens och värme. En internetbaserad enkätstudie genomfördes med 299 deltagare. Den sökta tjänstens kvalifikationsgrad och en tänkt konkurrents kön varierades i en mellan-individdesign. Data analyserades med en femvägs mixad ANOVA. Resultaten visar att en individ som vill framstå som kompetent drar ner sin förmedlade värme. Denna så kallade kompensationseffekt framträder extra tydligt när självpresentationen sker med könstypiska karaktärsdrag. Kvinnor vill, sammantaget och som grupp, framställa sig mer positivt än män. Inga andra skillnader i självpresentation identifierades baserat på deltagarens eller konkurrentens kön. Vidare undersöktes om en tänkt konkurrents kön påverkar värderingar hos den sökande. Lägre sexism rapporterades av män som föreställde sig en kvinnlig jämfört med en manlig konkurrent.

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  • 105514. Wigh, Bengt
    Animal husbandry in the Viking Age town of Birka and its hinterland: excavations in the black earth 1990-952001Doctoral thesis, monograph (Other academic)
    Abstract [en]

    The Birka Excavations 1990-95 provided a unique opportunity to excavate a Swedish Viking Age town stratigraphically, allowing the finds - including extensive and well-preserved faunal remains - to be dated accurately. This in turn has given the opportunity to study the nature and development of Viking Age animal husbandry in a new, closer perspective.

    The Birka bones form the most comprehensive osteological assemblage recovered from a Swedish Viking Age site to date. Their osteological analysis, together with the study of bones from other contemporary sites, has answered many questions that could previously not be resolved. Hitherto very little was known of animal husbandry, meat production, trade in animal-based foodstuffs and patterns of meat consumption in early medieval Sweden.

    Birka's life spanned at least 225 years (AD 750-975), during which time the town functioned as a highly important trading centre in which many merchants and craftsmen lived and worked. The excavations 1990-95 yielded 6 tonnes of bones, consisting mainly of food and butchery waste, from two of the town's tenement plots. The assemblage comprises primarily the bones of domesticates such as cattle, pig and sheep, together with a sizeable proportion of bird and fish bones; numerous bones from a variety of wild species are also included. A 600kg sample of the mammal bones was selected and analysed using modern osteological techniques.

    Among its findings the analysis reveals a clear change in the pattern of meat consumption during the Viking Age in Birka and its hinterland. Sheep predominate amongst the bones of domesticates in the earliest town deposits. However, after the mid-9th century sheep numbers decline rapidly at the same time as cattle consumption increases. Pig numbers remain roughly constant throughout the stratigraphic sequence. Studies of contemporary assemblages in Central Sweden have revealed a similar sequence of events.

    Age and sex assessments of the bones of domesticates have provided important evidence for interpreting animal husbandry in Birka and its surrounding area. A synthesis of the cattle data suggests an emphasis on dairying in the town's hinterland. Viking Age sheep husbandry, on the other hand, appears not to have been specialized; various products were obtained throughout the course of an animal's life: first wool and milk, and finally meat. Surplus cattle and sheep were sold to Birka and slaughtered there. Many of the pigs slaughtered in Birka were most likely reared in the town.

    The importance of fur trading and pelt processing for Birka is evident from the substantial numbers of bones from a variety of fur-bearing animals yielded by the excavations. The majority of these bones derive from the paws, which were left attached to the pelt until final processing and tanning in the town, at which point they were detached and discarded amongst the urban refuse. The commonest fur-bearing animals were the fox, squirrel and marten. Fur trading and pelt processing appear to have been important to Birka from the town's earliest beginnings until its final abandonment. 

