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Showing papers by "University of Sussex published in 2009"


Journal ArticleDOI
TL;DR: A series of improvements to the spectroscopic reductions are described, including better flat fielding and improved wavelength calibration at the blue end, better processing of objects with extremely strong narrow emission lines, and an improved determination of stellar metallicities.
Abstract: This paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDSS-II. It includes 11,663 deg^2 of imaging data, with most of the ~2000 deg^2 increment over the previous data release lying in regions of low Galactic latitude. The catalog contains five-band photometry for 357 million distinct objects. The survey also includes repeat photometry on a 120° long, 2°.5 wide stripe along the celestial equator in the Southern Galactic Cap, with some regions covered by as many as 90 individual imaging runs. We include a co-addition of the best of these data, going roughly 2 mag fainter than the main survey over 250 deg^2. The survey has completed spectroscopy over 9380 deg^2; the spectroscopy is now complete over a large contiguous area of the Northern Galactic Cap, closing the gap that was present in previous data releases. There are over 1.6 million spectra in total, including 930,000 galaxies, 120,000 quasars, and 460,000 stars. The data release includes improved stellar photometry at low Galactic latitude. The astrometry has all been recalibrated with the second version of the USNO CCD Astrograph Catalog, reducing the rms statistical errors at the bright end to 45 milliarcseconds per coordinate. We further quantify a systematic error in bright galaxy photometry due to poor sky determination; this problem is less severe than previously reported for the majority of galaxies. Finally, we describe a series of improvements to the spectroscopic reductions, including better flat fielding and improved wavelength calibration at the blue end, better processing of objects with extremely strong narrow emission lines, and an improved determination of stellar metallicities.

5,665 citations


Book ChapterDOI
02 Mar 2009
TL;DR: In this article, a course on the foundations of social theory, starting with the French and Scottish Enlightenments and the beginnings of a specifically sociological worldview, is presented, where the authors try to understand their theories not just as historical relics, but as living sets of ideas relevant to contemporary social issues.
Abstract: This course will deal with the foundations of social theory, starting with the French and Scottish Enlightenments and the beginnings of a specifically sociological worldview. We will then move on to Durkheim’s organic view of society, to Marx’s dialectical materialism, finishing with Weber’s Verstehen sociology and ideal types of authority. We’ll try to understand their theories not just as historical relics, but as living sets of ideas relevant to contemporary social issues. Class attendance and participation will be strongly encouraged, as will a critical engagement with the ideas presented in the class.

4,525 citations


Journal ArticleDOI
TL;DR: Classifying interventions according to component techniques and theoretically derived technique combinations and conducting meta-regression enabled identification of effective components of interventions designed to increase physical activity and healthy eating.
Abstract: Objective: Meta-analyses of behavior change (BC) interventions typically find large heterogeneity in effectiveness and small effects. This study aimed to assess the effectiveness of active BC interventions designed to promote physical activity and healthy eating and investigate whether theoretically specified BC techniques improve outcome. Design: Interventions, evaluated in experimental or quasi-experimental studies, using behavioral and/or cognitive techniques to increase physical activity and healthy eating in adults, were systematically reviewed. Intervention content was reliably classified into 26 BC techniques and the effects of individual techniques, and of a theoretically derived combination of self-regulation techniques, were assessed using meta-regression. Main Outcome Measures: Valid outcomes of physical activity and healthy eating. Results: The 122 evaluations (N 44,747) produced an overall pooled effect size of 0.31 (95% confidence interval 0.26 to 0.36, I 2 69%). The technique, “self-monitoring,” explained the greatest amount of among-study heterogeneity (13%). Interventions that combined selfmonitoring with at least one other technique derived from control theory were significantly more effective than the other interventions (0.42 vs. 0.26). Conclusion: Classifying interventions according to component techniques and theoretically derived technique combinations and conducting meta-regression enabled identification of effective components of interventions designed to increase physical activity and healthy eating.

