Les deux premiers chapitres de cette étude mettent en exergue les raisons pour lesquelles des biblistes sont de plus en plus convaincus que lire ce corpus, dans sa forme actuelle, comme un tout reste la voie la mieux indiquée pour cerner son message. Le premier chapitre montre que les exégètes partisans de l’approche diachronique tentent de justifier son organisation par la reconstitution hypothétique des ipsissima verba d’Amos. Ils morcellement ce corpus en de petits fragments indépendants, dévalorisent neuf de ses passages, perçus comme secondaires et ré-disposent, à leur guise, ceux supposés mal placés. Le second chapitre relève que ces mêmes passages empêchent les partisans de l’approche synchronique de s’accorder sur sa structuration d’ensemble et incitent des commentateurs à alléguer que ce livre est désordonné. Les trois derniers chapitres étudient les neuf passages souvent perçus comme secondaires et disparates. Ils montrent que ces textes sont accordés à leurs contextes et que leur présence est essentielle à l’équilibre littéraire et théologique du livre. Cette étude dévoile que ce corpus est cohérent et doté d’une stratégie littéraire unifiante. / The two first chapters of this present study examines underlines the reasons for which biblical scholars are more and more convinced that read the corpus as a whole, in its present form, remains the best way to understand it message. The first chapter demonstrates that the commentators who advocate a diachronic approach sought and continue to justify the composition of this book by the hypothetical reconstitution of the “ipsissima verba” of Amos. They often divide the text into numerous small independent fragments; sacrificing nine passages perceived as secondary and out of place and arranges certain of them as they think fit. The second chapter demonstrates that these same passages prevent the followers of the synchronic approach agreeing on a structure capable of proving that this corpus is a very sophisticated work. The three last chapters study the nine passages often considered secondary and disparate. They show that these passages are in harmony with their contexts and their presence is essential to the literary and theological balance of the book. This study reveals de facto that, this corpus is a well-organized book with a unifying literary strategy.

De nombreux domaines applicatifs conduisent à résoudre des problèmes inverses où le signal ou l'image à reconstruire est à la fois parcimonieux et positif. Si la structure de certains algorithmes de reconstruction parcimonieuse s'adapte directement pour traiter les contraintes de positivité, il n'en va pas de même des algorithmes gloutons orthogonaux comme OMP et OLS. Leur extension positive pose des problèmes d'implémentation car les sous-problèmes de moindres carrés positifs à résoudre ne possèdent pas de solution explicite. Dans la littérature, les algorithmes gloutons positifs (NNOG, pour “Non-Negative Orthogonal Greedy algorithms”) sont souvent considérés comme lents, et les implémentations récemment proposées exploitent des schémas récursifs approchés pour compenser cette lenteur. Dans ce manuscrit, les algorithmes NNOG sont vus comme des heuristiques pour résoudre le problème de minimisation L0 sous contrainte de positivité. La première contribution est de montrer que ce problème est NP-difficile. Deuxièmement, nous dressons un panorama unifié des algorithmes NNOG et proposons une implémentation exacte et rapide basée sur la méthode des contraintes actives avec démarrage à chaud pour résoudre les sous-problèmes de moindres carrés positifs. Cette implémentation réduit considérablement le coût des algorithmes NNOG et s'avère avantageuse par rapport aux schémas approximatifs existants. La troisième contribution consiste en une analyse de reconstruction exacte en K étapes du support d'une représentation K-parcimonieuse par les algorithmes NNOG lorsque la cohérence mutuelle du dictionnaire est inférieure à 1/(2K-1). C'est la première analyse de ce type. / Non-negative sparse approximation arises in many applications fields such as biomedical engineering, fluid mechanics, astrophysics, and remote sensing. Some classical sparse algorithms can be straightforwardly adapted to deal with non-negativity constraints. On the contrary, the non-negative extension of orthogonal greedy algorithms is a challenging issue since the unconstrained least square subproblems are replaced by non-negative least squares subproblems which do not have closed-form solutions. In the literature, non-negative orthogonal greedy (NNOG) algorithms are often considered to be slow. Moreover, some recent works exploit approximate schemes to derive efficient recursive implementations. In this thesis, NNOG algorithms are introduced as heuristic solvers dedicated to L0 minimization under non-negativity constraints. It is first shown that the latter L0 minimization problem is NP-hard. The second contribution is to propose a unified framework on NNOG algorithms together with an exact and fast implementation, where the non-negative least-square subproblems are solved using the active-set algorithm with warm start initialisation. The proposed implementation significantly reduces the cost of NNOG algorithms and appears to be more advantageous than existing approximate schemes. The third contribution consists of a unified K-step exact support recovery analysis of NNOG algorithms when the mutual coherence of the dictionary is lower than 1/(2K-1). This is the first analysis of this kind.

