Ce travail de thèse s'inscrit dans le cadre des systèmes d'accès optiques haut débit où la bande passante de la fibre est partagée entre plusieurs utilisateurs. Principalement, nous considérons les sytèmes de comunication à accès multiple par répartition de codes optique (OCDMA: Optical Code Division Multiple Access). Cependant, ces systemes ont pour inconvénients d'être limitée en termes de capacité de multiplexage et de subir des interférences dues aux utilisateurs non désirés. Afin d'augmenter le nombre d'utilisateurs de ces systèmes, nous proposons deux architectures systèmes OCDMA. La première est une architecture système hybride WDM/OCDMA à encodage temporel integrant une source large bande découpée spectralment afin de multiplier le nombre d'utilisateurs multiplexés OCDMA par le nombre de canaux WDM générés. La seconde est une architecture système OCDMA à encodage spectral en phase qui permet d'implémenter des codes bipolaires. De même, nous avons réduit les interférences d'accès multiple (MAI : Multiple Access Interference) rencontrées dans ces systèmes OCDMA du fait des utilisateurs interférents, en utilisant un absorbant saturable après décodage des données de l'utilisateur désiré. Dans le cadre du projet ANR SUPERCODE, nous avons étudié la génération d'une source continuum optique et l'implémentation d'un absorbant saturable, basées sur l'exploitation d'effets d'optique non-linéaire dans des fibres spéciales ; conçu et implémenté des codeurs et décodeurs tout-optique via des réseaux de Bragg photo-inscrits dans des fibres optiques; puis réalisé l'intégration système des architectures proposées, ainsi que l'étude et l'evaluation des performances obtenues.

<p>The aim of this study has been to analyse metaphorical strings which have been interpreted literally, a process referred to as metaphor reversal. This was first described by Löflund (1999:18) and the specific term was later coined by Alm-Arvius (2006:6). Metaphor reversal is basically a subcategory of the broader term polysemy punning.</p><p>When a metaphor unexpectedly is interpreted literally, a humorous effect takes place and a pun is created. Especially if the metaphorisation in question has an entrenched figurative meaning, the unexpectedness of the literal interpretation is greater and the pun more obvious. The examples of these puns exploiting metaphor reversal have been taken from films featuring the verbal comedian Groucho Marx (GM), who frequently used this type and other kinds of puns in his films.</p><p>The terms internal and external metaphor, coined by Alm-Arvius (2003:78), have been used in order to distinguish between two different types of metaphorisations. Internal metaphor refers to metaphors with obvious internal collocational clashes and external metaphor refers to metaphors without such clashes, which can thus be given a literal as well as a figurative reading. However, this is not a clear-cut distinction and occasional overlapping between the two categories is common. Therefore, a continuum has been given which shows the overlapping category ‘more figurative external metaphors’. These are metaphors without collocational clashes, but with entrenched figurative meanings which make them metaphorical and not literal.</p><p>GM does not only revert external metaphors; he also reverts internal metaphors although this category contains collocational clashes which should make a literal interpretation impossible. Internal metaphor puns tend to be more absurd than external metaphor puns due to the collocational clashes which make the literal interpretation less probable. Reverted external metaphors are referred to as REM and reverted internal metaphors as RIM.</p><p>Most examples analysed are metaphorisations with idiom status with clearly preferred figurative meanings. Consequently, their figurative meanings are deeply entrenched and should not be altered. However, these figurative meanings are altered by GM in his punning; they are reverted and interpreted literally. This indicates that one of the few occasions when it is accepted or even possible to interpret a metaphorical idiom literally is in punning.</p>

