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The initial problem that motivated this thesis is the lock of possibility to represent finished theses by students of the research group BAS. Many finished thesis are only available in a printed version. Some of the students created their own websites but these are not uniform.
The first step to solve this problem is to create an overall research design. The research design of this thesis based on the construction-oriented approach of design science research by Hevner [2007]. The initial problem will be solved by creating a Web 2.0 website. Therefore the open source content management system Drupal is used. For the implementation of the target system, a set of requirements will be collected. This set of requirements will be collected by using various methods such like mock ups, interviews, collaboration scenarios and personas. To meet the collected requirements a set of additional modules will be added to the core version of Drupal. This advanced version of Drupal will be scenario and user tested. A result of this work is a deployable prototype, with which it is possible to present various theses. A further result will be user guides that describe the operation of the prototype. This thesis finishes with a conclusion and an outlook on the further use of the prototype.
Object recognition is a well-investigated area in image-based computer vision and several methods have been developed. Approaches based on Implicit Shape Models have recently become popular for recognizing objects in 2D images, which separate objects into fundamental visual object parts and spatial relationships between the individual parts. This knowledge is then used to identify unknown object instances. However, since the emergence of aσordable depth cameras like Microsoft Kinect, recognizing unknown objects in 3D point clouds has become an increasingly important task. In the context of indoor robot vision, an algorithm is developed that extends existing methods based on Implicit Shape Model approaches to the task of 3D object recognition.
In der Literatur sind Projekte als geeignetes Mittel zur Implementierung von Strategien im Unternehmen anerkannt. Ähnlich wie bei einem Projekt handelt es sich bei der Implementierung von Strategien um zeitlich befristete Aufgaben, die in der Regel eine hohe Komplexität und Neuartigkeit aufweisen. Aufgrund dessen werden heutzutage strategische Vorhaben in Form von Projekten umgesetzt. Somit haben Projekte eine hohe Bedeutung für die strategische Entwicklung von Unternehmen. Um diese strategische Entwicklung sichern zu können, muss ein permanentes Lenkungssystem für strategische Projekte im Unternehmen implementiert werden " das Projektportfoliomanagement. Aufgrund der Komplexität und Neuartigkeit strategischer Projekte ist das Projektportfoliomanagement ein hoch komplexes Lenkungssystem mit vielen Subprozessen, die mit hohen Kosten und Zeitaufwand verbunden sind. Diese Masterarbeit beschäftigt sich mit der Optimierung des Projektportfoliomanagements anhand der Lean-Philosophie. Letztere ist eine Sammlung von Prinzipien und Methoden, die für die Verschlankung der Produktion in der Automobilindustrie entwickelt wurde. Der Einsatz der Lean-Prinzipien brachte eine derartige Steigerung der Effizienz und Effektivität bei der Automobilherstellung, dass diese Prinzipien auch in anderen Branchen und Funktionsbereichen eigesetzt werden. Nun soll das Potential der Lean-Philosophie für die Optimierung des Projektportfoliomanagements untersucht werden.
This diploma thesis describes the concept and implementation of a software router for policy-based Internet regulation. It is based on the ontology InFO described by Kasten and Scherp. InFO is destined for a system-independent description of regulation mechanisms. Additionally, InFO enables a transparent regulation by linking background information to the regulation mechanisms. The InFO extension RFCO extends the ontology with router-specific entities. A software router is developed to implement RFCO at the IP level. The regulation is designed to be transparent by letting the router inform affected users about the regulation measures. The router implementation is exemplarily tested in a virtual network environment.
The adoption of the EU Water Framework Directive (WFD) in 2000 marked the beginning of a new era of European water policy. However, more than a decade later, the majority of European rivers are still failing to meet one of the main objectives of the WFD: the good ecological status. Pesticides are a major stressor for stream ecosystems. This PhD thesis emphasises the need for WFD managers to consider all main agricultural pesticide sources and influencing landscape parameters when setting up River Basin Management Plans and Programmes of Measures. The findings and recommendations of this thesis can help to successfully tackle the risk of pesticide contamination to achieve the WFD objectives.
