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Sökning: LAR1:uu > Södertörns högskola > (2005-2009)

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  • Agianian, Bogos, et al. (författare)
  • Preliminary characterization of hemolymph coagulation in Anopheles gambiae larvae
  • 2007
  • Ingår i: Developmental and Comparative Immunology. - : Elsevier BV. - 0145-305X .- 1879-0089. ; 31:9, s. 879-888
  • Tidskriftsartikel (refereegranskat)abstract
    • Hemolymph coagulation is a first response to injury, impeding infection, and ending bleeding. Little is known about its molecular basis in insects, but clotting factors have been identified in the fruit fly Drosophila melanogaster. Here, we have begun to study coagulation in the aquatic larvae of the malaria vector mosquito Anopheles gambiae using methods developed for Drosophila. A delicate clot was seen by light microscopy, and pullout and proteomic analysis identified phenoloxidase and apolipophorin-I as major candidate clotting factors. Electron microscopic analysis confirmed clot formation and revealed it contains fine molecular sheets, most likely a result of lipophorin assembly. Phenoloxidase appears to be more critical in clot formation in Anopheles than in Drosophila. The Anopheles larval clot thus differs in formation, structure, and composition from the clot in Drosophila, confirming the need to study coagulation in different insect species to learn more about its evolution and adaptation to different lifestyles.
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  • Ahlbäck Öberg, Shirin, 1964-, et al. (författare)
  • The Influence of National Parliaments over Domestic European Union Policies
  • 2009
  • Ingår i: Scandinavian Political Studies. - : Wiley-Blackwell. - 0080-6757 .- 1467-9477. ; 32:4, s. 359-381
  • Tidskriftsartikel (refereegranskat)abstract
    • In this article we present survey results on the Swedish and Finnish parliamentarians' perceived influence over domestic decision-making in EU-matters. In the literature the parliaments in Sweden and Finland are classified as powerful parliaments that can exert considerable influence in the domestic EU policy-making. Moreover, Finland and Sweden joined the EU at the same time. Therefore the overall expectation is that the parliaments should be equally powerful. However, the results from our survey indicate a significant difference in perceived influence between the two parliaments. It is obvious that the Swedish parliamentarians perceive themselves as more marginalized in relation to the Government than the Finnish parliamentarians. After having tried different explanations we conclude that the differences can be ascribed to the parliaments' different organisational set-ups for the oversight of the Government.
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  • Arketeg, Åsa, 1973- (författare)
  • An aesthetics of resistance : the open-ended practice of language writing
  • 2007
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • This dissertation investigates the relation between poetry and theory in the poetic practice of language writing. The topic is approached from the idea that language writing takes place in the tension of an open-ended state. In Chapter 1 it is argued that language writing is constituted in relation to a poetic context, and that it reactivates traits intrinsic to the avant-garde discourse, which corresponds to some characteristics in poststructuralism and critical theory. These perspectives appear in the poetic practice of language writing in terms of a rejection of transparency and separation. The stress on construction in language and writing eliminates the distinction between theory and poetry. It is argued that language writing cannot be seen as a movement in the traditional sense of the word since the poetic work resists aesthetic coherence. The heterogeneity of language writing confirms theory's contribution to the poetic practice but without creating a separation between the two. The first section of Chapter 2 addresses the l=a=n=g=u=a=g=e journal with a focus on a poetological context, avant-garde discourse, theory and criticism. The texts in this journal activate the open-ended state by acknowledging context and theory while they simultaneously reject the conventional style of the essay or the review. In the second section of this chapter, in the analysis of four language writers, Bruce Andrews, Charles Bernstein, Lyn Hejinian and Ron Silliman, it is argued that their poetic practice eliminates the distinction between poetry and poetics since poetry emerges as a critical study in itself, where self-reflexivity prevents the creation of poetry in a conventional sense and prevents a separation from poetics. Although poetry is connected with society, the autonomy of poetry, form and poetic language is stressed as a critical, transgressive potential in relation to conventional distinctions between poetry, theory, poetics and criticism.
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7.
