| 1. |
- Aaboen, Lise, et al.
(författare)
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Corporate governance and performance of small high-tech firms in Sweden
- 2006
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Ingår i: Technovation. - : Elsevier BV. - 0166-4972 .- 1879-2383. ; 26:8, s. 955-968
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Tidskriftsartikel (refereegranskat)abstract
- The approach uses data from a sample of 183 small high-tech firms, new, technology-based firms (small high-tech firms) in Sweden (54 variables under the headings of work experience, board and advice, financing, motivation-performance priorities, technological innovation and strategy). This study identifies some core areas of importance in corporate governance. Few managers in this study had a strong background and experience of finance and the preparation of business. Only 64 per cent of the managers have had previous work experience before starting the firm. The survey makes it clear that the small high-tech firms are likely to have a strong link with banking institutions. The consequence of these links is that most of the firm's capital supply is from banks, and that there are strong ownership links between banks and industry. The background of the founder does seem to have had an effect on the problem of financing and ownership issues. It is private sector organizations (banks) and families that are most frequently consulted by small high-tech firms (However, low means). It is also the private and public sector organizations, in connection with external board membership, regional development agencies and banks that are most frequently consulted. In the future, it is reasonable to search for factor patterns that can begin to explain and predict the direction of corporate governance in small new technology-based firms.
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| 2. |
- Achterberg, A., et al.
(författare)
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First Year Performance of the IceCube Neutrino Telescope
- 2006
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Ingår i: Astroparticle physics. - : Elsevier BV. - 0927-6505 .- 1873-2852. ; 26:3, s. 155-173
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Tidskriftsartikel (refereegranskat)abstract
- The first sensors of the IceCube neutrino observatory were deployed at the South Pole during the austral summer of 2004-2005 and have been producing data since February 2005. One string of 60 sensors buried in the ice and a surface array of eight ice Cherenkov tanks took data until December 2005 when deployment of the next set of strings and tanks began. We have analyzed these data, demonstrating that the performance of the system meets or exceeds design requirements. Times are determined across the whole array to a relative precision of better than 3 ns, allowing reconstruction of muon tracks and light bursts in the ice, of air-showers in the surface array and of events seen in coincidence by surface and deep-ice detectors separated by up to 2.5 km.
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| 3. |
- Achterberg, A., et al.
(författare)
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Limits on the high-energy gamma and neutrino fluxes from the SGR 1806-20 giant flare of 27 December 2004 with the AMANDA-II detector
- 2006
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Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 97:22, s. 221101-
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Tidskriftsartikel (refereegranskat)abstract
- On 27 December 2004, a giant gamma flare from the Soft Gamma-Ray Repeater 1806-20 saturated many satellite gamma-ray detectors, being the brightest transient event ever observed in the Galaxy. AMANDA-II was used to search for down-going muons indicative of high-energy gammas and/or neutrinos from this object. The data revealed no significant signal, so upper limits (at 90% C.L.) on the normalization constant were set: 0.05(0.5) TeV-1 m(-2) s(-1) for gamma=-1.47 (-2) in the gamma flux and 0.4(6.1) TeV-1 m(-2) s(-1) for gamma=-1.47 (-2) in the high-energy neutrino flux.
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| 4. |
- Achterberg, A., et al.
(författare)
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Limits on the Muon Flux from Neutralino Annihilations at the Center of the Earth with AMANDA
- 2006
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Ingår i: Astroparticle physics. - : Elsevier BV. - 0927-6505 .- 1873-2852. ; 26:2, s. 129-139
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Tidskriftsartikel (refereegranskat)abstract
- A search has been performed for nearly vertically upgoing neutrino-induced muons with the Antarctic Muon And Neutrino Detector Array (AMANDA), using data taken over the three year period 1997-99. No excess above the expected atmospheric neutrino background has been found. Upper limits at 90% confidence level have been set on the annihilation rate of neutralinos at the center of the Earth, as well as on the muon flux at AMANDA induced by neutrinos created by the annihilation products.
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| 5. |
- Achterberg, A., et al.
(författare)
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On the selection of AGN neutrino source candidates for a source stacking analysis with neutrino telescopes
- 2006
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Ingår i: Astroparticle physics. - : Elsevier BV. - 0927-6505 .- 1873-2852. ; 26:4-5, s. 282-300
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Tidskriftsartikel (refereegranskat)abstract
- The sensitivity of a search for sources of TeV neutrinos can be improved by grouping potential sources together into generic classes in a procedure that is known as source stacking. In this paper, we define catalogs of Active Galactic Nuclei (AGN) and use them to perform a source stacking analysis. The grouping of AGN into classes is done in two steps: first, AGN classes are defined, then, sources to be stacked are selected assuming that a potential neutrino flux is linearly correlated with the photon luminosity in a certain energy band (radio, IR, optical, keV, GeV, TeV). Lacking any secure detailed knowledge on neutrino production in AGN, this correlation is motivated by hadronic AGN models, as briefly reviewed in this paper.The source stacking search for neutrinos from generic AGN classes is illustrated using the data collected by the AMANDA-II highenergy neutrino detector during the year 2000. No significant excess for any of the suggested groups was found.
