1,721,706 research outputs found
A survey of the main behavioural and natatorial issues observed in non-genetically selected dog breeds trained for water rescue activities
Full text link: In this survey, we collected information on non-genetically selected pure breed dogs trained for water rescue considering the issues highlighted by the instructors of the Italian School of Water Rescue Dogs (S.I.C.S.) in Italy over a one-year period. A questionnaire was developed and emailed to thirteen S.I.C.S. sections asking for information on the number of certificates and services carried out in one year, the pure breed dogs used, and the main problems detected in each breed. Only six questionnaires were received and processed. The results revealed that a total of 82 (14.0 as average value) dog-human dyads with certificates with a total number of 157 (26.17 as average value) services recorded in one summer All sections reported certified dogs from three genetically selected breeds (Newfoundland, Labrador, and Golden Retriever), mixed-breed dogs, and other pure-breed dogs, such as Bernese Mountain Dog, Doberman, Pitbull, German Shepherd, and American Staffordshire Terrier dogs. The main problems highlighted in non-genetically selected pure breed dogs were natatorial, linked to an incorrect set-up or to a lack of tail and/or undercoat. To solve these problems, neoprene underwear and/or floating harnesses were used, and the instructors tried to improve the swimming attitude
Educational Interpreting and Multilingualism – Interpretación simultánea en la clase académica
No full textAl hilo de la experiencia de la Universidad de Stellenbosch en Sudáfrica, entre las primeras en el mundo en desarrollar un servicio de interpretación simultánea de las clases académicas, en enero de 2020 el Departamento de Interpretación y Traducción de la Universidad de Bolonia puso en marcha el proyecto Educational Interpreting and Multilingualism – Interpretazione simultanea delle lezioni accademiche [Interpretación simultánea de las clases académicas]. El proyecto prevé la creación de un servicio de interpretación simultánea entre italiano e inglés (con vistas a la expansión a otros idiomas, como por ejemplo el español) dentro de la Universidad de Bolonia, involucrando a intérpretes-tutores con formación académica en interpretación de conferencias y bilateral, además de una experiencia profesional consolidada en el mercado de la interpretación.
La finalidad principal del proyecto es promover el multilingüismo en los cursos y asignaturas internacionales de varios departamentos de la Universidad de Bolonia, facilitando la presentación de contenidos por parte de los docentes y, por otro lado, la comprensión de los contenidos mismos por parte de los estudiantes. Además, el intérprete académico desarrolla en este contexto un papel de facilitador de la comunicación ya que tiene la visibilidad para comunicar directamente con el docente y los estudiantes, favoreciendo aún más los procesos de eseñanza y aprendizaje.
En esta ponencia se presentarán los resultados de los dos primeros años de experimentación en los cursos y departamentos de la Universidad de Bolonia involucrados en el proyecto, junto a la modalidad de organización del servicio (de presencial a remoto, con todo lo que conlleva), las aplicaciones didácticas para la formación de intérpretes académicos especializados y las nuevas posibilidades de investigación que puedan surgir a partir del presente proyecto (por ejemplo, la construcción de un corpus de interpretación académica, ya que contamos con más de 300 horas de grabaciones, tanto de discursos originales como interpretados)
Smart approaches to food waste final disposal
Full text linkFood waste, among the organic wastes, is one of the most promising substrates to be used as a renewable resource. Wide availability of food waste and the high greenhouse gas impacts derived from its inappropriate disposal, boost research through food waste valorization. Several innovative technologies are applied nowadays, mainly focused on bioenergy and bioresource recovery, within a circular economy approach. Nevertheless, food waste treatment should be evaluated in terms of sustainability and considering the availability of an optimized separate collection and a suitable treatment facility. Anaerobic codigestion of waste-activated sludge with food waste is a way to fully utilize available anaerobic digestion plants, increasing biogas production, energy, and nutrient recovery and reducing greenhouse gas (GHG) emissions. Codigestion implementation in Europe is explored and discussed in this paper, taking into account different food waste collection approaches in relation to anaerobic digestion treatment and confirming the sustainability of the anaerobic process based on case studies. Household food waste disposal implementation is also analyzed, and the results show that such a waste management system is able to reduce GHG emissions due to transport reduction and increase wastewater treatment performance
