Many Places (many + place)

Distribution by Scientific Domains


Selected Abstracts


Free-form sketching with variational implicit surfaces

COMPUTER GRAPHICS FORUM, Issue 3 2002
Olga Karpenko
With the advent of sketch-based methods for shape construction, there's a new degree of power available in the rapid creation of approximate shapes. Sketch [Zeleznik, 1996] showed how a gesture-based modeler could be used to simplify conventional CSG-like shape creation. Teddy [Igarashi, 1999] extended this to more free-form models, getting much of its power from its "inflation" operation (which converted a simple closed curve in the plane into a 3D shape whose silhouette, from the current point of view, was that curve on the view plane) and from an elegant collection of gestures for attaching additional parts to a shape, cutting a shape, and deforming it. But despite the powerful collection of tools in Teddy, the underlying polygonal representation of shapes intrudes on the results in many places. In this paper, we discuss our preliminary efforts at using variational implicit surfaces [Turk, 2000] as a representation in a free-form modeler. We also discuss the implementation of several operations within this context, and a collection of user-interaction elements that work well together to make modeling interesting hierarchies simple. These include "stroke inflation" via implicit functions, blob-merging, automatic hierarchy construction, and local surface modification via silhouette oversketching. We demonstrate our results by creating several models. Categories and Subject Descriptors (according to ACM CCS): I.3.5 [Computer Graphics]: Modeling packages I.3.6 [Computer Graphics]: Interaction techniques [source]


How ideology shapes the evidence and the policy: what do we know about cannabis use and what should we do?

ADDICTION, Issue 8 2010
John Macleod
ABSTRACT In the United Kingdom, as in many places, cannabis use is considered substantially within a criminal justice rather than a public health paradigm with prevention policy embodied in the Misuse of Drugs Act. In 2002 the maximum custodial sentence tariff for cannabis possession under the Act was reduced from 5 to 2 years. Vigorous and vociferous public debate followed this decision, centred principally on the question of whether cannabis use caused schizophrenia. It was suggested that new and compelling evidence supporting this hypothesis had emerged since the re-classification decision was made, meaning that the decision should be reconsidered. The re-classification decision was reversed in 2008. We consider whether the strength of evidence on the psychological harms of cannabis has changed substantially and discuss the factors that may have influenced recent public discourse and policy decisions. We also consider evidence for other harms of cannabis use and public health implications of preventing cannabis use. We conclude that the strongest evidence of a possible causal relation between cannabis use and schizophrenia emerged more than 20 years ago and that the strength of more recent evidence may have been overstated,for a number of possible reasons. We also conclude that cannabis use is almost certainly harmful, mainly because of its intimate relation to tobacco use. The most rational policy on cannabis from a public health perspective would seem to be one able to achieve the benefit of reduced use in the population while minimizing social and other costs of the policy itself. Prohibition, whatever the sentence tariff associated with it, seems unlikely to fulfil these criteria. [source]


Wide-area estimates of saltcedar (Tamarix spp.) evapotranspiration on the lower Colorado River measured by heat balance and remote sensing methods,,

ECOHYDROLOGY, Issue 1 2009
Pamela L. Nagler
Abstract In many places along the lower Colorado River, saltcedar (Tamarix spp) has replaced the native shrubs and trees, including arrowweed, mesquite, cottonwood and willows. Some have advocated that by removing saltcedar, we could save water and create environments more favourable to these native species. To test these assumptions we compared sap flux measurements of water used by native species in contrast to saltcedar, and compared soil salinity, ground water depth and soil moisture across a gradient of 200,1500 m from the river's edge on a floodplain terrace at Cibola National Wildlife Refuge (CNWR). We found that the fraction of land covered (fc) with vegetation in 2005,2007 was similar to that occupied by native vegetation in 1938 using satellite-derived estimates and reprocessed aerial photographs scaled to comparable spatial resolutions (3,4 m). We converted fc to estimates of leaf area index (LAI) through point sampling and destructive analyses (r2 = 0·82). Saltcedar LAI averaged 2·54 with an fc of 0·80, and reached a maximum of 3·7 with an fc of 0·95. The ranges in fc and LAI are similar to those reported for native vegetation elsewhere and from the 1938 photographs over the study site. On-site measurements of water use and soil and aquifer properties confirmed that although saltcedar grows in areas where salinity has increased much better than native shrubs and trees, rates of transpiration are similar. Annual water use over CNWR was about 1·15 m year,1. Copyright © 2008 John Wiley & Sons, Ltd. [source]


,Out of Hospital': a scoping study of services for carers of people being discharged from hospital

