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Dissertations / Theses on the topic 'Sampler comparison'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Shomody, Melissa A. "Aerosol Samplers Comparison: IOM Dual Sampler (Inhalable & Respirable) vs Conventional Methods for Assessing Welders Exposure to Manganese." University of Toledo Health Science Campus / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=mco1365152938.

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2

Tomashuk, Timothy A. "A comparison of atmospheric PAHs in pine needles and high-volume sampler filters in the dayton metro area." Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1278966475.

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3

Norheim, Stein. "Computer Support Simplifying Uncertainty Estimation using Patient Samples." Thesis, Linköpings universitet, Medicinsk informatik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-68278.

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In this work, a practical approach to assessing bias and uncertainty using patient samples in a clinical laboratory is presented. The scheme is essentially a splitsample setup where one instrument is appointed to being the “master” instrument which other instruments are compared to. The software presented automatically collects test results from a Laboratory Information System in production and couples together the results of pairwise measurements. Partitioning of measurement results by user-defined criteria and how this can facilitate isolation of variation sources are also discussed. The log

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4

Choi, Sujung. "On two-sample data analysis by exponential model." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2653.

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We discuss two-sample problems and the implementation of a new two-sample data analysis procedure. The proposed procedure is based on the concepts of mid-distribution, design of score functions, components, comparison distribution, comparison density and exponential model. Assume that we have a random sample X1, . . . ,Xm from a continuous distribution F(y) = P(Xi y), i = 1, . . . ,m and a random sample Y1, . . . ,Yn from a continuous distribution G(y) = P(Yi y), i = 1, . . . ,n. Also assume independence of the two samples. The two-sample problem tests homogeneity of two samples and formall

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5

Callan, Peggy Ann. "Developmental sentence scoring sample size comparison." PDXScholar, 1990. https://pdxscholar.library.pdx.edu/open_access_etds/4170.

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In 1971, Lee and Canter developed a systematic tool for assessing children's expressive language: Developmental Sentence Scoring (DSS). It provides normative data against which a child's delayed or disordered language development can be compared with the normal language of children the same age. A specific scoring system is used to analyze children's use of standard English grammatical rules from a tape-recorded sample of their spontaneous speech during conversation with a clinician. The corpus of sentences for the DSS is obtained from a sample of 50 complete, different, consecutive, intelligi

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6

Grafström, Anton. "Comparisons of methods for generating conditional Poisson samples and Sampford samples." Thesis, Umeå universitet, Institutionen för matematik och matematisk statistik, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-51321.

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Methods for conditional Poisson sampling (CP-sampling) and Sampford sampling are compared and the focus is on the efficiency of the methods. The efficiency is investigated by simulation in different sampling situations. It was of interest to compare methods since new methods for both CP-sampling and Sampford sampling were introduced by Bondesson, Traat & Lundqvist in 2004. The new methods are acceptance rejection methods that use the efficient Pareto sampling method. They are found to be very efficient and useful in all situations. The list sequential methods for both CP-sampling and Sampf

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7

Yount, William R. "A Monte Carlo Analysis of Experimentwise and Comparisonwise Type I Error Rate of Six Specified Multiple Comparison Procedures When Applied to Small k's and Equal and Unequal Sample Sizes." Thesis, North Texas State University, 1985. https://digital.library.unt.edu/ark:/67531/metadc332059/.

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The problem of this study was to determine the differences in experimentwise and comparisonwise Type I error rate among six multiple comparison procedures when applied to twenty-eight combinations of normally distributed data. These were the Least Significant Difference, the Fisher-protected Least Significant Difference, the Student Newman-Keuls Test, the Duncan Multiple Range Test, the Tukey Honestly Significant Difference, and the Scheffe Significant Difference. The Spjøtvoll-Stoline and Tukey—Kramer HSD modifications were used for unequal n conditions. A Monte Carlo simulation was used for

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8

Glassford, Eric. "Comparison of Grab, Air, and Surface Results for Radiation Site Characterization." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1307442130.

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9

Siluyele, Ian John. "Power studies of multivariate two-sample tests of comparison." Thesis, University of the Western Cape, 2007. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6355_1255091702.

