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- Asbjörnsson, Gauti, 1985, et al.
(author)
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Improving Students Engagement with Active Learning in Engineering Optimization Lectures
- 2021
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In: Proceedings of the International CDIO Conference. - 2002-1593. - 9786164076167 ; 1:1, s. 535-545
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Conference paper (peer-reviewed)abstract
- In optimisation, as for learning, the synthesises of previous knowledge and current information is essential to achieve defined objectives. The students' objectives are to fulfil the course's intended learning outcomes and possibly, at the same time, develop their knowledge, skills, and attitudes within the subject. The purpose of this work is to incorporate a more collaborative learning environment with active learning activities in the classroom to improve student learning opportunities, their perception of the course and their interest in the subject of optimisation. Within the CDIO initiative, active learning or experiential learning is stated as a key factor in engaging students directly in thinking and problem-solving activities. This can apply to different teaching activities such as assignments, lectures, and assessments. With active learning, the purpose is to involve students more actively in the learning process instead of relying on passive information transfer. Active learning methods aim to facilitate the students' process of creating their understanding of the topic by reflecting, questioning, conjecturing, evaluating and make connections between ideas whilst drawing on ideas, experiences and knowledge of others. In this work, diverse activities for incorporating more interactive learning in the classroom have been implemented in different course lectures, activities such as think pair-share, mind maps, multiple-choice questions, incomplete hands and more. An evaluation of the students' perception of the course and the various activities was carried out at the end of the course. The most considerable improvement was with the overall impression of teaching. That improved between the years from 3.10 to 3.57. The most appreciated activity was the think-pair-share approach, which gave the students a cognitive break from the lecture slides to discuss the topic. However, the response rate was limited but did indicate the students' perspective and what was appreciated. The results will provide a good base for future development.
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| 2. |
- Bockgård, Gustav, 1975-
(author)
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Interaktionell dialektologi : Ett forskningsområde under framväxt
- 2012
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In: Folkmålsstudier. - Helsingfors : Akademiska bokh.. - 0356-1771. ; 50, s. 9-32
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Journal article (peer-reviewed)abstract
- In the field of interactional dialectology researchers use theories and methods from Conversation Analysis and interactional linguistics to explore different kinds of dialectal data. A dialectal utterance (as well as a standard language utterance) is seen not only as a realization of an abstract linguistic system, but as situated in a specific interactional context in which it fulfills a pragmatic, interactional function. A central research question within the field of interactional dialectology is to investigate why a certain dialect feature is used at a certain moment in a conversation, and which consequence this might have for the following turns-at-talk. This methodological approach has, inter alia, a potential to explain intra-individual speech variation within a dialect interview or another recording of dialect speakers. Another central task within the field is to describe the traditional dialect interview regarded as a communicative activity where the interviewer plays an important role, rather than some kind of neutral, objective documentation of a dialect language system.The primary aims of this article are to discuss conditions for the analysis of dialectal materials from an interactional perspective and present my own research in this field. My research can be described as a synthesis of Conversation Analysis, interactional linguistics, construction grammar and dialectology.
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| 3. |
- Coppedge, Michael, et al.
(author)
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V-Dem Comparisons and Contrasts with Other Measurement Projects
- 2017
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Other publication (other academic/artistic)abstract
- For policymakers, activists, academics, and citizens around the world the conceptualization and measurement of democracy matters. The needs of democracy promoters and social scientists are convergent. We all need better ways to measure democracy. In the first section of this document we critically review the field of democracy indices. It is important to emphasize that problems identified with extant indices are not easily solved, and some of the issues we raise vis-à-vis other projects might also be raised in the context of the V-Dem project. Measuring an abstract and contested concept such as democracy is hard and some problems of conceptualization and measurement may never be solved definitively. In the second section we discuss in general terms how the Varieties of Democracy (V-Dem) project differs from extant indices and how the novel approach taken by V-Dem might assist the work of activists, professionals, and scholars.
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| 4. |
- Gianni, Andrea, et al.
(author)
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Bainitic steel grade for solid wheels: metallurgical, mechanical, and in-service testing
- 2009
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In: Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. - 0954-4097 .- 2041-3017. ; 223:2, s. 163-171
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Journal article (peer-reviewed)abstract
- Bainitic steel grades generally have superior rolling contact and thermal fatigue resistances, but poorer wear characteristics when compared with ‘conventional’ pearlitic steel wheels. To improve the wear characteristics, the manufacturing process of bainitic materials needs to be carefully controlled. In this article, the manufacturing process of the ‘MICRALOS’ bainitic steel grade has been described. The main focus is on metallurgical testing activities performed in order to compare the new steel grade with standard pearlitic steels and to predict the service behaviour of the solid bainitic wheels. Further, on-going field tests on the iron ore line between Luleå and Narvik have been reported, with details about measurement methods and results. The performance of the wheels is reviewed and compared with the current scientific knowledge of bainitic steel grades and the deterioration of heavy haul wheels. Finally, benefits of and challenges for bainitic wheels in general and for the MICRALOS grade wheels in particular will be discussed.
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| 7. |
- Mayers, Joshua, 1988, et al.
