| 1. |
- Araujo, R., et al.
(författare)
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New aristonectine elasmosaurid plesiosaur specimens from the Early Maastrichtian of Angola and comments on paedomorphism in plesiosaurs
- 2015
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Ingår i: Netherlands Journal of Geosciences-Geologie en Mijnbouw. - : Cambridge University Press (CUP). - 0016-7746 .- 1573-9708. ; 94:1, s. 93-108
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Tidskriftsartikel (refereegranskat)abstract
- New elasmosaurid plesiosaur specimens are described from the Early Maastrichtian of Angola. Phylogenetic analyses reconstruct the Angolan taxon as an aristonectine elasmosaurid and the sister taxon of an unnamed form of similar age from New Zealand. Comparisons also indicate a close relationship with an unnamed form previously described from Patagonia. All of these specimens exhibit an ostensibly osteologically immature external morphology, but histological analysis of the Angolan material suggests an adult with paedomorphic traits. By extension, the similarity of the Angolan, New Zealand and Patagonian material indicates that these specimens represent a widespread paedomorphic yet unnamed taxon.
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| 2. |
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| 3. |
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| 4. |
- Öhlander, Björn, et al.
(författare)
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Geochemistry of the fellingsbro type granites, south central Sweden
- 1988
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Ingår i: Geologie & Mijnbouw. - : Kluwer Academic Publishers. - 0016-7746 .- 1573-9708. ; 67:2-4, s. 213-225
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Tidskriftsartikel (refereegranskat)abstract
- The Fellingsbro granite sensu stricto is a massive coarse-grained rock characterized by red, angular microcline megacrysts up to 7 cm long. The Lisjo granite is of the same type as the Fellingsbro granite but is situated 20 km to the NE. Gravity studies suggest that the Fellingsbro and Lisjo granites rose from a huge granite ridge through structuraly controlled root zones, forming mushroom-shaped intrusions. These porphyritic granites have the geochemical characteristics (eg high Y, Nb, Zr and HREE) of granites generated as "within-plate' or tensional rifting environments. The even-grained interior of the Lisjo granite and the contemporaneous Dingtuna and Pingstaberg granites, were generated by differentiation of granites with similar characteristics as the porphyritic Fellingsbro granite. Recently published U-Pb zircon datings have demonstrated that the Smaland-Varmland granite-porphyry Belt has approximately the same age as the granites in this study. We speculate that both groups were emplaced in a tensional environment on the continental side of a subduction related calc-alkaline belt, remnants of which may be preserved in the SW Swedish Gneiss Region.
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| 6. |
- Jagt, JWM, et al.
(författare)
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New records of the tylosaurine mosasaur Hainosaurus from the (Late Cretaceous) of central Poland
- 2005
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Ingår i: Netherlands Journal of Geosciences-Geologie en Mijnbouw. - 0016-7746. ; 84:3, s. 303-306
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Tidskriftsartikel (refereegranskat)abstract
- Two isolated mosasaur teeth, one from the upper Campanian of Piotrawin, the other from the upper Maastrichtian at Nasilow (Wisla River valley, central Poland), recently described as Plioplatecarpinae sp. A and Plioplatecarpinae sp. B, respectively, are reassigned to the tylosaurine genus Hainosaurus Dollo, 1885. The present record thus adds to the list of Hainosaurus species known to date from elsewhere in Europe (Sweden, Belgium and England).
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| 7. |
- Lindgren, Johan, et al.
(författare)
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Danish mosasaurs
- 2005
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Ingår i: Netherlands Journal of Geosciences-Geologie en Mijnbouw. - 0016-7746. ; 84:3, s. 315-320
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Tidskriftsartikel (refereegranskat)abstract
- Presented are the first formal descriptions of mosasaur remains of Maastrichtian age from the Danish mainland (Jylland, Sjaelland); just two taxa are recognised, viz. Mosasaurus cf. hoffmanni and Plioplatecarpus sp. Recent finds include an association of skeletal fragments, inclusive of a single marginal tooth crown, from within 10 metres or so of the K/T boundary near Holtug, Stevns Klint (Sjaelland, eastern Denmark), here assigned to Plioplatecarpus sp. A brief review of previous records of Danish mosasaurs is added.
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| 8. |
- Fransson, Göran, 1968-, et al.
(författare)
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From a student perspective, what constitutes a good (or less good) use of ICT in teaching?
