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  • 1501.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Citizen Participation in European Politics1999Collection (editor) (Other academic)
  • 1502.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Cosmopolitan democratic theory and legitimate founding of political community: why Turkey has a right to participate in the politics of EU enlargement2011In: European democracy and cosmopolitan democracy / [ed] Daniele Archibugi and Guido Montani, Ventotene: Altiero Spinelli Institute for Federalist Studies , 2011Chapter in book (Other academic)
  • 1503.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Democracy Reconsidered: Britain, France, Sweden, and the EU2004Doctoral thesis, monograph (Other academic)
    Abstract [en]

    The purpose of this thesis is to investigate whether some positions in democratic theory should be adjusted or abandoned in view of internationalisation; and if adjusted, how. More specifically it pursues three different aims: to evaluate various attempts to explain levels of democracy as consequences of internationalisation; to investigate whether the taking into account of internationalisation reveals any reason to reconsider what democracy is or means; and to suggest normative interpretations that cohere with the adjustments of conceptual and explanatory democratic theory made in the course of meeting the other two aims.

    When empirical methods are used, the scope of the study is restricted to West European parliamentary democracies and their international affairs. More particularly, the focus is on the making of budget policy in Britain, France, and Sweden after the Second World War, and recent budget policy in the European Union. The aspects of democracy empirically analysed are political autonomy, participation, and deliberation. The material considered includes parliamentary debates, official statistics, economic forecasts, elections manifestos, shadow budgets, general election turnouts, regulations of budget decision-making, and staff numbers in government and parliament budgetary divisions.

    The study reaches the following conclusions among others. (i) The fact that internationalisation increases the divergence between those who make and those who are affected by decisions is not by itself a democratic problem that calls for political reform. (ii) That international organisations may have authorities delegated to them from democratic states is not sufficient to justify them democratically. Democratisation still needs to be undertaken. (iii) The fear that internationalisation dissolves a social trust necessary for political deliberation within nations seems to be unwarranted. If anything, views argued by others in domestic budgetary debate are taken increasingly serious during internationalisation. (iv) The major difficulty with deliberation seems to be its inability to transcend national boundaries. International deliberation at state level has not evolved in response to internationalisation and it is undeveloped in international institutions. (v) Democratic political autonomy diminishes during internationalisation with regard to income redistribution and policy areas taken over by international organisations, but it seems to increase in public spending. (vi) In the area of budget policy-making there are no signs that governments gain power at the expense of parliaments during internationalisation. (vii) To identify crucial democratic issues in a time of internationalisation and to make room for theoretical virtues like general applicability and normative fruitfulness, democracy may be defined as a kind of politics where as many as possible decide as much as possible.

  • 1504.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Democratic founding: We the people and the others - A rejoinder to Mark Tushnet2012In: International Journal of Constitutional Law, ISSN 1474-2640, E-ISSN 1474-2659, Vol. 10, no 3, p. 866-870Article in journal (Refereed)
  • 1505.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Democratism: Towards an explanatory approach to international politics2018In: Review of International Studies, ISSN 0260-2105, E-ISSN 1469-9044, Vol. 44, no 3, p. 547-569Article in journal (Refereed)
    Abstract [en]

    International politics has often been viewed as a brutal place where might trumps right and where, as a consequence, questions of democracy are irrelevant to ask. In the last decades, however, scholars and political leaders have increasingly suggested that elements of democracy exist in governance beyond individual states. If this is so, how does democracy beyond the state shape international politics? This article suggests conceptual preliminaries for theorising consequences of democracy beyond the state in general and their implications for problems of peace and conflict in particular. The purpose is twofold: first, to begin reconstructing existing normative democratic theory into an explanatory perspective sensitive to international politics; second, to indicate how this new perspective is able to explain empirical observations pertaining to conflict and cooperation among states; international institutions; foreign policies; human rights protection; and the violence of transnational terrorist networks.

  • 1506.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Demokrati på europeisk nivå1998In: Demokrati på europeisk nivå? / [ed] Hans Agné, Stockholm: Fritzes offentliga publikationer , 1998, p. 7-44Chapter in book (Other academic)
  • 1507.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Den europeiska föreningen av välfärdsstat och gränsöverskridande kapitalism2000In: Europaperspektiv: årsbok för Europaforskning inom ekonomi, juridik och statskunskap / [ed] Ulf Bernitz, Sverker Gustavsson, Lars Oxelheim, Stockholm: Santérus Förlag, 2000, p. 223-247Chapter in book (Other academic)
  • 1508.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Does global democracy matter? Hypotheses on famine and war2010In: Transnational Actors in Global Governance: Patterns, Explanations and Implications / [ed] Christer Jönsson, Jonas Tallberg, London: Palgrave Macmillan, 2010, p. 177-196Chapter in book (Refereed)
    Abstract [en]

    Would an extension of democracy to global politics have a restraining effect on famine and war just as democracy within states is commonly thought to have? This chapter will develop theoretical arguments that suggest an affirmative answer to this question and encourage the building of a research agenda which submits those arguments to empirical testing. For this purpose I will conceive of global democracy as fostered in part by transnational participation in international institutions. This premise is common in the literature to which this volume seeks to contribute, but it also serves to facilitate an empirical grounding of the theory that I seek to develop: observed variation in transnational participation in international institutions can on the basis of this premise be treated as variation also in a necessary but insufficient condition of a particular model of global democracy.

