Dissertations / Theses on the topic 'Focus structures'

The common practice is to design chemical processes and their control systems in sequence. However, process design and control share important decisions, and when the process design is fixed there is little room left to improve the control performance. These observations suggest process design and control should be integrated. The conventional framework for integrated design and control is to optimize the process, its control structure, and controllers, simultaneously. However, there are numerical as well as conceptual complexities associated with optimization of controllers. This research proposes integrated design and control based on perfect control. In the proposed optimization framework, an inversely controlled process model replaces the models of process and its controllers. Although the process and its control structure are optimized simultaneously, the complexities associated with controllers are disentangled from the problem formulation. The thesis starts with introduction of the relevant concepts and review of literature in Chapters 1 and 2. Then, in Chapter 3, the steady-state and dynamic formulations of the proposed framework are presented. A steady-state inversely controlled process model achieves a higher degree of complexity reduction and ensures regulatory steady-state operability. However, at the price of higher modelling efforts, a dynamic inversely controlled process model ensures functional controllability as well. The proposed steady-state and dynamic optimization frameworks are demonstrated using several case studies. The proposed steady-state framework was applied for optimal control structure selection of a distillation train in Chapter 4 and integrated design and control of a reactive distillation column in Chapter 5. The proposed dynamic optimization framework was applied for the case of two heat-integrated series reactors in Chapter 6. The proposed optimization frameworks were successful in establishing the trade-off between control and process objectives. Finally, the thesis concludes with discussions, critical evaluation of the research and suggestions for future research in Chapter 7.

In this dissertation, I examine the marking of focus and givenness in Nte?kepmxcin (Thompson River Salish). The focus is, roughly, the answer to a wh-question, and is highlighted by the primary sentential accent in stress languages like English. This has been formalized as the Stress-Focus Correspondence Principle. Given material is old information, and is de-accented in languages like English. Nte?kepmxcin is a stress language, but marks focus structurally. However, I argue that the structure has a prosodie motivation: the clause is restructured such that the focus is leftmost in the intonational phrase. It follows that Salish focus structures lack the special semantics that motivates the use of English structural focus (clefts). As a theoretical contribution, I show that the Stress-Focus Correspondence Principle does not account for focus marking in all stress languages, nor does the "distress-given" generalization account for the marking of given information. This is because focus surfaces leftmost, while the nuclear stress position is rightmost. Instead of "stress-focus", I propose that alignment with prosodie phrase edges is the universally common thread in focus marking. This mechanism enables listeners to rapidly recover the location of the focus, by identifying coarse-grained phonological categories (p-phrases and i-phrases). In Thompson River Salish, the focus is associated with the leftmost p-phrase in the matrix intonational phrase. The analysis unifies the marking of focus across languages by claiming that focus is always marked prosodically, by alignment to a prosodie category. The study combines syntactic analysis of focus utterances with their phonetic realization and semantic characteristics. As such, this dissertation is a story about the interfaces. This research is based on a corpus of conversational data as well as single sentence elicitations, all of which are original data collected during fieldwork. The second contribution of this dissertation is thus methodological: I have developed various fieldwork techniques for collecting both spontaneous and scripted conversational discourses. The empirical contribution that results is a collection of conversational discourses, to add to the single speaker traditional texts already recorded for Nte?kepmxcin.

Concrete is essential for the construction industry with characteristic properties that make it irreplaceable in some aspects. However, due to the large volumes consumed and the energy intense cement clinker production it also has a notable climate impact. In order to reach the international and national sustainability goals it is therefore important to reduce the climate impact of concrete structures. There are many ways to influence the environmental impact of concrete and a detailed analysis is one of the actions that could push the industry and the society towards a sustainable development. The purpose of this research is to evaluate the environmental impact of concrete structures and the built environment and to highlight the possibilities to reduce that impact with choice of concrete mix and innovative design solutions. A life cycle assessment (LCA) was carried out to analyze the environmental impact of two thin façade solutions with innovative materials and to evaluate influences of different greenhouse gas reducing measures on concrete bridges. The influence of supplementary cementitious materials (SCM) in terms of climate impact and durability was also analyzed. The results indicate that SCMs have a twofold effect on the climate impact of reinforced concrete structures. Not only do they reduce the greenhouse gases through cement clinker replacement but also by an improvement of durability regarding chloride ingress. Currently, this is not considered in the regulations, which makes it difficult to foresee in LCA at early design stages. The results also show great possibilities to reduce the climate impact through different measures and design alternatives and the need for further development of products and solutions.

QC 20171002

Kyoto University (京都大学)
0048
新制・課程博士
博士(人間・環境学)
甲第19082号
人博第735号
新制||人||176(附属図書館)
26||人博||735(吉田南総合図書館)
32033
京都大学大学院人間・環境学研究科共生人間学専攻
(主査)教授 田地野 彰, 教授 西山 教行, 准教授 中森 誉之
学位規則第4条第1項該当

Illustrative visualization is a term for visualization techniques inspired by traditional technical and medical illustration. These techniques are based on knowledge of the human perception and provide effective visual abstraction to make the visualizations more understandable. Within volume rendering these expressive visualizations can be achieved using non-photorealistic rendering that combines different levels of abstraction to convey the most important information to the viewer. In this thesis I will look at illustrative techniques and show how these can be used to visualize anatomical structures in a medical volume data. The result of the thesis is a prototype of an anatomy education application, that makes use of illustrative techniques to have a focus+context visualization with feature enhancement, tone shading and labels describing the anatomical structures. This results in an expressive visualization and interactive exploration of the human anatomy.

The thesis examines thinking about, and experiences of, gender roles and family relationships for the gentry and nobility, particularly through the process of marriage formation. The study draws on a range of sources, including collections of family letters, personal memoirs and prescriptive literature. Some chapters pursue a case study approach to correspondence. Others consider the relationship between published advice and personal attitudes and experience. The study explores whether there were contradictions in thinking on family life, gender, love and marriage, as some historians have claimed, and seeks to disentangle the overlaps and inter-relationships between these broad themes. While family and gender roles were multi-layered and multi-faceted, thinking and practice were neither incoherent nor conflicting. Rather, they were highly complex and treated as such. How marriages were forged and male and female roles in this process and in marriage itself required the balancing of many factors. Prescription recognised this and practice reinforced the need for pragmatism. Moreover, advice was not monolithic, but nuanced according to its purpose and intended audience. Gender roles, family relationships and marriage were varied and manifold within both the realms of rhetoric and experience. There was a strong elision of gender roles, affording women significant scope for decision-making. Family relationships were fluid, underpinned by a heavy dependence on, respect for, and emotional investment in, the extended family. Marriage formation was informed by recognition of the importance of a moral, disciplined love for sustaining marriages and families. The thesis highlights the intricacies of relatively new (although increasingly wellresearched) areas of study for historians. It seeks to undermine a simplistic division between prescription and practice, and between advisers and the advised, and to raise the importance of considering men within the family and facets of female authority.

Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 61-62).
Biomimetics is the study and analysis of natural systems to inform engineering design and technology development. Through interdisciplinary research and analysis of natural phenomena, engineers are able to gain valuable insight to drive efficient and robust innovation. A critical understanding of nature's design constraints is necessary to effectively create an optimized bio-inspired design. A literature review of bio-inspired design is conducted with a focus on structures, dynamics and materials in the context of robotic locomotion. The biomimetic process in the read literature is analyzed for procedure and accomplishment. A generalized method of biomimetics is presented, based on the studied work. It is concluded that successful biomimetics requires four key elements: (1) a clear understanding of the natural system, gained through depth of biological study, (2) the development of a simplified model that encompasses the core elements of the natural system, (3) the design of a synthetic system that meets the model's specifications, and (4) engineering optimization to improve the final design.
by Ari Parsons Miller.
S.B.

Kyoto University (京都大学)
0048
新制・課程博士
博士(人間・環境学)
甲第21866号
人博第895号
新制||人||214(附属図書館)
2018||人博||895(吉田南総合図書館)
京都大学大学院人間・環境学研究科共生人間学専攻
(主査)准教授 中森 誉之, 教授 服部 文昭, 准教授 PETERSON Mark
学位規則第4条第1項該当

The papers collected in this volume were presented at a Graduate/Postgraduate Student Conference with the title Information Structure: Empirical Perspectives on Theory held on December 2 and 3, 2011 at Potsdam-Griebnitzsee. The main goal of the conference was to connect young researchers working on information structure (IS) related topics and to discuss various IS categories such as givenness, focus, topic, and contrast. The aim of the conference was to find at least partial answers to the following questions: What IS categories are necessary? Are they gradient/continuous? How can one deal with optionality or redundancy? How are IS categories encoded grammatically? How do different empirical methods contribute to distinguishing between the influence of different IS categories on language comprehension and production? To answer these questions, a range of languages (Avatime, Chinese, German, Ishkashimi, Modern Greek, Old Saxon, Russian, Russian Sign Language and Sign Language of the Netherlands) and a range of phenomena from phonology, semantics, and syntax were investigated. The presented theories and data were based on different kinds of linguistic evidence: syntactic and semantic fieldwork, corpus studies, and phonological experiments. The six papers presented in this volume discuss a variety of IS categories, such as emphasis and contrast (Stavropoulous, Titov), association with focus and topics (van Putten, Karvovskaya), and givenness and backgrounding (Kimmelmann, Röhr).

