Journal articles on the topic 'Regione Valle d’Aosta'
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1
Bisio, Luigi, and Gianni Allegro. "I Coleotteri Carabidi e Cicindelidi della Valle d’Aosta (Italia nord-occidentale)." Memorie della Società Entomologica Italiana 99, no. 2 (December 16, 2022): 81–122. http://dx.doi.org/10.4081/memoriesei.2022.81.
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Viene riportata una sintesi dei risultati delle ricerche carabidologiche condotte sino a oggi nella Regione Valle d’Aosta. Dopo avere illustrato i principali caratteri geologici, climatici e vegetazionali della Valle, vengono elencate le 309 specie di Carabidae e Cicindelidae attualmente note, di cui vengono indicati il corotipo, le preferenze ecologiche e la distribuzione nelle diverse valli che compongono il territorio della Regione. Viene inoltre messa a confronto la diversità delle valli per quanto riguarda ricchezza specifica e ricchezza di endemismi alpini. Infine, vengono descritte le principali cenosi presenti e sono messi in evidenza i più importanti biotopi umidi meritevoli di protezione.
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Busato, Enrico, Luca Bertignono, Ilaria Brunet, Francesca Madormo, and Alberto Alma. "Coleotteri Carabidi in agroecosistemi della Valle d’Aosta." Memorie della Società Entomologica Italiana 92, no. 1-2 (December 15, 2015): 3. http://dx.doi.org/10.4081/memoriesei.2015.3.
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Nell’ambito di uno studio sulla biodiversità animale e vegetale relativa a 11 macroaree della Regione Valle d’Aosta comprendenti agroecosistemi (vigneto e meleto) ed ecosistemi naturali o seminaturali, particolare attenzione è stata rivolta ai Coleotteri Carabidi, insetti da tempo ampiamente utilizzati come bioindicatori per i loro adattamenti ad ambienti peculiari e differenziati. Le indagini sono state condotte con cadenza decadale, da aprile a novembre nel triennio 2006-2008. Per ogni macroarea, 3 trappole a caduta sono state disposte lungo la diagonale di ogni unità campione. Inoltre, raccolte a vista sono state realizzate con periodicità mensile. Per l’elaborazione dei dati è stato adottato l’indice di biodiversità di Shannon-Wiener. Nei 3 anni sono stati censiti più di 21.000 individui per un totale di 88 specie. La carabidofauna è risultata composta da specie a vasta geonemia, con distribuzione in prevalenza asiatico-europea, sibirico-europea o europea. L’indice di Shannon-Wiener ha toccato valori elevati in diverse aree. Questi dati indicano che la Valle d’Aosta, all’interno di alcuni agroecosistemi (vigneto e meleto), conserva un ottimo livello di qualità ambientale che è indubbiamente legato a un’oculata gestione agronomica dei trattamenti fitosanitari e alla presenza di numerose fasce di incolti e di boschi stabili, che formano una striscia continua tra gli appezzamenti coltivati e fungono da corridoio ecologico e importante zona di rifugio per i Coleotteri Carabidi.
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Cavallo, Maria Caterina, Filippo Cipriani, Simone Gerzeli, Nadia Demarteau, Alessia Marocco, and Francesco Bamfi. "Valle d’Aosta." Farmeconomia. Health economics and therapeutic pathways 9, no. 1S (September 15, 2008): 15–17. http://dx.doi.org/10.7175/fe.v9i1s.1000.
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In Aosta Valley region 77,9% of women (aged 25-64) are screened regularly, meaning every 3 years. Considering regional tariffs and vaccine acquisition cost, the vaccination of 12-year-old girls with a 90% coverage could prevent 2 cases of cervicocarcinoma and 1 related death and thus results to be cost-effective (33.211 €/QALY). When the vaccination programme is extended to 16-year-old girls a further 1 cancer case could be prevented, with a very similar cost-effectiveness ratio. In Aosta Valley region, the net cost for woman vaccinated is 209 € for the single cohort and 211 € for the multiple cohort.
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Gasparini, Roberto, Donatella Panatto, Bruna Dirodi, Rosa Prato, Gianni Amunni, Valter Turello, Luigi Sudano, Paolo Cristoforoni, Sara Boccalini, and Paolo Bonanni. "Valle d’Aosta." Farmeconomia. Health economics and therapeutic pathways 13, no. 2S (November 20, 2012): 73–75. http://dx.doi.org/10.7175/fe.v13i2s.469.
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In Valle d’Aosta region 89% of women (aged 24-64) are screened regularly, meaning every 3 years. The analysis on cross-protective activity exercised by bivalent and quadrivalent vaccines shows that the bivalent vaccine could prevent more pre-cancerous lesions and cases of cervicocarcinoma than quadrivalent, and that the latter could prevent genital warts that are not prevented by bivalent. The major number of cases avoided by the bivalent make it possible to fully offset the cost savings related to warts associated with the quadrivalent vaccine. Furthermore, a cost-effectiveness analysis shows that, considering regional tariffs, the multiple cohort (12-year-old + 25-year-old women) vaccination strategy with a 90% coverage could prevent 1 case of cervicocarcinoma more than the vaccination of only 12-year-old girls, and thus proves to be cost-effective (11,365 €/QALY).
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Paggi, Marco. "An Analysis of the Italian Lockdown in Retrospective Using Particle Swarm Optimization in Machine Learning Applied to an Epidemiological Model." Physics 2, no. 3 (August 1, 2020): 368–82. http://dx.doi.org/10.3390/physics2030020.