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<p>The multivariate two-sample tests provide a means to test the match between two multivariate distributions. Although many tests exist in the literature, relatively little is known about the relative power of these procedures. The studies reported in the thesis contrasts the effectiveness, in terms of power, of seven such tests with a Monte Carlo study. The relative power of the tests was investigated against location, scale, and correlation alternatives.</p>

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10

Axelsson, Anneli. "A comparison between bulk tank milk samples and individual milk samples from dairy herds in Uruguay." Uppsala : SLU (Swedish University of Agricultural Sciences), 2004. http://vfak-epsilon.slu.se/archive/00000059/01/annelie-b.pdf.

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11

Tong, Bo. "More accurate two sample comparisons for skewed populations." Diss., Kansas State University, 2016. http://hdl.handle.net/2097/35783.

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Doctor of Philosophy<br>Department of Statistics<br>Haiyan Wang<br>Various tests have been created to compare the means of two populations in many scenarios and applications. The two-sample t-test, Wilcoxon Rank-Sum Test and bootstrap-t test are commonly used methods. However, methods for skewed two-sample data set are not well studied. In this dissertation, several existing two sample tests were evaluated and four new tests were proposed to improve the test accuracy under moderate sample size and high population skewness. The proposed work starts with derivation of a first order Edgeworth ex

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12

Aydogdu, Birsu. "Comparison Of Sorption Capacities On Different Samples Of Mcm-41." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615610/index.pdf.

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ABSTRACT COMPARISON OF SORPTION CAPACITIES OF HYDROCARBONS ON DIFFERENT SAMPLES OF MCM-41 AYDOGDU, Birsu M. Sc., Department of Chemical Engineering Supervisor: Prof. Dr. Hayrettin Y&Uuml<br>CEL Co-Supervisor: Prof. Dr. G&uuml<br>rkan KARAKAS January 2013, 69 pages MCM-41(Mobil Composition Matter-41) is one of the three members of M41S family and has a highly ordered hexagonal honeycomb like structure with a narrow pore size distribution in mesopore range, high surface area, high pore volume and high thermal stability. These features make MCM-41 proper to use for adsorption, catalysis,

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13

Barton, William H. "COMPARISON OF TWO SAMPLES BY A NONPARAMETRIC LIKELIHOOD-RATIO TEST." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_diss/99.

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In this dissertation we present a novel computational method, as well as its software implementation, to compare two samples by a nonparametric likelihood-ratio test. The basis of the comparison is a mean-type hypothesis. The software is written in the R-language [4]. The two samples are assumed to be independent. Their distributions, which are assumed to be unknown, may be discrete or continuous. The samples may be uncensored, right-censored, left-censored, or doubly-censored. Two software programs are offered. The first program covers the case of a single mean-type hypothesis. The second pro

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14

Seward, Ryan. "Geothermal Fluid Equilibrium Modeling: Comparison of Wellhead Fluid Samples to Deep Samples in the Reykjanes System, Iceland." Thesis, University of Oregon, 2014. http://hdl.handle.net/1794/17933.

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Single phase geothermal fluids sampled in 2007 from 1500m depth in Well RN-12 of the Reykjanes geothermal system in Iceland show large differences in dissolved copper, zinc and iron concentrations when compared with fluid sampled from the wellhead. Equilibrium modeling of the samples taken at depth indicate that the fluid was supersaturated in sulfide minerals even at moderately acidic pH values, suggesting that the deep samples, as collected, are out of equilibrium. Wellhead sample reconstructions indicate a well-bottom pH of about 5.5 at 295°C, but a pH of 3.6 at saturation with chalcopyri

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15

Macklin, Diana C. "A comparison of cholesterol measurements via various blood sample types." Virtual Press, 1991. http://liblink.bsu.edu/uhtbin/catkey/774768.

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There has been inconsistencies in the performance of dry-chemistry analyzers using different blood sample types. Therefore, the purpose of this study was to determine precision and accuracy of both capillary and venous whole blood analyzed by the Reflotron (Boehringer Mannheim Diagnostics, Indianapolis, Indiana) and capillary plasma analyzed by the Ektachem DT60 (Eastman Kodak Company, Rochester, New York). Fifty subjects were recruited to provide a representative sample of cholesterol concentrations. One technician performed two fingerstick punctures and one venipuncture on each subject and a

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16

Seitshiro, Modisane Bennett. "Two-sample comparisons for serially correlated data / M.B. Seitshiro." Thesis, North-West University, 2006. http://hdl.handle.net/10394/1118.

