Digitized Theses and Dissertations (1940 - 2009)

Permanent URI for this community

https://hdl.handle.net/10657/3932

About UH Libraries' Digitized Theses and Dissertations Project

University of Houston (UH) Libraries is engaged in a multi-year project to digitize and deliver online its collection of print theses and dissertations dating back to 1940, making the full breadth of scholarship produced by UH students more readily accessible around the world. There is no cost to the author for this service.

Alumni and other readers will be able to view these works as they are processed and made available through UH's open access repository. Works that are presumed to be under copyright will be restricted only to users who have an active CougarNet ID.

Please note, text may be faint or difficult to read, and pages may be missing or misnumbered in the print copies of theses or dissertations. UH Libraries staff have made every effort to provide the highest possible quality representation of the original works. To protect privacy and other rights, some personally identifiable information and/or copyrighted material is redacted from the works in this collection.

Theses and dissertations will continue to be made available through interlibrary loan (ILL) to other libraries, as when they were only available in print.

Requests for withdrawing works (except electronic theses and dissertations) must be directed to the online Takedown Request Form. Any other questions about this project may be directed to cougarroar@uh.edu.

Browse

Now showing 1 - 20 of 4735

20 and 40 c/sec power functions in the visual, motor, and auditory cortices of the cat during three levels of performance in a successive visual discrimination task
(1969) Hix, Lyllian Blaine
The electrical activity in 5 frequency bands in the arousal spectrum was studied in the primary visual cortex, motor cortex, and primary auditory cortex of one cat during prestimulus (PS) and stimulus periods at 3 levels of performance in a successive visual discrimination task. The task involved pressing a bar to obtain milk only in the presence of a 10 c/sec flashing light as the SD and inhibiting during an S-delta period of a 3 c/sec light. EEG records representing the poorest, an intermediate, and the best behavioral performance, based on SD/S-delta ratios, in the visual discrimination task were computer analyzed to give average continuous power functions at 1/3 octave frequency bands with center frequencies of 20, 25, 31.5, 40, and 50 c/sec. The trials in the task on each tape were divided into as many as six behavioral categories, depending on the availability of trials within each category, as follows: PS, SD, and S-delta concomitant with a response (PSR, SDR, S-delta R, respectively) and PS, SD, and S-delta in which no response occurred (PSNR, SDNR, respectively). Initiation of computation was contingent upon a response, either behavioral or artificial and either with or without a delay, so that the averaged band powers in a period of time prior and subsequent to the response could be accurately ascertained. The analysis epoch was divided into two periods of time, one in which the electrical activity was assumed to be response related, the other assumed to be sufficiently removed in time from the response that the electrical activity was little affected by the response. The results were: 1. At all three levels of performance the 40 c/sec activity in visual I and motor cortex, but not in auditory I, was consistently higher during SDR than during the other behavioral conditions studied. 2. The 40 c/sec electrical activity in visual I coincident with a reinforced response increased as performance improved, although the 40 c/sec activity with intermediate performance appeared to be more similar to that occurring with superior performance than to that concomitant with poor performance. The 40 c/sec electrical activity in the motor cortex with a reinforced response varied little with performance level. 3. A marked peaking of the 40 c/sec activity and a marked decrease in 20 c/sec activity occurred coincident with a reinforced response in both visual I and motor cortex, but not in auditory I. These phenomena were particularly evident with intermediate and superior performance in visual I, 4. Graphic data indicated an inverse relationship between the 20 c/sec and 40 c/sec activity in the visual and motor cortices during SDR and S-deltaNR. The 20 c/sec activity was higher during S-deltaNR than during SDR and the 40 c/sec was higher during SDR than during S-deltaNR. Statistical analysis was not possible because of the small N (N=3). 5. A marked peaking of the 20 c/sec activity in auditory I occurred approximately 2 to 2 1/2 sec following a reinforced response during "lapping" behavior. At the same time, significant but very small decreases in the 40 and 50 c/sec bands occurred. The 20 c/sec activity was consistently higher during lapping than it was following a response that was not reinforced or during a prestimulus period. 6. Since 40 c/sec activity was observed in association with facllitatory or arousal behavior and the 20 c/sec with behavioral inhibition, a tentative hypothesis was advanced that the 40 c/sec activity is an electrical correlate of the orienting response and that the 20 c/sec activity is an electrical correlate of the inhibition of the orienting response.
