| 11. |
- Falk, Erik, 1962-
(författare)
-
Språkdidaktisk läroboksanalys för ämneslärautbildningen i svenska
- 2020
-
Ingår i: Språkdidaktik i praktiken. - Uppsala : Uppsala universitet. - 9789150628524 ; , s. 123-140
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Följande studie har som syfte att utreda om läroboksanalys kan vara en språkdidaktiskt värdefull lärandeaktivitet för studenter på ämneslärarutbildningen i svenska. Utredningen utgår från en explorativ analys av en lärobok i svenska för gymnasieskolan.Denna analys ställer frågan i vilken grad läroboken gör de grundläggande språkliga begreppen i svenskkursens centrala innehåll till redskap för kommunikation och kunskapsutveckling för eleverna i enlighet med ämnesplanen i svenska. Metoden är en närläsning av lärobokens delar som rör språkliga begrepp och tolkar språkdidaktiken med stöd av skolans styrdokument och utbildningens ämnesdidaktiska kurslitteratur. På grundval av den analysen diskuteras det språkdidaktiska värdet av läroboksanalys i ämneslärarutbildningen.Slutsatsen blir att en läroboksanalys kan ge språkdidaktisk vägledning för studenter i den grundläggande ämneslärarutbildningen då analysen tar stöd av skolans styrdokument och av kurslitteratur som presenterar didaktiska teorier, undersökningar och undervisningsmetoder. Genom en sådan analys kan studenten upptäcka styrkor och svagheter i lärobokens språkdidaktik och värdera den som stöd för den egna yrkesutövningen.Studien kommer till slutsatsen att den aktuella läroboksanalysen på grundläggandenivå har sina begränsningar i teoretisk underbyggnad men att den ändå kan skapa en förståelse för sambandet mellan beprövad erfarenhet och vetenskaplig grund.
|
|
| 12. |
- Falk, Erik
(författare)
-
‘That little space’ : Locating Abdulrazak Gurnah in the Global Literary Marketplace
- 2020
-
Ingår i: Nordic Journal of English Studies. - Karlstad : University of Gothenburg - Department of Languages and Literatures. - 1502-7694 .- 1654-6970. ; 19:4, s. 150-168, s. 143-160
-
Tidskriftsartikel (refereegranskat)abstract
- The transformation of the publishing world in recent decades—which includes, among other things, the increasing significance of large retail outlets, the emergence and establishment of literary agents, and the merger of publishing houses into large media corporations—has been amply documented. Among the consequences for postcolonial literary fiction, and African English-language fiction, which is the subject here, are increasing use of the author as a public figure and marketing device, and heightened expectations on cultural representativity that link authors to particular places and cultures. With a focus on the initial and middle phases of his career, this article discusses the ways in which East African author Abdulrazak Gurnah has responded to such pressures in his novels and in essays and articles. It shows how both the form and the content of Gurnah’s writing exemplify a double effort to complicate ideas which frame authors and their texts through culture-specific identities and the seemingly opposite, generalizing notion of the postcolonial’ author which flattens history—a strategy of ‘self-authorization’ which can be seen as Gurnah’s critical resistance towards received categories used in both book marketing and postcolonial authorship. In a further twist, this resistance is in some tension with Gurnah’s choice to write in English and use an unmarked linguistic style and register since these seemingly align with marketing interests and enable easy translation which facilitates the global circulation of his books.
|
|
| 13. |
|
|
| 14. |
|
|
| 15. |
- Falk, John, et al.
(författare)
-
Immersion freezing ability of freshly emitted soot with various physico-chemical characteristics
- 2021
-
Ingår i: Atmosphere. - : MDPI AG. - 2073-4433. ; 12:9
-
Tidskriftsartikel (refereegranskat)abstract
- The immersion freezing ability of soot particles has in previous studies been reported in the range of low/insignificant to very high. The aims of this study were to: (i) perform detailed physico-chemical characterisation of freshly produced soot particles with very different properties, (ii) investigate the immersion freezing ability of the same particles, and (iii) investigate the potential links between physico-chemical particle properties and ice-activity. A miniCAST soot generator was used to produce eight different soot samples representing a wide range of physico-chemical properties. A continuous flow diffusion chamber was used to study each sample online in immersion mode over the temperature (T) range from −41 to −32◦C, at a supersaturation of about 10% with respect to liquid water. All samples exhibited low to no heterogeneous immersion freezing. The most active sample reached ice-activated fractions (AF) of 10−3 and 10−4 at temperatures of 1.7 and 1.9 K, respectively, above the homogeneous freezing temperature. The samples were characterized online with respect to a wide range of physico-chemical properties including effective particle density, optical properties, particle surface oxidation and soot maturity. We did observe indications of increasing immersion freezing ice-activity with increasing effective particle density and increasing particulate PAH fraction . Hence, those properties, or other properties co-varying with those, could potentially enhance the immersion freezing ice-activity of the studied soot particle types. However, we found no significant correlation between the physico-chemical properties and the observed ice-nucleating ability when the particle ensemble was extended to include previously published results including more ice-active biomass combustion soot particles. We conclude that it does not appear possible in general and in any straightforward way to link observed soot particle physico-chemical properties to the ice-nucleating ability using the online instrumentation included in this study. Furthermore, our observations support that freshly produced soot particles with a wide range of physico-chemical properties have low to insignificant immersion freezing ice-nucleating ability.
|
|
| 16. |
- Falk, Marcus, et al.
