Chlamydomonas reinhardtii. Chloroplasts. RNA splicing. Ribosomes.

Thesis (Ph. D.)--University of Texas at Austin, 1998. | Vita. Includes bibliographical references (leaves 212-225). Available also in a digital version from Dissertation Abstracts.

Monoamine oxidase. Biogenic amines. Enzymes.

Thesis (Ph. D.)--University of Texas at Austin, 1998. | Vita. Includes bibliographical references (leaves 197-208). Available also in a digital version from Dissertation Abstracts.

Fiber optics. Optical fiber detectors. Interferometers.

Thesis (Ph. D.)--University of Texas at Austin, 1998. | Vita. Includes bibliographical references (leaves 82-84). Available also in a digital version from Dissertation Abstracts.

Stout, George Frederick, Stout, George Frederick, Universals (Philosophy) Ontology. Individuation (Philosophy)

Thesis (Ph. D.)--University of Texas at Austin, 1998. | Vita. Includes bibliographical references (leaves 209-213). Available also in a digital version from Dissertation Abstracts.

Toric varieties. Field theory (Physics)

Thesis (Ph. D.)--University of Texas at Austin, 1998. | Vita. Includes bibliographical references (leaves 80-84). Available also in a digital version from Dissertation Abstracts.

Privacy Business communication Communication

Thesis (Ph. D.)--University of Nebraska--Lincoln, 1999. | PDF text: [2] p. abstract, vii, 132, a-i leaves : ill. Includes bibliographical references (leaves 127-132 of dissertation).

O Brien, Lawrence F. United States

Thesis (Ph. D.)--University of Texas at Austin, 1998. | Vita. Includes bibliographical references (leaves 360-369). Available also in a digital version from Dissertation Abstracts.

Prejudices African Americans Jews Sex discrimination against women Antisemitism

Thesis (Ph. D.)--University of Texas at Austin, 1998. | Vita. Includes bibliographical references (leaves 545-588). Available also in a digital version from Dissertation Abstracts.

United States. El Paso (Tex.) El Paso (Tex.) El Paso (Tex.) Mexico

Thesis (Ph. D.)--University of Texas at Austin, 1999. | Vita. Includes bibliographical references (v. 2, leaves 617-642).

Children s writings, American. English language

Thesis (Ph. D.)--University of Texas at Austin, 1998. | Vita. Includes bibliographical references (leaves 420-427). Available also in a digital version from Dissertation Abstracts.

Physics, Condensed Matter

Hydrogenated amorphous carbon films (a-C:H) have beendeposited on glass, fused silica, Si, Mo, Al, and 304 stainlesssteel at room temperature by plasma enhanced chemical vapordeposition (PECVD). The rf glow discharge and plasma kinetics ofthe deposition process were investigated. Negative self-biasvoltage V{dollar}{bsol}sb{lcub}{bsol}rm b{rcub}{dollar} and gaspressure P were used as two major deposition parameters. Thehydrogen concentration, internal stress, mass density, hardness,and thickness ...

Component mode synthesis (CMS) is a method of dynamicanalysis, for structures having a large number of degrees offreedom (D.O. F.). These structures often required lengthycomputer CPU time and large computer memory resources, if solveddirectly by the finite-element method (FEM). In CMS, thestructure is divided into independent components in which theD.O.F. are defined by a set of generalized coordinates defined bydisplacement shapes. The number of the generalized coordinatesare much less than th...

Development

Much of organizational theory is rooted in the organismmetaphor following the structural-functionalist paradigm (Morgan,1986). Research has focused on the giveness of the social order,the uncovering of patterns of social life to demonstratetranshistorical, enduring regularities. This thesis is alongitudinal study of a management group, a description of theevolution and transformation of the group s awareness over a fiveyear period. Adopting a hermeneutic perspective, this study is adiscourse ana...

Engineering, Materials Science

The structure and microstructure of the new perovskitesuperconductors,MBa{dollar}{bsol}sb2{dollar}Cu{dollar}{bsol}sb3{dollar}O{dollar}{bsol}sb7{dollar}(where M = Y, Eu, Gd; known as 123) andLa{dollar}{bsol}sb{lcub}{bsol}rm2-x{rcub}{dollar}Sr{dollar}{bsol}sb{lcub}{bsol}rmx{rcub}{dollar}CuO{dollar}{bsol}sb4{dollar} (known as 214), andthe related perovskites,Eu{dollar}{bsol}sb2{dollar}CuO{dollar}{bsol}sb4{dollar},Gd{dollar}{bsol}sb2{dollar}CuO{dollar}{bsol}sb4{dollar} andLa{dollar}{bsol}sb2{dollar}...

