46 research outputs found

    Experimental analysis of the station keeping response of a double-barge float-over system with an elastically scaled physical model

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    In this paper, an experimental investigation of the global response to waves relative to a newly developed float-over concept by TechnipFMC Rome Operating Center for transportation, installation and decommissioning of the off-shore platform topside is presented. A flexible scaled model of the float-over system was tested in the wave basin to determine the range of the sea-state conditions for which the response of the catamaran float-over is acceptable for mating operations. The present analysis is part of a more extensive experimental campaign which has involved also the use of a scaled rigid physical model (Dessi et al., 2016) and numerical simulations for which the collected data provide also a validation database

    FLOWERED-GeoDBapp: applicazione per mobile basata sui crowd- generating data

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    Questo studio è parte del progetto H2020 FLOWERED (de-FLuoridation technologies for imprOving quality of WatEr and agRo-animal products along the East African Rift Valley in the context of aDaptation to climate change), coordinato dal Dipartimento di Scienze chimiche e geologiche dell’Università di cagliari, che vede la partecipazione di 14 partner di cui 5 provenienti dalla regione della Rift Valley africana (Etiopia, Kenya e Tanzania). Obiettivo generale del progetto iniziato nel 2016 e di durata triennale, è lo studio nelle tre aree test africane di un sistema di de - fluorizzazione dell’acqua contaminata per cause naturali basato sia su tecnologie adattabili al contesto sociale che su un attento sistema di gestione della risorsa acqua. Pertanto uno degli obiettivi del progetto è il coinvolgimento delle comunità locali nel processo sia di acquisizione delle conoscenze che di proposta dei sistemi di intervento. In questo ambito è stato proposto lo sviluppo di una piattaforma di condivisione di dati ambientali e socio- economici basata sula raccolta di dati da parte dei tecnici locali. La disponibilità e diffusione di tecnologie di accesso alla rete internet anche in territori remoti e con particolari condizioni sociali può consentire pertanto l’utilizzo di strumenti di gestione di dati geografici attraverso esperienze di PPGIS (Public Participation Geographic Information System) e VGI (Voluntary Geographic Information). In questo ambito si inserisce l’applicazione FLOWERED-GeoDBapp, che attraverso un processo di crowd-generating data intende proporre un sistema di passaggio land cover-land use attraverso il popolamento di un GEO DB basato su una mappa di land cover da classificazione di dati da satellite ad alta risoluzione con dati specifici sull’uso del territorio inseriti localmente. Sarà pertanto proposta una legenda di land use basata sulla raccolta di dati non solo di natura ambientale ma anche sociale, culturale ed economica, utilizzando le conoscenze locali e rendendo poi disponibili ai tecnici locali e agli amministratori le informazioni necessarie alla gestione delle risorse e in particolare dell’acqua

    Cystic echinococcosis in wild boars (Sus scrofa) from southern Italy: Epidemiological survey and molecular characterization.

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    Cystic Echinococcosis (CE) caused by Echinococcus granulosus sensu lato (s.l.) is one of the most important parasitic zoonotic diseases in the world and it represents an important public health and socio-economic concern. In the Mediterranean basin, CE is widespread and it is endemic in Italy, with major prevalence in southern areas. Several studies have investigated CE in domestic pigs, however, such data in wild boars are scant. In the last decades the wild boar population in Italy has increased and this ungulate could play an important role in the spreading ofCEinthewild.Here wereporton theprevalenceandfertility rateofhydatid cystsinwildboarsthat were shot during two hunting seasons (2016–2017) in the Campania region of southern Italy. For each animal, a detailed inspection of the carcass and organs (lungs, liver and spleen) was performed and when cysts were found, their number, morphology and fertility were determined by visual and microscopic examination. Cysts were classified morphologically as fertile, sterile, caseous and calcified. Protoscoleces and germinal layers were collected from individual cysts and DNA was extracted to identify different strains/genotypes of E. granulosus s.l. Outofatotalof2108wildboars93(4.4%)werefoundpositiveforCE.Infectedanimalswere45malesand48 females, aged between 1 and 8 years. The average number of cysts per wild boar was 1.3 (min 1 - max 13). The total number of cysts collected was 123, of which 118 (95.9%) in the liver, 4 (3.3%) in the lungs and 1 (0.8%) in the spleen. Of all analyzed cysts, 70 (56.9%) were fertile and 53 (43.1%) sterile/acephalous. The presence of fertile cysts in 19.4% of CE-positive animals is noteworthy. Overall, molecular diagnosis showed 19 wild boars infected with the pig strain (G7)