  • 1509.
    Agné, Hans
    Stockholm University.
    Erkänn stater på demokratiska grunder: Debattartikel2008In: Sydsvenska dagbladetArticle in journal (Other (popular science, discussion, etc.))
  • 1510.
    Agné, Hans
    Stockholm University.
    EU-politiken tvingar de nya moderaterna attbekänna färg: Debattartikel2006In: EuropaportalenArticle in journal (Other (popular science, discussion, etc.))
  • 1511.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science. Swedish Institute of International Affairs, Sweden.
    European Union Conditionality: Coercion or Voluntary adaptation?2009In: Alternatives: Turkish Journal of International Relations, ISSN 1303-5525, E-ISSN 1303-5525, Vol. 8, no 1, p. 1-18Article in journal (Refereed)
    Abstract [en]

    Research on the enlargement conditionality of the European Union sustains opposite positions on the question of whether it represents a means of coercion or an invitation to voluntary adaptation. However, it reveals no dialogue between advocates of these opposed views. In an attempt to replace this gap in communication with a research agenda, this article undertakes a theoretical investigation of the main arguments for regarding compliance with conditionality either as an effect of coercion or as a voluntary choice. It is found that both of these views are worth taking seriously but also that they are premature and in need of further theoretical and in particular empirical clarification. It is suggested, moreover, that coercion and voluntary adaptation are best viewed as complementary rather than competing descriptions of complying with conditionality.

    Since the end of the Cold War the European Union has made use of conditionality in an increasing number of policy areas. Lending programs, trade agreements, foreign aid, and the Eastern enlargements have been promulgated through processes in which countries are required to meet certain conditions. Conditionality is also part of an established practice in global governance, featuring most notoriously in the development programs of the World Bank and the International Monetary Fund. And although trends like China’s economic engagement in Africa and the repayments of foreign debts in South America might limit the impact of Western conditionality, its scope and political significance remain incontestable. Indeed, in Angola, Belarus, Cuba, Indonesia, Macedonia, Serbia, Turkey, Zimbabwe, and many other places, people continue to be subject to conditions set for them by international powers.

  • 1512.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Europeisk demokrati sui generis. En ofta antydd men aldrig utarbetad och intagen ståndpunkt2002Report (Other academic)
  • 1513.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Fel syn på universitetet ger fusk och bristande kvalitet2017In: Dagens nyheter, ISSN 1101-2447, , p. 1Article in journal (Other (popular science, discussion, etc.))
  • 1514.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Fiskal union för en starkare demokrati?2011In: Överlever EMU utan fiskal union? / [ed] Ulf Bernitz, Lars Oxelheim & Thomas Persson, Stockholm: Santérus Förlag, 2011, p. 247-273Chapter in book (Other academic)
  • 1515.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Flyktingkrisen öppnar vägar till en bättre värld2015In: Dagens nyheter, ISSN 1101-2447Article in journal (Other (popular science, discussion, etc.))
  • 1516.
    Agné, Hans
    Stockholm University.
    Gemensamma skatter ökarfriheten i EMU: Brännpunkt debatt2011In: Svenska dagbladetArticle in journal (Other (popular science, discussion, etc.))
  • 1517.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Irretrievable powers and democratic accountability2009In: The illusion of accountability in the European Union / [ed] Sverker Gustavsson, Christer Karlsson, Thomas Persson, London: Routledge, 2009, p. 51-66Chapter in book (Refereed)
  • 1518.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Is successful democracy promotion possible?: The conceptual problem2014In: Democratization, ISSN 1351-0347, E-ISSN 1743-890X, Vol. 21, no 1, p. 49-71Article in journal (Refereed)
    Abstract [en]

    Is it even logically possible for democracy promotion policies to succeed in the sense that they increase democracy in other countries? Empirical research on the conditions for success in democracy promotion must assume an affirmative answer to this question. To study something empirically, it must be logically possible in the first place. Some critical and normative theorists, on the other hand, answer the same question negatively. They suggest that promotion of democracy from the outside is a contradiction in terms, in particular cases or more generally. This article offers a framework for clarifying this disagreement and for facilitating dialogue across empirical research and normative and critical theory. I draw on this framework also to suggest a conception of democracy that maximizes the political relevance of both normative and empirical analyses of democracy promotion (DP), while freeing that same research from the intellectual blockages of potential contradictions. Such intellectual advantages follow, I argue, by defining democracy as an ideal while making its institutional implications explicit; as an exercise of either constituent or constituted power, depending on the political phase being studied; and as located in the internal relationships of world politics.