HEALTH & SOCIAL CARE IN THE COMMUNITY, Issue 4 2009
Rachel Borthwick BSc (Hons) RM RN
Abstract Successive government policies have highlighted the need to inform and involve carers fully in the hospital discharge process. However, some research suggests that many carers feel insufficiently involved and unsupported in this process. This paper summarises a scoping review to identify what the UK literature tells us about the service provision for carers, and its effectiveness, around the time of hospital discharge of the care recipient, and also describes a mapping exercise of the work currently being done by Princess Royal Trust for Carers Centres in England to support carers around the time of hospital discharge. The restriction to UK literature was dictated by the nature of the project; a modest review carried out for a UK-based voluntary sector organization. Fifty-three documents were reviewed, of which 19 papers (representing 17 studies) were reporting on primary research. As only five of these studies actually involved an intervention, it appears there is very little research from the UK which evaluates specific interventions to support carers around the time of hospital discharge of the care recipient. While the mapping exercise showed that in some areas there are services and/or initiatives in place which have been designed to improve the process of discharge for carers, in many places there is still a gap between what policy and research suggest should happen and what actually happens to carers at this time. Even where services and initiatives to support carers through the discharge process exist, there is only limited evidence from research or evaluation to demonstrate their impact on the carer's experience. Further research, both quantitative and qualitative, is required to address these areas and enable commissioners, providers and carers' organizations to work together towards a service in which patients and carers alike receive the support and help they need at this significant time of transition. [source]


The New Mega-Projects: Genesis and Impacts

INTERNATIONAL JOURNAL OF URBAN AND REGIONAL RESEARCH, Issue 4 2008
FERNANDO DIAZ ORUETA
Abstract Critiques of urban renewal and large-scale developments were prominent in the period 1960,80. In particular, they emphasized the negative environmental and social consequences of these schemes and especially attacked them for displacing low-income and ethnically different populations. In the 1980s and 1990s, we saw a decline in such projects in many places, responding to popular protest and intellectual dissent, along with a new emphasis on preservation. More recently, however, we see the revival of mega-projects, often connected with tourism and sports development and incorporating the designs of world-famous architects. Frequently these are on landfill or abandoned industrial sites. The symposium for which this is an introduction shows the growing convergence of North American and European projects. This convergence is visible in their physical form, their financing, and in the role played by the state in a world marked by neoliberalism. At the same time, the new projects do display a greater environmental sensitivity and commitment to urbanity than the modernist schemes of an earlier epoch. Résumé Dans la période 1960,1980, les critiques sur les aménagements à grande échelle et les grandes rénovations urbaines étaient fréquentes. Elles soulignaient notamment les conséquences environnementales et sociales néfastes de ces programmes, en leur reprochant en particulier de déplacer les populations à faible revenu ou d'appartenance ethnique différente. Dans les années 1980 et 1990, ces projets se sont faits plus rares dans bien des endroits, répondant à la contestation populaire et au désaccord des intellectuels, parallèlement à une préoccupation nouvelle pour la préservation. Dernièrement, pourtant, les mégaprojets ont réapparu, souvent associés à un aménagement touristique ou sportif et intégrant des créations d'architectes de renommée mondiale. Ils se situent fréquemment sur le site d'anciennes décharges ou usines abandonnées. Le symposium dont ce texte sert d'introduction montre la convergence croissante des projets nord-américains et européens, convergence que l'on constate dans leur forme physique, leur financement et dans le rôle que joue l'État dans un monde empreint de néolibéralisme. En même temps, les nouveaux projets affichent une sensibilitéà l'environnement et un engagement vis-à-vis de l'urbanité plus marqués que les programmes modernistes antérieurs. [source]


Becoming American/Becoming New Yorkers: Immigrant Incorporation in a Majority Minority City,

INTERNATIONAL MIGRATION REVIEW, Issue 4 2002
Philip Kasinitz
Many observers have noted that immigrants to the United States are highly concentrated in the largest metropolitan areas of a relatively few states. Though immigrants diffused into many places that had previously seen relatively few immigrants during the 1990s, as of the 2000 census, 77 percent of the nation's 31.1 million foreign born residents still lived in six states , California, New York, Texas, Florida, New Jersey, and Illinois. According to the 2000 census, the two largest metropolitan areas, Los Angeles and New York, accounted for one third of all immigrants (http://www.census.gov/Press-Release/www/2002/demoprofiles.html). While immigrants moved into many new areas during the 1990s, making the challenge of incorporating their children a national issue, their concentration in our largest cities remained pronounced. [source]


A vision from the President of the Council

MUSEUM INTERNATIONAL, Issue 3 2009
E. Blaine Cliver
Fifty-three years ago a proposal was made to create an inter-governmental centre for the study and improvement of methods for conserving and restoring the cultural heritage of the world. In 1959 this agreement materialized as the International Centre for the Study of the Preservation and Restoration of Cultural Property, an inter-governmental organization located in Rome. Now called ICCROM, it has grown to become the premier international centre for conservation, training and information in cultural heritage. Over the past five decades ICCROM has grown and, in so doing, has evolved into the institution we have today. In this process of evolution ICCROM has continued to maintain its standards, though changing to meet the new needs of a diverse world community. Courses are now taught in many places around the globe, some of them specially developed for specific regions. However, ICCROM must adjust to the changing needs and challenges, especially financial ones, if it is to remain meaningful in today's heritage community. [source]


