Browsing by Subject "Retention"

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  • Lehtamo, Sanna; Juuti, Kalle; Inkinen, Janna; Lavonen, Jari (Springer International Publishing, 2018)
    Abstract Background There is a lack of students enrolling in upper secondary school physics courses. In addition, many students discontinue the physics track, causing a lack of applicants for university-level science, technology, engineering and mathematics (STEM) programmes. The aim of this research was to determine if it is possible to find a connection between academic emotions in situ and physics track retention at the end of the first year of upper secondary school using phone-delivered experience sampling method. We applied experience sampling delivered by phone to one group of students in one school. The sample comprised 36 first-year upper secondary school students (median age 16) who enrolled in the last physics course of the first year. Students’ academic emotions during science learning situations were measured using phones three times during each of four physics lessons. Results The logistic regression analysis showed that lack of stress predicted retention in the physics track. Conclusions Via questionnaires delivered by phone, it is possible to capture students’ academic emotions in situ, information on which may help teachers to support students emotionally during their physics studies. In addition, reflecting their situational academic emotions, students could perhaps make better-informed decisions concerning their studies in STEM subjects.
  • Hatano, Y.; Lee, S.E.; Likonen, J.; Koivuranta, S.; Hara, M.; Masuzaki, M.; Asakura, N.; Isobe, K.; Hayashi, T.; Ikonen, J.; Widdowson, A.; EUROfusion Consortium, JET; Ahlgren, Tommy (2019)
    Tritium (T) distributions on tungsten (W)-coated plasma-facing tiles used in the third ITER-like wall campaign (2015-2016) of the Joint European Torus (JET) were examined by means of an imaging plate technique and beta-ray induced x-ray spectrometry, and they were compared with the distributions after the second (2013-2014) campaign. Strong enrichment of T in beryllium (Be) deposition layers was observed after the second campaign. In contrast, T distributions after the third campaign was more uniform though Be deposition layers were visually recognized. The one of the possible explanations is enhanced desorption of T from Be deposition layers due to higher tile temperatures caused by higher energy input in the third campaign.