890 resultados para space and cinema
Resumo:
We present the discovery of four new transiting hot jupiters, detected mainly from SuperWASP-North and SOPHIE observations. These new planets, WASP-52b, WASP-58b, WASP-59b, and WASP-60b, have orbital periods ranging from 1.7 to 7.9 days, masses between 0.46 and 0.94 M_Jup, and radii between 0.73 and 1.49 R_Jup. Their G1 to K5 dwarf host stars have V magnitudes in the range 11.7-13.0. The depths of the transits are between 0.6 and 2.7%, depending on the target. With their large radii, WASP-52b and 58b are new cases of low-density, inflated planets, whereas WASP-59b is likely to have a large, dense core. WASP-60 shows shallow transits. In the case of WASP-52 we also detected the Rossiter-McLaughlin anomaly via time-resolved spectroscopy of a transit. We measured the sky-projected obliquity lambda = 24 (+17/-9) degrees, indicating that WASP-52b orbits in the same direction as its host star is rotating and that this prograde orbit is slightly misaligned with the stellar equator. These four new planetary systems increase our statistics on hot jupiters, and provide new targets for follow-up studies.
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The concept of space entered architectural history as late as 1893. Studies in art opened up the discussion, and it has been studied in various ways in architecture ever since. This article aims to instigate an additional reading to architectural history, one that is not supported by "isms" but based on space theories in the 20th century. Objectives of the article are to bring the concept of space and its changing paradigms to the attention of architectural researchers, to introduce a conceptual framework to classify and clarify theories of space, and to enrich the discussions on the 20th century architecture through theories that are beyond styles. The introduction of space in architecture will revolve around subject-object relationships, three-dimensionality and senses. Modern space will be discussed through concepts such as empathy, perception, abstraction, and geometry. A scientific approach will follow to study the concept of place through environment, event, behavior, and design methods. Finally, the research will look at contemporary approaches related to digitally supported space via concepts like reality-virtuality, mediated experience, and relationship with machines.
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This paper assesses the impact of UK devolution on social housing policy in Northern Ireland from 1999 until 2011, with a particular focus on the administration from May 2007 until April 2011, the first in which the elected elements of the process functioned for the entire period. Housing is one of the responsibilities of the Minister for Social Development. Northern Ireland has had a political commitment to the provision of good quality social housing for many years, both before and after the 1998 Good Friday/ Belfast Agreement and the establishment of the Northern Ireland Assembly and Executive in 1999.
The paper begins with an analysis of factors contributing to policy difference within the United Kingdom under the 1999 devolution settlement, noting that these factors may contribute either to policy convergence or divergence between the four UK jurisdictions. There follow reflections on the concept of ‘policy ownership’ in multi-level states and the benefits of this analytical approach for consideration of housing policy under UK devolution. A review of social housing policy since 1999 is followed by discussion of three key issues from the 2007-11 administration: the governance of social housing; the procurement of new social housing; and improving access to shared space and a shared future. The paper concludes that, in Northern Ireland, the 2007-11 administration marked a transition between a technocratic past and the future policy ownership of the social housing policy field by locally elected politicians. Reflections on wider implications for UK social policy, for UK devolution, and for the complex governance structures of devolved and federal states are also included.
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This article examines the role of tourism as a motive and mechanism for change in contemporary cities, considering how the theming of space with tourists in mind necessarily involves other kinds of spatial and social transformation, and asking what role actual and hypothetical tourists play in local contests over space and representation. Looking closely at Belfast’s Gaeltacht Quarter provides an insight into how global fashions in place marketing, tourism and minority language promotion intersect with the particularities of areas to which they are applied. This paper argues that the superficially value-neutral, internationally recognisable language of economic
development can be used both as a means of transcending, and a means of
strategically negotiating, intense struggles over space, identity and status.
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This paper considers the recent proliferation of Belfast‘s =Quarters‘ as part of global trends towards the theming of city space, and as a response to the particular situation of Belfast at the beginning of the twenty-first century. It focuses on the Gaeltacht Quarter, a site that exemplifies the difficulty of applying the internationally popular model of cultural difference as a resource for the production of tourist revenue to the context of contested cities. The =quartering‘ of Belfast is represented as a response to post-industrial and post-conflict predicaments this city shares with many others. I consider how the urban context is sometimes exploited, as in exhortations to investors and tourists to contribute to Belfast‘s transformation from =a city of two halves‘ to =a city of seven quarters‘, and sometimes obscured, as in the recent re-invention of the Quarters as remnants of the city‘s distant past.
