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- Jahnke, Isa, et al.
(författare)
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Understanding, reflecting and designing learning spaces of tomorrow
- 2012
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Ingår i: Proceedings of IADIS Mobile Learning 2012. - : IADIS Press. - 9789728939663 ; , s. 147-156
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Konferensbidrag (refereegranskat)abstract
- This conceptual paper describes challenges in the field of Interactive Media and Learning (IML), striving towards a research and teaching field for mobile learning. The theoretical background is provided and arguments are listed, specifically what challenges researchers, practitioners (e.g., teachers, employers, employees) and designers face today on the way to mobile learning. This will be done from an educational perspective, in particular from Educational Technology from a Scandinavian community. The leading issue is how to educate the Homo Interneticus? Is learning supported by mobile devices one option? Is there a need to rethink the learning spaces of today? The paper provides answers by illustrating challenges in research and teaching with regard to mobile learning.
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| 2. |
- Olsson, Katarina, et al.
(författare)
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Kvinnan i styrelserummet
- 2011
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Ingår i: Festskrift till Boel Flodgren. ; , s. 343-360
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 3. |
- Berggren, Cathrine, et al.
(författare)
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Att utvärdera och använda resultaten – vilka avtryck ger bibliotekens utvärderingar i samhället?
- 2013
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Konferensbidrag (populärvet., debatt m.m.)abstract
- Det har blivit allt viktigare för biblioteken att kunna visa på sin betydelse i samhället. Mätetal och utvärderingar är nödvändiga instrument för att kunna jämföra satsningar på biblioteken med satsningar på andra områden. Men finns det en synergi mellan mätetalen och verksamhetens planer och mål? Hur mäter vi måluppfyllese i biblioteksverksamheten? Finns det kvalitetsindikatorer som vi har gemensamma oavsett bibliotekstyp? Hur kan biblioteksstatistiken användas? Vad gör bibliotekens utvärderingar för avtryck i beslutsprocessen? Vad gör bibliotekens utvärderingar för avtryck i samhället?För att svara på frågorna ovan har expertgruppen påbörjat ett arbete med att kartlägga hur svenska bibliotek arbetar med utvärdering. I det arbetet har vi bland annat sett vikten av ett gemensamt språk mellan bibliotekstyperna i arbetet med utvärderingar och kvalitetsutveckling. Gruppen kommer att under år 2014 publicera ett utvärderingsverktyg för bibliotek. Där kan bibliotek finna vägledning och stöd i valet av utvärderingsmetod, i genomförandet och i nyttjandet av utvärderingars resultat i syfte att utveckla och synliggöra biblioteksverksamheten.I det här papret presenterar vi syftet med vårt arbete och den metod vi har använt samt mer ingående berättar om hur vi har tänkt kring det verktyg som vi i slutet av papret ger en beskrivning av – ett verktyg som går under namnet "Utvärderingshjälpen".Vid konferensen kommer vi att presentera hur en årscykel kan se ut vid ett bibliotek som väljer att använda sig av utvärderingsarbete och systematiskt kvalitetsutveckling i nära relation till måluppfyllelse och till dialog med beslutsfattare samt omgivande samhälle. Vi presenterar också hur "Utvärderingshjälpen" skall kunna användas som stöd i det arbetet.
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| 5. |
- Carlsson, Nils, 1978, et al.