  • 105515.
    Wigren, Anders
    Stockholm University, Faculty of Social Sciences, Department of Human Geography.
    Från fyrk till urna: om rösträtt, valdeltagande och politisk rekrytering i småländska byar 1875-19461988Doctoral thesis, monograph (Other academic)
  • 105516.
    Wigren, Hanna
    Stockholm University, Faculty of Law, Department of Law.
    Ekonomiska, sociala och kulturella rättigheter i Sverige: effekten av ESK-konventionens tilläggsprotokoll2013Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
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  • 105517.
    Wigren, Madeleine
    Stockholm University, Faculty of Humanities, Department of Media Studies.
    Ebola i media: En kombinerad kvantitativ innehållsanalys och framinganalys av rapporteringen av Ebola i ett nationellt och ett globalt nyhetsprogram2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I uppsatsen undersöks två Tv-program, en global och en nationell, för att ta reda på om ett globalt nyhetsprogram anses vara mest lämpad att bedriva global journalistik. Utifrån Simon Cottle är Ebola en relevant global kris att använda i undersökningen för att jämföra programmen. En teoretisk grund har lagts med tre teorier, global journalistik, framing, nyhetsvärdering följt av tidigare forskning kring hotbilder, global krisrapportering och av svininfluensan. Undersökningen utförs med hjälp av två metoder, kvantitativ innehållsanalys och framinganalys och jämför tv-programmen Al Jazeera English och SVT Rapport under månaden oktober 2014. Undersökningen utförs på 62 nyhetssändningar varav en kvantitativ innehållsanalys utförs på alla sändningar och en framinganalys sker på 4 utvalda inslag från de 62 sändningarna. Uppsatsen svarar på frågorna: 1) Vad innehåller inslagen och vem kommer till tals? 2) Vilka likheter och skillnader kan urskiljas? 3) Hur använder Rapport och Al Jazeera English Framing i dess nyhetsinslag om Ebola? 4) Hur fungerar P. Berglez teori om global journalistik på uppsatsens material jämfört med hans eget material? Resultatet visar att global journalistik kan vara lämpligt för både nationella och globala program och att ingen av dem är mer lämpade, däremot har de olika förutsättningar för att bedriva global journalistik. 

  • 105518.
    Wigren, Malin
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Psychology.
    Östlund, Anna
    Stockholm University, Faculty of Social Sciences, Department of Psychology.
    Psykologiska konsekvenser hos kvinnor som genomgått en Gastric bypass-operation2010Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Enligt WHO är övervikt en global epidemi. Gastric bypass-operationer för viktminskning blir vanligare. Syftet med studien var att undersöka psykologiska aspekter och konsekvenser av att genomgå en Gastric bypass-operation. Åtta intervjuer utfördes och analyserades med Grundad teori. Sex kategorier utformades: negativt bemötande/positivt bemötande, jag/andra, dumping som vän/dumping som fiende, att tillhöra massan/att stå ut från massan, eget ansvar/andras ansvar och bevarad självbild/förändrad självbild. Kärnkategorin kognitiv dissonans sågs genomgående i alla kategorier. Den kognitiva dissonansen reduceras genom att en eller båda kognitionerna ändras så att de bättre stämmer överens eller genom att överbryggande kognitioner läggs till. Studiens kärnkategori, kognitiv dissonans, leder till tanken att för att operationen skall vara framgångsrik långsiktigt bör den opererade: 1) se sig som ansvarig för viktnedgången, 2) se sig som en smal/normalviktig individ och 3) tro att den är värd framgång.

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  • 105519.
    Wigren, Sonja
    Stockholm University, Faculty of Humanities.
    Sörmländsk bronsåldersbygd: en studie av tidiga centrumbildningar daterade med termoluminescens1987Doctoral thesis, monograph (Other academic)
  • 105520.
    Wigzell, Andreas Olof
    et al.
    Stockholm University, Faculty of Social Sciences, School of Business.
    Hallum, Erik
    Stockholm University, Faculty of Social Sciences, School of Business.
    The interaction between multinational enterprises and developing host countries: A minor field study of investment entries in Jamaica2002Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    For multinational enterprises (MNEs) to stay competitive today they have to be progressive and develop their businesses. A way to do this is entering a new market through an investment entry mode, which is through a wholly own subsidiaries or joint ventures. Those kinds of establishment will indeed be influenced in many ways by the host countries, which also in many ways are affected by such establishments as well. This is especially true for developing countries and therefore we chose to conduct a minor field study in one such country, Jamaica. From this we created the following research question:

  • 105521.
    Wihlborg, Cecilia
    Stockholm University, Faculty of Humanities, Department of Media Studies.
    Vägen till en lyckad kampanj utan starka ekonomiska muskler: En rekommendation för kampanjarbete2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Sammanfattning

    Författare: Cecilia Wihlborg

    Titel: Vägen till en lyckad kampanj utan starka ekonomiska muskler – En rekommendation för kampanjarbete

    Kandidatuppsats: M Kand, 15 hp

    Handledare: Sven Ross

    Period: Vårterminen 2013

    Problem/Bakgrund: Denna uppsats skrivs på uppdrag av bransch- och arbetsgivarorganisationen Glasbranschföreningen (GBF). Organisationen upplever ett behov av strategi, tips och råd för hur de ska arbeta med kampanjer framöver. Frågetecknen rör vilka kommunikationskanaler man ska använda och hur de ska användas, samt hur man överlag ska lägga upp en kampanjstrategi. I och med GBF:s begränsade resurser i form av ekonomi och personal, fokuserar denna uppsats på kampanjarbete ur ett resurseffektivt perspektiv.

