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Boulder, CO, United States

Pierannunzii L.,Sportiva
Arthroscopy Techniques | Year: 2012

Core decompression is a joint-preserving surgery feasible in early-stage avascular necrosis of the femoral head. An arthroscopically/endoscopically aided development of this procedure is presented to overcome some drawbacks of the standard technique. Conventional imaging may underestimate the articular damage; thus a preliminary hip arthroscopy helps to identify those patients with significant joint damage, who might not benefit from the procedure. The standard fluoroscopically guided core decompression does not allow precise targeting or reliable debridement of the lesion. Tunnel endoscopy helps the surgeon to aim precisely at the lesion and to debride it thoroughly, with accurate visual verification. In conclusion, the arthroscopic-endoscopic assistance may lead to more accurate patient selection, more precise targeting, and more complete debridement, with no apparent disadvantages. © 2012 Arthroscopy Association of North America. Source

Agency: Cordis | Branch: FP7 | Program: CP | Phase: EeB-ICT-2010.10.2 | Award Amount: 4.66M | Year: 2010

The European Sport and Recreation Building Stock accounts for approximately 1,5 Million buildings or 8% of the overall building stock. These facilities are unique by their physical nature, their energy consumption profiles, the usage patterns of people inside, ownership, and comfort requirements. SPORTE2 aims to manage and optimize the triple dimensions of energy flows (generation, grid exchange, and consumption) in Sport and Recreation Buildings by developing a new scalable and modular BMS based on smart metering, integrated control, optimal decision making, and multi-facility management. This tool will enable a new relationship and business model structure between facility managers and power providers. The SPORTE2 modules will be applicable to both new and existing structures and answer the fundamental questions of how, where, when and why energy is produced, used and grid exchanged. The approach will target a reduction of energy consumption by up 30%, with commensurate CO2 reductions and cost savings. The project will make use of a full scale building laboratory environment (Kubik) for system integration and testing. The project will then implement the SPORTE2 modules in three full-scale pilots representative of the sector (e.g. swimming pools, indoor and outdoor courts, gyms, etc) and able to implement the smart grid concept through the availability of RET and cogeneration devices. Strong linkages to sport associations and green building design are present in the consortium to enable exploitation of project results.

Rossi S.S.,Sportiva | Botre F.,Sportiva | Botre F.,University of Rome La Sapienza
Journal of Sports Sciences | Year: 2011

The objective of this study was to assess the prevalence of illicit drugs use among young adults, in particular elite athletes. This study considers the data obtained from anti-doping analyses performed on nearly 100,000 urine samples from 2000 to 2009 by the World Anti-Doping Agency accredited Italian Anti-Doping Laboratory. The percentage of adverse analytical findings varies on a yearly basis, but it is in the range 1.0-1.8% (not considering atypical findings, such as an altered endogenous steroid profile). Among positive results, there is a high prevalence of stimulants and drugs of abuse. The drug of abuse found most frequently is the tetrahydrocannabinol (cannabis) metabolite, accounting for 0.2-0.4% of the total samples analysed (18% of the positive results). The second most frequently encountered drug is cocaine, as detected from cocaine metabolites, accounting for 0.1% of the total samples analysed (7% of positive results). Other stimulants found included amphetamines, ephedrines, carphedon, modafinil, and anorexic compounds. No amphetamine-like designer drugs were detected. These data are indicative of the widespread prevalence of cocaine and cannabis use among the young adult population. However, due to the particular population studied, it must be considered an underestimation of the phenomenon among elite athletes with respect to the general population. © 2011 Taylor & Francis. Source

Frasconi M.,University of Rome La Sapienza | Tortolini C.,Sportiva | Botre F.,Sportiva | Mazzei F.,University of Rome La Sapienza
Analytical Chemistry | Year: 2010

Bifunctional hydroxyl/thiol-functionalized fourth-generation polyamidoamine dendrimer (G4-PAMAM)-encapsulated Au nanoparticle (NP) was synthesized and immobilized on a mixed self-assembled monolayer (SAM)-modified gold surface. This modified surface was resistant to nonspecific adsorption of proteins having a wide range of molecular weight and isoelectric points. Part of the dendrimer thiol groups were converted to hydrazide functionalities providing an activated surface available to subsequently immobilize the receptor for developing a sensor surface to immunoaffinity reaction. Herein, the surface plasmon resonance (SPR) detection of insulin was obtained by means of a competitive immunoassay principle. The resulting Au NP dendrimer-modified surface provided an assay with high stability, significantly enhanced sensitivity, and a detection limit for analyzing insulin of 0.5 pM. The SPR detection of insulin was amplified due to the changes in the dielectric properties of the matrixes, occurring upon the biorecognition processes on the sensor surface, through the coupling of the localized plasmon of the NPs with the surface plasmon wave. The developed sensor chip was used to analyze insulin in human serum samples from healthy and diabetic patients. The results showed good correlation to the reference method. The specificity and the improved sensitivity of this biosensing platform could have significant implications for the detection of a wide range of molecules and biomarkers in complex biological media. © 2010 American Chemical Society. Source

A boot, particularly for ski-mountaineering or telemark skiing, comprising a shell and a quarter, mutually articulated about a first pivoting axis, and a device for locking relative rotation of the quarter with respect to the shell about a first pivoting axis. The locking device comprises an elongated locking element which has a first terminal pivoting portion that is supported rotatably by the shell about a second pivoting axis substantially parallel to the first pivoting axis. The elongated locking element has at least one locking body that comprises at least one retention body that can move with respect to the elongated locking element and the abutment element has at least one abutment portion for the retention body which is arranged on the side opposite with respect to the elongated locking element. The actuation body is connected kinematically to the locking body in order to actuate the movement of the retention body with respect to the elongated locking element.

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