  • 1519.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Legitimacy in global governance research: How normative or sociological should it be?2018In: Legitimacy in Global Governance : Sources, Processes, and Consequences / [ed] Jonas Tallberg, Karin Bäckstrand, Jan Aart Scholte, Oxford: Oxford University Press, 2018, p. 1-22Chapter in book (Refereed)
    Abstract [en]

    As a prelude to the three themes in the volume, this chapterexplores more generally the turn towards legitimacy in globalgovernance research. The chapter suggests that this turn ispartly explained by shortcomings in normative research onglobal democracy, and the potential of research on legitimacyto overcome those problems. The chapter discusses the meritsand demerits of alternative conceptualizations of legitimacy inserving these purposes. The chapter concludes in favor of anormative-sociological understanding of legitimacy that issensitive to beliefs among members of relevant audiencesabout the normative qualities of political institutions that areultimately specified by analysts

  • 1520.
    Agné, Hans
    Stockholm University. Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Measuring Democratic Deliberation2006In: Political Concepts. Working papers by The Committee on Concepts and Methods of the International Political Science AssociationArticle, review/survey (Other academic)
  • 1521.
    Agné, Hans
    Stockholm University.
    Omotiverat hårda straff i Göteborg. Vad menar egentligen svenska domstolar med "demokrati?: DN Kultur.2002In: Dagens NyheterArticle in journal (Other (popular science, discussion, etc.))
  • 1522.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Popular power in the European Union: Delegated or Alienated?2015In: The European Union: Democratic Principles and Institutional Architectures in Times of Crisis / [ed] Simona Piattoni, Oxford: Oxford University Press, 2015, p. 46-62Chapter in book (Refereed)
    Abstract [en]

    The important role played by national governments in the creation of European institutions and policies is often invoked to reinforce the democratic legitimacy of the European Union. As long as leaders of all states constitutive of the EU are democratically elected, the EU has a reasonable claim to democratic legitimacy for itself, regardless of how it creates policies and institutions on an everyday basis. The powers of the EU are delegated by, and not alienated from, national democracies. Notwithstanding the importance in political practice of this attempt at defending the democratic legitimacy of the EU, this chapter suggests that it fails on theoretical grounds alone and that the normative problem indicated by this failure is aggravated as a consequence of the euro crisis. The chapter identifies more promising avenues toward a legitimate EU by examining democracy defined as a particular form of constituent power.

  • 1523.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Påtvingad demokrati - det filosofiska problemet2006In: Internationella StudierArticle in journal (Other academic)
  • 1524.
    Agné, Hans
    Stockholm University.
    S har inteförstått dagens arbeten: Debattartikel2011In: GöteborgspostenArticle in journal (Other (popular science, discussion, etc.))
  • 1525.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
     The Foundation of Legitimate States: The problem of External Powers2008In: Statsvetenskaplig Tidskrift, ISSN 0039-0747, Vol. 110, no 1, p. 35-42Article in journal (Other academic)
  • 1526.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    The Myth of International Delegation: Limits to and Suggestions for Democratic Theory in the Context of the European Union2007In: Government and Opposition, ISSN 0017-257X, E-ISSN 1477-7053Article in journal (Refereed)
  • 1527.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    To Share Democratic Legitimacy Between Different Political Levels1999In: Citizen Participation in European Politics, Stockholm: Fritzes , 1999, p. 117-136Chapter in book (Other academic)
  • 1528.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    We the People and the Others: The Co-founding of Democratic States2009In: ConWEB. Webpapers on Constitutionalism & Governance beyond the StateArticle in journal (Refereed)
  • 1529.
    Agné, Hans
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Why does global democracy not inspire explanatory research? Removing conceptual obstacles toward a new research agenda2018In: Journal of International Political Theory, ISSN 1755-0882, E-ISSN 1755-1722Article in journal (Refereed)
    Abstract [en]

    Democratic practices exist in politics within and beyond individual states. To date, however, it is only the democratic practices within states that have been analyzed in search for causal explanations of political outcomes, for example, peace and human rights protection. Having established the problematic nature of this situation, the purpose of this article is to explain why the situation emerges in political science and then to suggest a strategy to overcome it. The lack of attention to global democracy, or democracy beyond the state more generally, in explanatory theory is suggested to depend on prevalent but unnecessary conceptual delimitations of democracy which contradict standard assumptions about international politics. Those contradictions can be avoided, however, by defining democracy as rule by the largest group. It is argued that the concept of rule by the largest group, while protecting traditional virtues of democracy such as freedom and equality of individual persons in politics, allows scholars to describe a wider range of international practices than have been available for empirical research based on the dominating conceptions of democracy in normative and empirical literatures. Most fundamentally, it frees future research on the effects of democracy beyond the state from a key risk of self-contradiction.