A total of 663 sites that were situated in the German Federal States of Saxony, Saxony-Anhalt, Thuringia and Hesse were studied (Chapter 3 and 4). In addition to an analysis of the macroinvertebrate data of the governmental WFD monitoring network, a detailed GIS analysis of the main agricultural pesticide sources (arable land and garden allotments as well as wastewater treatment plants (WWTPs)) and landscape elements (riparian buffer strips and forested upstream reaches) was conducted. Based on the results, a screening approach was developed that allows an initial rapid and cost-effective identification of those sites that are potentially affected by pesticide contamination. By using the trait-based bioindicator SPEARpesticides, the insecticidal long-term effects of the WWTP effluents on the structure of the macroinvertebrate community were identified up to at least 1.5 km downstream (in some cases even 3 km) of the WWTPs. The results of the German Saprobic Index revealed that the WWTPs can still be important sources of oxygen-depleting substances. Furthermore, the results indicate that forested upstream reaches and riparian buffer strips at least 5 m in width can be appropriate measures in mitigating the effects and exposure of pesticides.
There are concerns that the future expansion of energy crop cultivation will lead to an increased pesticide contamination of ecosystems in agricultural landscapes. Therefore, the potential of energy crops for pesticide contamination was examined based on an analysis of the development of energy crop cultivation in Germany and a literature search on perennial energy crops (Chapter 5). The results indicate that the future large-scale expansion of energy crop cultivation will not necessarily cause an increase or decrease in the amounts of pesticides that are released into the environment. The potential effects will depend on the future design of the agricultural systems. Instead of creating energy monocultures, annual energy crops should be integrated into the existing food production systems. Financial incentives and further education are needed to encourage the use of sustainable crop rotations, innovative cropping systems and perennial energy crops, which may contribute to crop diversity and generate lower pesticide demands than do intensive farming systems.
In the man-machine interaction tracking and identification of individuals plays an important role. In this work, a framework for the service-robot Lisa, of the Active Vision Group, has been created to combine different methods for the detection, tracking and identification of individuals. First leg detection is performed to establish hypotheses for people using a 2D-laserscan. This assumption needs to be confirmed by an analysis of the Kinect point cloud. After successful confirmation online-boosting on RGB-data is performed for identification. The leg data will also be used with a linear Kalman filter to estimate the movement of people. Through the combination of of Kalman filter with leg detection and online-boosting people tracking should be enabled. Further receiving an interchange of persons should - by brief occlusion or faulty associate of legs - can be prevented.
The present thesis covers the implementation and optimization of global illumination in three-dimensional scenes. Global illumination does not only consider direct illumination dependent on one or more light sources, but also indirect illumination which is emitted by surrounding objects in the scene. The thesis focuses on the implementation of a global illumination method and its improvement using OpenGL 4.4. This is done by a voxelization of the scene. By traversing the resulting voxel structure, additional information is taken from the scene, which contributes to a plausible global illumination.
Online Handschrifterkennung chinesischer Schriftzeichen auf androidfähigen mobilen Endgeräten
(2014)
Usage of mobile dictionaries or translators requires an input. This input has to be processed and recognized beforehand. Chinese characters are more suited for a handwritten input than a keyboard based one. Reason for that are the characters consisting mostly of pictograms or ideograms.
This thesis deals with an implementation of a prototypical recognition system on a mobile device. The recognition process should be online and therefore running while writing. It can save time for the user, because suggestions are made during runtime.
Basics and an overview over the current state of the art in online handwriting recognition will be given. An approach will be chosen and implemented, such that the recognition process is fast and needs little memory. The implementation will be tested and it will show, that a fast recognition can be possible on small devices. Suggestions for expansions and improvements will be given, including a future work part.
Through the increasing availability of access to the web, more and more interactions between people take place in online social networks, such as Twitter or Facebook, or sites where opinions can be exchanged. At the same time, knowledge is made openly available for many people, such as by the biggest collaborative encyclopedia Wikipedia and diverse information in Internet forums and on websites. These two kinds of networks - social networks and knowledge networks - are highly dynamic in the sense that the links that contain the important information about the relationships between people or the relations between knowledge items are frequently updated or changed. These changes follow particular structural patterns and characteristics that are far less random than expected.
The goal of this thesis is to predict three characteristic link patterns for the two network types of interest: the addition of new links, the removal of existing links and the presence of latent negative links. First, we show that the prediction of link removal is indeed a new and challenging problem. Even if the sociological literature suggests that reasons for the formation and resolution of ties are often complementary, we show that the two respective prediction problems are not. In particular, we show that the dynamics of new links and unlinks lead to the four link states of growth, decay, stability and instability. For knowledge networks we show that the prediction of link changes greatly benefits from the usage of temporal information; the timestamp of link creation and deletion events improves the prediction of future link changes. For that, we present and evaluate four temporal models that resemble different exploitation strategies. Focusing on directed social networks, we conceptualize and evaluate sociological constructs that explain the formation and dissolution of relationships between users. Measures based on information about past relationships are extremely valuable for predicting the dissolution of social ties. Hence, consistent for knowledge networks and social networks, temporal information in a network greatly improves the prediction quality. Turning again to social networks, we show that negative relationship information such as distrust or enmity can be predicted from positive known relationships in the network. This is particularly interesting in networks where users cannot label their relationships to other users as negative. For this scenario we show how latent negative relationships can be predicted.
