170,910 research outputs found
Persona e complessità sociale
No full textIl saggio prende in esame la complessità del costrutto della persona come presupposto antropologico essenziale nella elaborazione di progettualità educative
Platão democrata - uma leitura extemporânea.
No full textThe relationship between Plato and democracy has been a widely discussed topic at least since K. Popper on The Open Society and its Enemies. New contributions in this century have presented completely divergent analyses in this regard. This study recovers an old analysis of Plato as a democratic thinker, by the French jurist Jean Bodin, showing his relevance for modern political thought and the very idea of popular sovereignty, one of the main motives of modern and contemporary democratic thought
Area optimization of very low-frequency Gm-C filters
No full textFully integrated low frequency filters are critical cells that should be carefully designed in order to avoid excessive area occupation. In this work we propose an automatic procedure capable of optimizing the design of Gm-C integrators, constituting the basis of a wide class of Gm-C filters. The optimization target is minimizing the cell area with constraints on input range and low frequency noise. The procedure is exploited to show the effect of various design constraints on important filter parameters. Verification with the result of electrical simulations is included
An automated area optimization routine for the design of very low frequency Gm-C integrators
No full textVery low frequency Gm-C filters are critical cells that should be carefully designed in order to avoid an excessive occupation of silicon area, especially when a high dynamic range is required. In this work we propose a routine, which exploits the MATLAB Optimization Toolbox in order to perform an optimum sizing of low frequency Gm-C integrators. The target is minimizing the integrator area, while satisfying design specifications such as unity gain frequency and dynamic range. Upper and lower bounds have been assigned to several design parameters to obtain solutions compatible with real processes. The interaction between noise and low frequency specifications has been investigated and their impact on the area occupation has been shown. The accuracy of the routine, configured with the parameters of a commercial process, has been shown using electrical simulations
An automatic procedure for the synthesis and optimization of very low-frequency Gm–C integrators
No full textFully integrated low frequency filters are critical
cells that should be carefully designed in order to avoid
excessive area occupation. In this work we propose an
automatic procedure capable of optimizing the design of
Gm–C integrators, which constitute the basis of a wide
class of Gm–C filters. The optimization target is minimizing
the cell area with constraints on input range and low
frequency noise. Lower and upper bounds can be fixed to
most quantities and design parameters in order to avoid
solutions that are not compatible with the physical limitations
of the process. The program has been developed
within the MATLAB
TM
platform, exploiting the optimization
toolbox. The effect of several important design
parameters on the optimization of low frequency integrators
has been investigated using the proposed routine. The
strong interaction between noise and low frequency constraints
has been demonstrated, showing the impressive
impact of strict noise specifications on the occupied area.
The actual effectiveness of parameters such as the current
division factor or approaches such as flicker noise rejection
by means of chopper modulation has been investigated.
Examples of integrator synthesis, performed using the
proposed procedure configured with the parameters of a
commercial CMOS process, are presented. The consistence
between the characteristics of the cells and the initial
specifications has been checked using electrical simulations
showing a maximum discrepancy with the initial specifications of nearly 80%. A semi-manual method to
refine the synthesized cells and improve the accuracy is
propose
Body Processing in Children and Adolescents with Traumatic Brain Injury: An Exploratory Study
No full textDysfunctions in body processing have been documented in adults with brain damage, while limited information is available for children. This study aimed to investigate body processing in children and adolescents with traumatic brain injury (TBI) (N = 33), compared to peers with typical development. Two well-known computerized body-representation paradigms, namely Visual Body Recognition and Visuo-spatial Imagery, were administered. Through the first paradigm, the body inversion and composite illusion effects were tested with a matching to sample task as measures of configural and holistic processing of others’ bodies, respectively. The second paradigm investigated with a laterality judgement task the ability to perform first-person and object-based mental spatial transformations of own body and external objects, respectively. Body stimuli did not convey any emotional contents or symbolic meanings. Patients with TBI had difficulties with mental transformations of both body and object stimuli, displaying deficits in motor and visual imagery abilities, not limited to body processing. Therefore, cognitive rehabilitation of body processing in TBI might benefit from the inclusion of both general training on visuo-spatial abilities and specific exercises aimed at boosting visual body perception and motor imagery
Presentazione
No full textSi presenta qui la figura di Ruggiero Romano e l'evento in suo ricordo organizzato presso la Scuola Superiore di Studi Storici di San Marino
Profiling Cognitive and Social Functioning in a Small Cohort with Malan Syndrome
No full textBackground/Objectives: Malan syndrome (MALNS) is an ultra-rare genetic disorder caused by aberrations in the NFIX gene, located at chromosome 19p13.2. Key features of MALNS include general overgrowth, a typical facial gestalt, muscle–skeletal abnormalities, speech difficulties and intellectual disability. Additionally, MALNS frequently presents with autism-like behaviour and social challenges. However, characterisation of the cognitive profile of MALNS, including social perception skills, is limited. Methods: Six children and adolescents with MALNS, whose clinical and emotional–behavioural features had been described in previous studies, were assessed by means of a single, co-normed neuropsychological battery covering multiple cognitive domains. Results: Consistent with their intellectual disability, performance was generally weak across all neuropsychological subtests. Nonetheless, memory for faces, visual attention and contextual (non-verbal) theory of mind emerged as relative strengths of the profile, both at group and individual levels. Conversely, tasks requiring verbal reasoning and language comprehension, such as comprehension of instructions and verbal theory of mind, represented weaknesses for all participants. Conclusions: These findings provide a further characterisation of cognitive and social functioning in MALNS, which can inform future research as well as clinical practice and rehabilitatio
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