143 research outputs found

    Kvedarkor

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    Bilag til oppgave: CD med lytteeksemplerUtforsking av stemmebruk, klang, teknikk og ornamentikk i folkesang i Nord-Norge. Formidling av folkemusikk/folkesang i kor via improvisasjon

    Design, kunst og håndverk i Norge : fra barnehage til PhD

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    Det norske utdanningsfeltet og faget formgiving, kunst og håndverk er betydelig endret siden forrige artikkelsamling om fagets stilling i de nordiske landene kom ut i 2008. I dag synes det å være en klar politisk vilje til å se hele løpet fra barnehage til PhD-nivå i sammenheng,og i denne artikkelen presenteres og drøftes derfor endringer og tendenser relatert til hele utdanningsløpet. Artikkelen er tredelt. I den første delen beskrives endringstendenser knyttet til nåsituasjonen i utdanningsfeltet, i den andre delen belyses tendenser vedrørende det kunst-og håndverksdidaktiske forskningsfeltet og i den siste delen drøftes endringstendenser i et videre utdanningspolitisk perspektiv. Her trekkes det frem paradokser og motsetninger i fagets utdanningspolitiske mandat mellom danning versus instrumenta-lisme, individfokus versus samfunnsrelevans og faglig bredde og dybde. Det etterlyses sterkere politisk vilje og handlekraft med henhold til å styrke kunst og håndverksfagene i hele utdanningsløpet. Forfatterne anvender en eklektisk og hermeneutisk tilnærming for å beskrive og tolke sentrale tendenser som kommer til syne i materialet. Tendensene drøftes til slutt i et kritisk perspektiv.publishedVersio

    Design of a novel flow-and-shoot microbeam

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    Presented here is a novel microbeam technology—the Flow-And-ShooT (FAST) microbeam—under development at RARAF. In this system, cells undergo controlled fluidic transport along a microfluidic channel intersecting the microbeam path. They are imaged and tracked in real-time, using a high-speed camera and dynamically targeted, using a magnetic Point and Shoot system. With the proposed FAST system, RARAF expects to reach a throughput of 100 000 cells per hour, which will allow increasing the throughput of experiments by at least one order of magnitude. The implementation of FAST will also allow the irradiation of non-adherent cells (e.g. lymphocytes), which is of great interest to many of the RARAF users. This study presents the design of a FAST microbeam and results of first tests of imaging and tracking as well as a discussion of the achievable throughput

    Make it NOW! – Learning, exploring and understanding

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    This issue of FormAkademisk features selected articles developed from papers presented at the Make it NOW! Learning, Exploring and Understanding conference in Rauma, Finland, September 28-30, 2016. This NordFo conference was organized by Rauma Unit of Turku University´s Department of Teacher Education. NordFo is a Nordic forum, supported by NordPlus, which since the 1980s has worked towards initiating, stimulating and reporting research and development work within the subject art and craft, textile work and woodwork and the teacher education in these subjects in the Nordic countries. The conference Make it NOW! aimed to “…provide an arena for discussions on craft, design and technology as an innovative combination of knowledge and skills related to eco-social values in altering the world according to human needs and wants” (International NordFo Conference in Rauma, 2016). This special issue of FormAkademisk called for articles with an emphasis on the theme Researching embodied making and learning – New methodological vistas on Making, however this did not exclude papers from other sessions. Additionally, this issue contains two other, independent articles that fit this special issue’s scope. </p

    Make it NOW! – Learning, Exploring and Understanding

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    This issue of FormAkademisk features selected articles developed from papers presented at the Make it NOW! Learning, Exploring and Understanding conference in Rauma, Finland, September 28-30, 2016. This NordFo conference was organized by Rauma Unit of Turku University´s Department of Teacher Education. NordFo is a Nordic forum, supported by NordPlus, which since the 1980s has worked towards initiating, stimulating and reporting research and development work within the subject art and craft, textile work and woodwork and the teacher education in these subjects in the Nordic countries. The conference Make it NOW! aimed to “…provide an arena for discussions on craft, design and technology as an innovative combination of knowledge and skills related to eco-social values in altering the world according to human needs and wants” (International NordFo Conference in Rauma, 2016). This special issue of FormAkademisk called for articles with an emphasis on the theme Researching embodied making and learning – New methodological vistas on Making, however this did not exclude papers from other sessions. Additionally, this issue contains two other, independent articles that fit this special issue’s scope

