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 18 of 18 for “"Tropical areas"”.
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Design, fabrication, and testing of a mechanical timer in application of a stored-heat solar cooker
There is a large need in third-world tropical areas for a method of cooking in which users need minimal resources and traversing to heat food at night. A solution to this problem is to create a stored-heat solar cooker that may be left during the day and acquired at night to cook meals. Previously, …
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Dynamics of two South African floodplain forests
… for many riverine systems, particularly in tropical areas, and the potential consequences of changes in causal agents are unquantified.
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Nematofauna da planície de maré de Coroa Grande, Baía de Sepetiba, RJ
… were similar to those of different studies in tropical areas; nevertheless are low when compared to temperate areas. The general patterns of lhe trophic structure were associated with the change in the abundance of the three main genera: Comesoma, Daptonema e Oncholaimus. In spatial terms, …
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The aetiology and pathogenesis of tropical ulcer
Tropical ulcer is a very specific form of cutaneous ulceration. It occurs worldwide in most tropical and a number of subtropical areas. The disease occurs mainly in older children and young adults with children under the age of 5 and adults over 45 years rarely being affected. Ulcers occur most …
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Three essays on climate change, agriculture and adaptation
… The findings indicate that major crop yields in tropical and subtropical regions will likely suffer adverse effects, while temperate and continental areas, historically less favourable for agriculture, may experience mainly positive impacts. Under a medium development scenario, global crop …
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Toxicity assessment of pesticides and biopesticides on wild and managed bees (Hymenoptera, Apoidea), and richness evaluation in mediterranean and tropical agroecosystems
… different products marketed in Mediterranean and tropical areas, and some nanoformulations of essential oils (EOs) tested on pests but not yet commercialized. Lethal and sublethal effects caused by pesticides commonly used in Italian and Brazilian agroecosystems, including greenhouses, were …
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Investigation of the role of HSP70 in the uptake of Granzyme B by Malaria parasite-infected erythrocytes
… by female Anopheles mosquitoes which thrive in tropical and sub-tropical areas. Malaria is caused by five species from the genus Plasmodium, namely P. falciparum, P. vivax, P. ovale, P. malariae and P. knowlesi. P. falciparum causes the most severe form of the disease. P. falciparum has a …
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Use of an 18s rRNA metagenomics approach as a method of detection of multiple infections in field blood samples collected on FTA cards from cattle
… in humans and animals globally. Diseases in tropical and remote areas, sometimes known as neglected tropical diseases, pose some of the greater problems due to the difficulty in collecting and analysing samples. Collecting samples from remote and tropical areas is difficult, especially for …
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Trees and people : an anthropology of British campaigners for the Amazon Rainforest
… investigation conducted by Europeans in tropical areas. I understand the Amazon rainforest as one of the most important symbols of global environ-mentalism. As such, it is constituted by social, political and historical places and spaces that are highly contested by different groups, not …
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Evaluation of Chikungunya Virus Infectious Events in Aedes Albopictus LR and Aedes Aegypti WE Mosquito Vectors
… Aedes albopictus and Aedes aegypti mosquitoes in tropical areas of Africa, Asia, and the islands of the Indian Ocean. In 2007 and 2009, CHIKV was transmitted outside these tropical areas to cause localized infections in people in Italy and France. Here we describe early CHIKV infectious events in …
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A monograph of the freshwater ascomycete family Annulatascaceae: a morphological and molecular study
… a broad survey of freshwater temperate and tropical areas was conducted to collect these taxa for morphological examination, digital imagery, and extraction of DNA for phylogenetic inference. Thirty-five of roughly 70 described species in 21 genera of Annulatascaceae were assessed …
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Salvinia molesta: An Assessment of the Effects and Methods of Eradication
… the world. Since the 1930s, it has invaded most tropical and some temperate countries. <em>S. molesta </em>plants grow vegetatively and can increase in size rapidly. <em>S. molesta</em> can form thick mats of up to 1-meter-thick. There are a number of ways these thick mats negatively affect the …
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Habitat use and responses to odours by rodents in New Zealand
… sympatric here, although all four are in more tropical areas. All are pests for economic, public health and conservation reasons. The factors that might regulate the occurrence and interactions of rodents in New Zealand have not been identified and are poorly understood. A combination of …
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Exotic Species Invasion and Biodiversity in Bangladesh Forest Ecosystems
… patterns and drivers are two major issues in tropical forest ecosystems. This dissertation deals with these two issues in a tropical forest ecosystem in Bangladesh. Considering the first issue, it comprises two manuscripts: a systematic review and a field survey in Bangladesh forest ecosystem. …
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Genetic Control of Survival and Weight Loss during Pneumonic Burkholderia pseudomallei (Bp) Infection
… in Southeast Asia, northern Australia and other tropical areas. Transmission occurs through direct contact with the organism via ingestion, inhalation, or through open wounds and skin abrasions. Clinical presentation is extremely variable and can range from acute septicemia with bacterial …
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Hailstorm events over a maritime tropical region: a study of environments and microphysics of Surabaya hail events, Indonesia
… for predicting hail environments in maritime tropical areas, namely NetCAPE, which incorporates water-loading correction and accounts for the net values of CAPE and CIN across several atmospheric layers within the defined hail growth zone (HGZ), from freezing level up to –20°C. The median …
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Prophylaxis of disease caused by bacterial pathogens of man
… primarily in S. E. Asia, N. Australia and other tropical areas of the world. Melioidosis has recently appeared in temperate zones, including mainland France and the UK possible as a consequence of increased international travel. Acute disease can be treated with antibiotics but the bacterium can …
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Urban Design and Outdoor Thermal Comfort in Warm Climates. Studies in Fez and Colombo
In many developing tropical countries, rapid urban growth leads to several problems, including increased thermal stress. This has negative consequences for people's health and well-being, and affects social and commercial outdoor activities negatively. Consequently, the creation of thermally …