Im Rahmen eines Dissertationsvorhabens am Albrecht Daniel Thaer-Institut für Agrar- und Gartenbauwissenschaften der Humboldt-Universität zu Berlin wurde die „Entwicklung beruflicher Handlungskompetenz in der gärtnerischen Berufsausbildung durch die Anwendung des Lernfeldkonzepts“ untersucht und in einem pädagogischen Unterrichtsexperiment an gartenbaulichen Berufsschulen in sechs Bundesländern durchgeführt. Damit eine durchgängige Kompetenz- und Outcome-Orientierung Berücksichtigung finden kann, erweiterte der Autor die Untersuchung zur Kompetenzentwicklung um die Aspekte Kompetenzmessung und Kompetenzbewertung. Basierend auf einer Arbeitsprozessanalyse zum Ausbildungsberuf Gärtner der Fachrichtung Garten- und Landschaftsbau wurden im Dialog mit dem Berufsstand Kriterien und Indikatoren beruflicher Handlungskompetenz von Landschaftsgärtnern definiert sowie berufliche Handlungsfelder (Tätigkeitsfelder) gebildet, aus denen Lernfelder abgeleitet und ein lernfeldstrukturierten Rahmenlehrplan für den berufsbezogenen Unterricht der Berufsschule konzipiert werden konnte. So war es möglich, handlungs- und kompetenzorientierte Lernaufgaben für den Berufsschulunterricht zu entwickeln, die sich an berufstypischen Arbeitssituationen orientieren. Durch die Bearbeitung dieser Lernaufgaben wurden bei den Versuchspersonen didaktisch begründete Lernhandlungen ausgelöst und angestrebte Kompetenzen entwickelt, die mittels eines standardisierten Bewertungsbogens durch Beobachtung (Fremdeinschätzung) und Befragung (Selbsteinschätzung) gemessen werden konnten. Die Bewertung ausgeprägter Kompetenzen erfolgte durch den Einsatz eines outcome-orientierten Abschlusstests „Virtuelle Kleinbaustelle“. Diese schriftliche Mehrfach-Situations-Aufgabe wurde nach Maßgabe eines systematischen Bewertungsrahmens unter Berücksichtigung der Anschlussfähigkeit an DQR und EQR ausgewertet, sodass auf den Erwerb beruflicher Handlungskompetenz in der Ausbildung zum Landschaftsgärtner geschlossen werden kann. / Within a PhD project at the Albrecht Daniel Thaer-Institute for Agricultural and Horticultural Sciences at Humboldt-Universität zu Berlin the “development of vocational action competencies regarding the training of gardeners based on the application of the concept of domains of learning” was studied in a teaching experiment at six horticultural vocational schools in six German states. To allow for a consistent focus on competencies and outcome, aspects of competencies measurement and competencies evaluation were included in the study of competency development. Based on an analysis of work processes in occupational training of landscape gardeners, criteria and indicators of vocational action competencies in this field were defined in collaboration with the gardening profession; furthermore, vocational fields of activities were developed. On their basis “domains of learning” (“Lernfelder”) could be derived and accordingly a framework curriculum could be developed for vocational lessons at vocational schools. In this manner it was possible to develop activity- and competence oriented learning tasks for lessons at vocational schools. These learning tasks focus on typical work situations in landscape gardening. When the test persons performed these learning tasks, didactically meaningful learning activities were initiated and the test persons developed the desired competencies. These competencies were measured by means of a standardized evaluation form by observation (external evaluation) and questioning (self-evaluation). The evaluation of profound competencies was carried out using an outcome-oriented final examination tool “small virtual building site”. This written multi-situation task was evaluated according to a systematic evaluation frame under consideration of compatibility with GQF and EQF, so that conclusions can be drawn regarding the acquisition of vocational action competencies during the training for landscape gardener.

