Search results for "Operator"

The Unbalanced Linguistic Aggregation Operator in Group Decision Making

2012

Published version of an article in the journal: Mathematical problems in engineering. Also available from Hindawi: http://dx.doi.org/10.1155/2012/619162 Many linguistic aggregation methods have been proposed and applied in the linguistic decision- making problems. In practice, experts need to assess a number of values in a side of reference domain higher than in the other one; that is, experts use unbalanced linguistic values to express their evaluation for problems. In this paper, we propose a new linguistic aggregation operator to deal with unbalanced linguistic values in group decision making, we adopt 2-tuple representation model of linguistic values and linguistic hierarchies to expres…

Mixed l-/l1 fault detection observer design for positive switched systems with time-varying delay via delta operator approach

2014

Published version of an article in the journal: International Journal of Control, Automation and Systems. Also available from the publisher at: http://dx.doi.org/10.1007/s12555-013-0466-1 This paper investigates the problem of fault detection observer design for positive switched systems with time-varying delay via delta operator approach. A new fault sensitivity measure, called l-index, is proposed. The l- fault detection observer design and multi-objective l -/l1 fault detection observer design problems are addressed. Based on the average dwell time approach and the piecewise copositive type Lyapunov-Krasovskii functional method in delta domain, sufficient conditions for the existence of …

Le strategie comunicative ed informative sulla vaccinazione antinfluenzale possono modificare le attitudini degli operatori sanitari (OS)? Risultati …

2018

INTRODUZIONE Circa il 20% degli Operatori Sanitari (OS) contrae annualmente una patologia da virus influenzale e la vaccinazione stagionale è fortemente raccomandata quale migliore strategia di prevenzione tra gli OS. Diverse iniziative sono state messe in atto a livello nazionale per incrementare le scarse coperture vaccinali antinfluenzali evidenziate tra gli OS. In questo studio viene analizzato il trend di adesione vaccinale degli OS operanti presso l’Azienda Ospedaliera Universitaria (AOU) Policlinico di Palermo nelle ultime otto stagioni vaccinali, valutando l’impatto di differenti strategie comunicative ed informative messe in atto nel corso delle ultime tre stagioni vaccinali (2015/…

Campagna social #proteggitixproteggermi: andamento delle coperture vaccinali antinfluenzali degli operatori sanitari dell’AOU Policlinico “P. Giaccon…

2019

Introduzione Ogni anno il 20% circa degli operatori sanitari (OS) contrae l’influenza, continuando a lavorare e favorendo la diffusione dei virus influenzali nei reparti. La copertura media della vaccinazione antinfluenzale tra gli OS italiani si attesta attorno al 22%. Alla base del rifiuto vaccinale degli OS vi sono principalmente le scarse conoscenze, attitudini e percezioni in merito all’efficacia e alla sicurezza della vaccinazione antinfluenzale. In questo studio è stato analizzato il trend della copertura vaccinale contro l’influenza durante le ultime 12 stagioni negli OS dell’Azienda Ospedaliera Universitaria Policlinico (AOUP) di Palermo, valutando l’impatto delle strategie comunic…

Stato vaccinale e immunitario contro le malattie prevenibili da vaccino in un campione di operatori sanitari del Policlinico Universitario di Palermo

2019

Introduzione La vaccinazione degli operatori sanitari (OS) riduce il rischio delle infezioni professionali, previene la trasmissione nosocomiale e garantisce la continuità delle cure sanitarie durante le epidemie di malattie vaccinoprevenibili. Nonostante le raccomandazioni del Piano Nazionale della Prevenzione Vaccinale 2017-2019, la copertura vaccinale degli OS in Italia risulta molto bassa. Scopo dello studio è valutare lo stato vaccinale e immunitario degli OS del Policlinico Universitario di Palermo. Materiali e metodi Un questionario anonimo è stato somministrato online tra Settembre e Dicembre 2018 agli OS del Policlinico Universitario di Palermo. Il questionario era suddiviso nelle …

Digitālās transformācijas projekts telekomunikāciju uzņēmumā

2018

Digitālā transformācija ir uzņēmuma spēja adaptēties tehnoloģiju progresam. Tas prasa organizācijām diversificēt ieņēmumus, mainīt biznesa modeli un attīstīt jaunus pakalpojumus, lai apgūtu augošu digitālo ekosistēmu, kurā mijiedarbojas sakari, tehnoloģijas un mediji. Maģistra darba tēma ir “Digitālās transformācijas projekts telekomunikāciju uzņēmumā”. Darba mērķis ir veicināt jaunu digitālo pakalpojumu attīstību Tele2 organizācijā, kas ļauj stiprināt digitālo transformāciju un potenciāli var palielināt uzņēmuma ieņēmumus nākotnē. Darbs sastāv no trīs nodaļām. Pirmā nodaļa ir projekta pētījums, kur autors analizē telekomunikāciju nozares attīstības globālos izaicinājumus un novērtē digitāl…

Lojalitātes programmas izstrāde mobilajam operatoram

2015

Maģistra darba tēma ir “Lojalitātes programmas izstrāde mobilajam operatoram”. Darba mērķis ir veicināt piedāvājumu dažādību Latvijas mobilo telekomunikāciju nozarē. Darbs ir strukturēts trīs daļās – izpētes daļā veikta telekomunikāciju nozares Latvijā izpēte, projekta priekšlikuma izstrādes daļā piedāvāti potenciālie alternatīvu varianti, kā risināt izvirzīto problēmu, izvēloties ekonomiski veiksmīgāko, projekta rokasgrāmatas izstrādes daļā izvēlētajai alternatīvai veikta detalizēta plānošana. Maģistra darba izstrādes rezultāts ir projekts, kas ietver lojalitātes programmas izstrādi ar četrām tās komponentēm.

RISULTATI DI UNA INDAGINE EFFETTUATA PRESSO L'AOUP “PAOLO GIACCONE” DI PALERMO PER LA VALUTAZIONE DEI COMPLESSI OPERATORI

2006

A method of desingularization for analytic two-dimensional vector field families

1991

It is well known that isolated singularities of two dimensional analytic vector fields can be desingularized: after a finite number of blowing up operations we obtain a vector field that exhibits only elementary singularities. In the present paper we introduce a similar method to simplify the periodic limit sets of analytic families of vector fields. Although the method is applied here only to reduce to families in which the zero set has codimension at least two, we conjecture that it can be used in general. This is related to the famouss Hibert's problem about planar vector fields.

Octupolar excitation of ion motion in a Penning trap: A theoretical study

2014

Abstract High-precision Penning-trap mass spectrometry uses the resonant conversion of the magnetron motional mode into the cyclotron motional mode to determine the cyclotron frequency of the ions under investigation. Usually the conversion process is performed by interaction of the ions with external quadrupolar rf-fields. Recently it was found that conversion by means of octupolar rf-fields entails a tremendous increase in mass resolution and is thus of great interest. However, the conversion results depend in an intricate way on the amplitudes and phases of the octupolar rf-field and of the motional modes of the ions. Experimental progress was hampered by the lack of an underlying theory…