Search for dissertations about: "leaf"
Showing result 1 - 5 of 263 swedish dissertations containing the word leaf.
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1. To “leaf” or not to “leaf” : Understanding the metabolic adjustments associated with leaf senescence
Abstract : The adequate execution of the final developmental stage of a leaf, leaf senescence, is crucial to the long-term survival of the plant. During senescence cellular structures like membranes, proteins, lipids and macromolecules are degraded and released nutrients are relocated to developing parts of the plant, such as young leaves, stems, flowers, siliques and ultimately seeds that are dependent on this nutrient remobilization. READ MORE
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2. Discrete element simulation of elasto-plastic shock waves in high-velocity compaction
Abstract : Elasto-plastic shock waves in high-velocity compaction of spherical metal particles are the focus of this thesis which consists of four papers (A-D). The compaction process is modeled by a discrete element method while using elastic and plastic loading, elastic unloading and adhesion at contacts. READ MORE
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3. From green to yellow : a leaf story
Abstract : När ett blad gulnar genomgår det både morfologiska och metaboliska förändringar. Denna process benämns senescence och en förbättrad förståelse av dess mekanismer är viktiga både ur ett grundvetenskapligt perspektiv och för potentiella bioteknologiska applikationer. READ MORE
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4. The Cursed Leaf : An Anthropology of the Political Economy of Cocaine Production in Southern Colombia
Abstract : In this study, Oscar Jansson explores the relations mediating the distribution of surplus value in the sub-capitalist environment of cocaine production in Putumayo, Colombia. Analyzing the groups of actors in the chain of production in the tropical periphery, the study asserts that the transfer of surplus value from the peasant producers at the bottom of the cocaine economy to a significant extent is mediated by violence inflicted by paramilitary groups. READ MORE
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5. Morphological and chemical leaf traits of tropical montane tree species and their responses to warming
Abstract : Leaf morphological and chemical traits of tropical trees vary along climate gradients, but it is currently unclear how they will respond to a rapidly warming climate and how this will vary among species. Considering this, tropical trees native to East and Central Africa were investigated in three complementary studies in Rwanda. READ MORE