  • 1530.
    Agné, Hans
    Stockholm University.
    Öppenhet skapar en säkrare värld: Brännpunkt debatt2010In: GöteborgspostenArticle in journal (Other (popular science, discussion, etc.))
  • 1531.
    Agné, Hans
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Bartelson, Jens
    Erman, Eva
    Lindemann, Thomas
    Herborth, Benjamin
    Kessler, Oliver
    Chwaszcza, Christine
    Fabry, Mikulas
    Krasner, Stephen D.
    Symposium 'The politics of international recognition'2013In: International Theory, ISSN 1752-9719, E-ISSN 1752-9727, Vol. 5, no 1, p. 94-107Article in journal (Refereed)
    Abstract [en]

    Recognition plays a multifaceted role in international theory. In rarely communicating literatures, the term is invoked to explain creation of new states and international structures; policy choices by state and non-state actors; and normative justifiability, or lack thereof, of foreign and international politics. The purpose of this symposium is to open new possibilities for imagining and studying recognition in international politics by drawing together different strands of research in this area. More specifically, the forum brings new attention to controversies on the creation of states, which has traditionally been a preserve for discussion in International Law, by invoking social theories of recognition that have developed as part of International Relations more recently. It is suggested that broadening imagination across legal and social approaches to recognition provides the resources needed for theories with this object to be of maximal relevance to political practice.

  • 1532.
    Agné, Hans
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Dellmuth, Lisa Maria
    Stockholm University, Faculty of Science, Stockholm Resilience Centre.
    Tallberg, Jonas
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Does stakeholder involvement foster democratic legitimacy in international organizations? An empirical assessment of a normative theory2015In: The Review of International Organizations, ISSN 1559-7431, E-ISSN 1559-744X, Vol. 10, no 4, p. 465-488Article in journal (Refereed)
    Abstract [en]

    The involvement of non-state organizations in global governance is widely seen as an important step toward global democracy. Proponents of "stakeholder democracy" argue that stakeholder organizations, such as civil society groups and other non-state actors, may represent people significantly affected by global decisions better than elected governments. In this article we identify a particularly promising sociological variant of this argument, test it against new evidence from a large-scale survey among stakeholder organizations with varying levels of involvement in international organizations (IOs), and find that the suggested stakeholder mechanism for producing democratic legitimacy in global governance does not work. Stakeholder involvement is unproductive for democratic legitimacy in IOs as perceived by stakeholders themselves. We suggest alternative explanations of this finding and argue that empirical analysis is useful for adjudicating normative arguments on the viability of stakeholder democracy in global governance.

  • 1533.
    Agné, Hans
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Jansson, Maria
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Näsström, Sofia
    Tiggarna en ödesfråga för EU2014In: Göteborgsposten, ISSN 1103-9345, no 23 majArticle in journal (Other (popular science, discussion, etc.))
  • 1534.
    Agné, Hans
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Mörkenstam, Ulf
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    PhD students supervised collectively rather than individually are quicker to complete their theses2018Other (Other academic)
    Abstract [en]

    Given the choice, most PhD students would prefer to receive individual supervision rather than be supervised alongside their peers as part of a collective. This is understandable, given the undivided attention and precise, directly relevant advice one would receive. However, Hans Agné and Ulf Mörkenstam have compared the experiences of individually and collectively supervised students on the same doctoral programme and found that collective supervision, during the first year at least, is correlated with significantly shorter times to thesis completion compared to individual supervision.

  • 1535.
    Agné, Hans
    et al.
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Mörkenstam, Ulf
    Stockholm University, Faculty of Social Sciences, Department of Political Science.
    Should first-year doctoral students be supervised collectively or individually? Effects on thesis completion and time to completion2018In: Higher Education Research and Development, ISSN 0729-4360, E-ISSN 1469-8366, Vol. 37, no 4, p. 669-682Article in journal (Refereed)
    Abstract [en]

    Whether supervision of doctoral students is best pursued individually or collectively is a recurring but unresolved question in debates on higher education. The rarity of longitudinal data and the common usage of qualitative methods to analyse a limited number of cases have left the effectiveness of either model largely untested. To assist with overcoming these problems, this paper reports on a study of 145 individuals admitted to a specific doctoral programme between 1991 and 2014. It analyses the effects of either individual or collective supervision during the first year of the programme on the probability of thesis completion and the time to thesis completion. Group means, Cox regressions, Kaplan–Meir curves and Ordinary Least Square regressions are calculated on the basis of the number of months spent by each doctoral student in the programme without defending a thesis. Studied in these ways, it appears that collective supervision in the first year significantly increases the probability of thesis completion and decreases the time to thesis completion. Collective supervision may have this effect as it enhances peer learning, creates a wider academic learning context, allows doctoral students to gradually acquire the values and behaviours of a research practice community and reduces the risk of premature selection of permanent supervisors.