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| 6. |
- Ackesjö, Helena, 1973-
(författare)
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Det är ju ingenting vi bett om... : En studie av en integrationsprocess mellan förskoleklass och skola, med fokus på personal i förändring
- 2006
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Det övergripande syftet med rapporten är att följa en integration mellan förskoleklass och grundskola på en enhet under ett läsår. Undersökningen fokuseras på lärarnas och skolledningens uppfattningar om verksamheten i samband med förändringsprocessen både före, under och efter den fysiska integrationen. Tyngdpunkten läggs på att se vad olika grupper och kulturer samt läraryrkenas historiska och traditionella bakgrund spelar för roll i deras uppfattningar. I undersökningen har aktionsforskning använts. Metoden är tillåtande för triangulering, och vid datainsamlingen har samtal, observation/dagbok samt enkäter använts. Resultaten visar att förändringprocessen påverkades av att grundskollärarna så småningom underordnade sig samverkansreformen. Förskollärarna däremot balkaniserade sig och skapade ett friutrymme. Förändringsprocessen påverkades därför av en tyst maktkamp mellan lärarna, avseende inbördes traditionell och historisk rangordning, samt en kamp om pedagogiska metoder. Genom att underordna sig tog grundskollärarna makten över samverkan. Ingen spontan samverkan etablerades under det första verksamhetsåret.
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| 7. |
- Adamopoulos, Stergios
(författare)
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Fiber analysis techniques for sustainable manufacturing of corrugated board and packaging
- 2006
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Ingår i: Proceedings of the 2006 Naxos International Conference on Sustainable Management and Development of Mountainous and Island Areas. - : Democritus University of Thrace. - 9608934508 - 9789608934504 ; , s. 1-9
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Konferensbidrag (refereegranskat)abstract
- Environmental – economic pressure and associated regulations have led to a significant increase of recycled paper as the main fibrous component of corrugated board the last years. Corrugating packaging industry is facing the challenge to enhance products derived from recycled pulp and to ensure a satisfactory strength of packages. Advanced techniques are highly needed for the evaluation of packaging fiber supply sources as well as for the utilization of the available resources in an optimal manner. As industrial packaging is based on the characteristics of its constituent fibers, information on the fiber composition of the recycled raw materials is of primary importance for a continual control of fiber sources. This paper reports on the usefulness of fiber analysis techniques as diagnostic methods for assessing the potential quality distribution of fibers for sustainable packaging manufacturing.
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| 8. |
- Adamopoulos, Stergios, et al.
(författare)
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Fiber composition of packaging grade papers as determined by the Graff “C” staining test
- 2006
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Ingår i: Wood and Fiber Science. - : Society of Wood Science and Technology. - 0735-6161. ; 38:4, s. 567-575
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Tidskriftsartikel (refereegranskat)abstract
- A qualitative and quantitative analysis of the fiber components of 15 representative papers that are used for the production of corrugated board was carried out by the Graff "C" staining test. The method of processing of softwood, hardwood, and nonwood fibers was determined under a light microscope by their color reactions with the stain. All papers, due to the use of recycled pulp raw materials in their manufacturing, were found to incorporate in their furnish fibers that had been produced with a variety of pulping processes: chemical, mechanical, and semi-mechanical. The recycled-based papers (recycled-liner and recycled-medium) were proved to be the most variable comprising 12-15 different fiber components, while in some of the semi-chemicals only up to 7 components were identified. The weight percentages of the fiber components calculated by the application of weight factors showed that in almost all papers the most important fiber component from a quantitative standpoint was hardwood unbleached kraft followed by softwood unbleached kraft. Besides hardwood unbleached semi-chemical pulp and mechanical softwood pulp that were also plentiful in the papers, there was a smaller number of other components which sum, however, accounted for a significant fraction in the total furnish weight. The results taken on the total softwood, hardwood, and nonwood fibers content of the papers demonstrate that Graff "C" staining test is adequate to analyze both the structure and quality of packaging grade papers in practical industrial testing.
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| 9. |
- Adamopoulos, Stergios
(författare)
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Identification of Fibre Components in Packaging Grade Papers
- 2006
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Ingår i: IAWA Journal. - : Brill Academic Publishers. - 0928-1541 .- 2294-1932. ; 27:2, s. 153-172
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Tidskriftsartikel (refereegranskat)abstract
- Environmental and economic issues have led to a significant increase of recycled paper as the main fibrous component of corrugated board the last years. Qualitative data on the different fibre types are needed for the evaluation of packaging fibre supply sources, which are becoming numerous and heterogeneous. Fifteen different packaging grade papers (7 linerboards and 8 corrugating medium) were selected to represent all the variety of papers available on the Spanish market. The origin of virgin and recycled fibres was identified by their morphological characteristics employing light microscopy and standard fibre analysis techniques. The waste-based papers (Waste based-liners and Fluting), Kraft-liners and Test-liner were highly variable containing 9–18 different wood and nonwood components. Semi-chemical, with 5–13 components, was the less variable grade. Hardwoods were identified as the most important fibre component from a quantitative standpoint. All papers contained in their hardwood mix Betula, Eucalyptus and Populus in significant amounts. Fagus sylvatica and Tilia were also frequently observed and in some papers were amongst major hardwood components. Prominent softwood components were found to be Pinus sylvestris, P. pinaster, P. radiata, Picea, Larix and in some papers Pinus nigra. The lower presence of a variety of softwood, hardwood and nonwood (mainly grasses) species and genera was due to the paper recycling process.
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| 10. |
- Adamopoulos, Stergios, et al.
(författare)
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Qualitative and quantitative fibre analysis in recycled raw materials for packaging
- 2006
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Ingår i: Forest Products Journal. - : Forest Products Society. - 0015-7473. ; 56:2, s. 58-60
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Tidskriftsartikel (refereegranskat)abstract
- Understanding the influence that heterogeneous recycled raw materials have on packaging-grade paper performance offers great potential value to the corrugated board and packaging industry. Fifty-seven linerboards and corrugating medium were selected to represent all the variety of paper grades available on the Spanish market at the moment for the production of corrugated board. The origin of softwood, hardwood, and nonwood fibers and their percentages by weight were determined with light microscopy and standard fiber analysis techniques.
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