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A critical analysis of the open data provided by the Italian Civil Protection Centre during phase 1 of Covid-19 epidemic—the so-called Italian lockdown—is herein proposed in relation to four of the most affected Italian regions, namely Lombardy, Reggio Emilia, Valle d’Aosta, and Veneto. A possible bias in the data induced by the extent in the use of medical swabs is found in relation to Valle d’Aosta and Veneto. Observed data are then interpreted using a Susceptible-Infectious-Recovered (SIR) epidemiological model enhanced with asymptomatic (infected and recovered) compartments, including lockdown effects through time-dependent model parameters. The initial number of susceptible individuals for each region is also considered as a parameter to be identified. The issue of parameters identification is herein addressed by a robust machine learning approach based on particle swarm optimization. Model predictions provide relevant information for policymakers in terms of the effect of lockdown measures in the different regions. The number of susceptible individuals involved in the epidemic, important for a safe release of lockdown during the next phases, is predicted to be around 10% of the population for Lombardy, 16% for Reggio Emilia, 18% for Veneto, and 40% for Valle d’Aosta.
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Binel, Corrado. "Valle d’Aosta. La sfida della continuità / Aosta Valley. The challenge of continuity." Regionalità e produzione architettonica contemporanea nelle Alpi, no. 1 ns, november 2018 (November 15, 2018): 54–65. http://dx.doi.org/10.30682/aa1801f.
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The text traces the history of Aosta Valley architecture from the Second World War to the present day. The first part focuses on the evolution of architecture in the fifties and sixties, on modern architecture and on the international influences in a long phase of great economic growth. In the central part it focuses rather on the regionalist and sometimes folkloristic evolution of the following decades. He then tried to analyse, starting from the 2000s, the profound transformations generated by the economic crisis but also by the extraordinary occupation of land that over the course of about 50 years has saturated most of the territory of a small Alpine region. Finally, it attempts an analysis of the most recent development, of relations with the rest of the Alpine world and of the not easy attempt to combine history, environment, aesthetics and rationality. The text is accompanied by the choice of eight architectures from 2010 in the last eight years. As you can see only two are public works, two of collective interest and four are private homes and this choice wants to focus your attention to the fact that in the near future, in all likelihood, will no longer be the public commission to be at the center of possible experiments with new architectural languages.
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Novelli, Antonio, Valentina D’Alonzo, Simon Pezzutto, Rubén Aarón Estrada Poggio, Alessandro Casasso, and Pietro Zambelli. "A Spatially-Explicit Economic and Financial Assessment of Closed-Loop Ground-Source Geothermal Heat Pumps: A Case Study for the Residential Buildings of Valle d’Aosta Region." Sustainability 13, no. 22 (November 12, 2021): 12516. http://dx.doi.org/10.3390/su132212516.
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Ground Source Heat Pumps (GSHPs) take advantage of the high thermal inertia of the ground to achieve a higher energy efficiency compared to Air Source Heat Pumps. GSHPs, therefore, have the potential to reduce heating, cooling, and domestic hot water costs, however the high installation cost of borehole heat exchangers (BHEs) limits the growth of such installations. Nevertheless, GSHPs can be profitable under certain conditions (climate, expensive fuels, subsidies, etc.), which can be identified using geo-referenced data and Geographical Information Systems (GIS). The proposed work investigates the economic and financial ability of GSHPs to cover the heat demand of the residential building stock of the Italian region Valle d’Aosta. To identify the opportunities offered by GSHPs in the Valle d’Aosta region, more than 40,000 residential buildings were analyzed using a GIS-based method. The return on the investment was then assessed based on the occurrence of two conditions—the Italian subsidies of the “Conto Termico” and the installation of rooftop photovoltaic (PV) systems—which contribute to the reduction of the initial and operation costs, respectively. The life-cycle costs of the four resulting combinations were compared with conventional systems composed of an oil/gas boiler and an air-source chiller. One of the main findings of this study is that subsidies exert a key role in the financial feasibility of GSHPs, especially for replacing gas boilers, whereas the presence of a PV system has a minor influence on the financial analysis carried out.
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Casale, Giuseppe R., Anna Maria Siani, Henri Diémoz, Giovanni Agnesod, Alfio V. Parisi, and Alfredo Colosimo. "Extreme UV index and solar exposures at Plateau Rosà (3500 m a.s.l.) in Valle d’Aosta Region, Italy." Science of The Total Environment 512-513 (April 2015): 622–30. http://dx.doi.org/10.1016/j.scitotenv.2015.01.049.
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CIANFICCONI, FERNANDA, CARLA CORALLINI, FRANCESCO TUCCIARELLI, and MARIA CLARA BICCHIERAI. "The genus Hydroptila Dalman 1819 in Italy: Ecology and morphology." Zoosymposia 10, no. 1 (August 9, 2016): 117–47. http://dx.doi.org/10.11646/zoosymposia.10.1.11.
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The 27 Hydroptila species listed as of 2012 in Italy were found in 434 biotopes located in lotic and lentic waters of the Italian mainland regions and islands (Sicilia, Sardegna, Capraia, Elba). The richest regions are Umbria (15 species), Toscana and Piemonte. The most widespread species are H. vectis, found in18 regions and H. angulata found in 16 regions. Hydroptila fiorii, H. serrata and H. cortensis were found only in Sardegna, the latter only in one site. Hydroptila tacheti was found only in Friuli-Venezia Giulia. No Hydroptila species were found in Valle d’Aosta. Four species are endemic to the Italian fauna (H. cortensis, H. fiorii, H. ruffoi, H. stellifera). The main ecological parameters of Hydroptila spp. collection sites are discussed. The organization of scent organs in male H. aegyptia was examined by means of light and electron microscopy. Finally, an updated catalogue of the Italian species is reported.
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Bianchini, Silvia, Lorenzo Solari, Davide Bertolo, Patrick Thuegaz, and Filippo Catani. "Integration of Satellite Interferometric Data in Civil Protection Strategies for Landslide Studies at a Regional Scale." Remote Sensing 13, no. 10 (May 11, 2021): 1881. http://dx.doi.org/10.3390/rs13101881.