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The purpose of this study is to derive new tests for the equality of the means in two independent or dependent stationary time series, based on bootstrap critical values. Required properties of these tests include satisfactory probability of Type I errors, and high power. It is shown how critical points for various sample sizes and significance levels can be obtained by applying the parametric bootstrap. A limited Monte Carlo simulation study is conducted to illustrate the validity of the bootstrap approximation of the exact critical values, by producing satisfactory probability of Type I erro

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17

Haidar, Belan. "Comparison of four transport systems for enetric pathogens." Thesis, Uppsala universitet, Institutionen för medicinsk biokemi och mikrobiologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-155077.

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ABSTRACT: Commercial swab transport systems are used for collection and transporting of fecal and other microbiological samples. This system must maintain viability and contribute to survival of microorganisms during transport to the laboratory. Four swab transport systems have been compared, eSwab, Σ- Transwab and fecalSwab, all three with flocked swabs, and Copan Venturi Transystem with rayon swabs. The study followed the recommendations from the Clinical Laboratory Standard Institute; document M40-A for recovery of Samonella, Shigella, Yersinia and Neisseria gonorrhoeae after storage for 0,

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18

DeBord, Joshua S. "Predicting the Geographic Origin of Heroin by Multivariate Analysis of Elemental Composition and Strontium Isotope Ratios." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3802.

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The goal of this research was to aid in the fight against the heroin and opioid epidemic by developing new methodology for heroin provenance determination and forensic sample comparison. Over 400 illicit heroin powder samples were analyzed using quadrupole and high-resolution inductively-coupled plasma mass spectrometry (Q-ICP-MS and HR-ICP-MS) in order to measure and identify elemental contaminants useful for associating heroin samples of common origin and differentiating heroin of different geographic origins. Additionally, 198 heroin samples were analyzed by multi-collector ICP-MS (MC-ICP-M

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19

Toscano, Jacqueline. "A comparison of language sample elicitation methods for dual language learners." Master's thesis, Temple University Libraries, 2017. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/467819.

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Communication Sciences<br>M.A.<br>Language sample analysis has come to be considered the “gold standard” approach for cross-cultural language assessment. Speech-language pathologists assessing individuals of multicultural or multilinguistic backgrounds have been recommended to utilize this approach in these evaluations (e.g., Pearson, Jackson, & Wu, 2014; Heilmann & Westerveld, 2013). Language samples can be elicited with a variety of different tasks, and selection of a specific method by SLPs is often a major part of the assessment process. The present study aims to facilitate the selection o

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20

Liu, Xuerong. "Comparison of Methods For Estimating Tissue Components In Mixed Tissue Sample." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1467971800.

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21

Coleman, Emma Elizabeth. "Comparisons of Design Thinking for Engineering Education." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/85867.

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Design thinking ability is vital for engineers who are tasked with solving society's toughest sustainable development challenges. Prior research identified that the percentage of design thinkers among freshmen engineering students is greater than the percentage among the general population. However, engineering education's lack of attention to fostering creative ability may cause the design thinking ability of senior engineering students to suffer. The research addressed in this thesis compares the design thinking ability of engineering students across age groups, and compares design thinking

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22

Hagardson, Karin. "Comparison of DNA isolation methods to detect Leishmania parasites in blood samples." Thesis, Uppsala University, Department of Medical Biochemistry and Microbiology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7014.

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<p>Leishmaniasis is a disease affecting more than 12 million people worldwide. It is caused by the protozoan parasite Leishmania, which is transmitted to humans and dog hosts through bites of infected sand flies belonging to genus Phlebotomine. Several studies have shown Polymerase Chain Reaction (PCR) to be effective for the diagnosis of VL in clinical samples compared to the classical methods. The aims of this study were first to compare four different sample preparation methods for the PCR diagnosis of visceral leishmaniasis (VL) using peripheral blood samples and furthermore to find a meth

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23

Chun, DaHyun. "Parent-Child Discrepancy: A Comparison of U.S. and South Korean Clinical Samples." Ohio : Ohio University, 2008. http://www.ohiolink.edu/etd/view.cgi?ohiou1213814047.

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24

Bofill, Roig Marta. "Statistical methods and software for clinical trials with binary and survival endpoints : efficiency, sample size and two-sample comparison." Doctoral thesis, Universitat Politècnica de Catalunya, 2020. http://hdl.handle.net/10803/670371.

