Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 35 for “"food chains"”.
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Customer service as a strategic tool amongst independent retail food chains in KwaZulu-Natal
Submitted in fulfillment of the requirements for the Degree of Doctor of Philosophy: Management Sciences (Marketing), Durban University of Technology, Durban, South Africa, 2017.
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Population dynamics: general results from local analysis
… is used to formulate and study models of general food chains and food webs. This work illustrates that general models can be analysed in the framework of local bifurcation theory. In order to compute bifurcations efficiently a mathematical technique, the method of resultants, is derived. …
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Pesticides in the Aquatic Environment
… toxic in animals because they biomagnify in food chains to toxic levels. While other classes of insecticides and herbicides have been recognized as low level aquatic pollutants, their presence in surface waters has not been associated with direct toxicity to the egg stage of aquatic insects. …
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Customer Preferences in Small Fast-Food Businesses: A Multilevel Approach to Google Reviews Data
… study compares customer reviews of small fast-food businesses to national fast-food chains and builds executable recommendations to small businesses by analyzing 82,598 customer entries from Google Reviews. With text analysis tools and multilevel multinomial models, the study demonstrates that …
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Creating a Sustainable UK Farming and Food Industry: An Analysis of Partnership Thinking as a Solution to the Problems in the UK Farming and Food Industry
… as it pertains to the UK farming and food industry. This sector faces many serious economic problems. In response, the UK Government has developed policies and strategies to create profitable, sustainable and internationally-competitive farming and food chains. One policy has been to …
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Biophysical interactions in the Iceland Basin
… pushed northwards which adversely affects the food supply to juvenile Cod. Perhaps of more serious concern are concerns that the biological carbon pump may weaken as a result of increased thermal stratification and therefore reduce upward nitrate flux to drive nitrate-based export production. …
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Novel Biodegradable Poly (Glycolic Acid) Dual-Layer Packaging System Using Spray Coating
Polymer films are essential barriers for food and consumer packaging, but because they are durable, they contribute to accumulating waste that infiltrates ecosystems, enters food chains as microplastics, and overwhelms disposal systems. This research responds by developing a biodegradable packaging …
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No One Wants To Be A Parasitologist: The Shrinking Field of America's Least Favorite Animals
… animal populations in check to stabilizing food chains to driving evolution and biodiversity. While parasites can cause horrible human suffering, especially in countries without reliable clean water or sanitation systems, only a fraction of parasites affect humans, with estimates as low as …
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The Fabulist
… where strip malls and big box stores and fast food chains are being augmented in quiet magical realist fashion by something more sinister; and an ambiguously virtual game-world of Pooter's design, an RPG and DND-indebted land of endless quests and haunting vistas which may not have an exit. …
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Investigations of freshwater surface microlayers: comparisons of methods for sampling various microlayer thicknesses with observations on select chemical and microbiological features of microlayers of three aquatic ecosystems relative to the bulk of subsurface water
… of nutrients, incorporation of toxicants into food chains, and in the creation of aerosols containing coliform and pathogenic bacteria. Furthermore, the study of surface microlayers offers a more sensitive technique of monitoring aquatic environments for certain pollution parameters such as …
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An integrated decision support tool for more sustainable management of biomass resources in agricultural regions
… which can contaminate the soil, plant and food chains. These three issues have typically been considered separately, and managed by different agencies or organisations. The aim of this thesis is to develop an integrated decision support tool that can be used for evaluating alternative …
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DESIGN SISTEMICO E TERRITORIO Progettare relazioni virtuose tra agricoltura, produzione energetica e modelli di consumo.ALLEGATO B: ENERGIA DA e PER IL TERRITORIO
… subject to strict laws of supply and demand: the food has slowly transformed into an industrial product, on the one hand becoming increasingly affordable and abundant, but on the other more standard and approved. The intensification of production has necessitated the large-scale use of pesticides …
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Exploring the association between Hispanic mothers’ acculturation and children’s health outcome in the United States and Mexico: Considering family mealtime routines
… three main themes, 1) Mom shops and cooks the food, but kids and fathers command the food, 2) Family meals are different than before, and globalization is a contributing factor, and 3) Family time has shifted to weekend endeavors eating out at restaurants and fast food chains. These findings …
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Microbial food web interactions in two Long Island embayments
Phytoplankton mortality (herbivory) and bacterivory were examined experimentally in West Neck Bay and Coecles Harbor, Long Island, NY from April through September, 1998. Small algae (<5 μm diameter) dominated phytoplankton communities in both ecosystems throughout the summer, and zooplankton were …
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Nanomaterials and photonic solutions. Novel ‘at source’ approaches to stop hospital-derived priority substances reaching the sewer network.
… in non-target organisms and accumulate in food chains. As many drugs are present in wastewater at low concentrations, ranging from ng L-1 to μg L-1, current conventional treatment solutions are ineffective in removing often complex drug mixtures from wastewater. In this study a novel …
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Governance and change in the British seafood supply chain 1950 to 2013
… the supply, processing and consumption of seafood in Britain and achieved its sustainability, food safety and quality over the period 1950 to 2013 and secondly reflects on the implications for agri-food and governance theories in which the UK seafood chain has not previously been considered. …
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Exploring fast food consumption behaviours and social influence.
… increase in the consumption of convenience-style foods. This change has occurred concurrently with a global rise in obesity rates which has led to some researchers blaming the increased consumption of ‘big brand’ fast foods (such as McDonald’s) for expanding waistlines. Nutritional profiling in …
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Employee intention to leave a job: A case of Malaysian fast food industry
… of employees‟ turnover intentions in the fast food industry of Peninsular Malaysia and uses as determining variables items related to ‘job stressors’, ‘job stress’, ‘job satisfaction’ and ‘commitment’. This thesis also created one additional variable, ‘Job feeling‟ which was designed to include …
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A study of alternative techniques to mercury amalgamation for gold extraction in artisanal and small-scale gold mining
… river ecosystems, inevitably finding its way to food chains. Due to these issues, alternative technologies such as borax smelting, the Gemini table, thiosulphate, cyanide, chlorine, and urea leaching, to name a few, have been developed or adapted over the years to substitute mercury. However, …
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The effect of recreational fishing on targeted fishes and trophic structure, in a coral reef marine park
Recreational line fishing is highly targeted at predatory fishes, making them vulnerable to overfishing. These same fishes play a role in trophic structure by regulating prey species. Despite increasing numbers of fishers, few studies have investigated the potential effects of recreational fishing …
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