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This is a special 'Architecture and Cinema' dossier edited for Arredamento, with several articles by different authors. Each article analyses spaces and cities represented in one particular feature film. The introductory essay is also by the dossier editor.
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When examining complex problems, such as the folding of proteins, coarse grained descriptions of the system drive our investigation and help us to rationalize the results. Oftentimes collective variables (CVs), derived through some chemical intuition about the process of interest, serve this purpose. Because finding these CVs is the most difficult part of any investigation, we recently developed a dimensionality reduction algorithm, sketch-map, that can be used to build a low-dimensional map of a phase space of high-dimensionality. In this paper we discuss how these machine-generated CVs can be used to accelerate the exploration of phase space and to reconstruct free-energy landscapes. To do so, we develop a formalism in which high-dimensional configurations are no longer represented by low-dimensional position vectors. Instead, for each configuration we calculate a probability distribution, which has a domain that encompasses the entirety of the low-dimensional space. To construct a biasing potential, we exploit an analogy with metadynamics and use the trajectory to adaptively construct a repulsive, history-dependent bias from the distributions that correspond to the previously visited configurations. This potential forces the system to explore more of phase space by making it desirable to adopt configurations whose distributions do not overlap with the bias. We apply this algorithm to a small model protein and succeed in reproducing the free-energy surface that we obtain from a parallel tempering calculation.
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The relevance of European Union (EU) cross-border cooperation for European border con?ict amelioration may be questioned in the contemporary global climate of threat and insecurity posed by forces of ’dark globalisation’. In any case, empirical evidence exposes the limitations of cross-border cooperation in advancing con?ict amelioration in some border regions. Nevertheless, in an enlarged EU which encompasses Central and East European member states and reaches out to neighbouring states through cross-border cooperation initiatives, the number of real and potential border con?icts with which it is concerned has risen exponentially. Fortunately, there are cases of EU ’borderscapes’ that have adopted a cross-border ’peace-building from below’ approach leading to border con?ict amelioration. Unfortunately, countervailing pressures on EU cross-border cooperation from border security regimes (principally Schengen), the Eurozone crisis, EU budgetary constraints, the conceptualisation of ’Europe as Empire’, and the possible recon?guration of the EU itself compromises this approach. Therefore, the path of European integration may well shift from one of inter-state peace-building and regional crossborder cooperation after the Second World War, to border con?ict and coercion in constituting and reconstituting state borders after the recon?guration of the EU.
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The sectarian geography of Northern Ireland, whereby the majority of the population live in areas predominated by one religion or the other, is typically assumed to straightforwardly reflect the territorial identities of local residents. This conflation of place and identity neglects the role of place in actively shaping and changing the behaviours occurring within them. The present paper uses new developments in the area of social psychology to examine three case studies of place identity in Northern Ireland and explore the possibilities for change. A large scale survey of the display of flags and emblems across Northern Ireland demonstrates the extent of visible ter-ritorialisation, but also the relationship between understandings of space and the acceptability of these displays. Secondly, analysis of interviews with the Orange Or-der and nationalist residents concerning the Drumcree dispute illustrates how differ-ent constructions of space are used to claim and counterclaim rights to display iden-tity. Finally analysis of media and interview accounts of the St Patrick’s Day event in Belfast illustrate how new understandings of shared space can negate territorial identities and facilitate coexistence in the same place and facilitate good relations.
Resumo:
Bulk paleosol samples collected from a Middle to Early Miocene moraine in the New Mountain area of the Dry Valleys, Antarctica, yielded Coleoptera exoskeletons and occasional endoskeletons showing considerable diagenetic effects along with several species of bacteria, all lodged in a dry-frozen but salt-rich horizon at shallow depth to the land surface. The till is at the older end of a chronologic sequence of glacial deposits, thought to have been deposited before the transition from wet-based to cold-based ice (similar to 15 Ma), and hence, entirely weathered in contact with the subaerial atmosphere. It is possible, though not absolutely verifiable, that the skeletons date from this early stage of emplacement having undergone modifications whenever light snowmelt occurred or salt concentrations lowered the freezing temperature to maintain water as liquid. Correlation of the Coleoptera species with cultured bacteria in the sample and the likelihood of co-habitation with Beauveria bassiani found in two adjacent, although younger paleosols, leads to new questions about the antiquity of the Coleoptera and the source of N and glucose from chitinase derived from the insects. The skeletons in the 831 section may date close to the oldest preserved chitin (Oligocene) yet found on Earth. While harsh Martian conditions make it seemingly intolerable for complex, multicellular organisms such as insects to exist in the near-surface and subaerially, life within similar cold, dry paleosol microenvironments (Cryosols) of Antarctica point to life potential for the Red Planet, especially when considering the relatively diverse microbe (bacteria and fungi) population. (C) 2011 Elsevier Ltd. All rights reserved.