This master's thesis deals with climate policy integration in two European union's trade agreements, EU-Canada Comprehensive Economic and Trade Agreement (CETA) and EU-Japan Economic Partnership Agreement (EPA). Ambitions of EU's climate policy have grown in recent years. Therefore the EU needs to cooperate with other world countries to tackle the climate change now even more than ever before. One of the solutions for such a binding cooperation to fight climate change could be implemented through the EU trade policy. This master's thesis is therefore interested in climate policy integration concerning the policy coherence during the process of making trade agreements and also in climate policy aspects of the final form of the agreements. In the theoretical part, this thesis describes the academic debates of policy coherence, climate policy actors in the institutional framework of the EU and also the history of EU's climate policy. Research operationalises the academic concept of climate policy integration (CPI) and carries it out through analysisand comparison of official EU's institutional documents. In the final part, this master's thesis draws its conclusions mainly from comparison of EPA and CETA.

Although current augmented, virtual, and mixed reality (AR/VR/MR) systems are facing advanced and immersive experience in the entertainment industry with countless media forms. Theses systems suffer a lack of correct direct and indirect illumination modeling where the virtual objects render with the same lighting condition as the real environment. Some systems are using baked GI, pre-recorded textures, and light probes that are mostly accomplished offline to compensate for precomputed real-time global illumination (GI). Thus, illumination information can be extracted from the physical scene for interactively rendering the virtual objects into the real world which produces a more realistic final scene in real-time. This work approaches the problem of visual coherence in AR by proposing a system that detects the real-world lighting conditions in dynamic scenes, then uses the extracted illumination information to render the objects added to the scene. The system covers several major components to achieve a more realistic augmented reality outcome. First, the detection of the incident light (direct illumination) from the physical scene with the use of computer vision techniques based on the topological structural analysis of 2D images using a live-feed 360^o camera instrumented on an AR device that captures the entire radiance map. Also, the physics-based light polarization eliminates or reduces false-positive lights such as white surfaces, reflections, or glare which negatively affect the light detection process. Second, the simulation of the reflected light (indirect illumination) that bounce between the real-world surfaces to be rendered into the virtual objects and reflect their existence in the virtual world. Third, defining the shading characteristic/properties of the virtual object to depict the correct lighting assets with a suitable shadow casting. Fourth, the geometric properties of real-scene including plane detection, 3D surface reconstruction, and simple meshing are incorporated with the virtual scene for more realistic depth interactions between the real and virtual objects. These components are developed methods which assumed to be working simultaneously in real-time for photo-realistic AR. The system is tested with several lighting conditions to evaluate the accuracy of the results based on the error incurred between the real/virtual objects casting shadow and interactions. For system efficiency, the rendering time is compared with previous works and research. Further evaluation of human perception is conducted through a user study. The overall performance of the system is investigated to reduce the cost to a minimum.

