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- Ognissanti, Damiano, 1990
(författare)
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A study of involuntary distance teachers’ experiences
- 2021
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Ingår i: Bidrag från 8:e Utvecklingskonferensen för Sveriges ingenjörsutbildningar. - 9789178672813 ; , s. 118-130
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Konferensbidrag (refereegranskat)abstract
- In the spring of 2020, a study was made on university teachers in mathematics who, at very short notice, were forced to change their teaching to distance education due to the Covid-19 restrictions. Five teachers who had not planned to teach at a distance have been interviewed and their views on, and experience of, distance learning have been analysed. The social interaction between teacher and student was important not only for the students’ well-being but also for the teacher’s and that it influenced the teacher’s decision-making during the lesson. The lack of visual and audial input from the students affected the teachers’ decision-making process. The teachers perceived the technology as something problematic or limiting. Since not just the tool itself affects the user, but also the user’s knowledge and skill affect how the tools is used, it is hard to say whether their ability to teach would either benefit or be disadvantaged in the long run by the change of tools. In some cases, the teachers were, by the circumstances, forced to retain a teacher-focused teaching instead of a student-focused one, which could affect their relationship with the students in the long run. The attitude towards distance education slowly became more positive, given that the form of teaching they were used to was still at the centre and that the goal was not to completely replace the way a teacher communicates with a student.
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| 2. |
- Olausson, Michael, et al.
(författare)
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Long-term Transplant Function After Thrombolytic Treatment Ex Vivo of Donated Kidneys Retrieved 4 to 5 Hours After Circulatory Death
- 2022
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Ingår i: Transplantation. - 0041-1337. ; 106:12, s. 2348-2359
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Tidskriftsartikel (refereegranskat)abstract
- Background. Using a novel thrombolytic technique, we present long-term transplant function, measured by creatinine and iohexol clearance, after utilizing kidneys from porcine donors with uncontrolled donation after circulatory deaths, with 4.5–5 h of warm ischemia. Methods. Pigs in the study group were subjected to simulated circulatory death. After 2 h, ice slush was inserted into the abdomen and 4.5 h after death, the kidneys were retrieved. Lys-plasminogen, antithrombin-III, and alteplase were injected through the renal arteries on the back table. Subsequent ex vivo perfusion was continued for 3 h at 15°C, followed by 3 h with red blood cells at 32°C, and then transplanted into pigs as an autologous graft as only renal support. Living-donor recipient pigs that did not receive ex vivo perfusion, and unilateral nephrectomized pigs served as the controls. Results. Pigs in the study group (n = 13), surviving 10 d or more were included, of which 7 survived for 3 mo. Four animals in the living-donor group (n = 6) and all 5 nephrectomized animals survived for 3 mo. Creatinine levels in the plasma and urine, neutrophil gelatinase-associated lipocalin levels, Kidney Injury Marker-1 expression, and iohexol clearance at 3 mo did not differ significantly between the study and living-donor groups. Histology and transmission electron microscopy after 3 mo showed negligible fibrosis and no other damage. Conclusions. The present method salvages kidneys from extended unontrolled donation after circulatory death using thrombolytic treatment while preserving histology and enabling transplantation after ex vivo reconditioning, with clinically acceptable late function after 3 mo, as measured by creatinine and iohexol clearance.
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