    Care pathways models and clinical outcomes in disorders of consciousness

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    Objective: Patients with Disorders of consciousness, are persons with extremely low functioning levels and represent a challenge for health care systems due to their high needs of facilitating environmental factors. Despite a common Italian health care path-way for these patients, no studies have analyzed information on how each region have implemented it in its welfare system correlating data with patients’ clinical outcomes. Materials and Methods: A multicenter observational pilot study was realized. Clinicians collected data on the care pathways of patients with Disorder of consciousness by ask-ing 90 patients’ caregivers to complete an ad hoc questionnaire through a structured phone interview. Questionnaire consisted of three sections: sociodemographic data, description of the care pathway done by the patient, and caregiver evaluation of health services and information received.Results: Seventy- three patients were analyzed. Length of hospital stay was different across the health care models and it was associated with improvement in clinical diag-nosis. In long- term care units, the diagnosis at admission and the number of caregivers available for each patient (median value=3) showed an indirect relationship with worsening probability in clinical outcome. Caregivers reported that communication with professionals (42%) and the answer to the need of information were the most critical points in the acute phase, whereas presence of Non- Governmental Organizations (25%) and availability of psychologists for caregivers (21%) were often missing during long-term care. The 65% of caregivers reported they did not know the UN Convention on the Rights of Persons with Disabilities. Conclusion: This study highlights relevant differences in analyzed models, despite a recommended national pathway of care. Future public health considerations and ac-tions are needed to guarantee equity and standardization of the care process in all European countries

    Altered cholesterol ester cycle in ex vivo skin fibroblasts from Alzheimer patients

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    Recent studies in both animal and cell models of Alzheimer's disease (AD) indicated that sub-cellular cholesterol distribution seems to regulate amyloid-beta (A[beta]) generation in the brain. In particular, cholesterol-esters (CE), rather than total cholesterol levels, appear directly correlated with A[beta] production. Here we observed that, similarly to brain cells, skin fibroblasts obtained from AD patients produce and accumulate more CE than skin fibroblasts from age-matched healthy controls do. AD fibroblasts also exhibited a 2 fold increase in the expression of ACAT1, in addition to lower levels of SREBP2, nCEH, Caveolin-1 and ABCA1 mRNA levels, all of which are involved in the CE cycle. HMGCoA-reductase and LDL-receptor mRNAs levels did not show statistically significant changes in AD, compared to non-AD, cells. Furthermore, although APP mRNA did not significantly vary, neprilysin (NEP), the most important enzyme in the proteolysis of A[beta], was expressed at very low levels in skin fibroblasts of sporadic AD patients. Our results contribute to the concept that AD may be the consequence of a basic and systemic defect in the CE cycle. Moreover, our results identify new possible targets for the diagnosis, prevention, and cure or, at least, amelioration of the symptoms of AD

    accumulation of cholesterol esters in ex vivo lymphocytes from scrapie susceptible sheep and in scrapie infected mouse neuroblastoma cell lines

