Search results for "Sido"
showing 10 items of 522 documents
Effect of a Rigid Sulfonamide Bond on Molecular Folding: A Case Study
2015
A disulfonamide compound with bulky aromatic side chains was prepared, and its properties as a potential building block for foldamers were evaluated. Two different solvate crystal forms of the compound were identified and compared to the structures of an analogous oligoamide and related disulfonamides. The disulfonamide is unfolded in one of the solvates, whereas in the other one, a loosely folded conformer stabilized by an intramolecular hydrogen bond is found. Density functional calculations indicated that the loosely folded conformer is slightly more stable than its unfolded isomer. The calculations also identified a third, more tightly folded and more extensively hydrogen bonded, confor…
Flow resistance ofPosidonia oceanicain shallow water
2006
Management of coastal waters and lagoons by mathematical circulation models requires determination of the hydraulic resistance of submerged vegetation. A plant typical of sandy coastal bottoms in the Mediterranean Sea is Posidonia oceanica, which is constituted by very thin and flexible ribbon-like leaves, about 1 cm wide and up to 1.5 m long, and usually covers the bottom with a density of 500-1000 plants/ m2. From the hydraulic viewpoint, P. oceanica constitutes a particular roughness, because, as the velocity increases, the leaves bend more and more until they lie down on the bottom. Although P. oceanica is widespread, in the technical literature it is difficult to find indications about…
Closely Related Archaeal Haloarcula hispanica Icosahedral Viruses HHIV-2 and SH1 Have Nonhomologous Genes Encoding Host Recognition Functions
2012
Studies on viral capsid architectures and coat protein folds have revealed the evolutionary lineages of viruses branching to all three domains of life. A widespread group of icosahedral tailless viruses, the PRD1-adenovirus lineage, was the first to be established. A double -barrel fold for a single major capsid protein is characteristic of these viruses. Similar viruses carrying genes coding for two major capsid proteins with a more complex structure, such as Thermus phage P23-77 and haloarchaeal virus SH1, have been isolated. Here, we studied the host range, life cycle, biochemical composition, and genomic sequence of a new isolate, Haloarcula hispanica icosahedral virus 2 (HHIV-2), which…
Utilizzo dell'idrossido di calcio nelle lesioni cistiche. Caso clinico
2006
REUTILIZACIÓN DE RESIDUOS DE PODA DE VID Y DE POSIDONIA OCEANICA EN LAS OBRAS DE BIOINGENIERÍA DEL PAISAJE
La popolazione mondiale è in continua espansione e la crescita demografica ed economica inducono allo sfruttamento progressivo dell’ambiente ed al depauperamento delle risorse naturali (acqua ed energia in particolare), con conseguenti impatti potenzialmente importanti sul cambiamento globale. Si rende, pertanto, necessaria ed urgente una più efficiente gestione delle risorse basata sulla rielaborazione di obiettivi sostenibili di politiche e strategie ambientali e sulla riduzione del consumo delle risorse, promuovendo la transizione da un modello di economia lineare ad uno circolare, costituito da un ciclo continuo di sviluppo positivo che preserva e migliora il capitale naturale, ottimizz…
Phosphorus Profile of Basidiomycetes
2015
Phosphorus profiles of methanolic extracts of dried basidocarps of edible and toxic mushrooms collected in Poland have been determined. Despite of the presence of standard phosphorus compounds majority of the extracts revealed the presence of phosphonates. Also, the presence of polyphospates was determined in selected cases.
Negative Engagement
2018
Negative engagement has steeply increased on the scholarly agenda along with the introduction of real time and social media, though negative experiences and emotions are as such not new phenomena. This chapter takes a future perspective and focuses on negative stakeholder engagement online in the context of organizations and brands, which increasingly face visible forms of negative stakeholder emotions or even fierce "shit storms". It begins by defining what negative stakeholder engagement refers to in the context of organizations and brands. The chapter introduces the development of negative engagement via related concepts. After introducing the concepts, the process and the outcomes of ne…
Gozos a San Isidoro Arzobispo de Sevilla : à 4. Abril.
Full orlat Grav. xil. enmarcat del sant, flanquejat per gerros amb flors Text del goig a dues col. separades per doble banda