3-amino-1-phenoxybutan-2-ols and 1-amino-3-phenoxybutan-2-ols as potentially active beta-adrenergic antagonists
(1974) Capiton, George Adolphe; Boblitt, Robert L.; Lemke, T. L.; Euler, Kenneth L.; Willcott, Mark Robert
To study the relationship between side-chain methylation and selective beta-receptor antagonism, eight aminophenoxybutanols were prepared, comprised of two series containing four compounds each: (A) 3-amino-1-phenoxybutan-2-ols(I), and (B) l-amino-3-phenoxybutan-2-ols(II). Synthesis was achieved by treating two isomeric phenols (4,4-dimethylphenol or 4-ethylphenol) with 3-bromo-1,2-epoxybutane, catalyzed with BF[subscript 3]-etherate, which resulted in a mixture of 3-bromo-1-phenoxy- and 1-bromo-3-phenoxybutan-2-ols. Subsequent refluxing with i-propyl- or t-butylamine afforded I and II. The mixture thus formed was separated by column chromatography and found to consist of approximately 30% I and 70% II. The structure of II was unexpected; it was assumed that a 3-amino-2-phenoxybutan-l-ol (the "abnormal" product) would prevail. PMR, CMR and mass spectral data were employed for structure elucidation.
40 HZ EEG and focused arousal behavior in the cat
(1985) Kaufmann, Paul M.; Sheer, Daniel. E.; Breitmeyer, Bruno G.; Ktonas, Preiklis Y.
The relationship between 40 HZ EEG and focused arousal behavior has been investigated in 6 cats. Indwelling chronic electrodes were implanted in the nucleus parabrachialis (PB) of the rostral pons, lateral geniculate nucleus (LGN) of the thalamus, and visual cortex (VC). After recovery, EEG and behavior were recorded across the following experimental phases: 1) baseline, 2) presentation of a novel 7 cps visual stimulus and habituation to this stimulus, and 3) UCS - CS pairing of this visual stimulus with a mildly aversive event and adaptation to the pairing. An increase in the frequency of 40 HZ peaks was observed in the initial stages of phase 2 and phase 3 in comparison to phase 1. 40 HZ activity in the LGN and VC was strongly correlated with 40 HZ activity in PB. These results replicate previous findings that a high frequency low amplitude EEG signal is highly correlated with focused arousal, attention, and the acquisition phase of learning. Furthermore, results suggest that PB functions, through excitatory post synaptic potential (EPSP) biasing, to increase the probability of firing of fast frequency EEG between the LGN and VC during UCS-CS pairing of a visual stimulus. Ascending cholinergic input from PB is a critical neural substrate for focused arousal. Applications to learning and cognitive dysfunction are discussed.
40 HZ. power functions in MBI and normal children during performance of behavioral tasks
(1971) Hix, Lyllian B.; Sheer, Daniel E.; Johnson, Dale L.; Myers, Stanley N.; Rice, James A.; Wieland, Betty A.
The electrical activity in 3 frequency bands in the 'arousal spectrum' was studied in the right parietal-occipital area of 10 male learning disordered (MBI) children (age, M=10.26, SD=1.31; IQ, M=98.00, SD=7.51) and 10 normal grade level (NGL) children (age, M=10.19, SD=0.74; IQ, M=98.40, SD=6.05) during three behavioral tasks. Visual (V), Verbal-Visual (VV), and Verbal-Auditory (VA), and a Rest Control. Continuous (moving-window) power spectral functions were computed with an analog computer for 31.5, 40, and 50 Hz. bands and for a 70 Hz. band which was used as an indicator of the degree to which muscle potentials were contributing to the power functions. After discarding data believed to be affected by muscle potentials on the basis of a criterion value from the 70 Hz. power function, the 'area under the curve' of the power spectral functions was measured with a planimeter during each stimulus to response interval of the test situation and during consecutive 10-sec. intervals in Rest Control. Power/sec was then calculated. These measures were subjected to digital analysis in which a statistical control was applied to remove power from each function to the extent of the correlation of each power function with the 70 Hz. 'muscle indicator' function. The results were: 1. The MBI group made significantly more errors than the NGL group on VV and VA tasks, while there was no significant difference in performance of the two groups on V tasks. 2. Mean power/sec in the 40 Hz. band was higher during VV tasks compared to VA tasks and Rest Control in the NGL group, but not in the MBI group. Mean power/sec in the 31.5 and 50 Hz. bands did not differ significantly between VV, VA, and Rest Control for either the NGL or the MBI group. 3. Mean power/sec was higher in the NGL group than in the MBI group in the 40 Hz. band during VV tasks. No such difference in absolute power values between the two groups was observed either in the 31.5 and 50 Hz. bands or during VA and Rest Control. 