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Now showing items 4594-4613 of 9818
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Homorhize und allorhize Wurzelsysteme: Vorfruchtwirkungen mehrjähriger Futterpflanzen auf die Ertragsbildung von Kulturpflanzen
Küpper, Paul Martin (2019-12-11)Seit dem Jahr 2007 wird ein mehrfaktorieller Feldversuch zu Früchtefolgen mit Feldfutterpflanzen auf dem Campus Klein-Altendorf nahe Bonn durchgeführt. Das Futter wird nicht geworben, sondern verbleibt nach Mulchschnitten ... -
Homotopy theory of s-bimodules, naive ring spectra and stable model categories
Weiner, Arne (2010-02-01)We study the homotopy theory of S-bimodules which essentially sequential spectra which admit a left and right action of the sphere specturm in a compatible way. The resulting category has non-symmetric monoidal product. ... -
Homotopy-Theoretic Studies of Khovanov-Rozansky Homology
Becker, Hanno (2015-07-29)This dissertation applies homotopy-theoretic methods to the study of Khovanov-Rozansky homology, a generalization of Khovanov homology (which in turn categorifies the Jones polynomial) that is constructed using categories ... -
Honey Bee Network in Africa: Co-creating a Grassroots Innovation Ecosystem in Africa
Gupta, Anil; Shinde, Chintan; Dey, Anamika; Patel, Ramesh; Patel, Chetan; Kumar, Vipin; Patel, Mahesh (2019-02)This paper presents a case study of the Honey Bee Network’s decentralized model for collecting, verifying and disseminating grassroots innovations and provides a roadmap for its replication in Africa. The ... -
Honorierung ökologischer Leistungen der Landwirtschaft: Einführung ergebnisorientierter Komponenten in das Kulturlandschaftsprogramm NRW
Holm-Müller, Karin; Henseleit, Meike; Möseler, Bodo Maria; Vollmer, Immo (2006)Ziel des vom nordrhein-westfälischen Ministerium für Umwelt und Naturschutz, Landwirtschaft und Verbraucherschutz in Auftrag gegebenen Projekts war es, zu untersuchen, wie eine sinnvolle ... -
Hormonal Interactions and Sex Matter: Neural and Behavioral Effects of Estradiol and Oxytocin
Coenjaerts, Marie Jeanne (2023-09-25)The sex hormone estradiol and the neuropeptide oxytocin induce a variety of behavioral and neural effects, but possible underlying interactions have not been tested in a sample involving both sexes. Thus, the current thesis ... -
Hormone und Demenz: Eine pharmakoepidemiologische Analyse
Hoffmann, Jeanette (2020-12-16)Die Untersuchung potentieller Risikofaktoren für eine Demenzerkrankung ist ein wichtiger Bestandteil der primären Prävention. Die weite Verbreitung der Einnahme von Hormonen und hormonbeeinflussenden Medikamenten für ... -
Host acceptability, suitability, interaction and establishment of two introduced Liriomyza leafminer endoparasitoids: Halticoptera arduine (Walker) (Hymenoptera: Pteromalidae) and Chrysocharis flacilla (Walker) (Hymenoptera: Eulophidae) in Kenya
Muchemi, Samuel Kagumba (2018-08-28)Liriomyza (Diptera: Agromyzidae) leafminers are pests of economic importance to the production of horticultural crops in East Africa. In the scope of a classical biological control program in East Africa, two ... -
The hot phase of the ISM: Investigation of the soft X-ray background
Pradas Simón, Juan Enrique (2004)In this thesis I present a quantitative solution of the soft X-ray radiation transfer through the Galactic interstellar medium. I focus on the Galactic Halo emission because its intensity distribution is thought to trace ... -
The Hotel of Algebraic Surgery
Kühl, Philipp (2014-07-09)We revisit the algebraic surgery theory and especially the proof of the total surgery obstruction.
The total surgery obstruction was defined by Ranicki for a finite n-dimensional Poincaré complex X as an element in ... -
Households at Risk: Integrated Assessment of Drought Hazard and Social Vulnerability in the Cuvelai-Basin of Angola and Namibia
Lütkemeier, Robert (2018-11-22)Droughts are phenomena that occur worldwide, in humid and arid environments as well as in the Global North and the Global South. They are considered as slow onset hazards that affect more people than any other natural ... -
How could science–policy interfaces boost food system transformation?: Food Systems Summit Brief Prepared by Research Partners of the Scientific Group for the Food Systems Summit, May 14th 2021
Hainzelin, Etienne; Caron, Patrick; Place, Frank; Alpha, Arlène; Dury, Sandrine; Echeverria, Ruben; Harding, Amanda (2021-05-14)The world’s food systems must be transformed to make healthier diets more accessible for all, while increasing the sustainability and resilience of these systems, as clearly called for in the 2030 Agenda for Sustainable ... -
How did Sweden manage the European Union?
Bjurulf, Bo (2001)From a Swedish perspective the Swedish Presidency during the spring of 2001 was the single most important European event since the accession in 1995. It has even been argued that for the first time since the Vienna conference ... -
How migrants made their way: The role of pioneering migrants and solidarity networks of the Wakhi of Gojal (Northern Pakistan) in shaping the dynamics of rural-urban migration
Benz, Andreas (2013-07)In this working paper, I investigate the role which solidarity networks based on different types of shared identities, perceived relatedness and kinship affiliations played for enabling, shaping, facilitating and intensifying ... -
How the South was won and the nation lost: the roots and repercussions of the Republican Party's southernization and evangelicalization
Adorf, Philipp (2016)The 2016 presidential election has shown that the Republican Party is at a crossroads. While a Trump candidacy took even the most seasoned political analysts by surprise, the rise of racially charged anti-elitism within ... -
How to Conduct Security Studies with Software Developers
Danilova, Anastasia (2022-07-13)As our everyday life depends on software and its security, studies with software developers become ever more important. Motivated by multiple security breaches caused by issues during software development, more studies ... -
How to control cyclic nucleotide signaling by light
Jansen, Vera; Jikeli, Jan F.; Wachten, Dagmar (2017-03-10)Optogenetics allows to non-invasively manipulate cellular functions with spatio-temporal precision by combining genetic engineering with the control of protein function by light. Since the discovery of channelrhodopsin has ... -
How to develop Knowledge and Skills for Mechanization in Africa: Historical examples from the United States and Germany
Daum, Thomas; Huffman, Wallace E.; Birner, Regina (2018-01)Agricultural mechanization is now high on the policy agenda of many African countries, yet few of these efforts emphasize the development of knowledge and skills. However, without the appropriate knowledge and skills, using ... -
How to engage smallholder producers in scaling the dairy and poultry sectors: Lessons from India
Konok, Khadeja Akter; Gulati, Ashok; Ritika, Juneja (2024-02)India is a land of smallholders and its dairy and poultry sectors are no exception. The average herd size of the dairy sector is less than four animals per household. Nevertheless, India is the largest milk producer in the ... -
How to keep tractors running in Africa?: Lessons for knowledge and skills development from Zambia
Thoelen, Jan; Daum, Thomas (2019-02)Successful agricultural mechanization requires building knowledge and skills of machinery owners, operators and technicians on how to manage, run, maintain and repair machinery. Building such knowledge and skills still ...