247 research outputs found
Francesco Corna da Soncino, Fioretto (scheda n. 201)
No full textDescrizione e illustrazione storico-culturale dei manoscritti Vat. lat. 10228 e Marc. Lat. IX 364 (7167), noche' della edizione Corna Francesco, Fioretto, Venezia, Giorgio de’ Rusconi, 1515 (Mantova, Biblioteca Teresiana, Inc. 1279/1
Corna e vino. ovvero le caratteristiche della festa di S. Martino a Lugo di Romagna
No full textCorna e vino : ovvero le caratteristiche della festa di S. Martino a Lugo di Romagna / F. Balilla Pratella ; con illustrazioni in liotografia del sig. Giulio Ricci. - Lugo : presso L. Valli, c1929
Accluso un biglietto di accompagnamento con dedica manoscritta: (Istituto fascista di cultura "Alfredo Oriani", sezione di Lugo) per omaggio / Lugo 17 novembre 1929 / Anno VIII E. F.
https://galileodiscovery.unipd.it/discovery/fulldisplay?context=L&vid=39UPD_INST:VU1&search_scope=MyInst_and_CI&tab=Everything&docid=alma99000727485020604
Analogie e differenze nel controllo dell’equilibrio nell’invecchiamento e in diverse patologie neurologiche. Considerazioni sul ruolo dei riflessi da stiramento
No full textPost-effect on the centre of feet pressure during stance by continuous asymmetric mediolateral translations of a supporting platform-A preliminary study in healthy young adults
No full textVarious diseases are associated with the impaired control of the medio-lateral (ML) position of the centre of feet pressure (CoP), and several manoeuvres have been proposed for enhancing the CoP symmetry. Here, we assessed in healthy standing subjects the feasibility and outcome of a novel protocol entailing a reaction to a continuous asymmetric ML displacement (10 cm) of the support base. The periodic perturbation consisted of a fast half-cycle (0.5 Hz) followed by a slow half-cycle (0.18 Hz). One hundred successive horizontal translation cycles were delivered in sequence. Eyes were open or closed. CoP was recorded before, after, and during the stimulation by a dynamometric platform fixed onto the translating platform. We found that the post-stimulation CoP was displaced towards the direction of the fast half-cycles. The displacement lasted several tens of seconds. Vision did not aect the amplitude or duration of the post-stimulation eect. The magnitude of post-stimulation CoP displacement was related to the perturbation-induced ML motion of CoP recorded during the stimulation. Over the successive perturbation cycles, the time-course of this motion revealed an adaptation phenomenon. Vision moderately reduced the adaptation rate. The findings support the feasibility of the administration of a simple asymmetric balance perturbation protocol in clinical settings to help patients recover the symmetry of the CoP. This protocol needs to be further validated in older populations and in patients
Co-Ni mineralization in the Punta Corna hydrothermal vein system (Piemonte, Italy): preliminary results
No full textThe Punta Corna polymetallic hydrothermal vein system is located in the municipalities of Usseglio and Balme, Lanzo Valleys (Piemonte, Italy). The area has been well known since the Middle Ages for the
exploitation of Ag, Fe, and minor Co (commonly used for pigments production), until the 20th century.
The global concern about the green transition and critical raw materials (CRMs) supply, such as Co, which is critical for the manufacture of electric vehicles and storage power stations, has raised a renewed exploration interest in old mining sites, where the CRMs economic potential was not fully investigated. Since 2018 the
Junior Exploration Company AltaMin ltd. owns the exploration license of the Punta Corna area, for assessing the economic viability of the ore. The deposit consists of a complex vein system interpreted as the product of late Alpine hydrothermal events (Castelli et al., 2011) and it is hosted in the metaophiolitic suite of the Internal Piedmont Zone (IPZ), representing a portion of oceanic lithosphere and its sedimentary cover of the Jurassic Alpine Tethys (Dal Piaz et al., 2003). The IPZ recorded eclogite-facies metamorphism during the early phases of the Alpine orogeny and a re-equilibration under greenschist facies conditions during exhumation. The mineralized veins are almost exclusively hosted in metabasic rocks, locally preserving primary basaltic structures.
