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Aufsatz
A comparative cost-benefit analysis between fairtrade certified and non-certified cocoa production in the South-West region of Cameroon
(2021-12-31)
In order to promote cocoa agroforestry by encouraging cocoa farmers to integrate fruit trees inside their cocoa orchards, cocoa certification was initially launched since 2012 in Cameroon. Nowadays, cocoa certification is adopted by a few farmers and makes up only 3% of the national cocoa production. Using the most predominant Fairtrade certification in the South-West region, this study compared certified and non-certified cocoa production via a cost-benefit analysis. The results indicated that, in spite of its ...
Aufsatz
Assessing African Energy Transitions: Renewable Energy Policies, Energy Justice, and SDG 7
(2021-02-26)
Renewable energy has made significant inroads in addressing growing energy demands on the African continent. However, progress towards SDG 7 is still limited and difficult to trace. Furthermore, the results-oriented rationale of the SDGs means that both policy change and the dimension of environmental justice are not covered properly. We argue that the energy justice concept may provide a powerful tool to offset looming trade-offs and enhance the co-benefits of SDG 7 within broader transition endeavours. In doing so, ...
Aufsatz
Effect of different mechanical seed scarification methods on germination and emergence dynamics of baobab (Adansonia digitata L.)
(2021-10-28)
The African baobab (Adansonia digitata L.) is a multipurpose fruit-producing tree that is indigenous to the African savannahs. Commercial interest in the species has grown in recent years. The major obstacle of seed-based propagation of baobab is its inherent seed dormancy. Therefore, in this study the effects of different mechanical seed scarification methods on seed germination parameters and seedling development of A. digitata were tested. The results show that mechanical scarification had a significant effect on ...
Lehrmaterial
Skriptum zur Linearen Algebra und Analytischen Geometrie
(2020-07)
Vorlesungsskript zur Vorlesung „Lineare Algebra und Analytische Geometrie“ an der Universität Kassel im Sommersemester 2020. Es handelt sich um die Druckversion.
Buch
Bildkonzepte in Produktion und Wahrnehmung
(2021-09)
Dieses Buch folgt einer technisch-soziologischen Intuition. Es handelt davon wie sich bildgebende Verfahren verändern und welchen Einfluss das Wissen über diese Prozesse auf die visuelle Wahrnehmung hat. Bilder treten uns heute in vielfältiger Art entgegen: z.B. als Werbeplakat, in Form von Gemälden, in Fotoalben, in Zeitungen oder im Internet. Jedes Medium stellt einen Rahmen bereit, der den Umgang mit den jeweiligen visuellen Informationen beeinflusst: Private Fotoabzüge werden in die Hand genommen und von Person ...
Aufsatz
Scaling up community-based goat breeding programmes via multi-stakeholder collaboration
(2020-05-01)
Community-based livestock breeding programmes (CBBPs) have emerged as a potential approach to implement sustainable livestock breeding in smallholder systems. In Malawi and Uganda, goat CBBPs were introduced to improve production and productivity of indigenous goats through selective breeding. Scaling up CBBPs have recently received support due to evidence-based results from current implementation and results of CBBPs implemented in other regions of the world. This paper explores strategies for scaling up goat CBBPs ...
Aufsatz
Mixed method survey of vegetable farming and rural farmers’ livelihood in Enugu State, Nigeria
(2021-12-07)
Studies on the role of agriculture on the improvement of livelihood of farmers have primarily focused on staple crops. Increased awareness on the importance of vegetables in urban and rural areas in Nigeria has led to a rise in demand of vegetables. In both rural and urban communities, smallholder farmers are responding to this demand by increasing vegetable production and thereby creating economic opportunity for themselves. The purpose of this paper is to assess the role of vegetable farming on rural farmers’ ...
Dissertation
Analysis of key pungent compounds in mustard products: A comparison of sensory and chemical–analytical determinations
(2020)
The consumption of mustard, horseradish and wasabi is characterized by a pungent sensation and lachrymatory effect primarily induced by allyl isothiocyanate (AITC). This study aimed to check the possible correlation between sensory-perceived pungency and the quality-determining pungency-inducing ingredients of mustard.
Primarily, the detection thresholds of sinigrin in a water-based matrix and AITC in water- and oil-based matrices were determined in a prestudy and a main study. In the prestudy, the resulting value ...
Aufsatz
Forage biomass availability, species diversity and seasonal variation in grazing behaviour of cattle in the outskirts of Ouagadougou
(2020-10-14)
In order to determine the exploitation of grazing areas in the outskirts of Ouagadougou by cattle herds, the grazing behaviour of cows was monitored in five villages in these during three distinct seasons, namely wet, cool dry and hot dry season. A vegetation study including a census of the woody and herbaceous stratum of grazing areas allowed for an assessment of the pasture biomass availability during the wet season. Results of the monitoring of cattle herds showed that the land type grazed by cattle in the outskirts ...
Aufsatz
Determination of fat, salt and sodium contents of selected fast food items available for sale in Colombo city, Sri Lanka: An approach to colour coding of fast foods
(2021-11-29)
Fast food has become a popular trend among Sri Lankan consumers. However, the nutritional facts of these food items that aid consumer awareness are scantly found in Sri Lanka. This study aimed to examine fat, salt and sodium contents of selected fast food types sold in Colombo city. A questionnaire-based survey was conducted to identify the fast food consumption patterns of the target population. Fat, salt and sodium contents of highly preferred fast food types selected based on the survey, namely; Chinese fish roll ...