137 research outputs found

    Arianna: towards a new paradigm for assistive technology at home

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    Providing elderly and people with special needs to retain their independence as long as possible is one of the biggest challenges of the society of tomorrow. Teseo, a startup company spinoff from the University of Genoa, aims at accelerating the transition towards a sustainable healthcare system. Teseo's first concept and product, Arianna, allows for the automated recognition of activities of daily living at home and acts as a wellbeing and healthcare personalized assistant. This abstract outlines the main concepts underlying its features and capabilities.Comment: Paper accepted at the Eight Italian Forum on Ambient Assisted Living (ForItAAL 2017

    RICO-MR: An Open-Source Architecture for Robot Intent Communication through Mixed Reality

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    This article presents an open-source architecture for conveying robots' intentions to human teammates using Mixed Reality and Head-Mounted Displays. The architecture has been developed focusing on its modularity and re-usability aspects. Both binaries and source code are available, enabling researchers and companies to adopt the proposed architecture as a standalone solution or to integrate it in more comprehensive implementations. Due to its scalability, the proposed architecture can be easily employed to develop shared Mixed Reality experiences involving multiple robots and human teammates in complex collaborative scenarios.Comment: 6 pages, 3 figures, accepted for publication in the proceedings of the 32nd IEEE International Conference on Robot and Human Interactive Communication (RO-MAN

    A 2D laser rangefinder scans dataset of standard EUR pallets

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    open5siopenIhab Mohamed, Alessio Capitanelli, Fulvio Mastrogiovanni, Stefano Rovetta, Renato ZaccariaMohamed, Ihab; Capitanelli, Alessio; Mastrogiovanni, Fulvio; Rovetta, Stefano; Zaccaria, RENATO UGO RAFFAEL

    Micronutrient Deficiencies and Nutritional Pattens as Possible Risk Factors in the Onset of Retinopathy in Type 2 Diabetic Patients

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    Diabetic retinopathy (DR) is a common complication in diabetes. Many studies have demonstrated a strong correlation between diet and the onset and progression of diabetes, but only few focused on possible link between nutritional patterns, micronutrient deficiency and DR. In this observational study, by using 10-day food diary recordings, we analyzed the eating habits of 34 patients affected by DR, 35 controls with a long history of type 2 diabetes mellitus (T2DM) but no retinopathy and 35 matched healthy subjects. Macro- and micronutrient intakes were calculated based on the Italian food composition database of the Center of Research for Food and Nutrition (CREA) by using a validated nutritional software. Moreover, the adherence to the Mediterranean diet (MD) was evaluated by using a widely adopted questionnaire. Respect to the type 2 diabetic group the average daily intake of vitamin A (total retinol activity equivalents) was strongly reduced in DR group (524 vs 1072 mg/d, P<0.01); those of vitamin C was also reduced in DR group (48.0 vs 85.2 mg/d, P<0.01) as well as vitamin D (3.73 vs 5.40 mg/d, P<0.01). Copper average daily intake was lower in DR group (0,50 vs 0,82 mg/d, P<0.01) and similarly potassium intake was lower in this group respect to the type 2 non retinopathic diabetic one (1271 vs 2180 mg/d, P<0.01). DR patients also showed a significatively lower adherence to the MD respect to the T2DM patients and to the healthy subjects. This study confirmed a possible role of unhealthy nutritional patterns and micronutrient deficiency in the development and progression of the diabetic retinopathy

    Roboti i inteligentni prostori: prikazivanje znanja i procjena konteksta u raspodijeljenim sustavima

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    Ubiquitous Robotics is a novel paradigm aimed at addressing the coordinated behaviour of robots in environments that are intelligent per se. To this aim, suitable methods to enforce cooperative activities must be assessed. In this article, a formalism to encode spatio-temporal situations whose occurrences must be detected by a contextaware system is introduced. The Situation Definition Language is a tool used to specify relationships among classes of sensory data in distributed systems (such as those adhering to the Ubiquitous Robotics paradigm), without posing any assumption on how data themselves are acquired. The capabilities offered by the language are discussed with respect to a real-world scenario, where a team of mobile robots cooperates with an intelligent environment to perform service tasks. Specifically, the article focuses on the system ability to combine in a centralized representation information originating from distributed sources, either mobile (i.e., the robots) or fixed (i.e., the intelligent devices in the network).Sveprisutna robotika nova je paradigma namijenjena koordiniranom ponašanju robota u prostorima koji su sami po sebi inteligentni. Radi toga, nužna je procjena primjerenih metoda za provedbu kooperativnih aktivnosti. U ovome se članku predstavlja formalizam za zapisivanje prostorno-vremenskih događaja koji moraju biti detektirani u kontekstno osviještenom sustavu. Situation Definition Language je alat koji se koristi za specifikaciju odnosa među klasama senzorskih podataka u raspodijeljenim sustavima (poput onih koji se pridržavaju paradigme sveprisutne robotike), bez ikakvih pretpostavki nad načinom prikupljanja podataka. Mogućnosti koje jezik nudi analizirane su za stvarne slučajeve, gdje je tim mobilnih robota surađivao s inteligentnim prostorom radi izvođenja uslužnih zadataka. Članak se posebice fokusira na mogućnost sustava da na centraliziran način objedini informacije iz raspodijeljenih izvora, bili oni mobilni (tj. od robota) ili stacionarni (tj. od inteligentnih uređaju na mreži)

