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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 19 of 19 for “"serial dilution"”.
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A comparison of the relative effectiveness of high and ultra high dilutions of abscisic acid prepared by serial dilution and succession as opposed to dilutions prepared by serial dilution alone, on the synthesis of alpha-amylase in barley endosperm half-seeds
Dissertation submitted in partial compliance with the requirements for the Master's Degree in Technology: Homoeopathy, Technikon Natal, Durban, South Africa, 2001.
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Development of limiting dilution viability pcr method to assess the effectiveness of selected biocides to treat indoor fungi growth
… and reliable alternative. The incorporation of serial dilution technique and viability information in PCR has made it suitable to evaluate the effectiveness of biocides. Thus, this study aimed to assess the antifungal ability of biocides, zinc salicylate (ZS), calcium benzoate (CB) and potassium …
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Identification and Characterization of Mitochondrial DNA Variants in Alzheimer's Disease
… optimizing quantitative techniques we found that serial dilution PCR and kinetic PCR yielded different deletion levels although both methods indicated a greater ratio of $\rm mtDNA\sp{\Delta 4977}$ in the caudate than in the parietal cortex of a cognitively intact control. By serial dilution PCR …
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Qualidade microbiológica de preparações líquidas comercializadas em farmácias magistrais de João Pessoa - PB.
… one at each pharmacy, which were analyzed by serial dilution m ethod with seeding surface suitable for both bacteria and for fungi culture media. The results it was observed that there was no growth of microorganisms in the samples, indicating that they are in accordance with the …
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Innovations in detecting food fraud using mass spectrometric platforms and chemometric modelling
… the preparation of burgers made through a serial dilution process impacted the quantitative abilities of the REIMS technology with limits of detection (LOD) for each adulterant being higher compared to those not made through serial dilution. Chemometric analysis of the four-meat species did …
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Implementing Inquiry-Based Learning in a General Microbiology Laboratory
… The experimental group was taught the concept of serial dilutions using an inquiry-based learning approach whereas the control group was taught using traditional teaching methods. Analysis of the data generated from the students' involvement in the investigation during the fall semester indicated …
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Development of a micromixing system for treatment of ORL 48 microtissues in different concentrations of cytochalasin B
Mixing and dilution are essential procedures in pharmaceutical operation to process two or more components in a separate or thoroughly mixed condition until homogenous solution was obtained. However, conventional serial dilution method used in laboratory assessment causes high usage of reagents, …
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Inactivation of Salmonella enterica and Enterococcus faecium on Whole Black Peppercorns and Cumin Seeds Using Steam and Ethylene Oxide Fumigation
… EtO fumigation process. Cells were enumerated by serial dilution and plating onto TSA with a thin overlay of selective media. Inoculation preparation influenced inactivation of Salmonella on peppercorns with greater reductions reported for TSA-grown cells compared to within a biofilm. To achieve …
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Self-Assembly of Calix[4]Arene Amine Derivatives
… had been expected. To this end a series of nOe, serial dilution, high temperature and HMBC NMR spectroscopic techniques were employed. The results of these revealed that self-assembly was occurring in solution and it is believed that two kinds of self-assembled structures are present, namely the …
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Mechanistic Study of Antimicrobial Cyclic Peptide [R4W4] Antibacterial Effectiveness against Methicillin-resistant Staphylococcus aureus (MRSA)
… or bactericidal using modified two-fold serial dilution and evaluates synergism of gentamicin and [R<sub>4</sub>W<sub>4</sub>] against <em>Escherichia coli</em> (<em>E. coli)</em> and Methicillin-resistant <em>Staphylococcus aureus</em> (MRSA) by checkered board assay. The MRSA resistant …
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Influence of Physiological State, Prolonged Dry Storage, and Passage through Simulated Digestion on the Survival and Gene Expression of Salmonella enterica sv. Tennessee
… 30 days. Salmonella survival was quantified by serial dilution onto brilliant green agar before desiccation, after desiccation, after 1-day storage and after 30-day storage. At each sampling both physiological states were tested for survival through a simulated gastrointestinal system. RNA was …
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Inactivation Of Salmonella And Surrogate Bacteria On Cashews And Macadamia Nuts Exposed To Saturated Steam And Propylene Oxide Treatments
… and the potential surrogates were enumerated by serial dilution, and plated onto TSA with overlay of XLT-4 (Salmonella) or media selective for the potential surrogates. Mean log reductions (CFU/g) of Salmonella and each potential surrogate were compared using a paired T-test. SS results: …
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Mouse Oocyte Maturation and Embryo Development After Exposure to Vemurafenib (PLX4032), an Anti-Melanoma B-RAF V600E Inhibitor
… tested by ex vivo culturing with Vemurafenib in serial dilution. Oocytes were evaluated by cell cycle morphology, spindle formation and chromosomal alignment by im munofluorescence (IF) staining as well as DNA integrity by Terminal Transferase dUTP Nick End Labeling. Embryo development was …
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Structure and Function Studies on tRNA Splicing Endonuclease
… effects of the mutations were examined through serial dilution growth assays and protein quantitation through western blotting and normalization of band intensity to the Pgk1 protein. In the course of my work, I have identified new information about how eukaryote-specific residues and domains of …
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Distribution and biosynthesis of LH-RH and structurally related peptides
… extracts of nineteen rat tissues were assayed in serial dilution for LH-RH immunoreactivity (LH-RH-IR). An antibody directed to the middle of the LH-RH sequence was used in these screening radioimmunoassays. LH-RH-IR was found in extrahypothalamic brain areas, in gastroenteropancreatic tissues, in …
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Evaluation of Escherichia coli O157:H7 and Salmonella enterica inactivation in water by several treatment technologies
… enterica. Bacterial viability was quantified by serial dilution and viable plate counting. Preliminary experiments were also done to develop methods and procedures, including the effect of refrigerated storage on E. coli viability in Tryptic Soy Broth and the development of E. coli and S. …
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Antimicrobial activity of fungal secondary metabolites isolated from pearl millet on gut microflora
… millet was bought from the local market and serial dilution was performed using distilled water. The solution of pearl millet with a dilution of 1:100 000 was plated on Sabouraud Dextrose Agar, it was then sub cultured until pure fungal isolates was obtained. Fungi were identified on the …
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Effect of Standard Post-harvest Interventions on the Survival and Regrowth of Antibiotic-Resistant Bacteria on Fresh Produce
… washed and stored carrots were subject to serial dilution and plated onto corresponding agar to enumerate total aerobic bacteria (R2A), aerobic bacteria tolerant or resistant to antibiotics (antibiotic-supplemented R2A), E. coli (Eosin Methylene Blue), and Pseudomonas spp. (Pseudomonas …
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Nutritional and Medicinal value of the edible stinkbug, Encosternum delegorguei Spinola consumed in the Limpopo Province of South Africa and its host plant Dodonaea viscosa Jacq. var. angustifolia
… inhibitory concentration (MIC) by using a serial dilution microplate method indicated low antibacterial activity (MIC > 2.5 mg/ml). Thongolifha therefore does not contain antibacterial compounds but there may be present in a low concentration or the serial dilution microplate method does …