4. Power/sec was higher during VV tasks than during Rest Control in more trials in the 40 Hz. band than in 31.5 and 50 Hz. bands in the NGL group, but not in the MBI group. There was no significant difference between frequencies in number of trials showing greater power during VA tasks than during Rest Control for either the NGL or MBI group. These results were interpreted within the framework of the hypothesis of the 40 Hz. rhythm as a 'consolidation rhythm' with the learning disability child's problem conceptualized as a possible failure in the generation of the 'consolidation rhythm.' Implications of these results for the diagnosis and treatment of learning disability children were discussed. It was suggested that researchers might try to facilitate the generation of the 40 Hz. rhythm in the brain either by chemotherapy or by operant conditioning of this rhythm, as in recent alpha conditioning studies. The problem of muscle potentials in the study of brain potentials at frequencies 30 Hz. and above was discussed and practical solutions to the problem were offered.
40Hz activity in MBI, LLD and normal children: a comparative EEG study
(1976) Laxton, Georgia A.; Sheer, Daniel E.; Johnson, Dale L.; Rice, James A.; Harwerth, Ron S.
EEGs were recorded on three groups of children classified as Normals (N=22, mean age=10.08, mean IQ=102.32), Language-Learning Disability (LLD, N=29, mean age=9.91, mean IQ=99.36) and Minimal Brain Injured (MBI, N=25, mean age=10.63, mean IQ=90.56) by the Aldine School District during resting and performance of verbal and nonverbal tasks. Mean errors for the Verbal-Visual (VV) task were 2.41 for Normals, 4.62 for LLDs and 6.12 for MBIs. Mean errors for the Verbal-Auditory (VA) task were 1.91 for Normals, 5.34 for LLDs, and 6.94 for MBIs. Mean errors for the Tactile-Kinesthetic (TK) task were 3.86 for Normals, 5.38 for LLDs, and 5.12 for MBIs. Normals performed better than both learning disability groups on all tasks but no differences were found between the LLDs and MBIs. Computer analysis of the P[lowered 3]-C[lowered z] and P[lowered 4]-C[lowered z] leads divided the EEG into four 23% 1/3 octave bands centered at 30, 40, 50, and 70Hz. Activity of interest was 40Hz. with 30 and 50Hz. serving as control frequencies and 70Hz. used as a muscle detector. Normals had increases during the VV task in both leads in 40 and 50Hz. activity, during the VA task in both leads in 40Hz. activity, and during the TK task in the P[lowered 4]-C[lowered z] lead in 40Hz. activity. MBIs had increases during the TK task in the P[lowered 3]-C[lowered z]. lead in 40 and 50Hz. activity. LLDs had increases during the W task in P[lowered 4]-C[lowered z] in 50Hz. activity and decreases in 30Hz. activity in both leads during the VV task and in P[lowered 3]-C[lowered z], during the VA and TK tasks. Subgroups were formed using psychoeducational test data from school records and behavioral and EEG comparisons were made between the subgroups and between the subgroups and Normals. Hyperactivity, WRAT (Reading, Mathematics, and Spelling), and WISC Performance variables were not as effective as WRAT Reading subtest, WISC Verbal and the Bender-Gestalt test in predicting the degree of 40Hz. deficit as measured by the number of subjects showing 40Hz. increases within a subgroup compared to Nonaals. Findings were discussed in terms of "focused arousal," right-left hemisphere processing differences, the delayed maturation hypothesis, and prognosis for improvement resulting from 40Hz. conditioning as a treatment for learning disabilities. LLDs were selected as the group most likely to benefit from 40Hz. conditioning.
6-methylthioinosine-3', 5'-cyclic monophosphate: synthesis, feedback inhibition and interaction with cyclic phosphodiesterases from Ehrlich ascites tumor cells
(1975) Epps, Dennis Earl; Kimball, A. P.; Spring, Thomas G.; Sherwood, Edith; Bear, John L.
A and B therapists in a therapeutic interview: A study of behavioral and attitudinal distinctions
(1968) Scott, Robert W.; Kemp, David E.
The experiment investigated the relationship between psychotherapist's personal characteristics and the psychotherapeutic relationship. More specifically, the relationship between the AB dimension and some of the presumed correlates of therapy outcome were explored. The AB Scale consists of twenty-three items from the Strong Vocational Interest Blank (SVIB). The Scale differentiates those therapists who are more effective with schizophrenic patients (A therapists) and therapists who are more successful with neurotic patients (B therapists). It is the only instrument which predicts therapists' success. Based on prior research with the AB Scale and its' relationship to psychotherapy, three hypotheses were investigated. It is predicted with neurotic patients: (1) B therapists will be significantly more empathic, warm, and genuine than A therapists. (2) B therapists will be significantly more