378 research outputs found

    Testing the performance of a green wall system on an experimental building in the summer

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    It is known that a green wall brings some advantages to a building. It constitutes a barrier against solar radiation, thus decreasing and delaying the incoming heat flux. The aim of this study is to quantify such advantages through analytical comparison between two facades, a vegetal facade and a conventional facade. Both were highly insulated (U-value = 0.3 W/m2K) and installed facing south on the same building in the central territory of Spain. In order to compare their thermal trend, a series of sensors were used to register superficial and indoor air temperature. The work was carried out between 17th August 2012 and 1st October 2012, with a temperature range of 12°C-36°C and a maximum horizontal radiation of 1020 W/m2. Results show that the indoor temperature of the green wall module was lower than the other. Besides, comparing superficial outdoor and indoor temperatures of the two walls to outdoor air temperatures, it was noticed that, due to the shading plants, the green wall superficial temperature was 5 °C lower on the facade, while the bare wall temperature was 15 °C higher. The living wall module temperature was 1.6 °C lower than the outdoor, while the values of the conventional one were similar to the outdoor air temperature

    Craniofacial superimposition studies on a set of cosimo i de’ medici’s (1519-1574) and eleonora di toledo’s (1522-1562) portraits

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    A set of portraits of the Florentine grand duke Cosimo I de’ Medici (1519-1574) and of his wife Eleonora di Toledo (1522–1562) painted by two major representatives of Florentine Mannerism (Italian Late Renaissance), Pontormo and Bronzino was compared with the skulls of the two subjects utilizing the forensic technique of craniofacial superimposition. The results show that, in the case of Cosimo I, both a painting (Pontormo, workshop of, Cosimo I de’ Medici, 1537) and a drawing (Pontormo, Cosimo I de’ Medici in Profile, 1537) show lack of fit with the skull in four points (the glabellar outline, the depth of the nasal bridge, the bony lateral wall of the orbit, and the outline of the frontal process of the zygomatic bone). The drawing, therefore, seems to contradict the well established idea that Renaissance painters prepared lifelike sketches of their sitters which were then modified when transferred to the painting. In the case of Eleonora di Toledo, on the other hand, craniofacial superimposition analysis reveals that Bronzino, possibly as the result of a desperate search for the “best angle” of the sitter, adopted an unusual perspective to portray the duchess (Bronzino, Eleonora di Toledo, c. 1539) possibly looking down the sitter, by standing, while the sitter was seated in front of him. The face of the sitter was subsequently, in another painting (Bronzino, Eleonora di Toledo and Her Son Giovanni, c. 1544-45) “transplanted” onto the rest of the body given the impression that the duchess “looks” at the viewer from above. © 2016 Romanian Society of Legal Medicine

    Il cammino di trasformazione verso una nuova “normalità” ai tempi del Covid-19: dalla pedagogia della vulnerabilità alla pedagogia della resilienza

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    At critical moments such as that of the Covid-19 pandemic, vulnerability and fragility emerge, even in the field of pedagogy. This paper, through a multidisciplinary approach, aims to examine the desired transition from a pedagogy of vulnerability to a pedagogy of resilience, from a perspective in which the focus is on the creative and transformative potential of the individual and the community.In momenti critici come quello della pandemia di Covid-19 emergono vulnerabilità e fragilità, anche nel campo della pedagogia. Questo articolo, attraverso un approccio multidisciplinare, intende esaminare l’auspicato passaggio da una pedagogia della vulnerabilità a una pedagogia della resilienza, da una prospettiva in cui l’attenzione è posta sulle potenzialità creative e trasformative dell’individuo e della comunità

    The "Kitāb Sībawayhi" Project : Sībawayhi from Sībawayhi’s perspective – A thematic approach to the translation of the "Kitāb"

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    The Kitāb Sībawayhi Project aims at a new English translation and analysis of the Kitāb Sībawayhi, with an innovative approach that will shed light on the way the linguistic system of Arabic has been described by the most prominent figure of the Arabic linguistic tradition

    Contemporary Architecture in Genoa since 1945—Knowledge and Use through Geoservices for the Citizen

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    The paper illustrates the enhancement of knowledge of architecture from 1945 onwards in Genoa by means of the publication on the Geoportal of the Municipality, which was developed with open-source systems, of a proper dataset and tools for digital storytelling for citizens. The implementation on the municipal Geoportal of a section called “Contemporary Architecture from 1945 onwards in Genoa” was made possible through collaboration between the University of Genoa Architecture and Design Department (DAD) and the Municipality of Genoa Office for Geographical Information Systems. The data related to the buildings in the Municipality of Genoa were extracted from a previous study about contemporary architecture in Liguria carried out by DAD. The case study introduced two tools for the promotion and enhancement of knowledge of such architecture, a map on which the buildings are located and associated with an information form and geostories with in-depth information on selected buildings, the latter of which can be sorted based on thematic itineraries or by author. The use of integrated services contributes to the competitiveness and sustainability of the city, raising citizens’ awareness of the value of the architecture of the second half of the 20th century and thus activating conservation processes as advocated in the Sustainable Development Goals of the United Nations General Assembly

    Phylogenetic position of a copper age sheep (Ovis aries) mitochondrial DNA.