Three dimensions can be distinguished in a cross-linguistic account of information structure. First, there is the definition of the focus constituent, the part of the linguistic expression which is subject to some focus meaning. Second and third, there are the focus meanings and the array of structural devices that encode them. In a given language, the expression of focus is facilitated as well as constrained by the grammar within which the focus devices operate. The prevalence of focus ambiguity, the structural inability to make focus distinctions, will thus vary across languages, and within a language, across focus meanings.

Die Erfoschung informationsstruktureller Ausdrucksformen hat in den letzten Jahrzehnten stark an Bedeutung gewonnen. Der Schwerpunkt liegt dabei auf der Untersuchung von Universalien, die der Kennzeichnung von “alten/bekannten” und “neuen/wichtigen” Informationen dienen. Auch wenn die Forschung diesem Thema bereits viel Raum gegeben hat, weiß man heute immer noch sehr wenig über die Realisierungsmöglichkeiten von Topik und Fokus in schlecht dokumentierten Sprachen. Die vorliegende Dissertation leistet mit der Diskussion über die Fokusmarkierungsstrategien einer kleinen Sprachfamilie im Herzen Afrikas einen wichtigen Beitrag zur informationsstrukturellen Grundlagenforschung. Sie gibt einen Überblick über die Realisierungsmöglichkeiten von Topik und Fokus in sechs genealogisch verwandten Sprachen der Sara-Bagirmi-Gruppe (BAGIRMI, KENGA, MBAY, KABBA, NGAMBAY und SAR) und konzentriert sich dabei auf die Untersuchung der prädikatszentrierten Fokustypen. Diese bestehen aus i) Fokus auf der lexikalischen Bedeutung des Verbes, ii) Fokus auf dem Polaritätsoperator („Verum-Fokus“) und iii) Fokus auf dem Tempus-Aspekt-Modus-Operator. Die Arbeit beleuchtet somit nicht nur die grammatische Stuktur unzureichend untersuchter Sprachen, sie liefert mit dem Schwerpunkt auf Nichttermfokus auch Einblick in ein vernachlässigtes Forschungsfeld. Die Untersuchungen im Rahmen der Dissertation zeigen, dass die Sara-Bagirmi-Sprachen eine Vielzahl verschiedener Fokussierungsstrategien aufweisen. Obwohl alle sechs Sprachen zu einer Familie gehören, unterscheiden sich die vorhandenen Strategien formal und teilweise auch funktional voneinander. Der innerfamiliäre Vergleich der Gemeinsamkeiten und der Unterschiede erlaubt zum einen Rückschlüsse auf die Beziehung zwischen Form und Funktion im Allgemeinen. Zum anderen ermöglicht er konkrete Aussagen zur diachronen Entwicklung der ausgewählten Konstruktionen. Die Korpusstudie zu einer der Sprachen ergänzt die Forschungsarbeit. Sie stellt ausgewählte Merkmale der Fokusrealisierung vor und zeigt den Gebrauch der präsentierten Strategien im natürlichen Diskurs. Die vorliegende Dissertation komplettiert die Datenbasis der empirischen Sprachforschung und bereichert mit ihren Ergebnissen die Sprachtheorie um wertvolle Erkenntnisse. So belegt z.B. die Analyse der Fokussierungsstrategien des Sara-Bagirmi die enge Verbindung zwischen prädikatszentrierten Fokustypen und TAM-basierten Kategorien. Sie zeigt außerdem, dass die Klassifikation der prädikatszentrierten Fokustypen neu überdacht werden sollte, da einige der untersuchten Sprachen neben den o.g. Typen auch grammatikalisierte Formen von Intensivierung oder Formen von „Gewissheit“ aufweisen.
The development of information structue and its expression has become increasingly important in the recent decades. The main focus is on the investigation of linguistic universals that are used to identify “old/given” and “new/important” information. Despite of a body of literature on this issue, little is known about the possibilities of realization of topic and focus in poorly documented languages. This investigation contributes to basic informational research in the field of information on the focus marking strategies of a small language family in the heart of Africa. It gives an overview of the way in which topic and focus are implemented in six genealogically related languages of Sara-Bagirmi (BAGIRMI, KENGA, MBAY, KABBA, NGAMBAY and SAR). The focus is on the investigation of predicate-centered focus types. These consist of i) focus on the lexical meaning of the verb, ii) focus on the polarity operator (“truth-value focus”), and iii) focus on the tense-aspect-mode operator. The work thus not only illuminates the grammatical structure of insufficiently studied languages, but also provides an insight into a neglected field of research with emphazising non-term focus. The results show that the Sara-Bagirmi languages have a variety of different focus strategies. Although all six languages belong to one family, the existing strategies differ formally and partly functionally from each other. The inter-familiar comparison of the similarities and the differences allows, on the one hand, conclusions about the relationship between form and function in general. On the other hand, it makes concrete statements on the diachronic development of the selected constructions. The corpus study on one of the languages complements the research work. It presents selected features of the focus realization and shows the use of the presented strategies in natural discourse. This dissertation completes the database of empirical linguistic research and enriches the theory of language with valuable results. Thus, for example, the analysis of the focusing strategies in Sara-Bagirmi confirms the close relationship of predicate-centered focus types and TAM-based categories. It also shows that the classification of the predicate-centered focus types should be reconsidered, since some of the examined languages in addition to the abovementioned types have grammaticalized forms of “intensification” or “definiteness/ certainty”.

This thesis examines how and to what extent humanitarian aid organizations strategically focus on gender roles following disasters, and how they contribute to potential changes in gender roles. The case selected for the study is Nepal after the 2015 earthquakes where the reports of four international humanitarian aid organizations were examined through a qualitative content analysis. The thesis aims to provide a contribution to the disaster risk reduction literature with a special focus on the possibilities to use disasters as catalysts for changes in traditional gender roles. As humanitarian organizations are major actors in the aftermath of disasters, the purpose is to evaluate their efforts and connect that to previous literature in the field. As a theoretical foundation two contrasting theories are incorporated in the study, the first is the idea that a disaster can be a ’window of opportunity’ for changes in gender roles whereas the other one is that vulnerable people is often left more vulnerable after a disaster due to secondary consequences, a so called double disaster.  The main findings of the study demonstrate that none of the four international humanitarian organizations incorporated a gendered perspective in their aid efforts following the earthquakes in Nepal 2015. The organizations seldom separate women from men in their reports, demonstrating an unawareness of the gender power structures at play. Few activities had a potential to empower women and the ones that did lacked a long-term perspective to enhance gender equality and lower vulnerability.

Cette thèse a comme but de resituer l’œuvre de l’auteur suisse romand, Charles Ferdinand Ramuz dans le contexte français où elle a été souvent mal accueillie, plus particulièrement à l’époque contemporaine à sa création même. Afin de pouvoir situer les questionnements et les hypothèses, elle dresse un panorama des différents aspects de la réception de l’œuvre en question (malentendus, interprétations linguistiques, esthétiques et narratologiques). Ce travail souhaite s’inscrire dans le renouveau critique qui s’est fait jour dans les années soixante. Il étudie les stratégies d’expression et les techniques narratives qui rendraient possible une « langue-image » et une esthétique de la perception phénoménologico-cinématographique. Il consacre une attention particulière à l’usage ramuzien du pronom on ainsi qu’à la mise en œuvre des effets cinématographiques. L’analyse détaillée de ces constantes de l’écriture ramuzienne permettent non seulement de redéfinir les enjeux d’un regard détaché, objectif et de redécouvir le foyer perceptif comme doté de conscience et de cognition, mais aussi de poser une question qui peut paraître bouleversante : l’écriture de cet écrivain vaudois, mettrait-elle en œuvre ce que la création romanesque associée à la mouvance du Nouveau Roman définit et théorise trente ans plus tard ?
The aim of the present thesis is to resituate the work of the Swiss writer Charles Ferdinand Ramuz in the French context in which it was frequently badly received, namely in the contemporary age of its creation. In order to situate the questions and hypotheses, the thesis will provide a panorama of the different aspects of the work’s reception in question (misunderstandings, linguistic, aesthetic and narratological interpretations). This study aims to follow in the lines of the Critical Renewal which appeared in the sixties. It will study the strategies of expression and the narrative techniques that would allow a «language-image» and an aesthetics of the phenomenological-cinematographic perception. It will focus especially on Ramuz’ usage of “on” (we) as well as on the realization of the cinematographic effects. The detailed analysis of these constants in Ramuz’ writing make it possible not only to redefine the challenges of a detached and objective view and to rediscover the perceptive focus as if it was provided with conscience and cognition but also to raise a seemingly upsetting question: may it be possible that the writing of this Vaud writer already accomplishes what the Romanesque creation in association with the movement of the New Novel (Nouveau Roman) defines and theorises thirty years later ?

