20 research outputs found
THE ARCHAEOLOGICAL PARK OF NAVELLI (ITALY) IN THE RECONSTRUCTION PLAN: HYPOTHESIS OF ADAPTIVE REUSE
Abstract. This study is aimed at identifying adaptive design strategies applied to the particular contexts of the Abruzzo Region during the post-earthquake reconstruction. The area affected by the calamitous event present material and immaterial issues to be interpreted and managed according to integrated and interdisciplinary intervention methods. In this context, the Reconstruction Plans (PdR) provide the guidelines for a coherent territorial development, proposing design solutions that call for sustainability and resilience. The village of Navelli, which 10 years after the earthquake is still in a serious state of damage and abandonment, is identified in the 2013 PdR as an area to be converted into an archaeological park. The Plan prescribes by specifications on the basis of identifying values of the area whilst inspections carried out reveal a stratified, vast and remarkably heterogeneous building fabric both as regards to the level of damage and the values to be protected. From the analyzes carried out, the case study provides the opportunity for an ad hoc design methodology, identified by specific interventions that are at the same time inter-dependent and included in a complex project. The work highlights how the overall design of a public space can find an easier resolution in the integration of adaptive and reversible technologies, coherent with the sustainable development suggested by the PdR
Gold-Catalyzed Cascade Reactions of 4H‑Furo[3,2‑b]indoles with Propargyl Esters: Synthesis of 2-Alkenylidene-3-oxoindolines
2-alkenyliden-indolin-3-ones were synthesised in high yields via a cascade reaction between 4H\u2011furo[3,2\u2011b]indoles and propargyl esters. The cascade sequence involves initial formation of a gold-carbene specie via cationic gold(I) catalysed 1,2-acyloxy migration of properly substituted propargyl esters followed by gold-carbene to furoindole addition and successive furan ring-opening affording the final products. The obtained compounds contain an extended \uf070-system linked at the C2 of the indolin-3-ones, they are characterised by intense colouration (from yellow to purple) and were characterised by UV mesearurements
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Strengthening the foundations of proliferation assessment tools.
Robust and reliable quantitative proliferation assessment tools have the potential to contribute significantly to a strengthened nonproliferation regime and to the future deployment of nuclear fuel cycle technologies. Efforts to quantify proliferation resistance have thus far met with limited success due to the inherent subjectivity of the problem and interdependencies between attributes that lead to proliferation resistance. We suggest that these limitations flow substantially from weaknesses in the foundations of existing methodologies--the initial data inputs. In most existing methodologies, little consideration has been given to the utilization of varying types of inputs--particularly the mixing of subjective and objective data--or to identifying, understanding, and untangling relationships and dependencies between inputs. To address these concerns, a model set of inputs is suggested that could potentially be employed in multiple approaches. We present an input classification scheme and the initial results of testing for relationships between these inputs. We will discuss how classifying and testing the relationship between these inputs can help strengthen tools to assess the proliferation risk of nuclear fuel cycle processes, systems, and facilities
Public subsidies and the employment growth of high-tech start-ups: assessing the impact of selective and automatic support schemes
none3noneM.G. Colombo; S. Giannangeli; L. GrilliColombo, MASSIMO GAETANO; Giannangeli, Silvia; Grilli, Luc
Winning Moves to Face a Stagnant European Gas&Power Market
The aim of the annual report 2014 is to analyze the M&A transactions, the most important strategic agreements and the development policies pursued by the 42 leading companies in the pan-European Gas&Power sector during 2013. The topic is specified within the international competitive dynamics, already implemented and emerging. The contents of the document he held until 31 December 2013 and its writing was finalized the end of February 201
Synthesis of 2-alkenylidene-3-oxoindoles by gold-catalyzed cascade reaction
Homogeneous gold-catalyzed cascade reactions are important and useful process for the synthesis, inter alias, of highly functionalized heterocycles and natural products. In this context, we recently investigated the use of functionalized 4H-furo[3,2-b]indoles for the synthesis of more complex structures. Thus, 4H-furo[3,2-b]indoles were explored for the synthesis of 2-spirocyclopentane-1,2-dihydro-3H-indolin-3-ones through the addition of gold-activated allenes to the C2 furan moiety.
Herein we present the evolution of this work involving the C2-C3 bond of 4H-furo[3,2-b]indoles in the reaction with a gold(I)-carbene generated in situ from propargyl esters. In particular, reaction between 4H-furo[3,2-b]indoles and propargyl esters, performed in presence of gold(I) catalysts, leads to the formation of 2-alkenylidene-3-oxoindoles in a cascade process that includes a double ring opening step. A series of 2-alkenylidene-3-oxoindoles were obtained in good to excellent yields. Optimization of the reaction conditions, scope and proposed reaction mechanism will be illustrated in the poster, together with preliminary photophysical studies