La sclérose en plaques est une maladie dégénérative qui peut affecter la vision ainsi que différentes structures du système visuel afférent. La partie de l'oeil plus souvent affectée par la sclérose en plaques est le nerf optique, sous forme de névrite optique. Une technologie, nommée TCO (tomographie par cohérence optique), permet de prendre une image du nerf optique et de ses fibres nerveuses qui s'étendent sur la rétine. Dans cette thèse, la TCO a permis d’obtenir une épaisseur des fibres nerveuses autour du nerf optique, ainsi qu’une épaisseur totale de la macula et de la couche de cellules ganglionnaires chez les patients atteints de sclérose en plaques, avec et sans histoire de nérite optique, et chez un groupe de patients contrôle. Les résultats démontrent que seule l’épaisseur de la couche de cellules ganglionnaires permet de différentier les patients avec sclérose en plaques sans histoire de névrite optique des patients contrôle. Une deuxième étude a évalué la qualité visuelle en mesurant la sensibilité aux contrastes ainsi que la qualité de vie reliée à la vision avec un questionnaire de qualité de vie. Les résultats démontrent qu’une nouvelle charte de sensibilité aux contrastes, plus facile à administrer en clinique, permet aussi de différentier les patients sans névrite optique du groupe contrôle. De plus, la qualité de vie des patients ayant eu un épisode de névrite optique semble significativement affectée, même si le pronostic est considéré très favorable et que l’acuité visuelle est « bonne » suite à une névrite optique. En conclusion, l’utilisation de l’OCT en plus de mesures sensibles de fonction visuelle, telle la sensibilité aux contrastes, et de qualité de vié peuvent contribuer à mieux détecter des dysfonctions oculo-visuelles subtiles, mais importantes chez les patients atteints de sclérose en plaques. / Multiple sclerosis (MS) is the most common neurological condition causing disability in working-age adults. The hallmark of MS related disability is axonal loss. Through new technologies, such as optical coherence tomography (OCT), the retinal nerve fibre layer (RNFL), composed of ganglion cell axons, can be visualized and studied non-invasively in cross-section. Furthermore, recent OCT advances allow precise retinal layer segmentation and macular imaging of the ganglion cell layer. In this thesis, these different OCT parameters were measured to see which layers would be most affected in MS patients without previous optic neuritis. Results show that macular ganglion cell layer thickness is the only OCT parameter that can differentiate this sub-group of patients from healthy controls. Visual function was then assessed using a newly available, easy to use contrast sensitivity chart that can be self-administered by patients. Results show that this chart is also capable of differentiating MS patients without optic neuritis from controls, but usually gives better contrast sensitivity scores than the Mars chart. Lastly, vision-specific quality of life was assessed and proved to be reduced in MS patients with prior optic neuritis, despite supposed favorable recovery and good visual acuity in patients with this diagnosis. In sum, the use of OCT imaging, as well as sensitive visual function and quality of life measures, could help detect subtle, yet important structural or functional visual changes in patients with MS. This could ultimately help better screen, manage and counsel this subset of patients.

ransmitted-light coherence-controlled holographic microscope (CCHM) based on an off-axis achromatic and space-invariant interferometer with a diffractive beamsplitter has been designed, constructed and tested. It is capable to image objects illuminated by light sources of arbitrary degree of temporal and spatial coherence. Off-axis image-plane hologram is recorded and the image complex amplitude (intensity and phase) is reconstructed numerically using fast Fourier transform algorithms. Phase image represents the optical path difference between the object and the reference arms caused by presence of an object. Therefore, it is a quantitative phase contrast image. Intensity image is confocal-like. Optical sectioning effect induced by an extended, spatial incoherent light source is equivalent to a conventional confocal image. CCHM is therefore capable to image objects under a diffusive layer or immersed in a turbid media. Spatial and temporal incoherence of illumination makes the optical sectioning effect stronger compared to a confocal imaging process. Object wave reconstruction from the only one recorded interference pattern ensures high resistance to vibrations and medium or ambience fluctuations. The frame rate is not limited by any component of the optical setup. Only the detector and computer speeds limit the frame rate. CCHM therefore allows observation of rapidly varying phenomena. CCHM makes the ex-post numerical refocusing possible within the coherence volume. Coherence degree of the light source in CCHM can be adapted to the object and to the required image properties. More coherent illumination provides wider range of numerical refocusing. On the other hand, a lower degree of coherence makes the optical sectioning stronger, i.e. the optical sections are thiner, it reduces coherence-noise and it makes it possible to separate the ballistic light. In addition to the ballistic light separation, CCHM enables us to separate the diffused light. Multi-colour-light