To build successful complex software systems, developers must collaborate with each other to solve issues. To facilitate this collaboration specialized tools are being integrated into development environments. Although these tools facilitate collaboration, they do not foster it. The problem is that the tools require the developers to maintain a list of other developers with whom they may wish to communicate. In any given situation, it is the developer who must determine who within this list has expertise for the specific situation. Unless the team is small and static, maintaining the knowledge about who is expert in particular parts of the system is difficult. As many organizations are beginning to use agile development and distributed software practices, which result in teams with dynamic membership, maintaining this knowledge is impossible. This thesis investigates whether emergent team structure can be used to support collaboration amongst software developers. The membership of an emergent team is determined from analysis of software artifacts. We first show that emergent teams exist within a particular open-source software project, the Eclipse integrated development environment. We then present a tool called Emergent Expertise Locator (EEL) that uses emergent team information to propose experts to a developer within their development environment as the developer works. We validated this approach to support collaboration by applying our approach to historical data gathered from the Eclipse project, Firefox and Bugzilla and comparing the results to an existing heuristic for recommending experts that produces a list of experts based on the revision history of individual files. We found that EEL produces, on average, results with higher precision and higher recall than the existing heuristic.
Science, Faculty of
Computer Science, Department of
Graduate

This paper reports on pilot work on the expression of Information Structure in Vietnamese and argues that Focus in Vietnamese is exclusively expressed prosodically: there are no specific focus markers, and the language uses phonology to express intonational emphasis in similar ways to languages like English or German. The exploratory data indicates that (i) focus is prosodically expressed while word order remains constant, (ii) listeners show good recoverability of the intended focus structure, and (iii) that there is a trading relationship between several phonetic parameters (duration, f0, amplitude) involved to signal prosodic (acoustic) emphasis.

This article takes stock of the basic notions of Information Structure (IS). It first provides a general characterization of IS — following Chafe (1976) — within a communicative model of Common Ground(CG), which distinguishes between CG content and CG management. IS is concerned with those features of language that concern the local CG. Second, this paper defines and discusses the notions of Focus (as indicating alternatives) and its various uses, Givenness (as indicating that a denotation is already present in the CG), and Topic (as specifying what a statement is about). It also proposes a new notion, Delimitation, which comprises contrastive topics and frame setters, and indicates that the current conversational move does not entirely satisfy the local communicative needs. It also points out that rhetorical structuring partly belongs to IS.

While the Information Structure (IS) is most naturally interpreted as 'structure of information', some may argue that it is structure of something else, and others may object to the use of the word 'structure'. This paper focuses on the question of whether the informational component can have structural properties such that it can be called 'structure'. The preliminary conclusion is that, although there are some vague indications of structurehood in it, it is perhaps better understood to be a representation that encodes a finite set of information-based partitions, rather than structure.

