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Aufsatz
Awareness creation of smallholder farmers on and adoption of push-pull technology reduces fall armyworm (Spodoptera frugiperda) infestation on maize in Hawzien Woreda, Northern Ethiopia
(2020-11-28)
Recently, maize (Zea mays L.) production by smallholder farmers in Ethiopia has been threatened by an exotic pest called fall armyworm (FAW) (Spodoptera frugiperda J.E. Smith; Lepidoptera, Noctuidae). Devising or adopting sustainable, effective, affordable and smallholder farmers-friendly management strategies for the control of this pest are, therefore, vital. Push-Pull Technology (PPT) is considered one of the management methods for the control of FAW in East Africa. Therefore, the aim of this study is to determine ...
Teil eines Buches
Einleitung
(De Gruyter, 2020)
Dialoge sind die grundlegende Erscheinungsform von Kommunikation. Die Teilhabe an Wissen und kultureller Praxis ist in hohem Maße sprachlich gebunden und wird dialogisch vermittelt. Für diese Vermittlung ist das Gelingen von Gesprächen die Voraussetzung und dementsprechend ist die linguistische, literaturwissenschaftliche, kulturwissenschaftliche, soziologische oder philosophische Sprachbetrachtung reich an Modellen und Beschreibungen, die die Prinzipien und Bedingungen gelingender Gespräche zu begreifen versuchen.
Dissertation
Explicit Description Of Isogeny And Isomorphism Classes Of Drinfeld Modules Of Higher Rank Over Finite Fields
(2020)
When jumping from the number fields theory to the function fields theory, one cannot miss the deep analogy between rank 1 Drinfeld modules and the group of root of unity and the analogy between rank 2 Drinfeld modules and elliptic curves. But so far, there is no known structure in number fields theory that is analogous to the Drinfeld modules of higher rank r ≥ 3. In this thesis we investigate the classes of those Drinfeld modules of higher rank r ≥ 3 defined over a finite field L. We describe explicitly the Weil ...
Dissertation
The potential of UAV-based remote sensing for the prediction of aboveground biomass and N fixation in legume-grass mixtures
(2020-07)
The world population is growing steadily and with it the demand for meat and animal protein. A major source of feed for livestock is grassland, which serves as high quality and protein rich forage. In addition to permanent grassland, temporary grassland is a valuable crop rotation element, especially in organic farming, since legumes in legume-grass mixtures can fix atmospheric nitrogen (NFix). To further increase the intensification in agriculture, reliable non-destructive measurement techniques are needed as an ...
Dissertation
Towards A Better Understanding of Workplace Coaching: On Goal Activities, Exploration Practices, and Coaches’ Life Satisfaction
(2020)
Whereas there is a high and ever-increasing demand for coaching worldwide (International Coach Federation, 2016) and meta-analytical findings suggest that coaching is generally effective (e.g., Jones et al., 2016; Sonesh, Coultas, Lacerenza et al., 2015), little is still known about standards for “good” coaching practice (e.g., Bono et al., 2009; Vandaveer et al., 2016). Across three studies, this dissertation investigates relevant facets of coaching practice. It addresses the questions of how coaches practice workplace ...
Dissertation
Endozoochorer Transport von Pflanzendiasporen durch den Rothirsch (Cervus elaphus)
(2020)
Ziel der Arbeit ist es, den endozoochoren Ausbreitungserfolg über den Rothirsch für Pflanzenarten wertgebender Offenlandlebensräume zu untersuchen. Dazu wurden folgende Fragestellungen bearbeitet: (i) Welche Artenzusammensetzung weist das endozoochor transportierte Diasporenspektrum auf? (ii) Profitieren vor allem Offenlandarten von dieser Ausbreitungsweise und warum? (iii) Lassen Vergleiche zwischen angebotenem und transportiertem Artenspektrum auf flächenvernetzende Streifbewegungen im Rothirschlebensraum schließen? ...
Aufsatz
Evaluation of antioxidant activity of the phenolic composition of Syrian Arbutus andrachne L.
(2020-10-18)
Arbutus andrachne L. (Grecian Strawberry tree) is widespread in the Mediterranean and the Black Sea Regions. This study aimed at determining total phenolic content and antioxidant activity of Arbutus andrachne parts (flowers, leaves, bark and fruit) collected from different parts of the Latakia Province (Syria). Our work is the first to conduct this experiment on the selected plants in Syria.
The fresh samples were extracted using ethanol 50% as an extraction solution, then the total contents of the phenolic compounds ...
Dissertation
Simulationen und Experimente im Schwellenwertbereich zur Aufklärung der Risswachstumsmechanismen in einer Aluminiumlegierung
(2020)
Lange Risse, die bei Belastungen nahe des Schwellenwerts wachsen, können Ausbreitungscharakteristika zeigen, welche denen kurzer Stadium I-Risse ähneln. Neben einer lokalen Blockade der Rissfront durch Teilchen einer zweiten Phase ist ein schubspannungsgesteuerter Rissfortschritt ein interessanter Effekt, der bei diesen Belastungsbedingungen auftritt. Das berichtete Verhalten wird im Rahmen dieser Arbeit auf das Rissspitzenfeld zurückgeführt. Zu diesem Zweck wurden Risswachstumsexperimente mit angerissenen Flachproben ...
Aufsatz
Food traceability system awareness and agricultural operation: A Study of tea farms in Fujian, China
(2020-10-18)
China is establishing a Food Traceability System (FTS), but the policy implementation is behind most developed countries. The lack of FTS awareness may be a factor contributing to farming practices that are not consistent with FTS policies. Furthermore, the structure of an agri-food supply chain is a factor influencing farms’ compliance with FTS. The present study focuses on pesticide residue control and traceability issues in one of the largest tea production areas in China. It aims to examine the effect of FTS ...
Aufsatz
Farmers’ Supply Response and Perception of Rice Procurement Program in Bangladesh
(2020-10-18)
Rice farmers in Bangladesh do not get proper returns due to lower market prices and many unexpected situations that may affect the supply of rice production. To protect the farmers, the government introduced the rice procurement program. This study tried to analyse the supply response to rice production and assess the farmers’ perception of government procurement program including their financial risk of rice production. Vector autoregressive (VAR) model was employed to analyse the supply response of rice using ...