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 22 for “"bloodmeal"”.
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Decoloured Bloodmeal Based Bioplastic
… is rich in protein. It is dried into low value bloodmeal and is used as animal feed or fertiliser. Previous work has shown that bloodmeal can be converted into a thermoplastic using water, urea, sodium dodecyl sulphate (SDS), sodium sulphite and triethylene glycol (TEG). This material is …
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Processing Extrudable Sheets using Decoloured Bloodmeal
… the feasibility of blending decoloured bloodmeal thermoplastic (DBT), a thermoplastic protein material, with poly (lactic acid) (PLA), a semi-crystalline polymer, and subsequently processing the blend into a sheet using extrusion. Free radical grafting was used to graft itaconic …
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Structural Changes and Chain Mobility During Processing of Bloodmeal-Based Thermoplastics
… Protein (NTP). NTP is produced from bloodmeal, a by-product of the meat industry which is 95% protein, by extruding with sodium sulphite, urea, sodium dodecyl sulphate, water and tri-ethylene glycol. Dynamic mechanical thermal analysis (DMA) and differential scanning calorimetry (DSC) …
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Bloodmeal determinants of Zika virus infection of Aedes (Stegomyia) aegypti mosquitoes
… in both flaviviruses and alphaviruses that bloodmeals taken from viremic animals are more infectious than artificial bloodmeals. Although this finding has been demonstrated to be at least in part mediated by clotting factors facilitating increased viral contact with the mosquito midgut …
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Bloodmeal analysis of urban Western Australian mosquito species for improved public health outcomes
… the two most prevalent arboviruses in Australia. Bloodmeal studies assist in improving the understanding of disease transmission cycles, which can consequently inform disease mitigation measures. This study involved the capture and analysis of bloodfed mosquitoes within metropolitan Perth to …
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Detection of the bloodmeal origin of mosquitoes collected at alligator farms, and West Nile Virus activity in mosquitoes collected from alligator farms, sentinel chicken surveillance sites, and larval habitats
… Louisiana alligator farms from 2004 to 2006. The bloodmeal origins of 237 field-collected mosquitoes were identified based on cytochrome B (cytb) sequence homology. Alligator blood was detected in 24 mosquitoes representing six species of mosquitoes. This is the first study that identified …
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Intersecting Threats: Exploring Obesity's Impact on Viral Pathogenesis and Transmission
… pathways were also altered in response to obese bloodmeal at various time-points post-bloodmeal; however, one gene, AAEL009965, was downregulated in the mosquito midguts 1-day-post-bloodmeal and its knockdown led to reduced infection rates and titers in mosquitoes. Through this thesis, we aimed …
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ANTI-MOSQUITO BEHAVIOR OF ADULT AND JUVENILE WHITE-FOOTED MICE (PEROMYSCUS LEUCOPUS) (TREEHOLE MOSQUITO, AEDES TRISERIATUS, EPIDEMIOLOGY)
… for mosquitoes, based on serological analysis of bloodmeals. However, due to limited survey and lack of sensitivity in most bloodmeal analyses, host species can be misrepresented or undetected. Knowledge of behavior of a potential host species can complement results of bloodmeal analysis, because …
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Effects of rumen-protected lysine supplement on growth and carcass traits in a traditional finishing scheme with crossbred beef steers
… (1,940 g of ground corn; NCTRL) supplemental bloodmeal (Perdue Ag Solutions; Salisbury, MD [1940 g of bloodmeal; BLDM]), 2 g of supplemental rumen-protected lysine (Smartamine ML; Adisseo, Atony, France [1,655 g of ground corn and 285 g of Smartamine ML; 2GSM]), and 4 g of rumen-protected …
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Arthropod and vertebrate determinants for horizontal transmission of Rickettsia felis
… with little fluctuation during the onset of flea bloodmeal acquisition and oogenesis. After characterizing R. felis replication in naturally infected fleas, we developed a biological assay to infect naïve fleas. This is the first demonstration of oral acquisition and persistent R. felis-infection …
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An Evaluation of Bed Bug (Cimex lectularius L.) Host Location and Aggregation Behavior
… aggregated together within 30 minutes of a bloodmeal.
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Identification of juvenile hormone response genes in newly emerged female Aedes aegypti
… and remain relatively high until a bloodmeal is consumed, while 20E titers remain very low throughout the entire stage. Thus, post-emergence development offers a unique opportunity to study the effects of JH in the absence of 20E. In this study, four potential JH response genes were …
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Protein-Intercalated Bentonite for Bio-composites
… high aspect ratio in matrix polymers such as in bloodmeal-based plastic, also known as Novatein Thermoplastic Protein or NTP. In NTP, the highest improvement in tensile strength and Young’s modulus was at 23 % (11.45 MPa) and 17 % (727.45 MPa) at 0.5 parts stickwater-modified NaBt per hundred of …
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Infection and Dissemination of TaV-GFP Tagged Sindbis in Aedine Mosquitoes and Cell Lines
… mosquitoes were challenged with a viremic bloodmeal at a titer of 107 PFU/ml and midguts were dissected over several days. The presence of GFP was observed in midgut columnar epithelial cells as early as day 3 p.i. and remained localized even at day 30 p.i. This is in agreement with …
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The tick response to Rickettsial dissemination during typical and atypical Rickettsial infection
… is highly upregulated in tick midguts during bloodmeal acquisition. The function of GST is known to be involved with detoxification and oxidative stress reduction, and acaricide resistance in ticks. Silencing of DvGST1 gene demonstrates significant reduction of mRNA and enzyme activity of …
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Characterization of the molecular and biological determinants of viral dissemination from the mosquito midgut: Yellow feber virus in Aedes aegypti
… of infection following uptake of an infectious bloodmeal- to infect the salivary glands and enter the saliva. The genetic determinants of viral dissemination from the midgut were characterized using the flavivirus yellow fever virus (YFV) in the Aedes aegypti mosquito as a model system. Fifteen …
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Immunological Crosstalk between Human Transforming Growth Factor-β1 and the Malaria Vector Anopheles stephensi
… We have determined that following a bloodmeal, active human TGF-β1 (hTGF-β1) persists in the midgut of A. stephensi for up to 48 hours. My data demonstrate that the midgut epithelium recognizes hTGF-β1 as an immunomodulatory cytokine. Specifically, induction of AsNOS by hTGF-β1 occurs …
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From Microarrays to Behavior: Genes Controlled by Feeding State in Mosquitoes and Flies
… behavior for forty-eight hours after taking a bloodmeal (Takken et al., 2001). We used whole genome microarrays to look for genes that are regulated in olfactory tissue by blood-feeding, and that therefore might function to modify olfactory driven host-seeking behavior according to nutritional …
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Molecular characterization and in vitro functional analysis of putative immunoprotective molecules in the soft tick, Ornithodoros savignyi
… the primary feeding event involves a bloodmeal on a vertebrate host. Such activities facilitate the ingestion of microorganisms which may be detrimental to the survival of a tick. It is observed, however, that ticks are able to survive such invasion by microorganisms and in several …
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Bionomics of vector-borne diseases in sites adjacent to lakes Victoria and Baringo in Kenya
… vertebrate hosts represented in mosquito bloodmeals, presence of arboviruses in blood fed mosquitoes and patients presenting with acute undiagnosed febrile illnesses in rural health facilities, and tick borne pathogens (TBPs) diversity in ticks of animals were identified. Mosquitoes were …
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