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| 5. |
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A Farewell to Critique?
- 2020
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Ingår i: Konsthistorisk tidskrift/Journal of Art History. - : Informa UK Limited. - 0023-3609 .- 1651-2294. ; 89:2
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Annan publikation (övrigt vetenskapligt/konstnärligt)
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| 6. |
- A. Manneh, Ilana, et al.
(författare)
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Progression in action for developing chemical knowledge
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- In this paper, we discuss the well-known teaching challenge of how to provide undergraduate students with basic chemistry knowledge without making them experience these basics as meaningless and unintelligible. First, we situate the challenge in a classic dilemma: should we teach the necessary basic facts before the chemical explanations or should the explanations be taught before or in parallel to these facts? Here we draw on examples from interviews with graduate students reflecting on their experiences regarding their studies at the undergraduate level. Second, we suggest a way out of the dilemma, through a shift in perspective from the typical progression of facts and explanations towards a purpose and activity-based progression. We conclude with a discussion of implications of such a shift for university chemistry education together with suggestions for future research.
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| 7. |
- A. Marques, Ana F., et al.
(författare)
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The Seven Sisters Hydrothermal System : First Record of Shallow Hybrid Mineralization Hosted in Mafic Volcaniclasts on the Arctic Mid-Ocean Ridge
- 2020
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Ingår i: Minerals. - : MDPI AG. - 2075-163X.
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- We document the discovery of an active, shallow, seafloor hydrothermal system (known as the Seven Sisters Vent Field) hosted in mafic volcaniclasts at a mid-ocean ridge setting. The vent field is located at the southern part of the Arctic mid-ocean ridge where it lies on top of a flat-topped volcano at ~130 m depth. Up to 200 deg C phase-separating fluids vent from summit depressions in the volcano, and from pinnacle-like edifices on top of large hydrothermal mounds. The hydrothermal mineralization at Seven Sisters manifests as a replacement of mafic volcaniclasts, as direct intraclast precipitation from the hydrothermal fluid, and as elemental sulfur deposition within orifices. Barite is ubiquitous, and is sequentially replaced by pyrite, which is the first sulfide to form, followed by Zn-Cu-Pb-Ag bearing sulfides, sulfosalts, and silica. The mineralized rocks at Seven Sisters contain highly anomalous concentrations of ‘epithermal suite’ elements such as Tl, As, Sb and Hg, with secondary alteration assemblages including silica and dickite. Vent fluids have a pH of ~5 and are Ba and metal depleted. Relatively high dissolved Si (~7.6 mmol/L Si) combined with low (0.2–0.4) Fe/Mn suggest high-temperature reactions at ~150 bar. A delta-13C value of -5.4 permil in CO2 dominated fluids denotes magmatic degassing from a relatively undegassed reservoir. Furthermore, low CH4 and H2 (<0.026 mmol/kg and <0.009 mmol/kg, respectively) and 3He/4He of ~8.3 R/Racorr support a MORB-like, sediment-free fluid signature from an upper mantle source. Sulfide and secondary alteration mineralogy, fluid and gas chemistry, as well as delta-34S and 87Sr/86Sr values in barite and pyrite indicate that mineralization at Seven Sisters is sustained by the input of magmatic fluids with minimal seawater contribution. 226Ra/Ba radiometric dating of the barite suggests that this hydrothermal system has been active for at least 4670 +/- 60 yr.
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A Swedish Philhellenic Pamphlet from 1821 : "Will you let that sacred voice that echoes in the tender Swedish heart cry out in vain?”
