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 19 of 19 for “"z-values"”.
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The Relationship of Writing Preference and Personality Type
… with 52 of 60 items registering significant Z-values at the .05 level. Further research should compare the dynamic patterns of scale interaction of regular MBTI type to writing process/MBTI personality type theory.
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Thermal inactivation of Salmonella and Escherichia coli O157:H7 in heat treated, recycled used cooking oil
… used cooking oil, (ii) estimate D- and z-values for a selective set of strains of Salmonella and E. coli O157:H7 in heat treated, recycled used cooking oil, and (iii) establish time/temperature processing steps targeting a selective set of strains of Salmonella and E. coli O157:H7 for use …
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Impacts of low-water activity food type on inactivation kinetics and models of foodborne pathogens treated with low-temperature, vacuum-assisted steam processing
… thermal treatments for LWAF. Comparing predicted values from internally constructed models to observed values generated from external data, models were shown to be limited in scope and application and could only be applied to pathogen inactivation on different LWAF or thermal processes in certain …
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Numerical Simulations in Electro-osmotic Flow
… numbers of 1 and 1800, and Z > 2500. Also, Z-values between 50 and 500 were studied to investigate the accuracy of the MWM. Results show that for Z-values greater than 100 the MWM shows good agreement with EOF.</p> <p>The dynamics of the developing flow field for the MWM were explored for …
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Investigation of protein biomarkers in HIV positive and HIV negative associated DLBCL
… detection function identified 1466 different m/z values from both the HIV negative and HIV positive DLBCL cases. There were only 50 exclusive m/z values that distinguished the DLBCL subtypes, Using LC-MS/MS we identified a total of 88 proteins, by comparing these proteins, we observed 6 …
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Sources of Variability in a Proteomic Experiment
… in this experiment. The variation in the m/z values as well as the variation in the intensities was studied, and the nested nature of the design allowed us to estimate the sources of that variation. The variation due to the machine components, including the mass spectrometer itself, was much …
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An urban planning perspective on the readiness of Thohoyandou CBD public spaces in dealing with the COVID-19 pandemic: a case study of Thohoyandou CBD
… (MRA) and analysis of standardised mean score z-values. Data screening procedures were employed using normality test measures of skewness and kurtosis. Results revealed that there are five critical issues that need to be addressed if we are to limit the spread of COVID-19 in public spaces. These …
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Evolutionary approaches for feature selection in biological data
… and mass spectrometry data with 300,000 m/z values. While the availability of such datasets can aid in the development of techniques/drugs to improve diagnosis and treatment of diseases, a major challenge involves its analysis to extract useful and meaningful information. The aims of this …
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Utility of Ion Mobility – Mass Spectrometry in Peptidoglycan Structural Determination
… structure by comparing their CCS and m/z values. Both species possess typical Gram-negative structures in-line with their classifications as Gram-negative species. The PG of L. platensis was found to contain agmatine as a modification to the D-iso-glutamic acid residue within the peptide …
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HPLC method development for the evaluation of pheromones from the dwarf African clawed frog Hymenochirus
… and relationship among the peaks at higher m/z values. The detail structure was inconclusive. vi</p>
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Increase in heat resistance of <u>Listeria monocytogenes</u> Scott A by sublethal heat shock
… heat shock condition was 45°C for 20 min where D-values at 55°C increased 2.3 fold in non-selective agar and 1.6 fold in selective agar in comparison to non-heat shocked cells. However, cells heat shocked at 48°C for 10 min gave more consistent results; these cells were heated at 50, 55, 60, and …
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Computational Analysis of LC-MS/MS Data for Metabolite Identification
… the framework, peaks are likely to have the m/z values that can give appropriate putative identifications. And important guidance for the metabolite verification is provided by prioritizing the putative identifications. Third, an MS/MS spectral matching algorithm is proposed based on support …
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Automated platform for histological race and sex comparison of human cortical bone
… using SPSS software. Significance and t/z values showed no differences and did not change overall hypothesis of the comparison tests. Which implies that the automated system is efficient for histological race and sex comparisons.
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Characterization of Oligosaccharides and Nanoparticles by MALDI-TOF Mass Spectrometry
… ions can be positively identified by their m/z values, distinctive isotopic patterns and characteristic PSD fragmentation patterns.
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Effect of scan time on resting state parameters
… study. Pearson's correlation coefficients (r-values) are calculated from each subject. The entire time series for one subject is divided into 31 subsections and the r-values are calculated between each consecutive subsection in a subject. In total, there are 30 r- values. To better understand …
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Inductively coupled plasma mass spectrometry with a twin quadrupole instrument using laser ablation sample introduction and monodisperse dried microparticulate injection
… for the simultaneous detection of two m/z values;The twin quadrupole ICP-MS is used with laser ablation sample introduction in both the steady state (10 Hz) and single pulse modes. Steady state signals are highly correlated and the majority of flicker noise cancels when the ratio is …
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Statistical analysis of end-points in cancer clinical trials
… median value of the square of the ratio of the z-values. Using this technique, and data from the 81 trials, the Mann-Whitney test is found to be around 40% more efficient than the Chi squared test of the total response rate (this increased efficiency is equivalent to increasing the recruitment to …
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Part I: Circular dichroism studies of optically active charge transfer complexes. Part II: vapor phase and solvent dependence circular dichroism studies of some terpenes, α-phenylethanol, and α-phenylethylamine
… and n-heptane. A linear relationship between Z-values (a solvent polarity scale) and the shift of the n→π* and π→π* transitions was found. A negative π→π* CE was found at 206 nm for (5R)-(-)-carvone whose CD spectra had previously been reported to 235 nm. (5R)-(-)-carvone with a <em>trans</em> …
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Heating of solid matter via laser generated electrons
… in the uniform heating. It was found that both Z values smaller and larger than Cu resulted in less uniform heating. Work then considered varying the I L & λ L with these producing contrasting results. Due to the strong dependence of the current density on λ L , the variation results in …