There are many factors which make speaking and understanding a second language (L2) a highly complex challenge. Skills and competencies in in both linguistic and metalinguistic areas emerge as parts of a multi-faceted, flexible concept underlying bilingual/multilingual communication. On the linguistic level, a combination of an extended knowledge of idiomatic expressions, a broad lexical familiarity, a large vocabulary size, and the ability to deal with phonetic distinctions and fine phonetic detail has been argued necessary for effective nonnative comprehension of spoken language. The scientific interest in these factors has also led to more interest in the L2’s information structure, the way in which information is organised and packaged into informational units, both within and between clauses. On a practical level, the information structure of a language can offer the means to assign focus to a certain element considered important. Speakers can draw from a rich pool of linguistic means to express this focus, and listeners can in turn interpret these to guide them to the highlighted information which in turn facilitates comprehension, resulting in an appropriate understanding of what has been said. If a speaker doesn’t follow the principles of information structure, and the main accent in a sentence is placed on an unimportant word, then there may be inappropriate information transfer within the discourse, and misunderstandings. The concept of focus as part of the information structure of a language, the linguistic means used to express it, and the differential use of focus in native and nonnative language processing are central to this dissertation. Languages exhibit a wide range of ways of directing focus, including by prosodic means, by syntactic constructions, and by lexical means. The general principles underlying information structure seem to contrast structurally across different languages, and they can also differ in the way they express focus. In the context of L2 acquisition, characteristics of the L1 linguistic system are argued to influence the acquisition of the L2. Similarly, the conceptual patterns of information structure of the L1 may influence the organization of information in the L2. However, strategies and patterns used to exploit information structure for succesful language comprehension in the native L1, may not apply at all, or work in different ways or todifferent degrees in the L2. This means that L2 learners ideally have to understand the way that information structure is expressed in the L2 to fully use the information structural benefit in the L2. The knowledge of information structural requirements in the L2 could also imply that the learner would have to make adjustments regarding the use of information structural devices in the L2. The general question is whether the various means to mark focus in the learners’ native language are also accessible in the nonnative language, and whether a L1-L2 transfer of their usage should be considered desirable. The current work explores how information structure helps the listener to discover and structure the forms and meanings of the L2. The central hypothesis is that the ability to access information structure has an impact on the level of the learners’ appropriateness and linguistic competence in the L2. Ultimately, the ability to make use of information structure in the L2 is believed to underpin the L2 learners’ ability to effectively communicate in the L2. The present study investigated how use of focus markers affects processing speed and word recall recall in a native-nonnative language comparison. The predominant research question was whether the type of focus marking leads to more efficient and accurate word processing in marked structures than in unmarked structures, and whether differences in processing patterns can be observed between the two language conditions. Three perception studies were conducted, each concentrating on one of the following linguistic parameters: 1. Prosodic prominence: Does prosodic focus conveyed by sentence accent and by word position facilitate word recognition? 2. Syntactical means: Do cleft constructions result in faster and more accurate word processing? 3. Lexical means: Does focus conveyed by the particles even/only (German: sogar/nur) facilitate word processing and word recall? Experiments 2 and 3 additionally investigated the contribution of context in the form of preceding questions. Furthermore, they considered accent and its facilitative effect on the processing of words which are in the scope of syntactic or lexical focus marking. All three experiments tested German learners of English in a native German language condition and in English as their L2. Native English speakers were included as a control for the English language condition. Test materials consisted of single sentences, all dealing with bird life. Experiment 1 tested word recognition in three focus conditions (broad focus, narrow focus on the target, and narrow focus on a constituent than the target) in one condition using natural unmanipulated sentences, and in the other two conditions using spliced sentences. Experiment 2 (effect of syntactic focus marking) and Experiment 3 (effect of lexical focus marking) used phoneme monitoring as a measure for the speed of word processing. Additionally, a word recall test (4AFC) was conducted to assess the effective entry of target-bearing words in the listeners’ memory. Experiment 1: Focus marking by prosodic means Prosodic focus marking by pitch accent was found to highlight important information (Bolinger, 1972), making the accented word perceptually more prominent (Klatt, 1976; van Santen & Olive, 1990; Eefting, 1991; Koopmans-van Beinum & van Bergem, 1989). However, accent structure seems to be processed faster in native than in nonnative listening (Akker& Cutler, 2003, Expt. 3). Therefore, it is expected that prosodically marked words are better recognised than unmarked words, and that listeners can exploit accent structure better for accurate word recognition in their L1 than they do in the L2 (L1 > L2). Altogether, a difference in word recognition performance in L1 listening is expected between different focus conditions (narrow focus > broad focus). Results of Experiments 1 show that words were better recognized in native listening than in nonnative listening. Focal accent, however, doesn’t seem to help the German subjects recognize accented words more accurately, in both the L1 and the L2. This could be due to the focus conditions not being acoustically distinctive enough. Results of experiments with spliced materials suggest that the surrounding prosodic sentence contour made listeners remember a target word and not the local, prosodic realization of the word. Prosody seems to indeed direct listeners’ attention to the focus of the sentence (see Cutler, 1976). Regarding the salience of word position, VanPatten (2002; 2004) postulated a sentence location principle for L2 processing, stating a ranking of initial > final > medial word position. Other evidence mentions a processing adantage of items occurring late in the sentence (Akker & Cutler, 2003), and Rast (2003) observed in an English L2 production study a trend of an advantage of items occurring at the outer ends of the sentence. The current Experiment 1 aimed to keep the length of the sentences to an acceptable length, mainly to keep the task in the nonnative lnaguage condition feasable. Word length showed an effect only in combination with word position (Rast, 2003; Rast & Dommergues, 2003). Therefore, word length was included in the current experiment as a secondary factor and without hypotheses. Results of Experiment 1 revealed that the length of a word doesn’t seem to be important for its accurate recognition. Word position, specifically the final position, clearly seems to facilitate accurate word recognition in German. A similar trend emerges in condition English L2, confirming Klein (1984) and Slobin (1985). Results don’t support the sentence location principle of VanPatten (2002; 2004). The salience of the final position is interpreted as recency effect (Murdock, 1962). In addition, the advantage of the final position may benefit from the discourse convention that relevant background information is referred to first, and then what is novel later (Haviland & Clark, 1974). This structure is assumed to cue the listener as to what the speaker considers to be important information, and listeners might have reacted according to this convention. Experiment 2: Focus marking by syntactic means Atypical syntactic structures often draw listeners’ attention to certain information in an utterance, and the cleft structure as a focus marking device appears to be a common surface feature in many languages (Lambrecht, 2001). Surface structure influences sentence processing (Foss & Lynch, 1969; Langford & Holmes, 1979), which leads to competing hypotheses in Experiment 2: on the one hand, the focusing effect of the cleft construction might reduce processing times. On the other, cleft constructions in German were found to be used less to mark fo than in English (Ahlemeyer & Kohlhof, 1999; Doherty, 1999; E. Klein, 1988). The complexity of the constructions, and the experience from the native language might work against an advantage of the focus effect in the L2. Results of Experiment 2 show that the cleft structure is an effective device to mark focus in German L1. The processing advantage is explained by the low degree of structural markedness of cleft structures: listeners use the focus function of sentence types headed by the dummy subject es (English: it) due to reliance on 'safe' subject-prominent SVO-structures. The benefit of cleft is enhanced when the sentences are presented with context, suggesting a substantial benefit when focus effects of syntactic surface structure and coherence relation between sentences are integrated. Clefts facilitate word processing for English native speakers. Contrary to German L1, the marked cleft construction doesn’t reduce processing times in English L2. The L1-L2 difference was interpreted as a learner problem of applying specific linguistic structures according to the principles of information structure in the target language. Focus marking by cleft did not help German learners in native or in nonnative word recall. This could be attributed to the phonological similarity of the multiple choice options (Conrad & Hull, 1964), and to a long time span between listening and recall (Birch & Garnsey, 1995; McKoon et al., 1993). Experiment 3: Focus marking by lexical means Focus particles are elements of structure that can indicate focus (König, 1991), and their function is to emphasize a certain part of the sentence (Paterson et al., 1999). I argue that the focus particles even/only (German: sogar/nur) evoke contrast sets of alternatives resp. complements to the element in focus (Ni et al., 1996), which causes interpretations of context. Therefore, lexical focus marking isn’t expected to lead to faster word processing. However, since different mechanisms of encoding seem to underlie word memory, a benefit of the focusing function of particles is expected to show in the recall task: due to focus particles being a preferred and well-used feature for native speakers of German, a transfer of this habitualness is expected, resulting in a better recall of focused words. Results indicated that focus particles seem to be the weakest option to mark focus: Focus marking by lexical particle don’t seem to reduce word processing times in either German L1, English L2, or in English L1. The presence of focus particles is likely to instantiate a complex discourse model which lets the listener await further modifying information (Liversedge et al., 2002). This semantic complexity might slow down processing. There are no indications that focus particles facilitate native language word recall in German L1 and English L1. This could be because focus particles open sets of conditions and contexts that enlarge the set of representations in listeners rather than narrowing it down to the element in the scope of the focus particle. In word recall, the facilitative effect of focus particles emerges only in the nonnative language condition. It is suggested that L2 learners, when faced with more demanding tasks in an L2, use a broad variety of means that identify focus for a better representation of novel words in the memory. In Experiments 2 and 3, evidence suggests that accent is an important factor for efficient word processing and accurate recall in German L1 and English L1, but less so in English L2. This underlines the function of accent as core speech parameter and consistent cue to the perception of prominence native language use (see Cutler & Fodor, 1979; Pitt & Samuel, 1990a; Eriksson et al., 2002; Akker & Cutler, 2003); the L1-L2 difference is attributed to patterns of expectation that are employed in the L1 but not (yet?) in the L2. There seems to exist a fine-tuned sensitivity to how accents are distributed in the native language, listeners expect an appropriate distribution and interpret it accordingly (Eefting, 1991). This pleads for accent placement as extremely important to L2 proficiency; the current results also suggest that accent and its relationship with other speech parameters has to be newly established in the L2 to fully reveal its benefits for efficient processing of speech. There is evidence that additional context facilitates processing of complex syntactic structures but that a surplus of information has no effect if the sentence construction is less challenging for the listener. The increased amount of information to be processed seems to impede better word recall, particularly in the L2. Altogether, it seems that focus marking devices and context can combine to form an advantageous alliance: a substantial benefit in processing efficiency is found when parameters of focus marking and sentence coherence are integrated. L2 research advocates the beneficial aspects of providing context for efficient L2 word learning (Lawson & Hogben, 1996). The current thesis promotes the view that a context which offers more semantic, prosodic, or lexical connections might compensate for the additional processing load that context constitutes for the listeners. A methodological consideration concerns the order in which language conditions are presented to listeners, i.e., L1-L2 or L2-L1. Findings suggest that presentation order could enforce a learning bias, with the performance in the second experiment being influenced by knowledge acquired in the first (see Akker & Cutler, 2003). To conclude this work: The results of the present study suggest that information structure is more accessible in the native language than it is in the nonnative language. There is, however, some evidence that L2 learners have an understanding of the significance of some information-structural parameters of focus marking. This has a beneficial effect on processing efficiency and recall accuracy; on the cognitive side it illustrates the benefits and also the need of a dynamic exchange of information-structural organization between L1 and L2. The findings of the current thesis encourage the view that an understanding of information structure can help the learner to discover and categorise forms and meanings of the L2. Information structure thus emerges as a valuable resource to advance proficiency in a second language.
