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18.06.2013
The lecture is an introduction to carbon footprinting, one way to assess the environmental burden of horticultural production systems and supply chains. This is done by calculating the greenhouse gas e missions (GHG) of the different steps in horticultural production such as ferilisation, plant protection, mulching, thinning, harvest, storage and processing. This approach is designated as life cycle assessment (LCA) and considers all aspects of production and all greenhouse gas emissions. Three greenhouse gases play the major role in horticulture, carbon dioxide (CO2), methane (CH3) and nitric oxide (N2O).
14.06.2013
This presentation will introduce the organization and research areas of the Center for the Built Environment (CBE) at the University of California, Berkeley.
12.06.2013
The modern science of networks has brought significant advances to our understanding of complex systems. Real-world entities are often interconnected with each other through explicit or implicit relationships to form a complex network. Examples of complex networks are found in many fields of science such as biological, technological, economic as well as social systems. In this seminar the speaker will present an introduction to the science of complex networks, starting from the theoretical foundations of graph theory and giving emphasis to representation, analysis and modeling. Also several applications of complex networks to real-world problems and data will be proposed. In particular, the World Trade Web (WTW), as the complex network representation of the international trade system, will be discussed.
10.06.2013
In Asian countries, beekeeping industry plays a significant role within the agricultural sector. In Thailand, at least four native honey bee species are found, apart from an introduced species, Apis mellifera. Severe cases of bee loss have not been reported. However, during our visit to local apiaries in order to conduct a survey of diseases and pests, few apiaries encountered the colony collapse up to 50%, due to the Tropilaelaps and Varroa mite infestations. European foulbrood and Chalkbrood diseases also frequently occur. In addition, honey bees were infested with Nosema ceranae and some viruses.
10.05.2013
Am 10. Mai 2013 um 11 Uhr wird in der Aula Magna des Versuchszentrums Laimburg der nächste Vortrag in der Reihe der Joint Research Seminars stattfinden. Falk-Juri Knauft und Arndt Kunick (Versuchszentrum Laimburg) werden einen Vortrag zu "Vegemont - Ergebnisse der Saison 2012" halten.
06.05.2013
Polymeric materials are a relatively new class of materials. Today, the concept of a “giant molecule” is universally accepted by scientist, but this was not always so, and the initial antagonism toward the idea that very large covalently bonded molecules could exist was deep-seated and difficult to dispel. The German  organic chemist Hermann Staudinger cast doubts on the presence of physical forces of aggregation in colloidal systems. From 1927 onward, he started to convince other chemists that colloidal substances like rubber, starch, cellulose were, in fact, long, linear molecules of variable length, composed of small definable molecular units, covalently bonded to one another to form macromolecules or polymers. Hence, the terms polymer and polymeric material encompass very large, broad classes of compounds, both natural and synthetic, with a wide variety of properties.
24.04.2013
In my presentation I will give a short overview of the work I did during the second year of the PhD program, highlighting the first two publications on “forest regeneration” and “functional diversity” under the influence of the two non-native tree species Robinia pseudoacacia and Prunus serotina in the biosphere reserve Valle del Ticino (NW Italy).
18.04.2013
In this talk the phenomenology of vehicular traffic, both on motorways and on city roads, is illustrated. The empirical features of the phenomenon (free flow - congested traffic transition, synchronized patterns, emergence of ghost queues) are discussed. The different existing classes of mathematical models are introduced, in a way to show their range of validity and their limits. Some comments to the vehicular traffic phenomenon as a paradigm of complexity are suggested.
26.03.2013
Da die künftige Verbraucherakzeptanz sowie die Ökonomie tierhaltender Betriebe sehr wesentlich von Tiergesundheit und Wohlbefinden abhängen, ist den Umweltfaktoren, die diese beeinflussen, größte Aufmerksamkeit zu schenken. Dazu gehören u.a. die Fütterung (Nährstoffzusammensetzung, -niveau, Fütterungsfrequenz), die Haltung (u.a. Wahl des Stallsystems), die Infrastruktur des Betriebes sowie das Management (u.a. Betreuung und Pflege der Tiere, Tierbeobachtung, Art und Weise der Bestandsabschirmung, Impfungen, Reinigung und Desinfektion).
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