(author)
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Rapid determination of bulk microalgal biochemical composition by Fourier-Transform Infrared spectroscopy
- 2013
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In: Bioresource Technology. - : Elsevier BV. - 0960-8524 .- 1873-2976. ; 148, s. 215-220
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Journal article (peer-reviewed)abstract
- Analysis of bulk biochemical composition is a key in fundamental and applied studies of microalgae and is essential to understanding responses to different cultivation scenarios. Traditional biochemical methods for the quantification of lipids, carbohydrates and proteins are often time-consuming, often involve hazardous reagents, require significant amounts of biomass and are highly dependent on practitioner proficiency. This study presents a rapid and non-destructive method, utilising Fourier-Transform Infrared (FTIR) spectroscopy for the simultaneous determination of lipid, protein and carbohydrate content in microalgal biomass. A simple univariate regression was applied to sets of reference microalgal spectra of known composition and recognised IR peak integrals. A robust single-species model was constructed, with coefficients of determination r2>0.95, high predictive accuracy and relative errors below 5%. The applicability of this methodology is demonstrated by monitoring the time-resolved changes in biochemical composition of the marine alga Nannochloropsis sp. grown to nitrogen starvation. © 2013 Elsevier Ltd.
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| 8. |
- Mitrut, Andreea, 1977, et al.
(author)
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Investing in children's education: Are Muslim immigrants different?
- 2014
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In: Journal of Population Economics. - : Springer Science and Business Media LLC. - 0933-1433 .- 1432-1475. ; 27:4, s. 999-1022
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Journal article (peer-reviewed)abstract
- Using a unique data set on immigrants living in France in 2003, we investigate whether Muslims invest differently in their children's education compared to non-Muslims. In particular, we want to assess whether educational inequalities between the children of Muslim and non-Muslim immigrants stem from differences between or within families. After controlling for a broad set of individual and household characteristics, we find no difference in education between children of different religions. However, we do find more within-family inequality in children's educational achievements among Muslims relative to non-Muslims. The within-family variance is 15 % higher among Muslims relative to Catholics and 45 % higher relative to immigrants with other religions, but the intra-family inequality remains difficult to explain. Overall, our results suggest that Muslim parents tend to redistribute their resources more unequally among their children.
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| 9. |
- Morgan, L. A., et al.
(author)
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The dynamic floor of Yellowstone Lake, Wyoming, USA : The last 14 k.y. of hydrothermal explosions, venting, doming, and faulting
- 2023
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In: Bulletin of the Geological Society of America. - 0016-7606. ; 135:3-4, s. 547-574
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Journal article (peer-reviewed)abstract
- Hydrothermal explosions are significant potential hazards in Yellowstone National Park, Wyoming, USA. The northern Yellowstone Lake area hosts the three largest hydrothermal explosion craters known on Earth empowered by the highest heat flow values in Yellowstone and active seismicity and deformation. Geological and geochemical studies of eighteen sublacustrine cores provide the first detailed synthesis of the age, sedimentary facies, and origin of multiple hydrothermal explosion deposits. New tephrochronology and radiocarbon results provide a four-dimensional view of recent geologic activity since recession at ca. 15–14.5 ka of the >1-km-thick Pinedale ice sheet. The sedimentary record in Yellowstone Lake contains multiple hydrothermal explosion deposits ranging in age from ca. 13 ka to ~1860 CE. Hydrothermal explosions require a sudden drop in pressure resulting in rapid expansion of high-temperature fluids causing fragmentation, ejection, and crater formation; explosions may be initiated by seismicity, faulting, deformation, or rapid lake-level changes. Fallout and transport of ejecta produces distinct facies of subaqueous hydrothermal explosion deposits. Yellowstone hydrothermal systems are characterized by alkaline-Cl and/or vapor-dominated fluids that, respectively, produce alteration dominated by silica-smectite-chlorite or by kaolinite. Alkaline-Cl liquids flash to steam during hydrothermal explosions, producing much more energetic events than simple vapor expansion in vapor-dominated systems. Two enormous explosion events in Yellowstone Lake were triggered quite differently: Elliott’s Crater explosion resulted from a major seismic event (8 ka) that ruptured an impervious hydrothermal dome, whereas the Mary Bay explosion (13 ka) was triggered by a sudden drop in lake level stimulated by a seismic event, tsunami, and outlet channel erosion.
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| 10. |
- OJAMAE, LARS, et al.
(author)
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THE OH STRETCHING FREQUENCY IN LIQUID WATER SIMULATIONS - THE CLASSICAL ERROR
- 1992
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In: Chemical Physics Letters. - : Elsevier BV. - 0009-2614 .- 1873-4448. ; 191:5, s. 500-506
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Journal article (peer-reviewed)abstract
- OH stretching frequencies of HDO molecules in liquid water have been calculated by molecular dynamics simulation and compared to quantum-corrected OH stretching frequencies. In the MD simulation the MCY intermolecular water-water potential was used together with an experimental intramolecular free water potential. The frequencies calculated classically by Fourier transformation of the velocity autocorrelation function are found to be almost-equal-to 300 cm-1 too high compared with experiment. Quantum corrections show that the classical error contribution to this discrepancy is almost-equal-to 140 cm-1. To reach full agreement with experiment also the potential model needs to be improved. It is suggested that in constructing flexible water potentials the goal should not be set for an MD-derived OH frequency in absolute agreement with experiment (at 3400 cm-1) but instead some 200 cm-1 higher.
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