- 2022. - 2022
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Annan publikation (refereegranskat)abstract
- The first volume of Grifos is a publication of a rare, anonymously published philhellenic pamphlet from the year 1821. It was printed in Stockholm, yet it has hitherto remained uncollected by the scholarly community. The pamphlet is published here for the first time with an English translation and a commentary by George Kalpadakis and Vassilios Sabatakakis. In their introduction the authors place the pamphlet in its historical context and discuss its core themes. The original 1821 text, whose images are reproduced in the final section, has been transcribed and translated by both authors. This rather provocative philhellenic text echoes a few central themes of philhellenism that by the time of its publication had already become part of later frequently repeated rhetoric in philhellenic discourses. Probably in the challenging political climate in Sweden vis-à-vis the Greek war of independence, complex attitudes and ideologies, both for and against the struggle during its early phase, are reflected in the text.
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| 12. |
- Aagaard, Marianne, 1985-
(författare)
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Naivt tro att EU kan stoppa bedrägerierna
- 2024
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Annan publikation (populärvet., debatt m.m.)abstract
- Vi kan inte förlita oss på att EU löser våra problem, utan måste själva skapa regler som gynnar trygga betalningssätt.
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| 13. |
- Aagaard, Sunniva M.D. 1977-, et al.
(författare)
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Homoploid hybridization in Central European Diphasiastrum (Lycopodiaceae).
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Three species of homoploid hybrid origin are commonly recognized among Central European Diphasiastrum, and reticulate evolutionary events have for a long time been acknowledged as an important factor contributing to the species count in the genus. Presented evidence obtained from molecular data has until recently been scarce and inconclusive. Recent studies have, however, documented reticulate phylogenetic patterns involving all putative parental combinations reported from Central Europe. Reciprocal crosses involving the same parental combinations have also been confirmed. In order to further explore these putative reticulate events, admixture analyses using a Bayesian approach as implemented in the program NewHybrids are conducted on an expanded dataset obtained from six Central European populations from where putative hybrid taxa are reported. A majority of the accessions included in the analyses were inferred to represent pure bred D. alpinum, D. complanatum, D. tristachyum, F1 hybrids, F2 hybrids or backcrosses with one of the parent species. Accessions displaying ambiguous classification were found in both allopatric parent populations as well as in Central European hybrid populations. Presented results indicate the presence of frequently occurring hybrid zones with first and second generation hybrids as well as backcrosses.
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| 14. |
- Aagaard, Sunniva M.D. 1977-, et al.
(författare)
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Reticulate phylogenetic patterns in diploid European Diphasiastrum (Lycopodiaceae).
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- In Central Europe, three species belonging to Diphasiastrum are considered to be of homoploid hybrid origin. Diphasiastrum issleri is suggested to have originated from a cross between D. alpinum and D. complanatum, D. oellgaardii from D. alpinum and D. tristachyum, and D. zeilleri from D. complanatum and D. tristachyum. Variation at three nuclear regions and two chloroplast microsatellites verify the presence of all three putative parental combinations in Europe. Data obtained with Feulgen DNA image densitometry confirms that all specimens displaying such pattern are diploid. Also, two of three parental combinations have probably arisen repeatedly, implied by the occurrence of chloroplast haplotypes associated with different parents. The presented dataset cannot be used as argument for the existence of independent evolutionary entities hybrid origin. This is nonetheless an important first step in order to address the influence of reticulate evolutionary events in European Diphasiastrum.
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| 15. |
- Aagerup, Ulf, 1969-
(författare)
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To sell or not to sell: overweight users’ effect on fashion assortments
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Overweight people claim to be mistreated by the fashion industry. Fashion companies disagree. Despite the controversy, actual research has been scarce. This study compares the sizes of clothes the four leading mass marketing fashion retailers in Sweden offer to the body sizes of the population. Although branding theory would support the idea of rejecting fat consumers to improve user imagery for fashion brands, such practices were not evident. The main contribution of this paper is that it provides the first quantified empirical evidence on the theory of typical user imagery.In the discussion, it is posited that although mass market fashion brands should be susceptible to negative user imagery related to overweight and obese users, the companies avoid such problems by making garments that are not directly attributable to a specific brand, thus mitigating the negative effect of overweight and obese user imagery.
