453 research outputs found

    A physical/virtual anatomical platform for hysteroscopy training

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    Minimally Invasive Surgery (MIS), which consists in operating through small orifices, reduces the patients’ pain, complications, recovery time and scarring. However, while providing many benefits, the skills required in MIS are especially difficult to learn. Unfortunately, current training methods for such techniques have not progressed at the same pace as surgical advances. Insufficient surgical skills acquisition translates into complications during procedures, which not only harm the patient, but also increases the derived costs of interventions and their follow up. The developed platform merges both technologies, with the benefits of having a physical anatomic model and computer assistance for augmented reality and objective assessment. Further to the functions of a surgical trainer, EndoTrainer provides an integral education, training and evaluation platform.Peer ReviewedPostprint (published version

    Study of NWP parameterizations on extreme precipitation events over Basque Country

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    The Weather Research and Forecasting model (WRF), like other numerical models, can make use of several parameterization schemes. The purpose of this study is to determine how available cumulus parameterization (CP) and microphysics (MP) schemes in the WRF model simulate extreme precipitation events in the Basque Country. Possible combinations among two CP schemes (Kain–Fritsch and Betts–Miller–Janjic) and five MP (WSM3, Lin, WSM6, new Thompson and WDM6) schemes were tested. A set of simulations, corresponding to 21st century extreme precipitation events that have caused significant flood episodes have been compared with point observational data coming from the Basque Country Automatic Weather Station Mesonetwork. Configurations with Kain–Fritsch CP scheme produce better quantity of precipitation forecast (QPF) than BMJ scheme configurations. Depending on the severity level and the river basin analysed different MP schemes show the best behaviours, demonstrating that there is not a unique configuration that solve exactly all the studied events.The authors would like to thank the 100–120 50 Emergencies and Meteorology Directorate – Security Department – Basque Government for public provision of data and operational service ïŹnancial support

    Lifelong learning and schools as community learning centres : key aspects of a national curriculum draft policy framework for Malta

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    The island of Malta has been engaged in policy document formulations for curriculum renewal in the country’s educational system (4-16 years of age) since 1988 when the first National Minimum Curriculum (henceforth NMC) was launched (Wain, 1991; Borg et al, 1995). In 1999 a revamped NMC (Ministry of Education, 1999) was developed following a long process of consultation involving various stages and stakeholders. It was a compromise document (Borg & Mayo, 2006) which emerged as a result of reactions to a more radical and coherent draft document produced in 1988. Both curricular documents were subject to debates and critiques (Wain, 1991; Darmanin, 1993; Borg et al, 1995; Giordmaina, 2000; Borg and Mayo, 2006). More recently a series of volumes providing guidelines, key principles and aims for a national curriculum framework (henceforth NCF) have been produced (MEEF, 2011a,b,c,d) and are currently the target of debate and the focus of reactions by various stakeholders in education including teachers who were asked to read the volumes and provide reactions in the form of answers to a set questionnaire. In this paper, I will focus on one aspect of the documents, the first of its three aims: ‘Learners who are capable of successfully developing their full potential as lifelong learners.’ It is that aspect of the framework documents that falls within the purview of the title for this special issue. The use of this notion attests to the influence of the EU’s policy communications on member states, Malta having joined the Union in 2004 (Mayo, 2007).peer-reviewe

    Does ALS-FUS without FUS mutation represent ALS-FET? Report of three cases

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    Altres ajuts: This study was partially funded by Fundacio Marató de TV3 (grant no. 20143810 to RSV, no. 20141610 to EG and no. 201437.10 to RRG) and Fondo Europeo de Desarrollo Regional (FEDER) (PI16/01673 to JG and PI15/01618 to RRG). We are indebted to the Neurological Tissue Bank of the Biobanc-Hospital Clinic-IDIBAPS, Barcelona, Spain, for data and sample procurement. We thank Sara Charif, Veronica Santiago, Carmen Schweiger, Leire Etxarri and Abel Muñoz for technical assistance

