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 881 for “"reproducibility"”.
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Reproducibility of Retention Indices Examining Column Type
Requests for drug analysis accounted for nearly half of all requests (DNA, toxicology, latent prints, etc.) submitted to forensic laboratories in the United States (Storm et al., 2010). A study by RTI International found that laboratories are only capable of processing about 80% of their controlled …
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Reproducibility crisis in science: causes and possible solutions
… thereby confirming their validity. Additionally, reproducibility serves as a self-correcting tool in science as it weeds out faulty experiments. It is therefore essential that experimental studies be replicated and confirmed. Recently, attempts to reproduce studies in several fields have failed, …
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Systematic replications and statistical reproducibility of educational research
… This thesis addresses the replicability and reproducibility of educational research and proposes tools that could help researchers sift through large amounts of scholarly output. The first paper of this thesis differentiates between the ideas of replicability and reproducibility, and …
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Reproducibility and reliability of chromatin immunoprecipitation in clinical research
<p>Association between histones and DNA is crucial for many cellular functions such as gene transcription and epigenetic silencing. Changes to chromatin structure influence gene expression via histone modifications. Chromatin immunoprecipitation (ChIP) is an experimental technique used to …
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Improving reproducibility and standards in quantitative N-Glycoproteomic data
More than half of all human proteins are glycosylated, making glycosylation one of the most abundant post-translational modifications in proteomics. N-Glycosylation is a prevalent and diverse type of glycosylation with key roles in regulating systems such as protein folding and host-pathogen …
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Generalizability and Reproducibility of Search Engine Online User Studies
… of these studies is the generalizability and reproducibility of the results, especially when the studies involved only a limited number of participants. The interactive IR community, however, does not have a commonly agreed guideline regarding how many participants should recruit. We study …
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Formation, structure, and reproducibility of cerato-ulmin hydrophobin-coated bubbles
The physical characteristics of both the submicron and micron bubble films were investigated. For the submicron bubbles, small-angle x-ray scattering (SAXS) and small-angle neutron scattering (SANS) show the bubbles are cylindrical with a ~70 nm cross-sectional diameter and film thickness of 15 nm, …
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METHODOLOGIES FOR ESTIMATING REPEATABILITY AND REPRODUCIBILITY VARIANCES IN MULTIVARIATE DATABASES
Due to the huge amount of information available from spectra obtained from the analyses of biological samples using spectroscopic analytical techniques such as NMR or MIR/NIR multivariate analysis such as Principal Component Analysis (PCA) are required to understand the influence of major …
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Data preservation and reproducibility at the LHCb experiment at CERN
… first study of data preservation and research reproducibility in data science at the Large Hadron Collider at CERN. In particular, provenance capture of the experimental data and the reproducibility of physics analyses at the LHCb experiment were studied. First, the preservation of the software …
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Renogram Image Characteristics and the Reproducibility of Differential Renal Function Measurement
Aim The reproducibility of differential renal function (DRF) estimates on 99mTc-mercaptoacetyltriglycine (99m Tc-MAG3) is good in the majority of children. There is however a small but important group with poor reproducibility which, if not recognized, could affect clinical decision making. Some …
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Reproducibility and validity of two anaerobic threshold methodologies with overweight women
The twofold purposes of this investigation were: to determine the reliability and validity of two noninvasive methods for determining anaerobic threshold (AT) and; to examine the effect of an aerobic training program on the AT. Twelve sedentary, overweight women participated in an 8 wk walk/jog …
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Capecitabine Induced Hand and Foot Syndrome and the Reproducibility of Friction Skin
<p>In 2008, a 62 year old male was detained by United States Customs and Immigration officials when attempting to enter the United States because his fingerprints were not detectable. It was later reported by his medical doctor in Singapore that the individual suffered from Hand and Foot Syndrome …
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Study of the Reproducibility of Proteomics Methods and Variability of Fruit Fly Proteomes.
… that is largely unexplored is the comparative reproducibility of certain methods such as two-dimensional gel electrophoresis and liquid chromatography/mass spectrometry. In particular, with liquid chromatography/mass spectrometry, it is not known whether variability in peptide quantitation is …
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There and back again? : reproducibility and the hunt for a human compass sense
… Baker's case illustrates the necessity of reproducibility in science and underscores science's messy realities, a point similarly shown by controversial incidences of "pathological science," including Blondlot's discovery of N-rays, Weber's detection of gravitational waves, and Fleischmann …
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Reproducibility and sensitivity of Doppler echocardiographic indices of left ventricular function during exercise
… coefficients were used to determine the reproducibility of the dependent measures between the two tests. The second phase involved the testing of a subset of the original 44 subjects (N=18) under a placebo (control) condition, acute beta-blockade, and oral hyperhydration states. …
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Evaluation of the Repeatability and Reproducibility of Network-Level Pavement Macrotexture Measuring Devices
… this thesis was to assess the repeatability and reproducibility of two high-speed macrotexture measuring systems. The first portion of the study collected macrotexture measurements using the two high-speed systems on the Virginia Smart Road facility and validated the reproducibility of the mean …
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An Automated Syringe Pump System For Improving The Reproducibility of Dynamic Hyperpolarized Mri Phantoms
… AUTOMATED SYRINGE PUMP SYSTEM FOR IMPROVING THE REPRODUCIBILITY OF DYNAMIC HYPERPOLARIZED MRI PHANTOMS</p> <p>Harlee Grace Harrison, B.S.</p> <p>Advisory Professor: James Bankson, Ph.D.</p> <p>Magnetic Resonance Imaging (MRI) is a powerful tool in the diagnosis of cancer due to its ability to …
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First-order statistical speckle models improve robustness and reproducibility of contrast-enhanced ultrasound perfusion estimates
Contrast-enhanced ultrasound (CEUS) permits the quantification and monitoring of adaptive tumor responses in the face of anti-angiogenic treatment, with the goal of informing targeted therapy. However, conventional CEUS image analysis relies on mean signal intensity as an estimate of tracer …
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Statistical process control (SPC) in a high volume machining center : gage repeatability and reproducibility study
… thesis focuses on the gage repeatability and reproducibility study (Gage R&R study) for the implementation of the SPC system. Based on the knowledge about the machining processes and the gages available, we select the proper gages for different dimensions to conduct the Gage R&R study. Gage …
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Effect of anthropometric factors on the reproducibility of Doppler echocardiographic measurements during stationary bicycle exercise in healthy males
… effect of selected anthropometric indices on the reproducibility of continuous wave (CW) Doppler echocardiographic recordings in exercise were studied in 42 healthy males between 18 and 43 years of age. Each subject was measured and rank ordered in reference to four anthropometric Indices: sum of …
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