    Robot-Assisted Surveillance in Large Environments

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    This paper introduces ANSER, a mobile robot designed to perform surveillance in wide indoor and outdoor areas, such as civilian airports, warehouses or other facilities. The paper describes in details the robot subsystems, focusing on its capabilities in autonomous surveillance, localization and navigation

    Association Of Anticardiolipin Antibody And C677t In Methylenetetrahydrofolate Reductase Mutation In Women With Recurrent Spontaneous Abortions: A New Path To Thrombophilia?

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    Recurrent spontaneous abortion (RSA) has been associated with venous thrombosis in the mother. Acquired and inherited thrombophilia factors are possible causes. To evaluate the association between thrombogenic factors and recurrent spontaneous abortion. Case-control study. Centro de Atenção Integral à Saúde da Mulher, Universidade Estadual de Campinas. 40 ml of blood was collected from 88 women attending an RSA clinic and 88 fertile women attending a family planning clinic, to evaluate the presence of acquired and inherited thrombophilia factors. Anticardiolipin antibodies (ACA), lupus anticoagulant and deficiencies of proteins C and S and antithrombin III were evaluated by enzyme-linked immunosorbent assay (ELISA), dilute Russell Viper Venom time (dRVVT), coagulometric and chromogenic methods. DNA was amplified by the polymerase chain reaction (PCR) to study factor V Leiden and G20210A mutations in the prothrombin gene and C677T mutation in the methylenetetrahydrofolate reductase (MTHFR) gene. Data were analyzed using odds ratios and a regression model for age adjustment. Fishers exact test was used to evaluate statistical relationships between associated factors and RSA. ACA was detected in 11 women with RSA and one fertile woman. Heterozygous C677T was detected in 59 women with RSA and 35 fertile women. Concomitant presence of ACA and C677T was found in eight women with RSA and no fertile women (p < 0.01). The meaning of the association between C677T mutation in the MTHFR gene and ACA is still not clear. It is possible that an inherited factor that alone would not strongly predispose a woman to thrombosis could, when associated with an acquired factor, start the process and increase the likelihood of thrombosis expression. ACA and C677T in the MTHFR gene are statistically associated with RSA. The association of these two conditions is a new finding in thrombogenic factors and RSA.12315-2

    Knowledge representation for culturally competent personal robots: requirements, design principles, implementation, and assessment

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    Culture, intended as the set of beliefs, values, ideas, language, norms and customs which compose a person’s life, is an essential element to know by any robot for personal assistance. Culture, intended as that person’s background, can be an invaluable source of information to drive and speed up the process of discovering and adapting to the person’s habits, preferences and needs. This article discusses the requirements posed by cultural competence on the knowledge management system of a robot. We propose a framework for cultural knowledge representation that relies on (i) a three layer ontology for storing concepts of relevance, culture specific information and statistics, person-specific information and preferences; (ii) an algorithm for the acquisition of person-specific knowledge, which uses culture specific knowledge to drive the search; (iii) a Bayesian Network for speeding up the adaptation to the person by propagating the effects of acquiring one specific information onto interconnected concepts. We have conducted a preliminary evaluation of the framework involving 159 Italian and German volunteers and considering 122 among habits, attitudes and social norms

    Physical activity measured by implanted devices predicts atrial arrhythmias and patient outcome: Results of IMPLANTED (Italian Multicentre Observational Registry on Patients With Implantable Devices Remotely Monitored)

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    Background--To determine whether daily physical activity (PA), as measured by implanted devices (through accelerometer sensor), was related to the risk of developing atrial arrhythmias during long-term follow-up in a population of heart failure (HF) patients with an implantable cardioverter defibrillator (ICD). Methods and Results--The study population was divided into 2 equally sized groups (PA cutoff point: 3.5 h/d) according to their mean daily PA recorded by the device during the 30- to 60-day period post-ICD implantation. Propensity score matching was used to compare 2 equally sized cohorts with similar characteristics between lower and higher activity patients. The primary end point was time free from the first atrial high-rate episode (AHRE) of duration 656 minutes. Secondary end points were: first AHRE 656 hours, first AHRE 6548 hours, and a combined end point of death or HF hospitalization. Data from 770 patients (65\ub115 years; 66% men; left ventricular ejection fraction 35\ub112%) remotely monitored for a median of 25 months were analyzed. A PA =3.5 h/d was associated with a 38% relative reduction in the risk of AHRE 656 minutes (72-month cumulative survival: 75.0% versus 68.1%; log rank P=0.025), and with a reduction in the risk of AHRE 656 hours, AHRE 6548 hours, and the combined end point of death or HF hospitalization (all P &lt; 0.05). Conclusions--In HF patients with ICD, a low level of daily PA was associated with a higher risk of atrial arrhythmias, regardless of the patients' baseline characteristics. In addition, a lower daily PA predicted death or HF hospitalization
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