Das Sprechen und Verstehen einer Fremdsprache (L2) stellt eine komplexe Leistung für einen Nicht-Muttersprachler dar. Kenntnisse und Fertigkeiten auf verschiedenen sprachlichen und außersprachlichen Ebenen wirken dabei zusammen, wie z.B. eine andere Grammatik, neue Lautbildungen in der Aussprache, der Aufbau von Wortschatz, und auch die Sensibilisierung für mögliche kulturell unterschiedliche Kommunikationsformen oder das Training kommunikativer Kompetenz. Eine wichtige Hilfe bei der muttersprachlichen wie der fremdsprachlichen Sprachverarbeitung bieten Mittel, mit denen sprachliche Information gegliedert wird, um sie verständlich zu machen. Die Informationsstruktur ermöglicht es, zum Beispiel den Fokus einer Äußerung zu markieren und damit Intentionen sprachlich zu vermitteln. In gesprochener Sprache sind es vor allem prosodische Mittel wie Satzakzent, die es dem Hörer ermöglichen, die wichtigen Informationen in der Äußerung herauszufinden. Aber auch durch die Verwendung unterschiedlicher grammatischer Strukturen oder durch besondere Wortwahl können Sprecher Satzteile markieren, die sie für besonders wichtig halten, und sie damit hervorheben. Wird die Informationsstruktur eines Satzes verletzt, indem zum Beispiel der Satzakzent auf ein eher unwichtiges Wort gelegt wird, kann der Gesprächspartner/die Gesprächspartnerin einen anderen Teil des Satzes als im Fokus stehend interpretieren als den vom Sprecher eigentlich intendierten Teil. Dies kann - in Kombination mit anderen Faktoren wie ungeschickter Wortwahl - zu Missverständnissen führen. Nun kann eine Sprache prosodische, syntaktische oder lexikalische Möglichkeiten der Markierung besitzen, die entweder in einer anderen Sprache nicht vorkommen, oder die andere Funktionen in Bezug auf die Interpretation von Äußerungen erfüllen, die in dieser Form in der jeweils anderen Sprache nicht existieren. Dies betrifft zum Beispiel Unterschiede zwischen Intonations- und Tonsprachen oder zwischen silbenzählenden und akzentzählenden Sprachen. Ruft der Fremdsprachenlerner die Strukturen sprachlicher Information in der Muttersprache (L1) ab und überträgt sie auf die Fremdsprache, kann dies bei gleicher informationsstruktureller Organisation der Sprache zu einer erfolgreichen Strategie des fremdsprachlichen Verstehens führen. Wird aber Informationsstruktur in der Fremdsprache mit anderen Mitteln als in der Muttersprache ausgedrückt, entsteht ein Spannungsfeld zwischen Verarbeitungsstrategien der Muttersprache und denen der Fremdsprache. Die vorliegende Arbeit befasst sich mit der Rolle informationsstruktureller Parameter in der muttersprachlichen und fremdsprachlichen Sprachverarbeitung. Es wird untersucht, wie Fremdsprachenlerner Fokusmarkierung in der Muttersprache (hier: Deutsch) und in der Fremdsprache (hier: Englisch) zu effizienter Sprachverarbeitung nutzen. Das Ziel ist eine tiefere Einsicht, wie sich Informationsstruktur in der Fremdsprache erschließt; die grundlegende Annahme ist dabei, dass ein Verständnis und eine Sensibilisierung für Informationsstruktur dem Fremdsprachenlerner hilft, Form und Bedeutung von Sprache zu erkennen. Eine solche Einsicht in Informationsstruktur unterstützt die Erweiterung und Festigung fremdsprachlicher Kompetenz. Die Frage nach dem Gebrauch von Informationsstruktur in einer Fremdsprache wird in drei experimentellen Studien untersucht, die sich auf jeweils eines der folgenden sprachlichen Mittel zur Fokusmarkierung konzentrieren: 1. Prosodische Mittel der Fokusmarkierung: Unterstützen Satzakzent und Wortposition im Satz eine bessere Worterkennung? 2. Syntaktische Mittel der Fokusmarkierung: Ermöglicht die Konstruktion eines Spaltsatzes (Englisch: cleft) eine schnellere Verarbeitung des fokussierten Elements im Satz als eine kanonische Wortstellung, und kann sich der Hörer auch zu einem späteren Zeitpunkt noch besser an ein syntaktisch markiertes als an ein unmarkiertes Element erinnern? 3. Lexikalische Mittel der Fokusmarkierung: Bewirken Fokuspartikel (hier: nur/sogar) eine schnellere Verarbeitung des fokussierten Elements, und kann sich der Hörer auch zu einem späteren Zeitpunkt noch besser an das fokussierte als an das nicht-fokussierte Element erinnern? Zusätzlich wird in Experiment 2 und in Experiment 3 untersucht, welchen Einfluss einleitende Fragen haben, die zur Fokusmarkierung eines Elements im Folgesatz dienen. Außerdem wird nachgegangen, welche Rolle es spielt, wenn ein syntaktisch oder lexikalisch fokussiertes Element einen Tonhöheakzent bekommt oder wenn dieser auf dem vorangegangenen Adjektiv realisiert wird. Die Probanden sind deutsche Muttersprachler, die Englisch als Fremdsprache gelernt haben. In den Experimenten werden den Testpersonen jeweils Sprachaufnahmen von deutschen Sätzen und Aufnahmen von parallel dazu konstruierten englischen Sätzen dargeboten. Als Kontrollgruppe für den englischen Teil der Experimente werden englische Muttersprachler getestet, um Referenzdaten für die Ergebnisse der Fremdsprachenlerner zu erhalten. Die Experimente sind als Perzeptionsexperimente konzipiert. Experiment 1 (prosodische Fokusmarkierung) untersucht Worterkennung in drei Bedingungen mitunterschiedlichem Fokus (weiter und enger Fokus, enger Fokus auf anderem Satzelement als dem Zielwort), und zwei Bedingungen mit künstlich durch splicing verändertem Sprachmaterial. In Experiment 2 (syntaktische Fokusmarkierung) und Experiment 3 (lexikalische Fokusmarkierung) wird im Hörexperiment als Methode phoneme monitoring angewandt, wobei die Reaktionszeiten zum Erkennen des fokussierten Worts (welches ein vorher spezifiziertes Phonem enthält) gemessen werden. Im Anschluss an den Hörteil wird in diesen zwei Experimenten außerdem ein Erinnerungstest durchgeführt, bei dem die fokussierten Elemente mit einem Multiple-Choice-Verfahren (4AFC) noch einmal abgefragt werden und die Anzahl der richtigen Antworten gewertet wird. Zu 1.: Prosodische Mittel der Fokusmarkierung Akzentuierung ist ein Mittel, um im Satz wichtige Information hervorzuheben (Bolinger, 1972), was zu einer besseren Wahrnehmung solch akzentuierter Information führt (siehe z.B. van Santen & Olive, 1990; Eefting, 1991). Akzentstruktur scheint jedoch schneller in der L1 als in der L2 verarbeitet zu werden (Akker & Cutler, 2003). Es wird daher angenommen, dass in der L1 eine Fokusmarkierung durch Tonhöheakzent zu besserer Worterkennung eines solchermaßen markierten Wortes führt. Akzentstruktur sollte sich auch in der L2 erschließen, wenn auch in geringerem Maß (L1 > L2). Insgesamt wird ein unterschiedlich starker Fokuseffekt je nach Fokusbedingung erwartet (enger Fokus > weiter Fokus). Die Ergebnisse von Experiment 1 bestätigen, dass Worte in der Muttersprache besser erkannt werden als in der Fremdsprache. Ein unterschiedlicher, als Satzakzent realisierter Fokus hilft allerdings den Probanden weder in der Muttersprache noch in der Fremdssprache, fokussierte Worte schneller zu erkennen. Dies könnte auf ungenügende akustische Unterschiede in der Realisierung der unterschiedlichen Fokuskonditionen in den Sprachaufnahmen zurückzuführen sein. Die Experimente mit synthetisch, durch splicing manipuliertem Sprachmaterial ergeben, dass die umgebende Satzprosodie eher zur Worterkennung beiträgt als die einzelne Akzentmarkierung des Wortes (Cutler, 1976). Für die Salienz der Wortposition im Satz postulierte VanPatten (2004) für fremdsprachliche Wahrnehmung die Reihenfolge von initialer > finaler > medialer Position. Akker und Cutler (2003) erwähnen für L1 und L2 einen Verarbeitungsvorteil von später im Satz auftretenden Worten gegenüber früher Auftretenden. Des weiteren fand Rast (2003) in einer L2-Produktionsstudie einen Vorteil der äußeren Satzpositionen gegenüber der medialen Position. Im vorliegenden Experiment werden die Sätze vor allem wegen der fremdsprachlichen Testbedingung in akzeptabler Länge gehalten, was Aussagen über die Position an den äußeren Satzenden ermöglicht, aber weniger deutliche Effekte für die medial Position erwarten lässt. Wortlänge wurde als Nebenfaktor mit in das Experiment aufgenommen ohne eigenständige Hypothesen dafür zu formulieren. In einer früheren L2 Studie zeigte Wortlänge nur in Abhängigkeit zur Position des Wortes im Satz einen Effekt (Rast, 2003; Rast & Dommergues, 2003). Die Ergebnisse von Experiment 1 zeigen, dass die Länge der Zielworte keine entscheidende Rolle für deren korrekte Erkennung spielt. Die Wortposition im Satz, und hier besonders die finale Position, trägt jedoch entscheidend zur korrekten Worterkennung im Deutschen bei. Ein ähnlicher Trend zeigt sich für die Worterkennung in der Fremdsprache Englisch (siehe Klein, 1984; Slobin, 1985). Das Lokalitätsprinzip von VanPatten (2004) mit dem Verarbeitungsvorteil von initial > final > medial kann nicht bestätigt werden, und die besondere Salienz der finalen Position wird mit Murdock (1962) als recency effect erklärt. Außerdem könnte die finale Position von der Konvention für die Integration neuer Information profitieren: bekannte Information wird vor neuer Information genannt (Haviland & Clark, 1974). Hörer handeln nach dieser üblichen Diskursstruktur und richten ihre Aufmerksamkeit auf Information, die in finaler Position genannt wird. Zu 2.: Syntaktische Mittel der Fokusmarkierung Die Abweichung von kanonischer Satzstruktur lenkt die Aufmerksamkeit auf bestimmte Elemente im Satz, und der Spaltsatz ist in vielen Sprachen eine bekannte Art der Fokussierung (Lambrecht, 2001). Die Oberflächenstruktur eines Satzes beeinflusst seine Verarbeitung (Foss & Lynch, 1969; Langford & Holmes, 1979) und in Experiment 2 stehen zwei Hypothesen gegenüber: Der fokussierende Effekt von Spaltsätzen könnte einen Verarbeitungsvorteil bewirken. Andererseits sind Spaltsätze im Deutschen seltener und weniger gebräuchlich als im Englischen (Ahlemeyer & Kohlhof, 1999; Doherty, 1999; E. Klein, 1988); die syntaktische Komplexität von Spaltsätzen und die Erfahrung der Muttersprache könnten einem Verarbeitungsvorteil in Deutsch L1 und Englisch L2 entgegenwirken. Die Ergebnisse von Experiment 2 zeigen, dass der Spaltsatz ein effektives Mittel der Fokusmarkierung im Deutschen ist. Dies wird auf die geringe strukturelle Markiertheit des Ersatz-Subjekts ‚es’ zurückgeführt, da es an kanonischer, initialer Stelle steht. Die Prominenz dieses Subjekts setzt das nachfolgende Subjekt-Element in Fokus und verleiht ihm Subjekt-Prominenz. Der verarbeitungsfördernde Effekt von Spaltsätzen wird noch erhöht, wenn Oberflächenstruktur (Spaltsatz) und Satzzusammenhang (Kontext) integriert werden. Der Spaltsatz wird jedoch nicht in der Fremdsprache als ein effektives Mittel der Fokusmarkierung genutzt. Englische Muttersprachler nutzen den Fokuseffekt des Spaltsatzes zur schnellen Worterkennung, aber dieses informationsstrukturelle Mittel der L2 wird nicht von Fremdsprachenlernern erkannt und verwertet. Dies wird als Lernerproblem interpretiert: linguistische Strukturen der Muttersprache werden nicht adäquat nach informationsstrukturellen Prinzipien in der Fremdsprache angewandt. Der Spaltsatz trägt weder im Deutschen noch im Englischen zu einer besseren Erinnerungsleistung bei. Das kann zum einen an der starken phonologischen Ähnlichkeit der im Test angebotenen Antwortoptionen liegen (Conrad & Hull, 1964); zum anderen kann es mit der Zeitspanne zusammenhängen, die zwischen Hörexperiment und Erinnerungstest liegen und die die Erinnerung an ein bestimmtes Wort zu sehr erschwert (Birch & Garnsey, 1995; McCoon et.al., 1993). Zu 3.: Lexikalische Mittel der Fokusmarkierung Fokuspartikel sind Exponenten von Fokusstruktur und sie markieren Satzelemente (König, 1991; Paterson et al., 1999). Die untersuchten Fokuspartikel evozieren Kontrast und Alternativmengen zu dem fokussierten Element, was Interpretationen von Kontext bewirkt (Ni et al., 1996; Liversedge et al., 2002). Von daher wird keine schnellere Verarbeitung von fokussierten Worten erwartet. Ihre förderliche Eigenschaft zeigt sich jedoch in der Erinnerungsleistung, da sich dieser Prozess auf andere Erschließungsmechanismen zu stützen scheint: es wird erwartet, dass der bevorzugte Gebrauch von lexikalischen Mitteln zur Fokusmarkierung im Deutschen (König, 1991; Ahlemeyer & Kohlhof, 1999) sich positiv auf die Erinnerung von fokussierten Worten auswirkt. Die Fokuspartikel nur und sogar in Experiment 3 erweisen sich in der Experimentreihe als schwächste Exponenten von Fokusmarkierung: Weder im Deutschen noch in Englischen als Fremdsprache noch in der englischen Kontrollgruppe bewirken diese Fokuspartikel eine schnellere Verarbeitung des fokussierten Elements. Dies erklärt sich durch die Eigenschaft von Fokuspartikeln, eine Menge an Alternativen zu evozieren und dadurch beim Hörer komplexe Diskursmodelle anzuregen, die sowohl das Element in Fokus als auch Alternativen dazu beinhalten (siehe Ni et al., 1996; Liversedge et al., 2002). Verarbeitung und Interpretation der Fokusstruktur benötigen dann einen erhöhten Zeitaufwand. Im Erinnerungstest kommt der Fokuseffekt nur in der fremdsprachlichen Testbedingung zum Tragen: Werden Lerner hinsichtlich mit hinsichtlich ihrer L2-Fertigkeit anspruchsvollen Situationen konfrontiert, wird Fokusstruktur zu einer besseren Repräsentation in der Erinnerung genutzt. Übergreifend zeigt sich aus Experiment 2 und Experiment 3, dass ein zusätzlicher Satzakzent in Sätzen mit syntaktischer oder lexikalischer Fokusmarkierung in muttersprachlichem Deutsch und Englisch genutzt wird, aber in der Fremdsprache nicht gleichermaßen effektiv verarbeitet wird. Ein bedeutender Parameter wie Tonhöheakzent wird in der Fremdsprache scheinbar weniger genutzt, wenn gleichzeitig andere Mittel der Markierung auftreten. Vor allem deutet dieser Effekt jedoch auf eine weitaus differenziertere Wahrnehmung und Interpretation von Tonhöheakzent in der Muttersprache hin. Des weiteren scheint die Reihenfolge, in der die Testsprachen den Probanden angeboten werden (L1-L2,oder L2-L1) von Bedeutung zu sein, da ein Lerneffekt aus der ersten Testsprache die Leistung in der zweiten Testsprache beeinflussen kann. Dies erschwert die Erhebung vergleichbarer Daten für zwei Sprachen von derselben Probandengruppe (siehe Akker & Cutler, 2003). Im Hinblick auf die Auswirkungen von Kontext auf die Wortverarbeitung weisen die Ergebnisse darauf hin, dass vorangestellte Fragen dem Fremdsprachenlerner nur bedingt Hilfe bei der zügigen Verarbeitung von z.B. schwierigeren Satzkonstruktionen bieten. Zusätzlicher Kontext scheint außerdem die Erinnerungsleistung zu erschweren, vor allem in der Fremdsprache. Sowohl in der Fremdsprachenforschung als auch in der Fremdsprachendidaktik hat die Einbettung in einen Kontext bei dem Erlernen von Worten eine große Bedeutung (Lawson & Hogben, 1996). Es wird dahingehend argumentiert, dass eine Form von Kontext, die mehr semantische, prosodische oder lexikalische Verbindungen schafft, den zusätzlichen Verarbeitungsaufwand kompensieren müsste. Die Ergebnisse der vorliegenden Arbeit weisen darauf hin, dass sich Informationsstruktur eher in der Muttersprache als in der Fremdsprache erschließt. Einzelne informationsstrukturelle Parameter werden jedoch sehr wohl von den Fremdsprachenlernern erfolgreich ausgewertet, was sich in einer schnelleren und nachhaltigeren sprachlichen Verarbeitung äußert. Auf der kognitiven Ebene zeigt die vorliegende Arbeit die vorteilhafte Wirkung auf, wenn Informationsstruktur von Mutter- und Fremdsprache in dynamischem Austausch stehen. Die Ergebnisse bestärken die Annahme, dass ein Verständnis von Informationsstruktur dem Fremdsprachenlerner helfen kann, Form und Bedeutung der Fremdsprache zu erkennen. Informationsstruktur erweist sich als potentiell wertvolle Ressource in der Entwicklung und Stärkung fremdsprachlicher Kompetenz.