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    Our studies on the role of cholesterol homeostasis in the pathogenesis of scrapie in sheep, revealed abnormal accumulation of cholesterol esters in brains and in ex vivo skin fibroblasts from genetically scrapie-susceptible, as compared to sheep with resistant genotype. We now report that PBMCs isolated from scrapie-susceptible sheep, as well as mouse neuroblastoma cell lines persistently infected with two different mouse-adapted strains of scrapie, showed similar alterations with up to 3-fold higher cholesterol ester levels than their resistant or uninfected counterparts. Treatments with drugs that interfere with intracellular cholesterol metabolism strongly reduced accumulation of cholesterol esters in scrapie-infected cell lines, whereas had significantly lower, or no effect, in uninfected cell line. These data add support to our hypothesis that accumulation of cholesterol esters may represent a biological marker of susceptibility to prion infection and a potential molecular target for prion inhibitors

    Accumulation of neutral lipids in peripheral blood mononuclear cells as a distinctive trait of Alzheimer patients and asymptomatic subjects at risk of disease

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    <p>Abstract</p> <p>Background</p> <p>Alzheimer's disease is the most common progressive neurodegenerative disease. In recent years, numerous progresses in the discovery of novel Alzheimer's disease molecular biomarkers in brain as well as in biological fluids have been made. Among them, those involving lipid metabolism are emerging as potential candidates. In particular, an accumulation of neutral lipids was recently found by us in skin fibroblasts from Alzheimer's disease patients. Therefore, with the aim to assess whether peripheral alterations in cholesterol homeostasis might be relevant in Alzheimer's disease development and progression, in the present study we analyzed lipid metabolism in plasma and peripheral blood mononuclear cells from Alzheimer's disease patients and from their first-degree relatives.</p> <p>Methods</p> <p>Blood samples were obtained from 93 patients with probable Alzheimer's disease and from 91 of their first-degree relatives. As controls we utilized 57, cognitively normal, over-65 year-old volunteers and 113 blood donors aged 21-66 years, respectively. Data are reported as mean ± standard error. Statistical calculations were performed using the statistical analysis software Origin 8.0 version. Data analysis was done using the Student t-test and the Pearson test.</p> <p>Results</p> <p>Data reported here show high neutral lipid levels and increased ACAT-1 protein in about 85% of peripheral blood mononuclear cells freshly isolated (<it>ex vivo</it>) from patients with probable sporadic Alzheimer's disease compared to about 7% of cognitively normal age-matched controls. A significant reduction in high density lipoprotein-cholesterol levels in plasma from Alzheimer's disease blood samples was also observed. Additionally, correlation analyses reveal a negative correlation between high density lipoprotein-cholesterol and cognitive capacity, as determined by Mini Mental State Examination, as well as between high density lipoprotein-cholesterol and neutral lipid accumulation. We observed great variability in the neutral lipid-peripheral blood mononuclear cells data and in plasma lipid analysis of the subjects enrolled as Alzheimer's disease-first-degree relatives. However, about 30% of them tend to display a peripheral metabolic cholesterol pattern similar to that exhibited by Alzheimer's disease patients.</p> <p>Conclusion</p> <p>We suggest that neutral lipid-peripheral blood mononuclear cells and plasma high density lipoprotein-cholesterol determinations might be of interest to outline a distinctive metabolic profile applying to both Alzheimer's disease patients and asymptomatic subjects at higher risk of disease.</p

    Use of Telemedicine Healthcare Systems in Pediatric Assistance at Territorial Level: Consensus Document of the Italian Society of Telemedicine (SIT), of the Italian Society of Preventive and Social Pediatrics (SIPPS), of the Italian Society of Pediatric Primary Care (SICuPP), of the Italian Federation of Pediatric Doctors (FIMP) and of the Syndicate of Family Pediatrician Doctors (SIMPeF)

