Sökning: "Jonas Persson"

Visar resultat 21 - 25 av 34 avhandlingar innehållade orden Jonas Persson.

1. 21. Preschool staff’s working conditions and professional well-being in contexts with high proportions of early second language learners

   Författare :Johannes Finnman Grönaas; Lena Almqvist; Jonas Welander; Maja Söderbäck; Henrik Danielsson; Sven Persson; Mälardalens universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Working Life Studies; arbetslivsvetenskap;

   Sammanfattning : This thesis explored the working conditions and professional well-being of preschool staff in Sweden, particularly in settings with a high proportion of early second language learners (L2 learners). The thesis is timely and significant, considering the growing diversity in Swedish preschools and the increasing presence of L2 learners. LÄS MER

3. 22. Procedural and Declarative Memory in Children with Developmental Disorders of Language and Literacy

   Författare :Martina Hedenius; Margareta Jennische; Jonas Persson; Michael T Ullman; Elena Plante; Uppsala universitet; []
   Nyckelord :Specific Language Impairment; Developmental Dyslexia; Procedural memory; Declarative memory; Implicit sequence learning;

   Sammanfattning : The procedural deficit hypothesis (PDH) posits that a range of language, cognitive and motor impairments associated with specific language impairment (SLI) and developmental dyslexia (DD) may be explained by an underlying domain-general dysfunction of the procedural memory system. In contrast, declarative memory is hypothesized to remain intact and to play a compensatory role in the two disorders. LÄS MER

4. 23. Genes to remember : imaging genetics of hippocampus-based memory functions

   Författare :Karolina Kauppi; Lars Nyberg; Jonas Persson; Guillén Fernández; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Imaging genetics; fMRI; Episodic memory; SNP; KIBRA; BDNF; APOE; Hippocampus; Parahippocampus;

   Sammanfattning : In the field of imaging genetics, brain function and structure are used as intermediate phenotypes between genes and cognition/diseases to validate and extend findings from behavioral genetics. In this thesis, three of the strongest candidate genes for episodic memory, KIBRA, BDNF, and APOE, were examined in relation to memory performance and hippocampal/parahippocampal fMRI blood-oxygen level-dependent (BOLD) signal. LÄS MER

5. 24. Fearful attention : Investigating event-related potentials in spider phobia

   Författare :Joakim Norberg; Stefan Wiens; Jonas Persson; Harald Schupp; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; attention; phobia; event-related potential; Psychology; psykologi;

   Sammanfattning : Previous studies showed that emotional pictures capture attention. Further, this effect was decreased by manipulating spatial attention. In contrast, studies produced mixed findings for effects of perceptual load on attention to emotional pictures. Emotional pictures can be phobic or nonphobic. LÄS MER

7. 25. Coordinated Frequency Control Between Interconnected AC/DC Systems

   Författare :Danilo Obradovic; Mehrdad Ghandari; Robert Eriksson; Jonas Persson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power System Dynamics; Frequency Stability; Small Signal Stability; HVDC Supplementary Power Control; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : With ambitions of reducing the environmental pollution, power systems integrate larger shares of Renewable Energy Sources (RES) to phase out conventional thermal and nuclear generators. Since RES (such as wind and solar power) are connected to the grid through power electronics devices, they do not inherently contribute to system inertia. LÄS MER