    Syfte: Att undersöka hur tre organisationer arbetat med respektive kampanj för att belysa frågan om hur man åstadkommer maximalt genomslag när man som organisation har begränsade resurser. Detta ska sedan utmynna i en rekommendation till GBF och deras framtida arbete med kampanjer.

    Kortfattad beskrivning av uppsatsens utgångpunkter och undersökningens upplägg: Jag har genomfört kvalitativa intervjuer med tre organisationer om en kampanj från respektive organisation. Undersökta kampanjer är Kriminellas Revansch I Samhällets (KRIS) kampanj ”Statligt knark är också knark”, IOGT-NTO:s kampanj ”Vit Jul” och VISITA:s kampanj ”Sänk restaurangmomsen”. Intervjufrågorna är baserade på uppsatsens fyra frågeställningar: Hur har organisationerna arbetat med kampanjstrategier? Vilka kanaler har organisationerna arbetat med och på vilket sätt? Hur beskriver organisationerna resultatet av respektive kampanj? Samt vilka slutsatser kan dras av de analyserade kampanjerna gällande vad som är rekommendabelt att göra vid kampanjarbete för GBF i framtiden?

    Slutsatser/Resultat: Utifrån uppsatsens analys där jag kopplar teorier om kampanjer och marknadsföring med empirin från genomförda intervjuer skapar jag en rekommendation till framtida kampanjarbete för GBF. I rekommendationen förordar jag dem bland annat att vid kampanjarbete utse en kampanjansvarig och sätta upp tydliga och specifika mål för kampanjen. Jag rekommenderar dem att hitta expertisen inom organisationen och engagera anställda och sina medlemmar i kampanjen. Att använda många kanaler och vara aktiv på sociala medier är att föredra, men det är av vikt att ha en strategi och krisplan för kampanjarbetet.

    Nyckelord: Kampanj, guerillamarknadsföring, word of mouth, low cost campaign, sociala medier, Glasbranschföreningen

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    Vägen till en lyckad kampanj utan starka ekonomiska muskler
  • 105522.
    Wihlstrand, Richard
    Stockholm University, Faculty of Social Sciences, Department of Social Work.
    Hatbrott & nationalism i Sverige, finns det ett samband?2010Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    AbstractMedia presents hate crimes and nationalism as phenomenon that has increased both internationally and nationally in recent years. Further media largely pair these phenomenon together. The groups mostly exposed to hate and nationalism are people of different ethnic origin and LGBTQ (lesbian, gay, bi, trans and queer) people. In Sweden's general election in 2010 a RHP-party, Sweden Democrats, made it in to Parliament. The purpose of this study was to examine how hate crimes and nationalism, in the form of the Sweden Democrats, has increased in Sweden and if there was any link between them. By mapping the proportion of reported hate crimes and the proportion of eligible voters who voted for the Sweden Democrats in Sweden between 1997 and 2009 the study's main aim was to investigate whether there was any link between the proportion of reported hate crimes and the proportion of voters for Sweden Democrats in Sweden. The results question whether an actual increase of hate crime occurred due to methodological changes in the Swedish Security Service, the Swedish National Council for Crime Prevention and the police. Also the dark figure is large regarding this crime. Sweden Democrats has had strong success in recent years, but whether this is a sign of increased nationalism can’t be impugned. 1998 and 1999 revealed a relationship between hate crime complaints and voting on the Sweden Democrats, but after 1999 the relationship is weak.

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  • 105523. Wiholm, Clairy
    et al.
    Lowden, Arne
    Stockholm University, Faculty of Social Sciences, Stress Research Institute.
    Kuster, Niels
    Hillert, Lena
    Arnetz, Bengt B
    Akerstedt, Torbjörn
    Stockholm University, Faculty of Social Sciences, Stress Research Institute.
    Moffat, Scott D
    Mobile phone exposure and spatial memory.2009In: Bioelectromagnetics, ISSN 1521-186X, Vol. 30, no 1, p. 59-65Article in journal (Refereed)
    Abstract [en]