Diese Dissertation umfasst vier Essays, die einen Beitrag zur empirischen Literatur über die Determinanten der Veränderungen in der Beschäftigungs- und Lohnstruktur in Deutschland leisten. Im ersten Aufsatz wird der Zusammenhang zwischen technologischem Wandel und Wachstum von Beschäftigung am unteren Ende der Lohnverteilung untersucht. Eine ökonometrische Analyse zeigt, dass technologischer Wandel die Arbeitsnachfrage von routine-intensiven Berufen hin zu Berufen verschiebt, die niedrig entlohnte manuelle Tätigkeiten erfordern und sich nicht zur Substitution durch Informationstechnologien eignen. Damit trägt er zur Polarisierung der Beschäftigungsstrukturen bei. Der zweite Aufsatz untersucht die Rolle von technologischem Wandel in der Entstehung räumlicher Lohnungleichheiten. Es wird gezeigt, dass technologischer Wandel zu einem Zuwachs in der Entlohnung von nicht-routine kognitiven Tätigkeiten und zu einem Rückgang der Entlohnung für routine und nicht-routine manuelle Tätigkeiten führte und damit zur Vergrößerung der inter- und intra-regionalen Lohnungleichheit beitrug. Der dritte Aufsatz untersucht die Beschäftigungswirkung von Produktmarktderegulierung am Beispiel der Liberalisierung der Ladenschlussgesetze, wobei regionale Variation in der Gesetzgebung zur Identifikation des kausalen Effekts dient. Es wird gezeigt, dass die Beschäftigung im Einzelhandel durch die Deregulierung um etwa 19.000 vollzeitäquivalente Stellen zurückging. Dem zugrunde liegt ein signifikanter Rückgang an kleinen Unternehmen, die personalintensiver arbeiten als große Unternehmen. Im vierten Aufsatz werden die Auswirkungen von öffentlicher Beschäftigung auf die Beschäftigung im Privatsektor untersucht. Ergebnis ist, dass die Schaffung öffentlicher Beschäftigung erhebliche Verdrängungseffekte auf die Gesamtbeschäftigung im Privatsektor hat, wobei hauptsächlich der handelbare Sektor von Beschäftigungsverlusten betroffen ist. / This thesis consists of four essays that contribute to the empirical literature on the determinants of recent changes in the employment and wage structure in Germany. The first essay analyzes recent employment growth at the lower tail of the wage distribution and its relation to technological progress. An econometric analysis suggests that tech-nological progress has shifted the demand from routine intensive occupations towards low-paying service occupations that require non-routine manual tasks, which are difficult to be replaced by information technologies, thereby contributing to the polarization of the employment structure. The second essay explores the role of technological change in the evolution of spatial wage inequality. The results indicate technological change is one driver of wage inequality by increasing the compensation for non-routine cognitive tasks, and by decreasing the compensation for routine and non-routine manual tasks. The third essay exploits regional variation in the liberalization of shop-closing legislation in Germany to identify the causal impact of product market deregulation on employment outcomes in the retail sector. The results from the empirical analysis suggest that the deregulation had moderately negative effects on retail employment, leading to a loss of approximately 19,000 full-time equivalent jobs. The reason is that deregulation induced a change in the market structure by significantly decreasing the number of small retail stores which are relatively more personnel-intensive than larger formats. The fourth essay provides an empirical analysis of the impact of changes in public sector employment on employment in the private sector at the level of local labor markets. It shows that expansions in public employment can be associated with a sizeable crowding out effect on private sector employment. Moreover, the results indicate that employment losses are concentrated in the tradable sector.