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Defining the scientific question is the starting point for any clinical study. However, even though the main objective is generally clear, how this is addressed is not usually straightforward. Clinical studies very often encompass several questions, defined as primary and secondary hypotheses, and measured through different endpoints. In clinical trials with multiple endpoints, composite endpoints, defined as the union of several endpoints, are widely used as primary endpoints. The use of composite endpoints is mainly motivated because they are expected to increase the number of observed even

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25

McIntee, Gill Mary Sophie. "Dissociative symptoms in a deliberate self-harm and comparison female adolescent sample." Thesis, Bangor University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367311.

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26

Nortje, W. D. "Comparison of Bayesian learning and conjugate gradient descent training of neural networks." Diss., University of Pretoria, 2001. http://hdl.handle.net/2263/29327.

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Neural networks are used in various fields to make predictions about the future value of a time series, or about the class membership of a given object. For the network to be effective, it needs to be trained on a set of training data combined with the expected results. Two aspects to keep in mind when considering a neural network as a solution, are the required training time and the prediction accuracy. This research compares the classification accuracy of conjugate gradient descent neural networks and Bayesian learning neural networks. Conjugate gradient descent networks are known for their

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27

Ho, Louis. "The effects of individualism-collectivism on brainstorming, a comparison of Canadian and Taiwanese samples." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ39084.pdf.

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28

Alrutz, Neen Blackwell. "A comparison of weight gains during pregnancy of WIC and non-WIC clinic samples." Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/41631.

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<p>The purpose of this study was to find the difference, if any, between the weight gain patterns during pregnancy of women attending public health clinics in Northern Virginia who were enrolled in the NIC program and women not enrolled in the NIC program. Women on the NIC program during pregnancy were identified from NIC files. The control group was chosen from among women who were shown to be both nutritionally at risk and eligible for NIC based on income, but who were not receiving NIC benefits during pregnancy.</p> <p> The sample consisted of M8 subjects in each group who met ce

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29

Lu, Pingbo. "Calibrated Bayes factors for model selection and model averaging." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343396705.

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30

Senteney, Michael H. "A Monte Carlo Study to Determine Sample Size for Multiple Comparison Procedures in ANOVA." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou160433478343909.

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31

Zhu, Wenzhen. "Adult Attachment, Cultural Orientation and Sacrifice in Couples: A Comparison between American and Chinese Samples." Thesis, University of North Texas, 2019. https://digital.library.unt.edu/ark:/67531/metadc1538783/.

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The present study examined the effects of adult attachment and cultural orientation on sacrifice behaviors and the corresponding emotional reactions, using a cross-cultural sample in the U.S. and China. Strain-tests protocol was utilized in this study, in which an individual (i.e., the asker) was asked to share with their romantic partner a personal goal that required a major sacrifice from their partner (i.e., the responder), and then entered a discussion to process their plan of carrying out this goal. The final sample included 115 couples from the U.S. and 99 couples from China. Results ind

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32

Holbrook, Kathryn Elizabeth. "The comparison of the alternate Mediterranean diet score (aMed) and MedDietScore (MDS) in American samples." Thesis, Rush University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10647601.

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<p> <b>Objectives:</b> The purpose of this study was to assess the relationship between two Mediterranean diet indices and to evaluate the proportion of participants who were ranked into identical tertiles of accordance with the Alternate Mediterranean Diet (aMed) and MedDietScore (MDS) tools when applied to an American samples.</p><p> <b>Methods:</b> In this secondary analysis, participants from four samples were pooled into two groups – one in which respondents completed the web-based VioScreen™ (n=200) food frequency questionnaire (FFQ) and the second, those who completed a pa

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33

Guo, Ruijuan. "Sample comparisons using microarrays -- application of false discovery rate and quadratic logistic regression." Worcester, Mass. : Worcester Polytechnic Institute, 2007. http://www.wpi.edu/Pubs/ETD/Available/etd-010808-173747/.

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34

Guo, Ruijuan. "Sample comparisons using microarrays: - Application of False Discovery Rate and quadratic logistic regression." Digital WPI, 2008. https://digitalcommons.wpi.edu/etd-theses/28.

