2,494 research outputs found

    Gilt stuccoes of the italian baroque

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    C. Colombo, L. Toniolo, S. Bruni, P. Fermo, A. Casoli, G. Palla, C. L. Bianchi, Gilt stuccoes of the italian baroque. Studies in Conservation, 43, 1998, 201-208

    A Florentine family in crisis: the Strozzi in the fifteenth century.

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    PhDIn 1434 the Strozzi lineage had held a leading position in Florentine society and government for at least one hundred and fifty years, and was one of the largest and wealthiest of the city's patrician lineages. The records of the catasto of 1427 and of the scrutiny of 1433 are used to give a profile of the dominant social, economic and political position of the Strozzi before the advent of Medicean dominance. Their record of electoral success, and the political and cultural leadership of influential and respected men such as Palla di Nofri and Matteo di Simone, with other factors, put the Strozzi amongst the greatest enemies of the victorious Medicean regime of late 1434. The effects of political opposition and exile on the lineage are examined both directly, through records of office-holding, and indirectly through such indicators as marriage alliances and household wealth. The two most prominent lines of the Strozzi were exiled after 1434. Palla di Nofri's life and preoccupations in his Paduan exile are examined, together with the lives of his sons; none of these Strozzi ever returned to Florence, pursued as they were by the enmity of the Medicean regime. The very different careers of Filippo di Matteo and his brother Lorenzo are also examined: how they succeeded in founding a lucrative bank in Naples, and in returning to Florence to 'rebuild' (rifare) the position of the Strozzi lineage there. The final decades of the century saw the Strozzi in an economically more secure position, due substantially to the efforts of Filippo. Except for a very small number of its members admitted into the regime, most of the lineage is here shown to have remained excluded from significant political office until after the fall of the Medici regime in 1494

    Plant Extracts as Antimicrobial Agents in Sustainable Conservation of Erythrina caffra (Fabaceae) Historical Trees

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    Microbial colonization plays a relevant role in the biodegradation and biodeterioration of cultural and natural heritage, representing a revealing problem in conservation strategy. In this study, the essential oil (EO) and hydro-alcoholic extract (HAE) of Origanum vulgare L. (Lamiaceae), an aromatic perennial plant, representative of the Mediterranean basin, growing spontaneously and cultivated all over the world, were analysed. Natural products, such as essential oil and hydroalcoholic extract, have strong antiseptic and antimicrobial properties and are ad hoc applied for the sustainable conservation of Erithryna caffra (Fabaceae). The main taxa revealed in the damaging of these arboreal heritage, are Bacillus sp., Streptomyces sp. and Terribacillus sp. (as bacteria), Alternaria sp., Aspergillus sp. and Chaetomium sp. (as fungi). GS-MS analysis identified carvacrol, thymol and their biosynthetic precursors g-terpinene and p-cymene, as main components, and the antimicrobial efficiency assayed by in vitro methods (Agar Dish Diffusion, Well Plate Diffusion). In this study, by combining the application/exposure of both HAE and EO, the bacterial and fungal colonies development has been in vitro countered. The results confirm the possible use of plant products as a valid alternative to the traditional synthetic chemical biocides, with full respect to the environment

    Schoenoplectus Palla, Verh. K. K. Zool.

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    Genus 12. Schoenoplectus (Rchb.) Palla, Verh. K. K. Zool. -Bot. Ges. Wien 38 (Sitzungsber.): 49 (1888), nom. cons. T y p u s: Scirpus lacustris L. (= Schoenoplectus lacustris (L.) Palla).Published as part of Danylyk, Ivan M. & Koopman, Jacob, 2023, Cyperaceae of Ukraine: taxonomy and linear classification, pp. 93-111 in Phytotaxa 578 (1) on page 105, DOI: 10.11646/phytotaxa.578.1.5, http://zenodo.org/record/751773

    A Fast Method that Uses Polygenic Scores to Estimate the Variance Explained by Genome-wide Marker Panels and the Proportion of Variants Affecting a Trait.