; Social Work

There are at least 10 million women in this country whohave placed an infant for adoption, yet these women and theirexperiences have been little studied. Indeed, a shroud ofmystery, secrecy, and stigma remains. The purpose of thisphenomenological study was to (a) clarify the nature of loss asexperienced in birthmothers searching their adopted children; (b)describe responses associated with this type loss; and (c)identify factors related to such loss which have implications forguiding nursing pra...

Biology, Molecular

A malic enzyme (L-malate,NADP{dollar}{bsol}sp+{dollar}-oxidoreductase (decarboxylating),EC 1.1.1.40) cDNA clone derived from the goose uropygial glandwas used to isolate homologous cDNA clones from duck liver andchicken liver cDNA libraries. These clones, in turn, were used toisolate and partially characterize additional cDNA clones derivedfrom embryonic chick hepatocytes cultured in the presence of bothinsulin and thyroid hormone. One of these clones, pCME5, containsan insert of {dollar}{bsol}s...

Biology, General

Parathyroid hormone has been shown to bind to the{dollar}{bsol}beta{dollar} subunit of the proton transportingATPase found in mitochondria and bacteria. This binding has beenexamined further with purified F{dollar}{bsol}sb1{dollar} ATPaseenzyme, submitochondrial particles, and intact mitochondria. PTHspecifically causes a three fold activation of ATPase activity ofisolated rat kidney mitochondria. Oxidized forms and fragments ofPTH were less effective at activating this activity than 1-34 or1-84...

Pathology; Biology, General

This study has used several systems to characterize (i)the transport of membrane proteins to and from the cell surface,and (ii) the maintenance and structural organization of the Golgicomplex. The transport of membrane proteins was studied using theregulated surface expression of the C3b/C4b receptor, CR1, onhuman neutrophils as a model. We developed a new method forquantitative immunofluorescence of intracellular antigens, andused this approach to document upregulation of cell surface CR1and to...

and Penology

The struggle to define obscenity has engaged the greatinstitutions and passions of Anglo/American democratic society.Legislatures, courts, religious groups, and free speechabsolutists have all participated in the battle from time totime. This struggle, sometimes contentious, occasionallyreasonable, has revolved around four main elements of obscenity:(1) the nature of the work; (2) the community or class to beprotected; (3) the work as a whole; and (4) the purpose of thework. Regina v. Hicklin, t...

; Women s Studies

Between 1945 and 1990, significant changes occurred incurriculum policy making in the female secondary independentschools. These changes highlighted the following importanttrends: the curriculum committee replaced the Head of School asthe primary policy maker; and new or revisioned factors,exclusive of the gender factor, became important in curriculumdetermination i.e., internal: Head of School, Board of Trustees,faculty, students, parents, alumna, and tradition; external:colleges, demographics ...

Health Sciences, Nursing

Painful breast engorgement is one of the main physicaldifficulties experienced by mothers in the first week postpartum.As it involves the processes of lactogenesis, engorgement hasserious implications for the short-term and long-term success oflactation and breastfeeding. Management of engorgement variesgreatly in the clinical setting. None of the various treatmentmodalities, however, has been evaluated for effectiveness inrelieving the pain and degree of engorgement. The purpose of thisinvestig...

The surface potential and the mode of double layerinteraction play an important role for the study ofphysicochemical phenomena in many colloidal systems, such ascolloidal stability and rheology of dispersions. However,experimental studies in this area are scarce and limited to a fewtransparent or conductive materials due to difficulties inmeasuring small interacting forces in the separation distance ofless than 100 nm. A new experimental method was developed toinvestigate the feasibility of dete...

Chemistry, Inorganic

The binucleating Schiff base ligandsH{dollar}{bsol}sb2{dollar}dhphpy{dollar}{bsol}sb2{dollar} (1) andMe{dollar}{bsol}sb2{dollar}dhphpy{dollar}{bsol}sb2{dollar} (2)are prepared as neutral species through condensation of two molesof 2-pyridinecarboxaldehyde or 2-acetylpyridine, respectively,with one mole of 1,4-dihydrazinophthalazine (dhph). The chemistryof ligands 1 and 2 and the binuclear copper(II) and monozinc (II)complexes of ligand 2 is studied to provide an understanding ofthe spectral, ele...