<p>Purpose – The growing importance of use of Internet banking as another service delivery channel by banks to their customers lead to a number of supposition and deductions been made on the value creation of Internet banking and its extent of use. In the light of this, a profound and comprehensive study was conducted with the aim to first, determine the extent of use of Internet banking in Sweden, second, to validate the conjecture and the anecdote inferences that Internet banking provides values to both the bank and its customers.</p><p>Design/Methodology/approach - To test the validity of the conjecture and the anecdote inferences made over the years, the author use data collected in two folds. One set was collected from financial institution “the big four banks” and the other set from 60 bank customers out of the 90 questionnaires administered.</p><p>Findings - The results provide first, evidence of the high rate of adoption of Internet banking in Sweden, second, the values the banks and its customers have enjoyed since the advent of Internet banking.</p><p>Research limitations/implications - Although this exploratory study approach may have validated the proposed model, further research into other cities is required to generalize these findings as this study has the limitation of using only Stockholm and the number of respondents used.</p><p>Originality/value - The findings contribute and support several other studies that pointed to the fact that use of Internet banking channel of delivery is on the increase, and its value creation far exceed all other service delivery channels; provide critical implications for managers of financial institutions, Internet service providing firms, government and highlight directions for future research.</p><p>Keywords Internet banking, Online banking, Service delivery channels, Technology-based, Enabled-service, Product-service Continuum</p>

<p>We investigate the clustering of HI-selected galaxies in the ALFALFA survey and compare results with those obtained for HIPASS. Measurements of the angular correlation function and the inferred 3D-clustering are compared with results from direct spatial-correlation measurements. We are able to measure clustering on smaller angular scales and for galaxies with lower HI masses than was previously possible. We calculate the expected clustering of dark matter using the redshift distributions of HIPASS and ALFALFA and show that the ALFALFA sample is somewhat more anti-biased with respect to dark matter than the HIPASS sample. We are able to conform the validity of the dark matter correlation predictions by performing simulations of the non-linear structure formation. Further we examine how the bias evolves with redshift for radio galaxies detected in the the first survey.</p>

Purpose – The growing importance of use of Internet banking as another service delivery channel by banks to their customers lead to a number of supposition and deductions been made on the value creation of Internet banking and its extent of use. In the light of this, a profound and comprehensive study was conducted with the aim to first, determine the extent of use of Internet banking in Sweden, second, to validate the conjecture and the anecdote inferences that Internet banking provides values to both the bank and its customers. Design/Methodology/approach - To test the validity of the conjecture and the anecdote inferences made over the years, the author use data collected in two folds. One set was collected from financial institution “the big four banks” and the other set from 60 bank customers out of the 90 questionnaires administered. Findings - The results provide first, evidence of the high rate of adoption of Internet banking in Sweden, second, the values the banks and its customers have enjoyed since the advent of Internet banking. Research limitations/implications - Although this exploratory study approach may have validated the proposed model, further research into other cities is required to generalize these findings as this study has the limitation of using only Stockholm and the number of respondents used. Originality/value - The findings contribute and support several other studies that pointed to the fact that use of Internet banking channel of delivery is on the increase, and its value creation far exceed all other service delivery channels; provide critical implications for managers of financial institutions, Internet service providing firms, government and highlight directions for future research. Keywords Internet banking, Online banking, Service delivery channels, Technology-based, Enabled-service, Product-service Continuum

<p>Research shows that there is a literacy crisis in many South African primary schools, especially in the Foundation and Intermediate Phases (Grades 1 &ndash / &nbsp / ). The latest Annual National Assessments (ANA) results released in 2011 indicate that learners performed below the acceptable literacy levels as&nbsp / the national pass rate for Grade 3 learners was 35% and was 28% for Grade 6 learners (ANA, 2011:6). Research on literacy focuses on reading and&nbsp / there is little known about how young learners develop writing skills. This qualitative ethnographic study investigated how writing skills are developed in Grade 1 learners by looking at the writing processes as well as the teaching methods used by teachers to develop learners&rsquo / writing skills. The research also&nbsp / analyzed the texts produced by Grade 1 learners and the languages used in their written texts. The sample group in this research was the Grade 1 learners&nbsp / to a multicultural school in Cape Town. Data were collected by means of classroom observations, interviews and document analysis. The thematic&nbsp / arrative approach was used to analyze data and the analysis was informed by the Writing Developmental Continuum model and the Multimodal&nbsp / Approach to literacy in order to gain a better understanding of how young learners use language and other forms of writing such as visuals and gestures to&nbsp / onstruct and convey meaning.&nbsp / The findings of this research show that Grade 1 learners make use of semiotic resources including the language(s)&nbsp / &nbsp / &nbsp / available in their immediate context to create multimodal texts that incorporate both visual and written features. This shows that young learners represent&nbsp / their world experiences through interpersonal and experiential meanings in language(s) exposed to them. The teacher has a big role to play in developing&nbsp / learners&rsquo / writing skills and has to employ a variety of pedagogical strategies that support learners to move through the different writing phases before they develop into early writers. The study concludes that writing is not a linear process but it is a gradual process which depends on a variety of resources and&nbsp / factors which build on learners&rsquo / prior experiences and creativity.</p>

