Dissertations / Theses on the topic 'P-Centre'
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1
Elshaikh, Abdalla Mohamed. "Adaptive heuristic methods for the continuous p-centre location problems." Thesis, University of Kent, 2014. https://kar.kent.ac.uk/47618/.
Abstract:
This research studies the p-centre problem in the continuous space. This problem is particularly useful in locating emergency facilities, such as fire-fighting stations, police stations and hospitals where it is aimed to minimise the worst-case response time. This problem can be divided into a single facility minmax location problem (1-centre) and multi-facility minmax location problem (p-centre). The solution of the 1-centre location problem can be found optimally in polynomial time by using the well known Elzinga-Hearn algorithm for both the weighted and the unweighted case. The objective of the p-centre problem is to locate p facilities (p>1) so as to minimise the radius of the largest circle. However, in this case, we cannot always guarantee optimality as the problem is known to be NP hard. The aim of the research is to develop and analyse powerful meta-heuristics including the hybridisation of exact methods and heuristics to solve this global optimisation problem. To our knowledge this is the first study that meta-heuristics are developed for this problem. In addition larger instances previously used in the literature are tested .This is achieved by designing an efficient variable neighbourhood search, adapting a powerful perturbation method and extending a newly developed reformulation local search. Large instances are used to evaluate our approaches with promising results.
2
Taylor, Wendy Jane. "A measurement of b-quark fragmentation fractions in p¢p collisions at [centre of mass energy]=1.8 TeV." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0004/NQ41323.pdf.
3
XISTE, ESPITALIER-NOEL MARIE-PAULE. "Etude des consultations du centre medico-psycho-pedagogique (c. M. P. P. ) henri wallon de saint-denis de la reunion." Aix-Marseille 2, 1992. http://www.theses.fr/1992AIX20101.
4
Callaghan, Rebecca Joanne. "An investigation into exact methods for the continuous p−centre problem and its related problems." Thesis, University of Kent, 2016. https://kar.kent.ac.uk/60502/.
Abstract:
This thesis will analyse, investigate and develop new and interesting ideas to optimally solve a location problem called the continuous p−centre problem. This problem wishes to locate p facilities in a plane or network of n demand points such that the maximum distance or travel time between each demand point and its closest facility is minimised. Several difficulties are identified which are to be overcome to solve the continuous p−centre problem optimally. These relate to producing a finite set of potential facility locations or decreasing the problem size so that less computational time and effort is required. This thesis will examine several schemes that can be applied to this location problem and its related version with the aim to optimally solve large problems that were previously unsolved. This thesis contains eight chapters. The first three chapters provide an introduction into location problems, with a focus on the p−centre problem. Chapter 1 begins with a brief history of location problems, followed by the various classifications and methodologies used to solve them. Chapter 2 provides a review of the methods that have been used to solve the p−centre problem, with a focus on the continuous p−centre problem. An overview of the location models used in this research is given in Chapter 3, alongside an initial investigative work. The next two chapters enhance two well-known optimal algorithms for the continuous p−centre problem. Chapter 4 develops an interesting exact algorithm that was first proposed over 30 years ago. The original algorithm is reexamined and efficient neighbourhood reductions which are mathematically supported are proposed to improve its overall computational performance. The enhanced algorithm shows a substantial reduction of up to 96% of required computational time compared to the original algorithm, and optimal solutions are found for large data sets that were previously unsolved. Chapter 5 develops a relatively new relaxation-based optimal method. Four mathematically supported enhancements are added to the algorithm to improve its efficiency and its overall computational time. The revised reverse relaxation algorithm yields a vast reduction of up to 87% of computational time required, which is then used to solve larger data sets where n ≤ 1323 optimally. Chapter 6 creates a new relaxation-based matheuristic, called the relaxed p' matheuristic, by combining a well-known heuristic and the optimal method developed in Chapter 5. The unique property of the matheuristic is that it deals with the relaxation of facilities rather than demand points to establish a sub-problem. The matheuristic yields a good, but not necessarily optimal, solution in a reasonable time. To guarantee optimality, the results found from the matheuristic are embedded into the optimal algorithms developed in Chapters 4 and 5. Chapter 7 adapts the optimal algorithm developed in Chapter 5 to solve two related location problems, namely the α−neighbour p−centre problem and the conditional p−centre problem. The α−neighbour p−centre problem is investigated and solved where α = 2 & 3. A scenario analysis is also conducted for managerial insights by exploring changes in the number of facilities required to cover each demand point. Furthermore, an existing algorithm for the conditional p−centre problem is enhanced by incorporating the optimal algorithm proposed in Chapter 5, and it is used to solve large data sets where the number of preexisting facilities is 20. This chapter therefore demonstrates that an algorithm developed in this research can be adapted or used to enhance existing algorithms to optimally solve more practical and challenging related location problems. Finally, Chapter 8 summarises the findings and main achievements of this research, and outlines any further work that could be worthwhile exploring in the future.
5
Mazi, Abdullah Mazi E. "Combining heuristic and exact approach for the vertex p-centre problem and other related location problems." Thesis, University of Kent, 2010. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.544027.
6
CHABANNE, MARC. "Etude epidemiologique des accidents domestiques de l'enfant au centre hospitalier p. Oudot de bourgoin-jallieu : a propos de 1662 cas." Lyon 1, 1991. http://www.theses.fr/1991LYO1M127.
7
VINCENT, BRUNO ROGER MICHEL. "L'hopital de jour du centre de diagnostic de l'hotel-dieu de l'a. P. De paris : organisation et bilan d'activite 1989-1990." Clermont-Ferrand 1, 1991. http://www.theses.fr/1991CLF13053.
8
FOURNET-FAYAS, MARTINE. "Valeur semeiologique de l'anticorps anti-proteine p 25 isole, depiste chez les donneurs de sang au centre de transfusion sanguine de lyon." Lyon 1, 1988. http://www.theses.fr/1988LYO1M087.
9
CABONI, FEDERICA. "Town centre management: developing new strategies based on the e-technology challenge." Doctoral thesis, Università degli Studi di Cagliari, 2014. http://hdl.handle.net/11584/266549.
Abstract:
Over time, the Town Centre has always had an important role in the development of local
economies (McAteer and Stephens, 2011), experiencing periods of growth and decline that
influenced its physiognomy. The Town Centre’s decline was caused by several different factors,
such as the decentralization of retail activities away from, and on the edge of, the Town Centre
(Schiller, 1986; 1988), and the development of new forms of selling over the Internet (Bhatti, 2007;
Ickler, et al., 2011). All in all, this has led to a crisis for Town Centre’s retailers, prejudicing their
development and enhancement (Alzubaidi et al., 1997; Thomas and Bromley, 2003).
In order to contrast the pauperization of the Town Centre and to improve its growth, during
the last decades in several European Cities was created the Town Centre Management (TCM)
schemes, to find practical responses to the emerging complexities of urban revitalisation (Coca-
Stefaniak et al., 2009). Taking into consideration this scenario, the aim of this work is to further the
understanding of the role-played by TCM’s over time in revitalizing the commercial activities in the
Town Centre. Studying TCM programs and activities carried out in different European cities will
work towards that better understanding of their effectiveness. By investigating the TCM programs
in some Swedish and Italian cities, this study aims at identifying the core elements in the TCM
strategies related to improving and developing the Town Centre.
This thesis is organized in three autonomous papers, where each of them constitutes a
specification of one general topic. The first paper aims to analyse the existing literature to highlight
scholars’ point of view and, to verify whether the retail activity maintains the central role in the
perspective of the Town Centre revitalization, or if the attention has shifted to other activities. One
question of this analysis is: What are the research lines that emerge as attracting interest for future
development regarding the Town Centre revitalization? This paper built the review of the literature
(Roley and Slack, 2004) by using a retrieval procedure based on the combination of several
keywords in order to identify the journals where the considered topic assumes relevance.
The purpose of the second paper is to understand the way in which the TCM, through the
adoption of practical strategies, tackles problems related to the decentralization of retail activities
away from the Town Centre. More precisely, the research questions are: what are the answers that
Cities gave to the development of Town Centre problems? In the European context what kind of
organizations has been created to pursue the goal to revitalize the Town Centre? Does an accord
exist between scholars to the most effective initiatives that Cities have to adopt? To answer these
questions a qualitative method based on multiple case study methodology was adopted (Eisenhardt,
1989; 1991; Yin, 1994; 2009). The multiple, case study permitted to make a comparison between
different realities, providing a stronger base to clarify the several multifaceted aspects of the same phenomenon.
From the analysis of the literature and empirical cases, studied in the first two papers, it
emerged that the use of Internet and ways to sell through it (Bhatti, 2007; Ickler et al., 2009; Curty,
and Zhang, 2011) are rarely adopted as tools able to revitalize the Town Centre. Inasmuch, the third
paper aims to highlight what kind of e-technologies - after a specific analysis of each of ecommerce,
s-commerce and m-commerce - are more suitable than others to help Town Centres
retail activities to regain their past glory.