On demand single-photon and entangled-photon sources are key building-blocks for many proposed photonic quantum technologies. For practical device applications, epitaxially grown quantum dots (QDs) are of increasing importance due to their bright photon emission with sharp line width. Particularly, they are solid-state systems and can be easily embedded within a light-emitting diode (LED) to achieve electrically driven sources. Therefore, one would expect a full-fledged optoelectronic quantum network that is running on macroscopically separated, QD-based single- and entangled-photon devices. An all-electrically operated wavelength-tunable on demand single-photon source (SPS) is demonstrated first. The device consists of a LED in the form of self-assembled InGaAs QDs containing nanomembrane integrated onto a piezoelectric crystal. Triggered single photons are generated via injection of ultra-short electrical pulses into the diode, while their energy can be precisely tuned over a broad range of about 4.8 meV by varying the voltage applied to the piezoelectric crystal. High speed operation of this single-photon emitting diode up to 0.8 GHz is demonstrated. In the second part of this thesis, a fast strain-tunable entangled-light-emitting diode (ELED) is demonstrated. It has been shown that the fine structure splitting of the exciton can be effectively overcome by employing a specific anisotropic strain field. By injecting ultra-fast electrical pulses to the diode, electrically triggered entangled-photon emission with high degree of entanglement is successfully realized. A statistical investigation reveals that more than 30% of the QDs in the strain-tunable quantum LED emit polarization-entangled photon-pairs with entanglement-fidelities up to f+ = 0.83(5). Driven at the highest operation speed ever reported so far (400 MHz), the strain-tunable quantum LED emerges as unique devices for high-data rate entangled-photon applications. In the end of this thesis, on demand and wavelength-tunable LH single-photon emission from strain engineered GaAs QDs is demonstrated. Fourier-transform spectroscopy is performed, from which the coherence time of the LH single-photon emission is studied. It is envisioned that this new type of LH exciton-based SPS can be applied to realize an all-semiconductor based quantum interface in the foreseeable distributed quantum networks.

Kandidatuppsats i Företagsekonomi III, Organisation 15 hp, 2FE78E, Ekonomihögskolan vid Linnéuniversitetet i Kalmar. VT 2023. Titel: HR-paradoxen: Att arbeta med mänskliga resurser som inte är på plats. Författare: Kajsa Roos och Petra Ruzsa-Pal Lärosäte: Linnéuniversitetet Ämne: Organisation Handledare: Iva Josefsson Examinator: Mikael Lundgren  Problemformuleringar: Hur uppfattar HR-medarbetare att deras yrke förändrats, vad gäller arbete med organisationskultur och gemenskap, i och med det ökande distans- och hybridarbetet?  Hur kan HR-medarbetare arbeta för att skapa och upprätthålla gemenskap och en gynnsam organisationskultur vid distans- och hybridarbete? Syfte: Syftet med studien är att ge en bild av hur HR-yrket förändrats i och med det ökande distans- och hybridarbetet samt att redogöra för hur HR-ansvariga kan arbeta med att skapa och upprätthålla gemenskap och en positiv organisationskultur i en tid präglad av distans- och hybridarbete.  Metod: Studien följer en induktiv ansats som bygger på en kvalitativ forskningsstrategi där studiens empiri samlats in genom nio intervjuer förlagda på åtta olika organisationer med hjälp av semistrukturerade frågor. Empirin har senare analyserats, tolkats och kategoriserats.  Slutsats: Utifrån studien går det att se att HR-medarbetare behöver tänka och agera på ett annat sätt än tidigare, gällande både aktiviteter, rekrytering och relationsbyggande. Den främsta skillnaden är att de fysiska träffarna och relationerna hamnat i bakgrunden, därför behöver HR-medarbetare arbeta för att skapa nya arenor där dessa möten kan uppstå. Studien visar vidare att det är fördelaktigt att lägga ner mer tid och planering på aktiviteter som ämnar ersätta fysiska aktiviteter. Att vidare involvera personalen i viktiga beslut skapar ett bättre klimat och kultur, som präglas av tillit, fria val och god kommunikation. / Bachelor thesis Business Administration III, Organization 15 credits, 2FE78E, School of Economics at Linnaeus University of Kalmar. Spring 2023. Title: The HR-Paradox: Working with human resources that are not present in the workplace Authors: Kajsa Roos and Petra Ruzsa-Pal Institution: Linnaeus University Subject: Organization Advisor: Iva Josefsson Examiner: Mikael Lundgren   Research questions: How do HR-employees perceive that their profession has changed, in terms of working with organizational culture and a sense of community, in relation to the increased occurrence of remote- and hybrid work? How can HR-employees work to create and maintain a favorable organizational culture and a sense of community in remote- and hybrid work? Purpose: The aim of this study is to present a picture of how the HR-profession has changed due to the increasing distance- and hybrid work and to explain how strategic HR-employees can work to create and maintain a sense of community and togetherness as well as a positive organizational culture in a time embossed by distance- and hybrid work. Method: This study follows an inductive approach based on a qualitative research strategy, where the study's empirical data has been collected though nine interviews held at eight different organizations, using semi-structured interview questions. The empirical material has later been analyzed and categorized.  Conclusion: Based on this study, we can see that HR-employees need to think and act in a different way than before, regarding both activities, recruitment and relationship building. The main difference has been that the physical meetings and relationships have fallen into the background, therefore HR-employees need to create new arenas where such meetings can occur. The study further shows that it is beneficial to spend more time and planning on activities that replace physical activities. Furthermore, involving the staff in important decisions creates a better climate and culture and should be characterized by trust and good communication.