The discipline of marketing is evolving from a product centric paradigm where all value is invested in the product by the supplier and it is exchanged for a market determined price by means of an arm’s length transaction, to a service centric paradigm where value is co-created by customer and supplier through complex relationships in which the rewards are determined through negotiation. This study recognizes that in practice a supplier will and ought to continue to have some customer relationships that are transactional and others that involve higher levels of value co-creation. A five point continuum of relationships from transactional to strategic alliance is defined. Dyadic data in which customer and supplier are asked to evaluate the same relationship from their respective points of view are analyzed resulting in a portfolio of a supplier’s relationships that include each of the five levels. Three structured equation models are validated: first, the customer’s assessment of the level of relationship as a function of new, behaviorally anchored measures; second, the supplier’s assessment as a function of new, behaviorally anchored measures of investment; third, the differences between customer and supplier assessments as a function of differences in ratings of new, behaviorally anchored measures. Additionally, segmentation of the customer base is identified based on the level of assessment of the current and desired future level of relationship. Servicing processes are defined to enable the supplier to match the right offerings to each level of customer thereby optimizing their investment in their customer portfolio.

Our main aim with this study is to shed a light over the social workers opinions about what they believe will be the consequences of introducing Housing First in the city of Stockholm. We wanted to examine the social workers perceptions about how Housing First could change their client’s autonomy and justice. Therefor we accomplished five qualitative interviews with social workers. We analyzed our empirical material with the theoretical terms; justice, autonomy and intern role-conflict. The results and analysis showed that the social workers considered that their client’s autonomy and justice increases by the Housing First model. We also found that Housing First seems to reduce the social workers intern role-conflict. We found that the reason might be that they do not have to choose between different expectations in the same extent as when they work with the continuum of care model. The result also showed that the social workers believed that the more independent the clients are towards the social services and the social workers demands, the more dependent the clients become towards the social workers, by the means of motivation work.

This paper is about basic set theory and cardinalities for infinite sets. One of the results are that the line R and the plane R2 contains exactly the same number of points. Because of that the set theory is described with a formal language this the paper has an appendix about formal languages. / Denna uppsats behandlar grundläggande mängdlära och inriktar sig sedan på kardinaliteter för oändliga mängder. Bland de resultat som redovisas finns bland annat resultatet som säger att linjen R och planet R2 innehåller precis lika många punkter. Då mängdläran beskrivs av ett formellt språk så innehåller uppsatsen en bilaga om formella språk.

This research work has contributed in various ways to help develop a better understanding of textile composites and materials with complex microstructures in general. An instrumental part of this work was the development of an object-oriented framework that made it convenient to perform multiscale/multiphysics analyses of advanced materials with complex microstructures such as textile composites. In addition to the studies conducted in this work, this framework lays the groundwork for continued research of these materials. This framework enabled a detailed multiscale stress analysis of a woven DCB specimen that revealed the effect of the complex microstructure on the stress and strain energy release rate distribution along the crack front. In addition to implementing an oxidation model, the framework was also used to implement strategies that expedited the simulation of oxidation in textile composites so that it would take only a few hours. The simulation showed that the tow architecture played a significant role in the oxidation behavior in textile composites. Finally, a coupled diffusion/oxidation and damage progression analysis was implemented that was used to study the mechanical behavior of textile composites under mechanical loading as well as oxidation. A parametric study was performed to determine the effect of material properties and the number of plies in the laminate on its mechanical behavior. The analyses indicated a significant effect of the tow architecture and other parameters on the damage progression in the laminates.