The research questions are: What are the reasons for the development of new forms of
selling? What are the new forms of sale over the Internet developed in the last decades? And, in
what way is it possible to connect old and new forms of selling in order to improve the retail
attractiveness of Town Centres? To find a way by which it is possible to connect old and new forms
of selling that could improve the retail experience in Town Centres, a model has been proposed.
The implications of this thesis are both theoretical, since it contributes to a better
understanding of the relationship between TCM and the renaissance of the retailing activities (in
order to support the urban revitalization), and practical, as it emphasizes the role of the internet and
new forms of selling over it that could be integrated within traditional forms of selling within fixed
location stores in the Town Centre.
10
Durán, Mateluna Cristian. "Exact solution methods for large-scale discrete p-facility location problems." Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAE001.
Abstract:
Cette thèse porte sur la solution exacte des problèmes NP-difficiles du p-median et du p-centre, des problèmes d'optimisation combinatoire qui deviennent rapidement difficiles à résoudre lorsque la taille de l'instance augmente. Ces problèmes de localisation discrète consistent à ouvrir un nombre défini p d'installations, puis à leur affecter un ensemble de clients selon une fonction objectif à minimiser.Tout d'abord, nous étudions le problème du p-median qui cherche à minimiser la somme des distances entre les clients et les installations ouvertes auxquelles ils sont affectés. Nous développons un algorithme basé sur la décomposition de Benders qui surpasse les méthodes exactes de l'état de l'art. L'algorithme considère une approche en deux étapes et ainsi qu'un algorithme efficace pour la séparation des coupes de Benders. Cette méthode est évaluée sur plus de 230 instances de benchmark avec jusqu'à 238025 clients et sites. De nombreuses instances sont résolues à l'optimalité pour la première fois ou ont leur meilleure solution connue améliorée.Deuxièmement, nous explorons le problème du p-centre qui cherche à minimiser la plus grande distance entre un client et l'installation ouverte qui en est la plus proche. Nous comparons d'abord les cinq principales formulations MILP de la littérature. Nous étudions la décomposition de Benders et nous proposons également un algorithme exact basé sur une procédure de partionnement des clients reposant sur la structure du problème. Toutes les méthodes proposées sont comparées à l'état de l'art dans des instances de benchmark. Les résultats obtenus sont analysés, mettant en évidence les avantages et les inconvénients de chaque méthode.Enfin, nous étudions un problème robuste du p-centre en deux étapes avec une incertitude sur les demandes et les distances des nœuds. Nous introduisons la reformulation robuste du problème basée sur les cinq principales formulations déterministes MILP de la littérature. Nous prouvons que seul un sous-ensemble fini de scénarios de l'ensemble d'incertitude infini peut être pris en compte sans perdre l'optimalité. Nous proposons également un algorithme de génération de colonnes et de contraintes et ainsi qu'un algorithme de branch-and-cut pour résoudre efficacement ce problème. Nous montrons comment ces algorithmes peuvent également être adaptés pour résoudre le problème robuste d'une seule étape. Les différentes formulations proposées sont testées sur des instances générées aléatoirement et sur un cas d'étude de la littératureThis thesis focuses on the exact solution of the NP-hard problems p-median and p-center, combinatorial optimization problems that quickly become difficult to solve as the instance size increases. These discrete location problems involve opening a defined number p of facilities and then allocating to them a set of clients according to an objective function to be minimized.First, we study the p-median problem, which seeks to minimize the sum of distances between clients and the open facilities to which they are allocated. We develop an algorithm based on Benders decomposition that outperforms state-of-the-art exact methods. The algorithm considers a two-stage approach and an efficient algorithm for separating Benders cuts. The method has been evaluated on over 230 benchmark instances with up to 238025 clients and sites. Many instances are solved to optimality for the first time or have their best known solution improved.Secondly, we explore the p-center problem, which seeks to minimize the largest distance between a client and its nearest open facility. We first compare the five main MILP formulations in the literature. We study the Benders decomposition and also propose an exact algorithm based on a client clustering procedure based on the structure of the problem. All the proposed methods are compared with the state-of-the-art on benchmark instances. The results obtained are analyzed, highlighting the advantages and disadvantages of each method.Finally, we study a robust two-stage p-center problem with uncertainty on node demands and distances. We introduce the robust reformulation of the problem based on the five main deterministic MILP formulations in the literature. We prove that only a finite subset of scenarios from the infinite uncertainty set can be considered without losing optimality. We also propose a column and constraint generation algorithm and a branch-and-cut algorithm to efficiently solve this problem. We show how these algorithms can also be adapted to solve the robust single-stage problem. The different proposed formulations are tested on randomly generated instances and on a case study drawn from the literature
11
Bougrain, Frédéric. "Les P. M. E. Et l'innovation : Implications en matière de politique technologique régionale - Cas de la région Centre et comparaison avec le Bade-Wurtemberg." Orléans, 2000. http://www.theses.fr/2000ORLE0502.
Abstract:
La reconnaissance tardive de la contribution des p. M. E. A l'emploi et a la production s'est accompagnee d'un renouveau des politiques technologiques en leur faveur. Sur la base de ce constat, notre travail de recherche a pour objectif de definir les caracteristiques du processus d'innovation des p. M. E. Et d'examiner dans quelle mesure les interventions des autorites politiques regionales repondent aux besoins des p. M. E. Innovantes. La premiere partie est centree sur l'activite et les strategies d'innovation des p. M. E. Nous nous appuyons sur 313 projets ayant beneficie d'une procedure d'aide de l'anvar centre pour montrer que la taille n'influence pas de maniere significative le succes d'un projet. Leur reussite apparait conditionnee par les partenariats technologiques etablis par les firmes et l'existence de competences internes aux p. M. E. Notre analyse confirme ainsi l'idee d'une complementarite entre les ressources externes et internes a l'entreprise. Dans une deuxieme partie, nous considerons que les politiques qui ont integre a la fois la nature interactive du processus d'innovation et la specificite organisationnelle des entreprises, rencontrent l'echo le plus favorable aupres des dirigeants de p. M. E. Traditionnelles. Neanmoins, l'efficacite des aides financieres directes et du developpement des structures d'intermediation technologique, est limitee si en interne les p. M. E. N'ont pas les competences suffisantes pour assimiler l'information externe. Par ailleurs les autorites politiques ne doivent pas considerer que le champ d'activite des p. M. E. Se limite a l'environnement regional. Sur ces bases theoriques et empiriques, nous comparons la politique technologique en region centre a celle du land du bade-wurtemberg (allemagne). L'interet d'une telle analyse est d'apprecier les pratiques politiques de pays qui n'ont pas les memes traditions culturelles et institutionnelles.
12
EZELIN, MARIE-CHRISTINE. "Suivi medico-physiologique du centre permanent d'entrainement et de formation de tennis au c. R. E. P. S. De reims chez 8 garcons minimes." Reims, 1989. http://www.theses.fr/1989REIMM068.
13
VIALA, MARIE-PAULE. "Le c. A. M. S. P. (centre d'action medico-social precoce) de saint-etienne : a propos de 120 enfants ; leur prise en charge au c.a.m.s.p. et leur devenir." Saint-Etienne, 1990. http://www.theses.fr/1990STET6211.
14
Goncalves, Philippe. "PÉTROLOGIE ET GÉOCHRONOLOGIE DES GRANULITES DE ULTRA-HAUTES TEMPÉRATURES DE L'UNITÉ BASIQUE D'ANDRIAMENA (CENTRE-NORD MADAGASCAR). Apport de la géochronologie in-situ U-Th-Pb à l'interprétation des trajets P-T." Phd thesis, Clermont-Ferrand 2, 2002. http://www.theses.fr/2002CLF21375.
Abstract:
L'évolution thermomécanique de l'unité d'Andriamena est marquée par la superposition de quatre événements thermiques : 2. 7 Ga, 790 Ma et ~500 Ma. La signification de l'événement Archéen (2. 7 Ga) reste encore problématique : l'événement fini-Archéen (2. 5 Ga) correspond au métamorphisme de UHT (1050°C, 11. 5 kbar). Le Néoprotérozoïque moyen (790Ma) est marqué par un magnatisme basique-ultrabasique contemporain d'un métamorphisme granulithique (850°C, 7 kbar) interprété comme le témoin d'un contexte du type arc continental. L'événement Cambrien (~500 Ma) est à l'origine du champ de déformation finie : il résulte de la superposition de deux phases D1 et D2 synchrones d'un métamorphisme amphibolitique (700°C, 5-6 kbar) compatible avec un raccourcissement horizontal Est-Ouest résultant de la convergence lors de la consolidation du Gondwana. Les Mg-granulites de UHT préservent de nombreuses textures minéralogiques permettant de retracer un trajet PT pétrographique apparemment continu. Les données géochronologiques obtenues par datation in-situ sur monazite à la microsonde électronique montrent que ce trajet pétrographique doit être considéré comme un trajet discontinu résultant de la superposition de deux événements : 2. 5 Ga et 790 Ma. De plus, une partie du trajet pétrographique correspond à un trajet apparent sans signification tectonique, qui résulte de l'équilibration des paragenèses réfractaires de UHT à basses pressions lors de l'événement 790 Ma. La distinction qui existe entre trajet pétrographique et réel montre l'importance de déterminer l'âge absolu des différentes paragenèses. La datation in-situ permet de dater des minéraux dans leur contexte textural et donc de corréler âge et assemblages métamorphiques. Par une nouvelle approche dans leur contexte textural et donc de corréler âge et assemblages métamorphiques. Par une nouvelle approche de datation in-situ qui utilise les méthodes chimiques (microsondes) et isotopiques (ID-TIMS), on combine haute résolution spatiale et haute précision analytique sur les mêmes les grains extraits par micro-forage en lame mince
15
Tan, Firwan. "Un modèle de création d'un centre d'entreprise et d'innovation dans un pays en voie d'industrialisation (P. V. I. ) : application opérationnelle pour la création du CEI-Limatek à Sumatra ouest en Indonésie." Vandoeuvre-les-Nancy, INPL, 1992. http://www.theses.fr/1992INPL137N.