The primary focus of this thesis was to find out what makes workable topic sentences different from inadequate ones. A group of topic sentences was collected from the author's eight grade students and reviewed.

Hungarian 'focus position' is typically thought of as a central example of a 'discourse configurational' phenomenon, since it not only involves the expression of information-structural (or 'discourse semantic') meaning through the manipulation of word order but also interacts syntactically with other elements of the sentence. In this thesis, I argue that this kind of phenomenon highlights fundamental theoretical problems with conventional assumptions about the relationships between linguistic form and different kinds of meaning and demonstrate that these problems have led to empirical inadequacies in the syntactic analysis of Hungarian. I propose an alternative analysis that makes use of a dynamic, incremental parsing-based approach to grammar, which in turn allows for the influence of inferential pragmatic operations (investigated in terms of Relevance Theory) at all stages in the process of interpreting linguistic form. This opens up possibilities of structural and interpretive underspecification that allow for the interpretation of the 'focus position' to be unified with the information-structural interpretation of sentences that do not contain a syntactically focused expression. This analysis explains the interaction of syntactic foci with other pre-verbal items. The burden of explanation is thus shifted away from specialised, abstract syntactic representations and onto independently necessary aspects of cognitive organisation. The use of 'discourse semantic' primitives---whether in terms of focus or exhaustivity---to encode the effects of the 'focus position' is shown to be both theoretically problematic and empirically inadequate. The information-structural meanings associated with the position must be viewed not as the input to interpretive processes but instead as the result of inferential processes performed in context. Reanalysis of the syntactic evidence shows the relevant position to be not merely pre-verbal, but underlyingly pre-tense, showing that the unmarked position of the main verb is essentially the same as that of syntactically focused expressions. This leads to an analysis whereby both 'neutral', topic-comment readings and cases of narrow focus emerge from inferences over a common interpretive procedure. This procedure is identified as 'main predication': the point in the parsing of a sentence at which the application of a single predicate effects the conversion of a mere description of an event into a truth-conditional assertion. Main predication is represented using neo-Davidsonian, event-based semantics (the effect of the main predicate being equivalent to that of the application of an existential quantifier over an event variable in the neo-Davidsonian approach) and made dynamic by the use of the epsilon calculus. This analysis predicts the postposing of any (otherwise pre-tense) 'verbal modifier' (VM) in the presence of a syntactic focus and the apparent information-structural ambiguity of VMs when they are pre-tense. Certain constraints on the distribution of quantifiers are also predicted, one such constraint being adequately characterisable only within a semantically underspecified, procedural account. The behaviour of the negative particle "nem" is also given a maximally simple explanation. The apparently variable scope of the negative operator is explicable without ad hoc syntactic mechanisms: the apparent wide scope reading associated with 'sentential' negation follows inferentially from narrow scope negation of temporal information. The syntactic positions of negation are predictable on this basis. In addition, the assumption of consistent narrow scope negation correctly predicts that VMs must postpose or receive a narrow focus reading in the presence of "nem".

Idag finns det begränsade teorier som behandlar det postmoderna konsumtionssamhället utifrån ett medie- och kommunikationsvetenskaligt perspektiv. Syftet med examensarbetet är att undersöka spänningsfältet mellan ICA och högskolestudenter i ett konsumtionssamhälle genom att granska varumärkeskommunikationens betydelse på digitala plattformar. Materialinsamlingen är genomförd i form av kvalitativa intervjuer, med medarbetare på ICA, samt fokusgrupper med studenter. Med studien vill vi ge en inblick i hur kommunikationsprocesser strategiskt utformas för att nå rätt målgrupp, hur relationer vårdas och vad en god dialog innebär och har för framtida betydelser. Studien har analyserat det spänningsfält som ligger i grund till valet av konsumtion gällande matvaruhandel som högskolestudent. Studiens slutsatser visar på att det är en rad olika faktorer som är bidragande till att bygga upp en stark relation med ett företag.
Today there is limited theories considering reasearch on the postmodern consumtion society from a media and communication perspective. The purpose with this thesis is to investigate the tension between ICA and Univeristy students in a consumption society through analysis brandbuilding communications meaning on digital platforms. The material to the thesis is collected by qualitative interviews, both with employees at ICA and focus groups with university students. With this thesis we want to give an insight of how communication processes strategically is designed to reach their target group, how relationships are nurtured and what a good dialogue means for future brand building. The study has analyzed the tension of what includes the choice of consumption when it comes to retail business from university students perspective. The conclusions indicate how there are a number of factors that are contributing to build a strong relationship with an organization.

This article presents a situation description production experiment investigating the interaction between syntax and information structure in Akan, a tone language that belongs to the Kwa branch of the Niger- Congo family spoken in Ghana. Information structure was elicited via context questions that put the object in narrow informational focus or narrow corrective focus while controlling for the tonal structure of the target word. Contrary to the prediction that corrective focus is marked by fronting and morphological marking of the focused constituent the data suggest that the in-situ strategy is the preferred one.

