Search results for "370"
showing 10 items of 114 documents
4D texture of circular dichroism in soft-x-ray photoemission from tungsten
2019
Brief treatment and crisis intervention 21(1), 013017 (2019). doi:10.1088/1367-2630/aaf4cd
Suppression of sideband frequency shifts in the modulational instability spectra of wave propagation in optical fiber systems
2007
International audience; In standard optical fibers with constant chromatic dispersion, modulational instability (MI) sidebands execute undesirable frequency shifts due to fiber losses. By means of a technique based on average-dispersion decreasing dispersion-managed fibers, we achieve both complete suppression of the sideband frequency shifts and fine control of the MI frequencies, without any compromise in the MI power gain.
Influence of Content Knowledge on Pedagogical Content Knowledge: The case of teaching photosynthesis and plant growth
2009
International audience; Abstract The aim of the research was to investigate the effect of the amount and quality of content knowledge on pedagogical content knowledge (PCK). The biological content photosynthesis and plant growth was used as an example. The research sample consisted of 10 primary and 10 secondary (biology) teacher students. Questionnaires, lesson preparation task and an interview were used to collect data. Primary student teachers' were not aware of students' conceptual difficulties and had problems in choosing the most important content. Neither of the groups had knowledge on suitable experiments and demonstrations, which indicates that PCK should be explicitly taught. The …
Professionalisation and quality management: struggles, boundaries and bridges between two approaches
2011
European journal for Research on the Education and Learning of Adults 2 (2011) 1, S. 21-35
Instruction-based clinical eye-tracking study on the visual interpretation of divergence : how do students look at vector field plots?
2018
Relating mathematical concepts to graphical representations is a challenging task for students. In this paper, we introduce two visual strategies to qualitatively interpret the divergence of graphical vector field representations. One strategy is based on the graphical interpretation of partial derivatives, while the other is based on the flux concept. We test the effectiveness of both strategies in an instruction-based eye-tracking study with N = 41 physics majors. We found that students’ performance improved when both strategies were introduced (74% correct) instead of only one strategy (64% correct), and students performed best when they were free to choose between the two strategies (88…
Rapid shifting of a deep magmatic source at Fagradalsfjall volcano, Iceland
2022
AbstractRecent Icelandic rifting events have illuminated the roles of centralized crustal magma reservoirs and lateral magma transport1–4, important characteristics of mid-ocean ridge magmatism1,5. A consequence of such shallow crustal processing of magmas4,5 is the overprinting of signatures that trace the origin, evolution and transport of melts in the uppermost mantle and lowermost crust6,7. Here we present unique insights into processes occurring in this zone from integrated petrologic and geochemical studies of the 2021 Fagradalsfjall eruption on the Reykjanes Peninsula in Iceland. Geochemical analyses of basalts erupted during the first 50 days of the eruption, combined with associate…
Annengjøring av homoseksualitet : en studie av seksualundervisning i norsk skole
2019
Masteroppgave samfunnskunnskap SV505 - Universitetet i Agder 2019 I denne oppgaven prøver jeg å besvare følgende problemstilling: Hvordan gjør lærere seksualundervisning? I hvilken grad er deres seksualundervisning med på å annengjøre homofili og hvordan kan homofili normaliseres? Min empiri har jeg tilegnet meg gjennom intervjuer med fire personer som tidligere har vært elever vedgrunnskole og videregående skolei Norge. Spørsmålene dreide seg i hovedsak om hvordan mine informanters lærere gjorde seksualundervisning, hvordan homofili eventuelt ble inkludert ellertvert omekskludert i undervisningen, og hva mine informanter mente kunne forbedre seksualundervisning og gjøre den mindre heterono…
Deltidsarbeidende menn på Sørlandet : en studie av mannlige deltidsarbeideres begrunnelser for, og opplevelser av, deltidsarbeid på Sørlandet
2019
Masteroppgave samfunnskunnskap SV505 - Universitetet i Agder 2019 Formålet med denne oppgaven er å få innsikt i mannlige deltidsarbeideresbegrunnelser for, og opplevelser av, deltidsarbeid på Sørlandet. Studien har etkvalitativ designog er basert på intervjuer med fem deltidsarbeidende menn.Hensikten med studien erå frembringe ny kunnskap om hvordan mennpå Sørlandet opplever å arbeide deltid i en landsdel som er sterkt preget av kvinner i deltidsstillinger,og som skårer lavt på mål omlikestilling. Jeg har anvendtkjønnsteoretiske perspektiver i analysen avmaterialet og diskuterer funnene opp mot teorier om kjønn som gjøren og forhandling. I tilleggdiskuteresfunnene opp mot individualiserings…
Kvinnenettverk i næringslivet: Business as usual? : En kvantitativ studie om kvinners erfaringer med nettverket «Women in Business» i Kristiansand
2020
Master's thesis in Social science (SV505) I denne studien er det undersøkt hvordan medlemmer av nettverket Women in Business opplever deltakelse i dette, samt hvordan de opplever likestillingssituasjonen på deres egne arbeidsplasser. Det er også spurt etter kvinnenes holdninger til likestilling generelt. Studien har fått tittelen «Kvinnenettverk i næringslivet: Business as usual?», som reflekterer temaets aktualitet og navnet på nettverket som undersøkes. Oppgavens problemstilling er todelt, og har spurt etter i) «Hvordan opplever kvinner som deltar i nettverket «Women in Business» likestillingssituasjonen på sine arbeidsplasser, og deltakelse i dette nettverket?», og ii) «Hvordan kan disse…
Students' Understanding of the Special Theory of Relativity and Design for a Guided Visit to a Science Museum
2009
International audience; This paper describes the design of teaching materials that are used as learning tools in school visits to a science museum. An exhibition on the A century of the Special Theory of Relativity, in the Kutxaespacio Science Museum, in San Sebastian (Spain), was used to design a visit for first year engineering students at the university and assess the learning which was achieved. The first part of the paper presents the teaching sequence which was designed to build a bridge between formal teaching and the exhibition visit. The second part analyses the potential of the exhibition and the aforementioned teaching sequence to influence the students' knowledge of three aspect…