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A comparative study of the effectiveness of the relaxation response and personalized relaxation tapes in medical technology students

Description: This investigation was a development of a Personalized Relaxation Technique which was used in a comparative study of the effectiveness of this technique with the Relaxation Response, a popular relaxation method. The purpose of the study were (1) to design a Personalized Relaxation Technique and (2) to determine if this Personalized Relaxation Technique is as effective as the Relaxation Response.
Date: December 1984
Creator: Ramsey, Michael Kirby
Partner: UNT Libraries

Heat Capacity Lag of Gaseous Mixtures

Description: Note presenting the measurement of relaxation times for the excitation of molecular vibrations in a number of heavy gases using an acoustic interferometer. All of the gases studied were found to have a single relaxation time, indicating that intermodal coupling in these gases is strong.
Date: March 1956
Creator: Rossing, Thomas D.; Amme, Robert C. & Legvold, Sam
Partner: UNT Libraries Government Documents Department

Effects of Thermal Relaxation and Specific-Heat Changes on Measurements With a Pneumatic-Probe Pyrometer

Description: "Equations are derived which evaluate the effects of thermal vibrational relaxation and specific-heat changes on pneumatic-probe pyrometer measurements in the region 1000 to 3000 degrees K and Mach numbers between 0.3 and 2.0. Examples are given for typical probes in two combustion mixtures" (p. 1).
Date: July 1957
Creator: Kuhns, P. W.
Partner: UNT Libraries Government Documents Department

Influence of Caffeine on EMG, Self-Rating, and Behavioral Observation Indices of Progressive Relaxation Training

Description: This study was designed to investigate the inhibiting effect that caffeine may have in inducing deeper states of relaxation. The degree of relaxation was assessed by physiological measures, self-ratings, and behavioral observations of relaxation behavior.
Date: August 1981
Creator: Floyd, William T.
Partner: UNT Libraries

Two axial-symmetry solutions for incompressible flow through a centrifugal compressor with and without inducer vanes

Description: Report presenting solutions for axially symmetric flow through an impeller with and without inducer vanes, which were obtained by relaxation methods using an analysis in the report. The fluid was considered inviscid and incompressible. Plots of streamlines, lines of constant velocity, and lines of constant tangential blade force are presented and discussed.
Date: September 1951
Creator: Ellis, Gaylord O.; Stanitz, John D. & Sheldrake, Leonard J.
Partner: UNT Libraries Government Documents Department

Design of two-dimensional channels with prescribed velocity distribution along the channel walls 1: relaxation solutions

Description: Report presenting a general method of design is developed for two-dimensional unbranched channels with prescribed velocities as a function of arc length along the channel walls. The method is developed for both incompressible and compressible, irrational, nonviscous flow. Five numerical examples are given including three elbow designs with the same prescribed velocity as a function of arc length along the channel walls but with incompressible, linearized compressible, and compressible flow.
Date: January 1952
Creator: Stanitz, John D.
Partner: UNT Libraries Government Documents Department

A Comparison of the Effects of Deep Muscle Relaxation and the Tranquilizing Agent Chlordiazepoxide on Hospitalized Alcoholics

Description: The purpose of this research study was to compare the treatment effects of relaxation therapy and the tranquilizing agent Chlordiazepoxide (Librium). The subjects were 37 hospitalized alcoholics who had been identified as anxious. Elevations of scales two and seven of the MMPI was used as a criterion of anxiety. Thirteen subjects were given Librium, 12 were given a placebo, 12 were given nine sessions of relaxation therapy. Although the results did not indicate significant differences among the three groups, the relaxation group showed the least amount of anxiety at post-testing. It was concluded that relaxation therapy was equal to drug therapy in effectiveness and thus more desirable due to the lack of undesirable side effects. Suggestions for further research were given.
Date: August 1975
Creator: Miller, Jimmie Wayne
Partner: UNT Libraries

Relaxation Imagery to Facilitate Endogenous Control of Lymphocytic Function in Humans

Description: Whether an individual's state of mind can influence the body's immune system has been studied for several decades. Historical notions of a homeostatic, self-contained, and self-monitored system have been discarded. Studies have explored conditioning effects and cognitive behavioral methods to affect the immune response. This study is based on the assumption that relaxation imagery can be used as an endogenous means to produce specific physiological change in the immune function. Subjects were instructed to make a directional change in the absolute number of peripheral lymphocytes using relaxation imagery.
Date: August 1984
Creator: Myers, Carol Rae
Partner: UNT Libraries

