186,599 research outputs found
Recurrent models of orientation selectivity enable robust early-vision processing in mixed-signal neuromorphic hardware
No full textISSN:2041-172
MEET. Un percorso espositivo interattivo tra co-design e valorizzazione del territorio/ MEET. An interactive exhibition itinerary between co-design and enhancement of the territory
No full textIn un contesto di trasformazioni socio-economiche e culturali la diffusione di tecnologie digitali ha avuto un ruolo significativo fornendo uno strumento orizzontale in grado di sti- molare la condivisione, semplificare la comunicazione e affiancare l’esperienza fisica di un luogo. Anche musei e percorsi espositivi, coniugando dimensione fisica e digitale, divengono luoghi di ibridazione. Il paper intende presentare un programma di ricerca che indaga l’ambito del design per i Beni Culturali. MEET (Multifaceted Experiences for Enhancing Territories) è un format di progetto collaborativo che coinvolge Istituzioni, professionisti e cittadini nella realizzazione di un percorso espositivo interattivo dedicato alla valorizzazione del Patrimonio culturale locale attraverso processi di co-design.In a context of socio-economic and cultural transformations, the diffusion of digital technologies has played a significant role by providing a horizontal tool that can stimu- late sharing, simplify communication, and support the physical experience of a place. Even museums and exhibition itineraries, combining physical and digital dimensions, become places of hybridisation. This paper presents a research programme that in- vestigates the field of design for Cultural Heritage. MEET (Multifaceted Experiences for Enhancing Territories) is a collaborative project format that involves institutions, profes- sionals, and citizens in the realisation of an interactive exhibition itinerary dedicated to the enhancement of the local Cultural Heritage through co-design processes
Compact early vision signal analyzers in neuromorphic technology
No full textReproducing the dynamics of biological neural systems using mixed signal analog/digital neuromorphic circuits makes these systems ideal platforms to implement low-power bio-inspired devices for a wide range of application domains. Despite these principled assets, neuromorphic system design has to cope with the limited resources presently available on hardware. Here, different spiking networks were designed, tested in simulation, and implemented on the neuromorphic processor DYNAP-SE, to obtain silicon neurons that are tuned to visual stimuli oriented at specific angles and with specific spatial frequencies, provided by the event camera DVS. Recurrent clustered inhibition was successfully tested on spiking neural networks, both in simulation and on the DYNAP-SE board, to obtain neurons with highly structured Gabor-like receptive fields (RFs); these neurons are characterized by tuning curves that are sharper or at least comparable to the ones obtained using equivalent feed-forward schemes, but require a significantly lower number of synapses. The resulting harmonic signal description provided by the proposed neuromorphic circuit could be potentially used for a complete characterization of the 2D local structure of the visual signal in terms of phase relationships from all the available oriented channels
Fragola, le nuove frontiere della ricerca internazionale
No full textStrawberry, Research, International Symposiu
Prevalence Of Malaria In Indians Of Xingu Indian Reservation (brazil)
No full text[No abstract available]722210D'Andretta, Jr., Baruzzi, Sarmento, Kameyama, Souza Dias, Penteado, Jr., Estudo da prevalência da malária em indios do Parque Nacional do Xingu—Determinação dos indices parasitários e esplênico (1969) Revista da Sociedade Brasileira de Medicina Tropical, 3, p. 1
Miquel Carandell Baruzzi. The Orce Man: Controversy, Media and Politics in Human Origins Research. Leiden: Brill (Cultural Dynamics of Science, 3); 2021
No full textObra ressenyada: Miquel CARANDELL BARUZZI, The Orce Man: Controversy, Media and Politics in Human Origins Research. Leiden: Brill, 2021
Severe dysautonomic onset of Guillain-Barré syndrome with good recovery. A clinical and autonomic follow-up study
No full textA 39 year old man with acute panautonomic and mild somatic neuropathy had severe postural hypotension 1 week after onset. Porphyric neuropathy was excluded. The final diagnosis was Guillain-Barré syndrome (GBS). After 2 months he began to recover progressively and after 9 months he presented asymptomatic postural hypotension. We consider the hypothesis of a spectrum of clinico-pathological entities at one end of which lies GBS with autonomic signs and at the other acute pure dysautonomia. The site of the autonomic lesion, might have been in post-ganglionic sympathetic fibers and vagus nerve. © 1990 Masson Italia periodici s.r.l
Correction: Transient acute-onset tetraparesis in a COVID-19 patient (Spinal Cord, (2020), 58, 9, (1042-1044), 10.1038/s41393-020-0493-8)
No full textIn the original version of this article, one affiliation was inadvertently omitted. The affiliation “Clinical and Experimental Medicine and Medical Humanities, Center of Research in Medical Pharmacology, University of Insubria, Varese, Italy” has now been added to the article in association with the author Lucia Princiotta Cariddi. This has been corrected in both the PDF and HTML versions of the Article
Electromyogram and force fluctuation during different linearly varying isometric motor tasks.
No full textThe purpose of this work was to verify if deviation from the mirror-like behaviour of the motor units activation strategy (MUAS) and de-activation strategy (MUDS) and the degree of the error of the motor control system, during consecutive linearly increasing-decreasing isometric tension tasks, depend on the maximum reached tension and/or on the rate of tension changes. In 12 male subjects the surface EMG and force produced by the first dorsal interosseus activity were recorded during two (a and b) trapezoid isometric contractions with different plateau (a: 50% maximal voluntary contraction (MVC) and b: 100% MVC) and rate of tension changes (a: 6.7% MVC/s and b: 13.3% MVC/s) during up-going (UGR) and down-going (DGR) ramps. Ten steps (ST) 6s long at 5, 10, 20, 30, 40, 50, 60, 70, 80 and 90% MVC were also recorded. The root mean square (RMS) and mean frequency (MF) from EMG and the relative error of actual force output with respect to the target (% ERR) were computed. The EMG-RMS/% MVC and EMG-MF/% MVC relationships were not overlapped when the ST and DGR as well as the UGR and DGR data were compared. The % ERR/% MVC relationships during a and b contractions differed from ST data only below 20% MVC. It can be concluded that MUAS and MUDS are not mirroring one each other because MU recruitment or de-recruitment threshold may be influenced by the maximum effort and by the % MVC/s of UGR and DGR. The role of MUs mechanical and/or central nervous system hysteresis on force decrement control is discussed
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