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| 16. |
- Aagerup, Ulf, 1969-
(författare)
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User BMI effects on mass market fashion brands
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Purpose: The purpose of this paper is to investigate how the weight of users affects the perception of mass market fashion brands.Design/methodology/approach: This study attempts to show effects of typical - as well as ideal user imagery on fashion brands. An experiment was carried out in which 1848 university students replied to a web survey, rating the brand personality of jeans and shirts according to Aaker’s Big Five construct. The garments were worn by digitally manipulated versions of one person as thin, overweight, and obese.Findings: The findings show that consumers’ impressions of mass market fashion brands are significantly affected by the weight of its users. The effect of male user imagery is ambiguous. For women’s fashion on the other hand, slender users are to be preferred.Research limitations/implications: It is possible, even probable, that high fashion would suffer more from negative typical user imagery than would mass market fashion. It would therefore be interesting to replicate this experiment using clothes of higher fashion grade and price.Practical implications: The demonstrated effects of user imagery support the industry practice of slim ideal female imagery. However, excluding customers to boost brand perception should not be an option for these brands.Social implications: The results inform the debate over skinny models vs. “real women” in advertising as well as the debate over discrimination of overweight consumers through assortment decisions.Originality/value: This is the first time typical user imagery effects are included in a study of this type, and it is the first study to test user imagery effects on fashion.
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| 17. |
- Aalberg Haugen, Inger M., 1980-, et al.
(författare)
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Latitudinal phenological adaptation : diapause induction and differentiation between alternative developmental pathways in a butterfly
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- 1. Seasonal phenotypic plasticity entails differential trait expression depending on the time of season. The facultative induction of winter diapause in temperate insects is a developmental switch mechanism often leading to differential expression in life history traits. However, when there is a latitudinal shift from a bivoltine to univoltine life cycle, selection for pathway-specific expression is disrupted, which may allow drift towards less optimal trait values within the non-selected pathway.2. We use field- and experimental data from five Swedish populations of Pararge aegeria to investigate latitudinal variation in voltinism, local adaptation in the diapause switch, and footprints of selection on pathway-specific regulation of life history traits and sexual dimorphism in larval development.3. Field data clearly illustrated how natural populations gradually shift from bivoltinism to univoltinism as latitude increases. This was supported experimentally as the decrease in direct development at higher latitudes was accompanied by increasing critical daylengths, suggesting local adaptation in the diapause switch.4. The differential expression among developmental pathways in development time and growth rate was significantly less pronounced in univoltine populations. Univoltine populations showed no significant signs of protandry during larval development, suggesting that erosion of the direct development pathway under relaxed selection has led to the loss of its sex-specific modifications.
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| 20. |
- Aalders, Johannes Theodor, et al.
(författare)
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Blogal Studies in 2020 and Beyond
- 2020
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Ingår i: School of Blogal Studies.
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Annan publikation (övrigt vetenskapligt/konstnärligt)
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| 21. |
- Aalders, Johannes Theodor, et al.
(författare)
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Why we blog and you should too!
- 2019
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Ingår i: School of Blogal Studies.
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Annan publikation (övrigt vetenskapligt/konstnärligt)
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| 22. |
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| 23. |
- Aardal-Eriksson, Elisabeth, et al.
(författare)
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Pre-trauma Salivary Cortisol Levels and General Health Ratings in Relation to Post-trauma Changes in Cortisol and Psychological Distress after UN-service in Bosnia
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Background: The psychobiology of post-traumatic distress is known to some extent, however the pre-trauma psychobiology is not. The aims of the present study were to relate pre- and post-trauma salivary cortisol levels and general health to post-traumatic distress in a Swedish UN-battalion in Bosnia.Methods: Salivary 8 AM and I 0 PM cortisol levels and "General Health Questionnaire" ratings were collected from 145 subjects before the six months' mission, at return and two and six months after mission. During follow-up, the ratings were extended by the "Impact of Events Scale" (IES) and "Post Traumatic Symptom Scale".Results: Low pre-trauma morning and evening salivary cortisol levels were statistically significantly related to high scores in all rating scales six months after mission and to increasing IES scores during follow-up. Low morning and high evening post-trauma salivary cortisol levels were related to high ratings of psychological distress six months after missionConclusions: Pre-trauma salivary cortisol levels seem to be related to posttrauma psychological distress, however not to the extent that salivary cortisol levels in a simple way could be used for predictive screening.