1,877 citations


Journal ArticleDOI
Ian Scoones1
TL;DR: Livelihoods perspectives have been central to rural development thinking and practice in the past decade But where do such perspectives come from, what are their conceptual roots, and what influences have shaped the way they have emerged? as mentioned in this paper offers an historical review of key moments in debates about rural livelihoods, identifying the tensions, ambiguities and challenges of such approaches.
Abstract: Livelihoods perspectives have been central to rural development thinking and practice in the past decade But where do such perspectives come from, what are their conceptual roots, and what influences have shaped the way they have emerged? This paper offers an historical review of key moments in debates about rural livelihoods, identifying the tensions, ambiguities and challenges of such approaches A number of core challenges are identified, centred on the need to inject a more thorough-going political analysis into the centre of livelihoods perspectives This will enhance the capacity of livelihoods perspectives to address key lacunae in recent discussions, including questions of knowledge, politics, scale and dynamics

1,561 citations


Journal ArticleDOI
TL;DR: It is shown that for Gaussian variables, Granger causality and transfer entropy are entirely equivalent, thus bridging autoregressive and information-theoretic approaches to data-driven causal inference.
Abstract: Granger causality is a statistical notion of causal influence based on prediction via vector autoregression. Developed originally in the field of econometrics, it has since found application in a broader arena, particularly in neuroscience. More recently transfer entropy, an information-theoretic measure of time-directed information transfer between jointly dependent processes, has gained traction in a similarly wide field. While it has been recognized that the two concepts must be related, the exact relationship has until now not been formally described. Here we show that for Gaussian variables, Granger causality and transfer entropy are entirely equivalent, thus bridging autoregressive and information-theoretic approaches to data-driven causal inference.

953 citations


Journal ArticleDOI
TL;DR: The evidence in favour of Jevons Paradox is far from conclusive, but it does suggest that economywide rebound effects are larger than is conventionally assumed and that energy plays a more important role in driving productivity improvements and economic growth than is normally assumed as discussed by the authors.

860 citations


Journal ArticleDOI
TL;DR: It is suggested that science is indeed becoming more interdisciplinary, but in small steps — drawing mainly from neighboring fields and only modestly increasing the connections to distant cognitive areas.
Abstract: In the last two decades there have been studies claiming that science is becoming ever more interdisciplinary. However, the evidence has been anecdotal or partial. Here we investigate how the degree of interdisciplinarity has changed between 1975 and 2005 over six research domains. To do so, we compute well-established bibliometric indicators alongside a new index of interdisciplinarity (Integration score, aka Rao-Stirling diversity) and a science mapping visualization method. The results attest to notable changes in research practices over this 30 year period, namely major increases in number of cited disciplines and references per article (both show about 50% growth), and co-authors per article (about 75% growth). However, the new index of interdisciplinarity only shows a modest increase (mostly around 5% growth). Science maps hint that this is because the distribution of citations of an article remains mainly within neighboring disciplinary areas. These findings suggest that science is indeed becoming more interdisciplinary, but in small steps — drawing mainly from neighboring fields and only modestly increasing the connections to distant cognitive areas. The combination of metrics and overlay science maps provides general benchmarks for future studies of interdisciplinary research characteristics.

664 citations


Journal ArticleDOI
TL;DR: In this paper, the impact of regional variety and trade linkages on regional economic growth by means of export and import data by Italian province (NUTS 3) and sector (three-digit) for the period 1995-2003 was presented.
Abstract: This article presents estimates of the impact of regional variety and trade linkages on regional economic growth by means of export and import data by Italian province (NUTS 3) and sector (three-digit) for the period 1995–2003. Our results show strong evidence that related variety contributes to regional economic growth. Thus, Italian regions that are well endowed with sectors that are complementary in terms of competences (i.e., that show related variety) perform better. The article also assesses the effects of the breadth and relatedness of international trade linkages on regional growth, since they may bring new and related variety to a region. Our analysis demonstrates that regional growth is not affected by simply being well connected to the outside world or having a high variety of knowledge flowing into the region. Rather, we found evidence of related extraregional knowledge sparking intersectoral learning across regions. When the cognitive proximity between the extraregional knowledge and the knowledge base of a region is neither too small nor too large, real learning opportunities are present, and the external knowledge contributes to growth in regional employment.

