Auflistung nach Titel
Anzeige der Dokumente 4935-4954 von 10611
-
Homology Assessment in Molecular Phylogenetics: Evaluation, Improvement, and Influence of Data Quality on Tree Reconstruction
Kück, Patrick (2012-01-12)Considering the final goal of every phylogenetic analysis, the reconstruction of taxon relationships from underlying data, little attention has been paid to the role of alignment accuracy and its impact on tree reconstruction. ... -
Homology Computations for Mapping Class Groups, in particular for Γ03,1
Wang, Rui (2011-09-12)In this thesis we compute the homology of mapping class groups of orientable and non-orientable surfaces. The surfaces we consider are of genus <i>g</i>, have one boundary curve and <i>m</i> permutable punctures. The ... -
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 ... -
Die horizontale und vertikale Verbreitung der Vegetation im Himalaya
Schweinfurth, Ulrich (1957)The idea of attempting a geographical survey of the vegetation of the Himalayas was conceived when in 1937 Professor C. TROLL was travelling in the north-western and eastern parts of the hills (Nanga Parbat, Sikkim). The ... -
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)<em>Liriomyza</em> (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.<br /> The total surgery obstruction was defined by Ranicki for a finite n-dimensional Poincaré complex X as an element in ... -
Household food safety, dietary diversity and malnutrition in an urban context: Evidence from urban Ghana
Dzudzor, Makafui Isaac (2024-05-15)Food safety, dietary diversity and malnutrition are significant issues confronting urban households. A nutrition and epidemiological transition is occurring in developing countries, leading to a double burden of malnutrition ... -
Household migration decisions as survival strategy: The case of Burkina Faso
Konseiga, Adama (2006-04)The paper examines the basic determinants behind the process of migration from Burkina Faso to Cote d’Ivoire. It uses a detailed household survey dataset on migration, natural resource management, risk management and ... -
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 admitting migrants with any skills can help overcome a shortage of workers with particular skills
Stark, Oded; Byra, Łukasz (2018-11)A country that experiences a shortage of workers with particular skills naturally considers two responses: import skills or produce them. Skill import may result in large-scale migration, which will not be to the liking ... -
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 inheriting affects bequest plans
Stark, Oded; Nicinska, Anna (2015-11)We present and test the idea that bequest planning is linked with the experience of inheriting. We consider “a family tradition of bequeathing” as a channel through which the intention to bequeath is moulded by and is ...