Abstract:
Il est important de développer les opportunités industrielles qui permettent la participation progressive des entreprises de petite taille (PME) dans l'économie du pays. La création et le développement des PME à partir des produits d'innovation technologique (PME que nous appelons PMET) semblent donc essentiels dans un pays en voie d'industrialisation (PVI) comme l'Indonésie. Il est important d'aider efficacement les créateurs dans leur démarche de création de nouvelles activités technologiques par la mise en place de facilitateurs ou de transféreurs tels que les CEI. Une étude des expériences en cours dans les pays développés d'Europe nous est apparue un préalable nécessaire à tout essai de proposition. Cette étude nous a permis d'identifier les rôles d'un CEI développé en Europe, ses éléments de base, sa mission, ses activités de base, ses activités spécifiques et tout ce qui concerne les activités d'animation ainsi que les services connexes. Nous avons détecté également un modèle théorique de création d'entreprise et des programmes connexes qui pourront être transférés ou adaptes en PVI. Les résultats de nos travaux de recherche se concrétisent par l'élaboration d'un modèle de conception d'un centre d'entreprise et d'innovation (CEI), comme facilitateur de la création et du développement de PMET dans un pays en voie d'industrialisation comme l'Indonésie
16
Ghorbel, Nabil. "Etude sismique et magneto-tellurique du socle et de la couverture sedimentaire dans la partie sud de l'anomalie magnetique du bassin de paris , le val de loire et le nivernais." Paris 6, 1987. http://www.theses.fr/1987PA066395.
Abstract:
Cette etude permet de distinguer deux types de socle. A l'est de la loire, un type granitique, un profil transversal entre villequiers et beffes montre qu'au passage de l'anomalie le socle forme un horst dont le toit est situe a 1000 m de profondeur environ. A l'ouest de la loire, un socle probablement metamorphique
17
Carreto, Figueroa Teresa María. "Centro de Creatividad UDLA-P." Thesis, Universidad de las Américas Puebla, 2004. http://catarina.udlap.mx/u_dl_a/tales/documentos/lar/carreto_f_tm/.
18
Tannoury, N. "Calibration des algorithmes d'identification des jets issus de quarks b et mesure de la section efficace différentielle de production de paires de quarks top-antitop en fonction de la masse et de la rapidité du système top-antitopdans les collisions p-p à une énergie au centre de masse de 7 TeV auprès de l'expérience ATLAS au LHC." Phd thesis, Aix-Marseille Université, 2012. http://tel.archives-ouvertes.fr/tel-00785360.
Abstract:
ATLAS, LHC, quark b, quark top, étiquetage des jets issus de quark b, calibration des algorithmes d'étiquetage des jets issus de quark b, quarks top-antitop, section efficace, section efficace différentielle des paires top-antitop, masse du top, rapidité du top, nouvelle physique.
19
Scalella, Beatrice <1996>. "Le politiche di internazionalizzazione del Centre Pompidou." Master's Degree Thesis, Università Ca' Foscari Venezia, 2020. http://hdl.handle.net/10579/17583.
Abstract:
L’elaborato si propone di analizzare i risultati conseguenti alle partnership estere del Centre Pompidou di Parigi sia dal punto di vista economico che culturale e didattico. Il problema a cui si vuole cercare di rispondere riguarda soprattutto l’aspetto museale, ovvero se questo tipo di accordi contribuisca a un miglior funzionamento del museo dal punto di vista degli scopi dell’istituzione stessa. Per analizzare nella maniera più oggettiva possibile i risultati di questi decentramenti al di fuori di Parigi e, se si esclude il caso del Centre Pompidou-Metz, della Francia, si esaminano i dati economici e i cambiamenti socioculturali avvenuti a causa di questi progetti. Come gli studi che hanno studiato il caso del museo Guggenheim a Bilbao e il suo effetto sulla città dal punto di vista urbano, turistico e culturale, la tesi analizzerà ogni caso in ogni settore, dall’architettura alle acquisizioni, dai progetti didattici alle nuove politiche che si adattano a un mondo in perenne cambiamento. I saggi e i libri presi in considerazione per sviluppare una migliore analisi critica riguardano soprattutto le politiche culturali francesi ed europee, ma anche gli studi sul brand museale e sull’incredibile innovazione che il Centre Pompidou ha avuto negli ultimi decenni, diventando il centro culturale più importante al mondo. Con questa metodologia si vuole avere degli strumenti chiari che permettano una critica agli accordi che si focalizzano maggiormente sul risultato economico più che sul reale potere d’inclusione e adattamento della cultura, e un’attestazione del fatto che questi progetti seguano le funzioni per cui il museo è nato.
20
Mohd, Aabid. "Original chiral scaffolds bearing P-stereogenic centres." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAF050/document.
Abstract:
Les composés organiques présentant une chiralité portée par un atome de phosphore sont appelés composés P-chiraux, P-chirogéniques ou P-stéréogéniques. Ces composés trouvent des nombreuses applications dans l’industrie agrochimique et pharmaceutique, en tant qu’outils de coordination, mais surtout en catalyse organométallique asymétrique en tant que ligands privilégiés (Prix Nobel pour W. S. Knowles en 2001). Cependant, la synthèse de composés P-chiraux reste un défi majeur et les méthodes actuellement utilisées sont souvent difficiles à mettre en oeuvre et multi-étapes. Au cours de cette thèse nous nous sommes intéressés au développement d’une méthodologie efficace et inédite pour la synthèse de composés P-stéréogeniques. Notre approche est basée sur la réaction d’Atherton-Todd et implique le dédoublement cinétique dynamique lors d’un couplage entre un phénol portant un auxiliaire de chiralité, ie. le sulfoxyde, et un H-phosphinate racémique. De plus, la post-functionalisation des composés diastéréomériques P-chiraux ainsi obtenus est possible dans des conditions douces, permettant ainsi d’accéder à un large panel de composés P-stéréogeniques. Ainsi, cette nouvelle méthodologie permet de synthétiser, via un couplage O-P diastéréosélectif, des précurseurs originaux de composés P-chiraux variésOrganic compounds having chirality on phosphorous atom, are called P-stereogenic, P-chirogenic or P-chiral compounds. These compounds are widely used in agrochemistry, pharmacy, coordination chemistry and in organometallic asymmetric catalysis, as one of the most important classes of chiral ligands (Nobel Prize 2001; W. S. Knowles). However, access to these P-stereogenic compounds, is challenging due to the complex, tedious and multi-steps synthetic methodologies. Herein, we report a highly efficient novel methodology to access P-stereogenic compounds, which often involves dynamic kinetic resolution (DKR) under modified Atherton-Todd reaction conditions, using a racemic H-phosphinate and an enantiopure phenol bearing a chiral sulfoxide moiety. Furthermore, the newly obtained O-P coupling product can potentially be post-functionalised under mild conditions to obtain various original P-stereogenic scaffolds. Thus, these O-P coupling products can be considered as highly potential precursors to access a variety of original P-stereogenic molecules
21
Scott, Sophie Kerttu. "Perceptual centers in speech-acoustic determinants." Thesis, University College London (University of London), 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342728.
Abstract:
Perceptual centres, or P-centres, represent the perceptual moments of occurrence of acoustic signals - the 'beat' of a sound. P-centres underlie the perception and production of rhythm in perceptually regular speech sequences. P-centres have been model ed both in speech and non speech (music) domains. The three aims of this thesis were tost out current P-centre models to determine which best accounted for the experimental data b)to identify a candidate parameter to map P-centres onto (a local approach) as opposed to the previous global models which rely upon the whole signal to determine the P-centrethe final aim was to develop a model of P-centre location which could be applied to speech and non speech signals. The first aim was investigated by a series of experiments in whicha)speech from different speakers was nvestigated to determine whether different models could account for variation between speakersb)whether rendenng the amplitude time plot of a speech signal affects the P-centre of the signa whether increasing the amplitude at the offset of a speech signal alters P-centres in the production and perception of speech. The second aim was carried out by manipulating the rise time of different speech signals to determine whether the P-centre was affected, and whether the type of speech sound ramped affected the P-centre shift1 manipulating the rise time and decay time of a synthetic vowel to determine whether the onset alteration was had more affect on P-centre than the offset manipulationnd whether the duration of a vowel affected the P-centre, if other attributes (amplitude, spectral contents) were held constant. The third aim - modelling P-centres - was based on these results. The Frequency dependent Amplitude Increase Model of P-centre location (FAIM) was developed using a modelling protocol, the APU GammaTone Flterbank and the speech from different speakers. The P-centres of the stimuli corpus were highly predicted by attributes of the increase in amplitude within one output channel of the filterbank. When this was used to make predictions of the P-centres for all the stimuli used in the thesis, 85°c of the observed variance was accounted for. The FAIM approach combines aspects of previous speech and non speech models (Gordon 1987, Marcus 1981, Vos and Rasch 1981). P-centre were thus modelled n a non speech specific, local manner.
