2,293 research outputs found
FIRST experiment: measurements of differential cross sections in 12C fragmentation for hadron-therapy and space applications
No full textThe aim of the present work is to describe some preliminary results obtained within the experiment FIRST (Fragmentation of Ions Relevant for Space and Therapy). This experiment main goal is to measure the differential cross-sections in energy and angle of nuclear fragmentation processes, in a wide energy range (between 100 and 1000 MeV/n). The knowledge of these cross sections will be useful for cancer therapy and space radiation protection. This experiment was carried out because there is a strong need of high-quality experimental data concerning 12 C, 16 O and 56 Fe fragmentation on different targets. The first data taking has been performed at SIS (Heavy Ion Synchrotron) accelerator of GSI Laboratory in Darmstadt (Germany) during August 2011. Different sets of data have been collected using a 400 MeV/n carbon beam impinging on carbon and gold targets. Experimental data of single and double-differential cross sections for C-ions at energies less or equal to 400 MeV/n are needed to improve treatment plannings in particle-therapy. In particular accurate measurements of cross sections of light ions are urgently needed for improving transport codes to be used in cancer therapy. Algorithms that deal with the transport of charged particle in matter are essential for accurate treatment plannings, in order to evaluate possible long term side effects of dose released in healthy tissue. Unfortunately, the production of light fragments and their angular distribu- tions are affected by large uncertainties and various Monte Carlo codes may differ up to one order of magnitude in their predictions. Moreover, codes used for space radiation transport in shielding materials need more information on the fragmentation effects. Recently, NASA completed a large database of these measurements and observed that there are ion species and kinetic energy ranges not yet evaluated. The FIRST experiment aims to contribute to the knowledge of these nu- clear processes and to investigate the secondary effects on human tissues of hadron's irradiation. In fact, most of the measurements carried out in the past are limited to fragment yields and to total fragmentation cross-sections, while the required measurements of single or double-differential cross-sections are deficien
Il contributo della process research agli sviluppi futuri della terapia familiare (The contribution of the process research to the future developments of family therapy)
No full textFamily therapists are more and more called to document the effectiveness of psychotherapy through outcome research, aimed at verifying if family therapy works; and process research, aimed at describing how family therapy works. Focusing on different studies that describe the interaction between therapist and family members, and the observable changes that occur during the course of a therapeutic dialogue, this paper underlines the clinical and training implications of the process research for the systemic family therapy field
"The love that made hell, paradise." Ouida re-writing the Paolo and Francesca theme in Held in Bondage
No full textThe bestselling Victorian author Ouida reveals in her novels, and, in particular, Held in Bondage, an extraordinary knowledge od Dante, by using characters and themes from the Commedia. The Paolo and Francesca theme actually constitutes part of the plot of the novel and is to be found in many of her other works, short stories and non-fiction writing
Comunichiamo la scienza: Le grotte raccontate sotto una nuova veste grafica. “A Speleologist's Life”
No full textSi sperimenta l’uso del fumetto muto in stile manga per comunicare la scienza in modo coinvolgente e senza annoiare. La narrazione esplora gli ambienti ipogei naturali presso la Grotta delle Torri di Slivia. Si combina rigore scientifico ed estetica visiva. La protagonista, una ricercatrice, guida i visitatori, alla scoperta del mondo sotterraneo, rendendo accessibili concetti complessi. Questo approccio innovativo dimostra come il linguaggio visivo possa facilitare la divulgazione scientifica
A machine learning approach for stride speed estimation based on a head-mounted IMU
No full textWalking speed in real-life conditions is typically
estimated through wearable inertial sensors mounted on waist,
lower limbs, or wrists. Very recently, head-mounted inertial
sensors are emerging for gait assessment. The present study
explores the feasibility of measuring the stride speed with a
head-mounted inertial sensor in both laboratory and real-world
settings. The developed algorithm exploits a Temporal
Convolutional Network for the detection of the gait events and a
Gaussian Process Regression for the stride speed estimation.
The experimental evaluation was carried out on healthy young
participants during both standardised indoor and real-world
walking trials. For indoor trials, errors were smaller than
previous studies (0.05 m/s). As expected, errors increased at
lower speed regimes due to a reduced signals amplitude. During
2.5-hours real-world evaluation, errors were slightly larger but
acceptable (0.1 m/s). Reported results are encouraging and show
the feasibility of estimating gait speed with a single head-worn
inertial sensor
HERStory Makers 2023: Francesca Fotheringham
No full textFrancesca Fotheringham is a postdoctoral research associate at the University of Edinburgh studying educational psychology with a focus on neurodiversity. She took part in HERStory Makers 2023.What is HERStory Makers?HERStory Makers is a social media competition for female-identifying early career researchers to share their research, their career journeys, and to inspire the next generation. Winners are selected by public vote. HERStory Makers is also part of EXPLORATHON, Scotland's contribution to European Researchers' Night.In 2022-23, EXPLORATHON Francescasupported by the Engineering & Physical Sciences Research Council [grant number EP/X020762/1].Author contributions to contentFrancesca conceived, planned, and recorded the video content. Kirsty Ross edited the video content to insert HERStory Maker credits, added subtitles, and reduce video length to below Twitter/X limit of 2 mins and 20 secs.</p
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