  • Arnqvist, Lisa, 1970-, et al. (författare)
  • Overexpression of CYP710A1 and CYP710A4 in transgenic Arabidopsis plants increases the level of stigmasterol at the expense of sitosterol
  • 2008
  • Ingår i: Planta. - : Springer Science and Business Media LLC. - 0032-0935 .- 1432-2048. ; 227:2, s. 309-317
  • Tidskriftsartikel (refereegranskat)abstract
    • Sitosterol and stigmasterol are major sterols in vascular plants. An altered stigmasterol:sitosterol ratio has been proposed to influence the properties of cell membranes, particularly in relation to various stresses, but biosynthesis of stigmasterol is poorly understood. Recently, however, Morikawa et al. (Plant Cell 18:1008–1022, 2006) showed in Arabidopsis thaliana that synthesis of stigmasterol and brassicasterol is catalyzed by two separate sterol C-22 desaturases, encoded by the genes CYP710A1 and CYP710A2, respectively. The proteins belong to a small cytochrome P450 subfamily having four members, denoted by CYP710A1-A4, and are related to the yeast sterol C-22 desaturase Erg5p acting in ergosterol synthesis. Here, we report on our parallel investigation of the Arabidopsis CYP710A family. To elucidate the function of CYP710A proteins, transgenic Arabidopsis plants were generated overexpressing CYP710A1 and CYP710A4. Compared to wild-type plants, both types of transformant displayed a normal phenotype, but contained increased levels of free stigmasterol and a concomitant decrease in the level of free sitosterol. CYP710A1 transformants also displayed higher levels of esterified forms of stigmasterol, cholesterol, 24-methylcholesterol and isofucosterol. The results confirm the findings of Morikawa et al. (Plant Cell 18:1008–1022, 2006) regarding the function of CYP710A1 in stigmasterol synthesis, and show that CYP710A4 also has this capacity. Furthermore, our results suggest that an increased stigmasterol level alone is sufficient to stimulate esterification of other major sterols.
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8.
  • Axelsson, Erik (författare)
  • Historien i politiken : Historieanvändning i norsk och svensk EU-debatt 1990-1994
  • 2006
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • In this dissertation the use of history in public debate in Norway and Sweden in relation to membership in the European Union (EU) 1990–1994 is examined. The purpose is to contribute with new knowledge about the relationship between politics and writing history, as well as describe the role of history in national and other identities. The analysis is both quantitative and qualitative. Historical narratives are re-constructed from the history used by the political figures when they argued for or against EU membership. The narratives relate to the political subjects which were in the limelight in connection with the question of EU, as well as preconceptions about Norwegian, Swedish and European identity. The dissertation shows that history is a multifaceted rhetorical tool in the political debate. In Sweden it was the policy of national security which was debated from a historical perspective. In it the debaters also used several examples from European history. In Norway, history entered the debate in connection with issues relating to sovereignty and democracy. In comparison with the Swedish EU debate, European history was drawn on less in Norway. Historical narratives of identity appearing in the EU debate show structural similarities, but at the same time differ in significant aspects. In a comparison the Norwegian national narrative seems unequivocal and well defined. It is retrospective due to its main component being the development of democracy in 19th century Norway. The Swedish national narrative is very clearly based on a notion of progress and continuous development, both as regards economy and democracy, and it is the history of the 20th century which stands in focus. In Sweden the constructions of the past separated according to party political lines, and the content of the national narrative was very much subject to debate.
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  • Bali Swain, Ranjula, et al. (författare)
  • Does microfinance empower women? : Evidence from self-help groups in India
  • 2009
  • Ingår i: International review of applied economics. - : Taylor&Francis Group. - 0269-2171 .- 1465-3486. ; 23:5, s. 541-556
  • Tidskriftsartikel (refereegranskat)abstract
    • Microfinance programmes like the Self Help Bank Linkage Program in India have been increasingly promoted for their positive economic impact and the belief that they empower women. However, only a few studies rigorously examine the link between microfinance and women's empowerment. This article contributes to this discussion by arguing that women's empowerment takes place when women challenge the existing social norms and culture, to effectively improve their well-being. It empirically validates this hypothesis by using quasi-experimental household sample data collected for five states in India for 2000 and 2003. A general model is estimated by employing appropriate techniques to treat the ordinal variables in order to estimate the impact of the Self Help Group (SHG) on women's empowerment for 2000 and 2003. The results strongly demonstrate that on average, there is a significant increase in the empowerment of women in the SHG members group. No such significant change is observed however, for the members of the control group. The elegance of the result lies in the fact that the group of SHG participants show clear evidence of a significant and higher empowerment, while allowing for the possibility that some members might have been more empowered than others.
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