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Multi-Temporal Satellite Interferometry (MTInSAR) is gradually evolving from being a tool developed by the scientific community exclusively for research purposes to a real operational technique that can meet the needs of different users involved in geohazard mitigation. This work aims at showing the innovative operational use of satellite radar interferometric products in Civil Protection Authority (CPA) practices for monitoring slow-moving landslides. We present the example of the successful ongoing monitoring system in the Valle D’Aosta Region (VAR-Northern Italy). This system exploits well-combined MTInSAR products and ground-based instruments for landslide management and mitigation strategies over the whole regional territory. Due to the critical intrinsic constraints of MTInSAR data, a robust regional satellite monitoring integrated into CPA practices requires the support of both in situ measurements and remotely sensed systems to guarantee the completeness and reliability of information. The monitoring network comprises three levels of analysis: Knowledge monitoring, Control monitoring, and Emergency monitoring. At the first monitoring level, MTInSAR data are used for the preliminary evaluation of the deformation scenario at a regional scale. At the second monitoring level, MTInSAR products support the prompt detection of trend variations of radar benchmarks displacements with bi-weekly temporal frequency to identify active critical situations where follow-up studies must be carried out. In the third monitoring level, MTInSAR data integrated with ground-based data are exploited to confirm active slow-moving deformations detected by on-site instruments. At this level, MTInSAR data are also used to carry out back analysis that cannot be performed by any other tool. From the example of the Valle D’Aosta Region integrated monitoring network, which is one of the few examples of this kind around Europe, it is evident that MTInSAR provides a great opportunity to improve monitoring capabilities within CPA activities.
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Oppio, Alessandra, Marta Bottero, Valentina Ferretti, Ugo Fratesi, Davide Ponzini, and Valeria Pracchi. "Giving space to multicriteria analysis for complex cultural heritage systems: The case of the castles in Valle D’Aosta Region, Italy." Journal of Cultural Heritage 16, no. 6 (November 2015): 779–89. http://dx.doi.org/10.1016/j.culher.2015.03.003.
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Iamonico, Duilio, and Maurizio Bovio. "Studies on the genus Atriplex (Chenopodiaceae) in Italy VII. Atriplex micrantha and A. oblongifolia." Hacquetia 22, no. 1 (February 7, 2023): 97–105. http://dx.doi.org/10.2478/hacq-2022-0010.
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Abstract A population of Atriplex micrantha subsp. micrantha was found in Valle d’Aosta region representing the first north-western Italian record and the second one at national level. The newly found population (about 100 individuals) covers an area of about 200 m2, and grows on uncultivated and saline lands at 950 m. Despite the inland locality (the species naturally grows in saline places), its occurrence is probably linked to the use of salt-spreading vehicles. Concerning A. oblongifolia, only one Italian record was published up to now (in 1898 in Emilia-Romagna region) but neither any herbarium specimen was traced nor plants were discovered after field surveys. Finally, we studied in detail the types of A. micrantha subsp. micrantha, A. oblongifolia, and A. heterosperma. Lectotypes were designated for A. micrantha and A. oblongifolia (Ledebour’s and Waldstein & Kitaibel’s illustrations), whereas we correct Schwarz’s typification for A. heterosperma (Art. 9.10 ICN).
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Garzoli, Stefania, Vittoria Cicaloni, Laura Salvini, Giacomo Trespidi, Marcello Iriti, and Sara Vitalini. "SPME-GC-MS Analysis of the Volatile Profile of Three Fresh Yarrow (Achillea millefolium L.) Morphotypes from Different Regions of Northern Italy." Separations 10, no. 1 (January 12, 2023): 51. http://dx.doi.org/10.3390/separations10010051.
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Achillea millefolium L. is the most representative plant of the genus Achillea due to its long-standing use. Previous investigations have allowed for the identification of many chemical compounds including phenols, flavonoids, monoterpenes, sesquiterpenes, and their derivatives. However, only a few reports have considered flower color in relation to A. millefolium composition. In this work, the phytochemical analysis on the volatile content of fresh samples of three morphotypes—white, pink and deep pink—collected in different points of the Italian Alpine area, was performed by the SPME-GC-MS technique. The obtained data highlighted a high content of terpenic compounds in all of the investigated morphotypes with a general predominance of monoterpenes over sesquiterpenes with the exception of the white morphotype at collection point A (Saint Marcel, Valle d’Aosta). An in-depth statistical investigation was also carried out to better interpret the distribution of the various components both in relation to the morphotype and collection point.
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Franzo, Giovanni, Maria Luisa Menandro, Claudia Maria Tucciarone, Giacomo Barbierato, Lorenzo Crovato, Alessandra Mondin, Martina Libanora, et al. "Canine Circovirus in Foxes from Northern Italy: Where Did It All Begin?" Pathogens 10, no. 8 (August 9, 2021): 1002. http://dx.doi.org/10.3390/pathogens10081002.
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Canine circovirus (CanineCV) is a recently identified virus affecting both domestic and wild carnivores, including foxes, sometimes in presence of severe clinical signs. Its circulation in wild animals can thus represent a potential threat for endangered species conservation and an infection source for dogs. Nevertheless, no data were available on its circulation in the Alps region of Northern Italy. In the present study, samples collected from 186 foxes in the period 2009–2020 from Valle d’Aosta and Veneto regions were tested using a real-time PCR assay, demonstrating a viral circulation of approximatively 2–5%, depending on the considered regions. Two complete or almost complete genome sequences were obtained, highlighting that the detected strains were part of a so defined “fox only” clade, which suggests that, despite common contact opportunities, Alps foxes are not involved in frequent transmission events to domestic dogs. Such genetic isolation could be at least partially attributed to some sort of independent evolution occurred in the foxes, leading to species barrier. Additionally, CanineCV strains in foxes from Italy were unexpectedly related to those previously identified in foxes from the United Kingdom and Scandinavian area. Combining the history of fox distribution in Europe since the last glacial maximum (LGM) with the viral history allowed us to speculate a long-standing coexistence between European canine circovirus and this host, justifying the peculiar geographic distribution and evolutionary paths of the fox infecting clade.
