1,721,478 research outputs found
Io vi dichiaro marito e marito Il dibattito sui diritti delle coppie omosessuali
No full textMatrimoni omosessuali, regolamentazione delle convivenze, adozione per le coppie non sposate. La discussione sui diritti e i doveri delle coppie omosessuali è al centro del dibattito pubblico da anni: come decidere “da che parte stare” in modo serio e informato? E come rafforzare, poi, le proprie scelte? Mettendosi in discussione, continuamente, in un dibattito che non può permettersi di essere solo “gioco delle parti” perché riguarda le persone, le famiglie e le loro esistenze. Francesco D’Agostino e Giannino Piana offrono due posizioni divergenti ma disponibili al confronto, così da formare un quadro complessivo sulle ragioni in campo per uno dei nodi etici e politici del nostro tempo
Manifestazioni a livello del distretto cefalico di patologie sindromiche in età pediatrica.
No full textElastic Stability of Shallow Bending-Active Arches
Full text linkWe present a numerical and experimental investigation on the nonlinear equilibri-um paths and elastic stability of pinned shallow arches realized by buckling a straight strut and then subjected to a transverse central point load. Finite element analyses were run to compare the behavior of arches with and without initial pre-stress condition. The effects of initial shallowness ratio, axial-to-bending stiffness ratio, and initial geometric imperfections on the equilibrium path and bifurcation points were investigated. As an experimental verification, laboratory tests were conducted on a pinned-pinned shallow arch obtained by buckling a thin, slender steel bar. Static and dynamic measurements were carried out to determine the load-displacement curve, the subsequent static deformed configurations, the fre-quency-load curves, and the buckling load. The acquired data were used for buckling load predictions and to obtain stability domains in terms of form factors and imperfection-sensitivity parameters
Self-etch adhesives: A review of the literature
No full textObjectives. This literature review summarizes the main aspects involved in the process of adhesion to enamel and dentin and focuses the reader's attention on the evolution of self-etch systems, highlighting their chemical and bond properties and applications in the clinical practice. Materials and methods. An online search of keywords on the PubMed database was performed to search for scientific articles (reviews, original articles) published in recent years regarding self-etch adhesives. Results. Multiple laboratory and clinical studies described adhesion mechanisms of self-etch adhesives. The majority of these publications found a higher bond quality of self-etch adhesive to dentin, while the bond to enamel remained questionable, especially for single step adhesives. Conclusions. The self-etch technique is considered a valid dental adhesion approach from a restorative standpoint. © 2014 EDRA LSWR SpA
Incremento dell'igiene orale in bambini di eta' prescolare mediante rinforzo programmato
No full textLong-span Suspension Bridge Flutter Analysis with Drag Force Effects
Full text linkThe paper investigates the influence of the drag force onto the flutter velocity and frequency of the Akashi Kaikyo Bridge. Finite element analyses were run in ANSYS by combining unsteady lift and moment actions with: (a) unsteady drag, (b) steady drag, (c) no drag. The finite element results are compared to those obtained by an in-house MATLAB code based on a semi-analytic continuum model and with others from the literature. The continuum model includes flexural-torsional second-order effects induced by steady drag force into the bridge’s equations of motion, in addition to unsteady lift and moment actions. The results show that good predictions of the flutter velocity can be obtained by combining steady drag with unsteady lift and moment
Oral health status of Italian children with Autism Spectrum Disorder
No full textAim Autism Spectrum Disorder (ASD) is characterised by communication deficits and repetitive unusual behaviours. The behaviour guidance of these children represents a challenge for the dental team. The aim of the study was to evaluate the oral health status in a group of Italian children with ASD. Materials and methods Study Design: Sixty-four Italian children with ASD and 64 controls were included. Data were collected by means of questionnaires and clinical examinations. Results Dental trauma (p=0.007), bruxism (p=0.001) and biting objects habit (p=0.021) were more frequent in the study group; fluoride exposure was lower (p=0.001) (chi-square test). The mean plaque index was 1.48 ±0.75 in the study group and 0.81±0.56 in the control group (p=0.001; Mann-Whitney U test); the mean dmft/DMFT was 3.00 ±1.2 and 2.3 ±1.8 in the study group and 1.8 ±1.1 and 1.0 ±1.1 in the control group (p<0.001; Mann-Whitney U test). Anterior open bite was more frequent in the study group (p=0.013; Chi-square test). No significant differences were found for enamel defects, molar relationship, posterior crossbite and deep bite. Significantly more children with ASD showed a negative behaviour (80% vs 35%: p =0.001; Chi-square test). Conclusion Children with ASD have a poorer oral health status than healthy children. The early establishment of a home dental hygiene should be encouraged
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