Thesis (DLitt (Ancient Studies)) -- University of Stellenbosch, 2004.
The purpose of this study is to investigate the information structure of Biblical Hebrew narrative, and develop accounts of topic and focus in Biblical Hebrew, respectively. Both topic and focus categories have been determined for Biblical Hebrew (cf. chapters 3 and 5), as well as the information structure strategies that these categories can fulfill in discourse. For topic categories, four different categories of information structure topics in Biblical Hebrew have been distinguished. These are 1. Primary topics 2. Secondary topics 3. Tail topics 4. Topic frames In addition, associated with topics are topic contrastiveness as well as deictic orientations or text-world frames. All these categories, when present, are part of the topical framework of a discourse. For focus structure categories, three different types of focus structure in Biblical Hebrew have been distinguished. These are: 1. Predicate focus 2. Sentence focus 3. Argument focus Again, like in the case of topics, contrastiveness is associated with focus structures. The strategies of information structure topics and focus structures in theme developments were distinguished. For topics, the following information structure strategies or functions stand out: 1. Topic continuity 2. Topic promotion 3. Topic shift 4. Topic deictic text-world framing 5. Topic contrasting For focus structures, the following information structure strategies or functions stand out: 1. Commenting on topics 2. Presenting unidentifiable or inactive participants 3. Reporting, that is, event-reporting and state-reporting of out-of-the-blue, unexpected, discourse new events or states. Some reporting re-directs the theme, other reporting, especially that of states, supports the theme. 4. Identifying referents, either as identifying contrastive, unexpected referents or deictic text-world frames, or by announcing theme macrowords. Contrastiveness is a pragmatic overlay in the case of many focus constituents, especially presupposed information that is focused on. In other words, the three focus structures are used in certain strategies: 1. Predicate focus structures are used for commenting in topic-comment articulations. 2. Sentence focus structures are used for presentational sentences, and for themeredirecting and theme-supporting, event-reporting and state-reporting sentences. The word-order is generally marked. 3. Argument focus is used for unexpected, contrastive identification, and for the announcement of theme macrowords. The word-order is marked, similar to sentence focus structures. All the topic and focus categories and their respective information structure strategies have a link with the theme of a discourse. Theme has been defined in this study as the developing and coherent core or thread of a discourse in the mind of the speaker-author and hearerreader, functioning as the prominent macrostructure of the discourse (chapter 7 (7.4.4)). The information structure with its topics and focus structures and its strategies, can be used as a tool to identify and analyse themes. These categories and strategies together are called theme traces when they occur in marked syntactic constructions or in other prominence configurations like relexicalisation, end-weight, and repetition of macrowords. Theme traces are defined with the following wording: A theme trace is a clue in the surface form of a discourse, viewed from the perspective of information structure, that points to the cognitive macrostructure or theme of a text. This clue is in the form of (1) a marked syntactical configuration, be it marked word-order or marked in the sense of explicit and seemingly “redundant”, all signaling some thematic sequencing strategy, or (2) some recurring concept(s) signaling some prominence and coherence (chapter 7 (7.5.4)). By investigating these theme traces, the analyst will have a tool to study themes in discourse. This theme traces tool will assist in the demarcation of the sections in the developing theme of a text by means of a variety of boundary features, and once these thematic units have been established, the study of the topic framework together with the focus content will yield a verifiable understanding of the macrostructure of a text in Biblical Hebrew. Global themes are contrasted with local themes. Global themes occur in the higher-level thematic groupings, like whole narratives and smaller episodes within the narratives. Within the episodes are sub-units like scenes and thematic paragraphs, the smallest thematic unit. In scenes and thematic paragraphs, local themes occur. Between the different thematic units, a variety of theme sequential strategies occur. Theme shifting is a wider information structure strategy that is in operation in discourse. For instance, topic promotion, topic shift, and topic text-world framing are all cases of theme shifting. To study the theme of a narrative discourse from the perspective of the information structure, four steps of a theme-tracing model have been suggested, and applied to Genesis 17.

This dissertation consists of two essays: one looks at the relation between firm focus and hedging in the REIT industry, and the other compares bank board structures in China and the US. The first essay presented in Chapter 2 examines the relation between corporate hedging and firm focus in the REIT industry by using a sample of REITs in 2005 and in 2007. We find 46.41% utilization rate in 2005 and 43.41% in 2007. Consistent with our hypothesis, we find that, relative to diversified firms, focused firms are more likely to engage in hedging. Focused firms also tend to be involved in greater amount of hedging. We also document a negative relation between hedging and transparency, although the evidence is not overwhelming. Consistent with previous literature, there is a strong firm size effect. The second essay presented in Chapter 3 examines the relation between bank performance and board structure by using a sample of 74 US banks and 53 Chinese banks for the period 2002 to 2006. Indeed, the empirical relation between board structure and performance is virtually non-existing in China. In particular, for the US sample, the board size is found to be significantly and negatively correlated with ROA, but a larger board also tends to be associated with lower costs. For Chinese banks, the evidence indicates that governance variables are not significantly correlated with performances with the exception of block ownership: there is strong evidence that the relation between block ownership and bank performance is negative. Additionally, we find substantial differences in board structure between the two countries; in particular the average board size and the proportion of outside directors for US banks are almost twice of those in China.

The present work is concerned with the advancement of the knowledge of structural optimization in engineering design while focusing on efficient and easy to use ways of setting-up the required automated processes as well as the problems arising from it. Three industry examples are considered. In the first example a software tool that serves as a hands-on decision guidance for many occurring design situations for structured wall PE pipes is developed. In order to avoid licensing fees only public domain software or in-house code are used. It offers the efficient and automated simulation of the ringstiffness test as well as the most common pipe installation scenarios. In addition, an optimization feature is implemented for the design of optimum pipe profiles with regards to the ringstiffness test. In the second example a framework for the optimum design of carbon fibre mountain bike frames is developed. An extensively parameterized and automated simulation model is created that allows for varying tube shapes, paths and laminate ply thicknesses as well as joint locations. For improved efficiency a decomposition approach has been employed that decomposes the original optimization problem into a size optimization sub problem and a shape optimization top level problem. The former is solved by the built-in optimization tool in OptiStruct and the latter by means of surrogate based optimization where each experiment in the DoE is a full size optimization. The third example is concerned with the optimum design of a blade for a novel vertical axis wind turbine. A design approach similar to those with horizontal axes is chosen. The altered design requirements are accounted for by creating a parameterized simulation model and performing size optimization runs for 32 models with different material settings and shear web locations where the model creation process has been automated.

As the offshore industry operates on deeper seas, subsea technology becomes more and more important. As a consequence of this, marine lifting operations of subsea equipment has become very common. Prior to such an operation it is necessary to define the limiting sea states. Many methods for doing this are very conservative and will underestimate the operational conditions. Defining the limiting sea states can be done by numerical simulations using commercial software. However this may be very time consuming.The focus on this report is put on modeling lifting of objects through the splash zone using the computer program USFOS. Dynamic analyses of the lowering were performed. Even though this program is not initially intended for such use, it has features that makes such analyses possible. In this report the applicability of USFOS for such use will be studied.Three main models have been considered. The first of them was a very simple model of a horizontal pipe that was lowered into the sea. The wire forces was considered, and it was studied how different input parameters affected the results.The input parameters for this simple model was taken further by simulating the lowering of a subsea spool through the splash zone. This model consisted of a subsea spool, a spreader bar, 4 slings and a lifting wire. Both flat sea and regular waves were simulated. For the regular wave cases, the forces in the wires and slings was studied. This showed that slack in the lifting wire or slings would occur in 3 out of 4 sea states. Further the elastic utilization of the structure was evaluated according to API-RP-2A-WSD, which is implemented in USFOS. In this study it was found that the utilization of the structure increases as the wave height in- creases. However it is questioned how accurately USFOS calculates the forces in the splash zone for the most extreme cases of regular waves.The last and most realistic model that was considered in this thesis, was lowering of the subsea spool into irregular waves. These waves were simulated according to the JONSWAP wave spectrum. Different sea states were modeled by changing the value of significant wave height and peak period. In addition the top end of the lifting wire was connected to the moving crane tip of a vessel. The vessel motions were defined by RAO functions that were included in the input files. For all of the sea states that were modeled, the minimum wire forces were found. This resulted in an overview of which sea states that would give slack in lifting wire or slings. The trend showed that as the significant wave height was increased, the minimum forces in the wires and slings decreased.From the work that was carried out it was concluded that USFOS can be used for modeling simple marine lifting operations. The program calculates the equilibrium forces in the top end of the wire element in the right way. But its use for this purpose is limited. If damping is introduced to the system, the force in the wire element will decrease due to this, and thus give an error in the equilibrium value. Further the special beam formulation used to model the elongating wire element, requires that a dynamic analysis is performed. Thus there will be oscillations in the system due to initiation of gravity and self weight. Therefore this initial phase should be neglected when considering the structural response.One of the advantages of the program for this type of use is its ability to evaluate non-linear structural behavior, and calculate elastic utilization of the structure. There are, however, uncertainties in the elastic utilization calculations when it comes to definitions of parameters such as buckling length.

The purpose of this thesis is to elucidate the connection between the institution of the French educational system and its effects on the new French population (predominately children of Algerian immigrants). This thesis makes the connection between the high school or lycee and the social barriers its "minority" students experience within the school system. By focusing on two broad dimensions of the French school system; its structure and values, this thesis argues that the system produces inequalities amongst its students primarily because of its failure to recognise the multiethnic classroom. By contextualising colonial France in Algeria, this thesis shows the connection between France's unique history and its educational institution as it relates to present day French culture. This thesis shows that the French educational system is so well established in its secular traditions that it no longer meets the needs of its students and consequently produces and reproduces exclusion and otherness.