Notre recherche vise à enrichir la réflexion didactique sur les modalités d’un enseignement susceptible de favoriser dès les premières années d’apprentissage de l’allemand au collège (soit en 6ème et en 5ème) la mise en place de préférences discursives spécifiques à la langue-cible. Plutôt que de nous focaliser sur le placement verbal second dans les énoncés déclaratifs, nous avons fait le choix de nous intéresser à l’ouverture et à la position préverbale. Il s’agit en effet d’un champ que des apprenants même avancés n’investissent pas de manière conforme, en dépit d’une maîtrise avérée des règles morphosyntaxiques de la langue-cible. Dans la mesure où, en allemand, la position préverbale n’est pas déterminée sur le plan syntaxique, il est nécessaire de recourir à des catégories textuelles ainsi qu’à des critères pragmatiques liés à l’organisation informationnelle des constituants pour comprendre les phénomènes qui président au choix de l’élément à l’ouverture. Partant de là, nous avons incorporé ces aspects aux tâches proposées dans le cadre du cours afin de susciter une mise en œuvre de ces principes et de modifier les préférences de traitement des apprenants. Le travail d’appropriation relève aussi de processus intrapsychiques qui posent certes des limites à l’intervention enseignante mais dont la prise en compte permet d’élaborer des propositions didactiques étayées sur le plan linguistique et psycholinguistique. Adossée à la recherche en acquisition des langues (RAL), notre étude s’appuie sur l’analyse des réalisations de l’ouverture dans un corpus de productions d’apprenants de manière à recomposer nos propositions d’intervention en fonction des observations recueillies sur le terrain et de telle sorte qu’elle s’accorde à une progression d’apprentissage. Des notions linguistiques plurielles nous ont ainsi permis de mettre en lumière et d’exploiter à des fins d’enseignement des fonctions spécifiques liées à l’ouverture de l’énoncé en allemand. La RAL offre à notre travail un cadre d’analyse, des résultats permettant de comprendre la dimension cognitive de l’apprentissage et des notions qui fournissent un étayage théorique aux propositions didactiques que nous formulons. / This study concerns the acquisition of language specific discourse preferences in the first years of German as a foreign language in French secondary schools, and how new approaches could improve language instruction. Instead of focusing on verbal placement in declaratives, we decided to consider how learners start a sentence; that is, which constituent they decide to put before the finite verb form. The initial field in German (called pre-field) represents a syntactically undetermined position as it can be occupied by a variety of elements. To understand the constraints which influence the choice of the first constituent in a sentence, textual categories, as well as pragmatic and information-structural criteria, are required. These aspects were incorporated in the tasks the learners worked on in the classroom, in order to make them use such principles, and to modify the processing preferences they may have built up during acquisition of their L1. Acquisition draws on internal processes which set limits to instructional intervention. Practitioners should take these limitations into account if they aim to elaborate instructional proposals with linguistic and psycholinguistic relevance. Drawing on findings from the SLA research, we analyse the beginnings of sentences in a corpus of written and oral learner samples. We used these empirical observations as a guideline to redesign proposals for an instructional intervention which better fits a learning progression. Notions from different aspects of linguistics contribute to highlight specific functions of sentence beginnings in German. It would be possible to integrate these functions in a teaching programme. SLA research offers a theoretical framework to our research, as the findings provide a better understanding of the cognitive dimension of learning and the notions constitute a theoretical backing for our didactical proposals.

This thesis deals with uniform maths entrance examination for secondary school studies in education fields with a graduate exam. Thus, all primary school pupils applying for this form of secondary education will take the same tests prepared by Centre for Results in Education. The work includes an analysis of pupil's solutions of selected problematic tasks. A significant proportion of the tested pupils were found to have difficulties in dealing with the selected tasks. The last part of the work contains a collection of tasks that was created on the bases of the results obtained when testing pupils.

The diploma thesis deals with metric tasks in space, using synthetic and analytical geometry. In addition to explaining the different approaches, there is a set of examples to practice. The solution of the examples is part of the Portal of High School Mathematics (Portál středoškolské matematiky), where we can and analytical solutions, synthetic numerical solutions and synthetic constructional solutions.