22
Utama, Widya. "Propriétés physiques des grès de Fontainebleau et de Sihapas et discrimination lithologique fondée sur les paramètres physiques des roches." Paris, Institut de physique du globe, 2002. http://www.theses.fr/2002GLOB0012.
Abstract:
L'étude des propriétés électriques, hydrauliques et élastiques de deux grès, l'un argileux (Sihapas) et l'autre sans argile (Fontainebleau), a montré que, dans les deux cas, la perméabilité et le facteur de formation sont bien corrélés. La présence d'argiles influence peu le couplage hydroélectrique, malgré le fait qu'elle provoque un fort découplage entre la porosité et la perméabilité. Le paramètre qui conditionne le couplage hydroélectrique est la taille des grains. Dans le grès de Fontainebleau, cette taille augmente vers les faibles porosités (cimentation des grains), diminuant ainsi la perméabilité et augmentant le facteur de formation. La cimentation des grains conduit par ailleurs, à une réduction de la porosité et à l'existence d'un seuil de percolation hydraulique, électrique identique (oP = 0,019) pour les deux types de transport. Grâce aux mesures de vitesse des ondes P et S, on a pu déterminer les modules d'incompressibilité de la roche et des pores. Ce dernier est constant sur toute la gamme de porosité, indiquant que la cimentation ne modifie pas la nature des contacts entre les grains. La fraction de ciment effectif, déterminée à partir des vitesses, est bien corrélée à la porosité, à la perméabilité et au facteur de formation. A partir de mesures en laboratoire de certaines propriétés physiques (densité, porosité, vitesse des ondes P et S conductivité thermique, facteur formation et susceptibilité magnétique), sur un échantillonnage représentatif des principales lithologies présentes dans la croûte terrestre, et en utilisant différentes méthodes de discrimination (analyse d'agglomération, classification suivant un modèle gaussien et analyse discriminant), nous avons déterminé, pour un contexte lithologique donné, quels sont les paramètres physiques qui permettent de discriminer au mieux la lithologie d'une formationThe studies of electrical , hydraulic properties of the Fontainebleau's sandstone (without clay) and the Sihapas's sandstone (with clay) show that permeability and formation factor are well correlated. On the presence of clay, the hydroelectric parameter's (permeability and formation factor) are always well proportioned, but the hydraulic parameters (permeability and porosity) are indented. The size of grains that control the relation of hydroelectric parameters. In the Fontainebleau sanddstone, grain size increase in reduced porosities, by cementing in silica, in turn permeability decrease and formation factor increase. The reduction of porosity conducts a porosity threshold for hydraulic and electric transports. The hydroelectric porosity threshold obtained is 0. 019. In favour of compression velocity, the compression modulus of pores and the volume fraction of effective cement can be determined. In the observed porosity range, the compression modulus of pores is constant which indicates that the nature of contacts between grains is not modified by cementation. The volume fraction of cement effective is well correlated with porosity, permeability and formation factor. We measured certain physical parameters (density, porosity, elastic wave velocities, thermal conductivity, formation factor and magnetic susceptibility), in laboratory conditions, on rock samples representative of crust lithology. By using the method of statistic (clustering analysis, gaussian classification and discriminate analysis), within a lithological context given, we can determine discriminate hierarchy of the parameters in order to distinguish well the lithotypes in a geological formation
23
Chapuis, Bruno. "Etude epidemiologique des tentatives de suicide hospitalisees au c. A. P. De rennes en 1989." Rennes 1, 1992. http://www.theses.fr/1992REN1M009.
24
RINALDI, Roberto. "City centre management : uno strumento per la rivitalizzazione del commercio urbano." Doctoral thesis, Università degli studi di Bergamo, 2008. http://hdl.handle.net/10446/44.
25
Merzari, Elisa <1987>. "Il controllo di gestione in ambito museale : studio di un caso: il Centre Georges Pompidou." Master's Degree Thesis, Università Ca' Foscari Venezia, 2012. http://hdl.handle.net/10579/1968.
Abstract:
Il lavoro affronta la questione del controllo di gestione delle organizzazioni culturali complesse, studiando in particolare l'esperienza e le pratiche del Centre Georges Pompidou di Parigi. La ricerca cerca inoltre di chiarire la natura e l'efficacia del tableau de bord francese, modello che tende a contrapporsi e distinguersi dal più comune modello americano (BSC).
26
Langer, Jan. "ResPublica/Civitas Socialis – Strachotín, l. p. 2017." Master's thesis, Vysoké učení technické v Brně. Fakulta architektury, 2017. http://www.nusl.cz/ntk/nusl-316329.
Abstract:
The history of Strachotín, as we know it today, started yet before the year of 1300. Its urbanist structure remained relatively the same untill the 2nd third of the 18th century, nor did the number of houses change. The structure of the main square has been conserved in its original form. The important solitary buildings standing in the centre of the main square were the buildings of the Municipal House and the former School, the social services house nowadays (library, physician, hairstylist, post office). By gradually adding technical facilities and warehouses that have grown into an extended construction with residential units and a pub, all of them carried out on top of the original Municipal House, the result is a „cluster“ of virtually zero architectural and urbanist qualities. The consequential effect brings diminishing of the significance of the town centre as a common place – res publica. The main square ought to be understood as a central point of the town, a meeting point, a place for reunions. A place of information exchange, sharing and confrontation of various opinions. My objective has been to keep the current range of services offered and bring back the town´s lost identity and symbolics. Buildings constructed at the centre of the main square often carry a solitary character and Strachotín is therefore no exception. I consider this aspect as an essential one. The key feature has been splitting the functions and a convenient interconnectedness of the businesses within. The need for a new hall and a space for the community life has been put to life in the form of a building added to the former school, where now you can find an open complex of a community house, including an information centre, library, a club-room and services, such as the hairdressers´ and the physician´s office. I regard connecting the municipal hall and the pub together as the most convenient/ effective solution within the Municipal House. I have marked three functional areas within the public space of the main square by respecting the two current solitary buildings. The centre is represented by the „piazzetta“ - the paved area, I have conserved the park-like feature of the southern part with its grassy area, and for the northern part, I have proposed a orchard layout of the area including a childrens´ playground.
27
LEBOUTET, AGNES. "C. A. M. P. S. De l' ariege : approche evaluative de 6 ans de fonctionnement." Toulouse 3, 1988. http://www.theses.fr/1988TOU31139.
28
LUQUET, NATHALIE. "L'evolution du c. A. M. S. P. De cannes de 1990 a 1992." Nice, 1994. http://www.theses.fr/1994NICE6502.
29
Shagmani, Abulgasem Muftah. "The structure of Libyan Arabic discourse as depicted in two Arabic interviews recorded by the Libyan Jiha'd Studies Centre in Tripoli." Thesis, University of Glasgow, 2002. http://theses.gla.ac.uk/1588/.
Abstract:
This thesis attempts to investigate the structure of Libyan Arabic discourse in general and interviews as a text-genre text-form in particular. This investigation includes conjunctions and their influence on the cohesion of interviews and certain other textual phenomena, i.e. repetition, parallelism and their unequivocal significance in text cohesion. To this effect, random samples were taken from two Libyan Arabic interviews, i.e. sample text 1 and sample text 2 to who how the structure of these texts is made up. To achieve these objectives, this study uses a semantic, structural and pragma-semio-textual approach to analyse and then translate the texts chosen, as language in this study is considered to be a form of behaviour (Halliday 1973) that cannot be studied in isolation from its social, cultural and contextual contexts in which it is used. Our textual analysis has shown interesting results. First, interviews have their own generic structure and such structure is presented in specific stages. Second, interviews favour the cohesive type of lexical repetition not only for cohesion purposes but also for persuasive functions as well. Third, interviews use many parallel constructions for conviction and persuasive functions.
30
Kocchiu, Yi Esperanza Daysi. "lnterculturalidad. Un desafío. Lima: Centro Amazónico de Antropología y Aplicación Práctica, 1992; 59 p." Pontificia Universidad Católica del Perú, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/117731.
Abstract:
Es en los últimos años que se ha planteado desde distintos sectores y especialidades a la INTERCULTURALIDAD como alternativa y desafío, es decir como dimensión a construir en el tejido de las relaciones humanas. En dicho sentido es que el trabajo titulado"INTERCULTURALIDAD. UN DESAFIO" realizado por un equipo interdisciplinar del Centro Amazónico de Antropología y Aplicación Práctica, formado por tres profesionales de las especialidades de Educación, Filosofía y Derecho, significa un valiosísimo esfuerzo por contribuir desde sus respectivas disciplinas tanto al análisis y esclarecimiento de dicho desafío, como a abrir un diálogo fructífero en tomo a tal reto.