This thesis examines the word order of Biblical Hebrew from the perspective of Information Structure, specifically in the articulation of a theory of focus structure. To focus is to mark an item as informationally prominent. The thesis proposes that 1) in Biblical Hebrew focus is expressed by word order and by pitch prominence; 2) the clause-initial position is marked for focus for both nominal and verbal clauses; 3) and Biblical Hebrew has three major clause types: (P represents predicate including verb; X represents an argument, a cover-ten-n for non-predicate elements. Capitals mark. focus indicated by word order and/or high pitch. ) a) Px Predicate-Focus Structure adds new information preferably to an active or accessible referent( commenting); b) Xp Argument-Focus Structure relates X with the missing argument of a presupposed proposition (identification); c) XP Clause-Focus Structure indicates that the clause has pragmatic implication(s) other than commenting and identification. These implications include (information level): activation of inactive referents; introduction of a brand-new referent; (inter-clausal level): exclamation/proclamation, contrast of the whole proposition, circumstantial clause; (text-unit level): onset functions, background information, climax and closure; and finally parallel construction and list structure. Most of these implications show non-sequentiality to or independence of the preceding texts informationally, temporally or logically. The thesis also explores the relationship between emphasis, intensification (loud voice), contrast, focus and word order. Emphasis is achieved through various means which include intensification (loud voice) and implicit contrast. Contrast is created not by fronting but only by the presence of the contrastive members (either explicit or implicit). Contrast belongs to contextual implicatures not to syntax. Intensification belongs to prosody not to syntax. Only focused constituents are contrasted or intensified. Detection of intensification (loud voice) in written texts is highly subjective.

L'objectif général de cette thèse est d'identifier les variants causaux ou, à défaut, un ensemble de marqueurs prédictifs - qui présentent un déséquilibre de liaison élevé avec les variants causaux - pour la fertilité des vaches laitières. Nous avons abordé cet objectif général dans cinq articles: (i) décrit une approche systématique de cartographie des variants létaux récessifs chez les bovins Normands français basée sur la recherche de déficit en haplotypes homozygotes (HHD). Cette étude montre l’influence de la taille de l’échantillon, de la qualité des génotypes, de la qualité du phasage des génotypes en haplotypes et de l’imputation, de l’âge de l’haplotype et enfin, de la définition des seuils de signification prenant en compte les tests multiples, sur la découverte et la reproductibilité des résultats de HHD. Elle illustre également l’importance de la cartographie fine avec les données de généalogie et de séquence de génome entier (WGS), l’annotation intégrative (entre espèces) pour hiérarchiser les mutations candidates et, enfin, le génotypage à grande échelle de la mutation candidate, pour valider ou invalider les mutations initiales. (ii) décrit une cartographie à haute résolution de grandes délétions chromosomiques de séquences du génome dans une population de 175 animaux appartenant à trois races laitières nordiques. Cette étude utilise trois approches différentes pour valider les résultats de la cartographie. Le chapitre décrit les propriétés génétiques des populations et l’importance fonctionnelle des délétions identifiées. (iii) traite de trois questions liées à l’imputation de variants structuraux, ici de délétions chromosomiques importantes: la disponibilité des génotypes de délétion, la taille du panel de référence d'haplotypes et, enfin, l’imputation elle-même. Pour aborder les deux premières questions, cette étude décrit une approche basée sur un modèle de mélange gaussien dans laquelle les données de profondeur de lecture provenant de fichiers au format VCF (variant call format) sont utilisées pour génotyper un locus de délétion connu, en l’absence d’information sur la séquence brute. Enfin, il présente un pipeline pour l'imputation conjointe de variants WGS et de grandes délétions chromosomiques. (iv) décrit des études d'association pangénomiques de la fertilité femelle dans trois races de bovins laitiers nordiques à l'aide de variants WGS imputés et de grandes délétions chromosomiques. Cette étude concerne huit caractères de fertilité et utilise des analyses d'association mono-marqueur, conditionnelles et conjointes. Cette étude montre qu’une surestimation, ou « inflation », des statistiques de test peut être observée même après correction pour la stratification de la population à l'aide de composantes principales génomiques et pour les structures familiales à l'aide de matrices de relations génomiques. Ce biais était connu pour les caractères très polygéniques. Enfin, cette étude présente plusieurs locus de traits quantitatifs (QTL) nouveaux et confirme plusieurs autres déjà connus. Elle souligne également l’importance d’inclure les grandes délétions (imputées) pour la cartographie par association des caractères de fertilité. (v) décrit la prédiction des valeurs génomiques de fertilité (ou indice de fertilité) à l'aide de génotypes à puces SNP, de QTL sélectionnés et de délétions chromosomiques importantes. En utilisant la méthode de meilleure prédiction linéaire sans biais génomique (GBLUP) avec une ou plusieurs matrices de relations génomiques dérivées d'un ensemble de marqueurs sélectionnés, cette étude rapporte une précision de prédiction améliorée. Cette étude met également en évidence l’influence de la sélection des marqueurs les plus prédictifs, en particulier pour une race ayant une population d’apprentissage réduite, sur la précision des prédictions génomiques. Enfin, les résultats démontrent que les grandes délétions ont en général un pouvoir prédictif élevé
The overall aim of this PhD thesis is to identify causal variants for recessive lethal mutations and select a set of predictive markers that are in high linkage-disequilibrium with the causal variants for female fertility in dairy cattle. We addressed this broad aim under five articles: (i) describes a systematic approach of mapping recessive lethals in French Normande cattle using homozygous haplotype deficiency (HHD). This study shows the influence of sample size, quality of genotypes, quality of (genotype) phasing and imputation, age of haplotype (of interest), and last but not the least, multiple testing corrections, on discovery and replicability of HHD results. It also illustrates the importance of fine-mapping with pedigree and whole-genome sequence (WGS) data, (cross-species) integrative annotation to prioritize candidate mutation, and finally, large-scale genotyping of the candidate mutation, to validate or invalidate initial results. (ii) describes a high-resolution population-scale mapping of large chromosomal deletions from whole-genome sequences of 175 animals from three Nordic dairy breeds. This study employs three different approaches to validate identified deletions. Next, it describes population genetic properties and functional importance of these deletions. (iii) deals with three main issues related to imputation of structural variants, in this case, large chromosomal deletions, e.g. availability of deletion genotypes, size of haplotype reference panel, and finally, imputation itself. To address the first two issues, this study describes a Gaussian mixture model-based approach where read-depth data from the variant call format (VCF) file is used to genotype a known deletion locus, without the need for raw sequence (BAM) file. Finally, it presents a pipeline for joint imputation of WGS variants along with large chromosomal deletions. (iv) describes genome-wide association studies for female fertility in three Nordic dairy cattle breeds using imputed WGS variants including large chromosomal deletions. This study is based on the analyses of eight fertility related traits using single-marker association, conditional and joint analyses. This study illustrates that inflation in association test-statistics could be seen even after correcting for population stratification using (genomic) principal components, and relatedness among the samples using genomic relationship matrices; however, this was known for traits with strong polygenic effects, among other factors. Finally, mapping of several new quantitative trait loci (QTL), along with the previously known ones, are reported in this study. This study also highlights the importance of including (imputed) large deletions for association mapping of fertility traits. (v) describes prediction of genomic breeding values for fertility using SNP array-chip genotypes, selected QTL and large chromosomal deletion. Using genomic best linear unbiased prediction (GBLUP) method with one or several genomic-relationship matrices derived from a set of selected markers, this study reports higher prediction accuracy compared with previous report. This study also highlights the influence of selecting markers with best predictability, especially for a breed with small training population, in accuracy of genomic prediction. The results demonstrate that large deletions in general have a high predictive performance

Adrenal gland function is mediated through secreted hormones, and these hormones play a vital role in the autonomic and HPA-axis mediated stress response. Stress is a complex phenomenon, and the genetic underpinnings of it can be approached using a quantitative trait locus (QTL) analysis. This method has been used to investigate genomic regions associated with variation in complex phenotypes in the mouse CNS and anatomical variation in organ weights. However, it has not been previously used to explore the structure of the adrenal gland. In this study, we used QTL analyses to identify candidate genes underlying adrenal weight and adrenal cortical zones and medulla widths. We used 64 BXD recombinant inbred (RI) strains of mice (n = 571) and 2 parental strains (C57BL/6J and DBA/2J; n = 20) to measure adrenal weights. These 64 BXD RI strains and the progenitor strains were then examined to measure adrenal zone widths. We performed QTL linkage analysis (with WebQTL) to identify QTLs associated with adrenal weight. We found significant QTLs on chromosome 3 for females and Chr 4 for males and suggestive QTLs on Chrs 1, 3, 10, and 14 for females and Chrs 2, 4, 10, 17, and X for males. We identified a significant QTL on Chr 10 and a suggestive QTL on Chr 13 for male adrenal total width. For male adrenal medulla width, we found a significant QTL on Chr 5 and a suggestive QTL on Chr 1. In addition, we identified significant QTLs on Chrs 10 and 14 for male X-zone width. Finally, there are 114 genes that mapped within the significant QTL intervals, of which we identified 5 candidate genes associated with adrenal structure and/or function. In summary, this study is an important first step for detecting genetic factors influencing the structure of the adrenal component of the HPA-axis using QTL analysis, which may relate to adrenal function and provide further insights into elucidating genes critical for stress-related phenotypes.