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    Several methods have been proposed to estimate the variance in disease liability explained by large sets of genetic markers. However, current methods do not scale up well to large sample sizes. Linear mixed models require solving high-dimensional matrix equations, and methods that use polygenic scores are very computationally intensive. Here we propose a fast analytic method that uses polygenic scores, based on the formula for the non-centrality parameter of the association test of the score. We estimate model parameters from the results of multiple polygenic score tests based on markers with p values in different intervals. We estimate parameters by maximum likelihood and use profile likelihood to compute confidence intervals. We compare various options for constructing polygenic scores, based on nested or disjoint intervals of p values, weighted or unweighted effect sizes, and different numbers of intervals, in estimating the variance explained by a set of markers, the proportion of markers with effects, and the genetic covariance between a pair of traits. Our method provides nearly unbiased estimates and confidence intervals with good coverage, although estimation of the variance is less reliable when jointly estimated with the covariance. We find that disjoint p value intervals perform better than nested intervals, but the weighting did not affect our results. A particular advantage of our method is that it can be applied to summary statistics from single markers, and so can be quickly applied to large consortium datasets. Our method, named AVENGEME (Additive Variance Explained and Number of Genetic Effects Method of Estimation), is implemented in R software

    Correction to: RarERN Path: a methodology towards the optimisation of patients’ care pathways in rare and complex diseases developed within the European Reference Networks (Orphanet Journal of Rare Diseases, (2020), 15, 1, (347), 10.1186/s13023-020-01631-1)

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    Following the publication of the original article [1] we were informed that the authors’ given and family names had unfortunately been interchanged. The correct author names are shown here below: Rosaria Talarico, Sara Cannizzo, Valentina Lorenzoni, Diana Marinello, Ilaria Palla, Salvatore Pirri, Simone Ticciati, Leopoldo Trieste, Isotta Triulzi, Enrique Terol, Anna Bucher and Giuseppe Turchetti. The author names have been corrected in the author list of this Correction and updated in the original article

    IgG, IgA and C3 deposits in the extra-thyroidal manifestations of autoimmune Graves' disease: their in vitro solubilization by intravenous immunoglobulin.

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    OBJECTIVE:To study the involvement of antibodies in the extrathyroidal manifestations of autoimmune Graves' disease, we determined the presence of IgG, IgA and IgM antibodies and C3c in connective tissue samples from patients with Graves' disease and pretibial myxedema (PTM) or thyroid associated ophthalmopathy (TAO). METHODS:Connective orbital tissue samples were obtained from 12 patients undergoing orbital decompression for TAO, and skin samples from lesions on the pretibial area were obtained in 7 patients with PTM. Sections from each tissue sample were stained with fluorescin-isothiocianate conjugated anti-human IgG, IgA, IgM and C3c and were examined by a fluorescence optical instrument. Other serial sections from each sample were incubated with human IgG solutions (concentration 6 mg/ml or 20 mg/ml), human albumin (40 mg/ml), PBS, myoglobin (40 mg/ml), or IgA (20 mg/ml), and were then processed by a standard direct immunofluorescence staining procedure. RESULTS:Among the samples from TAO patients 8/12 (67%) were positive for IgG deposition, 4/9 (44%) were positive for IgA, 1/9 (11%) was positive for IgM and 4/9 (44%) were positive for C3c deposition. Orbital connective samples from 3 non-TAO patients were all negative. Among samples from PTM patients 4/7 (57%) were positive for IgG deposition, 3/ 4 (75%) were positive for IgA, 0/4 was positive for IgM and 3/7 (43%) were positive for C3c deposition. Skin samples from 5 control patients undergoing skin biopsy for non-autoimmune diseases were all negative. Incubation with human IgG (20 mg/ml) resulted in the complete disappearance of IgG and C3c deposition in all positive patients. No significant variation in IgG fluorescent staining after incubation with either 6 mg/ml of IgG solution, human albumin, PBS, myoglobin or IgA was observed. CONCLUSION:The results of our study suggest that different classes of antibodies, mainly IgG and IgA, may be implicated in the disease process in autoimmune TAO and PTM. Activation of the complement cascade, via the classic or the alternative pathway, could take place in about 40% of these patients. IVIG in vitro may solubilize, by a specific mechanism, IgG and complement immune complex deposition in the extrathyroidal manifestations of autoimmune Grave's disease
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