Metodo di pretrattamento a bassa potenza specifica della frazione organica di rifiuto solido urbano finalizzato al processo di codigestione ee/o al'ottimizzazione dele fasi d denitrificazionee defosfatazione biologica
No full textAnaerobic co-digestion of waste activated sludge and the OF-MSW: The expereinces of Viareggio and Treviso plants (Italy)
No full textThe paper presents the results of two full-scale applications of the anaerobic co-digestion process of waste activated sludge together with the organic fraction of municipal solid wastes. The experiences were carried out at Viareggio and Treviso wastewater treatment plants (Italy). In the first plant, 3 tons per day of source sorted OFMSW were co-digested with waste activated sludge, increasing the organic loading rate from 1.0 to 1.2 kgTVS/m3d. This determined a 50% increase in biogas production. At Treviso WWTP, which has been working for 2 years, some 10 tons per day of separately collected OFMSW are treated using a low-energy consumption sorting line, which allows the removal of 99% and 90% of metals and plastics respectively. In these conditions, the biogas yield increased from 3,500 up to 17,500 m3/month. Industrial costs were evaluated less than 50 € per ton of organic waste, while the payback time was calculated as two years
Fast digester start-up under mesophilic conditions using thermophilic inoculum
No full textThe paper deals with fast procedures adopted for starting-up anaerobic digesters treating biological wastes. In particular, results related to the behaviour of a digester treating sewage sludge with a fast start-up (in 22 days) and using a thermophilic inoculum are presented and compared with those related to a passage from mesophilic to thermophilic temperatures (from 37 to 55°C, in 31 days) and to a direct re-start-up under thermophilic conditions (27 days). In the latter cases, the organic fraction of municipal solid wastes was digested. Main findings concern: the identification of two retention times as the necessary period for reaching the first steady-state condition; the usefulness of performing a real time process monitoring the observation that thermophilic inoculum allows better digester performances in the first start-up period, a finding however, that requires more experimental work
Canine filarial infections in an area of Central Italy (Tuscany-Latium border) historically free from the disease
No full textThis paper reports the presence of various species of filarial nematodes in dogs in an area of central Italy at the border between two regions (Tuscany-Latium), which had previously been free of infection and for which there are no epidemiological data in the literature. Blood and serum samples from a total of 363 adult dogs were collected during in 2016/17 and 2018/19 in the provinces of Grosseto (Tuscany) and Viterbo (Latium). The dogs were of different breeds or mixed breeds, randomly selected, and living in public kennels or privately owned. Of the 363 samples tested, 55 dogs were positive to Knott's test for microfilariae (prevalence 15.1%; 95% confidence interval: 11.5–18.8%). Dirofilaria immitis was found in 25 cases (prevalence 6.9%; 95% CI 4.3–9.5%), D. repens in 27 (7.4%, 95% CI 4.7–10.1%) and Acanthocheilonema reconditum in 3 (0.8%, 95% CI 0.1–1.7%). Out of 55 dogs, only four were infested with both D. immitis and D. repens (1.1%, 95% CI 0.001–2.2%)
Rheological properties help the monitoring of anaerobic digestion and co-digestion processes
No full textANALYTICAL EXTRACTION AND ENVIRONMENTAL REMOVAL OF ALKYLBENZENE SULFONATES, NONYLPHENOL AND NONYLPHENOL MONOETHOXYLATE FROM DATED SLUDGE-ONLY LANDFILLS
No full textExhaustive extraction of linear (LAS) and branched (TPS) alkylbenzene sulphonates, nonylphenol (NP) and nonylphenol monoethoxylate (NP1EO) from landfilled sludge were attained by using a polar solvent (methanol) and by adding sodium hydroxide (20%, w/w) to the dry sludge. In the absence of NaOH, or if moderately polar (dichloromethane) to apolar (hexane) solvents were used, poor extraction efficiencies ( 90%) over the same time period. The remarkably different behaviour of these compounds was ascribed to the landfill operating conditions, to be anaerobic when no biodegradation was observed, and aerobic when the title compounds were removed.Exhaustive extraction of linear (LAS) and branched (TPS) alkylbenzene sulphonates, nonylphenol (NP) and nonylphenol monoethoxylate (NP1EO) from landfilled sludge were attained by using a polar solvent (methanol) and by adding sodium hydroxide (20%, w/w) to the dry sludge. In the absence of NaOH, or if moderately polar (dichloromethane) to apolar (hexane) solvents were used, poor extraction efficiencies ( 90%) over the same time period. The remarkably different behaviour of these compounds was ascribed to the landfill operating conditions, to be anaerobic when no biodegradation was observed, and aerobic when the title compounds were removed
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