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| 2. |
- Del Missier, Fabio, et al.
(författare)
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Predictors of Decision Making Across the Adult Life-Span : An Individual-Differences Study
- 2016
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Age-related decline in complex cognitive tasks has been explained by changes in sensory functioning, processing speed, and working memory. However, there is still no agreement on the relative importance of these factors, and their relative role in decision making has not been investigated. In an individual-difference study on a population-based Swedish sample of adults (N = 563, age range 30-89), we disentangled the contribution of sensory decline, processing speed, and working memory measures to age-related changes in three cognitively-demanding decision-making tasks of the Adult Decision-Making Competence Battery (Resistance to Framing, Applying Decision Rules, Under/Overconfidence). Structural equation modeling showed that working memory is a significant predictor even when the influence of sensory variables, processing speed, and education (as a control for cohort effects) is taken into account. Moreover, the effects of sensory functioning and processing speed on decision making were mediated by working memory. These findings indicate that the age-related decline in complex decision-making tasks may not be entirely explained by changes in lower-level processes, highlighting the functional role of working memory processes.
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| 3. |
- Desforges, F. G., et al.
(författare)
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Analysis of Electron Injection in Laser Wakefield Acceleration Using Betatron Emission in Capillary Tubes
- 2015
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Ingår i: Laser Acceleration of Electrons, Protons, and Ions III; and Medical Applications of Laser-Generated Beams of Particles III. - : SPIE. - 1996-756X .- 0277-786X. ; 9514, s. 95140-95140
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Konferensbidrag (refereegranskat)abstract
- The dynamics of ionization-induced electron injection in the high density (similar to 1.2 x 10(19)cm(-3)) regime of Laser Wakefield Acceleration (LWFA) was investigated by analyzing betatron X-ray emission inside dielectric capillary tubes. A comparative study of the electron and betatron X-ray properties was performed for both self-injection and ionization-induced injection. Direct experimental evidence of early onset of ionization-induced injection into the plasma wave was obtained by mapping the X-ray emission zone inside the plasma. Particle-In-Cell (PIC) simulations showed that the early onset of ionization-induced injection, due to its lower trapping threshold, suppresses self-injection of electrons. An increase of X-ray fluence by at least a factor of two was observed in the case of ionization-induced injection due to an increased trapped charge compared to self-injection mechanism.
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| 7. |
- Lenk, Gabriel, et al.
(författare)
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Capillary driven and volume-metred blood-plasma separation
- 2015
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Ingår i: Proceedings 18 th IEEE Transducers. - : IEEE. - 9781479989553 ; , s. 335-338
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Konferensbidrag (refereegranskat)abstract
- Blood plasma samples are widely used in clinical analysis but easy-to-use sampling methods for defined volumes are lacking. We introduce the first capillary driven microfluidic device that separates a specific volume of plasma from a blood sample of unknown volume. The input to the device is a small amount of whole blood in the range of 30-60 μl which results in a 4 μl isolated plasma sample within 3 minutes, available for subsequent processing and/or analysis, as demonstrated by collecting the sample in a paper substrate.
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| 8. |
- Lindberg, Ola J., et al.
(författare)
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Developing awareness of digital competence and skills through dialogue – a methodological reflection
- 2017
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Ingår i: INTED2017: 11th International Technology, Education and Development Conference. - : IATED. - 9788461784912 ; , s. 5679-5686
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Konferensbidrag (refereegranskat)abstract
- Great expectations have been placed on information and communication technology (ICT) to change and improve education. In research and evaluations, the picture seems to be of expectations not yet realized. To be able to change practice in the area of ICT in education, one key issue often put forward is teachers’ professional development (TPD). This paper investigates an alternative way of stimulating TPD in the area of ICT in education by building on ideas of formative intervention. The aim of this paper is to present an interview model used in a research project as a tool to develop awareness of digital competence and skills among upper secondary school teachers and discuss this as a model for TPD in the area of ICT. Furthermore, the aim is to present early results from an analysis of teacher interviews using the model and discuss the limitations and possible strengths of this model in relation to other models of formative intervention research and change in practice.
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