659 citations


Journal ArticleDOI
TL;DR: For both majority and minority members, contact effects on negative emotions were stronger when outgroup contacts were perceived as being typical of their group, and contact effects were also mediated by intergroup anxiety.
Abstract: A widely researched panacea for reducing intergroup prejudice is the contact hypothesis. However, few longitudinal studies can shed light on the direction of causal processes: from contact to prejudice reduction (contact effects) or from prejudice to contact reduction (prejudice effects). The authors conducted a longitudinal field survey in Germany, Belgium, and England with school students. The sample comprised members of both ethnic minorities (n = 512) and ethnic majorities (n = 1,143). Path analyses yielded both lagged contact effects and prejudice effects: Contact reduced prejudice, but prejudice also reduced contact. Furthermore, contact effects were negligible for minority members. These effects were obtained for 2 indicators of prejudice: negative intergroup emotions and desire for social distance. For both majority and minority members, contact effects on negative emotions were stronger when outgroup contacts were perceived as being typical of their group. Contact effects were also mediated by intergroup anxiety. This mediating mechanism was impaired for minority members because of a weakened effect of anxiety on desire for social distance. Theoretical and practical implications of these findings are discussed.

649 citations


Journal ArticleDOI
TL;DR: In this article, the authors present a concept of social understanding as an ongoing, dynamical process of participatory sense-making and mutual incorporation, which they describe from a dynamical agentive systems point of view as an interaction and coordination of two embodied agents, and from a phenomenological approach as a mutual incorporation.
Abstract: Current theories of social cognition are mainly based on a representationalist view. Moreover, they focus on a rather sophisticated and limited aspect of understanding others, i.e. on how we predict and explain others’ behaviours through representing their mental states. Research into the ‘social brain’ has also favoured a third-person paradigm of social cognition as a passive observation of others’ behaviour, attributing it to an inferential, simulative or projective process in the individual brain. In this paper, we present a concept of social understanding as an ongoing, dynamical process of participatory sense-making and mutual incorporation. This process may be described (1) from a dynamical agentive systems point of view as an interaction and coordination of two embodied agents; (2) from a phenomenological approach as a mutual incorporation, i.e. a process in which the lived bodies of both participants extend and form a common intercorporality. Intersubjectivity, it is argued, is not a solitary task of deciphering or simulating the movements of others but means entering a process of embodied interaction and generating common meaning through it. This approach will be further illustrated by an analysis of primary dyadic interaction in early childhood.

546 citations


Journal ArticleDOI
TL;DR: The evidence in favour of ''Jevons Paradox'' is far from conclusive, but it does suggest that economywide rebound effects are larger than is conventionally assumed and that energy plays a more important role in driving productivity improvements and economic growth than is conventional assumed as mentioned in this paper.

Book
30 Jun 2009
TL;DR: The origin and evolution of the primordial perturbation is the key to understanding structure formation in the earliest stages of the universe as discussed by the authors, and it carries clues to the types of physical phenomena active in that extreme high-density environment.
Abstract: The origin and evolution of the primordial perturbation is the key to understanding structure formation in the earliest stages of the Universe It carries clues to the types of physical phenomena active in that extreme high-density environment Through its evolution, generating first the observed cosmic microwave background anisotropies and later the distribution of galaxies and dark matter in the Universe, it probes the properties and dynamics of the present Universe This graduate-level textbook gives a thorough account of theoretical cosmology and perturbations in the early Universe, describing their observational consequences and showing how to relate such observations to primordial physical processes, particularly cosmological inflation With ambitious observational programmes complementing ever-increasing sophistication in theoretical modelling, cosmological studies will remain at the cutting edge of astrophysical studies for the foreseeable future


Journal ArticleDOI
TL;DR: It is shown that in G2, as in G1, NHEJ represents the major DSB‐repair pathway whereas HR is only essential for repair of ∼15% of X‐ or γ‐ray‐induced DSBs.
Abstract: Homologous recombination (HR) and non-homologous end joining (NHEJ) represent distinct pathways for repairing DNA double-strand breaks (DSBs). Previous work implicated Artemis and ATM in an NHEJ-dependent process, which repairs a defined subset of radiation-induced DSBs in G1-phase. Here, we show that in G2, as in G1, NHEJ represents the major DSB-repair pathway whereas HR is only essential for repair of ∼15% of X- or γ-ray-induced DSBs. In addition to requiring the known HR proteins, Brca2, Rad51 and Rad54, repair of radiation-induced DSBs by HR in G2 also involves Artemis and ATM suggesting that they promote NHEJ during G1 but HR during G2. The dependency for ATM for repair is relieved by depleting KAP-1, providing evidence that HR in G2 repairs heterochromatin-associated DSBs. Although not core HR proteins, ATM and Artemis are required for efficient formation of single-stranded DNA and Rad51 foci at radiation-induced DSBs in G2 with Artemis function requiring its endonuclease activity. We suggest that Artemis endonuclease removes lesions or secondary structures, which inhibit end resection and preclude the completion of HR or NHEJ.