    Radiofrequency (RF) emission during mobile phone use has been suggested to impair cognitive functions, that is, working memory. This study investigated the effects of a 2 1/2 h RF exposure (884 MHz) on spatial memory and learning, using a double-blind repeated measures design. The exposure was designed to mimic that experienced during a real-life mobile phone conversation. The design maximized the exposure to the left hemisphere. The average exposure was peak spatial specific absorption rate (psSAR10g) of 1.4 W/kg. The primary outcome measure was a "virtual" spatial navigation task modeled after the commonly used and validated Morris Water Maze. The distance traveled on each trial and the amount of improvement across trials (i.e., learning) were used as dependent variables. The participants were daily mobile phone users, with and without symptoms attributed to regular mobile phone use. Results revealed a main effect of RF exposure and a significant RF exposure by group effect on distance traveled during the trials. The symptomatic group improved their performance during RF exposure while there was no such effect in the non-symptomatic group. Until this new finding is further investigated, we can only speculate about the cause.

  • 105524. Wiig, Øystein
    et al.
    Henrichsen, Poul
    Sjøvold, Torstein
    Stockholm University, Faculty of Humanities, Osteology Unit.
    Born, Erik W.
    Laidre, Kristin L.
    Dietz, Rune
    Sonne, Christian
    Aars, Jon
    Variation in non-metrical skull traits of polar bears (Ursus maritimus) and relationships across East Greenland and adjacent subpopulations (1830-2013)2019In: Polar Biology, ISSN 0722-4060, E-ISSN 1432-2056, Vol. 42, no 3, p. 461-474Article in journal (Refereed)
    Abstract [en]

    Knowledge of subpopulation identity including substructure is a prerequisite for sound management of polar bears (Ursus maritimus). It is not known whether the present catch of polar bears in the East Greenland subpopulation (EG) is sustainable. We used the Mean Measure of Divergence (MMD) to examine geographical variation in non-metrical traits from 1414 polar bear (Ursus maritimus) skulls collected in East Greenland (EG), Svalbard (SVA), Franz Josef Land (FJL), Davis Strait (DS), Baffin Bay (BB), and Kane Basin (KB), between 1830 and 2013. We focused on East Greenland with the goal of examining substructuring in the subpopulation. We did not find significant differences among samples across four areas of the EG subpopulation (i.e., offshore Fram Strait, NE, SE, and SW Greenland) using data from 1830 to 1983. Our analyses did not lend support to substructuring. However, we draw our conclusions with caution because skulls were sampled over a long time period and had low power due to small sample sizes. Also, comparisons were limited to pre-1980s skulls. The decrease in sea ice in EG since the 1990s due to climate change may have led to substructuring not detected with MMD. This study contributes to the current efforts by Greenland authorities to quantify connectivity of polar bears between southeast and northeast Greenland which is important information for the evaluation of the sustainability of the catch of bears from the EG subpopulation.

  • 105525.
    Wiik, Fanny
    Stockholm University, Faculty of Humanities, Department of Language Education.
    Matematik på ett nytt språk: En studie kring matematikundervisning för nyanlända elever2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Resultaten från de nationella proven i matematik från vårterminen 2012 visar att elever som har ett annat språk än svenska som modersmål har svårare att nå de krav som ställs för att eleverna ska uppnå betyget godkänt i matematik än de elever som har svenska som modersmål. Bland elever med utländsk bakgrund finns en högre procentuell andel – oavsett kön – som inte uppnått kraven. Det gäller alla fyra delproven i matematik (Skolverket, 2012b).

    Studiens övergripande syfte är att se om och hur matematiklärare anpassar sin undervisning med fokus på nyanlända elever. Undersökningen ser även till vilka metoder matematikläraren använder i sin undervisning för att förstärka förståelsen i ämnet, och hur lärarna planerar sin undervisning med fokus på nyanlända elever. Även undervisningsmaterialet i form av att en lärobok analyseras.

    I undersökningen används både kvantitativa och kvalitativa metoder. En kvantitativ metod används genom att två utvalda lärare har observerats vid två tillfällen var. Efter observationstillfällena har lärarna intervjuats, vilket är en kvalitativ metod.

    En utgångspunkt i diskussionen har varit Malmers (2002) sex inlärningsnivåer inom matematik. "Samtliga bör beaktas och bli föremål för undervisningen om en effektiv inlärning och förståelse ska kunna ske för alla elever" (Malmer, 2002: 30).