uncomfortable with their patients. (3) B therapists will have significantly more negative attitudes toward their patients than will A therapists. The Ss in this study were twenty-five fourth-year medical students who were undertaking their assigned fifteen-week rotation in the outpatient Psychiatry Department. They had all undergone the same amount of training in psychotherapy and they were assumed to be homogeneous in terms of psychotherapeutic experience. The therapists were classified as A and B on the basis of their responses to the AB Scale. Twenty-five out-patients who were classified as neurotics, were randomly assigned to these therapists. The initial interview was tape recorded. Immediately after the interview the therapist filled out the Patient Evaluation Questionnaire. This questionnaire contained three subtopics. (1) The therapists clinical assessment of the patient. (2) His personal judgment of the patient. (3) The therapist's reactions during the interview. Random segments of the recordings of the interviews were given to raters who rated each therapist on the degree of the therapeutic conditions: empathy, warmth and genuineness. The results of the study indicated that the AB Scale is not related either to the therapeutic conditions or to therapists' attitude or personal reactions during the interview. Consequently, all three of the hypotheses failed to receive confirmation. The results also indicated that conditions of greater empathy, warmth, and genuineness were related to positive attitudes by therapists toward their patients. It was concluded that the differential success of A and B therapists cannot be accounted for by differences between the two groups in their degree of empathy, warmth, and genuineness with neurotic patients. The question remains open as to whether A and B therapists are differentially empathic, warm, and genuine with schizophrenic patients. It was also concluded that while the AB dimension and empathy, warmth, and genuineness are related to success in psychotherapy these two are not related to each other. A logical explanation for this discrepancy is that the two sets of variables are independent sources of variance in therapeutic outcome. The finding of no relationships between therapists' attitudes in the AB Scale is not consistent with findings of previous studies. It was suggested that the differences in findings of the present study and previous ones may have their basis in methodological variations. In short, it was speculated that as one more closely approximates the therapeutic situation, AB differences in attitudinal reactions become more attenuated. These results, therefore, call the findings of prior studies into question. The finding that higher therapeutic conditions were related to positive attitudes by therapists empirically confirms for the first time the emphasis of other theories that a positive evaluation of a patient will be associated with positive intervention. Follow-up research would logically involve: (1) a replication of the present study with a group of schizophrenic patients included; and (2) the investigation of other therapy-relevant behavior by A and B therapists which may be related to their differential success with schizophrenic and neurotic patients.
A baccalaureate degree program in nursing at San Francisco State College
(1955) Pederson, Evelyn May, 1909; Cochran, J. Chester; Bottrell, Harold R.; Donner, Arvin N.; Kerbow, Alva Lee; Stovall, Franklin L.; Beaty, Harper F.
This report is a presentation and interpretation of a baccalaureate degree program in nursing designed specifically for San Francisco State College, It was developed on the basis of regulations of the California Administrative Code and the requirements of San Francisco State College. The program is intended to develop competent, adaptable nurses, who are well-adjusted as persons and as citizens. It is limited to the education of people for general nursing under supervision. Emphasis has been placed on developing nurses to nurse people rather than diseases. The program has been planned to be within the range of possibilities for the average college student. It is comparable with degree requirements for other disciplines at the college. People of both sexes, and of all social and ethnic groups are eligible for admission. The program should appeal to a wide variety of people under different circumstances, and should place collegiate nursing education within the reach of a larger number of qualified people than the usual nursing program. Certain aspects of the program may have an appeal to prospective students. Students have time to participate at will in all curricular activities. Students may attend on a part-time or full-time basis, because the classwork and laboratory experience of each course are parallel and completely contained within the semester. If students attend on a full- time basis, the program may be completed within four school years, which is the equivalent of the time required to earn a diploma in a hospital program. [...]