Applied Mechanics

A model of cumulative creep-fatigue damage has beendeveloped which is based on the use of damage curve equations todescribe the evolution of creep-fatigue damage for four basiccreep-fatigue cycle types. These cycle types correspond to thefour fundamental cycles of the StrainRange Partitioning LifePrediction approach of Manson, Halford and Hirschberg. A conceptreferred to as Damage Coupling is introduced to analyticallyaccount for the differences in the nature of the damageintroduced by each cycl...

Chemistry, Organic

This thesis describes the development of asynthetically useful penaldic acid equivalent, 1,1-dimethylethyl(R)-4-formyl-2,2-dimethyl-3-oxazolidine carboxylate (5b). Thisdifferentially protected {dollar}{bsol}beta{dollar}-hydroxy{dollar}{bsol}alpha{dollar}-aminoaldehyde was obtained in 60-70%distilled yield over 4 steps from commercially available D-serineand shown to be 94-96% enantiomerically pure by{dollar}{bsol}sp1{dollar}H NMR,{dollar}{bsol}sp{lcub}19{rcub}{dollar}F NMR, and HPLC analyses ofi...

Biomedical

Spectral analysis is a method for quantizing thefrequency component of the beat-to-beat variations in cardiaccycle length. In subjects with a normal sinus rhythm, cyclelength variations at the respiratory frequency, the so-called"respiratory sinus arrhythmia", have been shown to be anoninvasive measure of vagal activity. The goal of my researchhas been to apply the techniques of spectral analysis to thefluctuations in ventricular cycle length during non-sinusrhythms, and to determine t...

Engineering, Materials Science

Minute amounts of Pb(i.e. 5ppm-500ppm) are shown toinduce embrittlement of Al-Mg-Si alloys at ambient temperatures.In the high Pb alloys (i.e. {dollar}>{dollar}100 ppm), Pb wasusually associated with particles containing Si, Mn and Fealthough isolated Pb signals were often found on the grainboundary. In the low Pb alloys (i.e. {dollar}<{dollar}20ppm),Pb was only found in association with Fe-containing particles.These sites of high Pb concentration are preferential sites forcrack in...

The present study was predicated on the hypothesis thatretinoids (analogues of vitamin A) have a direct effect on humanfemale reproductive tract epithelia and that they modulate theeffects of estradiol (E{dollar}{bsol}sb2{dollar}) andprogesterone (P) on these tissues. To study retinoid and steroidregulation of differentiation in vitro I used culturedectocervical epithelial cells (ECE) grown on 3T3 monolayers.Confluent ECE cells free of non-epithelial cells as judged bylack of expression of vimen...

DnaQ (mutD) encodes the editing exonuclease subunit(epsilon) of DNA polymerase III. Deletion-substitution alleles ofthe dnaQ gene were constructed in vitro and then introduced intothe Salmonella chromosome to yield dnaQ null mutants. These nullmutants exhibited a growth defect and as a consequence of thepoor growth of dnaQ mutants, these strains were replaced withinsingle colonies by derivatives carrying an extragenic suppressormutation that compensated the growth defect. Sixteenindependently de...

This study is an investigation of patients judgmentsof similarities and differences among coping strategies forchronic pain and seeks to formulate an empirically-based model ofa systematic structure (i.e., a classification system) whichdescribes the factors influencing patients understandings ofthese coping strategies. The data analytic technique ofmultidimensional scaling (MDS) was used to order data points intosalient perceptual dimensions influencing subject s responses tothe experimental tas...

Cerebral high energy metabolites and metabolic endproducts were measured during and following total cerebralischemia in the rat (TCI). During ischemia, lactate accumulationwas greatest in the hippocampus, followed by the cerebral cortexand striatum. Following reperfusion, the rate of lactateclearance was slower in the hippocampus than in the other tworegions. Regional cerebral blood flow (CBF), cerebral plasmavolume (CPV) and calculated mean transit time (MTT) weredetermined following reflow of ...

Health Sciences, Pathology

This thesis encompasses two linked sets of studies. Oneset focuses on novel developments in the field of stable genetransfer technology, particularly applicable to human cells, andthe other employs some of these technological developments formodel analyses of selected hematopoietic molecules withregulatory functions. The gene transfection studies haveculminated in both the introduction of a series of highlyutilitarian episomal expression vectors and in an expansion ofthe repertoire of gene trans...