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Bertulessi, Manuel, Daniele Fabrizio Bignami, Ilaria Boschini, Marco Brunero, Maddalena Ferrario, Giovanni Menduni, Jacopo Morosi, Egon Joseph Paganone, and Federica Zambrini. "Monitoring Strategic Hydraulic Infrastructures by Brillouin Distributed Fiber Optic Sensors." Water 14, no. 2 (January 10, 2022): 188. http://dx.doi.org/10.3390/w14020188.
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We present a case study of a Structural Health Monitoring (SHM) hybrid system based on Brillouin Distributed Fiber Optic Sensors (D-FOS), Vibrating Wire (VW) extensometers and temperature probes for an existing historical water penstock bridge positioned in a mountain valley in Valle d’Aosta Region, Northwestern Italy. We assessed Brillouin D-FOS performances for this kind of infrastructure, characterized by a complex structural layout and located in a harsh environment. A comparison with the more traditional strain monitoring technology offered by VW strain gauges was performed. The D-FOS strain cable has been bonded to the concrete members using a polyurethane-base adhesive, ensuring a rigid strain transfer. The raw data from all sensors are interpolated on a unique general timestamp with hourly resolution. Strain data from D-FOS and VW strain gauges are then corrected from temperature effects and compared. Considering the inherent differences between the two monitoring technologies, results show a good overall matching between strain time series collected by D-FOS and VW sensors. Brillouin D-FOS proves to be a good solution in terms of performance and economic investment for SHM systems on complex infrastructures such as hydropower plants, which involve extensive geometry combined with the need for detailed and continuous strain monitoring.
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Masseroli, Anna, Giovanni Leonelli, Umberto Morra di Cella, Eric P. Verrecchia, David Sebag, Emanuele D. Pozzi, Valter Maggi, Manuela Pelfini, and Luca Trombino. "An integrated approach for tracking climate-driven changes in treeline environments on different time scales in the Valle d’Aosta, Italian Alps." Holocene 31, no. 10 (June 28, 2021): 1525–38. http://dx.doi.org/10.1177/09596836211025974.
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Both biotic and abiotic components, characterizing the mountain treeline ecotone, respond differently to climate variations. This study aims at reconstructing climate-driven changes by analyzing soil evolution in the late Holocene and by assessing the climatic trends for the last centuries and years in a key high-altitude climatic treeline (2515 m a.s.l.) on the SW slope of the Becca di Viou mountain (Aosta Valley Region, Italy). This approach is based on soil science and dendrochronological techniques, together with daily air/soil temperature monitoring of four recent growing seasons. Direct measurements show that the ongoing soil temperatures during the growing season, at the treeline and above, are higher than the predicted reference values for the Alpine treeline. Thus, they do not represent a limiting factor for tree establishment and growth, including at the highest altitudes of the potential treeline (2625 m a.s.l.). Dendrochronological evidences show a marked sensitivity of tree-ring growth to early-summer temperatures. During the recent 10-year period 2006–2015, trees at around 2300 m a.s.l. have grown at a rate that is approximately 1.9 times higher than during the 10-year period 1810–1819, one of the coolest periods of the Little Ice Age. On the other hand, soils show only an incipient response to the ongoing climate warming, likely because of its resilience regarding the changeable environmental conditions and the different factors influencing the soil development. The rising air temperature, and the consequent treeline upward shift, could be the cause of a shift from Regosol to soil with more marked Umbric characteristics, but only for soil profiles located on the N facing slopes. Overall, the results of this integrated approach permitted a quantification of the different responses in abiotic and biotic components through time, emphasizing the influence of local station conditions in responding to the past and ongoing climate change.
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D’Adamo, Idiano, and Massimo Gastaldi. "Sustainable Development Goals: A Regional Overview Based on Multi-Criteria Decision Analysis." Sustainability 14, no. 15 (August 8, 2022): 9779. http://dx.doi.org/10.3390/su14159779.
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The Sustainable Development Goals (SDGs) have the ambitious goal of protecting the planet, eradicating poverty and providing peace and prosperity for all citizens. The challenge is certainly very ambitious and it is necessary to monitor progress toward these SDGs over time. This work is based on the multi-criteria decision analysis and aims to build a framework that can be replicated. A necessary condition for this aim is that the data are available and that they are as recent as possible. This work is based on 28 targets with data mainly from 2019 to 2020 and related to Italian regions. The results show that Trentino Alto Adige and Valle d’Aosta have the best performance and, in general, the northern territory has several realities that perform positively toward the SDGs. Important results are also present at the level of central Italy (in particular Marche and Toscana), while at the southern level the situation is not flourishing, with the sole exception of Abruzzo. The policy implications thus drive the need for targeted green investments for southern regions, projects that nationally promote the “green, bio and circular Made in Italy” brand that can enhance territorial distinctiveness, and the necessary collaboration among regions to be poles of excellence based on available resources and skills.
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Duratorre, Tommaso, Giovanni Bombelli, Giovanni Menduni, and Daniele Bocchiola. "Hydropower Potential in the Alps under Climate Change Scenarios. The Chavonne Plant, Val D’Aosta." Water 12, no. 7 (July 15, 2020): 2011. http://dx.doi.org/10.3390/w12072011.