Journal ArticleDOI
TL;DR: In this article, benchmark configurations for quantitative validation and comparison of incompressible interfacial flow codes, which model two-dimensional bubbles rising in liquid columns, are proposed, and the benchmark quantities: circularity, center of mass, and mean rise velocity are defined and measured to monitor convergence toward a reference solution.
Abstract: Benchmark configurations for quantitative validation and comparison of incompressible interfacial flow codes, which model two-dimensional bubbles rising in liquid columns, are proposed. The benchmark quantities: circularity, center of mass, and mean rise velocity are defined and measured to monitor convergence toward a reference solution. Comprehensive studies are undertaken by three independent research groups, two representing Eulerian level set finite-element codes and one representing an arbitrary Lagrangian-Eulerian moving grid approach.

Journal ArticleDOI
TL;DR: A crosscultural study with participants from a native African population (Mafa) and Western participants, with both groups being naive to the music of the other respective culture, shows that consonance and permanent sensory dissonance universally influence the perceived pleasantness of music.

Journal ArticleDOI
18 Mar 2009-Minerva
TL;DR: In this paper, the authors discuss university knowledge transfer models and review the recent developments in the literature on research collaborations, intellectual property rights and spin-offs, those forms of knowledge transfer that are more formalized and have been institutionalized in recent years.
Abstract: Universities have long been involved in knowledge transfer activities. Yet the last 30 years have seen major changes in the governance of university–industry interactions. Knowledge transfer has become a strategic issue: as a source of funding for university research and (rightly or wrongly) as a policy tool for economic development. Universities vary enormously in the extent to which they promote and succeed in commercializing academic research. The identification of clear-cut models of governance for university–industry interactions and knowledge transfer processes is not straightforward. The purpose of this article is to critically discuss university knowledge transfer models and review the recent developments in the literature on research collaborations, intellectual property rights and spin-offs, those forms of knowledge transfer that are more formalized and have been institutionalized in recent years. The article also addresses the role played by university knowledge transfer organizations in promoting commercialization of research results.

Journal ArticleDOI
TL;DR: This work analyzes several data sets of protein-coding genes and noncoding regions from hominids and Drosophila and estimates the fraction of adaptive nucleotide substitutions (alpha), which is a measure of the prevalence of adaptive evolution relative to genetic drift.
Abstract: The prevalence of adaptive evolution relative to genetic drift is a central problem in molecular evolution. Methods to estimate the fraction of adaptive nucleotide substitutions (a) have been developed, based on the McDonaldKreitman test, that contrast polymorphism and divergence between selectively and neutrally evolving sites. However, these methods are expected to give downwardly biased estimates of a if there are slightly deleterious mutations, because these inflate polymorphism relative to divergence. Here, we estimate a by simultaneously estimating the distribution of fitness effects of new mutations at selected sites from the site frequency spectrum and the number of adaptive substitutions. We test the method using simulations. If data meet the assumptions of the analysis model, estimates of a show little bias, even when there is little or no recombination. However, population size differences between the divergence and polymorphism phases may cause a to be over or underestimated by a predictable factor that depends on the magnitude of the population size change and the shape of the distribution of effects of deleterious mutations. We analyze several data sets of protein-coding genes and noncoding regions from hominids and Drosophila. In Drosophila genes, we estimate that approximately 50% of amino acid substitutions and approximately 20% of substitutions in introns are adaptive. In protein-coding and noncoding data sets of humans, comparison to macaque sequences reveals little evidence for adaptive substitutions. However, the true frequency of adaptive substitutions in human-coding DNA could be as high as 40%, because estimates based on current polymorphism may be strongly downwardly biased by a decrease in the effective population size along the human lineage.

