E-Dissertationen: Browsing E-Dissertationen by Title
Now showing items 111-130 of 1182
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Balancing Biodiversity and Economic Viability: Farmers' Motivations and Challenges in Nature-Protected Areas
(2025-10-29)Biodiversity loss is one of the most urgent environmental challenges, particularly in nature-protected areas (NPAs), where agriculture and conservation come together. Farmers play a central role in land management and can ... -
Balancing Natural and Agricultural Systems in the Atlantic Rainforest of Brazil
(2006)The aim of this work was to find ways of balancing natural and agricultural systems (AS) in the Atlantic rainforest of Brazil. Trade-offs and synergies were analyzed. Energy and emergy analysis, agro-biodiversity assessment, ... -
Bayesian Adaptive Markov Chain Monte Carlo Estimation of Genetic Parameters
(2012-04-18)Accurate estimation of genetic parameters is crucial for an efficient genetic evaluation system. REML and Bayesian methods are commonly used for the estimation of genetic parameters. In Bayesian approach, the idea is to ... -
Bee Pollinators and Economic Importance of Pollination in Crop Production: Case of Kakamega, Western Kenya
(2007)Bees are the main animal pollinators of crops worldwide. In Kakamega, Western Kenya, farmers do not manage them for pollination but rely on feral pollinators from the nearby habitats. The ability of these habitats to ... -
Bee pollinators and pesticides: a toxicogenomics approach to illuminate the basis for selectivity and synergism
(2022-09-15)Bees are the most important pollinators in many ecosystems including agroecosystems. Reports of declining bee populations in abundance and diversity are therefore alarming. Many factors are involved in the decline of bees ... -
Beiträge zur Kalibrierung und Evaluierung von Multisensorsystemen für kinematisches Laserscanning
(2021-01-20)In den letzten Jahren hat die Nutzung von Multisensorsystemen für kinematisches Laserscanning zunehmend an Bedeutung gewonnen. Dies zeigt sich durch die wachsende Anzahl am Markt verfügbarer Systeme und die sich ... -
Bekämpfung, Konkurrenz und Diversitätvon Abutilon theophrasti MED. (Lindenblättrige Schönmalve) in Zuckerrüben
(2006)In den Jahren 2003 und 2004 wurden in Deutschland und Tschechien die Auswirkungen verschiedener praxisnaher Bekämpfungsmaßnahmen auf die Konkurrenzbeziehungen zwi-schen dem invasiven Neophyten <i>A. theophrasti</i>, der ... -
Beratung von milchviehhaltenden Betrieben auf der Basis von Verhaltens- und Erscheinungsparametern ihrer Milchkühe
(2014-07-03)In Liegeboxenlaufställen für Milchkühe kann es durch eine suboptimale Gestaltung der einzelnen Funktionsbereiche und ein nicht ordnungsgemäßes Management zu Beeinträchtigungen der Tiere kommen. Um die in vielen Milchviehbetrieben ... -
Beschriftung von Bildschirmkarten in Echtzeit: Konzept und Struktur
(2003)Diese Arbeit stellt neuartige Konzepte zur Beschriftung von punkt-, linien- und flächenhaften Objekten in Karten vor. Der Fokus liegt dabei auf Bildschirmkarten. Im Unterschied zu traditionellen Papierkarten müssen für ... -
Bestimmung der gastrointestinalen Oxalat-Absorption unter verschiedenen vegetarischen Kostformen sowie bei Gabe eines Antacidums und Antidiarrhoicums
(2007)Calciumoxalat ist mit 70 - 75 % die am häufigsten vorkommende Harnsteinart. Bei der Calciumoxalat-Urolithiasis ist die Höhe der Oxalat-Ausscheidung von besonderer Bedeutung. Diese wird von verschiedenen Faktoren beeinflusst, ... -
Beurteilung von Agrarumweltmaßnahmen in Nordrhein-Westfalen und Rheinland-Pfalz: Einzelbetriebliche Analyse der Programme im Ackerbau
(2004)Die vorliegende Arbeit verfolgt das Ziel, die Wirkungszusammenhänge zwischen den angebotenen Agrarumweltmaßnahmen der betrachteten Bundesländer im Bereich Ackerbau und dem landwirtschaftlichen Einkommen sowie den Umwelteinfluss ... -
Beurteilung von Wetterderivaten als Innovation im Risikomanagement landwirtschaftlicher Betriebe
(2014-04-17)Wetterderivate sind relativ neue Instrumente im Risikomanagement. Sie bestimmen aus einem objektiv messbaren Wetterindex ihre Auszahlungssummen und überwinden somit einige Schwächen klassischer Versicherungslösungen, wie ... -
Beyond Deforestation Reductions: Co-Benefits of Conservation Policies in the Brazilian Amazon
(2026-04-02)The worldwide trend in tropical forest loss has been increasing overall since the 2000s. This imposes real social costs, such as through higher greenhouse gas emissions, diminished biodiversity, and harm to livelihoods and ... -
Beyond Zooming: Models and Algorithms for Mobile Maps with Extended Interaction Techniques
(2024-12-05)This thesis focuses on the development and evaluation of novel interfaces for the presentation of large and detailed geographic data sets on mobile devices. Especially when the density of information is high, a major ... -
Binding and mobilization of pharmaceuticals in wastewater-irrigated soils and sediments of the Mezquital Valley, Mexico
(2017-05-16)The irrigation of crop fields with treated or untreated wastewater has been an ancient practice in many cities around the world and is still a common practice nowadays. In doing so, wastewater is disposed and at the same ... -
Bio-Based Energy, Rural Livelihoods and Energy Security in Ethiopia
(2015-09-21)The energy consumption in Ethiopia is based mainly (90%) on the traditional use of biomass for domestic needs, mostly using rudimentary cooking stoves. Against this background, the present study examines the importance of ... -
Bio-ecology of the African citrus triozid Trioza erytreae Del Guercio (Hemiptera: Triozidae) on citrus in Kenya: implication for its management
(2019-03-12)Citrus production is a major industry in Kenya. Apart from providing income and jobs, it contributes to food and nutritional security. For the last decade, citrus production has experienced a continuous decline, particularly ... -
A bio-economic model of small-scale farmers’ land use decisions and technology choice in the eastern Brazilian Amazon
(2006)A great deal of more recent agricultural research in the Brazilian Amazon region has been focusing on the ‘hot spots’ of deforestation at the forest margins. Small-scale agriculturalists represent the largest group of the ... -
Bioactive Compounds in Underutilized Tropical Fruits from Latin America
(2012-10-10)A vast number of plant species originating from Latin America bear delicious fruits, which are hardly known beyond its regional borders. Many of these underutilized fruits may offer a great potential for an intensified ... -
Biodiversity and distribution of edible saturniidae (Lepidoptera) and their potential for mass rearing in Kenya
(2025-03-26)Edible insects including saturniid caterpillars are traditionally consumed in sub-Saharan Africa. Saturniids are utilized both as food and a source of income for rural communities. This study includes a review of available ...
