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 120 for “"incubation time"”.
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Determination of the effects of caffeine C1, 3. 7- trimethylxanthine in Tris-based egg yolk extender and different incubation intervals on the quality of cryopreserved bull semen
… supplementation (0, 3, 5, and 8 mM), post-thaw incubation time (0-4 hours), and their interaction on quality parameters of cryopreserved bull semen. Semen samples were assessed for total motility, progressive motility, non-progressive motility, non-motile sperm cells, viability, acrosome …
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The Effects Of Equine Spermatozoa/Oocyte Co-Culture On Spermatozoal Acrosome Reaction And Viability
… for 15 minutes. At the completion of the incubation period, the sample was divided. One portion was returned to incubate for 4.5 hours. A viability stain, Hoechst 33258, was added to the second portion. Three groups of six salt-stored oocytes were inseminated with stained spermatozoa. …
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Pengaruh pemberian air perasan buah belimbing wuluh (Averrhoa bilimbi L.) dan garam NaCl terhadap kualitas ikan nila (Oreochromis niloticus)
… the combination of juice and salt with different incubation time. Effect of administration of fruit juice and salt fruit starfruit, on the quality of the fish, made with a variation of the incubation time is 0 hours, 12 hours, and 24 hours. The best treatment and control continued to be …
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Zeitabhängige Phänomene in athermischen Formgedächtnislegierungen
… are particularly suited for measurements of time dependent phenomena. Firstly optical measurements of Laser light reflectivity were conducted in order to measure incubation time as well as the stability of the phase transition temperatures Ms, As and the corresponding hysteresis width B. All …
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Mathematical modelling of the onset of transformation from austenite to pearlite under non-continuous cooling conditions
… of the Scheil additivity rule in relation to the incubation of the austenite decomposition. An "ideal" isothermal transformation curve for the start of transformation from austenite to pearlite has been developed based on the assumption of the consumed fractional incubation time being additive. …
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Crystallisation Behaviour and Heat Transfer Phenomenon of Fluoride-free Mould Fluxes for Steel Continuous Casting
… cooling was 7 degree Celsius/s and the shortest incubation time was 15 s at 1000 degree Celsius. Dominant precipitate was Ca2SiO4 at 950 and 1100 degree Celsius with minor Na2CaSi3O8 and Ca2MgSi2O7. Cuspidine was only found at 950 degree Celsius. For fluoride-free mould fluxes, the effects of …
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Assessing the Photoprotective Effects of Fluorescent Sphingomyelin Against UVB Induced DNA Damage in Human Keratinocytes
… alternatives [10]–[12]. In particular, 24 hour incubation with bovine milk sphingomyelin (BSM) has demonstrated photoprotective potential by reducing p21 and p53 levels in keratinocytes (KRTs) after UV radiation [13], [14]. This thesis aims to expand on past BSM research by exploring the …
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Limited-area growth of Ge and SiGe on Si
… torr). A period of delayed epitaxial growth, or "incubation time" was observed, and a Si surface treatment technique, consisting of a short SiGe pulse, with negligible SiGe thickness, was employed to realize uniform Ge films with low surface roughness (RMS<0.3 nm) and reduced incubation time (<20 …
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The detection of crevice corrosion in titanium and its alloys through the use of potential monitoring
… go/no go test which does not indicate crevice incubation time and propagation. This study focuses on the effectiveness of potential monitoring to detect the onset of crevice corrosion and propagation for several titanium alloys in chloride environments. Utilizing this technique, crevice …
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The tribological behaviour of a high nitrogen manganese austenitic stainless steel
… at different temperatures for different times and the results show an improvement in hardness. Under abrasion Hadfields manganese steel has the best abrasion resistance followed by the vanadium micro-alloyed steel, the high nitrogen alloy and then AISI 316 and AISI 304. The …
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Measurement of lipid peroxidation in biology models using gas-chromatography-aass spectrometry
… discharge into a gas chromatograph with time-of-flight mass spectral capabilities (GC-TOFMS) and were found to include the lipid peroxidation product hexanal. The pro-oxidant cumene hydroperoxide elevated the levels of these lipid peroxidation products, whereas the anti-oxidant butylated …
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Addressing the challenges facing deep learning based Specific Emitter Identification via preamble based waveforms
… SEI is still in its infancy, and has not had the incubation time for a tailor-suited approach to solve issues facing SEI. This thesis introduces methods of improving DL SEI using transforms to allow the networks to learn features that reduce computational cost and improve security. Overall, this …
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Studies of the Preparations and Use of Sol-Gel for Enzyme Immobilization and Analytical Applications.
… silica nanoparticles. Factors such as optimal incubation time of glucose solution, the reproducibility between different sol-gels, and the storage time were investigated. Good linearity and analytical results on real samples were obtained. The detection method was based on a colorimetric method …
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Cell Toxicology Study of RRR-Alpha-Tocopheryl Polyethylene Glycol 1000 Succinate (TPGS).
… death and decreased cell viability in a dose and time dependent manner. Cell death was evaluated fluorimetrically by employing the nucleic acid-binding fluorophore; propidium iodide. A colorimetric 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT) assay was used to evaluate …
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Reproductive success of sea turtles nesting on Wabasso Beach, East-Central Florida
… for signs of disturbance and hatching. After incubation (70 days), study nests were excavated and inventoried to determine hatchling emergence success. Parametric multiple regressions, nonparametric multiple regressions, and logistic regressions were used to determine the effects of several …
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Immunostimulatory and Cellular Toxic Effects of Single-Stranded RNA On Cancer Cells
… and toxic than 5'- 0H-ssRNA. If the incubation time of ssRNAs increased, the toxicity of ssRNAs would increase. Higher concentrations of ssRNA tended to be more toxic than lower concentrations of ssRNA. RIG-I (retinoic acid-inducible gene 1) plays a role in the recognition of 5' …
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Optimization of Growth Conditions of Selected Exo-Polysaccharides Producing Lactic Acid Bacteria in Whey Mineral Concentrate
… (WMC). The parameters studied were TS%, incubation temperature, overnight cooling, incubation time, pH, and the effects of added nutrients. The samples were analyzed for titratable acidity, pH and microbial counts at 4 h interval for 24 h. Viscosity of the fermented WMC at 20°C was …
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Selective Isolation of Circulating Tumor Cells in Antibody-Functionalized Microsystems
… such as cell suspension concentration, incubation time or ambient temperature that may affect the binding of cell to the functionalized surfaces. Specific capture of cells from suspensions increases exponentially with incubation time and linearly with concentration within the tested …
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Determining the solubility of haematin and haem-drug complexes at relevant pH in aqueous medium via spectrophotometric titration
… sodium hydroxide were performed. The optimal incubation time periods allowing for complete sample equilibration were determined to be 16 days at both 10°C and 20°C, 12 days at 25°C and 8 days at both 37°C and 50°C. The recrystallisation of haematin was determined to be unnecessary since …
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Development and Optimization of an Assay of Scp-2/Thiolase Activity in Rat Liver, and a Study of the Substrate Stereospecificity of Permfe-2
… as measured by C₃-CoA production over incubation time. The HPLC method used for this assay is a modification of Demoz et al.'s method for measuring short-chain fatty acyl-CoA derivatives in rat liver homogenates. It is demonstrated that the assay provides linear, reproducible results, …
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