  • 1536.
    Agné, Sara
    Stockholm University, Faculty of Social Sciences, Department of Education.
    "-Hallå, bajskorv!": Om hur könad subjektivitet skapas i språkandet mellan mig som pedagog och barn i förskolan.2010Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Den här uppsatsens syfte är att undersöka vad ett feministiskt poststrukturalistiskt subjektsteoretiskt angreppssätt kan ge för kunskap om barns subjekt- och könsskapande i förskolan. Detta teoretiskt/metodologiska perspektiv innebär i den här uppsatsen att kön ses som något som görs inom språk och diskurser i vardagliga lokala pedagogiska processer och att jag, både som pedagog och forskare, deltar som medskapande i dessa. I undersökningen analyseras samtalet mellan mig och fem barn under en aktivitet som jag leder och som handlar om bokstavssymboler och bokstavsljud. Barnen var i åldrarna fem till sex år och samtalet är inspelat med mp3-spelare. Genom diskursanalys och dekonstruktion gör jag olika läsningar av tre sekvenser från ljudinspelningen. Jag skriver fram ett antal verksamma diskurser: Vuxen/barn-diskursen, rolig pojke-diskursen, fina flickan-diskursen, bokstavs-diskursen, utvecklings-diskursen, tävlings- och samarbetsdiskurserna samt den kompensatoriska genus-diskursen. Dessa diskurser som jag identifierar/skapar bildar sammantaget diskursiva kedjor som sätter gränser för vad som är möjligt att göra och bli, som kön och subjekt, i den här situationen. I mina läsningar blir alla vi som deltar, både barnen och jag, aktiva i att skapa könad subjektivitet. Särskilt intressant ur mitt perspektiv som blivande förskollärare är hur jag, i egenskap av pedagog och vuxen, omedvetet och trots mina ambitioner att göra annorlunda, deltar i att skapa stereotypa könssubjekt. Den roliga och tävlingsinriktade pojken och den fina samarbetande flickan positioneras via den makt jag ges i samtalet.

  • 1537.
    Agoes, Shanty
    Stockholm University, Faculty of Social Sciences, Department of Psychology.
    Unga killars upplevelser av faktorer i kamratgruppen som förstärker deras brottsliga beteende2009Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Ungdomsbrottsligheten ökar och en allmän uppfattning i samhället råder, att ungdomar begår brott i sällskap av kamrater. Undersökningens syfte var att söka förståelse och kunskap för upplevda bidragande faktorer inom kamratgruppen som gör att vissa unga killar begår brott. Kvalitativa intervjuer genomfördes med sju killar mellan 16 och 25 år, alla med erfarenhet av brottslighet. Råmaterialet analyserades utifrån tematisk analysmetod. Resultatet visade att gruppen uppfyllde individernas identitetsskapande behov. Likaså var grupptillhörigheten en faktor där individerna sökte sig till en fristad med likasinnade personer att känna gemenskap med. Lojalitet var även ett framträdande begrepp, som bottnade i oviljan att svika kamratgruppen liksom hederskodexet att inte ”gola”. Resultatet vittnar om att upplevelsen av sitt egenvärde, bilden av vad vänskap är samt strävan efter gemenskap kan dras till det yttersta och därmed leda till brottsligt beteende, allt för att passa in – ”jag gjorde ju bara som alla andra”.

  • 1538.
    Agosta, Lorenzo
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Atomistic simulations of structural and dynamical properties of liquids under geometric constraints2019Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The statistical-mechanical description of liquids represents a formidable problem in physic due to the absence of the analytical theory of the liquid state. Atomistic simulations represent a unique source of information in this respect and can be implemented in order address macroscopically measurable liquid properties, including its structure and dynamics, based on the information of the interactions between its constituent molecules. A particularly intriguing challenge is represented by the problem of studying liquids under geometric constraints like surfaces, or where the dimensionality is strongly suppressed like for liquids in 2 dimensions. Experimental measurements cannot access to these regions due to the resolution limitations. In this thesis the study of confined liquids is achieved by particle-based simulations at different level of theory. In particular 3 study cases are considered: the first is the characterization of solid-liquid interfaces. The problem of adsorbing surfaces is treated as a specific case of inorganic surfaces in contact with liquid water. TiO2, chosen as reference material, is studied in its polymorphic structures in aqueous conditions. The surface reactivity and its influence on the liquid structure is solved considering the quantum nature of the system. The mechanism of a solute adsorbing at the interface, considering the interfacial liquid properties, is also addressed. New advanced analysis tools for determining the structural and dynamical properties of water under a surface confinement and the thermodynamic associated to relative adsorption processes are developed. We are confident that this study will represent a mile stone for a systematic study of complex environments as bio-inorganic interfaces. As second case a liquid confined in a 2D surface is studied. Simple liquids having spherically symmetric interaction are very powerful in order to understand the relevant degrees of freedom that governs a certain physical process. Here we expand the definition of 2D hexatic phases to smectic systems in 3D. Finally the self-assembly of a triply periodic mesophase having a Fddd space symmetry group is fully characterized for a simple liquid. This phase can be thought as a geometrical reduction to a two-dimensional separation surface. The possibility of generating such complex network with simple particles, like in colloids, opens the frontiers for the exploration of new materials and applications.

