| 1. |
- Annas, Anita, et al.
(författare)
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Basal and induced EROD activity in the chorioallantoic membrane during chicken embryo development
- 1999
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Ingår i: Environmental Toxicology and Pharmacology. - 1382-6689 .- 1872-7077. ; 8:1, s. 49-52
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The chorioallantoic membrane (CAM) is a highly vascularized tissue that takes part in the respiratory exchange of gases through the eggshell. Although the CAM may be exposed to environmental contaminants, its response to pollutants has not been studied. We examined the cytochrome P4501A (CYP1A)-catalyzed deethylation of 7-ethoxyresorufin (EROD) in the CAM during chicken embryo development. EROD was constitutively present and was inducible by the aryl hydrocarbon (Ah) receptor agonist 3,3′,4,4′,5-pentachlorobiphenyl (PCB 126). Our results suggest the CAM as a first line of defence of the avian embryo against toxic compounds, but also as a target for CYP1A-activated chemicals.
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| 2. |
- Jägerskog, Ann-Sofie, et al.
(författare)
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Qualitative differences in the ability to analyse societal issues : the example of the Mediterranean refugee crisis
- 2019
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Ingår i: Thinking Tomorrow’s Education.
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Konferensbidrag (refereegranskat)abstract
- This study contributes to the understanding of what it means to be able to analyse societal issues in Social Studies education, an ability considered central inboth compulsory and upper secondary education, but not thoroughly explored in previous research (Barton & Avery, 2016). Providing a richer understanding ofthis ability is crucial in order to design teaching that effectively enables students in different age groups to develop this ability. The study focuses on students’analysis of the 2015 Mediterranean refugee crisis and was carried out as a learning study with iteratively conducted research lessons in four classes in year 1, 6and 8 (compulsory education) and year 2 in upper secondary education. The data, consisting of written student responses to open-ended questions andrecorded group discussions, was analysed using phenomenographic methods (Marton, 2015). Five qualitatively different ways of analysing the migration crisiswere identified, where students to various extent expressed an understanding of the complexity concerning causation and the importance of taking different400dimensions into consideration. Also, three critical aspects were identified as necessary for students to discern in order to develop more qualified ways ofanalysing the societal issue in focus. Results suggest that the most qualified way of analysing the migration situation was characterised by seeing theMediterranean refugee crisis as a dynamic process, where a consequence can also be a cause and where different dimensions are related. The studycontributes with important implications for teaching Social Studies as well as to theory concerning the ability to analyse
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| 3. |
- Jägerskog, Ann-Sofie, et al.
(författare)
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The migration crisis as a multidimensional movement – qualitative differences in the ability to analyse complex societal issues
- 2019
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Konferensbidrag (refereegranskat)abstract
- The aim of this presentation is to present a proposal of what it means to be able to analyse societal issues in social studies education. This ability is considered central in both compulsory and upper secondary Social Studies education, and it has been suggested as one of several ways of thinking, that may be significant for Social Studies as a subject (Sandahl 2015). However, we still do not know much about what analysing in the Social Sciences means in general and for students in different age groups (Barton & Avery, 2016). Identifying this is crucial in order to design teaching that effectively enables students in different age groups to develop this ability. The study addresses the question of what it means to be able to analyse societal issues, with a focus on the 2015 migration situation, and was carried out as a learning study with iteratively conducted research lessons with students in year 1, 6 and 8 in compulsory school and year 2 in upper secondary school. The data, consisting of written student responses to open-ended questions (pre- and post-tests), as well as recorded group discussions, were analysed using phenomenographic methods (Marton, 2014) in order to identify qualitatively different ways of analysing the societal issue in focus. Results suggest that the most qualified way of analysing the migration situation was characterised by (i) seeing the migration situation as a dynamic process, where (ii) a consequence can also be a cause and where (iii) different dimensions are related.
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| 4. |
- Jägerskog, Ann-Sofie, 1977-, et al.
(författare)
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Varför fortsätter flykten över Medelhavet? : Innebörden av att göra en kausalanalys av en samhällsfråga
- 2021
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Ingår i: Forskning om undervisning och lärande. - 2000-9674 .- 2001-6131. ; 9:2, s. 5-29
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Tidskriftsartikel (refereegranskat)abstract
- Denna artikel bygger på en studie som undersöker vad det innebär att analysera ensamhällsfråga i samhällskunskap, en viktig del av kritiskt tänkande, och vad eleverbehöver erfara i undervisningen för att utveckla en mer kvalificerad analysförmåga.Elever från samtliga stadier i grundskolan ombads att, före och efter en lektion somfokuserade på flyktingsituationen kring Medelhavet, skriftligt besvara en fråga omorsaker till denna flykt. En fenomenografisk analys av de 233 elevsvar som genererades visade att det sätt som eleverna erfor flyktingsituationen på var tydligt kopplat tillkvalitén på deras analyser. I analysen av elevsvaren identifierades tre aspekter somtycks vara kritiska för elever att urskilja för att de ska kunna kvalificera sina kausalanalyser av en samhällsfråga. Dessa aspekter berör en samhällsfrågas dynamik,komplexiteten i kausalitet och vikten av att ta olika dimensioner i beaktande (somsamhälleliga respektive individuella dimensioner eller historiska respektive framtidadimensioner). Dessa aspekter visade sig var viktiga för elever i alla årskurser somingick i studien. Artikeln diskuterar även implikationer för undervisning.
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| 5. |
- Nordin, Andreas, et al.
