129 research outputs found
Age-related changes in people over 60: implications for second language learning and teaching
Longer life expectancy and easier ways of traveling have modified the over- 60’s way of life in rich countries. The concept of life-long learning, the desire for self-fulfillment, and the interest in cultures different from one’s own are the main reasons why people over 60 take up language courses abroad or in their own country. Our paper examines the over-60s in relation to their increasing demand for foreign language courses. The age-related physical and psychological changes of this group that could have an influence on the language learning process should be considered by the teacher, e.g. when deciding the language teaching techniques to be employed. Furthermore, knowledge of the over-60’s specific needs, abilities and potential could be applied to the design of a targeted foreign language syllabus. The aging process is different in each individual and some suggestions for language teaching might not be necessary for those who are not subject to the age-related changes mentioned; they can however make the teaching and learning process easier in language classes made up entirely of people over 60
Use of recycled fillers in bituminous mixtures for road pavements
This paper reports the results of a laboratory investigation on the use of recycled fillers in bituminous mixtures for road pavements. The fillers were obtained by crushing and sieving (0.00-0.063 mm) Stabilized Bottom Ashes from municipal waste incinerators and Electric Arc Furnace Steel Slags. Moreover, a currently used calcareous filler was included in the research for comparative purposes. Two filler dosages were considered in the experiments.
Laboratory tests aimed at investigating compaction properties, volumetric characteristics, and mechanical performance of the bituminous mixtures.
The results suggest that both types of recycled filler are suitable to be used in bituminous mixtures, also demonstrating that in certain conditions the investigated fillers increase the performance of the corresponding mixtures in comparison to standard (calcareous) filler
An experimental comparison of Deep Learning strategies for AUV navigation in DVL-denied environments
Design, Development, and Testing of an Innovative Autonomous Underwater Reconfigurable Vehicle for Versatile Applications
Probabilistic Particle Filter Anchoring (PPFA): A Novel Perspective in Semantic World Modeling for Autonomous Underwater Vehicles With Acoustic and Optical Exteroceptive Sensors
Deep Learning for on-board AUV Automatic Target Recognition for Optical and Acoustic imagery
In the widespread field of underwater robotics applications, the demand for increasingly intelligent vehicles is leading to the development of Autonomous Underwater Vehicles (AUVs) with the capability of understanding and engaging the surrounding environment. Consequently, the automatic recognition of targets is becoming one of the most investigated topics and Deep Learning-based strategies have shown astonishing results. In the context of this work, two different neural network architectures, based on the Single Shot Multibox Detector (SSD) and on the Faster Region-based Convolutional Neural Network (Faster R-CNN), have been trained and validated, respectively, on optical and acoustic datasets. The models have been trained with the images acquired by FeelHippo AUV during the European Robotics League (ERL) competition, which took place in La Spezia, Italy, in July 2018. The proposed ATR strategy has then been validated with FeelHippo AUV in an on-board postprocessing stage by exploiting the images provided by both a 2D Forward Looking Sonar (FLS) as well as an IP camera mounted on-board on the vehicle.https://youtu.be/6e_Ks924da
Fattori di rischio predittivi dell'outcome nei pazienti oncoematologici ricoverati in terapia intensiva
Il ruolo della terapia intensiva nel modificare il tasso di sopravvivenza dei pazienti oncoematologici critici è tutt’oggi oggetto di dibattito viste le notevoli comorbidità ed il danno d’organo di questi pazienti. La ricerca di fattori di rischio in grado di predire l’outcome diviene mandatoria al fine di giustificare le enormi risorse che vengono utilizzate per la gestione dei malati oncoematologici critici. In questa tesi si analizzano i risultati che sono stati ottenuti in uno studio retrospettivo condotto su un gruppo di 21 pazienti ricoverati presso l’unità di terapia intensiva e rianimazione dell’ospedale Santa Chiara di Pisa in un periodo che va dal gennaio 2005 al maggio 2009. Di tali pazienti sono stati valutati al momento del ricovero: sesso, età, punteggi SOFA e SAPS2, tipo di supporto ventilatorio, PaO2/FiO2, bilirubina, creatinina, comorbidità, globuli bianchi, piastrine, l’uso o meno di farmaci inotropi, se il paziente è stato sottoposto a trapianto o meno. I dati che abbiamo ricavato sono poi stati valutati attravero il Ranksum test per le variabili continue e il test del Chi quadrato per le variabili categoriali. Tali test hanno dimostrato che solamente il tipo di supporto ventilatorio all’ingresso è una variabile statisticamente significativo nel determinare la prognosi del paziente. Il rapporto PaO2/FiO2 quale indice di compromissione della funzionalità respiratoria sfiora la significatività a testimonianza del fatto che la compromissione degli scambi gassosi è forse il principale fattore nel determinarminismo dell’outcome di tali pazienti
I risultati ottenuti sono poi stati confrontati con quelli presenti i letteratura
Dynamic maneuverability analysis: A preliminary application on an autonomous underwater reconfigurable vehicle
CONTINUITÀ DELLA TERAPIA ANTALGICA DOMICILIARE CON TAPENTADOLO NELLA CHIRURGIA PROTESICA ORTOPEDICA
È stato eseguito uno studio su un campione di 68 pazienti sottoposti a chirurgia protesica d’anca e di ginocchio fra Gennaio e Maggio 2016 nell’U.O. di ortopedia 1 del professor Lisanti e U.O. di ortopedia 2 del professor Guido dell'Azienda Ospedaliero Universitaria Pisana da cui è emersa la possibilità di inserire il Tapentadolo in un protocollo multimodale per la gestione del dolore post operatorio. Tale protocollo, che prevede la somministrazione orale del farmaco da cominciare in fase pre operatoria si è rivelato di facile somministrazione e generalmente ben tollerato dal paziente. È interessante notare come i pazienti abbiano una riduzione significativa del dolore già alla fine della seconda giornata post operatoria (si passa da un NRS medio di 3,4 a 0,7 nelle protesi di ginocchio e da un NRS 1,8 a 0,88 in quelli sottoposti a protesi d’anca). Inoltre, quello che emerge da questo studio, è come i pazienti sottoposti al protocollo con tapentadolo abbiano in media meno dolore durante l’esercizio rispetto ai pazienti trattati con morfina in infusione continua. Conseguenza di ciò potrebbe essere una mobilizzazione precoce del paziente
AGE-RELATED CHANGES IN PEOPLE OVER 60: IMPLICATIONS FOR SECOND LANGUAGE LEARNING AND TEACHING.
AbstractLonger life expectancy and easier ways of traveling have modified the over- 60’s way of life in rich countries. The concept of life-long learning, the desire for self-fulfillment, and the interest in cultures different from one’s own are the main reasons why people over 60 take up language courses abroad or in their own country. Our paper examines the over-60s in relation to their increasing demand for foreign language courses. The age-related physical and psychological changes of this group that could have an influence on the language learning process should be considered by the teacher, e.g. when deciding the language teaching techniques to be employed. Furthermore, knowledge of the over-60’s specific needs, abilities and potential could be applied to the design of a targeted foreign language syllabus. The aging process is different in each individual and some suggestions for language teaching might not be necessary for those who are not subject to the age-related changes mentioned; they can however make the teaching and learning process easier in language classes made up entirely of people over 60
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