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    Background: Sheep (Ovis aries) were domesticated in the Fertile Crescent region about 9,000-8,000 years ago. Currently, few mitochondrial (mt) DNA studies are available on archaeological sheep. In particular, no data on archaeological European sheep are available. Methodology/Principal Findings: Here we describe the first portion of mtDNA sequence of a Copper Age European sheep. DNA was extracted from hair shafts which were part of the clothes of the so-called Tyrolean Iceman or O¹ tzi (5,350 - 5,100 years before present). Mitochondrial DNA (a total of 2,429 base pairs, encompassing a portion of the control region, tRNAPhe, a portion of the 12S rRNA gene, and the whole cytochrome B gene) was sequenced using a mixed sequencing procedure based on PCR amplification and 454 sequencing of pooled amplification products. We have compared the sequence with the corresponding sequence of 334 extant lineages. Conclusions/Significance: A phylogenetic network based on a new cladistic notation for the mitochondrial diversity of domestic sheep shows that the O¹ tzi’s sheep falls within haplogroup B, thus demonstrating that sheep belonging to this haplogroup were already present in the Alps more than 5,000 years ago. On the other hand, the lineage of the O¹ tzi’s sheep is defined by two transitions (16147, and 16440) which, assembled together, define a motif that has not yet been identified in modern sheep populations

    DSM-5 PTSD and posttraumatic stress spectrum in Italian emergency personnel: correlations with work and social adjustment

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    The Diagnostic and Statistical Manual of Mental Disorders Fifth Edition (DSM-5) has recently recognized a particular risk for posttraumatic stress disorder (PTSD) among first responders (criterion A4), acknowledging emergency units as stressful places of employment. Little data is yet available on DSM-5 among emergency health operators. The aim of this study was to assess DSM-5 symptomatological PTSD and posttraumatic stress spectrum, as well as their impact on work and social functioning, in the emergency staff of a major university hospital in Italy. One hundred and ten subjects (doctors, nurses, and health-care assistants) were recruited at the Emergency Unit of the Azienda Ospedaliero-Universitaria Pisana (Italy) and assessed by the Trauma and Loss Spectrum-Self Report (TALS-SR) and Work and Social Adjustment Scale (WSAS). A 15.7% DSM-5 symptomatological PTSD prevalence rate was found. Nongraduated persons reported significantly higher TALS-SR Domain IV (reaction to loss or traumatic events) scores and a significantly higher proportion of individuals presenting at least one maladaptive behavior (TALS-SR Domain VII), with respect to graduate ones. Women reported significantly higher WSAS scores. Significant correlations emerged between PTSD symptoms and WSAS total scores among health-care assistants, nongraduates and women. Our results showed emergency workers to be at risk for posttraumatic stress spectrum and related work and social impairment, particularly among women and nongraduated subjects. Keywords: posttraumatic stress disorder (PTSD), emergency, emergency care workers, work and social functioning/adjustment, maladaptive behaviors, gender, educatio

    Curcumin, Polydatin and Quercetin Synergistic Activity Protects from High-Glucose-Induced Inflammation and Oxidative Stress

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    none10noChronic hyperglycemia, the diagnostic biomarker of Type 2 Diabetes Mellitus (T2DM), is a condition that fosters oxidative stress and proinflammatory signals, both involved in the promotion of cellular senescence. Senescent cells acquire a proinflammatory secretory phenotype, called SASP, exacerbating and perpetuating the detrimental effects of hyperglycemia. Bioactive compounds can exert antioxidant and anti-inflammatory properties. However, the synergistic anti-inflammatory and antioxidant effects of the most extensively investigated natural compounds have not been confirmed yet in senescent cells and in hyperglycemic conditions. Here, we exposed young and replicative senescent HUVEC (yHUVEC and sHUVEC) to a high-glucose (HG) condition (45 mM) and treated them with Polydatin (POL), Curcumin (CUR) and Quercetin (QRC), alone or in combination (MIX), to mirror the anti-inflammatory component OxiDefTM contained in the novel nutraceutical GlicefenTM (Mivell, Italy). In both yHUVEC and sHUVEC, the MIX significantly decreased the expression levels of inflammatory markers, such as MCP-1, IL-1ÎČ and IL-8, and ROS production. Importantly, in sHUVEC, a synergistic effect of the MIX was observed, suggesting its senomorphic activity. Moreover, the MIX was able to reduce the expression level of RAGE, a receptor involved in the activation of proinflammatory signaling. Overall, our data suggest that the consumption of nutraceuticals containing different natural compounds could be an adjuvant supplement to counteract proinflammatory and pro-oxidative signals induced by both hyperglycemic and senescence conditions.openMatacchione, Giulia; Valli, Debora; Silvestrini, Andrea; Giuliani, Angelica; Sabbatinelli, Jacopo; Giordani, Chiara; Coppari, Sofia; Rippo, Maria Rita; Albertini, Maria Cristina; Olivieri, FabiolaMatacchione, Giulia; Valli, Debora; Silvestrini, Andrea; Giuliani, Angelica; Sabbatinelli, Jacopo; Giordani, Chiara; Coppari, Sofia; Rippo, Maria Rita; Albertini, Maria Cristina; Olivieri, Fabiol
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