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Present and prospective climate change will likely affect the hydrological cycle in sensitive areas, such as the Alps, thus impacting water-based activities. A most representative example is hydropower production, i.e., exploitation of water to produce energy. In the Italian Alps hydropower is strictly dependent upon water from snow and ice melt, and both are decreasing in response to global warming. Here, we study the effects of potential climate change scenarios at 2100 upon hydropower production from the Chavonne plant, in Valle d’Aosta region of Italy, a run-of-the-river (ROR) plant taking water from two high altitude glacierized catchments of Val di Cogne, and Valsavarenche. We use Poli-Hydro, a state-of-the-art hydrological model to mimic the hydrological budget of the area, including ice and snow melt share. Projections of the hydrological budget were built until 2100 by means of selected climate change scenarios, under proper downscaling. We used runs of three General Circulation Models (GCMs), EC-Earth, CCSM4, and ECHAM6.0 under three Representative Concentration Pathways RCP 2.6, RCP 4.5, and RCP 8.5 from AR5 of IPCC, and of their updated version under four Shared Socio-Economic Pathways SSP1 2.6, SSP2 4.5, SSP3 7.0, and SSP5 8.5 from AR6. We then assessed hydropower production changes against a recent control run CR period (2005–2015). Mean annual flow is estimated at 14.33 m3 s−1 during CR, with ice melt contribution ca. 2%, and snow melt contribution ca. 44%. Ice cover in 2005 was estimated as 19.2 km2, reaching in 2015, 9.93 km2. Mean hydropower production was estimated at 153.72 GWh during the CR. Temperature would largely increase throughout the century (+0.93 °C on average at the half century, +2.45 °C at the end of the century). The ice covered area would be largely depleted (ca. −86%, −94% respectively), with reduced contribution of ice melt (0.23%, <0.1%, respectively) and snow melt (ca. 37%, 33%, respectively). Precipitation would show uncertain patterns, and hence incoming discharge at the plant would erratically vary (−29% to +24% half century, −27% to +59% end of century). Hydropower production displays a large dependence upon monthly discharge patterns, with mostly positive variations (+2.90% on average at half century, +6.95% on average at end of century), with its change driven by exceedance of plant’s capacity.
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Palombieri, Andrea, Serena Robetto, Federica Di Profio, Vittorio Sarchese, Paola Fruci, Maria Cristina Bona, Giuseppe Ru, et al. "Surveillance Study of Hepatitis E Virus (HEV) in Domestic and Wild Ruminants in Northwestern Italy." Animals 10, no. 12 (December 9, 2020): 2351. http://dx.doi.org/10.3390/ani10122351.
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In industrialized countries, increasing autochthonous infections of hepatitis E virus (HEV) are caused by zoonotic transmission of genotypes (Gts) 3 and 4, mainly through consumption of contaminated raw or undercooked pork meat. Although swine and wild boar are recognized as the main reservoir for Gt3 and Gt4, accumulating evidence indicates that other animal species, including domestic and wild ruminants, may harbor HEV. Herein, we screened molecularly and serologically serum and fecal samples from two domestic and four wild ruminant species collected in Valle d’Aosta and Piemonte regions (northwestern Italy. HEV antibodies were found in sheep (21.6%), goats (11.4%), red deer (2.6%), roe deer (3.1%), and in Alpine ibex (6.3%). Molecular screening was performed using different primer sets targeting highly conserved regions of hepeviruses and HEV RNA, although at low viral loads, was detected in four fecal specimens (3.0%, 4/134) collected from two HEV seropositive sheep herds. Taken together, the data obtained document the circulation of HEV in the geographical area assessed both in wild and domestic ruminants, but with the highest seroprevalence in sheep and goats. Consistently with results from other studies conducted in southern Italy, circulation of HEV among small domestic ruminants seems to occur more frequently than expected.
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Marinelli, Antonella, Camilla Medici, Ascanio Rosi, Veronica Tofani, Silvia Bianchini, and Nicola Casagli. "Shallow Landslides and Rockfalls Velocity Assessment at Regional Scale: A Methodology Based on a Morphometric Approach." Geosciences 12, no. 4 (April 16, 2022): 177. http://dx.doi.org/10.3390/geosciences12040177.
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Velocity is one of the most important parameters to evaluate the damaging potential of a mass movement, but its assessment, especially for extremely rapid landslides, is a complex task. In the literature, several models to assess mass movement velocity exist, but they usually require many detailed parameters, and therefore, they are applicable only to a single slope and not usable for regional-scale analyses. This study aims to propose a simple morphometric methodology, based on the spatialisation of the Energy Line method, to determine the velocity of shallow landslides and rockfalls at a regional scale. The proposed method requires a limited amount of input data (landslide perimeters and a digital elevation model), and its application can be carried out using GIS software and a Matlab code. The test area of this work is the Valle d’Aosta Region (Northern Italy), selected due to its peculiar geological and geomorphological setting that makes this region susceptible to the occurrence of both shallow landslides and rockfalls. Since measured velocity values for rockfalls and shallow landslides were not available, the results obtained with the proposed method have been validated through the implementation of a model in the literature, namely the Gravitational Process Path (GPP) model, for some selected landslides.
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Forlani, G., F. Diotri, U. Morra di Cella, and R. Roncella. "UAV BLOCK GEOREFERENCING AND CONTROL BY ON-BOARD GNSS DATA." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B2-2020 (August 12, 2020): 9–16. http://dx.doi.org/10.5194/isprs-archives-xliii-b2-2020-9-2020.
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Abstract. Unmanned Aerial Vehicles (UAV) are established platforms for photogrammetric surveys in remote areas. They are lightweight, easy to operate and can allow access to remote sites otherwise difficult (or impossible) to be surveyed with other techniques. Very good accuracy can be obtained also with low-cost UAV platforms as far as a reliable ground control is provided. However, placing ground control points (GCP) in these contexts is time consuming and requires accessibility that, in some cases, can be troublesome. RTK-capable UAV platforms are now available at reasonable costs and can overcome most of these problems, requiring just few (or none at all) GCP and still obtaining accurate results. The paper will present a set of experiments performed in cooperation with ARPA VdA (the Environmental Protection Agency of Valle d’Aosta region, Italy) on a test site in the Italian Alps using a Dji Phantom 4 RTK platform. Its goals are: a) compare accuracies obtainable with different calibration procedures (pre- or on-the-job/self-calibration); b) evaluate the accuracy improvements using different number of GCP when the site allows for it; and c) compare alternative positioning modes for camera projection centres determination, (Network RTK, RTK, Post Processing Kinematic and Single Point Positioning).