    Resultatet av studien visar att de två matematiklärare som har observerats och intervjuats inte direkt planerar sin matematikundervisning med de nyanlända eleverna i fokus, men de har ändå de nyanlända eleverna i åtanke på lektionerna. Lärarna anger att de arbetar mycket med att tala matematik och arbeta med begreppen. Det material som genomsyrar undervisningen är traditionellt, en lärobok i matematik och en whiteboardtavla.

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    Matematik på ett nytt språk
  • 105526.
    Wiik, Jennie
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Special Education.
    Hynning, Anna
    Stockholm University, Faculty of Social Sciences, Department of Special Education.
    Lässvårigheter och Response to intervention (RTI): En systematisk litteraturstudie2019Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
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    fulltext
  • 105527. Wiik, K.
    et al.
    Zackrisson, E.
    Stockholm University, Faculty of Science, Department of Astronomy.
    Riehm, T.
    Stockholm University, Faculty of Science, Department of Astronomy.
    Dark Matter Millilensing and VSOP-22009In: Approaching Micro-Arcsecond Resolution with VSOP-2 / [ed] Yoshiaki Hagiwara, Ed Fomalont, Masato Tsuboi, and Yasuhiro Murata, 2009, Vol. 402, p. 326-Conference paper (Other academic)
    Abstract [en]

    According to the cold dark matter scenario, a large number of dark subhalos should be located within the halo of each Milky-way sized galaxy. One promising possibility for detecting such subhalos is to try to observe their gravitational lensing effects on background sources. Dark matter subhalos in the 10^6 -- 1010 Mȯ mass range should cause strong gravitational lensing on the (sub)milliarcsecond scales, which can be observed only using space VLBI. We study the feasibility of a strong-lensing detection of dark subhalos by deriving the image separations expected for density profiles favoured by current simulations and comparing it to the angular resolution of both existing and upcoming observational facilities. We show that the detection of subhalos is likely much more difficult than suggested in previous studies, due to the smaller image separations predicted for subhalo density profiles that are more realistic than the singular isothermal sphere models often adopted.

  • 105528. Wiik, Kenneth Aarskaug
    et al.
    Bernhardt, Eva
    Stockholm University, Faculty of Social Sciences, Department of Sociology. Demografiska avdelningen.
    Noack, Turid
    Love or money?: Marriage intentions amon young cohabitors in Norway and Sweden2008Report (Other academic)
  • 105529. Wiik, Kenneth Aarskaug
    et al.
    Bernhardt, Eva
    Stockholm University, Faculty of Social Sciences, Department of Sociology.
    Noack, Turid
    Love or Money?: Marriage Intentions among Young Cohabitors in Norway and Sweden2010In: Acta Sociologica, ISSN 0001-6993, E-ISSN 1502-3869, Vol. 53, no 3, p. 269-287Article in journal (Refereed)
    Abstract [en]

    Using data from Sweden and Norway on cohabitors aged 25 to 35, we examine the association between socio-economic resources, relationship quality and commitment and cohabitors' marriage intentions. The individualization process, i.e. the arguably growing importance of individual choice, leads us to assume that relationship assessments are more important predictors of marriage intentions than socio-economic variables. Nonetheless, multivariate results show that university education and having a partner whose education is higher than one's own increase the likelihood that cohabitors intend to marry. Likewise, being satisfied with and committed to the union is positively related to having marriage plans. Separate analyses for men and women reveal that whereas commitment is positively related to women's marriage intentions, men's marriage intentions are significantly more influenced by their own education, income, as well as the income of their partners. In this sense, one conclusion to be drawn is that both love and money are associated with cohabitors' intention to marry.

  • 105530.
    Wiik, Kenneth
    et al.
    Statistisk sentralbyrå, Oslo.
    Noack, Turid
    Statistisk sentralbyrå, Oslo.
    Bernhardt, Eva
    Stockholm University, Faculty of Social Sciences, Department of Sociology.
    A Study of Commitment and Relationship Quality in Sweden and Norway2009In: Journal of Marriage and Family, ISSN 0022-2445, E-ISSN 1741-3737, Vol. 71, no 3, p. 465-477Article in journal (Refereed)
    Abstract [en]

    The Scandinavian countries are often cited as examples of countries where cohabitation is largely indistinguishable from marriage. Using survey data from Norway and Sweden (N=2,923) we analyzed differences between cohabitors and married individuals in relationship seriousness, relationship satisfaction and dissolution plans. Our analyses reveal that cohabitors overall are less serious and less satisfied with their relationships and are more likely to consider ending their current relationship than are married respondents. The views of cohabitors who report that they intend to marry their current partner within 2 years, however, differ much less from those of married respondents than cohabitors with no marriage plans. This finding suggests that even in Scandinavia cohabitors are a heterogeneous group.