Health Sciences, Pathology

CD8 is expressed on the surface of a subset of Tlymphocytes which have two broadly defined functions: (1) class Imajor histocompatiblity complex (MHC)-restricted cytotoxicityagainst virally-infected, allogeneic, and other cellular targets;and (2) immunoregulation of other lymphocytes. In order to definethe role of CD8 in mediating these two distinct T cell functions,an experimental approach utilizing gene transfection analysis tomodulate CD8 surface expression in natural and foreign cellularsett...

Chemistry, Biochemistry

Membrane traffic between endocytic and exocyticorganelles has recently been established. Some cell surfacereceptors are transported to the Golgi complex. In thisdissertation, I used cation-independent mannose 6-phosphatereceptor (MPR{dollar}{bsol}sp{lcub}{bsol}rm CI{rcub}{dollar}) andtransferrin receptor (TfR) as model molecules to study andcharacterize the cell surface to the Golgi transport pathway.MPR{dollar}{bsol}sp{lcub}{bsol}rm CI{rcub}{dollar} functions inthe packaging of both newly-made ...

I have studied voltage dependent calcium channels inthe A7r5 smooth muscle cell line using electrophysiological andbiochemical techniques. A dihydropyridine (DHP) sensitive inwardcurrent resembling the L -type calcium current was the dominantcurrent in cells under voltage clamp. Inward currents wereblocked by extracellular Cd{dollar}{bsol}sp{lcub}2+{rcub}{dollar}(IC{dollar}{bsol}sb{lcub}50{rcub}{dollar}{dollar}{bsol}sim{dollar}1 {dollar}{bsol}mu{dollar}M), andstimulated (in about half of the cel...

Pharmacology

The neurotransmitter and neuropeptide phenotypesexpressed by autonomic neurons are highly correlated with theperipheral target of the neuron. In principle, this high degreeof correlation could be achieved during development by theprecise innervation of appropriate targets by phenotypicallyprespecified neurons. Alternatively, phenotypically labileneurons could be instructed by the target environment tosynthesize the specific neurotransmitters and neuropeptides whichare appropriate for that target...

Literature, American

This dissertation explores the significance ofMelville s conception of the original character, described inchapters 14 and 44 of The Confidence-Man. It examines his use ofthis characterological type for the central characters of"Bartleby, the Scrivener," Moby-Dick, The Confidence-Man andBilly-Budd. Most of the critical literature focusing onMelville s characters discusses their emblematic values andfunctions as symbolic referents within socio-cultural or literarycontexts. My claim is t...

Sciences, Nursing

Nursing care requirements and nursing resourceconsumption are essential data for programming and staffingdecisions made by nurse administrators in home health care.However, it is not known how nursing needs of home health carepatients relate to the amount of nursing care consumed. Thisretrospective exploratory study examined nursing carerequirements and nursing resource consumption within a systemsframework in the home health setting. The input variable ofinterest was nurse expertise. Throughout...

Metallurgy; Physics, Condensed Matter

Promising results for the development of aceramic/ceramic composite to be used for structural applicationsin the ultra high temperature range(1650-1850{dollar}{bsol}sp{bsol}circ{dollar}C) have been obtainedfor alumina reinforced with titanium or zirconium diboribe coatedwith molybdenum disilicide. Prior to this achievement, severaltheoretical and experimental studies of particulate compositeswith (TiB{dollar}{bsol}sb2{dollar} orZrB{dollar}{bsol}sb2{dollar}) imbedded in(ZrO{dollar}{bsol}sb2{dolla...

Health Sciences, Nursing

According to recent literature, the unified educationalprocess setting (EPS) affects the professional socializationprocess, however, this has not been empirically validated(Christman, 1979; Ford, 1981; Mauksch, 1981). The purpose of thisstudy was to examine the influence of the unified educationalprocess setting (environmental energy field) on professionalismscores of beginning students, senior students, recent graduates,and faculty (human energy fields). A cross-sectional groupcomparison design...

What are the mediating and cumulative processes bywhich environmental factors impact on nurses ability to achievenursing objectives for clients? This study examined therelationship between dimensions of a hospital organizational:climate, and peer culture, the empowerment of nurses and clientoutcome. The theoretical framework for the study is a blend ofconstructs from Nightingale (1858, 1859, 1860, 1863) who focusedon environment and Kim (1983, 1987) who combines collaborativedecision-making and ...