  • 1539.
    Agosta, Lorenzo
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Thermodynamic and electronic characterization of Glycine adsorbing on TiO2 anatase (101) surface from first principles simulationsManuscript (preprint) (Other academic)
  • 1540.
    Agosta, Lorenzo
    et al.
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Brandt, Erik G.
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Lyubartsev, Alexander P.
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Diffusion and reaction pathways of water near fully hydrated TiO2 surfaces from ab initio molecular dynamics2017In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 147, no 2, article id 024704Article in journal (Refereed)
    Abstract [en]

    Ab initio molecular dynamics simulations are reported forwater-embedded TiO2 surfaces to determine the diffusive and reactive behavior at full hydration. A three-domain model is developed for six surfaces [rutile (110), (100), and (001), and anatase (101), (100), and (001)] which describes waters as hard (irreversibly bound to the surface), soft (with reduced mobility but orientation freedom near the surface), or bulk. The model explains previous experimental data and provides a detailed picture of water diffusion near TiO2 surfaces. Water reactivity is analyzed with a graph-theoretic approach that reveals a number of reaction pathways on TiO2 which occur at full hydration, in addition to direct water splitting. Hydronium (H3O+) is identified to be a key intermediate state, which facilitates water dissociation by proton hopping between intact and dissociated waters near the surfaces. These discoveries significantly improve the understanding of nanoscale water dynamics and reactivity at TiO2 interfaces under ambient conditions.

  • 1541.
    Agosta, Lorenzo
    et al.
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Brandt, Erik G.
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Lyubartsev, Alexander P.
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Improved Sampling in Ab Initio-Based Free Energy Calculations of Amino Acids at Solid-Liquid Interfaces: A Tight-Binding Assessment on TiO2 Anatase (101)Manuscript (preprint) (Other academic)
    Abstract [en]

    Atomistic simulations are powerful for probing molecules at bioinorganic interfaces and excellent complements to scarcely available experimental techniques. The free energy controls the adsorption behavior of molecules on nanosurfaces, and is therefore a quantity of particular importance. Advanced sampling techniques can efficiently explore the adsorption free energy landscape, but molecular simulations with classical (Newtownian) dynamics fail to capture charge transfer and polarization at the solid-liquid interface. First principle simulations do not suffer from this limitation but come with a heavy computational load. Here, we introduce an efficient protocol to explore the free energy of adsorption in the ab initio framework. This approach accurately models the complex phenomena at bio-inorganic surfaces on the nanoscale and properly samples the relevant thermodynamic properties. We present a case study of adsorption of the Lysine and Aspartate amino acids on the anatase (101) TiO2 surface with the tight binding method. The high values of the calculated adsorption free energies highlight the importance of a proper description of the electronic state for surface binding processes.

  • 1542.
    Agosta, Lorenzo
    et al.
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Metere, Alfredo
    Dzugutov, Mikhail
    Hexatic smectic phase with algebraically decaying bond-orientational order2018In: Physical review. E, ISSN 2470-0045, E-ISSN 2470-0053, Vol. 97, no 5, article id 052702Article in journal (Refereed)
    Abstract [en]

    The hexatic phase predicted by the theories of two-dimensional melting is characterized by the power-law decay of the orientational correlations, whereas the in-layer bond orientational order in all the hexatic smectic phases observed so far was found to be long range. We report a hexatic smectic phase where the in-layer bond orientational correlations decay algebraically, in quantitative agreement with the hexatic ordering predicted by the theory for two dimensions. The phase was formed in a molecular dynamics simulation of a one-component system of particles interacting via a spherically symmetric potential. The present results thus demonstrate that the theoretically predicted two-dimensional hexatic order can exist in a three-dimensional system.

  • 1543.
    Agosta, Lorenzo
    et al.
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Metere, Alfredo
    Oleynikov, Peter
    Dzugutov, Mikhail
    Self-assembly of orthorhombic Fddd network in simple one-component liquidsManuscript (preprint) (Other academic)
    Abstract [en]

    Triply periodic continuous morphologies arising a result of the microphase separation in block copolymer melts have so far never been observed self-assembled in systems of particles with spherically symmetric interaction. We report a molecular dynamics simulation of two simple one-component liquids which self-assemble upon cooling into equilibrium orthorhombic continuous network morphologies with the Fddd space group symmetry reproducing the structure of those observed in block copolymers. The finding that the geometry of constituent molecules isn't relevant for the formation of triply periodic networks indicates the generic nature of this class of phase transition.