(författare)
-
Wealth, work, and industriousness, 1670–1860: Evidence from rural Swedish probates
- 2023
-
Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- This paper uses a new database of 1,891 probate inventories from rural southern Sweden from the 1670s to the 1860s to investigate the development of wealth and productive capacity in the Swedish countryside in this period. We show that while real wages fell in the 1700s, material living standards — as measured by the contents of probate inventories — improved, indicating greater labour inputs. This was not driven by more widespread ownership of the means of production, as the rural underclasses rather owned less means of production over time, and to some extent farmers did too. The wage labour inputs of the labouring classes intensified, and for workers’ and farmers’ households alike, textile production at home became more important; in the 1860s, half of working-class households owned spinning wheels and weaving looms, and for farmer households, the shares were 68 and 82 per cent, respectively. We argue that the results support an interpretation of an industrious revolution in eighteenth- and nineteenth-century Sweden, with the improving material living standards shown by probate inventories, in contrast to the stagnating GDP per capita suggested by historical national accounts research.
|
|
| 17. |
- Falk, Ragnhild S., et al.
(författare)
-
Fasting serum potassium and long-term mortality in healthy men
- 2021
-
Ingår i: BMC Public Health. - : Springer Science and Business Media LLC. - 1471-2458. ; 21:1
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Serum potassium levels have been positively associated with cardiovascular mortality, but little is known about the association with cancer mortality and death due to other causes. We examined whether serum levels of potassium were associated with long-term mortality in a healthy cohort. Methods: Oslo Ischemia Study invited 2341 initially healthy men aged 40–59 years with no use of medication to a comprehensive health survey in 1972. Fasting serum level of potassium (mmol/L) was ascertained at baseline for 1989 men. We have complete follow-up for death throughout 2017. Cox proportional hazard models were used to calculate hazard ratios (HRs) with 95% confidence intervals (CIs) and adjusted for multiple confounders. Results: After a median follow-up of 30 years (interquartile range 21.2–38.7), 1736 deaths were observed, of which 494 were cancer deaths, 688 cardiovascular deaths, and 536 deaths related to other causes. Restricted cubic spline analysis showed that potassium level was linearly and positively associated with long-term cancer mortality; HR per mmol/L 1.8, 95% CI 1.4–2.4. Compared with low levels of potassium (≤ 4.0 mmol/L), men with high levels (≥4.6 mmol/L) showed a significantly 78% higher risk of cancer death. A positive linear association was found for all-cause mortality (HR per mmol/L 1.6, 95% CI 1.4–1.8), and for cardiovascular (HR per mmol/L 1.4, 95% CI 1.1–1.7) and other cause mortality (HR per mmol/L 1.7, 95% CI 1.3–2.2). Conclusions: These findings suggest that serum potassium level appears to predict long-term mortality in healthy middle-aged men, and it might imply future surveillance strategies for individuals with high serum potassium levels.
|
|
| 18. |
- Helgesson, Stefan, et al.
(författare)
-
Series introduction : The cosmopolitan, the vernacular and the semi-periphery
- 2022
-
Ingår i: Northern Crossings : Translation, Circulation and the Literary Semi-periphery - Translation, Circulation and the Literary Semi-periphery. - : Bloomsbury Academic. - 9781501374265 - 9781501374258 - 9781501374272 - 9781501374241 - 9781501374289
-
Bokkapitel (refereegranskat)
|
|
| 19. |
- Jönsson, Daniel, 1984-, et al.
(författare)
-
Inviwo - A Visualization System with Usage Abstraction Levels
- 2020
-
Ingår i: IEEE Transactions on Visualization and Computer Graphics. - : IEEE. - 1077-2626 .- 1941-0506. ; 26:11, s. 3241-3254
-
Tidskriftsartikel (refereegranskat)abstract
- The complexity of todays visualization applications demands specific visualization systems tailored for the development of these applications. Frequently, such systems utilize levels of abstraction to improve the application development process, for insta
|
|
| 20. |
- Karlsson, Per Erik, et al.
