Search results for "event"
showing 10 items of 4065 documents
Remineralizing effect of a zinc-hydroxyapatite toothpaste on enamel erosion caused by soft drinks: Ultrastructural analysis
2017
Background The aim of the present in vitro study was to evaluate the protective effects of a zinc-hydroxyapatite toothpaste on repairing enamel erosion produced by a soft drink (Coca-Cola) compared to toothpastes with and without fluoride using Scanning Electron Microscopy (SEM). Material and methods Fifty specimens were assigned to 5 groups of 10 specimens each. (Group 1: no erosive challenge, no toothpaste treatment, group 2: erosive challenge, no toothpaste treatment, 3: erosive challenge, toothpaste without fluoride, group 4: erosive challenge, fluoride toothpaste treatment, group 5: erosive challenge, zinc-hydroxyapatite toothpaste treatment). Repeated erosive challenges were provided …
Comparative evaluation of Nano-Hydroxyapatite preparation and Calcium Sucrose Phosphate on microhardness of deciduous teeth after iron drop exposure …
2016
Background To evaluate and compare the microhardness of deciduous teeth treated with nano-hydroxyapatite and calcium sucrose phosphate after iron drop exposure. Material and Methods Twenty healthy anterior deciduous teeth were collected and stored in 0.9% saline solution at room temperature. All the teeth were immersed in artificial saliva in an incubator shaker at 37° for an hour and then subjected to Vickers microhardness test at 100g load for 5 seconds. The teeth were then immersed in iron drop for 5 minutes, twice daily, rinsed with distilled water and kept in artificial saliva. This procedure was repeated for 7 days and teeth were subjected to microhardness testing. Further, the teeth …
Prioridades de investigación en salud laboral en España
2008
La investigacion en salud laboral es un elemento crucial para impulsar de manera efectiva las politicas publicas y privadas en seguridad y salud en el trabajo1. En Espana, en los ultimos anos, y a pesar de su insufi ciencia, se han abierto diversas posibilidades de fi nanciacion de la investigacion en salud laboral con el subprograma de seguridad y salud en el trabajo del Plan Nacional I+D+i 2004-2007, el Fondo de Investigaciones Sanitarias, el Fondo de Investigacion de Proteccion Social y el Instituto Nacional de Seguridad e Higiene en el Trabajo, entre otras. Por su especial relevancia hay que mencionar la incorporacion en el Plan Nacional I+D+I 2004-2007 de un Subprograma I+D en Segurida…
Repérer, reconnaître et prévenir les risques psychosociaux : une analyse institutionnelle et économique du cas français
2017
In France, psychosocial risks (PSR) became a major concern for society by their stakes in termsof public health, costs for companies and workers. In the late 2000s, the Ministries of Labor and Health took up these challenges by initiating surveys, data collection and scientific works. Despite the development of knowledge about PSR and its consequences, the integration of these new risks into public and managerial policies is still very modest.Through an economic, institutional and empirical analysis, the main objective of this thesis is to contribute to a better knowledge of the consequences of PSR’ exposure for individual and for company, and to analyze the role of prevention authorities t…
UN SISTEMA DI EARLY WARNING RELATIVO AL RISCHIO IDRAULICO FLUVIALE IN AMBITO URBANO BASATO SULLA DEFINIZIONE DI SCENARI DI EVENTO: IL CASO STUDIO DI …
2021
La progressiva espansione delle aree urbanizzate, osservata negli ultimi decenni a scala globale, ha profondamente modificato i processi di formazione e trasferimento del deflusso superficiale ed ha portato ad un considerevole aumento degli elementi esposti a rischio alluvioni. I cambiamenti climatici in atto hanno inoltre indotto un’intensificazione degli eventi meteorici, con un probabile incremento della frequenza e della severità di eventi estremi in ambito urbano come urban flood e fash flood. Secondo una recente stima da parte della Commissione Europea [1], nel periodo 1980-2017 i danni causati da disastri naturali hanno superato i 500 milioni di euro, di cui il 90% dovuti ad eventi i…
Concepts and Framework
2014
Alongside defining the term ‘event’, the relevant literature has developed five characteristics for distinguishing events: (1) the event schedule, (2) the event strategy, (3) the event period, (4) the event content and (5) the event size (Preuss et al., 2009, 26). While singular events in the area of art and culture (including historical jubilee celebrations and concerts) are considered as being of vital importance, singular events in sports are rather an exception and comparatively limited (ibid.) Events in the area of sport are typically considered as regularly held events within an event series (Kurscheidt, 2006). It is however to be differentiated between guest-events being held from a …
TileCal optical multiplexer board 9U prototype
2007
This paper presents the architecture and the status of the optical multiplexer board (OMB) for the ATLAS/LHC Tile hadronic calorimeter (TileCal). This board will analyze the front-end data CRC to prevent bit and burst errors produced by radiation. Besides, due to its position within the data acquisition chain it will be used to emulate front-end data for tests. The first two prototypes of the final OMB 9U version have been produced at CERN. Detailed design issues and manufacture features of these prototypes are described. These prototypes are being validated whereas some firmware developments are being implemented in the programmable devices of the board. Functional descriptions of the boar…
A symbolic distributed event detection scheme for Wireless Sensor Networks
2016
Due to the possibility of extensive and pervasive deployment of many tiny sensor devices in the area of interest, Wireless Sensor Networks (WSNs) result particularly suitable to detect significant events and to react accordingly in industrial and home scenarios. In this context, fuzzy inference systems for event detection in WSNs have proved to be accurate enough in treating imprecise sensory readings to decrease the number of false alarms. Besides reacting to event occurrences, the whole network may infer more information to enrich the event semantics resulting from reasoning processes carried out on the individual nodes. Contextual knowledge, including spatial and temporal relationships, …
Il bullismo omofobico. Caratteristiche, conseguenze e tipologie di intervento
2018
Bullying is widespread and complex; its causes are many and they need multifactorial explanatory models which take into account various interacting dimensions (individual, family, environment, school). The numerous researches on bullying have outlined the general characteristics and contexts as well as the consequences at the level of impaired development both regarding the bullies that victims. This paper aims to review the literature on a particular form of bullying, less studied, the so called homophobic bullying, in which aggression is directed toward homosexuals boys and girls and to all those who deviate from gender stereotypes, seen as a minority, so different and weaker from many po…
Analisi delle evidenze epidemiologiche sui fattori di rischio indoor per malattie respiratorie e allergiche nelle strutture scolastiche [Analysis of …
2012
Il diritto a respirare aria sana nelle scuole è stato sancito già nell’anno 2001 in un documento dell’European Federation of Asthma and Allergy Associations che ha evidenziato scarsa attenzione e assenza di direttive specifiche dell’Unione Europea relativamente agli effetti sulla salute da inquinamento dell’aria nelle scuole, ed è sostenuto dal numero enorme di bambini e ragazzi che frequentano le aule scolastiche. Negli ultimi anni, a livello europeo si è sviluppato un sempre crescente interesse nei confronti dell’effetto della qualità dell’aria dell’indoor scolastico (IAQ) sulla salute dei ragazzi, e sono stati avviati numerosi progetti di ricerca internazionali mirati, appunto, a determi…