This dissertation uses a feminist cultural materialist approach that draws on the work of Pierre Bourdieu and Luce Irigaray to examine the neglected genre of postwar-Cold War American teen girl romance novels, which I call female junior novels. Written between 1942 and the late 1960s by authors such as Betty Cavanna, Maureen Daly, Anne Emery, Rosamond du Jardin, and Mary Stolz, these texts create a kind of hieroglyphic world, where possession of the right dress or the proper seat in the malt shop determines a girls place within an entrenched adolescent social hierarchy. Thus in the first chapter, I argue that girls adherence to consumer-based social codes ultimately constructs a semi-autonomous female society, still under the umbrella of patriarchy, but based on female desire and possessing its own logic. This adolescent female society parallels the network of women who produced (authors, illustrators, editors) and distributed (librarians, critics) these texts to teenaged girls. Invisible because of its all-female composition, middlebrow status, and feminine control, yet self-governing for the same reasons, the network established a semi-autonomous space into which left-leaning authors could safely (if subtly) critique American social and foreign policies during the Cold War. Chapter Two examines the first generation of the network, including Anne Carroll Moore, Bertha Mahony, Louise Seaman, and May Massee, who helped to create the childrens publishing industry in America, while Chapter Three investigates the second generation, including Mabel Williams, Margaret Scoggin, and Ursula Nordstrom, who entrenched childrens and adolescent literature in publishing houses and library services. In Chapter Four I explore the shifting concept of what constitutes quality within these texts, with an emphasis on the role of authors, illustrators, and critics in defining such value. Chapter Five investigates the use of female junior novels within the classroom, paying particular attention to the role of bibliotherapy, in which these texts were used to help teenagers solve their developmental tasks, as suggested by psychologist Robert J. Havighurst. A brief conclusion discusses the fall of the female junior novels and their network, while a coda addresses the republication of these texts today through the nostalgia press.

In this knowledge economy, organizations are leveraging their competence through the knowledge they possess. Managing knowledge will potentially retain the competence held by the organization if knowledge generated across its projects and units is captured, structured and reused. Even though many tools and techniques are proposed in the literature to support these activities, their adoption in industry has been meagre. This may be due to development of tools without basing them on substantial and careful descriptive studies. This raises the following research issues: the knowledge processes and knowledge sources available in organizations and their characteristics need to be understood better. To address these gaps, following objectives are addressed in this research: ♦ To understand the specific needs and capability of the organization for capture and reuse of product development knowledge and ♦ To evaluate various alternative supports for capture and structure of relevant, evolving product development knowledge for reuse. To address these objectives, two observational studies were conducted in the organizations. To get a broader picture about the knowledge processes occurring in the organization, a KRIT model is proposed which is an acronym for Knowledge of solutions-Requirements-Interactions-Tasks, in which interactions of the designers with people and tools play the central role in processing knowledge during design. The KRIT model is validated through the demonstration of the existence of its nodes and links. From the observations it has been found that interactions ‘designer working with computer’, ‘two designers working with a computer’ and ‘two designers interacting with each other’ are most frequently occurred, and occupied most of the time during designing. Any tools to support knowledge capture and reuse should support these interactions such that capture and reuse can be intuitive and in-built in a natural way into a designer’s work habits. It is emphasized that there is a substantial need to increase the percentage of time spent by designers on capturing knowledge during the design process. This increase in time would lead to decrease in a designers’ time spent on knowledge acquisition and dissemination provided designers are capturing reusable knowledge. To answer capture and reuse of knowledge in detail in the observational studies, a new taxonomy of knowledge is proposed. By linking the representations of argumentation, designer’s activities, and the artefact being designed, we argued that the expressiveness of this taxonomy is high compared to the others proposed in the literature. The taxonomy has three broad categories of knowledge: topics, classes, and activities. Based on the definitions of the factors used in the taxonomy and the analysis of the protocols, the factors in each group under each category are argued to be mutually exclusive. In order to study the links between the proposed categories and factors in the taxonomy of knowledge, a method for converting the questions and answers (from the protocol data) into a generic format is framed. The taxonomy is validated comprehensively, and is able to cover various stages of design. Most of the designers’ time was spent working with a CAD package, in