(författare)
-
The vulnerability of northern European vegetation to ozone damage in a changing climate An assessment based on current knowledge
- 2021
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The potential vulnerability of vegetation at northern latitudes to ozone damage was assessed based on current knowledge with regard to air ozone concentrations and leaf ozone uptake as well as to plant traits affecting ozone tolerance. The focus was on the northern European arctic, alpine and northern boreal vegetation zones, with a special focus on high-altitude vegetation. In particular, we analysed if there are increasing risks for ozone impacts on northern vegetation due to high spring ozone concentrations in relation to climate change induced shifts such as e.g. an earlier start of the growing season. The ozone concentrations in these regions are characterized by the influence of a combination of conditions caused by high latitudes and high altitudes. Ozone concentrations increase with altitude and the difference in ozone concentrations between day and night are smaller at high-altitude and high-latitude sites. Summer periods with long daylight conditions potentially promote the leaf ozone uptake through the open stomata. The aims of this report were: • To assess the current state of knowledge regarding the potential vulnerability of far northern vegetation to ozone damage, today and in the future • To provide advice for policy implications regarding necessary ozone precursor emission abatement • To provide advice for future research and monitoring of ozone impacts on the vegetation at northern latitudes Ongoing environmental changes affecting far northern latitude ecosystems were reviewed. Current and novel methods were described for how to estimate the time of year during which the ozone exposure for vegetation should be accumulated. Time trends for ozone concentrations at northern latitudes were analysed. Ozone episodes with high concentrations at far northern latitudes were described. Source attributions of northern ozone concentrations were analysed. Environmental conditions at far northern latitudes that might be important for ozone damage were evaluated. Plant traits that can influence the ozone vulnerability were discussed. Current experimental results for ozone injury on northern plant species were evaluated. Future scenarios for ozone impact on northern vegetation were discussed. Some important results from the analyses are described below. At high altitudes and high latitudes, the ozone concentrations are relatively similar during day- and night-time. Furthermore, at high latitudes, the long daylight duration during the summer has the potential to increase the duration of the daily period with plant gas exchange and leaf ozone uptake. Therefore, the absorption of ozone through the stomata may potentially be higher at northern latitudes. However, measurements of light intensity and quality at northern sites in combination with a simple calculation example illustrated that this probably was not the case, since the potential added ozone uptake in the early morning and late evening at northern sites may be cancelled out by a lower ozone uptake in the middle of the day, as compared to southern sites. Both data on budburst and data on ecosystem CO2 exchange as well as meteorological observations show that there has been a development towards an earlier start of the growing season during the year, with approximately 0.5 – 1 day per year. Thus, there is clear evidence for an earlier start of the growing season, which is likely to continue. However, the timing of the spring ozone maximum is also shifted towards earlier in the year. There is presently no evidence for an increasing overlap between the growing season and the ozone peak. Despite this, there is a potential for increased ozone uptake to vegetation in spring due to the earlier growing start of vegetation and increased uptake of ozone to vegetation in May. The impact of this on the accumulated phytotoxic ozone dose for northern vegetation needs to be investigated further. The overall conclusions about the present and near future ozone vulnerability of northern vegetation were: • There remain uncertainties regarding to what extent northern vegetation is affected by ozone exposure. • According to current knowledge, we could not find evidence that expected changes in ozone concentrations and climate would make the northern arctic, alpine and subalpine vegetation substantially more vulnerable to ozone than other types of European vegetation. • The risk of significant and lasting negative impact of the current exposure to ozone on northern boreal forests is most likely not greater than for boreonemoral and nemoral forests in southern Fennoscandia. • However, peak ozone concentrations occurring in spring and early summer may affect vegetation at northern latitudes in Fennoscandia since the start of the growing season in the future may occur earlier during the year. The policy implications that can be derived from these conclusions were: • The current state of knowledge implies that ecosystems in the far north are not more susceptible to ozone than vegetation in other parts of Europe. Hence, we cannot advocate for a stronger reduction of ozone precursors emissions based exclusively on the ozone sensitivity of vegetation in the far north. • Policies designed to reduce emissions of ozone precursors to protect vegetation in other parts of Europe as well as in the entire northern hemisphere are likely to suffice to protect vegetation in northern Fennoscandia. There are important remaining knowledge gaps. Our conclusions are based on important, but limited observations. Experimental evidence from investigations specifically designed to study ozone sensitivity of high-altitude vegetation in northern Europe are to a large extent lacking. It is recommended that further experimental research is undertaken to directly compare the ozone sensitivity of plants of high-latitude/high-altitude origin with that of plants (species, genotypes) representative of regions of the southern part of the Nordic region. This research should include the characteristics of the high-latitude climate and other conditions. A specific research question is if the new ozone critical levels for European vegetation based on PODYSPEC (Mapping Manual, 2017) are correct, both regarding calculation methodology as well as impact assessments? In particular, there is a lack of information about the degree of stomata closure during nights in high-latitude area plants. This is important for the modelling of ozone uptake (dry deposition) in these areas and requires coordinated measurement campaigns in close cooperation with modelers. Further research questions may be related to the future development of the northern regions – e.g. oil and gas extraction including flaring, shipping, more tourism and climate change – how will that affect the ozone exposure of in the northern vegetation? Do future ozone precursor emission scenarios describe this correctly? Will warm and dry summers like 2018 become more frequent in connection with climate change, and how will this affect ozone impacts on vegetation? There are currently very few, long term ozone monitoring stations in the arctic and alpine vegetation zones, in particular at high altitudes. Given the expected increase in anthropogenic activities in these areas in combination with climate change, it is strongly recommended to increase the number of high-altitude ozone monitoring sites in these regions.
|
|
