Search results for " Maintenance."

Predictors of tooth loss due to periodontal disease in patients following long‐term periodontal maintenance

2015

The pioneering attempt to characterize the response to periodontal treatment of patients undergoing periodontal maintenance (PM) (Wasserman & Hirschfeld 1988) was soon followed by the first studies on periodontal prognosis (McGuire 1991, McGuire & Nunn 1996a,b, McLeod et al. 1998). Two main conclusions were drawn, which remain generally accepted: establishing a periodontal prognosis is the basis of any treatment plan, and actual knowledge of the predictors of tooth loss (TL) is very limited. An extensive review on the subject noted the heterogeneity of the studies and the scarce information that could be drawn from them (Chambrone et al. 2010). Several statistical models analysing the predi…

La vida cotidiana de los vecinos de Manila a través de sus testamentos e inventarios de bienes

2019

With the general objective indicated in its title, this work tries to highlight relevant aspects in the continuity of the Spanish domain in the Philippines, dependent on the maintenance of the Spanish capital. The inevitable selection of topics has lead the preferences of this work towards the residents collaboration to defend the city, the conversion of many of them into traders of exotic products and singular slaves owners, and their collaboration to an incredible miscegenation due to the ethnic variety. On the other hand, to follow the footsteps of the first generation of residents in Manila, at the end of the 16th century and during the 17th century, this work gives us some information …

Accentuating the Positive, Eliminating the Negative? Relationship Maintenance as a Predictor of Two-Dimensional Relationship Quality

2012

In this study, relationship maintenance and its connections with positive and negative relationship quality were examined among Finnish parents (N = 177 women and 153 men; i.e., partners from 150 couples and 27 women and 3 men whose partner did not participate in the study). Relationship maintenance was measured using Stafford, Dainton, and Haas's (2000) version of the RMSM and two-dimensional relationship quality using Fincham and Linfield's (1997) PANQIMS. Structural equation modeling was utilized to analyze paired data. Women were found to report more relationship maintenance behaviors than their partners. The results showed further that relationship maintenance was connected with both p…

A cost model for the selection of a maintenance activity in a series system

2012

DECISION-MAKING MODELS FOR PREDICTIVE MAINTENANCE SERVICE SUPPORT SYSTEMS

2023

Nell'era digitale, la tecnologia è in continua evoluzione, con enormi progressi nell'automazione che consentono una gestione della manutenzione più efficiente ed economica. Le tecnologie digitali stanno convergendo e avanzando insieme alle industrie, determinando progressi significativi nella gestione della manutenzione. La tradizionale strategia di manutenzione preventiva gestita dall'uomo lascia progressivamente spazio alla manutenzione predittiva, che rappresenta un’ottima opportunità per migliorare significativamente la pianificazione della manutenzione del sistema, in particolare per i sistemi più complessi e dal significativo valore monetario. Tuttavia, l’implementazione di tecniche d…

EAN/ERS/ESO/ESRS statement on the impact of sleep disorders on risk and outcome of stroke.

2020

BACKGROUND Sleep disorders are highly prevalent in the general population and may be linked in a bidirectional fashion to stroke, which is one of the leading causes of morbidity and mortality. AIM Four major scientific societies established a task force of experts in neurology, stroke, respiratory medicine, sleep medicine and methodology to critically evaluate the evidence regarding potential links and the impact of therapy. MATERIALS AND METHODS Thirteen research questions were evaluated in a systematic literature search using a stepwise hierarchical approach: first, systematic reviews and meta-analyses; second, primary studies post-dating the systematic reviews/meta-analyses. A total of 4…

Maintaining information in Short-Term Memory between 2 and 6 years old of age : temporal forgetting and helping in maintaining the goal

2014

Working memory is an essential component of thought that is highly involved in learning and academic achievement. However, it is rarely studied in preschoolers, mainly because of a lack of suitable paradigms. Therefore, this thesis investigated the functioning of working memory in children between 2 and 6 years. For this purpose, two original paradigms were used. They were designed to be close to game situations which should help young children to focus their attention on the task. Firstly it was shown that the recall performance decreased over time, even in the absence of an interfering task. Children of this age therefore use a passive maintenance, i.e. without spontaneously implementing …

An exact algorithm for preventive maintenance planning of series-parallel systems

2009

Reliability is a meaningful parameter in assessing the performance of systems such as chemical processing facilities, power plant, aircrafts, ships, etc. In the literature, reliability optimization is widely considered during the system design phase and it is carried out by an opportune selection of both system components and redundancy. On the other hand, the problem of maintaining a required level of reliability by an opportune maintenance policy has been poorly examined. The paper tackles this problem for a system whose major components can be maintained only during a planned system downtime. An exact algorithm is proposed in order to single out the set of components that must be maintai…

Integrated Production and Predictive Maintenance Planning based on Prognostic Information

2019

International audience; This paper address the problem of scheduling production and maintenance operation in predictive maintenance context. It proposes a contribution in the decision making phase of the prognostic and health management framework. Theprognostics and decision processes are merged and an ant colony optimization approach for finding the sequence of decisions that optimizes the benefits of a production system is developed. A case study on a single machine composed of several components where machine can have several usage profiles. The results show thatour approach surpasses classical condition based maintenance policy.

Comparing motivational, self-regulatory and habitual processes in a computer-tailored physical activity intervention in hospital employees - protocol…

2017

Abstract Background Most people do not engage in sufficient physical activity to confer health benefits and to reduce risk of chronic disease. Healthcare professionals frequently provide guidance on physical activity, but often do not meet guideline levels of physical activity themselves. The main objective of this study is to develop and test the efficacy of a tailored intervention to increase healthcare professionals’ physical activity participation and quality of life, and to reduce work-related stress and absenteeism. This is the first study to compare the additive effects of three forms of a tailored intervention using different techniques from behavioural theory, which differ accordin…