New techniques concerning the automatic identification of objects (Auto-ID) show unique potential for being used in the economy. This paper focuses on the technology of Radio Frequency Identification (RFID) and examines its uses and potentials regarding selected economic sectors. In the course of this paper, RFID will be directly compared to the bar code, the currently most prevalent system for object identification in the economy. To this end, the different basic modes of operation of both technologies will be introduced, and differences between their technical realizations will be brought to light. Moreover, this paper distinguishes and evaluates both technologies with regards to their potential use in three different branches of industry. Their differentiation provides the basis for determining and evaluating the RFID technology- probability of replacing the bar code in the consumer goods sector, the logistic sector, and the pharmaceutic sector.
Non-Consumptive Effects of Spiders and Ants: Does Fear Matter in Terrestrial Interaction Webs?
(2014)
Most animals suffer from predators. Besides killing prey, predators can affect prey physiology, morphology and behaviour. Spiders are among the most diverse and frequent predators in terrestrial ecosystems. Our behavioural arena experiments revealed that behavioural changes under spider predation risk are relatively scarce among arthropods. Wood crickets (Nemobius sylvestris), in particular, changed their behaviour in response to cues of various spider species. Thereby, more common and relatively larger spider species induced stronger antipredator behaviour in crickets.
Behavioural changes under predation risk are expected to enhance predator avoidance, but they come at a cost. Crickets previously confronted with cues of the nursery web spider (Pisaura mirabilis) were indeed more successful in avoiding predation. Surprisingly, crickets slightly increased food uptake and lost less weight under predation risk, indicating that crickets are able to compensate for short-term cost under predation risk. In a following plant choice experiment, crickets strongly avoided plants bearing spider cues, which in turn reduced the herbivory on the respective plants.
Similar to spiders, ants are ubiquitous predators and can have a strong impact on herbivores, but also on other predators. Juvenile spiders increased their propensity for long-distance dispersal if exposed to ant cues. Thus, spiders use this passive dispersal through the air (ballooning) to avoid ants and colonise new habitats.
In a field experiment, we compared arthropod colonisation between plants bearing cues of the nursery web spider and cue-free plants. We followed herbivory during the experimental period and sampled the arthropod community on the plants. In accordance with the plant choice experiment, herbivory was reduced on plants bearing spider cues. In addition, spider cues led to changes in the arthropod community: smaller spiders and black garden ants (Lasius niger) avoided plants bearing spider cues. In contrast, common red ants (Myrmica rubra) increased the recruitment of workers, possibly to protect their aphids.
Although behavioural changes were relatively rare on filter papers bearing spider cues, more natural experimental setups revealed strong and far-reaching effects of predation risk. We further suggest that risk effects influence the spatial distribution of herbivory, rather than reduce overall herbivory that is expected if predators kill herbivores. Consequently, the relative importance of predation and risk effects is crucial for the way predators affect lower trophic levels.
Engineered nanoparticles (ENP) are widely used in different industrial fields and products. In the last years, the risk potential for the release of ENP in the environment has increased as never before. ENP are expected to pass the wastewater-river-topsoil-groundwater pathway. In the terrestrial and aquatic environment ENP can undergo aging and transformation processes which can influence fate, transport and toxicological effects to different living organisms.
The scope of this workshop is to gather researchers, scientists, experts and specialists from nanoparticle and colloid science, soil and environmental chemistry, ecotoxicology or neighbouring disciplines to discuss the latest results and findings in the field of aging, fate, transport and toxicological effects of nanoparticles in the environment.
