98 research outputs found

    A model for the high-level description and simulation of VLSI networks

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    Denktank Overlijdensschade: nieuwe richting benadering en berekening overlijdensschade

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    De denktank overlijdensschade is ontstaan, omdat de rekenmethodiek voor overlijdensschade niet uit te leggen is aan nabestaanden en geen recht doet aan de maatschappelijke ontwikkelingen. Diverse professionals besloten niet langer slechts te ageren tegen de bestaande situatie, maar er werkelijk wat aan te doen. Dit heeft geresulteerd in een conceptnotitie ā€˜Nieuwe richting benadering en berekening overlijdensschadeā€™. In dit artikel wordt deze notitie kort besproken

    Notitie Denktank Overlijdensschade. Nieuwe richting benadering en berekening overlijdensschade

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    In 2009 is een werkgroep onder de naam Denktank Overlijdensschade gestart met het bestuderen van een ander, aan de huidige tijd aangepast model voor de berekening van overlijdensschade. Doelstelling was te komen tot een, ook voor nabestaanden, transparantie systematiek welke recht doet aan de vorderingsgerechtigdheid van de nabestaanden. In 2014 heeft de Denktank Overlijdensschade haar werkzaamheden voltooid met het opleveren van een nieuwe rekenmethodiek. In deze Notitie wordt beschreven hoe de Denktank tot deze nieuwe benadering van het berekenen van overlijdensschade is gekomen, welke onderzoeken daaraan ten grondslag liggen en wat de uiteindelijke rekenregel is, die nu voorgesteld wordt. Kern van de nieuwe methodiek is het uitgangspunt dat het gezin als economische eenheid wordt beschouwd, voor Ć©n na het overlijden

    Optimisations and challenges involved in the creation of various bioluminescent and fluorescent influenza a virus strains for in vitro and in vivo applications

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    Bioluminescent and fluorescent influenza A viruses offer new opportunities to study influenza virus replication, tropism and pathogenesis. To date, several influenza A reporter viruses have been described. These strategies typically focused on a single reporter gene (either bioluminescent or fluorescent) in a single virus backbone. However, whilst bioluminescence is suited to in vivo imaging, fluorescent viruses are more appropriate for microscopy. Therefore, the idea l reporter virus varies depending on the experiment in question, and it is important that any reporter virus strategy can be adapted accordingly. Herein, a strategy was developed to create five different reporter viruses in a single virus backbone. Specifically, enhanced green fluorescent protein (eGFP), far-red fluorescent protein (fRFP), near-infrared fluorescent protein (iRFP), Gaussia luciferase (gLUC) and firefly luciferase (fLUC) were inserted into the PA gene segment of A/PR/8/34 (H1N1). This study provides a comprehensive characterisation of the effects of different reporter genes on influenza virus replication and reporter activity. In vivo reporter gene expression, in lung tissues, was only detected for eGFP, fRFP and gLUC expressing viruses. In vitro, the eGFP-expressing virus displayed the best reporter stability and could be used for correlative light electron microscopy (CLEM). This strategy was then used to create eGFP-expressing viruses consisting entirely of pandemic H1N1, highly pathogenic avian influenza (HPAI) H5N1 and H7N9. The HPAI H5N1 eGFP-expressing virus infected mice and reporter gene expression was detected, in lung tissues, in vivo. Thus, this study provides new tools and insights for the creation of bioluminescent and fluorescent influenza A reporter viruses. Copyright

    Simulations of denuded-zone formation during growth on surfaces with anisotropic diffusion

