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 24 for “"Interval data"”.
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A Normal-Mixture Model with Random-Effects for RR-Interval Data
… of random-effects models to longitudinal data, such as heart rate variability (HRV) data, a normal-mixture distribution seems to be more appropriate than the normal distribution assumption. While the random-effects methodology is well developed for several distributions in the exponential …
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A meter interval data analysis of retrocommissioning at the University of Illinois Urbana-Champaign
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Machine learning classifiers for critical cardiac conditions
… and visual analysis of ECG and heart rate (RR interval) data. In this thesis, novel features and machine learning classifiers are developed for automating the detection of Congestive Heart Failure (CHF) and Atrial Fibrillation (AFIB). These classifiers can potentially trigger alarms when …
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Rr Interval Estimation From An Ecg Using A Linear Discrete Kalman Filter
… with Myocardial Infarction (MI). The time interval between each beat is called an RR interval, where the heart rate is given by the reciprocal of the RR interval expressed in beats per minute. For a deeper insight into the dynamics underlying the beat to beat RR variations and for …
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State-space multitaper spectrogram algorithms : theory and applications
… tradeoff inherent in Fourier analysis of finite interval data. I illustrate an application of the algorithm to real-time anesthesia monitoring, which could prevent traumatic cases of intraoperative awareness. I discuss issues including a real-time implementation and modeling the system's noise …
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Developing tailored approaches from multi-arm randomised trials with an application to blood donation
… UK-based blood donation trial called INTERVAL. In INTERVAL, male donors were randomly assigned to 12-week, 10-week, and 8-week inter-donation intervals, and female donors to 16-week, 14-week, and 12-week inter-donation intervals. The outcomes of this trial include the amount of blood …
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Mathematics anxiety and women : cognitive, motoric and physiological dimensions
… of this study was to further explore single case data related to the construct of math anxiety, as it applies to women. A triple mode analysis was used to identify critical variables and to establish patterns of synchrony, desynchrony and partial synchrony. A total of six women participated in two …
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Quantification of regularity in RR-interval time series using approximate entropy, sample entropy, and multi-scale entropy
… ability of these measures to distinguish the RR-interval time series of normal subjects (NSR) from subjects with congestive heart failure (CHF). The study was conducted on the RR-interval data of 44 NSR subjects and 18 CHF subjects. In addition to this, entropy measures of three apparently …
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Effect of Individualized Curricular Accommodations, Incorporating Student Interest and the Impact on the Motivation and Occurrence/ Nonoccurrence of Disruptive Behavior Displayed By Students with Emotional/behavioral Disorders.
… E/BD. Use of an ABAB reversal design, including interval data collection, and the use of a behavior rating scale and a motivation assessment scale were used to establish baseline data and determine effectiveness of the intervention. Results indicate that each student demonstrated a reduction in …
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The disaggregation of whole-house electric load into the major end-uses using a rule-based pattern recognition algorithm
… of the monitored whole-house electric load. The data used to develop the model involves a one-time intrusive monitoring period to collect rapid-sampling interval data of demand for each major appliance load and the whole-house for a period of one week for one dwelling. The data applied to test …
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Framework for addressing drawbacks of central government fiscal transfers in Zambia
… implementation of decentralization in Zambia. Data was obtained through purposive and critical case sampling (using person to person interviews and questionnaire interviews) as well as secondary data through literature reviews and content analysis of local authority project documents. The …
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Framework for addressing drawbacks of central government fiscal transfers in Zambia
… implementation of decentralization in Zambia. Data was obtained through purposive and critical case sampling (using person to person interviews and questionnaire interviews) as well as secondary data through literature reviews and content analysis of local authority project documents. The …
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Electrical Demand Analysis Software Tool Suite and Automatic Report Generation for Energy Audits
… through the use of 15-minute or 30-minute demand data sets, available to industrial and manufacturing clients augmented with Interval Data Recorder (IDR) meters, the Industrial Assessment Center at Texas A&M has developed a suite of electrical analysis tools designed to increase analysis fidelity, …
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The selection of different averaging approaches on whole-body vibration exposure levels of a driver utilising the ISO 2631-1 standard
… in vibration assessment work, namely averaging intervals. To our knowledge, this was the first study investigating the effect of multiple averaging approaches on WBV results. WBV parameters were measured for a driver operating a vehicle on a preselected test route utilising ISO 2631-1:1997. This …
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Interval and fuzzy optimization. Applications to data envelopment analysis
… of efficiency assessment models and tools. Data Envelopment Analysis (DEA) is one of the most important methodologies to measure efficiency assessment through the comparison of a group of DMUs. It permits the use of multiple inputs/outputs without any functional form. It is vastly applied to …
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Does acute hypoxia and high altitude exposure adversely affect cardiovascular performance?
… T (cTnT) quantification. Cardiac inter-beat interval data for HRV analysis was acquired using single lead ECGs and novel finger and patch sensor technologies. Cardiac rhythm was investigated using a novel implantable cardiac monitor. Results: HA exposure was associated with a non-pathological …
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Selected economic behaviors of specified female-heads of households
… status. The sample was obtained from the 1984 data collection of the 1968-1984 Panel Study of Income Dynamics by the Institute of Social Research at The University of Michigan. Those studied were all in households with a female head, children under age 18, no other adults living In the …
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The analysis of primary metered half-hourly electricity and gas consumption in municipal buildings.
… of primary meter half-hourly energy consumption data. The current work offers a novel benchmarking technique that was tested for 6 types of municipal buildings. This approach is different from conventional annual benchmarking mainly because it uses electricity and gas data in half-hourly periods, …
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Graph based management of temporal data
… and sensors that led to high-volume temporal data generation. Temporal modeling and querying of this huge data have been essential for effective querying and retrieval. However, custom temporal models have the problem of generalizability, whereas the extended temporal models require users to …
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The Censored Heterogeneous Negative Binomial Model
… is an issue common to the analysis of survival data. Survival analysis evaluates time to the occurrence of an event for each individual as its outcome measure; those individuals for whom the event does not occur prior to the end of the study are said to have censored event times. Censoring may …
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