which most of the kinds of knowledge mentioned in the proposed taxonomy of knowledge was neither captured not reused. The important observations noted by comparing the knowledge captured in the preliminary study and the main study are as follows: Compared to the preliminary study, process related information and knowledge are captured higher in the main study. In the main study behavioural related content is captured more; whereas in the preliminary study structural content is captured more. The factors organization, usage, maintenance and sales captured in the preliminary study are not at all captured in the main study. In order to assess the usefulness of the knowledge captured, the kinds of knowledge needs of designers were compared with the kinds of knowledge captured. The important observations about the knowledge needs are: Irrespective of the design stages, in almost 50% of the questions, designers interacted with others to know about old issues or proposals in both the studies. A designer’s time for designing would benefit considerably if the answers for these 50% of the old questions were captured and made available for retrieval in formal documents. In both the studies, proposals based questions played a vital role in the questions analyzed. It shows that considerable proportion of time was spent by the designers on validating, by asking questions, the answers known to them. In contrast to the preliminary study, the designers’ needs for process-related information or knowledge were much higher than that for product-related information or knowledge. Comparing the generic questions obtained from the knowledge needs and knowledge captured reveals that only 14% and 26% with product related content and only 10% and 11.3% of the process based content asked by designers during designing were captured in the preliminary and the main study. These results show that there is a mismatch between knowledge captured and knowledge needed by the designers. This may be one of the primary reasons for the poor usage of documents in the organization. The generic questions generated from the questions asked by the designers and various documents will act as a guideline to the designers for what knowledge and information should and should not to be captured. Due to restrictions in the observations, a questionnaire survey was conducted to achieve the objective to collect 10% of total number of employees’ perspectives about the issues considered in this research. The important observations from the analyses of the collected questionnaire are: Designers’ perceive all types of interactions as important and frequent for information generation and sharing. These results are contradictory to the personal observations in which only interactions ‘designer working with computer’ and ‘two designers working with a computer’ occurred frequently. This shows that designers are unable to identify the kinds of interaction which they perform in their daily activities. Due to this, the information processes occurring within these interactions are not perceptible to the designers. Designers perceive that they get the right information at the right time in only 4 or more out of 10 for most of the times. This perception illustrates there is substantial need for the development of support to satisfy the information needs of designers. Analyses of the types of questions reveal that the question asking behavior of the designers is not static; the major share of questions falling under the category ‘question from answer given’ could be interpreted as: designers often do not frame exact questions to fulfil their requirements; they grab the opportunity to take as much as knowledge as possible during an interaction. Analyses of the types of answers reveal that designers gave more inferences on their answers in order to give a better response, which in turn should help reduce the number of questions subsequently asked especially in the protocol coded as ‘new answer’. Two studies have been used to assess the effectiveness of seven tools for supporting knowledge capture and reuse. The important observations from the initial study are: Mobile E-Notes TakerTM is ranked higher because this equipment provides a blend of properties between the paper and computer. These observations stress the importance of features provided for knowledge generation, modification, capture and reuse in the system. The observations from analyzing the three top rated tools (Mobile E-Notes TakerTM, Tablet with viewing facility and Computer with RhinocerosTM CAD package) to understand influence of these tools on knowledge capture and reuse during conceptual designing are: The differences observed in the percentage of capture between the usage of the three tools demonstrate that tools have an influence on the knowledge capture activity. Even though none of the three tools capture adequate knowledge during designing, Mobile e-Notes TakerTM seems to be the best tool for capture compared to the other two tools, both in the original and redesign experiments. These results suggest that some other mechanisms should be added to these tools so that their effectiveness of capturing could be increased. One mechanism is to incorporate the proposed KRIT model and the taxonomy of knowledge during designing. This integration will be one of the good mechanisms to aid knowledge capture and reuse, because the knowledge capture will occur along with the knowledge creation process. We believe that through this integration the purpose to enhance the knowledge capture and reuse during the design process will be achieved.