31
Rautio, R.-P. (Riku-Petteri). "Effects of galaxy interactions on their central B/P/X/bl structures." Master's thesis, University of Oulu, 2019. http://jultika.oulu.fi/Record/nbnfioulu-201903191344.
Abstract:
Abstract. I study the relation of galaxy interactions and their central B/P/X/bl structures. I use a sample of 1413 galaxies from Stripe 82 region chosen by their angular diameter. I create "postage stamp" images in i-band, multi-band and unsharp masked i-band for the identification of the different interaction types and central structures. I use my own observations as well as catalog data to find any significant relations between different parameters. I find 217 X-shapes and 49 barlenses. This is small amount of barlenses compared to previous studies. I suspect that the deficiency in barlenses is caused by a lack of depth and resolution. The most statistically significant difference between the interacting and non-interacting galaxies is that in Milky Way luminosity and brighter high-inclination galaxies there is X-shapes in half of the non-interacting galaxies, while among interacting galaxies there is X-shapes only in fifth of the bright, high-inclination galaxies.
32
Beachly, Matthew William 1986. "The Upper Crustal P-wave Velocity Structure of Newberry Volcano, Central Oregon." Thesis, University of Oregon, 2011. http://hdl.handle.net/1794/11475.
Abstract:
xii, 98 p. : ill. (some col.)The upper-crustal seismic-velocity structure of Newberry volcano, central Oregon, is imaged using P-wave travel time tomography. The inversion combines a densely-spaced seismic line collected in 2008 with two USGS seismic experiments from the 1980s. A high-velocity ring (7 km EW by 5 km NS) beneath the inner caldera faults suggests an intrusive ring complex 200 to 500 m thick. Within this ring shallow low velocities (<2 km depth) are interpreted as caldera fill and a subsided block. High velocities below 2 km depth could be intrusive complexes. There appears to be a low-velocity body at 3-6 km depth beneath the center of the volcano. This region is poorly resolved in the inversion because the ray paths bend around the low-velocity body. The 2008 data also recorded a secondary arrival that may be a delayed P-wave interacting with the low-velocity body.
Committee in charge: Emilie E.E. Hooft, Chairperson; Douglas R. Toomey, Member; Katharine V. Cashman, Member
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Nemer, Sérgio Nogueira. "Avaliação da força muscular inspiratória (Pi Max), da atividade do centro respiratório (P 0.1) e da relação da atividade do centro respiratório/força muscular inspiratória (P 0.1 / Pi Max) sobre o desmame da ventilação mecânica." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/5/5150/tde-02082007-104326/.
Abstract:
Introdução: a hipótese deste estudo é de que a Pressão inspiratória máxima, Pressão de oclusão traqueal e sua razão podem predizer a evolução do desmame da ventilação mecânica em uma população mista de Terapia Intensiva. Métodos: A Pi Max , P 0.1 e a razão P 0.1 / Pi Max foram mensuradas em setenta pacientes consecutivos , intubados ou traqueostomizados, e ventilados mecanicamente, que preencheram os critérios para desmame da ventilação mecânica. Após a mensuração da Pi Max, P 0.1 e ainda da freqüência respiratória e volume corrente em litros com o cálculo da relação FR/VC e do produto P 0.1 x FR/VC, os pacientes foram submetidos a um teste de respiração espontânea. Os pacientes que toleraram o teste de respiração espontânea e não precisaram retornar para a ventilação mecânica no período de 24 horas foram considerados desmamados. A sensibilidade, especificidade, valor preditivo positivo, valor preditivo negativo, diagnóstico de acurácia e a área sob a curva ROC (receiver operating characteristic curve) foram calculadas. Resultados: Os valores médios da P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC e P 0.1 x FR /VC foram de 2,49±1,2, -34,6±13, 0,07±0,01, 75,4±33 e 184,6±123 respectivamente para os pacientes desmamados e 4,36± 2,0, -32,1±11,0 , 0,15± 0,09, 148,4± 42 e 652,9± 358 para os não desmamados da ventilação mecânica. Todos os índices distinguiram entre os pacientes desmamados e não desmamados, à exceção da Pi Max. A sensibilidade para a P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC e P 0.1 x FR /VC foi de 78,85, 65,38, 80,77, 82,69, 88,46 respectivamente. A especificidade para a P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC e P 0.1 x FR /VC foi de 72,2, 38,8, 72,2, 83,3, 72,2 respectivamente. Os valores preditivos positivos para a P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC e P 0.1 x FR /VC foram respectivamente 89,1, 75,5, 89,3, 93,4 e 90,2. Os valores preditivos negativos para a P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC e P 0.1 x FR /VC foram respectivamente de 54,1, 28,0, 56,5, 62,5 e 68,4. O diagnóstico de acurácia para a P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC e P 0.1 x FR /VC foi respectivamente de 77,1, 58,5, 78,5, 82,8 e 84,2. As áreas abaixo da curva ROC para a P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC e P 0.1 x FR /VC foram respectivamente 0,76± 0,06, 0,52±0,08 , 0,78±0,06, 0,90±0,04 e 0,84±0,05. A comparação da áreas abaixo da curva ROC mostrou que os melhores índices foram a relação FR/VC, o produto P 0.1 x FR/VC e a relação P 0.1 / Pi Max não havendo diferença estatística entre eles. A pior área abaixo da curva ROC foi do índice Pi Max. Os índices de desmame da ventilação mecânica P 0.1, Pi Max e P 0.1/ Pi Max não foram diferentes estatisticamente entre os pacientes intubados e traqueostomizados. Conclusão: os melhores índices foram a relação FR/VC, o produto P 0.1 x FR/VC e a relação P 0.1 / Pi Max não havendo diferença estatística entre eles.Introduction: We hypothesized that maximal inspiratory pressure (Pi Max), airway tracheal occlusion pressure (P 0.1) and its ratio (P 0.1/Pi Max) can be used to predict weaning outcome in a mixed ICU mechanically ventilated patients. Methods: Pi Max, P 0.1 and P 0.1 / Pi Max ratio were measured in seventy consecutive intubated or tracheostomized, mechanically ventilated patients, who fulfilled weaning criteria. After these measurements of Pi Max, P0.1, respiratory rate and expiratory tidal volume (L) with the calculation of f / Vt ratio and the product P0.1x f / Vt , the patients were submitted to a spontaneous breathing trial (SBT) . Those who were able to sustain the SBT and had no need to return to mechanical ventilation in the following 24 hours were considered weaned. The sensitivity, specificity, positive predictive value, negative predictive value, diagnostic accuracy and Receiver- operating-characteristics (ROC) curves for this population were calculated. Results: The mean value of P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC e P 0.1 x FR /VC were 2,49 ±1,2, -34,6± 13, 0,07± 0,01, 75,4±33 and 184,6±123 respectively for the weaned patients and 4,36± 2,0, -32,1±11,0 , 0,15± 0,09, 148,4± 42 e 652,9± 358 for the not weaned patients. All the indexes distinguished between the weaned and not weaned patient, except for the Pi Max. The sensitivity for the P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC and P 0.1 x FR /VC were respectively 78,85, 65,38, 80,77, 82,69, 88,46. The specificity for P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC and P 0.1 x FR /VC were 72,2, 38,8, 72,2, 83,3, 72,2 respectively. The positive predictive value for P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC and P 0.1 x FR /VC were respectively 89,1, 75,5, 89,3, 93,4 e 90,2. The negative predictive value for P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC and P 0.1 x FR /VC were respectively 54,1, 28,0, 56,5, 62,5 e 68,4. The diagnostic accuracy for P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC and P 0.1 x FR /VC were respectively 77,1, 58,5, 78,5, 82,8 e 84,2. The area under the ROC curves for P 0.1 , Pi Max, P 0.1 / Pi Max, FR / VC and P 0.1 x FR /VC were respectively 0,76± 0,06, 0,52±0,08 , 0,78±0,06, 0,90±0,04 e 0,84±0,05. The comparison among the areas under the ROC curves showed that the best weaning indexes were f / Vt ratio, the product P 0.1 x f / Vt and the P0.1/ Pi Max ratio with no statistic differences among them. The Pi Max presented the smaller area under the ROC curve. The weaning indexes P 0.1, Pi Max e P 0.1/ Pi Max were not statistically different between intubated or tracheostomized patients. Conclusion: The best weaning indexes were f/Vt ratio , the product P 0.1 x f/Vt and the P 0.1 / Pi Max ratio with no statistically difference among them.
34
Winslow, David M. "Fluid inclusions : evidence for a counterclockwise p-t trajectory in the Central Maine terrane of South-Central Massachusetts /." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-02132009-172529/.
35
Gutmann, Carolina Sumaquero. "O valor patrimonial dos espa?os p?blicos: estudo de caso do centro de Valinhos-SP." Pontif?cia Universidade Cat?lica de Campinas, 2011. http://tede.bibliotecadigital.puc-campinas.edu.br:8080/jspui/handle/tede/89.