Self-Directed Relaxation as a Treatment for Essential Hypertension

Description: Male (8) and female (22) Essential Hypertensives (130/85 mm Hg or above) were randomized into a nonspecific treatment or an experimental treatment utilizing eight relaxation strategies. Both groups had eight training sessions which consisted of baseline blood pressures (BP), 15 minute relaxation tapes, and post-relaxation BP's. Subjects were instructed to use their tapes three times between sessions. Five BP readings were taken at the one and two month follow-ups. It was hypothesized that the experimentals would have greater within and across session decreases in BP, and that the differences would be maintained during a no treatment follow-up. Eleven experimentals and 8 controls were on medication. Mean medication compliance percentages were 99.9 and 99.6 while mean relaxation compliance percentages were 95.2 and 115.2 for experimentals and controls respectively. Efficacy was checked at each training session on a seven-point scale and group means were 6.5 and 5.4 for experimentals verses controls. Within session decreases in BP were compared with t tests and no significant differences (p < .05) were present for the eight training sessions with systolic (SBP) or diastolic (DBP). Across session changes were compared with ANCOVA and no significant differences (p < .05) were present for the eight training or two follow-up sessions for SBP or DBP. In summary, the experimentals showed within and across session decreases in BP consistent with prior research, but the effect was not significantly better than "sitting quietly". It was concluded that nonspecific treatments must be included in BP research on effectiveness of treatments. A final conclusion was that both groups did show clinically useful decreases in BP which were maintained at follow-up and the effectiveness of noninvasive treatments for Essential Hypertension was demonstrated.
Date: December 1984
Creator: Hafer, Donald G.
Partner: UNT Libraries

Comparison of the Experimental Pressure Distribution on an NACA 0012 Profile at High Speeds With That Calculated by the Relaxation Method

Description: Note presenting pressure-distribution measurements made on a 5-inch-chord NACA 0012 airfoil at zero angle of attack in the Langley rectangular high-speed tunnel, a 4- by 18-inch closed-throat tunnel, and compared with results calculated by Emmons for an equivalent airfoil-channel configuration by using the relaxation method.
Date: August 1950
Creator: Amick, James L.
Partner: UNT Libraries Government Documents Department

Dielectric Relaxation of Aqueous Solutions at Microwave Frequencies for 335 GHz. Using a Loaded Microwave Cavity Operating in the TM010 Mode

Description: The frequency dependence and temperature dependence of the complex dielectric constant of water is of great interest. The temperature dependence of the physical properties of water given in the literature, specific heat, thermal conductivity, electric conductivity, pH, etc. are compared to the a. c. (microwave) and d. c. conductivity of water with a variety of concentration of different substances such as HC1, NaCl, HaS04, etc. When each of these properties is plotted versus inverse absolute temperature, it can be seen that each sample shows "transition temperatures". In this work, Slater's perturbation equations for a resonant microwave cavity were used to analyze the experimental results for the microwave data.
Date: August 1994
Creator: Wang, Henry F. S. (Henry Fu-Sen)
Partner: UNT Libraries

A Comparison of Imagery Relaxation and an Educational Treatment Modality for Dysmenorrhea

Description: This study is a comparison of four treatments involving education and imagery relaxation for the amelioration of dysmenorrhea. Treatment was presented to 76 subjects by videotape during a one-hour session. A six month follow-up was performed using one of the original instruments, the Symptom Severity Scale (Cox & Meyer, 1978) and a questionnaire designed for the study. Analysis of the test instruments indicated a significant treatment effect for the educational group. The second most effective treatment was a combined treatment utilizing imagery relaxation and education, although this group did not produce significant results. The no-treatment control group was more effective in diminishing symptoms than the fourth group, imagery relaxation alone. The lack of effectiveness of the imagery relaxation treatment was hypothesized to be due to lack of reinforcement of the technique. The educational treatment modality offered the individual an opportunity to learn about many different etiological facets of dysmenorrhea, including biological, learning, and cognitive factors. The presentation also introduced the individual to several different treatment modalities in order to provide an armamentarium of effective methods for diminishing or eliminating dysmenorrhea. These results suggest that there is a need for education about dysmenorrhea before menarche, in order to prepare, prevent, treat, and cope with this syndrome.
Date: August 1986
Creator: Skewis, Sally Sweitzer
Partner: UNT Libraries

Cue-controlled relaxation using covertly versus overtly produced cues under stress and no-stress conditions

Description: The present study directly contrasted the efficacy of biofeedback-assisted cue-controlled relaxation, biofeedback-assisted metronome -conditioned relaxation, and both procedures combined via one physiological and one subjective measure of relaxation under no-stress and stress conditions.
Date: December 1979
Creator: Dial, Miles H.
Partner: UNT Libraries

Cue-Controlled Relaxation: Saving Time Versus Efficacy

Description: Cue-controlled relaxation is looked at to determine whether a component is efficacious as the entire procedure. Subjects were 40 male and 40 female undergraduates. Subjects were randomly assigned to one of four conditions: cue-controlled relaxation, progressive muscle relaxation, breathing exercises with a paired. cue word, on a presentation of the cue word without being paired. It was hypothesized that cue-controlled relaxation would be superior to a component of cue-controlled relaxation. It was determined that cue-controlled relaxation is not more efficacious than a particular component. Data suggests the majority of anxiety reduction takes place when the treatment focuses on the same modality from which the subject receives the most information about their anxiety. Implications and suggestions for further research are presented.
Date: August 1983
Creator: Todd, John Bruce
Partner: UNT Libraries

Control of Heart Rate by Progressive Relaxation Techniques and Cerebral Electrotherapy

