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- Andersson, Svante
(författare)
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High-growth firms in the Swedish ERP industry
- 2003
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Ingår i: Journal of Small Business and Enterprise Development. - Bingley, UK : Emerald Group Publishing Limited. - 1462-6004 .- 1758-7840. ; 10:2, s. 180-193
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Tidskriftsartikel (refereegranskat)abstract
- This paper analyses growth patterns in three high-growth Swedish firms (Intentia, IBS, and in the enterprise resource planning (ERP) industry. A multi-theoretical framework is developed and used to analyse the firms' growth. It is concluded that growth is a complex phenomenon that has to be viewed from different theoretical angles to be understood. It is shown that entrepreneurs' intentions, international growth strategies, organic organisations, industry structure and networks, and national cultures are all factors that influence firms' growth.
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| 3. |
- Andersson, Svante, et al.
(författare)
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Innovative Internationalisation in New firms : Born Globals–the Swedish Case
- 2003
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Ingår i: Journal of International Entrepreneurship. - Berlin : Springer Berlin/Heidelberg. - 1570-7385 .- 1573-7349. ; 1:3, s. 249-275
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Tidskriftsartikel (refereegranskat)abstract
- During the past few years, the phenomenon of Born Globals has been highlighted in many studies. Such firms adopt a global approach right from their inception or very shortly thereafter. This behaviour challenges the traditional internationalisation models of slow and gradual development with respect to geographical markets and market entry modes. In this paper a conceptual framework is developed from earlier research and includes the factors: globalisation, entrepreneurs, networks, and industry. A survey showed that Born Globals were still very uncommon in Sweden. However, four Born Global firms were identified and analysed with the framework. It was concluded that the ongoing globalisation has made it easier to conduct Born Global strategies. However, active entrepreneurs, who recognised the global opportunities, were crucial for the implementation of these strategies, in which personal networks were used as tools.
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| 7. |
- Aronsson, Henrik, et al.
(författare)
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POR hits the road : import and assembly of a plastid protein
- 2003
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Ingår i: Plant Molecular Biology. - Berlin : Springer-Verlag. - 0167-4412 .- 1573-5028. ; 51:1, s. 1-7
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Tidskriftsartikel (refereegranskat)abstract
- The biosynthesis of chlorophyll is a strictly light-dependent multistep process in higher plants. The light-dependent step is catalysed by NADPH:protochlorophyllide oxidoreductase (POR, EC.1.6.99.1), which reduces protochlorophyllide (Pchlide) to chlorophyllide (Chlide). POR is nucleus-encoded and post-translationally imported into plastids. It has been proposed that the import of a POR protein isozyme (PORA) is totally dependent on Pchlide and uses a novel import pathway. This proposal is based on findings that PORA import only occurs in the presence of Pchlide and that the presence of overexpressed precursor of Rubisco small subunit (pSS), a protein which is known to use the general import pathway, does not outcompete PORA import. Another study demonstrated that POR precursor protein (pPOR) can be cross-linked to one of the components in the translocation machinery, Toc75, in the absence of Pchlide, and that its import can be outcompeted by the addition of the pSS. This indicates that pSS and pPOR may use the same translocation mechanism. Thus, POR does not necessarily need Pchlide for import – which is in contrast to earlier observations – and the exact POR import mechanism remains unresolved. Once in the stroma, the POR transit peptide is cleaved off and the mature POR protein is associated to the plastid inner membranes. Formation of the correct membrane–associated, thermolysin-protected assembly is strictly dependent of NADPH. As a final step, the formation of the NADPH-Pchlide-POR complex occurs. When POR accumulates in the membranes of proplastids, an attraction of monogalactosyl diacylglycerol (MGDG) can occur, leading to the formation of prolamellar bodies (PLBs) and the development of etioplasts in darkness.
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| 8. |
- Aronsson, Henrik, et al.
(författare)
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POR – import and membrane association of a key element in chloroplast development
- 2003
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Ingår i: Physiologia Plantarum. - : Blackwell Publishing. - 0031-9317 .- 1399-3054. ; 118:1, s. 1-9
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Tidskriftsartikel (refereegranskat)abstract
- The development of proplastids or etioplasts to chloroplast is visualized by the accumulation of chlorophyll in leaves of higher plants. The biosynthesis of chlorophyll includes a light-dependent reduction of protochlorophyllide (Pchlide) to chlorophyllide (Chlide). This light-dependent step is catalysed by the nucleus-encoded NADPH:Pchlide oxidoreductase (POR, EC 1.6.99.1). POR is active within plastids and therefore has to be translocated over the plastid envelope membranes. The import of chloroplast proteins seems to follow a general import pathway using translocons at the outer and inner envelope membrane. POR cross-linking to Toc75, one of the major translocon components at the outer envelope membrane, indicates its use of the general import pathway. However, since variations exist within the so-called general import pathway one has to consider previous data suggesting a novel totally Pchlide-dependent import pathway of one POR isoform, PORA. The suggested Pchlide dependency of POR import is discussed since recent observations contradict this idea. In the stroma the POR transit peptide is cleaved off and the mature POR protein is targeted to the plastid inner membranes. The correct and stable association of POR to the membrane requires the cofactor NADPH. Functional activity of POR calls for formation of an NADPH–Pchlide–POR complex, a formation that probably takes place after the membrane association and is dependent on a phosphorylation reaction.
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| 9. |
- Atteia, A., et al.
(författare)
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Structure, organization and expression of the genes encoding mitochondrial cytochrome c1 and the Rieske iron-sulfur protein in Chlamydomonas reinhardtii
- 2003
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Ingår i: Molecular Genetics and Genomics. - : Springer Verlag. - 1617-4615 .- 1617-4623. ; 268:5, s. 637-644
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Tidskriftsartikel (refereegranskat)abstract
- The sequence and organization of the Chlamydomonas reinhardtii genes encoding cytochrome c 1 ( Cyc1) and the Rieske-type iron-sulfur protein ( Isp), two key nucleus-encoded subunits of the mitochondrial cytochrome bc 1 complex, are presented. Southern hybridization analysis indicates that both Cyc1 and Isp are present as single-copy genes in C. reinhardtii. The Cyc1 gene spans 6404 bp and contains six introns, ranging from 178 to 1134 bp in size. The Isp gene spans 1238 bp and contains four smaller introns, ranging in length from 83 to 167 bp. In both genes, the intron/exon junctions follow the GT/AG rule. Internal conserved sequences were identified in only some of the introns in the Cyc1 gene. The levels of expression of Isp and Cyc1 genes are comparable in wild-type C. reinhardtii cells and in a mutant strain carrying a deletion in the mitochondrial gene for cytochrome b (dum-1). Nevertheless, no accumulation of the nucleus-encoded cytochrome c 1 or of core proteins I and II was observed in the membranes of the respiratory mutant. These data show that, in the green alga C. reinhardtii, the subunits of the cytochrome bc1 complex fail to assemble properly in the absence of cytochrome b.
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- Baerveldt, Albert-Jan, et al.
(författare)
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Vision-guided mobile robots for design competitions
- 2003
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Ingår i: IEEE robotics & automation magazine. - : IEEE, The Institute of Electrical and Electronics Engineers. - 1070-9932 .- 1558-223X. ; 10:2, s. 38-44
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Tidskriftsartikel (refereegranskat)abstract
- The use of popular and effective robot-design competitions in teaching system integration in engineering curricula was discussed. Such robot competitions give students open-ended problem spaces, teaches them to work in groups and stimulates creativity. The technical and pedagogical aspects of robot competitions along with their experiences and shortcomings were also discussed.
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