Abstract:
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Previous issue date: 2011-02-25Pontif?cia Universidade Cat?lica de Campinas
The cities that comprise the Campinas Metropolitan Region have been suffering over the last decades from the process of regionalization and metropolization of activities, with impacts on its urban fabric structure and on the organization of its population. The urban segregation, the move towards the outskirts, the intense migratory flow and the physical conurbation among the towns, affect mainly the appropriation of their public spaces. Considering such transformations and the growing loss of the public way of living in the cities, as well as the urban and buildings patrimony, it is in the public spaces where the importance of the identity preservation and the social contacts are observed. The public spaces are also an essential element for the urban centers re-qualification, for they are being depleted from their civic and recreational functions, due to historical processes of real estate speculation and space segregation. Through research, surveys and comparative analyses of actual data about the Valinhos municipality s public spaces with patrimonial value, it is intended to investigate the main transformations and impacts that these spaces experienced with the continuous and disperse onward march of the urbanization process and the devaluation of the original urban fabric.
As cidades que comp?em a Regi?o Metropolitana de Campinas v?m sofrendo nas ?ltimas d?cadas com o processo de regionaliza??o e metropoliza??o das atividades, tendo conseq??ncias na estrutura??o de seu tecido urbano e na organiza??o de sua popula??o. A segrega??o urbana, a periferiza??o, o intenso fluxo migrat?rio e a conurba??o f?sica entre as cidades afetam principalmente a apropria??o de seus espa?os p?blicos. Tendo em conta tais transforma??es e a crescente perda nas cidades dos modos de vida p?blicos, assim como do patrim?nio urbano e edificado, v?-se nos espa?os p?blicos a import?ncia para manuten??o de uma identidade e de um conv?vio social, bem como elemento essencial na requalifica??o de centros urbanos, j? que vem se esvaziando de sua fun??o c?vica e recreativa devido a processos hist?ricos de especula??o imobili?ria e segrega??o espacial. Atrav?s de buscas, levantamentos e an?lises comparativas de dados concretos sobre os espa?os p?blicos de valor patrimonial do munic?pio de Valinhos, pretende-se investigar as principais transforma??es e impactos que estes espa?os sofreram com o avan?o do processo de urbaniza??o cont?nua e dispersa e a desvaloriza??o do tecido urbano original.
36
Santos, Ana Paula Anjos dos. "A qualidade nos serviços: caso do Instituto de Segurança Social, I. P. - Centro Ditrital de Aveiro." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/14503.
Abstract:
Mestrado em Contabilidade e Administração PúblicaOs cidadãos, atualmente, exigem uma crescente qualidade nos serviços públicos prestados, nomeadamente ao nível da eficácia, eficiência e celeridade, levando por sua vez a que a Administração Pública melhore cada vez mais o seu desempenho e implemente técnicas e mecanismos de qualidade nos serviços. Neste trabalho, após uma revisão da literatura, pretende-se verificar quais os métodos e técnicas mais utilizadas para medir a qualidade nos serviços. Este estudo centra-se no Atendimento ao Público do Instituto de Segurança Social, I.P. - Centro Distrital de Aveiro (ISSCDA), pelo que serão elaborados questionários de forma a verificar qualidade dos serviços prestados ao cliente.
Citizens currently demand increasing quality in public services, particularly at the level of effectiveness, efficiency and speed, which drives the Public Administration to increasingly improve its performance and implement techniques and mechanisms for service quality. In this thesis, after a literature review, we intend to identify the most common methods and techniques used to measure the service’s quality. This study focuses on the Public Service, at the Instituto de Segurança Social, I.P. - Centro Distrital de Aveiro (ISSCDA) and enquires will be used to verify the quality of the services provided to the client.
37
Sallese, Jean-Michel. "Etude des centres dx dans les alliages (al,ga)as, ga(as,p) et (al,ga) (as,p) sous pression hydrostatique et sous champ magnetique intense." Nice, 1991. http://www.theses.fr/1991NICE4481.
Abstract:
Nous etudions les proprietes physiques des centres dx dans les alliages (al,ga)as et ga(as,p) elabores par epvom, en fonction de la pression hydrostatique et sous champ magnetique intense (effet shubnikov de hass). Apres une etude des conditions d'elaboration, nous analyserons l'influence de la nature chimique du dopant (si, t, sn et pb) sur l'energie d'ionisation des centrs dx. Parmi les resultats obtenus, le centre dx associe au tellure dans gaas est un element essentiel, a l'origine meme de la demarche adoptee tout au long de cette etude. L'energie d'ionisation tres elevee des centres dx introduit par le tellure dans gaas et dans ga(as,p) est mise a profit dans le concept du double dopage, qui devrait permettre, en principe, de verifier la validite du modele de chadi qui soutient que le centre dx implique la capture de deux electrons. Par ailleurs, l'etude des alliages (al,ga)as et ga(as,p) revele que la presence d'aluminium est responsable de l'approfondissement du centre dx associe au tellure. Finalement, les mesures de duree de vie enregistrees dans gaas sous pression hydrostatique, montrent que le centre dx se comporte comme un centre de recombinaison non radiatif pour les trous. Notre etude soutient donc que le centre dx est un etat tres localise, sensible a la nature chimique de l'impurete ainsi qu'a celle des premiers voisins
38
Lê, Khanh-Tuoc. "Functional and biochemical characterization of central ATP-gated P¦2[subscript]x channels." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0020/NQ55353.pdf.
39
Sofer, Adriana S. "p-ADIC interpolation of square roots of central values of Hecke L-series /." The Ohio State University, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487842372894507.
40
Rocha, Marcelo Peres. ""Ampliação da tomografia sísmica do manto superior no sudeste e centro-oeste do Brasil com ondas P"." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/14/14132/tde-21102003-141908/.
Abstract:
Variações dos tempos de percurso de fases P e PKP foram usados para tomografia sísmica do manto superior sob o sudeste e centro-oeste do Brasil. Os principais objetivos foram: Melhorar a resolução obtida pelos estudos anteriores (VanDecar et al,. 1995; Escalante, 2002; Schimmel et al., 2003, feitos de 1992 a 2001) com a inclusão de novos dados e estações, mapear as áreas que não tinham sido cobertas pelas estações anteriores, tentar mostrar a consistência da base de dados, principalmente relacionada às novas estações e verificar a robustez das anomalias encontradas. Foi estudada a influência das estações localizadas nas regiões anômalas através de inversões secundárias (retirando estações). Nesta base foram incluídos registros recentes do ano 2002 e também em registros de 2000 e 2001 para eventos utilizados nos trabalhos anteriores. Os resultados confirmaram as estruturas observadas nos trabalhos anteriores e também revelaram novas regiões anômalas, particularmente no sul do estado de Mato Grosso. Das anomalias observadas nos trabalhos anteriores, confirmamos em nossos resultados o Cráton do São Francisco como uma anomalia de alta velocidade, com suas raízes chegando a 250 km de profundidade, a anomalia de baixa velocidade interpretada como resto fóssil da pluma de Tristan da Cunha VanDecar et al. (1995), a boa correlação das anomalias rasas de baixa velocidade com as intrusões alcalinas do Cretáceo Superior Schimmel et al., (2003), a anomalia de baixa velocidade inferida por Escalante (2002) na região de Iporá em Goiás (possível região do impacto inicial da pluma de Trindade), uma anomalia de alta velocidade sob a região da Bacia do Paraná (profundidades rasas) interpretada inicialmente por Schimmel et al. (2003) como possível núcleo cratônico da Bacia do Paraná e também, nesta mesma região (maiores profundidades), uma anomalia de alta velocidade interpretada como a litosfera subduzida da Placa de Nazca (Schimmel et al., 2003 e Escalante, 2002). A nova base permitiu a expansão da área de estudo e o imageamento de anomalias de baixa velocidade na província ígnea de Poxoréu em Mato Grosso, as quais são consistentes com o afinamento litosferico proposto no modelo de Thompson et al. (1998).Variations of P and PKP travel times were used for seismic tomography of the upper mantle beneath southeast and central Brazil. Our principal objectives were: To improve the resolution obtained by the previous studies (carried out by VanDecar et al., 1995; Escalante, 2002; Schimmel et al., 2003 between 1992 and 2001) with inclusion of new data and stations, to map areas not covered by previous stations, to show the consistency of the database, mainly of the related to the new stations and to verify the robustness of the detected anomalies. The influence of the stations located in the anomalous areas was studied through secondary inversions (removing stations). The new data set includes recent records of 2002 and also new records from 2000 and 2001 for events used in the previous works. Our results confirm the structures observed in the previous works and also revealed new anomalous regions, particularly in the south of the Mato Grosso state. We confirmed the anomalies observed in the previous works: The São Francisco cráton has as a high-velocity anomaly, with roots down to 250 km depth, the low velocity anomaly interpreted as a fossil remnant of the Tristão da Cunha plume (VanDecar et al. 1995), the good correlation of the shallow low velocity anomalies with the alkaline intrusions of the Late-Cretaceous (Schimmel et al. 2003), the low velocity anomaly inferred by Escalante (2002) in the Iporá igneous province in Goiás (possible area of the initial impact of the plume of Trindade), a high-velocity anomaly under the Paraná Basin (shallow depths) interpreted initially by Schimmel et al. (2003) as possible cratonic nucleus of the Paraná Basin and also, in this same area (larger depths), a high-velocity anomaly interpreted as the slab of the Nazca Plate (Schimmel et al., 2003 and Escalante, 2002). The new data set allowed the expansion of the study area and the imaging of low velocity anomalies in the igneous province of Poxoréu in Mato Grosso, which are consistent with the model of litospheric thinning proposed by Thompson et al. (1998).
