Browsing Naturwissenschaften, Mathematik und Informatik by Title
Now showing items 1292-1311 of 5496
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E-Commerce and Sales Management in Agribusiness
(2022-01-04)The digitization trend is changing processes in the agricultural sector and affects all players in the agricultural value chain equally. At present, especially the digital development of agricultural trade is being driven ... -
Early Cognitive Vision: Feedback Mechanisms for the Disambiguation of Early Visual Representation
(2008-04-25)Recent years have seen considerable progress in low level image processing as well as model based, vision applications. Joining the two fields proves to be a difficult problem due to the local ambiguity and noisiness ... -
Early Earth mantle heterogeneities
(2023-07-04)Determining isotopic signatures established in the Hadean mantle offers far-reaching insights into the origin of Earth’s accreted building blocks, core formation, mantle differentiation as well as the formation of Earth’s ... -
Earth-Abundant Transition Metal-Catalyzed Electro-Reductive Cross-Electrophile Coupling Reactions and C–H Activation by Cobaltaelectro-Catalysis
(2021-12-13)Within the last decades, immense progresses have been made with transition metal-catalyzed cross-electrophile reactions and C–H activation reactions. The merger of electrocatalysis with such powerful methods have further ... -
Ecological analysis of large floristic and plant-sociological datasets – opportunities and limitations
(2018-05-07)This thesis comprises opportunities and limitations for the analysis of floristic and plant-sociological datasets and presents four related exemplary case studies. Woody plant species, their isolated metapopulations and ... -
Ecological and socio-economic effects of industrial oil palm plantations in Southwest Cameroon
(2020-05-14)Rural agroforestry landscapes in West and Central Africa face a number of threats. Since decades, the ever escalating bushmeat crisis is pushing populations of threatened wildlife closer to extinction in many parts of West ... -
ECOLOGICAL CHARACTERISTICS AND ECONOMIC IMPACT OF NON NATIVE Ailanthus altissima (MILL.) SWINGLE IN HESSE, GERMANY
(2010-10-27)The introduction of alien species into new environments for many centuries has led to global biodiversity impacts which have been altering ecological processes gradually. These alterations ... -
Ecological determinants of social systems: Comparative and experimental feeding ecology of two mouse lemur species (<i>Microcebus berthae, M. murinus</i>)
(2009-01-13)The socio-ecological model (SEM) integrates ecological factors with characteristics of social systems and allows predictions about the relationships between resource distribution, type ... -
Ecological groups of Collembola in agroecosystems as affected by farm-based management practices
(2022-12-15)Present day agriculture is identified as a main threat to biodiversity. At the same time, the productivity of agricultural systems is relying on ecosystem services provided by biota. In order to conserve critical ecosystem ... -
Ecological impacts of biodiversity enrichment in oil palm plantations
(2016-01-12)Land-use change is one of the major drivers of biodiversity loss. To satisfy the demand for palm oil in food and biofuel, complex, species-rich rainforests are converted into large, simply-structured mono-culture oil palm ... -
Ecological information of ring width, stable carbon isotope composition and wood anatomical variables in tropical tree rings - A contribution to dendrochronology in the tropics
(2012-04-25)Trees are long living organisms and record ecologically relevant information in their growth rings. Studying tree growth on the base of tree rings can help to fill some of the major research gaps concerning the age and ... -
Ecological Management of Tropical forests: Implications for climate change and Carbon Fluxes
(2010-12-20)Tropical deforestation and forest degradation contributes to more than 20% of the global greenhouse gases emitted. Deforestation and its impacts can be more easily estimated with satellite ... -
Ecological modeling in two areas: species distribution modeling using commonness optimization and risk assessment for honeybees
(2024-07-09)Ecological systems are complex. Ecological models are simplified versions of ecological systems. Scientists use ecological models to better understand and manage ecological systems. I applied ecological models in two ... -
Ecological role of mycotoxin zearalenone in interactions among fungi and its enzymatic detoxification
(2008-05-28)Fungal secondary metabolites can not only cause toxic effects in animals and humans, but also exhibit toxic properties to microorganisms and plants. The mycotoxin zearalenone is a resorcylic lactone derivative produced ... -
Ecological, social and economic determinants in cocoa production systems in southern Cameroon
(2008-03-07)More diversified and species rich systems relate to functional consequences, which in turn will influence ecosystem processes, reducing outbreaks. This has been shown for landscape management practices and for intercropping ... -
Ecology and Molecular Characterization of Neozygites tanajoae (Entomophthorales: Neozygitaceae) a fungal pathogen of the cassava green mite
(2009-03-20)For the biological control of the cassava green mite (Mononychellus tanajoa, Bondar), Brazilian strains of the entomopathogen Neozygites tanajoae were recently introduced into Africa to ... -
Econometric Analysis of global wood markets and its implications on in-ternational forest products modelling
(2023-03-03)Global economic systems are changing due to several possible influences, like globalization, climate change, or social transformation. Even though, the wood markets analysis is well established and de-veloped for many kinds ... -
Economic Development, Nutrition Transition and Gender Discrimination in China
(2014-02-10)Since the implementation of the “reform and opening up” policy in 1978, China has been experiencing remarkable economic growth. This economic success can be partly attributed to technological progress, even though no ... -
Economic Implications of Changing Household Management of Basic Needs for Poverty Alleviation and Sustainability Policy, an Illustration of Food and Energy
(2023-02-01)The sharp reduction of extreme poverty worldwide and improvement to living standards in the last 20 years are remarkable and imply that a large number of people in developing countries are able to afford more than their ... -
Economic implications of tree species composition and structural diversity in European beech stands enriched with coniferous trees
(2024-09-27)Central European forests are the result of centuries of human activity. Changes in species composition, mainly by introducing conifers to areas outside their native range, mostly Norway spruce (Picea abies [L.] Karst.; ...