797 research outputs found
Electromagnetic field angular momentum in condensed matter systems
Various electromagnetic systems can carry an angular momentum in their {\bf
E} and {\bf B} fields. The electromagnetic field angular momentum (EMAM) of
these systems can combine with the spin angular momentum to give composite
fermions or composite bosons. In this paper we examine the possiblity that an
EMAM could provide an explanation of the fractional quantum Hall effect (FQHE)
which is complimentary to the Chern-Simons explanation. We also examine a toy
model of a non-BCS superconductor (e.g. high superconductors) in terms of
an EMAM. The models presented give a common, simple picture of these two
systems in terms of an EMAM. The presence of an EMAM in these systems might be
tested through the observation of the decay modes of a charged, spin zero
unstable particle inside one of these systems.Comment: 17 pages, no figures, to be published in Phys. Rev.
Changing social contracts in climate-change adaptation
Risks from extreme weather events are mediated through
state, civil society and individual action
1
,
2
. We propose evolving
social contracts as a primary mechanism by which adaptation
to climate change proceeds. We use a natural experiment
of policy and social contexts of the UK and Ireland affected
by the same meteorological event and resultant flooding in
November 2009. We analyse data from policy documents and
from household surveys of 356 residents in western Ireland and
northwest England. We find significant differences between
perceptions of individual responsibility for protection across
the jurisdictions and between perceptions of future risk from
populations directly affected by flooding events. These explain
differences in stated willingness to take individual adaptive
actions when state support retrenches. We therefore show
that expectations for state protection are critical in mediating
impacts and promoting longer-term adaptation. We argue
that making social contracts explicit may smooth pathways to
effective and legitimate adaptation
The Effects of Media and their Logic on Legitimacy Sources within Local Governance Networks: A Three-Case Comparative Study
__Abstract__
Although theoretical and empirical work on the democratic legitimacy of
governance networks is growing, little attention has been paid to the impact of mediatisation
on democracies. Media have their own logic of news-making led by the media’s rules,
aims, production routines and constraints, which affect political decision-making processes.
In this article, we specifically study how media and their logic affect three
democratic legitimacy sources of political decision-making within governance networks:
voice, due deliberation and accountability. We conducted a comparative case study of
three local governance networks using a mixed method design, combining extensive
qualitative case studies, interviews and a quantitative content analysis of media reports.
In all three cases, media logic increased voice possibilities for citizen groups.
Furthermore, it broadened the deliberation process, although this did not improve the
quality of this process per se, because the media focus on drama and negativity. Finally,
media logic often pushed political authorities into a reactive communication style as they
had to fight against negative images in the media. Proactive communication about
projects, such as public relation (PR) strategies and branding, is difficult in such a
media landscape
Deliberating stratospheric aerosols for climate geoengineering and the SPICE project
Increasing concerns about the narrowing window for averting dangerous climate change have prompted calls for research into geoengineering, alongside dialogue with the public regarding this as a possible response. We report results of the first public engagement study to explore the ethics and acceptability of stratospheric aerosol technology and a proposed field trial (the Stratospheric Particle Injection for Climate Engineering (SPICE) ‘pipe and balloon’ test bed) of components for an aerosol deployment mechanism. Although almost all of our participants were willing to allow the field trial to proceed, very few were comfortable with using stratospheric aerosols. This Perspective also discusses how these findings were used in a responsible innovation process for the SPICE project initiated by the UK’s research councils
The Green Economy: Functional Domains and Theoretical Directions of Enquiry
The green economy is a highly complex construct in terms of its attempts to integrate economic, environmental, and social concerns, the wide range of actors involved, its material outcomes, and the forms of governance needed to regulate processes of economic greening. As such, it poses new empirical and theoretical challenges for social science research on socioenvironmental futures. This paper has two main aims. The first is to survey the emergent features and functional domains of the green economy. The second is to consider theoretical tools that might be used to analyse the drivers and processes shaping the green economy. Focusing on literature on sociotechnical transitions, ecological modernisation, the ‘green’ cultural economy, and postpolitical governance, we argue that understanding the functional and spatial heterogeneity of the green economy necessitates a multitheoretical approach. We then explore how combining branches of research on socioenvironmental governance can lead to theoretically and ontologically richer insights into the drivers, practices, and power relations within the green economy. In so doing, we respond to calls for socioeconomic research on environmental change which is neither just empirical nor bound to one theoretical outlook to the detriment of understanding the complexity of socioenvironmental governance and human–nature relations.</jats:p
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Performed and preferred participation in science and technology across Europe: Exploring an alternative idea of "democratic deficit"
Republican ideals of active scientific citizenship and extensive use of deliberative, democratic decision making have come to dominate the public participation agenda, and academic analyses have focused on the deficit of public involvement vis-à-vis these normative ideals. In this paper we use latent class models to explore what Eurobarometer survey data can tell us about the ways in which people participate in tacit or in policy-active ways with developments in science and technology, but instead of focusing on the distance between observed participation and the dominant, normative ideal of participation, we examine the distance between what people do, and what they themselves think is appropriate in terms of involvement. The typology of citizens emerging from the analyses entails an entirely different diagnosis of democratic deficit, one that stresses imbalance between performed and preferred participation
Participatory-deliberative processes and public policy agendas:Lessons for policy and practice
open access journalParticipatory and deliberative processes have proliferated over
recent decades in public administration. These seek to increase
the effectiveness and democratic quality of policy making by
involving citizens in policy. However, these have mainly operated
at local levels of governance, and democratic theorists and practitioners
have developed an ambition to scale these up in order to
democratize higher tiers of government. This paper draws policy
lessons from research on a “multi-level” process that held a similar
ambition. The Sustainable Communities Act sought to integrate
the results of various locally organized citizen deliberations within
the policy development processes of central UK government. In
doing so, it aimed to democratize central government problem
definition and agenda-setting processes. The paper distinguishes
between achievements and failures explained by process design,
and more fundamental obstacles to do with broader contextual
factors. As such, it identifies lessons for the amelioration of design
features, while recognizing constraints that are often beyond the
agency of local practitioners. The findings offer practical insights
for policy workers and democratic reformers seeking to institutionalize
participatory and deliberative innovations
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