Hessische Forschungsdateninfrastrukturen HeFDI

Das Projekt „Hessische Forschungsdateninfrastrukturen“ (HeFDI) setzt auf die kooperative Entwicklung einer gemeinsamen Forschungsdatenstrategie und den Aufbau vernetzter Services. Durch den Zusammenschluss von zehn hessischen Hochschulen baut der so entstandene Verbund auf Kooperation durch institutionelle Arbeitsteilung

Blech zur Bildung eines Blechpaketes für einen Rotor einer elektrischen Maschine

The invention proposes a lamination (100) of a lamination stack for forming a rotor (200) of an electric machine, in particular an asynchronous machine, in order to avoid heat loss during operation ofthe electric machine. The laminations comprise radially extending channels (10) for receiving shorting bars (15). The laminations (100) have a recess (14) in a radially outer portion (100a) of the outer second end (10b) in the radial direction of the guide groove (10). The recess (14) is configured to be closed at least on one side in the radial direction

Hessische Forschungsdateninfrastrukturen HeFDI [Poster]

Das Projekt „Hessische Forschungsdateninfrastrukturen“ (HeFDI) setzt auf die kooperative Entwicklung einer gemeinsamen Forschungsdatenstrategie und den Aufbau vernetzter Services. Durch den Zusammenschluss von zehn hessischen Hochschulen baut der so entstandene Verbund auf Kooperation durch institutionelle Arbeitsteilung

The Transeurope Footrace Project: longitudinal data acquisition in a cluster randomized mobile MRI observational cohort study on 44 endurance runners at a 64-stage 4,486km transcontinental ultramarathon

BACKGROUND: The TransEurope FootRace 2009 (TEFR09) was one of the longest transcontinental ultramarathons with an extreme endurance physical load of running nearly 4,500 km in 64 days. The aim of this study was to assess the wide spectrum of adaptive responses in humans regarding the different tissues, organs and functional systems being exposed to such chronic physical endurance load with limited time for regeneration and resulting negative energy balance. A detailed description of the TEFR project and its implemented measuring methods in relation to the hypotheses are presented. METHODS: The most important research tool was a 1.5 Tesla magnetic resonance imaging (MRI) scanner mounted on a mobile unit following the ultra runners from stage to stage each day. Forty-four study volunteers (67% of the participants) were cluster randomized into two groups for MRI measurements (22 subjects each) according to the project protocol with its different research modules: musculoskeletal system, brain and pain perception, cardiovascular system, body composition, and oxidative stress and inflammation. Complementary to the diverse daily mobile MR-measurements on different topics (muscle and joint MRI, T2*-mapping of cartilage, MR-spectroscopy of muscles, functional MRI of the brain, cardiac and vascular cine MRI, whole body MRI) other methods were also used: ice-water pain test, psychometric questionnaires, bioelectrical impedance analysis (BIA), skinfold thickness and limb circumference measurements, daily urine samples, periodic blood samples and electrocardiograms (ECG). RESULTS: Thirty volunteers (68%) reached the finish line at North Cape. The mean total race speed was 8.35 km/hour. Finishers invested 552 hours in total. The completion rate for planned MRI investigations was more than 95%: 741 MR-examinations with 2,637 MRI sequences (more than 200,000 picture data), 5,720 urine samples, 244 blood samples, 205 ECG, 1,018 BIA, 539 anthropological measurements and 150 psychological questionnaires. CONCLUSIONS: This study demonstrates the feasibility of conducting a trial based centrally on mobile MR-measurements which were performed during ten weeks while crossing an entire continent. This article is the reference for contemporary result reports on the different scientific topics of the TEFR project, which may reveal additional new knowledge on the physiological and pathological processes of the functional systems on the organ, cellular and sub-cellular level at the limits of stress and strain of the human body.Please see related articles: http://www.biomedcentral.com/1741-7015/10/76 and http://www.biomedcentral.com/1741-7015/10/77