Die vorliegende Dissertation leistet einen Beitrag zur historischen Frauenbildung in Deutschland. Gegenstand der Studie ist die Mädchenbildung im Zeitalter der Aufklärung. Da diese von der Pädagogik der Jungen stets getrennt betrachtet wurde und Bildung sich nach dem allgemeinen Verständnis bürgerlichen theoretischen Verstandes nur auf die Erziehung des jungen männlichen Geschlechts bezog, blieb die Frau von öffentlicher Bildung im 18. Jahrhundert weitgehend ausgeschlossen. An den Bildungsformen der Lesegesellschaften, der Salonkultur und der "Moralischen Wochenschriften" wird zunächst aufgezeigt, in welcher Weise es Frauen möglich war, sich dennoch Zugang zur Bildung zu verschaffen. Die beiden folgenden Kapitel behandeln La Roches und Campes Biografie. Im Fokus steht dabei ihrer beider Handeln im Feld der Mädchenerziehung und des Reisejournalismus. Vergleichend werden bildende Elemente hinsichtlich ihrer Hinwendung zur Französischen Revolution und des Reisejournalismus dargelegt. Die Betrachtung der Reiseberichte beider Autoren klärt, in welcher Form La Roche und Campe den politischen Reformbestrebungen des späten 18. Jahrhunderts folgen bzw. in welchem Maß sie den Idealen der voraufklärerischen Zeit unterliegen. Im Mittelpunkt der Arbeit stehen La Roches Briefe an Lina (1783/84) und Campes Väterlicher Rath für meine Tochter (1789). Die Mädchenratgeber spiegeln das pädagogische Konzept der Mädchenbildung beider Autoren wider. Eine Gegenüberstellung der Mädchenratgeber wird zeigen, inwieweit La Roche und Campe konservativen bzw. progressiven Leitbildern der Mädchenbildung folgen. Die Studie geht von der Ambivalenzthese aus, nach der La Roche und Campe innerhalb ihrer Denkweisen als Pädagogen und Reiseschriftsteller Gegensätze und Widersprüche aufweisen. Es soll geklärt werden, inwiefern La Roches Mädchenbildungskonzept von emanzipativen Vorstellungen geprägt ist, ihr politisches Denken hingegen konservativ erscheint, während Campes Mädchenbildungstheorie eher traditionell angelegt ist, seine politischen Ideale aber innovativ sind. In einer abschließenden Betrachtung werden die Ambivalenzen zwischen La Roches und Campes pädagogischen und politischen Anschauungen geklärt.
This work is mainly concerned with multiple goals as indicators of stable as well as situation-specific motivation. During school lessons, pupils strive for competence-oriented goals as well as goals which target psychological well-being. The goal to enlarge one- competence and to acquire deeper knowledge (mastery goal), to attain normative competence (performance approach goal) as well as the goal to avoid the demonstration of lack ofrncompetence (performance avoidance goal) belong to the category of academic goals. The category of well-being goals includes the goal to avoid hard work (work avoidance goal) as well as the aim to interact socially with relevant peers (affiliation goal).
It is still unclear, however, if goals are best defined as fluctuating state or stable trait variables. Here, both aspects of goals are conceptualized differentially and their connection is explored in two studies based on a longitudinal design. Another question that is raised here is concerned with the explanation of state-goal-genesis. Different motivational theories serve as the basis for the development of a new framework model, which explores the genesis of state goal-components due to trait goal-components, situational appraisals and their interaction. In the literature, three effect models between appraisals and trait goals regarding the state goals are identified: a) appraisals and trait goals might predict state goals additively (additive effect), b) trait goals might influence the state goals mediated by the appraisals (reactive effect), or c) the trait goals may have differential effects on the state goals for low or high values of the appraisals (interaction effect). Moreover, assumptions on proximal consequences of state-goals are made within the framework model.
Study 1 comprised of two samples (N = 197 and N = 297). Both multiple goal factors as well as their state- and trait-components were validated empirically in a longitudinal design. State goal measures proved to be sensitive to situational influences and to be differentially valid compared to trait goal measures. Study 2 primarily dealt with the explanationrnof the genesis of state goals in actual learning situations. The basic assumptions of the framework model as well as the three effect models were explored systematically in a longitudinal design (N = 542). As expected, competence oriented goals correlated with adaptive indicators of learning processes (e.g., flow), while the well-being goals did not. The additive effect hypothesis was confirmed while the reactive effect hypothesis was rejected. With the help of latent moderator models, some interaction effects were identified which showed that trait goals were differentially predictive for state goals depending on the level of situational appraisals.
