665 research outputs found

    Saying Hello World with UML-RSDS - A Solution to the 2011 Instructive Case

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    In this paper we apply the UML-RSDS notation and tools to the "Hello World" case studies and explain the underlying development process for this model transformation approach.Comment: In Proceedings TTC 2011, arXiv:1111.440

    Solving the TTC 2011 Model Migration Case with UML-RSDS

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    In this paper we apply the UML-RSDS notation and tools to the GMF model migration case study and explain how to use the UML-RSDS tools.Comment: In Proceedings TTC 2011, arXiv:1111.440

    Towards a high-precision measurement of the antiproton magnetic moment

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    The recent observation of single spins flips with a single proton in a Penning trap opens the way to measure the proton magnetic moment with high precision. Based on this success, which has been achieved with our apparatus at the University of Mainz, we demonstrated recently the first application of the so called double Penning-trap method with a single proton. This is a major step towards a measurement of the proton magnetic moment with ppb precision. To apply this method to a single trapped antiproton our collaboration is currently setting up a companion experiment at the antiproton decelerator of CERN. This effort is recognized as the Baryon Antibaryon Symmetry Experiment (BASE). A comparison of both magnetic moment values will provide a stringent test of CPT invariance with baryons.Comment: Submitted to LEAP 2013 conference proceeding

    Evaluation of Model Transformation Approaches for Model Refactoring

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    This paper provides a systematic evaluation framework for comparing model transformation approaches, based upon the ISO/IEC 9126-1 quality characteristics for software systems. We apply this framework to compare five transformation approaches (QVT-R, ATL, Kermeta, UMLRSDS and GrGen.NET) on a complex model refactoring case study: the amalgamation of apparent attribute clones in a class diagram. The case study highlights the problems with the specification and design of the refactoring category of model transformations, and provides a challenging example by which model transformation languages and approaches can be compared. We take into account a wide range of evaluation criteria aspects such as correctness, efficiency, flexibility, interoperability, reusability and robustness, which have not been comprehensively covered by other comparative surveys of transformation approaches. The results show clear distinctions between the capabilities and suitabilities of different approaches to address the refactoring form of transformation problem

    The relation between cognitive functioning and work outcomes in patients with Multiple Sclerosis: a systematic literature review

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    Background: Cognitive dysfunction is increasingly being recognized as an important limiting factor in work participation in patients with multiple sclerosis. This literature review provides a description, synthesis and interpretation of the existing literature and identifies gaps in current knowledge.Methods: Papers published between 1970 and April 2017 were included. Clinical trials, randomized controlled trials or observational quantitative studies in which data on cognitive factors associated with employment, work functioning or work-related problems were reported. Papers were manually double checked by two blinded reviewers.Results: A total of 41 papers were included of which 4 described prospective, longitudinal studies. The majority of studies reported positive associations between cognitive functioning and work outcomes (38/41 studies; 93%). Positive associations were found between work outcomes and global cognitive functioning (8/9 studies; 89%), language (8/17 studies; 47%), processing speed/ working memory (23/26 studies; 88%),new learning and memory (12/22 studies; 55%), executive functioning (10/17; 59%), intelligence (1/6; 17%) and self-reported cognitive functioning (14/15; 93%). None of the reviewed studies found a relation between visuospatial processing and work outcomes (0/8; 0%). Models including cognitive measures as well as demographic (age, education), neurological (disability, fine motor coordination, disease course), and psychological variables (depression, personality, fatigue) best predicted work outcomes.Conclusion: By conducting this review we found ample evidence that objective cognitive functioning (specifically processing speed/ working memory and executive functioning) and self-reported cognitive functioning are important independent associates of work outcomes and these factors should be addressed by healthcare professionals. Future research could benefit from a focus on longitudinal changes in cognition and its relation to work outcomes.Health and self-regulatio

    “Always looking for a new balance”: toward an understanding of what it takes to continue working while being diagnosed with relapsing-remitting multiple sclerosis

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    Background: The aim of this study was to gain insight into the meaning of work in the everyday lives of people with relapsing-remitting multiple sclerosis, and the barriers and facilitators to staying in work.Methods: Nineteen employed adults diagnosed with relapsing-remitting multiple sclerosis participated in narrative interviews. All interviews were transcribed and coded for thematic analysis.Results: For people with relapsing-remitting multiple sclerosis, continuing to work was a precarious balancing act. Five themes influenced this balance: becoming familiar with the disease, adjusting expectations, having an understanding and realistic line manager, seeing work as meaningful life activity and strategic considerations.Conclusions: People receiving a diagnosis of relapsing-remitting multiple sclerosis have to refamiliarize themselves with their own body in a meaningful way to be able to continue their work. Rehabilitation professionals can support them herein by taking into account not merely functional capabilities but also identity aspects of the body. Medication that stabilizes symptoms supports making the necessary adjustments. A trusting relationship with the line manager is vital for this adaptation process. Additionally, a match between being adequately challenged by work, while still having the capacity to meet those work demands, is needed, as is long-term financial stability.Implications for rehabilitationRehabilitation professionals can support employees with relapsing-remitting multiple sclerosis by taking into account not merely functional capabilities but also identity aspects of the body.A trusting relationship with the line manager, including a timely disclosure of the diagnosis, is vital for people with relapsing-remitting multiple sclerosis to remain at work.For people with relapsing-remitting multiple sclerosis, there is a delicate balance between being adequately challenged by work while still having the capacity to meet work demands.FSW - Self-regulation models for health behavior and psychopathology - ou

    Challenges in managing real-time data in health information system (HIS)

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    © Springer International Publishing Switzerland 2016. In this paper, we have discussed the challenges in handling real-time medical big data collection and storage in health information system (HIS). Based on challenges, we have proposed a model for realtime analysis of medical big data. We exemplify the approach through Spark Streaming and Apache Kafka using the processing of health big data Stream. Apache Kafka works very well in transporting data among different systems such as relational databases, Apache Hadoop and nonrelational databases. However, Apache Kafka lacks analyzing the stream, Spark Streaming framework has the capability to perform some operations on the stream. We have identified the challenges in current realtime systems and proposed our solution to cope with the medical big data streams

    The magnetic moments of the proton and the antiproton

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    Recent exciting progress in the preparation and manipulation of the motional quantum states of a single trapped proton enabled the first direct detection of the particle's spin state. Based on this success the proton magnetic moment μp\mu_p was measured with ppm precision in a Penning trap with a superimposed magnetic field inhomogeneity. An improvement by an additional factor of 1000 in precision is possible by application of the so-called double Penning trap technique. In a recent paper we reported the first demonstration of this method with a single trapped proton, which is a major step towards the first direct high-precision measurement of μp\mu_p. The techniques required for the proton can be directly applied to measure the antiproton magnetic moment μpˉ\mu_{\bar{p}}. An improvement in precision of μpˉ\mu_{\bar{p}} by more than three orders of magnitude becomes possible, which will provide one of the most sensitive tests of CPT invariance. To achieve this research goal we are currently setting up the Baryon Antibaryon Symmetry Experiment (BASE) at the antiproton decelerator (AD) of CERN
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