<pre><p>Difficulty understanding speech in background noise is the most common hearing complaint. Elucidating the neurophysiological mechanisms underlying speech intelligibility in everyday environments with multiple sound sources and distortions is hence important for any technology that aims to improve real-world listening. Using a combination of behavioral, electroencephalography (EEG), and computational modeling experiments, this dissertation provides insight into how the brain analyzes such complex scenes, and what roles different acoustic cues play in facilitating this process and in conveying phonetic content. Experiment #1 showed that brain oscillations selectively track the temporal envelopes (i.e., modulations) of attended speech in a mixture of competing talkers, and that the strength and pattern of this attention effect differs between individuals. Experiment #2 showed that the fidelity of neural tracking of attended-speech envelopes is strongly shaped by the modulations in interfering sounds as well as the temporal fine structure (TFS) conveyed by the cochlea, and predicts speech intelligibility in diverse listening environments. Results from Experiments #1 and #2 support the theory that temporal coherence of sound elements across envelopes and/or TFS shapes scene analysis and speech intelligibility. Experiment #3 tested this theory further by measuring and computationally modeling consonant categorization behavior in a range of background noises and distortions. We found that a physiologically plausible model that incorporated temporal-coherence effects predicted consonant confusions better than conventional speech-intelligibility models, providing independent evidence that temporal coherence influences scene analysis. Finally, results from Experiment #3 also showed that TFS is used to extract speech content (voicing) for consonant categorization even when intact envelope cues are available. Together, the novel insights provided by our results can guide future models of speech intelligibility and scene analysis, clinical diagnostics, improved assistive listening devices, and other audio technologies.</p></pre>

This study is, in part, a response to arguments that claim higher education fails to prepare students with fundamental communication skills necessary for everyday life and indicative of "educated" persons. Though the validity of such arguments is contestable, they nonetheless reflect fundamental inadequacies in current educational theories and practices that have evolved over centuries of curricular, cultural, and socioeconomic change. Current theories and practices in higher education, specifically general education, reflect a misunderstanding of both the purpose of education in a democracy and the role of the liberal arts, specifically rhetoric, in accomplishing that purpose. The consequences of rhetorically-impoverished general education curricula are manifested not only in the declining literate and communicative practices of recent college graduates but also in the declining civic and democratic practices of a growing number of Americans. By tracing the histories of and relationships among education, rhetoric, and composition instruction, this thesis highlights the purpose of education and the role of writing instruction and rhetoric in accomplishing that purpose. This review demonstrates that the introductory composition course, when informed by epistemic rhetoric, provides curricular coherence in general education while clarifying and accomplishing the primary purpose of education: to facilitate the development of autonomous citizens capable of participating in the democratic practices of their communities. This outcome relies on rhetorical education, or rhetorical training in the language arts, which allows students to understand and articulate their identity as individuals in relation to the various communities to which they belong and with which they interact. The misconception of rhetoric and relegation of writing instruction calls for a university-wide reconceptualization of the purpose of education and the complementary roles of general education and writing instruction in accomplishing that purpose. This thesis invites novice and experienced composition instructors to explore further the relationships among education, democracy, language, and rhetoric to recognize the central role of composition instruction in enabling individual autonomy and sustaining a healthy democracy while improving literate and communicative practices.