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This paper examines the experiences of children in post-conflict Belfast as peace and social change afford new opportunities at the same time as they regulate behaviours and spatial practices. Theoretically and empirically it draws on the concept of environmental affordances in order to map the experiences of 11-year-old children in separate inner-city segregated and middle-class communities. Whilst the recession has affected the pace of urban restructuring, children in the expanding mixed and largely middleclass city extract multiple advantages from their area in ways not available to segregated communities. The paper concludes by highlighting the implications for effective listening strategies in the management of divided communities. © 2011 Taylor & Francis.
Resumo:
We report the discovery of two transiting hot Jupiters, WASP-65b (Mpl = 1.55 ± 0.16 MJ; Rpl = 1.11 ± 0.06 RJ), and WASP-75b (Mpl = 1.07 ± 0.05 MJ; Rpl = 1.27 ± 0.05 RJ). They orbit their host star every ∼2.311, and ∼2.484 days, respectively. The planet host WASP-65 is a G6 star (Teff = 5600 K, [Fe/H] = −0.07 ± 0.07, age 8 Gyr); WASP-75 is an F9 star (Teff = 6100 K, [Fe/H] = 0.07 ± 0.09, age ∼ 3 Gyr). WASP-65b is one of the densest known exoplanets in the mass range 0.1 and 2.0 MJ (ρpl = 1.13 ± 0.08 ρJ), a mass range where a large fraction of planets are found to be inflated with respect to theoretical planet models. WASP-65b is one of only a handful of planets with masses of ∼1.5 MJ, a mass regime surprisingly underrepresented among the currently known hot Jupiters. The radius of WASP-75b is slightly inflated (10%) as compared to theoretical planet models with no core, and has a density similar to that of Saturn (ρpl = 0.52 ± 0.06 ρJ). Key words. planetary systems – stars: individual:
Resumo:
Super-luminous supernovae have a tendency to occur in faint host galaxies which are likely to have low mass and low metallicity. While these extremely luminous explosions have been observed from z=0.1 to 1.55, the closest explosions allow more detailed investigations of their host galaxies. We present a detailed analysis of the host galaxy of SN 2010gx (z=0.23), one of the best studied super-luminous type Ic supernovae. The host is a dwarf galaxy (M_g=-17.42+/-0.17) with a high specific star formation rate. It has a remarkably low metallicity of 12+log(O/H)=7.5+/-0.1 dex as determined from the detection of the [OIII] 4363 Angs line. This is the first reliable metallicity determination of a super-luminous stripped-envelope supernova host. We collected deep multi-epoch imaging with Gemini + GMOS between 240-560 days after explosion to search for any sign of radioactive nickel-56, which might provide further insights on the explosion mechanism and the progenitor's nature. We reach griz magnitudes of m_AB~26, but do not detect SN 2010gx at these epochs. The limit implies that any nickel-56 production was similar to or below that of SN 1998bw (a luminous type Ic SN that produced around 0.4 M_sun of nickel-56). The low volumetric rates of these supernovae (~10^-4 of the core-collapse population) could be qualitatively matched if the explosion mechanism requires a combination of low-metallicity (below 0.2 Z_sun), high progenitor mass (>60 M_sun) and high rotation rate (fastest 10% of rotators).
Resumo:
We cross match the GALEX and Kepler surveys to create a unique dataset with both ultraviolet (UV) measurements and highly precise photometric variability measurements in the visible light spectrum. As stellar activity is driven by magnetic field modulations, we have used UV emission from the magnetically heated gas in the stellar atmosphere to serve as our proxy for the more well-known stellar activity indicator, R' HK . The R' HK approximations were in turn used to estimate the level of astrophysical noise expected in radial velocity (RV) measurements and these were then searched for correlations with photometric variability. We find significant scatter in our attempts to estimate RV noise for magnetically active stars, which we attribute to variations in the phase and strength of the stellar magnetic cycle that drives the activity of these targets. However, for stars we deem to be magnetically quiet, we do find a clear correlation between photometric variability and estimated levels of RV noise (with variability up to ~10 m s–1). We conclude that for these quiet stars, we can use photometric measurements as a proxy to estimate the RV noise expected. As a result, the procedure outlined in this paper may help select targets best-suited for RV follow-up necessary for planet confirmation.