Journal ArticleDOI
TL;DR: This work presents the first examples of rationally designed and fully characterized self-assembling hydrogels based on standard linear peptides with purely α-helical structures, which it is demonstrated that support both growth and differentiation of rat adrenal pheochromocytoma cells for sustained periods in culture.
Abstract: Biocompatible hydrogels have a wide variety of potential applications in biotechnology and medicine, such as the controlled delivery and release of cells, cosmetics and drugs, and as supports for cell growth and tissue engineering. Rational peptide design and engineering are emerging as promising new routes to such functional biomaterials. Here, we present the first examples of rationally designed and fully characterized self-assembling hydrogels based on standard linear peptides with purely alpha-helical structures, which we call hydrogelating self-assembling fibres (hSAFs). These form spanning networks of alpha-helical fibrils that interact to give self-supporting physical hydrogels of >99% water content. The peptide sequences can be engineered to alter the underlying mechanism of gelation and, consequently, the hydrogel properties. Interestingly, for example, those with hydrogen-bonded networks of fibrils melt on heating, whereas those formed through hydrophobic fibril-fibril interactions strengthen when warmed. The hSAFs are dual-peptide systems that gel only on mixing, which gives tight control over assembly. These properties raise possibilities for using the hSAFs as substrates in cell culture. We have tested this in comparison with the widely used Matrigel substrate, and demonstrate that, like Matrigel, hSAFs support both growth and differentiation of rat adrenal pheochromocytoma cells for sustained periods in culture.

Journal IssueDOI
TL;DR: The nested maps of science are online at .
Abstract: The decomposition of scientific literature into disciplinary and subdisciplinary structures is one of the core goals of scientometrics. How can we achieve a good decomposition? The ISI subject categories classify journals included in the Science Citation Index (SCI). The aggregated journal-journal citation matrix contained in the Journal Citation Reports can be aggregated on the basis of these categories. This leads to an asymmetrical matrix (citing versus cited) that is much more densely populated than the underlying matrix at the journal level. Exploratory factor analysis of the matrix of subject categories suggests a 14-factor solution. This solution could be interpreted as the disciplinary structure of science. The nested maps of science (corresponding to 14 factors, 172 categories, and 6,164 journals) are online at . Presumably, inaccuracies in the attribution of journals to the ISI subject categories average out so that the factor analysis reveals the main structures. The mapping of science could, therefore, be comprehensive and reliable on a large scale albeit imprecise in terms of the attribution of journals to the ISI subject categories. © 2009 Wiley Periodicals, Inc.

Posted Content
TL;DR: In this article, a conceptual framework that aims to capture interdisciplinarity in the wider sense of knowledge integration, by exploring the concepts of diversity and coherence, is proposed.
Abstract: The multidimensional character and inherent conflict with categorisation of interdisciplinarity makes its mapping and evaluation a challenging task. We propose a conceptual framework that aims to capture interdisciplinarity in the wider sense of knowledge integration, by exploring the concepts of diversity and coherence. Disciplinary diversity indicators are developed to describe the heterogeneity of a bibliometric set viewed from predefined categories, i.e. using a top-down approach that locates the set on the global map of science. Network coherence indicators are constructed to measure the intensity of similarity relations within a bibliometric set, i.e. using a bottom-up approach, which reveals the structural consistency of the publications network. We carry out case studies on individual articles in bionanoscience to illustrate how these two perspectives identify different aspects of interdisciplinarity: disciplinary diversity indicates the large-scale breadth of the knowledge base of a publication; network coherence reflects the novelty of its knowledge integration. We suggest that the combination of these two approaches may be useful for comparative studies of emergent scientific and technological fields, where new and controversial categorisations are accompanied by equally contested claims of novelty and interdisciplinarity.