Chemistry, Physical

In this work the reaction kinetics of glucoseelectrooxidation was investigated on single crystal goldelectrodes with seven different orientations in phosphate buffer(pH = 7.4). The Au(100) surface was found more active than theother two low-index planes, Au(110) and Au(111). The steppedAu(755) = 6(111) x (100) surface exhibited the highest peakcurrent. The terrace orientation, the step orientation and thestep density are reflected in the reaction rate. The mostdesirable surface for the sensor ap...

Biology, Molecular

Glioblastomas are highly malignant tumors found in thecentral nervous system. To define some of their molecular drivingforces, transcription rates of oncogenes and growth factors wereexamined in seven human glioblastoma cell lines and in threenormal human glial cell populations. The following genes wereover-expressed: PDGF-B in 4/7, EGF-R in 1/7, NEU in 1/7, IGF-2 in1/7, ROS in 2/7, C-MYC in 2/7, and FOS in 1/7 glioblastomas.PDGF-R was under-expressed in 4/7. This suggests that these genesmay be...

Biology, Molecular

Chicken syncytial virus (CSV) activates c-myc inchicken B-cell lymphomas by integrating within the c-myc locusand promoting c-myc transcription from the3{dollar}{bsol}sp{bsol}prime{dollar} LTR. Such myc-associatedproviruses are frequently partially deleted, and, in contrast towild-type proviruses which initiate {dollar}>{dollar}98% ofviral transcription in the 5{dollar}{bsol}sp{bsol}prime{dollar}LTR, these proviruses initiate {dollar}>{dollar}98% of viraltranscription in the 3{doll...

Insulin and insulin-like growth factors (IGFs) arerequired as growth promoting factors by the fetus. The most rapidrate of fetal growth and development occurs during the firstthree months of gestation. Since maternal insulin does not crossthe blood-placental barrier and since the fetal pancreas does notbegin to secrete insulin until 12 to 14 weeks of gestation,insulin or IGFs required for this initial rapid phase of fetaldevelopment must have come from the fetus or the placenta. Here,we report t...

Oncology; Psychology, Clinical

The purpose of this study was to examine therelationships among mood, coping, perceived stress and sideeffects from chemotherapy on individuals newly diagnosed withlung cancer and the temporal experience of these over fourconsecutive courses of intravenous combination chemotherapy.Fifty persons, 39 males and 11 females, mean age 62.6 years, withstages III or IV adenocarcinoma of the lung participated in thestudy. This longitudinal study had five time points of datacollection, pre-treatment and t...

Chemistry, Biochemistry

Eukaryotic protein synthesis requires two proteinfactors which bind aminoacyl-tRNA in a GTP-dependent manner. One,initiation factor 2 (eIF-2), binds only the initiatorMet-tRNA{dollar}{bsol}sb{lcub}{bsol}rm i{rcub}{dollar} andcarries it to the 40S subunit of the ribosome. The other,elongation factor 1a (EF-1a) binds all other aminoacyl-tRNAs tothe elongating 80S ribosome. The goal of this thesis is tocharacterize the structural aspects of these proteins. EF-1a issimilar to the amino acid level to...

Sociology, Public and Social Welfare

A study was designed to explore parents reactions tothe authority of public child welfare caseworkers. Thirteen"involuntary clients" involved with a large public child welfareagency in Ohio served as subjects. Semi-structured interviewswith each of the subjects focussed on parental perceptions of"interventions" by caseworkers and the "meaning" of theexperience for each subject as he or she became involved with, orhad children in the custody of, a public agency. Inte...

Anthropology, Cultural

Children with chronic illnesses have a unique set ofhealth and illness experiences. The purpose of this research wasto investigate how children with juvenile diabetes (IDDM)explain, manage and cope with their illness. Three sets ofinterviews were administered to twenty-six children who werediagnosed as diabetic for at least six months. Theoreticalperspectives were gathered in initial and follow-up interviews.Weekly interviews, gathered by telephone, investigated healthmaintenance activities and ...

Engineering, Metallurgy

The effect of powder and processing variables on themicrostructure of an extruded FeAlZrB alloy has beeninvestigated. Results shows that the key parameters inmicrostructural development are extrusion temperature and powderparticle size. In addition to powder and processing variables,the effect of a 1 vol%Y{dollar}{bsol}sb2{dollar}O{dollar}{bsol}sb3{dollar} dispersionwas investigated. The microstructure of this material was veryfine grained. By manipulating powder and processing parametersand hea...