(författare)
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Enzymes Immobilized in Mesoporous Silica: a Physical-Chemical Perspective
- 2014
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Ingår i: Advances in Colloid and Interface Science. - : Elsevier BV. - 0001-8686. ; 205, s. 339-360
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Forskningsöversikt (refereegranskat)abstract
- Mesoporous materials as support for immobilized enzymes have been explored extensively during the last two decades, primarily not only for biocatalysis applications, but also for biosensing, biofuels and enzyme-controlled drug delivery. The activity of the immobilized enzymes inside the pores is often different compared to that of the free enzymes, and an important challenge is to understand how the immobilization affects the enzymes in order to design immobilization conditions that lead to optimal enzyme activity. This review summarizes methods that can be used to understand how material properties can be linked to changes in enzyme activity. Real-time monitoring of the immobilization process and techniques that demonstrate that the enzymes are located inside the pores is discussed by contrasting them to the common practice of indirectly measuring the depletion of the protein concentration or enzyme activity in the surrounding bulk phase. We propose that pore filling (pore volume fraction occupied by proteins) is the best standard for comparing the amount of immobilized enzymes at themolecular level, and present equations to calculate pore filling from the more commonly reported immobilized mass. Methods to detect changes in enzyme structure upon immobilization and to study the microenvironment inside the pores are discussed in detail. Combining the knowledge generated from these methodologies should aid in rationally designing biocatalyst based on enzymes immobilized in mesoporous materials.
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| 6. |
- Cheng, J., et al.
(författare)
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One-pot synthesis of porous gold nanoparticles by preparation of Ag/Au nanoparticles followed by dealloying
- 2013
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Ingår i: Colloids and Surfaces A: Physicochemical and Engineering Aspects. - : Elsevier BV. - 1873-4359 .- 0927-7757. ; 436, s. 823-829
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Tidskriftsartikel (refereegranskat)abstract
- Porous gold nanoparticles were obtained from nanoparticle alloys of gold and silver. The alloy nanoparticles were prepared by reducing the gold and silver precursors, HAuCl4 and AgNO3, respectively with NaBH4. The reduction was made in a microemulsion of water-in-oil type and the precursors were contained in the water droplets. The droplet size of the microemulsion was 25-30 nm and the size of the mixed nanoparticles was 5-7 nm. The position of the plasmon band in the absorption spectrum, as well as analysis by energy-dispersive X-ray spectroscopy linked to high resolution scanning transmission electron microscopy showed that the nanoparticles were true alloys, not of core-shell type. The mixed nanoparticles were subsequently dealloyed by treatment with nitric acid, which dissolved silver much more readily than gold.
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| 8. |
- Dobrydnjov, Igor, et al.
(författare)
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Intraarticular vs. extraarticular ropivacaine infusion following high-dose local infiltration analgesia after total knee arthroplasty : a randomized double-blind study
- 2011
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Ingår i: Acta Orthopaedica. - Oxfordshire : Medical Journals Sweden AB. - 1745-3674 .- 1745-3682. ; 82:6, s. 692-698
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Tidskriftsartikel (refereegranskat)abstract
- Background and purpose Ropivacaine infusion following high-volume local infiltration analgesia has been shown to be effective after total knee arthroplasty, but the optimum site of administration of ropivacaine has not been evaluated. We compared the effects of intraarticular and extraarticular adminstration of the local anesthetic for postoperative supplementation of high-volume local infiltration analgesia.Patients and methods In this double-blind study, 36 rheumatic patients aged 51–78 years with physical status ASA 2–3 who were scheduled for total knee arthroplasty were randomized into 2 groups. All patients received wound infiltration at the end of surgery with 300 mg ropivacaine, 30 mg ketorolac, and 0.5 mg epinephrine (total volume 156 mL). A tunneled catheter was randomly placed either extraarticularly or intraarticularly. Continuous infusion of ropivacain (0.5%, 2 mL/h) was started immediately and was maintained during the next 48 h. Pain intensity at rest, on movement, and with mobilization was estimated by the patients and the physiotherapist; rescue morphine consumption was recorded.Results As estimated by the patients, ropivacaine administered intraarticularly did not improve analgesia relative to extraarticular infusion, but improved the first mobilization. The incidence of high intensity of pain (VAS 7–10) was less in the group with intraarticular infusion. Analgesic requirements were similar in the 2 groups (47 mg and 49 mg morphine). No complications of postoperative wound healing were seen and there were no toxic side effects.Interpretation Continuous infusion of ropivacaine intraarticulary did not improve postoperative analgesia at rest relative to extraarticular administration, but it appeared to reduce the incidence of high pain intensity during first exercises, and could therefore be expected to improve mobilization up to 24 h after total knee arthroplasty.
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