927 research outputs found

    “I’ll take care of you,” said the robot: Reflecting upon the Legal and Ethical Aspects of the Use and Development of Social Robots for Therapy

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    The insertion of robotic and artificial intelligent (AI) systems in therapeutic settings is accelerating. In this paper, we investigate the legal and ethical challenges of the growing inclusion of social robots in therapy. Typical examples of such systems are Kaspar, Hookie, Pleo, Tito, Robota, Nao, Leka or Keepon. Although recent studies support the adoption of robotic technologies for therapy and education, these technological developments interact socially with children, elderly or disabled, and may raise concerns that range from physical to cognitive safety, including data protection. Research in other fields also suggests that technology has a profound and alerting impact on us and our human nature. This article brings all these findings into the debate on whether the adoption of therapeutic AI and robot technologies are adequate, not only to raise awareness of the possible impacts of this technology but also to help steer the development and use of AI and robot technologies in therapeutic settings in the appropriate direction. Our contribution seeks to provide a thoughtful analysis of some issues concerning the use and development of social robots in therapy, in the hope that this can inform the policy debate and set the scene for further research.Horizon 2020(H2020)707404Article / Letter to editorInstituut voor Metajuridic

    A Content Analysis of Salvia Divinorum Use on YouTube

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    While peer groups remain the primary place where learning about drugs takes place, recently, researchers have recognized that channels of mass communication (e.g. movies, television, the Internet) may also play an important role in the learning process. For the last several decades, studies have demonstrated that there is a positive relationship between mass media use and drug use. The purpose of this study is to examine the use of a new recreational drug, Salvia divinorum, on YouTube. Salvia divinorum is a naturally occurring hallucinogenic drug from the mint family indigenous to Mexico and Central and South America. When smoked, the drug produces a short intense hallucinogenic high. The findings of this study show that majority of users who placed videos of themselves using Salvia on YouTube, were white males who used the drug in a group setting. After using the drug, most users experience a brief “expansive trip” in which users were often seen laughing and enjoying themselves. However, videos that portrayed users having a negative or constrictive experience on Salvia were much more popular among viewers. Social learning theory and diffusion of innovations theory are used as theoretical frameworks that may allow a better understanding of the recent rise in popularity of Salvia divinorum use on the Internet

    Sense and sensitivity of double beta decay experiments

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    The search for neutrinoless double beta decay is a very active field in which the number of proposals for next-generation experiments has proliferated. In this paper we attempt to address both the sense and the sensitivity of such proposals. Sensitivity comes first, by means of proposing a simple and unambiguous statistical recipe to derive the sensitivity to a putative Majorana neutrino mass, m_bb. In order to make sense of how the different experimental approaches compare, we apply this recipe to a selection of proposals, comparing the resulting sensitivities. We also propose a "physics-motivated range" (PMR) of the nuclear matrix elements as a unifying criterium between the different nuclear models. The expected performance of the proposals is parametrized in terms of only four numbers: energy resolution, background rate (per unit time, isotope mass and energy), detection efficiency, and bb isotope mass. For each proposal, both a reference and an optimistic scenario for the experimental performance are studied. In the reference scenario we find that all the proposals will be able to partially explore the degenerate spectrum, without fully covering it, although four of them (KamLAND-Zen, CUORE, NEXT and EXO) will approach the 50 meV boundary. In the optimistic scenario, we find that CUORE and the xenon-based proposals (KamLAND-Zen, EXO and NEXT) will explore a significant fraction of the inverse hierarchy, with NEXT covering it almost fully. For the long term future, we argue that Xe-based experiments may provide the best case for a 1-ton scale experiment, given the potentially very low backgrounds achievable and the expected scalability to large isotope masses.Comment: 30 pages, 12 figures, 6 table

    Toroidal magnetized iron neutrino detector for a neutrino factory

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    A neutrino factory has unparalleled physics reach for the discovery and measurement of CP violation in the neutrino sector. A far detector for a neutrino factory must have good charge identification with excellent background rejection and a large mass. An elegant solution is to construct a magnetized iron neutrino detector (MIND) along the lines of MINOS, where iron plates provide a toroidal magnetic field and scintillator planes provide 3D space points. In this paper, the current status of a simulation of a toroidal MIND for a neutrino factory is discussed in light of the recent measurements of large θ13. The response and performance using the 10 GeV neutrino factory configuration are presented. It is shown that this setup has equivalent δCP reach to a MIND with a dipole field and is sensitive to the discovery of CP violation over 85% of the values of δCP

    The Golden Channel at a Neutrino Factory revisited: improved sensitivities from a Magnetised Iron Neutrino Detector

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    This paper describes the performance and sensitivity to neutrino mixing parameters of a Magnetised Iron Neutrino Detector (MIND) at a Neutrino Factory with a neutrino beam created from the decay of 10 GeV muons. Specifically, it is concerned with the ability of such a detector to detect muons of the opposite sign to those stored (wrong-sign muons) while suppressing contamination of the signal from the interactions of other neutrino species in the beam. A new more realistic simulation and analysis, which improves the efficiency of this detector at low energies, has been developed using the GENIE neutrino event generator and the GEANT4 simulation toolkit. Low energy neutrino events down to 1 GeV were selected, while reducing backgrounds to the 10410^{-4} level. Signal efficiency plateaus of ~60% for νμ\nu_\mu and ~70% for νˉμ\bar{\nu}_\mu events were achieved starting at ~5 GeV. Contamination from the νμντ\nu_\mu\rightarrow \nu_\tau oscillation channel was studied for the first time and was found to be at the level between 1% and 4%. Full response matrices are supplied for all the signal and background channels from 1 GeV to 10 GeV. The sensitivity of an experiment involving a MIND detector of 100 ktonnes at 2000 km from the Neutrino Factory is calculated for the case of sin22θ13101\sin^2 2\theta_{13}\sim 10^{-1}. For this value of θ13\theta_{13}, the accuracy in the measurement of the CP violating phase is estimated to be ΔδCP35\Delta \delta_{CP}\sim 3^\circ - 5^\circ, depending on the value of δCP\delta_{CP}, the CP coverage at 5σ5\sigma is 85% and the mass hierarchy would be determined with better than 5σ5\sigma level for all values of δCP\delta_{CP}
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