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In microarray analysis, people are interested in those features that have different characters in diseased samples compared to normal samples. The usual p-value method of selecting significant genes either gives too many false positives or cannot detect all the significant features. The False Discovery Rate (FDR) method controls false positives and at the same time selects significant features. We introduced Benjamini's method and Storey's method to control FDR, applied the two methods to human Meningioma data. We found that Benjamini's method is more conservative and that, after the number of

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35

Atkinson, Michael Henry. "Comparison of volunteer and referred children on individual measures of assessment: A Native American sample." Diss., The University of Arizona, 1994. http://hdl.handle.net/10150/186932.

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The WISC-III, Wechsler Individual Achievement Test (WIAT) and Clinical Evaluation of Language Fundamentals-Revised (CELF-R) were administered to groups of volunteer and referred Native American students who attended the Page Unified School District. The volunteer sample was randomly selected from all Native Americans attending first grade. The referred group included students ranging in age from six to eleven years who had previously been identified for a speech/language and/or comprehensive evaluation. The purpose of the study was to determine if the development of local norms was necessary t

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36

Buitrago, Sara Jan. "A COMPARISON OF STIMULUS PAIRING OBSERVATIONAL PROCEDURES AND MATCHING TO SAMPLE PROCEDURES WITH KINDERGARTEN STUDENTS." OpenSIUC, 2014. https://opensiuc.lib.siu.edu/theses/1455.

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Stimulus Pairing Observational Procedure (SPOP) is an incidental teaching type procedure that has shown success in teaching typically developing children to name, independent tacting in the absence of the verbal community following a history of listener and echoic responses. The purpose of the current study was to compare SPOP and matching to sample procedures to determine the rate of acquisition for correct tact and listener responding , the rate of off task be avior, and the rate of generalization to different settings, stimuli, and instructors. Results of the study indicate that correct r

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37

O'Reilly, Maria Therese. "Quality of life for carers of people with dementia : a comparison between rural and metropolitan samples /." [St. Lucia, Qld.], 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17632.pdf.

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38

Pinkerton, Susan A. "The assessment of phonological processes : a comparison of connected-speech samples and single-word production tests." PDXScholar, 1990. https://pdxscholar.library.pdx.edu/open_access_etds/4191.

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The purpose of this study was to determine if single-word elicitation procedures used in the assessment of phonological processes would have highly similar results to those obtained through connected speech. Connected speech sampling provides a medium for natural production with coarticulatory influence, but can be time-consuming and impractical for clinicians maintaining heavy caseloads or working with highly unintelligible children. Elicitation through single words requires less time than a connected-speech sample and may be more effective with highly unintelligible children because the cont

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39

Brunsch, Brian. "Comparison of post-harvest sample designs to assess impact to organic forest soils in eastern Manitoba." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ64714.pdf.

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40

Bembry, Earl Dan. "Comparison of Ammonia and Particulate Matter Air Sample Concentrations at Task-Locations within Swine Confinement Buildings." Digital Commons @ East Tennessee State University, 2009. https://dc.etsu.edu/etd/1880.

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Introduction: A task-associated analysis of ammonia and particulate matter concentrations was conducted on swine farms in breeding and gestation barns. The purpose of this study was to determine if specific tasks performed by workers increase concentrations of ammonia and particulate matter exposure. Methods: An exploratory, descriptive design was used to determine if swine confinement workers have increased ammonia and particulate matter exposure when performing assigned tasks in breeding and gestation barns. A convenience sample of 8 workers volunteered from among all breeding and gestation

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Thompson, Kenny, Loyd Lee Glenn, and Daren Vertein. "Comparison of Masculine and Feminine Traits in a National Sample of Male and Female Nursing Students." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etsu-works/7518.

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The stereotype that male nurses are less masculine has existed for generations and spans all age groups. Several studies have investigated masculinity and femininity in nurses using the Bem Sex-Role Inventory, but the results are conflicting and inconclusive. Therefore, a nationwide survey was conducted across the United States that examined the sex-role identity of individuals who chose nursing as a career path. Twenty-eight males and 81 females from 37 states completed the survey. The males and females in the study both had higher mean scores on masculinity and femininity scales when compare

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Brown, Kristopher J. "A Comparison of Match-to-Sample and Respondent Training of the Blocking Effect in Equivalence Classes." Youngstown State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1403280691.

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Grubb, Emma Joy. "A comparison of the abstract problem solving abilities of a forensic sample to a sample of mental age equivalent children on the Kaufman Brief Intelligence Test /." Title page, table of contents and abstract only, 2003. http://web4.library.adelaide.edu.au/theses/09SPS/09spsg8851.pdf.