A basic driven microprocessor based experimentation system
(1978) Kong, Tai Loy; Tavora, Carlos J.; Linton, Thomas D.; Huang, J. C.
This thesis describes a set of programs designed to extend the capability of the BASIC language to allow periodic acquisition of signals and control of devices. These programs allow a system user to define sets of inputs and sets of outputs from a group of signal lines. Output data are converted into the data formats of external devices and input data are converted into a data format compatible with programs written in BASIC. The extensions to BASIC described in this thesis provide a casual programmer with the means to perform data acquisition and control with minimum knowledge of system software. An application of the software described in this thesis to a system that will test student's proficiency in the use of laboratory equipment is presented and evaluated.
A basic operating system for TI-960A minicomputer
(1977) Shang, Hen Kuo; Huang, J.
Presented in this thesis is an operating system that is designed for teaching minicouputer operating system fundamentals. With a minimum investment in a miniconputer, software support is needed to provide aids for student training in the development of programs. This TTYOS operating system is developed to meet that need. The computer used is a Texas Instruments Model 960A processor with 8K memory, two cassette tape drives, an interval timer, and a teletype. Major functions included in this operating system are input/output supervision, interrupt handling, program debugging, operator communication, storage assignment, and other utility services. A programmer User's Manual and a Source Listing of this operating system are included.
A batch operating system for a Microdata 1600/30 : intercommunication between processes
(1975) Konrat, Jean-Luc
Part of the implementation of a general purpose batch Operating System for a MICRODATA 1600/30 is presented in this thesis. This Operating System, with a resident of 4K bytes only, works in a minimum configuration of 16K bytes. It may be used both in a batch configuration, with a spooling system, and in stand-alone configuration. In this thesis, the system is described in terms of its decomposition into processes ; a general scheme for intercommunication between processes is presented, and the control language is viewed as a tool for the description of the processes in the system. The memory constraints are solved by a succession of overlays, and the linkage to the context of a user program is danonstrated. The description of the rest of the system may be found in the thesis of Xavier Mangin [June, 1975]. Both theses are needed to get a full understanding of the Operating System.
A Bayesian analysis of employment interviewers' errors in processing positive and negative information
(1977) Bigby, David G.; Osburn, Hobart G.; Blakeney, Roger N.; MacNaughton, John F.
It is a pervasive finding in the interviewing literature that unfavorable information has more influence upon interviewer's judgements than favorable information. Hollmann (1971) has proposed that interviewers process unfavorable information accurately while processing favorable information in an underweighted fashion. Due to several methodological shortcomings in Hollmann's design, a reinvestigation of his hypothesis was conducted using a Bayesian information processing paradigm. Possible interviewer information processing errors may be conceived as errors of misperception or misaggregation in the Bayesian framework. The error of misperception involves a misvaluing of the information value of an information item by the interviewer. An error of misaggregation involves inaccuracy in combining items of information. Hollmanns' hypothesis is a differential misaggregation hypothesis. The present study investigated the differential misaggrogation hypothesis in a student sample and a professional interviewer sample. Subjects revised probability of success estimates for hypothetical job applicants based upon items of favorable and unfavorable information. Probability revisions were compared to those dictated by the normative model and the relative accuracy of aggregation for favorable and unfavorable items of information was determined. In both subject groups, favorable and unfavorable infojmation was processed conservatively. In the student group, where differential aggregation accuracy occured it was in the opposite direction from that proposed by Hollmann, Favorable information was aggregated more accurately than unfavorable, There was no differential accuracy effect in the professional sample. It was argued that effects found in the student group could be attributed to a general student leniency effect and that an explanation of the dynamics of the negativity bias probably lies in a misperception hypothesis.
A behavioral description of family interactions in the home and the clinic : Inter and intra setting analysis
(1973) Dysart, Robert R.; Martin, Sander; Brandt, Larry J.; McGaughran, Laurence S.; Rozelle, Richard M.; McKee, Gordon W.