  • 105531. Wiinikka, Henrik
    et al.
    Toth, Pal
    Jansson, Kjell
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Molinder, Roger
    Broström, Markus
    Sandström, Linda
    Lighty, JoAnn S.
    Weiland, Fredrik
    Particle formation during pressurized entrained flow gasification of wood powder: Effects of process conditions on chemical composition, nanostructure, and reactivity2018In: Combustion and Flame, ISSN 0010-2180, E-ISSN 1556-2921, Vol. 189, p. 240-256Article in journal (Refereed)
    Abstract [en]

    The influence of operating condition on particle formation during pressurized, oxygen blown gasification of wood powder with an ash content of 0.4 wt% was investigated. The investigation was performed with a pilot scale gasifier operated at 7 bar(a). Two loads, 400 and 600 kW were tested, with the oxygen equivalence ratio (A) varied between 0.25 and 0.50. Particle concentration and mass size distribution was analyzed with a low pressure cascade impactor and the collected particles were characterized for morphology, elemental composition, nanostructure, and reactivity using scanning electron microscopy/high resolution transmission electron microscopy energy dispersive spectroscopy, and thermogravimetric analysis. In order to quantify the nanostructure of the particles and identify prevalent sub-structures, a novel image analysis framework was used. It was found that the process temperature, affected both by A and the load of the gasifier, had a significant influence on the particle formation processes. At low temperature (1060 degrees C), the formed soot particles seemed to be resistant to the oxidation process; however, when the oxidation process started at 1119 degrees C, the internal burning of the more reactive particle core began. A further increase in temperature ( > 1313 degrees C) lead to the oxidation of the less reactive particle shell. When the shell finally collapsed due to severe oxidation, the original soot particle shape and nanostructure also disappeared and the resulting particle could not be considered as a soot anymore. Instead, the particle shape and nanostructure at the highest temperatures ( > 1430 degrees C) were a function of the inorganic content and of the inorganic elements the individual particle consisted of. All of these effects together lead to the soot particles in the real gasifier environment having less and less ordered nanostructure and higher and higher reactivity as the temperature increased; i.e., they followed the opposite trend of what is observed during laboratory-scale studies with fuels not containing any ash-forming elements and where the temperature was not controlled by A.

  • 105532.
    Wiin-Nielsen, Aksel
    Stockholm University.
    On atmospheric flow of planetary scale in some simple short-range prediction models.1960Doctoral thesis, comprehensive summary (Other academic)
  • 105533. Wiium, Nora
    et al.
    Dimitrova, Radosveta
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Personality, Social and Developmental Psychology. University of Bergen, Norway.
    Positive Youth Development Across Cultures: Introduction to the Special Issue2019In: Child and Youth Care Forum, ISSN 1053-1890, E-ISSN 1573-3319, Vol. 48, no 2, p. 147-153Article in journal (Other academic)
    Abstract [en]

    Background Promoting well-being of young people within the positive youth development (PYD) framework has been found to be promising. The basic models of PYD—the 5C’s (competence, confidence, character, connection, and caring) and developmental assets (significant relationships, skills, opportunities and values that promote thriving exemplified by external assets or environmental resources and internal assets or interpersonal strengths), have been largely shown to promote positive aspects of development among diverse samples of young people. However, PYD research has mainly been conducted within the US context.

    Objectives Explore the generalizability of the PYD framework to understand and promote positive aspects of development in young people beyond the US context.

    Method Six papers using cross-sectional methods reported data on adolescents and/or emerging adults (N = 6820) with diverse cultural backgrounds from ten countries (Brazil, China, El Salvador, Ghana, Italy, Kenya, Norway, Slovenia, South-Africa, Turkey) in four continents (Africa, Asia, Europe and Latin America). Widely applied PYD scales developed within the US and adequately adapted in each cultural context were used for data collection.

    Results The generalizability of the PYD framework (the presence and positive relations between the 5Cs and developmental assets in promoting optimal development) was largely confirmed among culturally diverse samples of young people investigated in the papers.

    Conclusion While the findings of the current special issue extend the generalizability of the PYD framework beyond the US context, more research is needed to ascertain appropriate developmental assets to facilitate PYD, as defined by the specific context where young people are embedded.