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Abreu, Carina Vasconcellos. "Educa??o e o turista cidad?o: Viva o Centro a P? (Porto Alegre/RS 2006-2011)." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2011. http://tede2.pucrs.br/tede2/handle/tede/3719.
Abstract:
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Previous issue date: 2011-12-16This research aims to analyse Viva o Centro A P? (Live Downtown on Foot), an action that has been offered by the Porto Alegre City Hall in the period from 2006 to 2011, starting from the concepts of citizen tourist and educating city. Viva o Centro a P? actions consist of itineraries on foot guided by professors within the city‟s Historical Downtown and in other ancient headquarters. These actions are offered for free to community members and tourists, and have already served approximately 13,000 participations. The first chapter relates theoretical references about Collective Memory, and Sites of Memory, Educating City, Citizen Tourist, and Heritage Interpretation, and also presents examples of other actions that are similar to the one studied here. The second chapter summarizes the history of Porto Alegre City and its way towards heritage preservation, which is precisely the context in which the action comes about. It also analyses the history of the action itself, its organizers, itineraries, professors, and participants. The third chapter presents gathering and analysis of data about the profile of participants taking part in the walk, their motivation to do so, and their opinions about what the action means to them and how they evaluate it. In this analysis, both presence and virtual research was performed through a questionnaire specially developed for this purpose, which obtained 108 answers. 125 messages spontaneously sent to the action coordination were also analysed. The discourse analysis presented by Moraes (2007) was used for this purpose. The conclusions of this study are that the activity can support citizen tourist formation, thus raising the value of city‟s sites of memory from the educating process of the action. Besides, in order to keep participant satisfaction high, just as it has been registered so far, it will be necessary to diversify itineraries and guides. Also, an increased offer of monthly walks, together with better advertising means, can spread and diversify participants.
O objetivo geral desta pesquisa ? analisar a a??o Viva o Centro a P?, promovida pela Prefeitura Municipal de Porto Alegre, no per?odo de 2006 a 2011, a partir dos conceitos de turista cidad?o e cidade educadora. A a??o consiste em caminhadas orientadas por professores universit?rios, em roteiros no Centro Hist?rico e outros bairros antigos, oferecidas de forma gratuita ? comunidade e turistas, e que j? somam aproximadamente 13.000 participa??es. O estudo traz a interlocu??o entre os referenciais te?ricos de Mem?ria Coletiva e Lugares de Mem?ria, Cidade Educadora, Turista Cidad?o e Interpreta??o do Patrim?nio, al?m de apresentar exemplos de a??es similares ? a??o objeto de estudo. Em seguida tra?a um breve hist?rico da cidade de Porto Alegre e sua trajet?ria em rela??o a preserva??o do patrim?nio, contexto em que surge a a??o, analisando o hist?rico da a??o em si, seus organizadores, roteiros, professores e participantes. Por ?ltimo, apresenta os dados coletados e analisados quanto ao perfil do participante das caminhadas, sua motiva??o em realiz?-las, e o que expressam em rela??o ao significado que conferem a a??o e como a avaliam. Para esta an?lise foi utilizada pesquisa presencial e virtual a partir de formul?rio pr?prio, totalizando 108 question?rios, al?m do acervo de 125 mensagens espont?neas enviadas a coordena??o da a??o. Para isso foi utilizada a metodologia de an?lise textual discursiva proposta por Moraes (2007). O estudo conclui que: a atividade pode fomentar a forma??o de turistas cidad?os, valorizando os lugares de mem?ria da cidade, a partir de seu processo educativo; para manter o alto n?vel de satisfa??o dos participantes registrado at? agora ser? necess?rio diversificar roteiros e orientadores; e que o aumento da oferta mensal de caminhadas, aliada a melhoria das formas de divulga??o, pode ampliar e variar o p?blico participante.
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Kocchiu, Yi Esperanza Daysi. "El Quechua en Debate. Cuzco: Centro de Estudios Regionales Andinos "Bartolomé de Las Casas", Abril1992; 306 p." Pontificia Universidad Católica del Perú, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/117827.
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Moreau, Michel. "Polymerisation cationique du p-methoxystyrene et de certains derives substitues : etude de la nature des centres actifs." Paris 6, 1988. http://www.theses.fr/1988PA066425.
Abstract:
Dans le cas du methoxy-4 phenyl-2 propene (mnos), identification par rmn des cations monomere, dimere, et trimere isomerise et determination par spectrometrie d'absorption electronique de leur coefficient d'extinction molaireet du contre-ion associe. Etude de la cinetique de polymerisation du mnos et du mos par calorimetrie adiabatique et spectrophotometrie. Etude de la polymodalite du poly(p-methoxy styrene) par grc en fonction du degre de conversion du monomere
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Moreau, Michel. "Polymérisation cationique du p-méthoxystyrène et de certains dérivés substitués étude de la nature des centres actifs /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376166371.
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Lundin, Linnéa. "Interpretation of the P-T-XCO2 environment during metamorphism of carbonates, central Utö, Stockholm archipelago." Thesis, Stockholms universitet, Institutionen för geologiska vetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-93279.
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This thesis attempts to interpret the metamorphic condition and fluid composition experienced by metacarbonates on Utö, located in the south-eastern parts of the Stockholm archipelago. Utö is a part of the Svecofennian domain, and the area Bergslagen, that has hosted several mines over the last millennia. The bedrock in this area has been dated by the U-Pb technique to 1.90-1.87 Ga, placing it in the Paleoproterozoic era (Allen et al. 1996, Lundström et al. 1998). The rocks, of the studied area on the island of Utö, are mainly metacarbonates with a varying purity and thin layers of volcanic ash. These rocks become more felsic towards the north-western coast as the layers of felsic ash become more dominant. To determine the P-T-XCO2 of metamorphism, metacarbonates were examined, in the field, in thin sections and mineral chemistry was determined by SEM analysis. Three samples were collected along a 1km transect, along which the assemblage calcite + dolomite + quartz + tremolite + diopside was observed. Petrographic and SEM analysis were performed to gather chemical data from coexisting calcite and dolomite in order to calculate temperature using the calcite-dolomite geothermometer. Chemical data from the SEM analysis were also run with AX and THERMOCALC together with pressure data received from a study by Engström (2011) of the adjacent island, Persholmen, to generate a T- XCO2 diagram. Pressure was estimated to 3.1 +/- 1.3 kbars, temperature calculated to 442°C 30°C and XCO2 to range from 0,00067-0,0038 with the standard deviation taken in to account. These results record equilibration with a CO2-bearing hydrous fluid at greenschist facies conditions.Metamorphic map of Sweden
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Silva, Patrícia Sardão da. "Aplicação dos conceitos de P+L e lean and green numa central dosadora de concreto." Universidade do Vale do Rio dos Sinos, 2014. http://www.repositorio.jesuita.org.br/handle/UNISINOS/4373.
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FAPERGS - Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul
Nos últimos anos, a geração de resíduos oriundos das atividades da construção civil tem crescido em grandes proporções e, com ela, o consumo de recursos naturais. A complexidade ambiental é causada pela extração e utilização desses recursos comprometendo os ecossistemas. O processo de gestão ambiental, inserido dentro do setor da construção civil, visa primeiramente à redução dos impactos ambientais e posteriormente contribui para o controle sistemático do consumo de insumos e matérias primas utilizadas no processo de produção; com possíveis ganhos na redução dos impactos ambientais negativos e na geração de resíduos, principalmente com uma menor disposição final destes resíduos no meio ambiente. Este estudo objetiva desenvolver e aplicar os conceitos da Produção Mais Limpa e da filosofia Lean and Green em uma Central Dosadora de Concreto, com a finalidade de avaliar ambientalmente o processo de produção de concreto. O estudo de caso foi desenvolvido com base na análise e interpretação do diagnóstico ambiental juntamente com a revisão dos registros documentais, fotográficos e visitas periódicas em uma Central Dosadora de Concreto localizada em um município do extremo sul do Estado do Rio Grande do Sul. Primeiramente, foi realizado um diagnóstico ambiental para avaliar a situação atual da empresa. Posteriormente foram coletados dados quali-quantitativos para elaboração dos indicadores ambientais e, por último, foram analisados os resultados levantados. Diante da análise da abordagem dos conceitos de Produção Mais Limpa e da filosofia Lean and Green foi possível alinhar e avaliar a central dosadora de concreto. No período de estudo foi possível identificar que sem a devida orientação e capacitação ambiental aplicada a todos os colaboradores envolvidos, não é possível desenvolver uma melhoria contínua de seus processos com redução dos impactos ambientais desta atividade. Dentre os fatores observados e avaliados positivamente foi a capacidade e empenho do ecotime ao longo da pesquisa, mesmo não tendo identificado a consciência e conscientização dos gestores, mas houve o interesse pelo assunto e pequena mudança de postura. Deste modo, a partir dos conceitos é possível promover um método de avaliação ambiental e iniciar um banco de dados através da análise do fluxo de matérias-primas, sendo de maior relevância a possibilidade de mitigação dos impactos ambientais através da implantação da gestão dos resíduos da concreteira.