Criminal justice, cultural justice: The limits of liberalism and the pragmatics of difference in the new south africa

AMERICAN ETHNOLOGIST, Issue 2 2004
John L. Comaroff
ABSTRACT What are the limits of liberalism in accommodating the growing demands of difference? Can a Euromodernist nation-state, founded on One Law, infuse itself with another, with an African jurisprudence? And how is it to deal with cultural practices deemed "dangerous" by the canons of enlightenment reason? These questions are especially urgent in postcolonies like South Africa, with highly diverse populations whose traditional ways and means are accorded constitutional protection. Here we examine how South Africans are dealing with such "dangerous" practices in an era in which their nation is becoming ever more policultural; how, in the process, an Afromodernity is taking organic shape in the interstices between new democratic institutions and the kingdom of custom; how the confrontation between Culture, in the upper case, and a state founded on liberal universalism is beginning to reconfigure the political landscape of this postcolony,as it is, we argue, in many places across the planet. [source]


Smith's Sentiments (1759) and Wright's Passions (1601): the beginnings of sociology

THE BRITISH JOURNAL OF SOCIOLOGY, Issue 2 2005
Jack Barbalet
Abstract Treatments of sources of Adam Smith's sociological theory of the self and associated ideas in The Theory of Moral Sentiments typically refer to classical antecedents or the work of his teacher Francis Hutcheson or his contemporary David Hume. During the seventeenth century, however, many books on the passions were published in London that arguably constitute an important but neglected source of Smith's treatment of moral sentiments. These works are largely forgotten today but at the time were widely read. They are not philosophical, partly devotional and predominantly psychological. Although Smith does not refer to these works his argument resembles theirs in many places. The importance of the seventeenth-century books on the passions, apart from their role in the history of psychology, is their bearing on contemporary economic practices. In this paper the connections between Smith and one of these books, Thomas Wright's The Passions of the Minde in Generall, are indicated. [source]


Geographies of the financial crisis

AREA, Issue 1 2009
Manuel Aalbers
Real estate is, by definition, local as it is spatially fixed. Mortgage lending, however, has developed from a local to a national market and is increasingly a global market today. An understanding of the financial crisis is ultimately a spatialised understanding of the linkages between local and global. This article looks at the geographies of the mortgage crisis and credit crunch and asks the question: how are different places affected by the crisis? The article looks at different states, different cities, different neighbourhoods and different financial centres. Investors in many places had invested in residential mortgage backed securities and have seen their value drop. Housing bubbles, faltering economies and regulation together have shaped the geography of the financial crisis on the state and city level in the US. Subprime and predatory lending have affected low-income and minority communities more than others and we therefore not only see a concentration of foreclosures in certain cities, but also in certain neighbourhoods. On an international level, the long-term economical and political consequences of this are still mostly unknown, but it is clear that some financial centres in Asia (including the Middle East) will become more important now that globalisation is coming full circle. This article does not present new empirical research, but brings together work from different literatures that all in some way have a specific angle on the financial crisis. The aim of this article is to make the geographical dimensions of the financial crisis understandable to geographers that are not specialists in all , or even any , of these literatures, so that they can comprehend the spatialisation of this crisis. [source]


Hypermelanocytic guttate and macular segmental hypomelanosis

BRITISH JOURNAL OF DERMATOLOGY, Issue 3 2004
W. Westerhof
Summary We report two sisters, 27 and 30 years of age, with a cutaneous pigmentary anomaly, which seems to be a new entity. At the age of 26 years the elder sister developed an asymptomatic and persistent rash consisting of discrete, grouped, round to oval, guttate and nummular, hypopigmented macules, 0·2,5 cm in diameter. The distribution of the lesions was unilateral. They were located on the right side of the thorax with a moderately sharp demarcation in the mid-line and ran in a segmental distribution over the right arm, hand and fingers. Microscopic examination of lesional skin scrapings was negative for fungi. Examination with Wood's light accentuated the lesions from the surrounding normal skin. The younger sister had experienced identical, mostly guttate, skin lesions for many years, which at examination were distributed on all extremities and buttocks, and to a lesser degree on the trunk, but here in a segmental distribution. Histological examination (Masson,Fontana staining) of lesional skin of both sisters was identical. A slightly thinned epidermis and a marked decrease in pigmentation of the epidermal basal layer was seen. Electron microscopic examination of lesional skin showed an overall linear increase of morphologically and cytologically normal melanocytes just above the epidermal basal membrane. At many places the density of melanocytes was so high that the keratinocytes were displaced from the basal layer. The melanocytic dendrites extended into the suprabasal layer. The keratinocytes of lesional skin showed a decreased number of melanosomes. It is paradoxical that a hypomelanotic macule shows a histological picture of an increase in normal functioning melanocytes. In all probability a deficient melanosome transfer is responsible for this unexpected phenomenon. [source]