- 2018
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Ingår i: Education and Information Technologies. - : Springer Science and Business Media LLC. - 1360-2357 .- 1573-7608. ; 23:5, s. 2155-2177
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Tidskriftsartikel (refereegranskat)abstract
- This paper investigates what upper secondary school students regard as good or less good teaching using ICT. 367 Swedish upper secondary students in 2 schools responded to a web-based questionnaire. The students were asked to describe one of their teachers who used ‘ICT in a way that made them learn very well, and one who used ICT in a way that made them learn less well’ and to describe what these teachers did and why their teaching was understood as good or less good. 18 themes were identified, of which 17 were combined into eight overall counterpart themes and one non-counterpart theme. ‘Clarity’ was the most prominent theme, followed by ‘teachers’ ‘ICT skills’, ‘uses ICT in a good way’, ‘fun factor’, ‘puts information on the LMS’, ‘varies the teaching methods’, ‘demonstrates how to use ICT’ and ‘general pedagogical skills’. The results show that although the specific focus is on students’ views of their teachers’ use of ICT, general pedagogical skills are a major focus in the themes. Effectiveness is an explicit theme in terms of ICT adding value to teaching and learning, while ineffectiveness is an implicit underlying dimension in the themes relating to less good teaching. It is also evident that the students value the same teacher’s use of ICT in teaching differently.
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| 9. |
- Kännaste, Astrid, et al.
(författare)
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Volatiles from a Mite-Infested Spruce Clone and Their Effects on Pine Weevil Behavior
- 2009
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Ingår i: Journal of Chemical Ecology. - : Springer Science and Business Media LLC. - 0098-0331 .- 1573-1561. ; 35:10, s. 1262-1271
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Tidskriftsartikel (refereegranskat)abstract
- Induced responses by Norway spruce (Picea abies) seedlings to feeding damage by two mite species were studied by analyzing the volatiles emitted during infestation. Four specimens of a Norway spruce (Picea abies L.) clone were infested with mites of Nalepella sp., another four with Oligonychus ununguis, and four were kept mite-free as controls. After a year of infestation, spruce volatiles were collected, analyzed, and identified using SPME-GC-MS. In addition, enantiomers of chiral limonene and linalool were separated by two-dimensional GC. Methyl salicylate (MeSA), (-)-linalool, (E)-beta-farnesene, and (E,E)-alpha-farnesene were the main volatiles induced by both species of mites, albeit in different proportions. The ability of the main compounds emitted by the mite-infested spruces to attract or repel the pine weevil, Hylobius abietis (L.), was tested. (E)-beta-farnesene was found to be attractive in the absence of spruce odor, whereas methyl salicylate had a deterrent effect in combination with attractive spruce odor. The other tested compounds had no significant effects on the behavior of the weevils.
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| 10. |
- Segalini, Antonio, et al.
(författare)
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Techniques for the Eduction of Coherent Structures from Flow Measurements in the Atmospheric Boundary Layer
- 2012
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Ingår i: Boundary-layer Meteorology. - : Springer. - 0006-8314 .- 1573-1472. ; 143:3, s. 433-450
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Tidskriftsartikel (refereegranskat)abstract
- Two empirical methods to detect coherent motions embedded in the flow field have been compared, namely the variable interval time average (VITA) method and a wavelet-based technique, both with artificial signals as well as velocity measurements from the atmospheric boundary layer over a forest canopy. It has been found that the wavelet method is slightly better than the VITA approach in coherent structure eduction, even if the results of both techniques are comparable. Also the application of the present approach to simultaneous conditionally sampled wind data has highlighted some important features of coherent structures and gust generation in canopy flows.
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| 11. |
- Trolle Lagerros, Ylva, et al.
(författare)
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Estimating physical activity using a cell phone questionnaire sent by means of short message service (SMS): a randomized population-based study
- 2012
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Ingår i: European Journal of Epidemiology. - : Springer Verlag (Germany). - 0393-2990 .- 1573-7284. ; 27:7, s. 561-566
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Tidskriftsartikel (refereegranskat)abstract
- An investigation in a randomized population-based Swedish study with 564 participants aged 18-80 years showed that mean physical activity levels obtained using short message service (SMS) by means of cell phones (n = 171) were equal to corresponding levels obtained when sending identical questions by web (n = 182) or paper (n = 211). The response rates were similar for the SMS, web and paper groups.
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