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    We have investigated the formation of denuded zones during epitaxial growth on surfaces exhibiting anisotropic diffusion of adparticles, such as Si(001)-2x1, using Monte Carlo simulations and a continuum model. In both the simulations, which were mainly for low-temperature cases (small critical clusters), and the continuum model, appropriate for high-temperature cases (large critical clusters), it was found that the ratio of denuded-zone widths Wf and Ws in the fast- and slow-diffusion directions scales with the ratio Df/Ds of the diffusion constants in the two directions with a power of 1/2, i.e., Wf/Ws ≈ (Df/Ds)1/2, independent of various conditions including the degree of diffusion anisotropy. This supplies the foundation of a method for extracting the diffusion anisotropy from the denuded zone anisotropy which is experimentally measurable. Further, we find that unequal probabilities of a diffusing particle sticking to different types of step edges [e.g., S A and SB steps on Si(001)] does not affect the relation Wf/Ws ≈ (Df/Ds)1/2 seriously unless the smaller of the two sticking probabilities is less than about 0.1. Finally, we examined the relation between the number of steps and the number of sites visited in anisotropic random walks, finding it is better described by a crossover from one-dimensional to two-dimensional behavior than by scaling behavior with a single exponent. This result has bearing on scaling arguments relating denuded-zone widths to diffusion constants for anisotropic diffusion.open7

    Calsequestrin as a risk factor in Gravesā€™ hyperthyroidism and Gravesā€™ ophthalmopathy patients

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    Background: The pathogenesis of Gravesā€™ ophthalmopathy (GO), Gravesā€™ hyperthyroidism (GH) and the mechanisms for its link to thyroid autoimmunity are poorly understood. Our research focuses on the role of the skeletal muscle calcium binding protein calsequestrin (CASQ1) in thyroid. We measured the concentration of the CASQ1 protein correlating levels with parameters of the eye signs, CASQ1 antibody levels and CASQ1 gene polymorphism rs3838284. Methods: CASQ1 protein was measured by quantitative Western Blotting. The protein concentrations were expressed as pmol/mg total protein by reference to CASQ1 standards. Results: Western blot analysis showed the presence of two forms of CASQ1 in the thyroid. The mean concentration of CASQ1 protein was significantly reduced in patients with Gravesā€™ disease, compared to thyroid from control subjects with multi-nodular goitre or thyroid cancer. Although in patients with GO it was lower than that, compared with patients with GH this difference was not significant. Reduced CASQ1 in Gravesā€™ thyroid correlated with the homozygous genotype of the rs3838284 CASQ1 polymorphism. Conclusions: Decreased CASQ1 in the thyroid of patients with Gravesā€™ disease compared to thyroid from control subjects is not explained but may reflect consumption of the protein during an autoimmune reaction against CASQ1 in the thyroid

    Healthcare costs of metastatic cutaneous melanoma in the era of immunotherapeutic and targeted drugs

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    Immunotherapeutic and targeted drugs improved survival of patients with metastatic melanoma. There is, however, a lack of evidence regarding their healthcare costs in clinical practice. The aim of our study was to provide insight into real-world healthcare costs of patients with metastatic cutaneous melanoma. Data were obtained from the Dutch Melanoma Treatment Registry for patients who were registered between July 2012 and December 2018. Mean total/monthly costs per patient were reported for all patients, patients who did not receive systemic therapy, and patients who received systemic therapy. Furthermore, mean episode/monthly costs per line of therapy and drug were reported for patients who received systemic therapy. Mean total/monthly costs were ā‚¬ 89,240/ā‚¬ 6809: ā‚¬ 7988/ā‚¬ 2483 for patients who did not receive systemic therapy (n = 784) and ā‚¬ 105,078/ā‚¬ 7652 for patients who received systemic therapy (n = 4022). Mean episode/monthly costs were the highest for nivolumab plus ipilimumab (ā‚¬ 79,675/ā‚¬ 16,976), ipilimumab monotherapy (ā‚¬ 79,110/ā‚¬ 17,252), and dabrafenib plus trametinib (ā‚¬ 77,053/ā‚¬ 12,015). Dacarbazine yielded the lowest mean episode/monthly costs (ā‚¬ 6564/ā‚¬ 2027). Our study showed that immunotherapeutic and targeted drugs had a large impact on real-world healthcare costs. As new drugs continue entering the treatment landscape for (metastatic) melanoma, it remains crucial to monitor whether the benefits of these drugs outweigh their costs
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