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Les études mettent en évidence des problèmes de santé psychologique chez les professionnels de la santé. Par contre, les facteurs permettant d’expliquer ces difficultés sont peu connus (p. ex., Cohen & Patten, 2005). Le but de cette thèse est d’étudier les déterminants de la santé psychologique des professionnels de la santé en se basant sur une théorie validée empiriquement. À cette fin, la théorie de l’autodétermination (Deci & Ryan, 1985, 2000) est utilisée comme cadre conceptuel et le soutien à l’autonomie (Black & Deci, 2000; Grolnick & Ryan, 1989) est proposé comme déterminant principal de la santé psychologique. Le premier article consiste en une recension des conséquences et corrélats associés au soutien à l’autonomie dans divers domaines de vie. Le deuxième article a pour objectif de tester un modèle prédictif de la santé psychologique auprès de médecins résidents. Le modèle propose que la concordance des tâches (Sheldon & Elliot, 1999) et la conscience de soi (Goldman & Kernis, 2002) sont deux sources distinctes d’autonomie qui prédisent de façon indépendante la santé psychologique. De plus, le soutien à l’autonomie de la part des superviseurs est suggéré comme étant un déterminant important de la concordance des tâches et de la conscience de soi. Au total, 333 médecins résidents de la province de Québec (Canada) ont rempli un questionnaire comportant différentes mesures. Des analyses par équations structurelles révèlent une excellente adéquation du modèle. Le troisième article examine l’influence du soutien à l’autonomie des collègues sur la satisfaction au travail ainsi que sur la santé psychologique des professionnels de la santé. Au total, 597 jeunes professionnels de la santé ont rempli un questionnaire incluant diverses mesures. Les résultats confirment que le soutien à l’autonomie perçu de la part des collègues prédit la santé psychologique et la satisfaction au travail. De plus, des régressions hiérarchiques démontrent que le soutien à l’autonomie des collègues contribue à la prédiction de la satisfaction au travail, du bien-être subjectif et des idéations suicidaires au-delà de ce qui est prédit par le soutien à l’autonomie des superviseurs. Les implications théoriques et pratiques de ces recherches sont discutées. / Past studies have revealed psychological health problems among health professionals, but less is known about the factors that may explain these difficulties (e.g., Cohen & Patten, 2005). The goal of this dissertation is to examine the antecedents of health professionals’ psychological health based on an empirically validated theory. To this end, self-determination theory (Deci & Ryan, 1985, 2000) is used as a conceptual framework and autonomy support (Black & Deci, 2000; Grolnick & Ryan, 1989) is proposed as a principal predictor of psychological health. The first article is a literature review of the consequences and correlates of autonomy support in various life domains. The second article aims at testing a predictive model of medical residents’ psychological health. Tasks self-concordance (Sheldon & Elliot, 1999) and self-awareness (Goldman & Kernis, 2002) are hypothesized to be two different pathways toward autonomy that should independently predict psychological health. The model further posits that perceived supervisors’ autonomy support should be an important determinant of both tasks self-concordance and self-awareness. A total of 333 medical residents from the province of Quebec (Canada) completed a questionnaire, which included various measures. Structural equation modeling analyses revealed an excellent model fit. The third article explores the contribution of colleagues’ autonomy support in the prediction of health professionals’ work satisfaction and psychological health. A total of 597 young health professionals from the province of Quebec (Canada) completed a questionnaire, which included different measures. Results confirmed that colleagues’ autonomy support predicts work satisfaction and psychological health. Furthermore, hierarchical regression analyses showed that colleagues’ autonomy support adds to the prediction of health professionals’ work satisfaction, subjective well-being, and suicidal ideation above and beyond supervisors’ autonomy support. The theoretical and practical implications of this research are discussed.

Tasks for different years of the secondary level II are presented on the basis of long lasting experience with computer-assisted mathematics instruction. They include applications of mathematical skills as well as the testing of theoretical knowledge. Finally relevant A-levels tasks are presented that integrate different mathematical contents into every day connections from economy, medical science, sports asf.