A Roadmap for HEP Software and Computing R&D for the 2020s

Particle physics has an ambitious and broad experimental programme for the coming decades. This programme requires large investments in detector hardware, either to build new facilities and experiments, or to upgrade existing ones. Similarly, it requires commensurate investment in the R&D of software to acquire, manage, process, and analyse the shear amounts of data to be recorded. In planning for the HL-LHC in particular, it is critical that all of the collaborating stakeholders agree on the software goals and priorities, and that the efforts complement each other. In this spirit, this white paper describes the R&D activities required to prepare for this software upgrade.Peer reviewe

IT Lightning Talks: session #24

Do you care about properly licensing your code, or you just put it "out there in gitsomething"? We clarify a couple of key concepts on Open Source and present a set of guidelines and specifications you can adopt to help humans and machines interact with your code

NILDE: developing a new generation tool for document delivery

This paper presents the most recent progress and implementation of the NILDE (Network Inter-Library Document Exchange) system, which was developed by the National Research Council (CNR) Bologna Research Area Library. NILDE is a web based document delivery (DD) software for libraries and end-users. It allows libraries to manage the entire workflow of DD activities, both borrowing and lending, through the provision of synthetic and analytical statistics, DD performance indicators “fill-rate” and “turn-around time”, and support for secure electronic delivery. As new challenges in electronic publishing (such as increases in the price of journals, cross-access and licensing issues) have led libraries from all over the world to organize in consortia, the rise in NILDE users has allowed the building of a cooperation network to promote resource sharing based on a degree of standard quality of service and fair behaviour, and to establish an efficient communication channel among libraries, consortia and publishers. It has been proved that, in order to accomplish effective resource sharing, libraries should be willing to fulfil document delivery on a reciprocal basis, both requesting and providing documents. In particular, each library should make its best effort to expose and update its holdings by actively participating in collective national OPACs or in Italian meta-OPACs. It has been shown how, by adhering to these principles, libraries start up a virtuous cycle within the NILDE network, increasing its own value. As a result, the growth rate of numbers of NILDE libraries has accelerated, showing that the above said resource sharing policy is a real building block for success. In order to guarantee scalability and high performance operations, the overall system architecture has been rethought, ending up in the design of a brand new piece of software. New technologies, referred to as Web 2.0, have been incorporated into NILDE, making it an even more user-oriented and friendly tool for document delivery and scholar work

NILDE: developing a new generation tool for document delivery in Italy

This paper presents the most recent progress and implementation of the NILDE (Network Inter-Library Document Exchange) system, a web based document delivery (DD) software for libraries and end-users. NILDE allows libraries to manage the entire workflow of DD activities, both borrowing and lending, through the provision of synthetic and analytical statistics, DD performance indicators such as "fill-rate" and "turn-around time", and support for secure electronic delivery. New technologies, referred to as Web 2.0, have been incorporated into NILDE, making it an even more user-oriented and friendly tool for document delivery and scholar work

Added Value of 3- Versus 2-Dimensional Echocardiography Left Ventricular Ejection Fraction to Predict Arrhythmic Risk in Patients With Left Ventricular Dysfunction

OBJECTIVES: The study sought to evaluate the potential clinical impact of using 3-dimensional echocardiography (3DE) to measure left ventricular ejection fraction (LVEF) in patients considered for implantable cardioverter-defibrillator (ICD) implantation and to assess the predictive value of 3DE LVEF for arrhythmic events. BACKGROUND: ICD therapy is currently recommended to prevent sudden cardiac death in patients with symptomatic heart failure and LVEF 6435%, and in asymptomatic patients with ischemic heart disease and LVEF 6430%. Two-dimensional echocardiography (2DE) is currently used to calculate LVEF. However, 3DE has been reported to be more reproducible and accurate than 2DE to measure LVEF. METHODS: The study prospectively enrolled 172 patients with LV dysfunction (71% ischemic). Both 2DE and 3DE LVEF were obtained during the same study. The outcome was the occurrence of major arrhythmic events (sudden cardiac death, aborted cardiac arrest, appropriate ICD therapy). RESULTS: After a median follow up of 56 (range 18 to 65) months, major arrhythmic events occurred in 30% of the patients. Compared with 2DE, 3DE changed the assignment above or below the LVEF thresholds for ICD implantation in 20% of patients, most of them having 2DE LVEFs within \ub1 10% from threshold. By cause-specific hazard model, 3DE LVEF was the only independent predictor of the occurrence of major arrhythmic events. CONCLUSIONS: LVEF by 3DE was an independent predictor of major arrhythmic events and improved arrhythmic risk prediction in patients with LV dysfunction. When compared with 2DE LVEF, 3DE measurement of LVEF may change the decision to implant an ICD in a sizable number of patients