Thirty average families were observed for three evenings as they ate dinner in their own homes. They were also observed eating dinner for an additional session in a structured setting in the clinic. The family behaviors were recorded using a modified form of the Patterson coding system (Patterson, Ray, Shaw, &. Cobb, 1969). In each case a four- to six-year-old child was designated as the target and all his behaviors were coded, as well as the behaviors of all those who interacted with him. The mean coding times for the clinic and the three home visits were not significantly different. It was found that a majority of the verbal behaviors that take place at the dinner table for a four- to six-year-old are between himself and his parents. The target children's behaviors were divided into deviant and non-deviant categories. The total number of target deviant behaviors for this sample of families was very low, averaging less than two per cent of the behaviors per visit. The low rate of deviant responses by the targets resulted in a correspondingly low rate of response to the deviant behaviors by family members. When fathers and mothers did consequate deviant behaviors, they did it more often positively than negatively. All family members responded to deviant behaviors more frequently with a neutral response than with positive and negative responses combined. In other words, parents more often made no response to deviant behaviors . Mothers and fathers responded to non-deviant target behaviors at a rate of about one response per minute. Siblings responded at about one-third the parental rate. Very few non-deviant target behaviors were responded to negatively by any family members. In analyzing the verbal behaviors of the family memoers, it was found that the targets verbal behaviors were most like the clinic on the first home visit and then became less like the clinic on each succeeding visit. The fathers presented the most consistent picture, with their verbal behaviors for all three home visits correlating at the .31 level with their clinic behaviors. Mothers did not show this consistency, with only their second home visit correlating significantly with their clinic behaviors. Siblings' home and clinic verbal behaviors did not correlate for any setting. The analysis of family responses to deviant and non-deviant target behaviors again showed fathers' behaviors in the three home visits correlating to a significant degree with the clinic visit when analyzing positive responses to non-deviant target behaviors. Mothers' responses to non-deviant target behaviors in the clinic correlated with only one home visit. Siblings showed no correlations between home visits and the clinic. In the area of negative responses to non-deviant target behaviors, none of the family memoers manifested home and clinic behaviors which were significantly correlated. Fathers' and siblings' neutral responses to non-deviant target behavior in the clinic correlated with the first day at home only. A check of continuity of the three home visits with the Kendall Coefficient of Concordance W indicated that fathers', mother', and siblings' positive and neutral responses to non-deviant behaviors were associated in the three home settings. It appears that in this sample, only the fathers displayed a reliable degree of consistency from clinic to home settings, and only when consequating non- deviant target behaviors in a positive way. There was no basis for predicting how family members would respond to deviant target behaviors. An analysis of variance was made to determine if mothers and fathers were consequating non-deviant target behaviors differently. There were no differences between mothers' and fathers' neutral consequation of non-deviant target behaviors, but there was a significant difference across settings, which would indicate that there is a significant difference in the ways the targets' parents are neutrally consequating non-deviant behavior.
A blood pump for closed-chest left ventricular bypass
(1969) Bruner, James Dennis; Dalton, Charles; Geddes, Leslie A.; White, Ardis H.; Flumerfelt, Raymond W.
In the quest for more effective and less traumatic methods of treating heart failure the Baylor University College of Medicine, Department of Physiology, has developed a new method of left ventricular assistance. The method does not require thoracotomy and provides assistance to the failing myocardium. Inherent in this method, however, are some rather severe limitations on the pump and pumping system used in implementing the assist. Most notable among these is a long, small diameter tube (catheter) which is placed in the failing ventricle via a carotid artery in the neck. The catheter is used to withdraw blood from the ventricle for later infusion into the arterial tree. The dimensions of the catheter produce a significant pressure drop which is seen as a vacuum at the pump inlet. This vacuum, with normal pumps, decreases flow rates, increases hemolysis rates and results in other undesirable features of pump performance.