Based on literature data, the vein system can be divided into two different areas of geochemical significance:
i) the western sector, where Fe mineralization prevails, and ii) the eastern sector, dominated by Co-Ni-Fe arsenides +Fe carbonates, quartz and calcite gangue ± Zn-Cu-Pb-Ag sulfides ± baryte. Mineral assemblage and deposition below 200°C from metal-rich brines (from preliminary fluid inclusion analyses) suggest analogies with five element-vein deposits (Moroni et al., 2019).
The present work is part of a Ph.D. project focused on the geological, geochemical, and mineralogical investigation on the Punta Corna mineralized veins aimed to deepen the knowledge of the structural control of the ore bodies and metal distribution. New field campaigns (Spring-Summer 2022) planned to collect samples and data, are particularly aimed to understand the brittle deformation stages related to the mineralizing events. Petrographic, mineralogical and chemical characterization were performed on 23 new samples collected from different hydrothermal veins by means of optical microscopy, XRD, wet-chemical analyses and SEM-EDS techniques at the University of Torino
Time-Mode analysis of Crosstalk interference in a FPGA-based TDC implementation
No full textIn modern electronic systems and telecommunication applications, crosstalk (XT) has become a serious problem, especially in very high-speed, multi-channel, and high-density circuits. Crosstalk interference is an unwanted electromagnetic energy sharing between a node (aggressor) and a signal carrying information (victim). If the interference is strong enough, the receiver reads a corrupted information. In Time-Mode (TM) circuits and in time-based experiments, where the information is represented as the time distance between signals, the induced electromagnetic energy is converted in a temporal shift of the edges of the waves degrading the information or the measurements respectively. In this sense, Time-to-Digital Converters (TDCs) are the building blocks of TM circuits and the principal actors in time-based experiments. In fact, a TDC has the role to convert into a digital code a time interval. Nowadays, market asks for higher and higher number of channels maintaining the performance of the systems. A limiting factor to achieve this result is exactly the XT, and therefore it is necessary to study the sources of interference to minimize electromagnetic sharing. In this contribution, we classify and investigate the effects and the causes of crosstalk in time measurements considering a multi-channel TDC implemented in Field Programmable Gate Array (FPGA) as case study, deriving design rules for minimizing the related effects
Afferent control of walking: Are there distinct deficits associated to loss of fibres of different diameter?
No full textOBJECTIVES:
To compare the gait pattern in patients affected by different types of neuropathy.
METHODS:
We recruited healthy subjects (HS, n=38), patients with Charcot-Marie-Tooth disease type 1A (CMT1A) (n=10) and patients with diabetic neuropathy (DNP) (n=12). Neuropathy impairment score and neuropathy score were assessed. Body sway during quiet stance, and spatio-temporal gait parameters were recorded.
RESULTS:
Most patients had reduced or absent tendon-tap reflexes. Strength of foot dorsiflexor muscles (p<0.05) and conduction velocity (CV) of leg nerves (p<0.0001) were more impaired in CMT1A than DNP, whereas joint-position sense was more affected (p<0.05) in DNP. Body sway while standing was larger in DNP compared to CMT1A and HS (p<0.01 and p<0.0001 respectively). During gait, the distribution of foot sole contact pressure was abnormal in CMT1A (p<0.05) but not in DNP. Velocity and step length were decreased, and foot yaw angle at foot flat increased, in DNP with respect to CMT1A and HS (both variables, p<0.001). Gait velocity and step length were decreased (p<0.005) also in CMT1A, but to a smaller extent than in DNP, so that the difference between patient groups was significant (p<0.0005). Duration of the double support was protracted in DNP compared to CMT1A and HS (p<0.0005). For DNP only, velocity of gait and duration of single support were correlated (p<0.05) both to sway path and lower limb muscle strength.
CONCLUSIONS:
Changes in both body sway and stance phase of gait were larger in DNP than CMT1A, indicating more impaired static and dynamic control of balance when neuropathy affects the small in addition to the large afferent fibres. Diminished somatosensory input from the smaller fibres rather than muscle weakness or foot deformity plays a critical role in the modulation of the support phase of gait.
SIGNIFICANCE:
The analysis of balance and gait in patients with neuropathy can offer a tool for understanding the nature and functional impact of the neuropathy and should be included in their functional evaluation
Evidence for the influence of a genetic factor on both the likelihood of male homosexuality and the female fecundity
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