  • 105534. Wiium, Nora
    et al.
    Ferrer-Wreder, Laura
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Personality, Social and Developmental Psychology.
    Chen, Bin-Bin
    Dimitrova, Radosveta
    Stockholm University, Faculty of Social Sciences, Department of Psychology, Personality, Social and Developmental Psychology. University of Bergen, Norway.
    Gender and Positive Youth Development Advancing Sustainable Development Goals in Ghana2019In: Zeitschrift fur Psychologie mit Zeitschrift fur angewandte Psychologie, ISSN 2190-8370, E-ISSN 2151-2604, Vol. 227, no 2, p. 134-138Article in journal (Refereed)
    Abstract [en]

    The positive youth development (PYD) perspective suggests that thriving leads to participation and contribution. All nations working to achieve the United Nations' Sustainable Development Goals (SDGs), including Ghana, face challenges in their efforts to ensure that all youth have equal opportunities to thrive. The study design was cross-sectional and participants were 858 Ghanaian adolescents attending senior high school (44% girls). We explored thriving indicators as reflected by the 5Cs of PYD (i.e., confidence, competence, connection, character, and caring) in light of the adolescents' gender and socio-economic background. Results indicated that boys scored higher on competence relative to girls and that girls scored higher on caring relative to boys. No significant differences were found for socio-economic background. Cultural norms and socialization processes that perpetuate gender inequality may be important to understanding the observed gender differences. Implications of these results are considered in light of efforts to achieve SDGs in Ghana.

  • 105535.
    Wijekoon, Assajie
    Stockholm University, Faculty of Law, Department of Law.
    Är reglerna i aktiebolagslagen om bestämmande av lösenbeloppets storlek vid en tvångsinlösen i ett aktiebolag tillräckliga, eller kan de ändras på ett sätt som ytterligare stävjar eventuellt majoritets- och/eller minoritetsmissbruk?2016Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
  • 105536.
    Wijermans, Nanda
    et al.
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Conrado, Claudine
    van Steen, Maarten
    Martella, Claudio
    Li, Jie
    A landscape of crowd-management support: An integrative approach2016In: Safety Science, ISSN 0925-7535, E-ISSN 1879-1042, Vol. 86, p. 142-164Article, review/survey (Refereed)
    Abstract [en]

    Of the many crowd behavior models, very few have been used in assisting crowd management practice. This lack of usage is partly due to crowd management involving a diversity of situations that require competencies in observing, sense-making, anticipating and acting. Crowd research is similarly scattered across disciplines and needs integration to advance the field towards supporting practice. To address these needs, we present INCROWD, an integrated framework detailing a high-level architecture of a decision-support system for crowd management and model development. It also offers a lens for categorizing crowd literature, allowing us to present a structured literature review.

  • 105537.
    Wijermans, Nanda
    et al.
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Jorna, René
    Jager, Wander
    van Vliet, Tony
    Adang, Otto
    CROSS: Modelling Crowd Behaviour with Social-Cognitive Agents2013In: JASSS: Journal of Artificial Societies and Social Simulation, ISSN 1460-7425, E-ISSN 1460-7425, Vol. 16, no 4, article id 1Article in journal (Refereed)
    Abstract [en]

    The use of computer simulations in crowd research is a powerful tool to describe and analyse complex social systems. This paper presents CROSS, a generic framework to model crowd simulations as a social scientific tool for understanding crowd behaviour. In CROSS, individuals are represented by social-cognitive agents that are affected by their social and physical surroundings and produce cognition-based behaviour and behaviour patterns. Understanding is sought by relating intra- and inter-individual levels of behaviour generation with behaviour pattern emergence at group level. By specifying the CROSS framework for a festival context we demonstrate how CROSS meets the need for a theory that reflects the dynamic interplay between individuals and their environment as well as the need for a method that allows for testing.

  • 105538.
    Wijesinghe, Chaminda
    et al.
    National School of Business Management, Sri Lanka .
    Hansson, Henrik
    Stockholm University, Faculty of Social Sciences, Department of Computer and Systems Sciences.
    Colombage, Ranil Peiris
    Stockholm University, Faculty of Social Sciences, Department of Computer and Systems Sciences.
    University-Industry Collaboration for ICT Innovation in Sri Lanka2018In: E-Learn 2018: World Conference on E-Learning / [ed] Saul Carliner, Association for the Advancement of Computing in Education, 2018, p. 553-558Conference paper (Refereed)
    Abstract [en]

    University-Industry Collaboration (UIC) has become a vital component in emerging economies. As universities gradually become the center of society's knowledge production system, their role in innovation becomes more diverse. Education systems and industries are significantly different between developed countries and developing countries. This implies that the research should be conducted to identify the local UIC and innovation ecosystem in order to address the real problem domain. The aim of this study is to investigate which factors will affect UIC to work as a source of ICT Innovation in Sri Lanka. An explorative case study method was used. Interviews were conducted with key informants at major ICT businesses and Universities in Sri Lanka. Results suggest that many of the collaborations are formed on the basis of personal relationships, and there is no IT-based support system for systematic collaboration. Increased collaboration might help Universities to produce Innovative highly employable graduates.