A boundary method for calculating the growth of an instability in a system of two fluids
(1967) Nasir, Nadim Eissa; Allred, J. C.; Collins, R. E.; Goodman, Clark; Statfield, J.
A boundary method is presented to solve numerically the problem of gravitational instability for large perturbations in a system of two visco-elastic materials. It is assumed that the inertial terms in the Navier-Stokes[raised 1] equations could be neglected because of the large viscosities. The resulting linear equations were solved by finite sine and cosine transforms. The infinite series solutions were truncated, an initial interface was assumed, the constants of integrations were found from the boundary conditions, and, hence, the velocity fields were determined. The interface was then advanced to a new position. Thus, the new shape of the interface was traced for any time. When the initial perturbation was small the results were nearly those obtainable by the linear theory. Numerical results are presented for large and small perturbations. The method seems to offer a new tool for attacking a certain class of moving-boundary problems.
A brief history of the saxophone and a guide to study materials
(1968) West, Donald Edward; Miller, Samuel D.; Hirsh, Albert; Lerner, Jeffrey C.
Although the saxophone has been in existence for one hundredtwenty-six years, the instrument's history is brief in comparison to that of other wind instruments. In chapter one, the history of the instrument is traced from its invention in 1842 by Adolph Sax and its introduction to America in the 1880's, to its development into its present form. Chapter two has a dual purpose: first, to serve as a guide to some of the materials available for the technical study of the saxophone; secondly, to make students of all ages aware of the vast body of fine literature available for the instrument.
A brief history of the trumpet and an annotated bibliography of studies for the trumpet
(1968) Muckelroy, Roby Kenneth; Schoettle, Elmer
The writer has formulated a manual of material useful to the teacher and student of the trumpet. In the first chapter, the development of the modern-day trumpet has been traced from ancient times to the present. The second chapter consists of an annotated bibliography containing materials that may be used effectively in a five-year course of study of the trumpet at the college level. This five-year study should expose the student to material which, with proper guidance from the teacher and proper drill by the student, will prepare the student, technically, as a competent performer in the field of legitimate orchestral, opera, and band performance.
A cardiovascular control system simulation for exericse
(1972) Croston, Ronald Coville; Kay, Franklin J.; Rummel, John A.; Eichberger, Le Roy C.
A mathematical model and digital computer simulation of the human cardiovascular system and its controls are developed to simulate transient responses to bicycle ergometer exercise. The purpose of the model is to provide a method to analyze cardiovascular control hypotheses which cannot be easily tested in an animal or human. Complex cardiovascular control hypotheses are derived for the control of heart period, peripheral flow resistances, venous tone, and other controlled variables. Control models are based on the use of proportional neurogenic controllers and linearized system elements where possible. Metabolic control models are also derived using simple mathematical models of oxygen uptake, oxygen deficit, and accumulating metabolites to indicate the transient metabolic state and simulate other chemical factors. Equations describing pulsatile blood flows, pressures, and volumes for 28 model sections of the uncontrolled cardiovascular circulatory system are solved. The circulatory system model is combined with the models of the controlling systems to simulate transient responses to exercise. Other characteristics of the combined model include gravity effects, muscle pumping, venous tone, venous valves, respiratory frequency, and intrathoracic pressure effects. Results of simulation tests are described for resting conditions, zero load pedaling, and four levels of exercise. Transient response characteristics and steady model values are presented and compared with experimental data. It is concluded that the neurogenic proportional controller hypothesis, combined with the metabolic control factors, can satisfactorily simulate submaximal exercise responses.
A case study of a clinical inservice teacher education model
(1979) Townsend, Karan Graef; Freiberg, H. Jerome; Berneman, Louis P.; LeCompte, Margaret D.; Melville, Margarita B.; Weber, Wilford A.