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Cavalli, Alice, Saverio Francini, Ronald E. McRoberts, Valentina Falanga, Luca Congedo, Paolo De De Fioravante, Mauro Maesano, Michele Munafò, Gherardo Chirici, and Giuseppe Scarascia Scarascia Mugnozza. "Estimating Afforestation Area Using Landsat Time Series and Photointerpreted Datasets." Remote Sensing 15, no. 4 (February 7, 2023): 923. http://dx.doi.org/10.3390/rs15040923.
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Afforestation processes, natural and anthropogenic, involve the conversion of other land uses to forest, and they represent one of the most important land use transformations, influencing numerous ecosystem services. Although remotely sensed data are commonly used to monitor forest disturbance, only a few reported studies have used these data to monitor afforestation. The objectives of this study were two fold: (1) to develop and illustrate a method that exploits the 1985–2019 Landsat time series for predicting afforestation areas at 30 m resolution at the national scale, and (2) to estimate afforestation areas statistically rigorously within Italian administrative regions and land elevation classes. We used a Landsat best-available-pixel time series (1985–2019) to calculate a set of temporal predictors that, together with the random forests prediction technique, facilitated construction of a map of afforested areas in Italy. Then, the map was used to guide selection of an estimation sample dataset which, after a complex photointerpretation phase, was used to estimate afforestation areas and associated confidence intervals. The classification approach achieved an accuracy of 87%. At the national level, the afforestation area between 1985 and 2019 covered 2.8 ± 0.2 million ha, corresponding to a potential C-sequestration of 200 million t. The administrative region with the largest afforested area was Sardinia, with 260,670 ± 58,522 ha, while the smallest area of 28,644 ± 12,114 ha was in Valle d’Aosta. Considering elevation classes of 200 m, the greatest afforestation area was between 400 and 600 m above sea level, where it was 549,497 ± 84,979 ha. Our results help to understand the afforestation process in Italy between 1985 and 2019 in relation to geographical location and altitude, and they could be the basis of further studies on the species composition of afforestation areas and land management conditions.
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Quaglino, Francesco, Luca Manfrino, Luca Cestino, Massimo Giusti, Enrico Mazza, Alessandro Piovesan, Nicola Palestini, Corrado Lauro, and Elena Castellano. "Parathyroid Carcinoma: An Up-to-Date Retrospective Multicentric Analysis." International Journal of Endocrinology 2020 (March 6, 2020): 1–5. http://dx.doi.org/10.1155/2020/7048185.
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Parathyroid carcinoma (PC) is a rare disease responsible for about 1% of primary hyperparathyroidism (PHPT) cases. PC usually has an indolent course, tough to differentiate from the benign causes of PHPT, and the only certain diagnosis is histologic. The gold standard surgical treatment is the en bloc resection associated with the homolateral thyroid loboistmectomy. The aim of this study was to underline the main differences between PC and benign PHPT, along with gathering epidemiological knowledge relative to PC in our region. Data from the regional cancer network (Rete Oncologica del Piemonte e della Valle d’Aosta) since 2007 have been reported, including 21 patients from three hospitals (AO S. Croce e Carle of Cuneo, AOU Città della Salute of Turin, and ASL Città di Torino). The incidence of the disease, gender, age at time of diagnosis, presence of renal and bone symptoms, serum calcium and PTH levels, surgical technique performed, and percentage of recurrence were analysed. PC data were than compared with a series of patients affected by benign PHPT, referred to ASL Città di Torino, Maria Vittoria Hospital, from 2007 to 2019. A PC incidence of 0.05 cases per 100,000 inhabitants was found in our region. Benign forms occurred more frequently in females (p=0.0002), while PC equally occurred in males and females and affected younger patients (p=0.026). Serum calcium and PTH levels were significantly higher in PC patients; accordingly, typical PHPT symptoms were more frequently reported in PC than in benign PHPT. In the PC group, the en bloc resection shows a 13 times lower risk for relapse compared with all the other surgical techniques. PC is equally gender distributed, and the average patients’ age is in the fifth decade of life. It is usually functioning, with greater biochemical activity and multiple symptoms. A not-radical surgical resection is associated with a higher recurrence rate. A meticulous presurgical evaluation of PHPT patients showing PC’s evocative features is mandatory to obtain a complete disease extirpation.
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Bisio, Luigi. "Risultati di trent’anni di ricerche in Piemonte e in Valle d’Aosta sui Dromiini arboricoli: una sintesi (Coleoptera Carabidae)." Memorie della Società Entomologica Italiana, April 21, 2021, 249–59. http://dx.doi.org/10.4081/memoriesei.2020.249.
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Vengono esposti i risultati di trent’anni di ricerche sui Carabidi arboricoli dei generi Dromius, Philorizhus e Calodromius in Piemonte e Valle d’Aosta. Nel corso di tali ricerche sono stati raccolti numerosi esemplari lungo il tronco di alcune essenze arboree. Il maggior numero di individui è stato rinvenuto nella stagione invernale soprattutto sugli aceri (Acer sp.) e su alcune conifere. Viene esaminata la distribuzione in queste due regioni di Dromius (Dromius) agilis (Fabricius, 1787), Dromius (Dromius) angustus angustus Brullé, 1834, Dromius (Dromius) meridionalis Dejean, 1825, Dromius (Dromius) fenestratus (Fabricius, 1794), Dromius (Dromius) quadrimaculatus (Linné, 1758), Philorhizus quadrisignatus (Dejean, 1825) e Calodromius spilotus (Illiger, 1798). Inoltre, vengono illustrati alcuni aspetti dell’ecologia di queste specie.