  • 105539.
    Wijk, Axel
    Stockholm University, Faculty of Humanities.
    Regularized English: an investigation into the English spelling reform problem with a new, detailed plan for a possible solution1959Book (Other academic)
  • 105540.
    Wijk, Axel
    Stockholm College.
    The orthography and pronunciation of Henry Machyn, the London diarist: a study of the South-East Yorkshire dialect in the early 16th century1937Doctoral thesis, monograph (Other academic)
  • 105541.
    Wijk, Daniel
    Stockholm University, Faculty of Law, Department of Law.
    Skattskyldighet till kupongskatt: tolkning av termen utdelningsberättigad2013Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
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    Daniel_Wijk
  • 105542.
    Wijk, Hillevi
    Stockholm University, Faculty of Law, Department of Law.
    Automatiska förlängningsvillkor i konsumentavtal2017Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
  • 105543.
    Wijk, Johnny
    Stockholm University, Faculty of Humanities, Department of History.
    ”Andra världskrigets vardag med ransoneringar, tysktåg och kaffesurrogat” – Recension av Birgitta Skarin Frykman, Annika Nordström och Ninna Trossholmen (red.), Västsvenskt vardagsliv under andra världskriget2015In: Militärhistorisk Tidskrift, ISSN 0283-8400, no 1, p. 154-159Article, book review (Other academic)
  • 105544.
    Wijk, Johnny
    Stockholm University, Faculty of Humanities, Department of History.
    De "glömda" mästerskapen i Oslo 1946 - om tävlingarna där Europas idrottare åter kunde mötas efter krigets slut och om medaljerna som Arne Andersson aldrig fick ta.2009In: Idrottsforum.org, no 20 majArticle in journal (Other academic)
  • 105545.
    Wijk, Johnny
    Stockholm University, Faculty of Humanities, Department of History.
    Den idrottshistoriska scenen - utveckling och minnen2013In: Årsbok för Riksarkivet och landsarkiven, ISSN 1103-8233Article, book review (Other academic)
  • 105546.
    Wijk, Johnny
    Stockholm University, Faculty of Humanities, Department of History.
    Det folkliga genombrottet för tennis i TV-sofforna - om Janne Lundqvist, Uffe Schmidt och de första TV-sända Davis Cup-matcherna från Båstad i början av 1960-talet.2009In: Idrott, historia & samhälle. Svenska idrottshistoriska föreningens årsskrift., ISSN 0280-2775Article in journal (Other academic)
  • 105547.
    Wijk, Johnny
    Stockholm University, Faculty of Humanities, Department of History.
    Det "idrottstokiga" Australien och dess sportidentitet - recension av Sport in Australian National Identity: Kicking Goals2011In: idrottsforum.org, ISSN 1652-7224, no 9 marsArticle, book review (Other academic)
  • 105548.
    Wijk, Johnny
    Stockholm University, Faculty of Humanities, Department of History.
    Folkhemmet på is: ishockey, modernisering och nationell identitet i Sverige 1920-19722010In: Idrott, historia och samhälle : Svenska idrottshistoriska föreningens årsskrift. 2010, ISSN 0280-2775, p. 129-137Article, book review (Other academic)
  • 105549.
    Wijk, Johnny
    Stockholm University, Faculty of Humanities, Department of History.
    Friidrott och fred: om EM i Oslo 1946 och den svenska friidrottens guldålder.2009In: Den cyklande humanisten: historiker, arkivman, stockholmare: en vänbok till Ulf Söderberg. / [ed] Bo Lundström & Maria Gussarsson Wijk, Stockholm: Krigsarkivet , 2009, 1, p. 187-212Chapter in book (Other academic)
  • 105550.
    Wijk, Johnny
    Stockholm University, Faculty of Humanities, Department of History.
    Idrott, krig och nationell gemenskap: om riksmarscher, fältsport och Gunder Hägg-feber2005Book (Refereed)
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