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44

Flyckt, Andreas. "Comparison of 2D and 3D investigations of non-metallic inclusions in metal samples by different analytical methods." Thesis, KTH, Materialvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254379.

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The objective of this research is to make a comparison between 2D- and 3D-investigations of non-metallic inclusions (NMIs) in metal samples by different analytical methods. NMIs are undesired particles that degrade the quality of the steel through affecting the mechanical properties. It’s therefor of great importance that NMIs are carefully examined, and the correct investigation method is used depending on what the objective is. The different parameters that were used in this comparison was composition, location, morphology, number and size. The first step in this research was to complete a l

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45

Chang, LinChiat. "A comparison of samples and response quality obtained from RDD telephone survey methodology and internet survey methodology /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486399160104552.

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Zhao, Yanchun. "Comparison of Proposed K Sample Tests with Dietz's Test for Nondecreasing Ordered Alternatives for Bivariate Normal Data." Thesis, North Dakota State University, 2011. https://hdl.handle.net/10365/28836.

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There are many situations in which researchers want to consider a set of response variables simultaneously rather than just one response variable. For instance, a possible example is when a researcher wishes to determine the effects of an exercise and diet program on both the cholesterol levels and the weights of obese subjects. Dietz (1989) proposed two multivariate generalizations of the Jonckheere test for ordered alternatives. In this study, we propose k-sample tests for nondecreasing ordered alternatives for bivariate normal data and compare their powers with Dietz's sum statistic. The pr

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DeFulio, Anthony L. "A Comparison of Auditory and Visual Stimuli in a Delayed Matching to Sample Procedure with Adult Humans." Thesis, University of North Texas, 2002. https://digital.library.unt.edu/ark:/67531/metadc3349/.

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Five humans were exposed to a matching to sample task in which the delay (range = 0 to 32 seconds) between sample stimulus offset and comparison onset was manipulated across conditions. Auditory stimuli (1” tone) and arbitrary symbols served as sample stimuli for three (S1, S2, S3) and two (S4 and S5) subjects, respectively. Uppercase English letters (S, M, and N) served as comparison stimuli for all subjects. Results show small but systematic effects of the retention interval on accuracy and latency to selection of comparison stimuli. The results fail to show a difference between subjects exp

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48

Ramotsehoa, Motsheoa Cynthia. "Comparative evaluation of the performance of aerosol samplers for the assessment of soluble platinum exposure / Motsheoa Cynthia. Ramotsehoa." Thesis, 2014. http://hdl.handle.net/10394/13410.

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The primary focus of this study was to compare the efficiency of six filter samplers in the collection of inhalable soluble platinum (Pt) salts at a South African base metal refinery. Inhalation remains the major route of occupational exposure to platinum groups metals (PGMs). South Africa would benefit from the study since it’s amongst the major countries where PGMs are produced and hence, monitoring of worker exposure with the most efficient sampler is of utmost importance. The IOM is currently being used in routine exposure monitoring although no studies have been carried out to compare its

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Lin, Chin-Hung, and 林志鴻. "Comparison of sampling effectiveness for different isocyanates sampler." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/26086948931756877186.

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碩士<br>國立陽明大學<br>環境衛生研究所<br>92<br>Abstract This study aimed to analyze sampling efficiencies of isocynates using three different samplers – close-face, 2-piece and 3-piece filter cassettes. Whether sampling conditions affect sampling efficiencies of those three samplers were performed, including flow rate, moisture and sampling time. The 2,4-TDI, 2,6-TDI and HDI were produced by standard gas generator and the filters were coated by 1-(2-pyridyl)piperazine (1,2-PP). Then sampling was performed in painting and grinding district in car repair factories. 2,4-TDI, 2,6-TDI, MDI, HDI and HDI-BT were

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Soriano, Jacopo. "Bayesian Methods for Two-Sample Comparison." Diss., 2015. http://hdl.handle.net/10161/9859.

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<p>Two-sample comparison is a fundamental problem in statistics. Given two samples of data, the interest lies in understanding whether the two samples were generated by the same distribution or not. Traditional two-sample comparison methods are not suitable for modern data where the underlying distributions are multivariate and highly multi-modal, and the differences across the distributions are often locally concentrated. The focus of this thesis is to develop novel statistical methodology for two-sample comparison which is effective in such scenarios. Tools from the nonparametric Bayesian li

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