Introduction. Problems and issues related to inservice teacher education are addressed extensively in educational literature. A selected review of inservice literature revealed five prominent assumptions about effective inservice education, that is, inservice education which has an impact on the classroom performance of teachers. These assumptions, later reorganized into nine assumptions, guided the design, development, implementation, and evaluation of the clinical inservice program which was the subject of this study. The nine assumptions are: 1. Effective inservice teacher education programs provide needs-based content. 2. Effective inservice teacher education programs provide field-based instruction. 3. Effective inservice teacher education programs provide active learning. 4. Effective inservice teacher education programs manifest systemic and parity-based collaborative processes. 5. Effective inservice teacher education programs establish and maintain concise, open, and clearly understood communication systems. 6. Effective inservice teacher education programs provide intangible and tangible support systems. 7. Effective inservice teacher education programs provide for analysis of past innovative experiences of the participants and use the information to guide current programmatic processes. 8. Effective inservice teacher education programs provide for analysis of central administration goals, procedures, and policies and use the information to guide current programmatic processes. 9. Effective inservice teacher education programs provide for analysis of organizational climate of a given school, school system, and community and use the information to guide programmatic processes. Statement of the Problem. Inservice literature primarily has been concerned with describing the content and structure of inservice programs to the virtual exclusion of asking why and how programs succeed or fail. Inservice teacher educators know what they planned and what resulted, yet they lack verifiable information about factors which emerged during each phase of the program that may have influenced the effectiveness of the program. Furthermore, evaluation processes used in conjunction with the majority of inservice programs often do not reveal whether competencies acquired in the inservice setting transfer to the classroom setting. Purpose of the Study. The purposes of this proposed research were to: (a) determine the extent to which teachers exhibited new knowledge, skills and attitudes in their classrooms; (b) identify and describe factors which facilitated or impeded the extent to which transfer from inservice setting to classroom setting occurred; (c) determine the extent to which the inservice program approximated a clinical inservice teacher education model; and (d) identify and describe factors which facilitated or impeded the extent to which the program approximated the inservice model. Research Procedures. A case study paradigm using a ethnographic research technique was selected for this investigation because it would enable the documentation and analysis of a broad range of factors associated with the inservice program. Among those who were observed and/or interviewed were: the school principal; the designers, developers, implementors, and evaluators of the program; seven inservice consultants; four clinical instructors; and six teachers who volunteered to participate in both the inservice program and the research study. The descriptive field data was coded according to specified categories which were identified prior to and during initial analysis of the data. The data were further analyzed through the modus operandi method to determine trends and patterns which were presented as findings and hypotheses. Results of the Study. The data indicate that the assumptions were operationalized to varying degrees within the context of the program which was investigated; some transfer of new competencies took place; and operationalization of the assumptions may be positively associated with transfer. [...]
A case study of parents' and program implementors' perceptions of early childhood intervention programs
(1986) Baumgarten, Thomas L.; Strahan, Richard D.; Georgiades, William D. H.; Howard, Walter R.; Udinsky, B. Flavian; Herrscher, Barton R.
The purpose of this study was to investigate the desirability and likelihood of early childhood intervention (ECI) programs from the point of view of program implementors and parents of infants who are attending ECI programs living in a metropolitan and a rural area. This study also investigated whether differences existed between the metropolitan parents and the rural parents. The sample consisted of 40 metropolitan and 31 rural parents whose infants were enrolled in ECI programs in Texas. Interviews were conducted with 19 program implementors. A desirability/likelihood questionnaire was administered to the parents. The instrument was used to identify and forecast 21 event statements related to the most to least desirable and likely service delivery components. A mean desirability and likelihood score by event was determined for the metropolitan and the rural sample. A two-tailed t-test was used to determine significant differences. [...]

Browse

Browsing Digitized Theses and Dissertations (1940 - 2009) by Title

Results Per Page

Sort Options