  • 1544.
    Agosta, Salvatore J
    et al.
    University of Toronto.
    Janz, Niklas
    Stockholm University, Faculty of Science, Department of Zoology.
    Brooks, Daniel R
    University of Toronto.
    How specialists can be generalists: resolving the “parasite paradox” and implications for emerging infectious disease2010In: Zoologia, ISSN 1984-4670, Vol. 27, no 2, p. 151-162Article in journal (Refereed)
    Abstract [en]

    The parasite paradox arises from the dual observations that parasites (broadly construed, including phy- tophagous insects) are resource specialists with restricted host ranges, and yet shifts onto relatively unrelated hosts are common in the phylogenetic diversification of parasite lineages and directly observable in ecological time. We synthe- size the emerging solution to this paradox: phenotypic flexibility and phylogenetic conservatism in traits related to resource use, grouped under the term ecological fitting, provide substantial opportunities for rapid host switching in changing environments, in the absence of the evolution of novel host-utilization capabilities. We discuss mechanisms behind ecological fitting, its implications for defining specialists and generalists, and briefly review empirical examples of host shifts in the context of ecological fitting. We conclude that host shifts via ecological fitting provide the fuel for the expansion phase of the recently proposed oscillation hypothesis of host range and speciation, and, more generally, the generation of novel combinations of interacting species within the geographic mosaic theory of coevolution. Finally, we conclude that taxon pulses, driven by climate change and large-scale ecological perturbation are drivers of biotic mixing and resultant ecological fitting, which leads to increased rates of rapid host switching, including the agents of Emerging Infectious Disease.

  • 1545.
    Agrawal, Santosh
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Lenormand, Maud
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Martín-Matute, Belén
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Selective Alkylation of (Hetero)Aromatic Amines with Alcohols Catalyzed by a Ruthenium Pincer Complex2012In: Organic Letters, ISSN 1523-7060, E-ISSN 1523-7052, Vol. 14, no 6, p. 1456-1459Article in journal (Refereed)
    Abstract [en]

    A readily available pincer ruthenium(II) complex catalyzes the selective monoalkylation of (hetero)aromatic amines with a wide range of primary alcohols (including pyridine-, furan-, and thiophene-substituted alcohols) with high efficiency when used in low catalyst loadings (1 mol %). Tertiary amine formation via polyalkylation does not occur, making this ruthenium system an excellent catalyst for the synthesis of sec-amines.

  • 1546.
    Agrawal, Santosh
    et al.
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Martínez-Castro, Elisa
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Marcos, Rocio
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Martín-Matute, Belén
    Stockholm University, Faculty of Science, Department of Organic Chemistry.
    Readily Available Ruthenium Complex for Efficient Dynamic Kinetic Resolution of Aromatic alpha-Hydroxy Ketones2014In: Organic Letters, ISSN 1523-7060, E-ISSN 1523-7052, Vol. 16, no 8, p. 2256-2259Article in journal (Refereed)
    Abstract [en]

    A ruthenium complex formed from commercially available [Ru(p-cymene)Cl-2](2) and 1,4-bis(diphenylphosphino)butane catalyzes the racemization of aromatic alpha-hydroxy ketones very efficiently at room temperature. The racemization is fully compatible with a kinetic resolution catalyzed by a lipase from Pseudomonas stutzeri. This is the first example of dynamic kinetic resolution of alpha-hydroxy ketones at ambient temperature in which the metal and enzyme catalysts work in concert in one pot at room temperature to give quantitative yields of esters of alpha-hydroxy ketones with very high enantioselectivity.

  • 1547.
    Agrenius, Ellen
    Stockholm University, Faculty of Law, Department of Law.
    Labour and human rights standards internationally: CSR as the new paradigm?2013Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
  • 1548. Agréus, Lars
    et al.
    Hellström, Per M.
    Talley, Nicholas J.
    Wallner, Bengt
    Forsberg, Anna
    Vieth, Michael
    Veits, Lothar
    Björkegren, Karin
    Engstrand, Lars
    Andreasson, Anna
    Stockholm University, Faculty of Social Sciences, Stress Research Institute. Karolinska Institutet, Sweden.
    Towards a healthy stomach? Helicobacter pylori prevalence has dramatically decreased over 23 years in adults in a Swedish community2016In: United European Gastroenterology journal, ISSN 2050-6406, E-ISSN 2050-6414, Vol. 4, no 5, p. 686-696Article in journal (Refereed)
    Abstract [en]

