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COUPLE PLAY AS A PREDICTOR OF COUPLE BONDING, PHYSICAL HEALTH AND EMOTIONAL HEALTH
Title
COUPLE PLAY AS A PREDICTOR OF COUPLE BONDING, PHYSICAL HEALTH AND EMOTIONAL HEALTH.
Creator
Vanderbleek, Linda, Robinson, Edward, University of Central Florida
Abstract / Description
Traditional couple counseling research focused on why people end relationships, with research only recently addressing what factors contribute to relationship satisfaction and stability. Yet, throughout this research, minimal attention has been paid to the role of play in couple counseling. The research available on play in couple counseling had varied definitions of couple play and was not based on current couple counseling theory. The research and anecdotal data on couple play proposed a...
Show moreTraditional couple counseling research focused on why people end relationships, with research only recently addressing what factors contribute to relationship satisfaction and stability. Yet, throughout this research, minimal attention has been paid to the role of play in couple counseling. The research available on play in couple counseling had varied definitions of couple play and was not based on current couple counseling theory. The research and anecdotal data on couple play proposed a strong relationship between couple play and the factors that predict successful, long-term couple relationships, individual physical health and emotional health. This study applied current couple counseling theory and research to define couple play and the relationship between couple play and couple bonding, physical health and emotional health. The hypotheses of the study were couple play would predict couple bonding; couple play would predict individual physical health; and couple play would predict individual emotional health. The results from a sample of 30 couples demonstrated couple play predicted measures of couple bonding, including relationship satisfaction, communication, conflict resolution, and the couple's view of the relationship. Couple play demonstrated no relationship to individual physical or emotional health. Since couple play was predictive of successful, long-term couple relationship measures, the implications were discussed for using couple play in assessment and intervention in couple counseling and future research.
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Date Issued
2005
Identifier
CFE0000426, ucf:46403
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0000426
CHARACTERIZATION OF DISPERSION AND RESIDUAL STRESS IN NANOPARTICLE REINFORCED HYBRID CARBON FIBER COMPOSITES
Title
CHARACTERIZATION OF DISPERSION AND RESIDUAL STRESS IN NANOPARTICLE REINFORCED HYBRID CARBON FIBER COMPOSITES.
Creator
Selimov, Alex, Raghavan,Seetha, University of Central Florida
Abstract / Description
Hybrid carbon fiber reinforced composites are a new breed of materials that are currently being explored and characterized for next generation aerospace applications. Through the introduction of secondary reinforcements, such as alumina nanoparticles, hybrid properties including improved mechanical properties and stress sensing capabilities can be achieved. In order to maximize these properties, it is necessary to achieve a homogeneous dispersion of particulate filler. Utilizing the...
Show moreHybrid carbon fiber reinforced composites are a new breed of materials that are currently being explored and characterized for next generation aerospace applications. Through the introduction of secondary reinforcements, such as alumina nanoparticles, hybrid properties including improved mechanical properties and stress sensing capabilities can be achieved. In order to maximize these properties, it is necessary to achieve a homogeneous dispersion of particulate filler. Utilizing the photoluminescent properties of alumina, it is possible to compare local levels of particle concentration through emission intensities as a way to determine the effectiveness of the tested manufacturing parameters in increasing material homogeneity. Parameters of these photoluminescence emissions have been established to be stress dependent, which allows for in situ residual stress measurements. It is shown here that the application of silane coupling agents as particle surface treatments improves particle dispersion when compared to untreated samples. Reactive silane coupling agent (RSCA) treatments were found to provide for greater dispersion improvements when compared to non-reactive silane coupling agents (NRSCA). Higher resolution investigations into these samples found that treatment with a reactive coupling agent altered the stress state of particles concentrated around the fiber from a tensile stress state to a compressive stress state. This is proposed to result from bonding of the reactive groups on the coupling agent to the organic groups on the carbon fibers which adjusts the stress state of the particle. Future mechanical tests will verify the effects of the particle surface functionalization treatments on mechanical properties of the composites.
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Date Issued
2016
Identifier
CFH0000233, ucf:44669
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFH0000233
Measuring and Modeling NMR and Emission Spectra to Gain New Insight into Challenging Organic Compounds
Title
Measuring and Modeling NMR and Emission Spectra to Gain New Insight into Challenging Organic Compounds.
Creator
Powell, Jacob, Harper, James, Campiglia, Andres, Beazley, Melanie, Richardson, David, Blair, Richard, University of Central Florida
Abstract / Description
The advancement of theoretical methods in recent years has allowed the calculation of highly accurate spectroscopic parameters. Comparing these values to the corresponding experimental data can allow molecular structures to be elucidated. This dissertation details the use of experimental and theoretical data from nuclear magnetic resonance (NMR) and fluorescence spectroscopy to determine structure. Herein the NMR focus is on measuring (&) modeling chemical shift anisotropy and one-bond carbon...
Show moreThe advancement of theoretical methods in recent years has allowed the calculation of highly accurate spectroscopic parameters. Comparing these values to the corresponding experimental data can allow molecular structures to be elucidated. This dissertation details the use of experimental and theoretical data from nuclear magnetic resonance (NMR) and fluorescence spectroscopy to determine structure. Herein the NMR focus is on measuring (&) modeling chemical shift anisotropy and one-bond carbon-carbon J-coupling constants (1JCC). The fluorescence analysis models vibrationally resolved fluorescence spectra.Chemical shift anisotropy techniques were used to study two conflicting crystal structures of the n-alkyl fatty acid, lauric acid. These two crystal structures differ only in their COOH conformation. Lattice-including density functional theory (DFT) refinements of each crystal structure failed to match experimental data leading to the proposal of a third crystal structure with a hydrogen disordered COOH moiety. This disorder strengthens the hydrogen bond providing a new rationalization to the long observed non-monotonic melting behavior of fatty acids having even and odd numbers of carbons.The INADEQUATE is a NMR experiment that directly establishes the skeleton of organic compounds by measuring the 1JCC throughout a molecule. The low occurrence of 13C-13C pairs (1 in 10,000) and breaks in connectivity due to the presence of heteroatoms causes challenges to INADEQUATE analysis. Here, the insensitivity problem is overcome using analysis software that automatically processes data and identifies signals, even when they are comparable in magnitude to noise. When combined with DFT 1JCC predictions,configuration and confirmations of the natural products 5-methylmellein and hydroheptelidic acid are elucidated.Vibrationally resolved fluorescence spectra of high molecular weight PAHs can be accurately calculated through time-dependent density functional theory (TD-DFT) methods. Here, the theoretical spectral profiles of certain PAHs are shown to match experimental high- resolution fluorescence spectra acquired at cryogenic temperatures. However, in all cases, theoretical spectra were systematically offset from experimental spectra. To decrease these uncertainties spectra were empirically corrected and an automated scheme employed to match theoretical spectra with all possible experimental spectra. In all cases the theoretical spectra were correctly matched to the experimental spectra.
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Date Issued
2017
Identifier
CFE0006953, ucf:51680
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0006953