Description: This study presents the findings of an investigation of the effects of two different treatments, progressive relaxation and cerebral electrotherapy, on heart rate. With progressive relaxation, the subject relaxes by following instructions. With cerebral electrotherapy, relaxation is due to an external source of stimulation. Decreases in heart rate for subjects receiving progressive relaxation were compared with decreases for subjects receiving cerebral electrotherapy. A placebo group was used to evaluate the effects of both treatments independently. While decreases in heart rate were observed for both treatments, only progressive relaxation produced decreases significantly greater than those of the placebo group. However, decreases in heart rate produced by progressive relaxation were not significantly greater than decreases produced by cerebral electrotherapy.
Date: December 1974
Creator: Chambers, Jim A.
Partner: UNT Libraries

Femtosecond chirp-free studies of energy relaxation in semiconductor quantum dots: Search for a phonon bottleneck

Description: Contrary to the predictions of phonon bottleneck theories, we observe very fast subpicosecond energy relaxation in strongly confined semiconductor nanocrystals with electron level spacing as large as 20 LO phonon energies.
Date: August 1, 1997
Creator: Klimov, V. & McBranch, D.
Partner: UNT Libraries Government Documents Department

Deep Muscle Relaxation Obtained with Analog Electromyographic Information Feedback

Description: The purpose of the research study was to provide improved relaxation training with the use of an electromyography feedback device based on the design of Green et al. (1969). It was intended that this instrument would allow the training of deep muscle relaxation to the point of neuro-muscular silence, while remaining inexpensive enough to be applied in the clinical setting.
Date: May 1973
Creator: Bates, Charles Edward
Partner: UNT Libraries

A Linear Tetranuclear Dysprosium(III) Compound Showing Single-Molecule Magnet Behavior

Description: Although magnetic measurements reveal a single-relaxation time for a linear tetranuclear Dy(III) compound, the wide distribution of the relaxation time observed clearly suggests the presence of two slightly different anisotropic centres, therefore opening new avenues for investigating the relaxation dynamics of lanthanide aggregates.
Date: April 20, 2010
Creator: Ke, Hongshan; Xu, Gong Feng; Guo, Yun-Nan; Gamez, Patrick; Beavers, Christine M; Teat, Simon J et al.
Partner: UNT Libraries Government Documents Department

Blood pressure biofeedback and relaxation training: the effects of home practice on reduction of blood pressure in persons with essential hypertension

Description: Blood pressure biofeedback at home was compared with relaxation training and a combination of the two procedures for the treatment of essential hypertension, Ten subjects were taught to monitor blood pressure (BP) at home with electronic sphygmomanometers designed for self-use.
Date: August 1980
Creator: Bradley, Robert W. (Robert Wayne)
Partner: UNT Libraries

Quantum Operation Time Reversal

Description: The dynamics of an open quantum system can be described by a quantum operation: A linear, complete positive map of operators. Here, I exhibit a compact expression for the time reversal of a quantum operation, which is closely analogous to the time reversal of a classical Markov transition matrix. Since open quantum dynamics are stochastic, and not, in general, deterministic, the time reversal is not, in general, an inversion of the dynamics. Rather, the system relaxes toward equilibrium in both the forward and reverse time directions. The probability of a quantum trajectory and the conjugate, time reversed trajectory are related by the heat exchanged with the environment.
Date: March 25, 2008
Creator: Crooks, Gavin E.
Partner: UNT Libraries Government Documents Department

Attainment of Low Levels of Muscle Tension: Biofeedback-Assisted/Cue-Controlled Relaxation and Biofeedback Training Compared

Description: Cue-controlled relaxation appeas to have several advantages over prominent anxiety-reduction treatments. It does not require the formulation of conditioned stimulus hierarchies nor the use of mental imagery as does systematic desensitization nor the application of noxious stimularion (farradic shock) utilized in anxiety relief. However, its efficacy, in quantitative terms, has not been determined. The present study compared the effectiveness in attainment of relaxation of instructional set, biofeedback training, and biofeedback-assisted/cue-controlled relaxation training procedures. Results indicate that cue-controlled relaxation training was more effective in terms of mean level of frontal is EMG and degree of maintenance of low EMG levels than either biofeedback training or instructions.
Date: August 1978
Creator: Ewing, Jack Winston
Partner: UNT Libraries

EMG Biofeedback Training: Effect on Behavior of Children with Activity-Level Problems

Description: The relationships between muscle-tension level, motoric-activity level, and academic performance in the laboratory setting are investigated. Three participants were reinforced for reducing and increasing their tension levels, alternately, while engaged in a simulated academic task, and the effects of each on the rate of activity and academic performance were measured. Measures were also obtained on the rate of activity and occurrence of problem behavior in the subject's homes. Significant treatment differences were found which support a direct relationship between tension and activity level so that a decrease in EMG level was associated with a decrease in motoric activity, and an increase in EMG level was associated with an increase in motoric activity. The efficacy of using EMG biofeedback to train relaxation in children with activity-level problems to control their symptoms is supported, especially where such a technique can be used in a specific task-oriented situation.
Date: May 1977
Creator: Henry, David L.
Partner: UNT Libraries