Search results for " space"
showing 10 items of 4562 documents
Self-assembly of 2,8,14,20-tetraisobutyl-5,11,17,23-tetrahydroxyresorc[4]arene
1999
We report herein the observation of a hexameric structure of a hydroxyresorc[4]arene in the solid state, enclosing a large interior space. This artificial molecular container is stabilized only by hydrogen bonds. The tendency to form aggregates in solution is demonstrated mainly by means of ESI-MS methods.
Hyperbolic spaces
2008
Spatiocolorimetric neighborhood hypergraph and Image Processing Applications : Noise Removal and Edge Detection.
2004
In this document, we are interested in image modeling by the means of the hypergraph theory. Our contribution is essentially centered on the determination of the properties resulting from this theory and on the analysis from their adequacy with image problems, particularly edge and noise detection.First, we study the image spatiocolorimetric neighborhood hypergraph representation. Three representations are respectively presented incorporating global properties, local properties and similarity functions. Then, we use the hypergraph properties generated by the representation in order to define the structural models of noise and edge. This enables us to deduce the algorithms of noise suppressi…
Figure del contagio. Dalle topografie mediche al contact tracing: trasformazioni nell’architettura e nel paesaggio urbano
2021
Ita_Il tracciamento del contagio, fra le più efficaci forme globali di difesa dal coronavirus, viene ripercorso mettendo in luce il rapporto fra pensiero architettonico e spazio delle epidemie negli ultimi due secoli. La relazione fra la diffusione delle malattie e le forme del costruito è stata infatti compresa nella seconda metà dell’Ottocento attraverso le mappature tematiche, secondo metodi ancora oggi in evoluzione. A partire dalle topografie mediche comparse per la prima volta in Francia nel XIX secolo, interpolate con le intuizioni di J. Snow sulla base delle mappe da lui elaborate nello stesso periodo in Inghilterra, si evidenziano i modi di formazione di un regime di sapere teso fr…
Formaciones sociales y opresión en Marx
2018
The text explains the difference between Marx?s concept of «oppression» and others as «coercion» by Durkheim or «domination» by Weber. The article then establishes, in a methodical way, the centrality of a passage from Capital, in which three different theories on «oppression» appear. It?s explained that two of them are rather a philosophical antinomy. The other, relative to the heteronomy of social time, can be completed by defining the heteronomy of social space, which gives it analytical virtuality. Some examples are given.
Rigenerazione greenbased degli inbetween spaces
2015
Agire sulle aree urbane interstiziali (sovente in quartieri periferici) per rispondere alla domanda di una migliore vivibilità delle città, si configura quale interessante tema di approfondimento alla cui base deve esserci la conoscenza delle situazioni in essere e delle loro refluenze sullo spazio fisico e sociale. Si tratta, infatti, di spazi aperti abbandonati, sottoutilizzati, considerati insicuri ma che hanno, in nuce, le potenzialità di risorse per la rigenerazione fisica, sociale, ambientale e- perché no- economica, non solo dei quartieri ma della città in toto. Gli interstizi urbani- che in gran parte connotano le periferie nate nel dopoguerra, non solo delle metropoli ma anche dell…
Inequality of Spanish household expenditure for the 2006-2016 period- are we converging?
2019
The depth and persistence of the Great Recession that started in 2008 had a considerable impact on income distribution and inequality. Therefore, studies of living standards and evolution of income inequality are trend topics nowadays. Our goal was to estimate the impact of the economic crises on household expenditure and the trends and evolution of regional inequality. We applied our analysis to the Spanish case based on Household Budget Survey data from Instituto Nacional de Estadística (INE, the National Statistics Institute) and the period of eleven years between 2006 and 2016. A model that showed good results in modelling income was the biparametric gamma model, which is further very u…
Egalitarny model kształcenia w perspektywie społeczeństwa wiedzy
2016
Dynamiczne przemiany globalizacyjne i współczesna, wszechobecna nowa kultura medialna wywierają duży wpływ na systemy kształcenia. Istniejące w Polsce i krajach ościennych rozwiązania oparto na tradycyjnym modelu kształcenia, kładąc nacisk na jego cechy egalitarne. Wykorzystanie w przestrzeni edukacyjnej nowych narzędzi technologii informacyjno-komunikacyjnych w praktyce utrwala źle pojęty egalitaryzm kształcenia i nie eliminuje związanych z tym zagrożeń. Efektywne dostosowanie się do wyzwań społeczeństwa wiedzy wymagać będzie wykorzystania wwiększym stopniu modeli elitarnych.
On modified α-ϕ-fuzzy contractive mappings and an application to integral equations
2016
Abstract We introduce the notion of a modified α-ϕ-fuzzy contractive mapping and prove some results in fuzzy metric spaces for such kind of mappings. The theorems presented provide a generalization of some interesting results in the literature. Two examples and an application to integral equations are given to illustrate the usability of our theory.
The Blog, the Blogger and the Other on the Net
2008
This work describes a qualitative research, still in progress, about blogging. This experience is fully linked to the concept of "social presence": users feel "to be there" in the virtual environment. From a brief review of researches about blogging, we propose a work that, through a semi-structured interview (submitted on line), could analyze the mental representations of bloggers. Moreover, we have the purpose to read these impressions through a key pattern of interactions between blog, blogger and other users. The primary goal of this study, still preparatory, is to explore the psychological means of blogging.