In recent years, the generation of waste from the construction activities has grown into large proportions, and with it, the consumption of natural resources. Environmental complexity is caused by the extraction and use of these resources compromising ecosystems. The process of environmental management, applied within the construction industry, primarily aimed at reducing environmental impacts and subsequently contributes to the systematic control of the consumption of inputs and raw materials used in the production process; with possible gains in reducing negative environmental impacts and waste generation, especially with a smaller final disposal of these wastes into the environment. This study aims to develop apply the concepts of Cleaner Production and Lean and Green philosophy in a Central Concrete Dosing, with the purpose of environmentally evaluate the process of concrete production. The case study was developed based on the analysis and interpretation of environmental assessment together with a review of the documentary, photographic periodic visits and records in a Central Concrete Dosing a municipality located in the southernmost state of Rio Grande do Sul. Firstly, one environmental assessment was conducted to assess the current situation. Later qualitative and quantitative data for the preparation of environmental indicators were collected and, finally, the results gathered were analyzed. Among the results, it was found that the specific approach the concepts of Cleaner Production and Lean and Green philosophy is suitable for you can evaluate the dosing concrete plants, as well as the possibilities for the reduction of environmental impacts should be evaluated the generation of the product. There must be a good level of environmental concern ally rational use of natural resources and especially the engagement of all stakeholders, so that the company can develop a pattern of continuous improvement with a focus on sustainability. During this research it was found that if the company uses the concepts of Cleaner Production and Lean and Green philosophy as environmental assessment method in its production process is environmentally possible to manage the company, as well as reduce the impact potential impacts promoted by production concrete. It is still possible to optimize the existing process with the allowance of environmental indicators and disseminate consumer or environmental agencies improvements of the environmental aspects of its products and processes, or even environmental qualities compare with other competitors. Thus, from these concepts is possible to promote a method of environmental assessment of all emissions, the flow of raw materials used, and in order to help better environmental management and reducing environmental impacts in Concrete Batching Plants.
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Schlickmann, ?ngela Flores. "Processamento auditivo central e caracteriza??o de aspectos cognitivos em mulheres p?s-menop?usicas." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2012. http://tede2.pucrs.br/tede2/handle/tede/2677.
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Previous issue date: 2012-03-20Introduction : The hormonal changes associated with menopause are able to modulate functions that are important for the central processing of verbal information.Objective : To evaluate the relationship between complaints of speech understanding and central auditory processing and cognitive function inpostmenopausal women.Methodology : The study included 92 postmenopausal women (45-60 years), which were classified into two groups according to presence or absence of complaints of difficulty understanding speech. All were right-handed, had normal hearing or mild sensorineural hearing loss and underwent bilateral hearing evaluation (otoscopy, impedance and ipsilateral and contralateral acoustic reflex, audiometry and speech audiometry), central auditory processing tests (dichotic consonant-vowel, Sequence Pattern frequency and Duration) and cognitive tests (Trail A and B, BDI, Procedure Brow Peterson, Stroop, divided and sustained attention).Results : 63% of women complained of speech understanding. The experimental groups showed no significant differences in demographic variables, hearing assessment or evidence of central auditory processing. However, women with complaints of speech understanding had poorer performance on tasks Trail B, Brown Peterson (interference motor), sustained attention (concentration) and Stroop(color-word), and higher scores on the BDI.Conclusions : Most women in post-menopausal women complain of speech understanding, which are associated with changes in cognitive domains potentially involved in central auditory processing, as processing speed, attention and working memory.
Introdu??o : As altera??es hormonais relacionadas ? menopausa s?o capazes de modular fun??es que s?o importantes para o processamento central de informa??es verbais.Objetivo : Avaliar a rela??o entre queixas de compreens?o de fala e o processamento auditivo central e fun??es cognitivas em mulheres p?s-menop?usicas.Metodologia : Participaram deste estudo 92 mulheres p?s-menop?usicas (45 a 60 anos), as quais foram classificadas em dois grupos de acordo com a presen?a ou aus?ncia de queixa de dificuldade de compreens?o da fala. Todas eram destras, tinham limiares auditivos normais ou leve perda neurossensorial e foram submetidas a avalia??o auditiva bilateral (meatoscopia, imitanciometria, audiometria tonal e logoaudiometria), testes de processamento auditivo central (Dic?ticos Consoante Vogal, Sequ?ncia de Padr?o de Frequ?ncia e de Dura??o) e testes cognitivos (Trail partes A e B, BDI, Procedimento de Brow Peterson, Stroop, Aten??o dividida e sustentada).Resultados : 63% das mulheres apresentaram queixa de compreens?o de fala. Os grupos experimentais n?o mostraram diferen?as significativas em rela??o ?s vari?veis demogr?ficas, avalia??o auditiva ou provas de processamento auditivo central. Entretanto, mulheres com queixa de compreens?o de fala apresentaram pior desempenho nas tarefas Trail B, Brow Peterson (interfer?ncia motora), Aten??o sustentada (concentra??o) e no Stroop (cor palavra), al?m de escores mais elevados no BDI.Conclus?es : Grande parte das mulheres na fase de p?s-menopausa apresenta queixas de compreens?o de fala, as quais est?o associadas a altera??es em dom?nios cognitivos potencialmente envolvidos no processamento auditivo central, como velocidade de processamento, aten??o e mem?ria operacional.
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Parra, Maza Raúl. "BERNEX DE FALEN, Nicole (ed.). Amanecer en el Bajo Huatanay. Cusco: Centro Guamán Poma de Ayala, 2004, 553 p." Pontificia Universidad Católica del Perú. Centro de Investigación en Geografía Aplicada, 2015. http://repositorio.pucp.edu.pe/index/handle/123456789/119309.
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Vaz, Rui Pedro Ferreira. "Controlo interno nos agrupamentos de centros de saúde da Administração Regional de Saúde do Centro, I. P.: estudo exploratório." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/14264.
Abstract:
Mestrado em Administração e Gestão PúblicaO trabalho apresentado aborda a temática do controlo interno das organizações, enquanto conjunto de políticas e boas práticas implementadas pela gestão, tendente à melhoria da eficiência na utilização dos recursos, salvaguarda dos ativos, fiabilidade no reporte financeiro e eficácia operacional. As Administrações Regionais de Saúde, I. P. (ARS), têm por missão garantir à população da respetiva área geográfica de intervenção o acesso à prestação de cuidados de saúde, adequando os recursos disponíveis às necessidades e cumprir e fazer cumprir políticas e programas de saúde na sua área de intervenção. Os Agrupamentos de Centros de Saúde (ACES) são serviços desconcentrados integrados na estrutura da respetiva ARS, estando sujeitos ao seu poder de direção. O objetivo do trabalho prendeu-se com o estudo exploratório de avaliação, no domínio técnico-administrativo, das práticas e metodologias de controlo interno implementadas nos ACES integrados na Administração Regional de Saúde do Centro, I. P., com vista tanto à identificação das vulnerabilidades observadas, como das características principais que deverá revestir um sistema ou conjunto de mecanismos de controlo interno a adaptar à realidade organizacional em análise. A análise empírica comparativa dos elementos recolhidos nos ACES permitiu assim destacar áreas de atividade e processos mais fragilizados em sede de controlo interno, os quais, pela sua relevância e transversalidade, devem ser particularmente considerados no futuro desenho de um sistema especificamente adequado ao enquadramento em apreço, integrando parâmetros teóricos constantes nos modelos internacionalmente reconhecidos.
The presented work addresses the issue of internal control in organizations as a set of policies and good practices implemented by management, aimed at improving efficiency in the use of resources, safeguarding of assets, reliability in financial reporting and operational efficiency. The Regional Health Authorities (ARS) are responsible for ensuring health care access to the population of the respective geographical scope, suiting the needs and resources available to comply with and enforce health policies and programs in their area of intervention. The Groupings of Health Centres (ACES) are decentralized services integrated in the structure of the respective ARS, and are subject to its power of direction. This work aims to perform an exploratory study in the administrative domain, evaluating internal control practices and methods implemented in the ACES of the Centre Regional Health Authority, identifying and describing vulnerabilities to take into account, when building a system or set of internal control mechanisms adapted to the organizational reality under study. A comparative empirical analysis of the evidence gathered highlighted weaker areas of activity and processes, which should be particularly considered in a future design of a system specifically suited to the environment in question, incorporating theoretical parameters from internationally recognized models.
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DOAZAN, JEAN-PHILIPPE. "Detection du potentiel arythmogene auriculaire de la cardiopathie hypertensive par l'electrocardiographie a haute amplification-moyennage centree sur l'onde p." Toulouse 3, 1991. http://www.theses.fr/1991TOU31579.