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| 24. |
- Aardal-Eriksson, Elisabeth, et al.
(författare)
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Twelve Months Follow-up of Salivary Cortisol in Relation to Psychological Distress and General Health in Swedish UN-personnel after Severe Combat Exposure during Six Months Mission in Bosnia
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Background: Our group has presented evidence of relationships between salivary cortisol levels and psychological distress before, during and after trauma-related stress. The aim of the present study was to confirm the part of evidence of relationships between salivary cortisol and posttraumatic distress and their change over time.Methods: Salivary cortisol levels at 8 AM and 10 PM and self-ratings were collected from 106 subjects six and twelve months after a six months UNmission in Bosnia. The rating instruments were the "Impact of Event Scale" (IES), the "Post Traumatic Symptom Scale" and the "General Health Questionnaire".Results: Significant statistical interactions were found between changes in mean cortisol levels and IES scores over time. Decreasing evening cortisol levels over time were significantly related to decreasing IES scores and vice versa. Morning cortisol levels showed negative, and evening cortisol positive correlations with all rating scores.Conclusions: The evidence from previous studies on trauma related stress, that salivary cortisol is related to the development of posttraumatic stress reactions, the morning cortisol in reverse (negative) direction to that (positive) of evening cortisol, were confirmed.
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| 25. |
- Aarnio, Mikko, et al.
(författare)
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Evaluation of PET tracers [11C]D-deprenyl, [11C]L-dideuteriumdeprenyl and [18F]FDG for Visualization of Acute Inflammation in a Rat Model of Pain - Preliminary Findings.
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Purpose: Positron emission tomography with the radioligand [11C]D-deprenyl has shown an increased signal at the location of pain in patients with ankle sprains, rheumatoid arthritis and chronic whiplash injury, but the mechanism of this tracer uptake and its exact binding site in inflammation or tissue injury is still unclear. The aim of this study was to further evaluate [11C]D-deprenyl´s usefulness as a marker of acute inflammation.Methods: An animal PET/CT study was performed three days after the induction of a rat model of inflammatory or surgical pain. Fourteen adult male Sprague-Dawley rats and three tracers [11C]D-deprenyl, [11C]L-dideuterumdeprenyl and [18F]fluorodeoxyglucose were used. Results: No [11C]D-deprenyl accumulation was seen in a rat model of musculoskeletal pain. In the rat model of inflammatory pain all three ligands were shown to visualize the inflamed ankle joint with much lower uptake in the control ankle joint. The uptake was largest with [11C]D-deprenyl and [11C]L- dideuteriumdeprenyl, where approximately 1 % of the injected dose could be found in the affected ankle joint during the first minutes, whereas the uptake of [18F]FDG was approximately 0.5 % of the injected dose. However, the ratio of uptake of the injected ankle joint versus the control ankle joint was much higher for [18F]FDG (around 10 fold increase) than for the two deprenyl enantiomers (2 – 3 fold increase). The uptake pattern of [11C]D-deprenyl and [11C]L-dideuteriumdeprenyl did not show signs of specific binding or irreversible trapping.Conclusions: Contrary to our expectations, of the three tracers only [18F]FDG may be used as markers of peripheral inflammation in a rat model of inflammatory pain. However, as a high site-specificity is required, [11C]D-deprenyl and [11C]L-dideyteriumdeprenyl deserve further exploration regarding sensitivity, specificity and uptake mechanisms in human pain syndromes.
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