Journal ArticleDOI
TL;DR: In this paper, the authors take stock of transition management implementation experience to date and discuss the critical issues it raises for long-term policy design, highlighting three critical issues: the politics of societal learning, contextual embedding of policy design and dynamics of the design process itself.
Abstract: Long-term policy is enjoying something of a come-back in connection with sustainable development. The current revival tries to avoid the pitfalls of an earlier generation of positivistic long-range planning and control approaches. Instead, this new generation of policy design emphasises reflexive governance concepts. These aim at inducing and navigating complex processes of socio-technical change by means of deliberation, probing and learning. A practical expression of this move that is attracting growing international attention amongst researchers and practitioners is the policy of ‘Transition Management’ (TM) in the Netherlands. This article takes stock of TM implementation experience to date and discusses the critical issues it raises for long-term policy design. The article provides a framework and synthesis for this Special Issue, which comprises articles that address a range of those issues in more depth. We highlight three critical issues: the politics of societal learning, contextual embedding of policy design and dynamics of the design process itself. This leads us to propose a view on policy design as a contested process of social innovation. Our conclusion considers implications for continued work on designing transition management in practice as well as the reflexive capacities of democratic politics.

Journal ArticleDOI
TL;DR: This work has demonstrated that synaptic terminals can individually set their neurotransmitter release probability dynamically through local feedback regulation, and this local tuning of transmission has important implications for current models of single-neuron computation.
Abstract: Information transfer at chemical synapses occurs when vesicles fuse with the plasma membrane and release neurotransmitter. This process is stochastic and its likelihood of occurrence is a crucial factor in the regulation of signal propagation in neuronal networks. The reliability of neurotransmitter release can be highly variable: experimental data from electrophysiological, molecular and imaging studies have demonstrated that synaptic terminals can individually set their neurotransmitter release probability dynamically through local feedback regulation. This local tuning of transmission has important implications for current models of single-neuron computation.

Journal ArticleDOI
TL;DR: The authors have the beginnings of a scientific understanding of creativity, an aspect of normal human intelligence not a special faculty granted to a tiny elite, and AI techniques underlie various types of computer art.
Abstract: Creativity isn’t magical. It’s an aspect of normal human intelligence, not a special faculty granted to a tiny elite. There are three forms: combinational, exploratory, and transformational. All three can be modeled by AI—in some cases, with impressive results. AI techniques underlie various types of computer art. Whether computers could “really” be creative isn’t a scientific question but a philosophical one, to which there’s no clear answer. But we do have the beginnings of a scientific understanding of creativity.

Journal ArticleDOI
TL;DR: It is considered how fungi that form symbiotic associations with plants interact with insect herbivores attacking the same plants, reflecting the influence of fungal and host genotype, fungal, host, and insect species, and environmental factors.
Abstract: We consider how fungi that form symbiotic associations with plants interact with insect herbivores attacking the same plants. Both endophytes and mycorrhizae have significant impacts on herbivores with which they are in relatively intimate contact, but weaker effects on those from which they are spatially separated. Generalist insects are usually adversely affected by the presence of endophytes and mycorrhizae, whereas specialist insects may often benefit. Effects on feeding guilds vary according to type of fungi; for example, aphids are often negatively affected by endophytes but respond positively to mycorrhizae, and leafchewers are usually negatively affected by both types of fungi. There is a strong taxonomic bias in the literature and many interactions remain little studied; laboratory studies predominate over field studies. Although some patterns emerge, there is a large amount of specificity and context dependency in the outcome of interactions, reflecting the influence of fungal and host genotype, fungal, host, and insect species, and environmental factors. Whereas some of the mechanisms underpinning these interactions are relatively well characterized, others remain unclear and await elucidation by molecular and metabolomic techniques.

Journal ArticleDOI
TL;DR: The authors argue that there are two crucial, but distinct, roles that communication could play in engaging the public in low carbon lifestyles: first, to facilitate public acceptance of regulation and second, to stimulate grass-roots action through affective and rational engagement with climate change.
Abstract: Climate communication approaches expend significant resources promoting attitudinal change, but research suggests that encouraging attitudinal change alone is unlikely to be effective. The link between an individual's attitudes and subsequent behavior is mediated by other influences, such as social norms and the “free-rider” effect. One way to engender mitigative behaviors would be to introduce regulation that forces green behavior, but government fears a resulting loss of precious political capital. Conversely, communication approaches that advocate individual, voluntary action ignore the social and structural impediments to behavior change. The authors argue that there are two crucial, but distinct, roles that communication could play in engaging the public in low carbon lifestyles: first, to facilitate public acceptance of regulation and second, to stimulate grass-roots action through affective and rational engagement with climate change. The authors also argue that using communication to stimulate demand for regulation may reconcile these “top-down” and “bottom-up” approaches.