    Background In Western countries the prevalence of Helicobacter pylori (H. pylori) infection may be declining but there is a lack of recent longitudinal population studies. We evaluated the changing epidemiology over a 23-year period in Sweden. Materials and methods In 1989, the validated Abdominal Symptom Questionnaire (ASQ) was mailed to a random sample of inhabitants (ages 22-80 years) in a Swedish community, and 1097 (87%) responded. H. pylori serology was analysed in a representative subsample (n=145). Twenty-three years later, the ASQ was mailed again using similar selection criteria, and 388 out of 1036 responders had an upper endoscopy with assessment of H. pylori and corpus atrophy status. Results The prevalence of positive H. pylori serology decreased from 37.9% (1989) to 15.8% (2012), corresponding to a decrease in odds of 75% per decade (odds ratio (OR): 0.25; 95% confidence interval (CI): 0.11-0.59, p=0.001) independent of age, gender, body mass index (BMI) and level of education, with a pattern consistent with a birth cohort effect. The prevalence increased with increasing age (p=0.001). The prevalence of H. pylori on histology in 2012 was 11.4% (95% CI 8.6-15.0). The prevalence of corpus atrophy on serology and/or histology in 2012 was 3.2% (95% CI 1.8-5.5); all cases were 57 years old. Conclusion The stomach is healthier in 2012 compared with 1989. H. pylori prevalence in adults has decreased over the last two decades to a level where clinical management might be affected.

  • 1549.
    Agthe, Michael
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Crystallization on the Mesoscale: Self-Assembly of Iron Oxide Nanocubes into Mesocrystals2016Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Self-assembly of nanoparticles is a promising route to form complex, nanostructured materials with functional properties. Nanoparticle assemblies characterized by a crystallographic alignment of the nanoparticles on the atomic scale, i.e. mesocrystals, are commonly found in nature with outstanding functional and mechanical properties. This thesis aims to investigate and understand the formation mechanisms of mesocrystals formed by self-assembling iron oxide nanocubes.

    We have used the thermal decomposition method to synthesize monodisperse, oleate-capped iron oxide nanocubes with average edge lengths between 7 nm and 12 nm and studied the evaporation-induced self-assembly in dilute toluene-based nanocube dispersions. The influence of packing constraints on the alignment of the nanocubes in nanofluidic containers has been investigated with small and wide angle X-ray scattering (SAXS and WAXS, respectively). We found that the nanocubes preferentially orient one of their {100} faces with the confining channel wall and display mesocrystalline alignment irrespective of the channel widths. 

    We manipulated the solvent evaporation rate of drop-cast dispersions on fluorosilane-functionalized silica substrates in a custom-designed cell. The growth stages of the assembly process were investigated using light microscopy and quartz crystal microbalance with dissipation monitoring (QCM-D). We found that particle transport phenomena, e.g. the coffee ring effect and Marangoni flow, result in complex-shaped arrays near the three-phase contact line of a drying colloidal drop when the nitrogen flow rate is high. Diffusion-driven nanoparticle assembly into large mesocrystals with a well-defined morphology dominates at much lower nitrogen flow rates. Analysis of the time-resolved video microscopy data was used to quantify the mesocrystal growth and establish a particle diffusion-based, three-dimensional growth model. The dissipation obtained from the QCM-D signal reached its maximum value when the microscopy-observed lateral growth of the mesocrystals ceased, which we address to the fluid-like behavior of the mesocrystals and their weak binding to the substrate. Analysis of electron microscopy images and diffraction patterns showed that the formed arrays display significant nanoparticle ordering, regardless of the distinctive formation process. 

    We followed the two-stage formation mechanism of mesocrystals in levitating colloidal drops with real-time SAXS. Modelling of the SAXS data with the square-well potential together with calculations of van der Waals interactions suggests that the nanocubes initially form disordered clusters, which quickly transform into an ordered phase.

  • 1550.
    Agthe, Michael
    et al.
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Høydalsvik, Kristin
    Mayence, Arnaud
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Karvinen, Petri
    Liebi, Marianne
    Bergström, Lennart
    Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
    Nygård, Kim
    Controlling Orientational and Translational Order of Iron Oxide Nanocubes by Assembly in Nanofluidic Containers2015In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 31, no 45, p. 12537-12543Article in journal (Refereed)
    Abstract [en]

    We demonstrate that spatial confinement can be used to control the orientational and translational order of cubic nanoparticles. For this purpose we have combined X-ray scattering and scanning electron microscopy to study the ordering of iron oxide nanocubes that have self-assembled from toluene-based dispersions in nanofluidic channels. An analysis of scattering vector components with directions parallel and perpendicular to the slit walls shows that the confining walls induce a preferential parallel alignment of the nanocube (100) faces. Moreover, slit wall separations that are commensurate with an integer multiple of the edge length of the oleic acid-capped nanocubes result in a more pronounced translational order of the self-assembled arrays compared to incommensurate confinement. These results show that the confined assembly of anisotropic nanocrystals is a promising route to nanoscale devices with tunable anisotropic properties.

28293031323334 1501 - 1550 of 105553
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