326 research outputs found
INDAGINI GEOFISICHE PER LA CARATTERIZZAZIONEDELSOTTOSUOLO INTERESSATO DALLA COSTRUENDAMETROPOLITANA DI TORINO
Viene illustrato l'impiego delle analisi delle onde superficiali di Rayleigh per la stima dei parametri meccanici dei terreni interessati dallo scavo con TBM di una galleria per metropolitan
Use and Efficacy of Thermography for Stratigraphic Analysis of Historical Buildings
The use of thermography made it possible to investigate an ancient church viewed from a historical perspective, in order to learn more about its construction characteristics. This non-destructive diagnostic technique enabled a stratigraphic investigation of the structures in elevation to be conducted, resulting in the acquisition of new information and confirming the validity of its use in this complex field of application.This initial phase of knowledge acquisition provided an opportunity to propose a line of study to be conducted through the application of various instruments and techniques, starting with thermography, in accordance with a rational order. Instrumental results of the investigations as they are carried out, might suggest the location of points in which to continue with subsequent investigations, while at the same time defining appropriate guidelines in assessing the results.L’uso della termografia ha permesso di studiare un’antica chiesa vista da una prospettiva storica, per saperne di più sulle sue caratteristiche costruttive. Questa tecnica diagnostica non distruttiva ha permesso di condurre un’indagine stratigrafica delle strutture in elevazione, ottenendo l’acquisizione di nuove informazioni e confermando la sua validità in questo complesso campo di applicazione. Questa fase iniziale dell’acquisizione delle conoscenze ha offerto l’opportunità di proporre una linea di studio da condurre attraverso l’applicazione di vari strumenti e tecniche, a partire dalla termografia, secondo un ordine razionale. I risultati strumentali delle indagini man mano che vengono eseguiti possono suggerire l’ubicazione dei punti in cui continuare le successive indagini, definendo allo stesso tempo linee guida appropriate per la valutazione dei risultati
Operative Management of Sciatic Nerve Palsy due to Impingement on the Metal Cage after Total Hip Revision: Case Report
This paper discusses a sciatic nerve palsy developed after a right total hip revision with a Burch-Schneider metal cage. A sciatalgic nerve pain appeared after surgery, while the palsy developed in about fifteen days. An electromyography showed the delay of the nerve impulse gluteal level. During the surgical exploration of the hip, a compression of the nerve on the metal cage was observed. The nerve was isolated, released from the fibrotic tissue and from the impingement, and was protected with a muscular flap. The recover from the pain was immediate, while the palsy recovered one month later
Elimination of Xylophages from Wood through Microwave Treatment: Microstructural Experiments
Samples of chestnut wood taken from modern age structures in the Campania Region were subjected to chemical and physical analysis in order to examine the microstructural variations in the material as a result of exposure to microwaves with the aim of devitalising colonies of xylophages. Results showed that the use of microwaves does not lead to alterations in the structure of the wood, but does bring about variations in its hygroscopicity and permeability
Comparison of Fixed and Mobile-Bearing Total Knee Arthroplasty at a Mean Follow-up of 116 Months.
Adult Congenital Permanent Bilateral Dislocation of the Patella with Full Knee Function: Case Report and Literature Review
Congenital permanent dislocation of the patella is a rare disorder of the knee joint in which the patella is permanently displaced, even in extension and is fixed on the lateral aspect of the femoral condyle. The dislocation is irreducible without surgical techniques. This rare condition is usually detected within the first decade of life, because of inability of active extension in the knee and impaired ability during walking. This report presents an unusual case of a 51-year-old man with bilateral congenital permanent dislocation of the patella. The pathology had never been treated because there were few symptoms. The patient presented with right knee pain caused by a fall on the knee during his work. The right knee was painful on the lateral side and the clinical signs were positive for pathology of the lateral meniscus, confirmed by MRI. The clinical and the imaging findings suggested a lesion of the lateral meniscus as the probable cause of the pain. Therefore we performed a knee arthroscopy, whose intra-operative findings confirmed the MRI findings. During the surgery we performed just a selective arthroscopic meniscectomy, without correcting patella dislocation, because the condition was unusually asymptomatic before the trauma
INDAGINI GEOFISICHE PER LA CARATTERIZZAZIONEDELSOTTOSUOLO INTERESSATO DALLA COSTRUENDAMETROPOLITANA DI TORINO
Viene illustrato l'impiego delle analisi delle onde superficiali di Rayleigh per la stima dei parametri meccanici dei terreni interessati dallo scavo con TBM di una galleria per metropolitana
High intensity intermittent games-based activity and adolescents’ cognition: moderating effect of physical fitness
Background: An acute bout of exercise elicits a beneficial effect on subsequent cognitive function in adolescents. The effect of games-based activity, an ecologically valid and attractive exercise model for young people, remains unknown; as does the moderating effect of fitness on the acute exercise-cognition relationship. Therefore, the aim of the present study was to examine the effect of games-based activity on subsequent cognition in adolescents, and the moderating effect of fitness on this relationship.
Methods: Following ethical approval, 39 adolescents (12.3 ± 0.7 year) completed an exercise and resting trial in a counterbalanced, randomised crossover design. During familiarisation, participants completed a multi-stage fitness test to predict VO2 peak. The exercise trial consisted of 60-min games-based activity (basketball), during which heart rate was 158 ± 11 beats∙min−1. A battery of cognitive function tests (Stroop test, Sternberg paradigm, trail making and d2 tests) were completed 30-min before, immediately following and 45-min following the basketball.
Results: Response times on the complex level of the Stroop test were enhanced both immediately (p = 0.021) and 45-min (p = 0.035) post-exercise, and response times on the five item level of the Sternberg paradigm were enhanced immediately post-exercise (p = 0.023). There were no effects on the time taken to complete the trail making test or any outcome of the d2 test. In particular, response times were enhanced in the fitter adolescents 45-min post-exercise on both levels of the Stroop test (simple, p = 0.005; complex, p = 0.040) and on the three item level of the Sternberg paradigm immediately (p = 0.017) and 45-min (p = 0.008) post-exercise.
Conclusions: Games-based activity enhanced executive function and working memory scanning speed in adolescents, an effect particularly evident in fitter adolescents, whilst the high intensity intermittent nature of games-based activity may be too demanding for less fit children
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