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Capodaglio, Pietro, Mario Naldi, and Fulvio Simonetto. "Hydrogeological characterization throughout deep geophysical investigations in the Verrès plain (Aosta Valley, north-western Italian Alps)." Acque Sotterranee - Italian Journal of Groundwater 6, no. 1 (March 31, 2017). http://dx.doi.org/10.7343/as-2017-262.
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Although fresh water availability in the Aosta Valley (north-western Italian Alps) is generally granted by glaciers and snow seasonal melting at high altitudes, hydrogeological conditions are not favorable everywhere. Most part of the territory is typically mountainous, with prevailing metamorphic rocks and, secondarily, glacial deposits. Relevant ground water bodies can be found only in the main bottom valley, where glacial excavation, fluvio-glacial and lacustrine sedimentation had maximum intensity, allowing the deposition of important thickness of porous materials. Nevertheless, the geological knowledge of the subsurface is here still poor. These groundwater bodies are monitored by the Environmental Protection Agency of the Aosta Valley Region (ARPA Valle d’Aosta), according to the Italian law (D.Lgs.30/09). This study deals with geophysical investigations in the Verrès plain aquifer (southern Aosta Valley). The main goal of the study has been the first evaluation of groundwater research in potential deep aquifers. Different geophysical methodologies were applied (ERT, TDEM, HVSR, and Re.Mi.), in order to identify the deep aquifer geometry and the rock basement depth.
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Franzone, P., L. Berretta, A. Orecchia, G. Pozzi, and L. Todisco. "Le nuove tecnologie e la tariffazione delle prestazioni radioterapiche: un problema aperto nelle diverse Regioni. La situazione di Piemonte e Valle D’Aosta." Working Paper of Public Health 4, no. 1 (June 15, 2015). http://dx.doi.org/10.4081/wpph.2015.6717.
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Introduzione: In questo lavoro sono state analizzate le problematiche relative alla tariffazione in Radioterapia, tenendo presente l’incremento degli ultimi anni di prestazioni di alta tecnologia ed alto costo. Metodologia: Dopo una breve storia dell’evoluzione del nomenclatore tariffario nazionale si è passati a valutare la situazione del Piemonte e Valle D’Aosta, con la relativa legislazione che ha introdotto e modificato nel tempo il nomenclatore ed il tariffario. Risultati: Negli anni, solo alcune Regioni hanno adottato modifiche del proprio nomenclatore, con diverse modalità, recependo nuove tecnologie e nuove pratiche cliniche. In Oncologia è stato affermato che con una gestione per patologia, le risorse potrebbero essere meglio destinate secondo specifiche strategie mirando ad ottenere determinati risultati, sia in termini di salute, sia in termini economici. (Paderni, 2014) Conclusione: Si rileva necessario un giudizio complessivo sulla opportunità clinica di impiegare una specifica modalità radioterapica in quel particolare paziente, che tenga conto della efficacia della cura, del confronto con altre disponibili e anche del costo (clinico ed economico). Una revisione delle modalità di tariffazione potrebbe evitare sprechi e semplificarne la procedura.
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Del Franco, Mariateresa, Laura Paone, Roberto Novati, Claudio G. Giacomazzi, Maria Bagattini, Chiara Galotto, Pier Giorgio Montanera, Maria Triassi, and Raffaele Zarrilli. "Molecular epidemiology of carbapenem resistant Enterobacteriaceae in Valle d’Aosta region, Italy, shows the emergence of KPC-2 producing Klebsiella pneumoniae clonal complex 101 (ST101 and ST1789)." BMC Microbiology 15, no. 1 (November 9, 2015). http://dx.doi.org/10.1186/s12866-015-0597-z.
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Bonomi, Tullia, Letizia Fumagalli, Valeria Benastini, Marco Rotiroti, Pietro Capodaglio, and Fulvio Simonetto. "Preliminary groundwater modelling by considering the interaction with superficial water: Aosta plain case (northern Italy)." Acque Sotterranee - Italian Journal of Groundwater, March 30, 2013. http://dx.doi.org/10.7343/as-017-13-0041.
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The study is developed through scientific cooperation between the University of Milano-Bicocca and the Regional Agency for Environmental Protection (ARPA) of the Valle d’Aosta Region. Its aim is to produce a decision-support tool to help the Public Administration’manage groundwater and public water supply. The study area is the plain of Aosta, between the cities of Aymavilles and Brissogne; in this area groundwater represents the main source of public water supply. The valley is oriented east-west, along the Baltea for a length of 13.1 km and a width of 4.6 km. The textural and hydrogeological properties of the deposits are strictly connected to glacial deposition and to the subsequent sedimentary processes which took place in glacial, lacustrine and fluvial systems. The study is based on available well information in the Aosta plain - including water wells (133) and piezometers (121) - which have been coded and stored in the well database TANGRAM,. The database facilitates interpretation of the well data, and it allows three-dimensional mapping of subsurface hydrogeological characteristics through database codification and ordinary kriging interpolation. The study is designed to achieve two objectives. The first is to provide the Aosta Public Authorities with a well database in order to simplify groundwater management. The second is to provide Public Authorities with a groundwater flow model of the local aquifer. The model integrates surface and subsurface flows in order to fully account for all important stresses, both natural and anthropogenic, on the groundwater system. It provides a tool for testing hypotheses (such as the impact of new wells) and thereby allows science-based management of the aquifer resource.