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    Technological innovation can contribute to a reorganization of healthcare, particularly by supporting the shift in the focus of care from the hospital to the territory, through innovative citizen-centered models, and facilitating access to services in the territory. Health and social care delivery modalities, enabled by telemedicine, are crucial in this regard. The objective of this Consensus document, written by the main Italian Scientific Societies involved in the use of telemedicine in pediatrics, is to define a standard for its use at the territorial level in various declinations in the pediatric field; this paper also identifies priority areas for its application and the types of services that most require intervention and investment. The changes that are underway in digital transformation in all sectors are unstoppable, and for the digital transformation to take place in a productive sense, the contribution of not only all health professionals, but also of patients, is necessary. From this perspective, authors from different backgrounds were involved in the drafting of this Consensus and, in the future, other figures, primarily patients, are expected to be involved. In fact, this belongs to the vision of connected care, in which the citizen/patient actively participates in the treatment path so that they are assisted in a personalized, predictive and preventive way. The future scenario must be able to provide for the involvement of patients from the initial stages of planning any treatment path, even in the pediatric age, and increasing, where possible, the proximity of the health service to the families

    Information and Training on the Use of Telemedicine in Pediatric Population: Consensus Document of the Italian Society of Telemedicine (SIT), of the Italian Society of Preventive and Social Pediatrics (SIPPS), of the Italian Society of Pediatric Primary Care (SICuPP), of the Italian Federation of Pediatric Doctors (FIMP), and of the Syndicate of Family Pediatrician Doctors (SIMPeF)

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    Telemedicine has entered the daily lives of doctors, although the digital skills of healthcare professionals still remain a goal to be achieved. For the purpose of a large-scale development of telemedicine, it is necessary to create trust in the services it can offer and to favor their acceptance by healthcare professionals and patients. In this context, information for the patient regarding the use of telemedicine, the benefits that can be derived from it, and the training of healthcare professionals and patients for the use of new technologies are fundamental aspects. This consensus document is a commentary that has the aim of defining the information on and training aspects of telemedicine for pediatric patients and their caregivers, as well as pediatricians and other health professionals who deal with minors. For the present and the future of digital healthcare, there is a need for a growth in the skills of professionals and a lifelong learning approach throughout the professional life. Therefore, information and training actions are important to guarantee the necessary professionalism and knowledge of the tools, as well as a good understanding of the interactive context in which they are used. Furthermore, medical skills can also be integrated with the skills of various professionals (engineers, physicists, statisticians, and mathematicians) to birth a new category of health professionals responsible for building new semiotics, identifying criteria for predictive models to be integrated into clinical practice, standardizing clinical and research databases, and defining the boundaries of social networks and new communication technologies within health services

    Use of Telemedicine Healthcare Systems in Children and Adolescents with Chronic Disease or in Transition Stages of Life: Consensus Document of the Italian Society of Telemedicine (SIT), of the Italian Society of Preventive and Social Pediatrics (SIPPS), of the Italian Society of Pediatric Primary Care (SICuPP), of the Italian Federation of Pediatric Doctors (FIMP) and of the Syndicate of Family Pediatrician Doctors (SIMPeF)

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    : Telemedicine is considered an excellent tool to support the daily and traditional practice of the health profession, especially when referring to the care and management of chronic patients. In a panorama in which chronic pathologies with childhood onset are constantly increasing and the improvement of treatments has allowed survival for them into adulthood, telemedicine and remote assistance are today considered effective and convenient solutions both for the chronic patient, who thus receives personalized and timely assistance, and for the doctors, who reduce the need for direct intervention, hospitalizations and consequent management costs. This Consensus document, written by the main Italian Scientific Societies involved in the use of telemedicine in pediatrics, has the objectives to propose an organizational model based on the relationships between the actors who participate in the provision of a telemedicine service aimed at minors with chronic pathologies, identifying specific project links between the areas of telemedicine in the developmental age from the first 1000 days of life to the age adult. The future scenario will have to be able to integrate digital innovation in order to offer the best care to patients and citizens. It will have to be able to provide the involvement of patients from the very beginning of the design of any care pathway, increasing where possible the proximity of the health service to citizens
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