Redaktionelle Korrektur betreffend die Promotionsordnung des Fachbereichs 1: Bildungswissenschaften der Universität Koblenz-Landaurn
Dritte Ordnung zur Änderung der Prüfungsordnung für die Prüfung im lehramtsbezogenen Bachelorstudiengang Berufsbildende Schulen an der Universität Koblenz-Landau und der Hochschule Koblenz
Zweite Ordnung zur Änderung der Ordnung für die Prüfung im Masterstudiengang für das Lehramt an berufsbildenden Schulen an der Universität Koblenz-Landau und der Hochschule Koblenz
Erste Ordnung zur Änderung der Diplomprüfungsordnung für den Weiterbildenden Fernstudiengang Angewandte Umweltwissenschaften an der Universität Koblenz-Landau
Vierte Ordnung zur Änderung der Prüfungsordnung für die Prüfung im Zwei-Fach-Bachelorstudiengang an der Universität Koblenz-Landau
Geschäftsordnung des Studierendenparlaments der Universität Koblenz-Landau, Campus Landau vom 15.10.2014
Satzung der Studierendenschaft der Universität Koblenz-Landau, Campus Landau vom 15.10.2014
Ordnung zur Änderung der Beitragsordnung des Studierendenwerks Koblenz vom 20.10.2014
Erste Ordnung zur Änderung der Eignungsprüfung Darstellendes Spiel der Universität Koblenz-Landau vom 29.10.2014
Änderung zur Festsetzung von Zulassungszahlen an der Universität Koblenz-Landau für das Studienjahr 2014/2015
Siebte Ordnung zur Änderung der Prüfungsordnung für die Prüfung im lehramtsbezogenen Bachelorstudiengang an der Universität Koblenz-Landaurn
Fünfte Ordnung zur Änderung der Prüfungsordnung für die Prüfung in den Masterstudiengängen für das Lehramt an Grundschulen, das Lehramt an Realschulen plus, das Lehramt an Förderschulen sowie das Lehramt an Gymnasien an der Universität Koblenz-Landau
Sechste Ordnung zur Änderung der Ordnung für die Prüfung im lehramtsbezogenen Zertifikatsstudiengang (Erweiterungsprüfung) an der Universität Koblenz-Landau
Dritte Ordnung zur Änderung der Prüfungsordnung für die Prüfung im Zwei-Fach-Bachelorstudiengang an der Universität Koblenz-LandaurnrnErste Ordnung zur Änderung der Ordnung für die Prüfung im Bachelorstudiengang und im Masterstudiengang BioGeoWissenschaften der Universität Koblenz-Landau
Vierte Ordnung zur Änderung der Prüfungsordnung für den Bachelorstudiengang "Sozialwissenschaften" und den Masterstudiengang "Sozial- und Kommunikationswissenschaften" des Fachbereichs 6: Kultur und Sozialwissenschaften an der Universität Koblenz-Landau
Fünfte Ordnung zur Änderung der Gemeinsamen Prüfungsordnung für den Bachelorstudiengang und den Masterstudiengang "Psychologie" des FachbereichsrnPsychologie der Universität Koblenz-Landau, Campus Landau
Redaktionelle Korrektur betreffend die Erste Ordnung zur Änderung der Promotionsordnung des Fachbereichs 7: Natur- und Umweltwissenschaften der Universität Koblenz-Landau vom 19.08.2014
Promotionsordnung des Fachbereichs 2: Philologie / Kulturwissenschaften vom 06.10.2014
Zehnte Ordnung zur Änderung der Prüfungsordnung für die Prüfung im lehramtsbezogenen Bachelorstudiengang an der Universität Koblenz-Landau vom 14.10.2014
Vierte Ordnung zur Änderung der Ordnung für die Prüfung im lehramtsbezogenen Bachelorstudiengang Berufsbildende Schulen an der Universität Koblenz-Landau und der Hochschule Koblenz vom 14.10.2014
Neunte Ordnung zur Änderung der Prüfungsordnung für die Prüfung in den Masterstudiengängen für das Lehramt an Grundschulen, das Lehramt an Realschulen plus, das Lehramt an Förderschulen sowie das Lehramt an Gymnasien an der Universität Koblenz-Landau vom 14.10.2014
Dritte Ordnung zur Änderung der Ordnung für die Prüfung im Masterstudiengang für das Lehramt an Berufsbildenden Schulen an der Universität Koblenz-Landau und der Hochschule Koblenz vom 14.10.2014
Achte Ordnung zur Änderung der Ordnung für die Prüfung im lehramtsbezogenen Zertifikatsstudiengang (Erweiterungsprüfung) an der Universität Koblenz-Landau vom 14.10.2014
Siebente Ordnung zur Änderung der Prüfungsordnung für die Prüfung im Zwei-Fach-Bachelorstudiengang an der Universität Koblenz-Landau vom 14.10.2014
Erste Ordnung zur Änderung der Promotionsordnung des Fachbereichs 7: Natur- und Umweltwissenschaften der Universität Koblenz-Landau vom 19.08.2014
Promotionsordnung des Fachbereichs 6: Kultur- und Sozialwissenschaften der Universität Koblenz-Landau vom 01.09.2014
Ordnung für das weiterbildende Studium in Kinder und Jugendpsychotherapie an der Universität Koblenz-Landau, Campus Landau vom 02.09.2014