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Martinelli, Massimo, Davide Moroni, Luca Bastiani, Simona Mrakic-Sposta, Guido Giardini, and Lorenza Pratali. "High-altitude mountain telemedicine." Journal of Telemedicine and Telecare, June 15, 2020, 1357633X2092102. http://dx.doi.org/10.1177/1357633x20921020.
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Introduction An innovative teleconsultation platform has been designed, developed and validated between summer 2017 and winter 2018, in five mountain huts and in three remote outpatient clinical centres of the Italian region Valle d’Aosta of the Mont Blanc massif area. Methods An ad-hoc videoconference system was developed within the framework of the e-Rés@MONT (Interreg ALCOTRA) European project, to tackle general health problems and high-altitude diseases (such as acute mountain sickness, high-altitude pulmonary and cerebral oedema). The system allows for contacting physicians at the main hospital in Aosta to perform a specific diagnosis and to give specific advice and therapy to the patients in an extreme environment out-hospital setting. At an altitude between 1500–3500 m, five trained nurses performed clinical evaluations (anamnesis, blood pressure, heart rate, oxygen saturation), electrocardiographic and echography monitoring on both tourists and residents as necessary; all of the collected data were sent to the physicians in Aosta. Results A total of 702 teleconsultation cases were performed: 333 dismissed (47%), 356 observed (51%) and 13 immediate interventions (2%). In 30 cases the physicians decided there was no need for helicopter and ambulance rescue intervention and hospital admissions. The main physiological measures, the classified pathologies, the severe cases and the cost savings are described in this article. Discussion The e-Rés@MONT teleconsultation platform has been discussed in terms of treated cases, feasibility, proactivity in reducing complexities, direct and indirect advantages, and diagnostics help; moreover, general and specific pros and cons have been debated, and future steps have been exposed.
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Carella, Emanuele, Angelo Romano, Lorenzo Domenis, Serena Robetto, Raffaella Spedicato, Cristina Guidetti, Monica Pitti, and Riccardo Orusa. "Characterisation of Yersinia enterocolitica strains isolated from wildlife in the northwestern Italian Alps." Journal of Veterinary Research, April 22, 2022. http://dx.doi.org/10.2478/jvetres-2022-0021.
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Abstract Introduction Yersiniosis is a zoonosis causing gastroenteritis, diarrhoea, and occasionally reactive arthritis and septicaemia. Cases are often linked to meat consumption and the most common aetiological agent is the Gram-negative bacilliform Yersinia enterocolitica bacterium. The occurrence of Yersinia spp. among wild animals has mostly been studied in wild boar, but it has seldom been in other species. Material and Methods A total of 1,868 faecal samples from animals found dead or hunted were collected between 2015 and 2018 in the Valle d’Aosta region of the northwestern Italian Alps. Alpine ibex faecal samples were collected during a health monitoring program in 2018. Bacteria were isolated via PCR and confirmed as Y. enterocolitica biochemically. Strain antimicrobial susceptibility was tested by Kirby–Bauer disc diffusion, and the presence of virulence factors and antimicrobial resistance genes was investigated using whole-genome sequencing. Results Yersinia enterocolitica strains of biotype 1A were detected in six faecal samples from red deer (0.93%), roe deer (0.49%) and red foxes (0.7%). Strains found in beech martens (3.57%) and Alpine ibex (2.77%) belonged to biotypes 1B and 5, respectively and harboured the pYPTS01 plasmid that had only been detected in Y. pseudotuberculosis PB1/+. All the isolates were resistant to ampicillin and erythromycin. Conclusion The biovar 1A strains exhibited different virulence factors and behaved like non-pathogenic commensals. The strain from an Alpine ibex also harboured the self-transmissible pYE854 plasmid that can mobilise itself and the pYPTS01 plasmid to other strains. The beech marten could be considered a sentinel animal for Y. enterocolitica. Phenotypic resistance may account for the ability of all the strains to resist β-lactams.
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Bonomi, Tullia, Letizia Fumagalli, Marco Rotiroti, Alberto Bellani, and Angelo Cavallin. "The hydrogeological well database TANGRAM©: a tool for data processing to support groundwater assessment." Acque Sotterranee - Italian Journal of Groundwater 3, no. 2 (June 30, 2014). http://dx.doi.org/10.7343/as-072-14-0098.
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At the Department of Earth and Environmental Sciences of the University of Milano-Bicocca (DISAT-UNIMIB), a hydrogeological well database, called TANGRAM©, has been developed and published on line at www.TANGRAM.samit.unimib.it, developing an earlier 1989 DOS version. This package can be used to store, display, and process all data related to water wells, including administrative information, well characteristics, stratigraphic logs, water levels, pumping rates, and other hydrogeological information. Currently, the database contains more than 39.200 wells located in the Italian region of Lombardy (90%), Piedmont (9%) and Valle d’Aosta (1%). TANGRAM© has been created both as a tool for researches and for public administration’s administrators who have projects in common with DISAT-UNIMIB. Indeed, transferring wells data from paper into TANGRAM© offers both an easier and more robust way to correlate hydrogeological data and a more organized management of the administrative information. Some Administrations use TANGRAM© regularly as a tool for wells data management (Brescia Province, ARPA Valle Aosta). An innovative aspect of the database is the quantitative extraction of stratigraphic data. In the part of the software intended for research purposes, all well logs are translated into 8-digit alphanumeric codes and the user composes the code interpreting the description at each stratigraphic level. So the stratigraphic well data can be coded, then quantified and processed. This is made possible by attributing a weight to the digits of the code for textures. The program calculates the weighted percentage of the chosen lithology, as related to each individual layer. These extractions are the starting point for subsequent hydrogeological studies: well head protection area, reconstruction of the dynamics of flow, realization of the quarry plans and flux and transport hydrogeological models. The results of a two-dimensional distribution of coarse, medium and fine sized material in the first 80 meters of depth are presented here for a study area located within the Province of Brescia (Italy).