9,138 research outputs found
Co-designing paintings on the walls : "livecolor colorinhabiting" a creation of affection and hope for the near future
LiveColour Colourinhabiting, is the case study of my PhD in Design, under the theme âCollaborative Paintings in Residential Facades, and is the name of the action taking place in the SĂŁo CristĂłvĂŁo village, Alentejo, Portugal, writ large on residential facades, that tells a story in pictures from a local worldview, and conveys a message of hope, (in participantâs own words). The research indicates that, beyond the local participation and empowerment that such process engenders, it also satisfies an individualâs need for affection, identity and creativity by exploring the relationship between each resident and her creation of own public space. This paper contemplates also the designer´s role as a catalyst for questioning personal and collective values, their substance and expression. The case study has contributed to the creation of a future culture, promoting design as both a discipline of inner development and generator of social capital.info:eu-repo/semantics/publishedVersio
A reassessment of Argentina´s GHG proposed target
At the time of Argentina´s greenhouse gases emissions reduction voluntary commitment, most of the articles on intensity targets had not been published. The aim of this paper is to (re)discuss briefly the proposal made by Argentina taking into account that literature. To justify the adopted target form and stringency, we compare fixed and dynamic targets in terms of the likelihood of âhot airâ, the relationship between allowed emissions and GDP, the link between abatement and GDP, and outcomes´ dispersion. But, the assumptions implicit in the design of the target may change those properties. We show how the BAU scenario taken as reference and the level of emissions reduction affects targets´ design and characteristics. Finally, considering different emissions projections, we perform a comparison between allowed emissions and projected ones during the first half commitment period (2008-2010), concluding that compliance with the commitment depends on the data source used in the calculations.climate change, intensity targets, uncertainty, Argentina
Sub-10 nm colloidal lithography for integrated spin-photo-electronic devices
Colloidal lithography [1] is how patterns are reproduced in a variety of
natural systems and is used more and more as an efficient fabrication tool in
bio-, opto-, and nano-technology. Nanoparticles in the colloid are made to form
a mask on a given material surface, which can then be transferred via etching
into nano-structures of various sizes, shapes, and patterns [2,3]. Such
nanostructures can be used in biology for detecting proteins [4] and DNA [5,6],
for producing artificial crystals in photonics [7,8] and GHz oscillators in
spin-electronics [9-14]. Scaling of colloidal patterning down to 10-nm and
below, dimensions comparable or smaller than the main relaxation lengths in the
relevant materials, including metals, is expected to enable a variety of new
ballistic transport and photonic devices, such as spin-flip THz lasers [15]. In
this work we extend the practice of colloidal lithography to producing
large-area, near-ballistic-injection, sub-10 nm point-contact arrays and
demonstrate their integration in to spin-photo-electronic devices.Comment: 15 pages, 5 figure
Vanadium catalyzed oxidation with hydrogen peroxide
Vanadium peroxides are known as very effective oxidants af different organic and inorganic substrates. In this short account reactivity, structural and mechanistic studies concerning the behaviour of peroxovanadates toward a number of different substrates are collected. Homogeneous and two-phases systems are presented, in addition, interesting synthetic results obtained with the use of ionic liquids as reaction media are also presented
Track structure characterization and its link to radiobiology
Within the Italian project MITRA (MIcrodosimetry and TRAck structure), funded by the Italian Istituto Nazionale di Fisica Nucleare (INFN), and the EMRP Joint Research Project "BioQuaRT" (Biologically Weighted Quantities in Radiotherapy), experiments have been carried out at the TandemâAlpi accelerator facility of Legnaro National Laboratories (LNL), in which the frequency distribution of the number of ionisations produced by proton and carbon ion beams of given energy was measured with the PTB Ion Counter and the LNL StarTrack Counter. Descriptors of the track structure can be derived from these distribution; in particular, the first moment M1, representing the mean number of ionisations produced in the target volume, and the cumulative probabilities Fk of measuring cluster sizes ν ⼠k. Experimental radiobiological data have been compared with nanodosimetric quantities derived from measured ionisation-cluster size distributions. It was found that the cumulative probabilities Fk as a function of M1 behave in the same way as the inactivation cross sections as a function of LET, first increasing with increasing values of M1 and then showing a saturation effect. A comparison of Fk and radiobiological quantities is presented and discussed
Vanadium and molybdenum peroxides: synthesis and catalytic activity in oxidation reactions
Catalysis by transition metal ions in oxidation reactions with hydrogen peroxide and alkyl hydroperoxides is a leading topic in the pursuit of more sustainable and selective processes, to obtain compounds with high added value. The most recent achievements concerning the synthesis and characterization, as well as the key aspects of reactivity, of V(v) and Mo(vi) peroxo complexes have been collected here
Symmetry reductions of a particular set of equations of associativity in twodimensional topological field theory
The WDVV equations of associativity arising in twodimensional topological
field theory can be represented, in the simplest nontrivial case, by a single
third order equation of the Monge-Ampe`re type. By investigating its Lie point
symmetries, we reduce it to various nonlinear ordinary differential equations,
and we obtain several new explicit solutions.Comment: 10 pages, Latex, to appear in J. Phys. A: Math. Gen. 200
GreenPhylDB: phylogenomic resources for comparative and functional genomics in plants
Poster presented at 9th PlantGEM 2011. Istanbul (Turkey), 4-7 May 201
Completeness of the cubic and quartic H\'enon-Heiles Hamiltonians
The quartic H\'enon-Heiles Hamiltonian passes the Painlev\'e test for
only four sets of values of the constants. Only one of these, identical to the
traveling wave reduction of the Manakov system, has been explicitly integrated
(Wojciechowski, 1985), while the three others are not yet integrated in the
generic case . We integrate them by building
a birational transformation to two fourth order first degree equations in the
classification (Cosgrove, 2000) of such polynomial equations which possess the
Painlev\'e property. This transformation involves the stationary reduction of
various partial differential equations (PDEs). The result is the same as for
the three cubic H\'enon-Heiles Hamiltonians, namely, in all four quartic cases,
a general solution which is meromorphic and hyperelliptic with genus two. As a
consequence, no additional autonomous term can be added to either the cubic or
the quartic Hamiltonians without destroying the Painlev\'e integrability
(completeness property).Comment: 10 pages, To appear, Theor.Math.Phys. Gallipoli, 34 June--3 July 200
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