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Sökning: WFRF:(Danielsson Kristina)

  • Resultat 1-10 av 291
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1.
  • Kjällander, Susanne, et al. (författare)
  • ”Förskolan behöver en digitaliserings­strategi”
  • 2023
  • Ingår i: Svenska Dagbladet. - 2001-3868. ; :2023-06-18
  • Tidskriftsartikel (populärvet., debatt m.m.)abstract
    • Vi förskole­forskare som särskilt fokuserar på digitalisering reagerar starkt på den bild av digitalisering i förskolan som dominerar i media. Det skriver flera debattörer.
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  • Pramling Samuelsson, Ingrid, et al. (författare)
  • 27 forskare i upprop mot skärmfri förskola
  • 2024
  • Ingår i: Förskolan. - Stockholm : Sveriges Lärare.
  • Tidskriftsartikel (populärvet., debatt m.m.)abstract
    • VI LÄRARE DEBATT: Regeringens uppdrag till Skolverket – att göra utbildningen i förskolan skärmfri – riskerar att ge negativa och allvarliga konsekvenser, särskilt för barn som är i störst behov av att möta en digitaliserad värld med stöd av utbildade förskollärare och barnskötare. Det skriver 27 barn- och förskoleforskare i ett gemensamt upprop.
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  • Inzunza, Jose, et al. (författare)
  • Selective insulin-like growth factor-I antagonist inhibits mouse embryo development in a dose-dependent manner
  • 2010
  • Ingår i: Fertility and Sterility. - : Elsevier BV. - 0015-0282 .- 1556-5653. ; 93:8, s. 2621-2626
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To study the role of a synthetic insulin-like growth factor-I receptor (IGF-IR) antagonist, picropodophyllin, for mouse preimplantation embryo development in vivo and in vitro. DESIGN: In vitro and in vivo study. SETTING: Hospital-based research unit. ANIMALS: FVB/N mice and mouse embryos. INTERVENTION(S): The effect of picropodophyllin in mouse embryo development in vivo and in vitro, immunohistochemistry, ELISA, polymerase chain reaction. MAIN OUTCOME MEASURE(S): Embryo development, presence of IGF-IR, messenger RNA expression, IGF-I synthesis. RESULT(S): The effect of picropodophyllin on embryo development in vitro and in vivo was not reversible. Mice treated with picropodophyllin 1 to 3 days after mating had a reduced number of blastocysts, 40.5% versus 78.8%, and a higher number of embryos with delayed development, 48.6% versus 11.5%. Insulin-like growth factor-IR protein is present in both phosphorylated and nonphosphorylated form at all stages of embryo development. The relative IGF-IR messenger RNA expression was highest in the oocyte and reduced during development to blastocyst stage. Insulin-like growth factor-I in culture media was reduced after picropodophyllin treatment. CONCLUSION(S): We conclude that IGF-I has an important role in normal mouse embryo development and that its receptor plays an essential role in the embryonic genome activation process.
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  • Andersson, Johanna K., et al. (författare)
  • Inter-Rater Agreement for Diagnosing Adenomyosis Using Magnetic Resonance Imaging and Transvaginal Ultrasonography
  • 2023
  • Ingår i: Diagnostics. - 2075-4418. ; 13:13
  • Tidskriftsartikel (refereegranskat)abstract
    • Our aim was to compare the inter-rater agreement about transvaginal ultrasonography (TVS) with magnetic resonance imaging (MRI) with regard to diagnosing adenomyosis and for assessing various predefined imaging features of adenomyosis, in the same set of women. The study cohort included 51 women, prospectively, consecutively recruited based on a clinical suspicion of adenomyosis. MRIs and TVS videoclips and 3D volumes were retrospectively assessed by four experienced radiologists and five experienced sonographers, respectively. Each rater subjectively evaluated the presence or absence of adenomyosis, as well as imaging features suggestive of adenomyosis. Fleiss kappa (κ) was used to reflect inter-rater agreement for categorical data, and the intraclass correlation coefficient (ICC) was used to reflect the reliability of quantitative data. Agreement between raters for diagnosing adenomyosis was higher for TVS than for MRI (κ = 0.42 vs. 0.28). MRI had a higher inter-rater agreement in assessing wall asymmetry, irregular junctional zone (JZ), and the presence of myometrial cysts, while TVU had a better agreement for assessing globular shape. MRI showed a moderate to good reliability for measuring the JZ (ICC = 0.57–0.82). For TVS, the JZ was unmeasurable in >50% of cases, and the remaining cases had low reliability (ICC = −0.31–0.08). We found that inter-rater agreement for diagnosing adenomyosis was higher for TVS than for MRI, despite the fact that MRI showed a higher inter-rater agreement in most specific features. Measurements of JZ in the coronal plane with 3D TVS were unreliable and thus unlikely to be useful for diagnosing adenomyosis.
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  • Andersson, Kristina, 1962-, et al. (författare)
  • Chafing borderlands: obstacles for science teaching and learning in preschool teacher education.
  • 2020
  • Ingår i: Cultural Studies of Science Education. - : Springer Nature. - 1871-1502 .- 1871-1510. ; 15:2, s. 433-452
  • Tidskriftsartikel (refereegranskat)abstract
    • This study examines preservice preschool teachers’ university science education experience.The empirical data are from a research and intervention project conducted on teacher education programs at two Swedish universities. We analyzed one of the assignments completed by 111 students within a science course as well as their conversations about the assignment at a number of seminars. We combined culture contrast and thematic analysis to examine the data. The results showed a tension between the preschool culture and the university science culture. We described this tension between the boundary lines of the two cultures as a chafing borderland. These cultures do not merge, and the defined boundaries cause chafing with each other. We discuss ways of diminishing this chafing of borderlands, potential border crossings such as caring and children as boundary objects and equalizing power imbalances.
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  • Resultat 1-10 av 291
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