Journal ArticleDOI
TL;DR: This paper developed a model and typology of policy regime change processes and outcomes following Thelen and others in arguing that complex policy mixes typically emerge through one or more of four processes, "drift", "conversion", "layering" and "replacement", and the expected outcomes of these different processes in terms of their ability to meet initial expectations are linked to the manner in which policy goals and means are (or are not) combined in a consistent, coherent and congruent fashion.
Abstract: Proposals to alter large-scale socio-technical systems through government actions in order to promote goals such as sustainability are highly uncertain policy projects. What is being proposed is the replacement of specific elements of existing policy ‘mixes’—the goals and means—by others, in the expectation of avoiding counterproductive or sub-optimal policy outcomes. While laudable, such efforts are fraught with risks; including the possibility of the creation of sub-optimal policy mixes or of failed reform efforts with resulting poor outcomes. This article develops a model and typology of policy regime change processes and outcomes following Thelen and others in arguing that complex policy mixes typically emerge through one or more of four processes, ‘drift’, ‘conversion’, ‘layering’ and ‘replacement’, and that the expected outcomes of these different processes in terms of their ability to meet initial expectations are linked to the manner in which policy goals and means are (or are not) combined in a consistent, coherent and congruent fashion. This propensity is illustrated through examination of the case of energy transition management as practiced in the Netherlands.

Journal ArticleDOI
TL;DR: As new media proliferate and the public's trust and engagement in science are influenced by industry involvement in academic research, an interdisciplinary workshop provides some recommendations to enhance science communication.
Abstract: As new media proliferate and the public's trust and engagement in science are influenced by industry involvement in academic research, an interdisciplinary workshop provides some recommendations to enhance science communication

Posted Content
TL;DR: The nested maps of science (corresponding to 14 factors, 172 categories, and 6,164 journals) are brought online and an analysis of interdisciplinary relations is pursued at three levels of aggregation using the newly added ISI subject category of "Nanoscience & nanotechnology".
Abstract: The ISI subject categories classify journals included in the Science Citation Index (SCI). The aggregated journal-journal citation matrix contained in the Journal Citation Reports can be aggregated on the basis of these categories. This leads to an asymmetrical transaction matrix (citing versus cited) which is much more densely populated than the underlying matrix at the journal level. Exploratory factor analysis leads us to opt for a fourteen-factor solution. This solution can easily be interpreted as the disciplinary structure of science. The nested maps of science (corresponding to 14 factors, 172 categories, and 6,164 journals) are brought online at this http URL An analysis of interdisciplinary relations is pursued at three levels of aggregation using the newly added ISI subject category of "Nanoscience & nanotechnology". The journal level provides the finer grained perspective. Errors in the attribution of journals to the ISI subject categories are averaged out so that the factor analysis can reveal the main structures. The mapping of science can, therefore, be comprehensive at the level of ISI subject categories.

Journal ArticleDOI
TL;DR: The authors found that cross-cultural variations in aging perceptions were associated with culture-level indicators of population aging, education levels, values, and national character stereotypes, and these associations were stronger for societal views on aging and perceptions of socioemotional changes than for perceptions of physical and cognitive changes.
Abstract: College students (N=3,435) in 26 cultures reported their perceptions of age-related changes in physical, cognitive, and socioemotional areas of functioning and rated societal views of aging within their culture. There was widespread cross-cultural consensus regarding the expected direction of aging trajectories with (a) perceived declines in societal views of aging, physical attractiveness, the ability to perform everyday tasks, and new learning; (b) perceived increases in wisdom, knowledge, and received respect; and (c) perceived stability in family authority and life satisfaction. Cross-cultural variations in aging perceptions were associated with culture-level indicators of population aging, education levels, values, and national character stereotypes. These associations were stronger for societal views on aging and perceptions of socioemotional changes than for perceptions of physical and cognitive changes. A consideration of culture-level variables also suggested that previously reported differences in aging perceptions between Asian and Western countries may be related to differences in population structure.