E-Dissertationen: Browsing E-Dissertationen by Title
Now showing items 826-845 of 1013
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S-Flüsse und räumliche Veränderungen anorganischer und organischer Schwefelfraktionen im Boden sowie deren An- und Abreicherung in der Rhizosphäre landwirtschaftlicher Kulturpflanzen unter partiellem Einsatz des Radioisotops 35S
Morche, Lydia (2008)Durch den in den letzten Jahrzehnten weltweit verstärkt auftretenden S-Mangel ergibt sich die Notwendigkeit einer angemessenen S-Versorgung der Pflanzen. Um dies zu gewährleisten, ist das Wissen über S-Flüsse im Boden bzw. ... -
Sapling ecology and management in multi-species afforestation system on degraded cropland in the Sudano-Sahelian zone of Benin
Noulèkoun, Florent Anguilles Dèhogbé (2020-12-01)Sub-Saharan Africa faces the multiple challenges of improving food security of the rapidly growing human population while halting the severe land degradation and coping with climate change impacts. Re- and afforestation ... -
Schätzung des regionalen Aufkommens an Sommergerste in Tschechien 2001 und 2002 mit Satelliten- und Wetterdaten
Schilling, Barbara (2007)Ziel der Arbeit war es, mit Hilfe der optischen Fernerkundung und ergänzender Daten das regionale Aufkommen an Sommergerste in Westböhmen in den Jahren 2001 und 2002 zu schätzen. Dafür mussten zwei getrennte Schätzverfahren ... -
School lunch and short-term effects on children’s cognitive functions: Results from randomized crossover intervention studies
Gutmann, Maike (2017-10-06)Studies indicate that eating lunch temporarily impairs some aspects of adults' cognitive functioning. Studies of the short-term effects of lunch on child cognition are rare. This thesis provides the results of two randomized ... -
Screening for malnutrition and Intervention with oral nutritional supplements in nursing home residents
Jobse, Inken (2013-12-02)Malnutrition is a common and known problem in the elderly population with serious consequences. The use of oral nutritional supplements as intervention option to improve the nutritional situation has also been investigated ... -
Semantik-basierte Gebäudeerfassung mit verkoppelten Markoff-Zufallsfeldern
Brunn, Ansgar (2001)In dieser Arbeit wird ein neues automatisches Verfahren zur Erfassung von Gebäuden aus Digitalen Oberflächenmodellen entwickelt. Im Gegensatz zu den meisten bisher in der Literatur beschriebenen Verfahren wird in diesem ... -
Semantische Modellierung von geomorphologischenObjekten in einem Geoinformationssystem (GIS) unter besonderer Berücksichtigungvon Wänden und steilen Hangbereichen
Löwner, Marc-O. (2005)Die vorliegende Arbeit ist im Graduiertenkolleg "Das Relief - eine strukturierte und veränderliche Grenzfläche" an der Universität Bonn entstanden. Sie befasst sich mit der formalen semantischen Modellierung und geometrischen ... -
Sensing the response of sugar beet and spring barley to abiotic and biotic stresses with proximal fluorescence techniques
Leufen, Georg (2016-01-22)The aim of these studies was to evaluate the potential of non-destructive fluorescence techniques for the detection and differentiation of abiotic and biotic stress situations. For this purpose, sugar beet cultivars were ... -
Sensor fusion for localization of automated vehicles
Merfels, Christian (2018-12-13)Automated vehicles need to precisely know where they are at all times to be able to make informed driving decisions. Therefore, multiple localization systems are typically installed on such vehicles to provide redundant ... -
Sensor platform for rapid detection and quantification of indicator and pathogenic bacteria on food contact surfaces
Badalyan, Grigori (2021-08-04)Foodborne pathogenic bacteria represent a global problem for public health. <em>Escherichia coli</em> and Coliforms indicates the possible contamination of food, water and food processing environments. In food processing ... -
Sensor-Based Phenotyping of Plant’s Physiological Responses to Abiotic Stress
Ellenberger, Jan (2022-02-03)Plant phenotyping can be defined as the systematic recording of morphological, anatomical, physiological and chemical characteristics of plants, as well as their developments and responses to stimuli. The common use of ... -
Separablity of deformations and measurement noises of GPS time series with modified Kalman filter for landslide monitoring in real-time
Li, Lihua (2011-08-04)The separation of the deformations and measurement noise of GPS coordinate time series and accuracy improvement of GPS real-time coordinates are major aspects of the thesis. In order to reduce the influence of the colored ... -
Sequential Learning Using Incremental Import Vector Machines for Semantic Segmentation
Roscher, Ribana (2012-10-24)We propose an innovative machine learning algorithm called incremental import vector machines that is used for classification purposes. The classifier is specifically designed for the task of sequential learning, in which ... -
Serum lipid status in European adolescents: associations with age, gender, maturity, body mass index, percentage body fat, and fat free mass
Spinneker, Andre (2010-06-08)The development of cardiovascular diseases and atherosclerosis and its relation to lipids (e.g. cholesterol, lipoproteins, and fatty acids [FA]) is well established and begins in childhood and adolescence. Beside that, an ... -
The serum proteome and metabolome of dairy cows clustered for body fat content from a large dairy herd
Riosa, Ruben (2022-06-20)The transition from late pregnancy to early lactation implies metabolic and endocrine changes for accomplishing the adaptation to the rapid increase of milk production. Voluntary feed intake can usually not cover the energy ... -
Shifting towards sustainable and healthier dietary patterns in the Rhine-Ruhr Metropolis, Germany: An extended One Health Life Cycle Assessment
Minetto Gellert Paris, Juliana (2024-05-15)The current state of global food systems poses threats to the environment and public health. Addressing these issues requires a transdisciplinary approach to promote sustainable development. This study adopts the One Health ... -
Short-term individual nutritional care as part of routine clinical setting improves outcome and quality of life in malnourished medical patients
Drommer, Juliane (2012-11-12)Nutritional strategies to treat malnutrition are rare and lack practicability in the hospital setting. This study aims at providing nutritional risk patients with individual nutrition care in order to raise energy and ... -
Die Signaltransduktion über Inositol-1,4,5-trisphosphat in Sonnenblumen-Hypokotylprotoplasten am Beispiel des Schwerkraftreizes
Müller, Georg (2000)Sonnenblumen-Hypokotylprotoplasten (HCPs) wurden als Model zur Prüfung der Hypothese verwendet, daß das PI-System Bestandteil der schwerkraftinduzierten Signaltransduktion ist. Hierzu wurde der <i>second messengers</i> ... -
Silage maize variety and heat stress: effects on nutritive value of maize silage and on digestion events and performance of ruminants
Gorniak, Tobias (2015-05-05)The present thesis addresses two topics; brown-midrib (Bm) silage maize and heat stress in ruminants. The first part of this thesis focused on an experimental Bm silage maize hybrid with regard to dry matter (DM) intake ... -
Simulated Satellite Formation Flights for Detecting the Temporal Variations of the Earth’s Gravity Field
Elsaka, Basem Abd Elkareem Anwar (2010-07-09)In this thesis, the concept of satellite formation flight (SFF) is studied by means of simulated satellite observations. With various formation types enabling inter-satellite measurements in various directions (e.g. ...