    Parmbsc1: a refined force field for DNA simulations

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    We present parmbsc1, a force field for DNA atomistic simulation, which has been parameterized from high-level quantum mechanical data and tested for nearly 100 systems (representing a total simulation time of ~140 ÎŒs) covering most of DNA structural space. Parmbsc1 provides high-quality results in diverse systems. Parameters and trajectories are available at http://mmb.irbbarcelona.org/ParmBSC1/

    An agenda-setting paper on data sharing platforms: euCanSHare workshop [version 1; peer review: awaiting peer review]

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    Various data sharing platforms are being developed to enhance the sharing of cohort data by addressing the fragmented state of data storage and access systems. However, policy challenges in several domains remain unresolved. The euCanSHare workshop was organized to identify and discuss these challenges and to set the future research agenda. Concerns over the multiplicity and long-term sustainability of platforms, lack of resources, access of commercial parties to medical data, credit and recognition mechanisms in academia and the organization of data access committees are outlined. Within these areas, solutions need to be devised to ensure an optimal functioning of platforms

    Success of bone grafts in atrophic posterior edentulous mandible: literature review.

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    Background: The success of implant therapy depends on the availability of an adequate bone volume in the edentulous site. In the case of posterior bone atrophy, the increase of the alveolar ridge is a prerequisite for the optimal placement of endosseous implants. Purpose: The purpose of this research is to analyze in Literature the success of bone grafts in posterior atrophic edentulous mandible. Materials and methods: The Literature analysis includes only relevant articles specifically on the topic. The following parameters were evaluated: the type of materials used, the average gain expressed in millimeters, the success of the grafts over time and their complications, the outcome of the grafts according of the materials used and the survival rate of endosseous implants over time. Results: Autologous, homologous and heterologous materials were used for the grafts, either separately or in combination. However autologous bone, obtained from the mandible, was preferentially used for grafts in atrophic posterior mandible. Membranes could be also associated to the grafts. The gain in the alveolar ridge was achieved both horizontally and vertically, and usually reflected the surgeon's effort to meet patient's needs. Conclusions: A review of literature reveals that the intraoral autologous bone graft is the most used and allows to achieve the best result in restoring posterior atrophic mandible

    Sporadic Creutzfeldt-Jakob disease VM1: phenotypic and molecular characterization of a novel subtype of human prion disease

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    The methionine (M)-valine (V) polymorphic codon 129 of the prion protein gene (PRNP) plays a central role in both susceptibility and phenotypic expression of sporadic Creutzfeldt-Jakob diseases (sCJD). Experimental transmissions of sCJD in humanized transgenic mice led to the isolation of five prion strains, named M1, M2C, M2T, V2, and V1, based on two major conformations of the pathological prion protein (PrPSc, type 1 and type 2), and the codon 129 genotype determining susceptibility and propagation efficiency. While the most frequent sCJD strains have been described in codon 129 homozygosis (MM1, MM2C, VV2) and heterozygosis (MV1, MV2K, and MV2C), the V1 strain has only been found in patients carrying VV. We identified six sCJD cases, 4 in Catalonia and 2 in Italy, carrying MV at PRNP codon 129 in combination with PrPSc type 1 and a new clinical and neuropathological profile reminiscent of the VV1 sCJD subtype rather than typical MM1/MV1. All patients had a relatively long duration (mean of 20.5 vs. 3.5 months of MM1/MV1 patients) and lacked electroencephalographic periodic sharp-wave complexes at diagnosis. Distinctive histopathological features included the spongiform change with vacuoles of larger size than those seen in sCJD MM1/MV1, the lesion profile with prominent cortical and striatal involvement, and the pattern of PrPSc deposition characterized by a dissociation between florid spongiform change and mild synaptic deposits associated with coarse, patch-like deposits in the cerebellar molecular layer. Western blot analysis of brain homogenates revealed a PrPSc type 1 profile with physicochemical properties reminiscent of the type 1 protein linked to the VV1 sCJD subtype. In summary, we have identified a new subtype of sCJD with distinctive clinicopathological features significantly overlapping with those of the VV1 subtype, possibly representing the missing evidence of V1 sCJD strain propagation in the 129MV host genotype
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