    207-nm UV Light—A Promising Tool for Safe Low-Cost Reduction of Surgical Site Infections. II: In-Vivo Safety Studies

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    Background UVC light generated by conventional germicidal lamps is a well-established anti-microbial modality, effective against both bacteria and viruses. However, it is a human health hazard, being both carcinogenic and cataractogenic. Earlier studies showed that single-wavelength far-UVC light (207 nm) generated by excimer lamps kills bacteria without apparent harm to human skin tissue in vitro. The biophysical explanation is that, due to its extremely short range in biological material, 207 nm UV light cannot penetrate the human stratum corneum (the outer dead-cell skin layer, thickness 5–20 μm) nor even the cytoplasm of individual human cells. By contrast, 207 nm UV light can penetrate bacteria and viruses because these cells are physically much smaller. Aims To test the biophysically-based hypothesis that 207 nm UV light is not cytotoxic to exposed mammalian skin in vivo. Methods Hairless mice were exposed to a bactericidal UV fluence of 157 mJ/cm2 delivered by a filtered Kr-Br excimer lamp producing monoenergetic 207-nm UV light, or delivered by a conventional 254-nm UV germicidal lamp. Sham irradiations constituted the negative control. Eight relevant cellular and molecular damage endpoints including epidermal hyperplasia, pre-mutagenic UV-associated DNA lesions, skin inflammation, and normal cell proliferation and differentiation were evaluated in mice dorsal skin harvested 48 h after UV exposure. Results While conventional germicidal UV (254 nm) exposure produced significant effects for all the studied skin damage endpoints, the same fluence of 207 nm UV light produced results that were not statistically distinguishable from the zero exposure controls. Conclusions As predicted by biophysical considerations and in agreement with earlier in vitro studies, 207-nm light does not appear to be significantly cytotoxic to mouse skin. These results suggest that excimer-based far-UVC light could potentially be used for its anti-microbial properties, but without the associated hazards to skin of conventional germicidal UV lamps

    Angle of Incidence Effects on Far-Field Positive and Negative Phase Blast Parameters

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    The blast overpressure acting on a rigid target is known to vary between the normally reflected overpressure and the incident overpressure as a function of the angle between the target and the direction of travel of the blast wave. Literature guidance for determining the exact effects of angle of incidence are unclear, particularly when considering the negative phase. This paper presents the results from a series of well controlled experiments where pressure transducers are used to record the pressure-time history acting on the face of a large, rigid target at various angles of incidence for varying sizes of hemispherical PE4 charge and stand-off distances. The test data demonstrated remarkable repeatability, and excellent agreement with semi-empirical predictions for normally reflected overpressures. The oblique results show that peak overpressure, impulse and duration are highly dependent on angle of incidence for the positive phase, and are invariant of angle of incidence for the negative phase

    Design and numerical assessment of a rapid-construction corrugated steel-concrete-steel protective structure

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    A protective structure should be sufficiently resilient to protect its occupants from the harmful effects of an impact or explosion. In many instances, protective structures are also required to be assembled quickly, and be cost-effective. Steel-concrete-steel (SCS) sandwich structures combine the benefits of steel; ductility and anti-scabbing, and concrete; energy absorption and rigidity. Despite these favourable characteristics, the performance of profiled-plate steel-concrete-steel structures under blast and impact loads has yet to be studied in detail. This article presents the results from a numerical study investigating the efficacy of a newly proposed profiled-plate arched steel-concrete-steel structure under the loading from an extremely near-field high explosive detonation. It is observed that as arch thickness (concrete infill depth) increases, a greater proportion of energy is absorbed through concrete crushing and a larger concrete mass is mobilised. It is shown that a 240 mm arch thickness is adequate to resist the blast load from a 5.76 kg TNT charge, therefore proving the suitability of the proposed protective structure
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