(författare)
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Co-Combustion of Municipal Sewage Sludge and Biomass in a Grate Fired Boiler for Phosphorus Recovery in Bottom Ash
- 2020
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Ingår i: Energies. - : MDPI. - 1996-1073. ; 13:7
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Tidskriftsartikel (refereegranskat)abstract
- Phosphorus has been identified as a critical element by the European Union and recycling efforts are increasingly common. An important phosphorus-containing waste stream for recycling is municipal sewage sludge (MSS), which is used directly as fertilizer to farmland. However, it contains pollutants such as heavy metals, pharmaceutical residues, polychlorinated bi-phenyls (PCBs) and nano-plastics. The interest in combustion of MSS is continuously growing, as it both reduces the volume as well as destroys the organic materials and could separate certain heavy metals from the produced ashes. This results in ashes with a potential for either direct use as fertilizer or as a suitable feedstock for upgrading processes. The aim of this study was to investigate co-combustion of MSS and biomass to create a phosphorus-rich bottom ash with a low heavy metal content. A laboratory-scale fixed-bed reactor in addition to an 8 MWth grate-boiler was used for the experimental work. The concentration of phosphorus and selected heavy metals in the bottom ashes were compared to European Union regulation on fertilizers, ash application to Swedish forests and Swedish regulations on sewage sludge application to farmland. Element concentrations were determined by ICP-AES complemented by analysis of spatial distribution with SEM-EDS and XRD analysis to determine crystalline compounds. The results show that most of the phosphorus was retained in the bottom ash, corresponding to 9-16 wt.% P2O5, while the concentration of cadmium, mercury, lead and zinc was below the limits of the regulations. However, copper, chromium and nickel concentrations exceeded these standards.
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| 6. |
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| 7. |
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| 8. |
- Strandberg, Max, et al.
(författare)
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Vad är det elever i olika åldrar kan när de kan analysera flyktingsituationen?
- 2018
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Varför flyr många, varför stannar andra kvar, hur påverkas individer och samhälle av flyktingsituationen? Vad innebär det att kunna svara på dessa frågor för elever i olika åldrar? Studien har genom en learning study tillsammans med tio verksamma lärare utvecklat och undersökt undervisning om och lärande av analys av flyktingsituationen i årskurserna 1, 6, 8 samt år 2 på gymnasiet. Undervisningsdesignen utgick från kartläggningar av hur elever i olika årskurser uppfattade och analyserade flyktingsituationen. De mest kvalificerade elevsvaren utmärks av att analysen relaterar till flyktingsituationen som en dynamisk process, använder konsekvenser i en processkedja även som orsaker, samt relaterar flera olika dimensioner till varandra. Vi exemplifierar undervisning som möjliggjorde även för de yngsta eleverna att uppvisa denna slags analys.
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| 9. |
- Tväråna, Malin, 1974-, et al.
(författare)
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Qualitative differences in the ability to analyse societal issues – the example of the Mediterranean refugee crisis
- 2019
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Ingår i: Book of Abstracts. ; , s. 400-401
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Konferensbidrag (refereegranskat)abstract
- The aim of this presentation is to present a proposal of what it means to be able to analyse societal issues in social studies education. This ability is considered central in both compulsory and upper secondary Social Studies education, and it has been suggested as one of several ways of thinking, that may be significant for Social Studies as a subject (Sandahl 2015). However, we still do not know much about what analysing in the Social Sciences means in general and for students in different age groups (Barton & Avery, 2016). Identifying this is crucial in order to design teaching that effectively enables students in different age groups to develop this ability. The study addresses the question of what it means to be able to analyse societal issues, with a focus on the 2015 migration situation, and was carried out as a learning study with iteratively conducted research lessons with students in year 1, 6 and 8 in compulsory school and year 2 in upper secondary school. The data, consisting of written student responses to open-ended questions (pre- and post-tests), as well as recorded group discussions, were analysed using phenomenographic methods (Marton, 2014) in order to identify qualitatively different ways of analysing the societal issue in focus. Results suggest that the most qualified way of analysing the migration situation was characterised by (i) seeing the migration situation as a dynamic process, where (ii) a consequence can also be a cause and where (iii) different dimensions are related.
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| 10. |
- Van Bulck, Liesbet, et al.
(författare)
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Patient-reported outcomes of adults with congenital heart disease from eight European countries : scrutinising the association with healthcare system performance
- 2019
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Ingår i: European Journal of Cardiovascular Nursing. - : Sage Publications. - 1474-5151 .- 1873-1953. ; 18:6, s. 465-473
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Tidskriftsartikel (refereegranskat)abstract
- Background: Inter-country variation in patient-reported outcomes of adults with congenital heart disease has been observed. Country-specific characteristics may play a role. A previous study found an association between healthcare system performance and patient-reported outcomes. However, it remains unknown which specific components of the countries’ healthcare system performance are of importance for patient-reported outcomes.Aims: The aim of this study was to investigate the relationship between components of healthcare system performance and patient-reported outcomes in a large sample of adults with congenital heart disease.Methods: A total of 1591 adults with congenital heart disease (median age 34 years; 51% men; 32% simple, 48% moderate and 20% complex defects) from eight European countries were included in this cross-sectional study. The following patient-reported outcomes were measured: perceived physical and mental health, psychological distress, health behaviours and quality of life. The Euro Health Consumer Index 2015 and the Euro Heart Index 2016 were used as measures of healthcare system performance. General linear mixed models were conducted, adjusting for patient-specific variables and unmeasured country differences.Results: Health risk behaviours were associated with the Euro Health Consumer Index subdomains about patient rights and information, health outcomes and financing and access to pharmaceuticals. Perceived physical health was associated with the Euro Health Consumer Index subdomain about prevention of chronic diseases. Subscales of the Euro Heart Index were not associated with patient-reported outcomes.Conclusion: Several features of healthcare system performance are associated with perceived physical health and health risk behaviour in adults with congenital heart disease. Before recommendations for policy-makers and clinicians can be conducted, future research ought to investigate the impact of the healthcare system performance on outcomes further.
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