Search results for "CONSTRUCTION"
showing 10 items of 2670 documents
Are subjective outcomes a “missing link” between driving stress and risky driving behaviors of commuters? Assessing the case of a LMIC
2023
Despite the efforts made by different stakeholders, most of Low and Middle-Income Countries (LMICs) continue to systematically report very negative road safety outcomes. In fact, in countries like Colombia, the rate of deaths from traffic crashes has increased in recent years. One of the most affected collectives in this regard -and at the same time one of the least addressed in specialized literature- are driving commuters, which are commonly exposed to several types of threats and stressors configuring an “everyday risk” potentially impairing their health and safety. This study aimed to assess whether there exists an indirect path -mediated by subjective outcomes- linking driving stress a…
I ponti in Sicilia fra XVIII e XIX secolo attraverso la rappresentazione inconografica
2014
Il contributo presenta i primi esiti di una più ampia indagine sui ponti siciliani, finalizzato alla inventariazione dei materiali iconografici relativi alle strutture realizzate o progettate e mai costruite in Sicilia fra XVIII e XIX secolo. I disegni di architettura conservati negli archivi pubblici isolani consentono di verificare conoscenze, tecniche e prerogative dei professionisti chiamati a realizzare o a ristrutturare i ponti. L’intervento prende le mosse dalla celebre incisione del ponte sul fiume Milicia (1729) dell’architetto Ferdinando Fuga, oggetto di una lunga contesa, fino alle sperimentazioni con materiali innovativi e tecniche d’importazione attuate alla metà del XIX secolo…
I ponti in Sicilia fra XVIII e XIX secolo attraverso la rappresentazione iconografica
2013
La comunicación tiene como objetivo catalogar el material iconográfico relacionado con los puentes y los proyectos de puentes elaborados en Sicilia entre los siglos XVIII y XIX. A través de una investigación que estudie los dibujos arquitectónicos conservados en los archivos públicos, se pueden comprobar los conocimientos, las técnicas y las peculiaridades de los profesionales llamados a crear o a restaurar los puentes. Las características orográficas de la isla, rica en ríos de régimen torrencial obligó a una especial atención en este campo. De hecho, son frecuentes las polémicas y los debates en situaciones complejas enfrentando el constante peligro de derrumbe determinado por las inundac…
Effects of the microbial mineral plugging in the unbound layers of road construction. A mathematical model of simulation of the fatigue phenomenon in…
2008
The effectiveness of using LEGO® robotics kits as cognitive and social rehabilitative toys
2020
The present article offers a theoretical contribution to the understanding of the effectiveness of using robotics as cognitive and social rehabilitative toys. Starting from the theoretical foundations of educational robotics in the framework of constructionism, it provides methodological indications related to game activities with robotics behaviour construction kits, such as LEGO® Ev3. Moreover, it discusses empirical studies that evaluated the effectiveness of the use of robotics behaviour construction kits in the field of intellectual disabilities. Practical implications of the present study might be useful for educators, school psychologists, or rehabilitative therapists in the field of…
Rocking behaviour of multi-block columns subjected to pulse-typeground motion accelerations
2016
Ancient columns, made with a variety of materials such as marble, granite, stone or masonry are an important part of theEuropean cultural heritage. In particular columns of ancient temples in Greece and Sicily which support only the architrave arecharacterized by small axial load values. This feature together with the slenderness typical of these structural members clearlyhighlights as the evaluation of the rocking behaviour is a key aspect of their safety assessment and maintenance. It has to be notedthat the rocking response of rectangular cross-sectional columns modelled as monolithic rigid elements, has been widely investigatedsince the first theoretical study carried out by Housner (19…
Musculoskeletal disorders and incongruous postures in workers on ropes: A pilot study
2023
Background: Occupational hazards believed to cause musculoskeletal disorders in rope workers are traditionally associated with maintaining incongruous postures for prolonged periods of time. Design and methods: A cross-sectional survey was conducted on 132 technical operators in the wind energy and acrobatic construction sectors, who work on ropes, analysing the ergonomic characteristics of the environments, the way in which tasks are carried out, the strain perceived by individual workers, and assessing the presence of any musculoskeletal disorders (MSDs) by means of an objective examination focused on the anatomical districts that were the object of our study. Results: Analysis of the dat…
Forensic Analysis of Fire in a Substation of a Commercial Center
2020
In this article, the authors discuss the legal liabilities of the professional engineer as both the engineer of record of a project and the construction site manager. In particular, this article analyzes the case of a fire at the end-user medium voltage–low-voltage (MV–LV) substation of a shopping center in Italy, which occurred a few years after the maintenance works on the electrical installation. The professional engineer who had designed and overseen the construction of the substation was accused of professional negligence. The authors through the examination of applicable technical standards, as well as of safety regulations, demonstrate that the professional engineer had acted diligen…
Health and Safety Implications of Posted Work : The Example of British Engineering Construction
2017
Innovative In Situ and Ex Situ Conservation Strategies of the Madonie Fir Abies nebrodensis
2022
Abies nebrodensis (Lojac.) Mattei is an endemic species of the north-west of Sicily located in an 84 ha area in the Madonie Regional park. The current population is limited to 30 relic adult trees and a fluctuating number of juveniles of natural regeneration. The species is defined as “Critically Endangered” in the Italian list of threatened plants and is classified as CR-D in the 2000 IUCN Red List of Threatened Species. This article reports the key action undertaken by the LIFE4FIR project aimed at preserving A. nebrodensis, and the results obtained so far in three years of activity. OpenArrays SNPs genotyping revealed a high rate of inbreeding in the natural population and that the adult…