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Role of Calcium and Phospholipids in Transepithelial Sodium Ion and Water Transport in Amphibian Epithelia: The present investigation is concerned with determining the role of calcium, phospholipids, and phospholipid metabolites on transepithelial sodium and water transport in response to antidiuretic hormone (ADH). These studies utilize the frog skin for determining sodium transport and amphibian urinary bladder for water flow measurements and scanning electron microscopy of cell surface morphology. The results demonstrate that phospholipids and phospholipid metabolites containing arachidonic acid stimulate transepithelial sodium transport through amiloride sensitive channels and the action of these lipids involves the synthesis of prostaglandins. These lipids also inhibited the increase in water flow induced by ADH, and this effect was prevented with prostaglandin synthesis inhibitors. Prostaglandins alter intracellular calcium concentrations and agents effecting calcium metabolism alter cell surface morphology and the changes in surface substructure induced by ADH. These observations support the hypothesis that alterations in membrane permeability to water and ions may involve metabolism of membrane phospholipids and prostaglandin biosynthesis.
The Role of Chosen Creativity Measurements in Observed Relationships to Personality: Creativity is a complex construct that is conceptualized and measured in multiple ways. This study examined the relationship between creativity and personality taking this into account. It was hypothesized that applying different conceptions and measures would cause variation in the creativity-personality relationship. The participants (N = 224) were undergraduate students completed six creativity measures, a personality inventory, and a demographic questionnaire. Personality predicted more creative production (R2 = .277) than creative potential (R2 = .176) and more self-reported creativity (R2 = .348) than that which was externally-rated (R2 = .149). Personality predicted creativity beyond demographic and intellect variables, but the effects varied based on the creativity measure. Openness was most consistently and strongly related to creativity. Other personality factors demonstrated suppression effects in multiple models. Overall, the results suggest that despite relatively small effects of personality on creativity, it can help strengthen prediction in creativity models. Implications for educational settings and future research are discussed.
The Role of College and University Athletic Trainers in Texas and Bordering States: The problem of this study was to compare the existing role of college and university athletic trainers in Texas and bordering states with the role of college and university athletic trainers, (1) as recommended by national athletic training specialists and (2) as recommended by college and university athletic directors in Texas and bordering states.
Role of Combat Exposure and Insomnia in Student Veterans' Adaptation to College: Since 2002, the number of veterans enrolled in universities has nearly doubled, although 30-40% of veterans fail to complete their degree. While research efforts to understand the challenges veterans face transitioning from military life to college has increased in recent years, few studies have looked beyond the effects of post-traumatic stress disorder (PTSD). Insomnia is the most frequently reported symptom of combat veterans and can have serious implications for college students. The purpose of this study was to examine the role of insomnia and student veteran adaptation to college relative to civilian students. College students (N = 588) were administered a Background Information Questionnaire, the Insomnia Severity Index, the Deployment Risk and Resilience Inventory, and the Student Adaptation to College Questionnaire. Results revealed that students with insomnia reported significantly lower adaptation to college than students without insomnia. Student veterans reported better academic and personal-emotional adaptation to college than civilian students, while civilians reported better social adjustment than veterans. Although combat veterans without insomnia scored consistently higher academic adjustment than non-combat veterans and civilian students, when present insomnia seemed to have a greater negative effect on combat veterans’ academic adjustment relative to civilian students. Furthermore, insomnia mediated the relationship between combat exposure and veteran’s personal-emotional adjustment to college. Implications and future directions for research are discussed.
The Role of Combat Exposure, Moral Injury, and Trauma Symptoms in the Lives of Military Families: The current study used a sample of service members and veterans to explore the association of combat exposure and perceptions of the family system using a moderated mediation model. Combat veterans over the age of 18 with a family of creation (N = 154) completed an online survey through which they were administered a background information questionnaire, the Combat Experiences subscale of the Deployment Risk and Resilience Inventory – 2, the Moral Injury Events Scale, the PTSD Checklist for DSM-5, the Patient Health Questionnaire, the Beck Anxiety Inventory, the McMaster Family Assessment Device, and the Dyadic Adjustment Scale – Revised. Results of six moderated mediation analyses revealed that exposure to potentially morally injurious events (pMIEs) moderated the relationship between (1) combat exposure and couple relationship satisfaction and (2) combat exposure and family functioning, both via PTSS, anxious symptoms, and depressive symptoms. To our knowledge, the empirical models presented in this paper are the first to model the role of pMIEs in SMV literature, and provide a foundation for other models to emerge moving forward. Implications and limitations are discussed.
The role of common stimulus functions in the development of equivalence classes.: College students were exposed to training designed to teach nine simple discriminations, such that sets of three arbitrary visual stimuli acquired common functions. For seven of eight participants, three 3-member contingency classes resulted. When the same stimuli were presented in a match-to-sample procedure under test conditions, four participants demonstrated equivalence-consistent responding, matching all stimuli from the same contingency class. Test performance for two participants was systematically controlled by other variables, and for a final participant was unsystematic. Exposure to a yes/no test yielded equivalence-consistent performance for one participant where the match-to-sample test had not. Implications for the treatment of equivalence as a unified, integrated phenomenon are discussed.
The Role of Competitiveness in Counter-System Counterplans in Academic Debate: Allen J. Lichtman and Daniel M. Rohrer write that "Unfortunately, formal debate theory tends to lag behind the actual practice of competitive debate" (70). This statement accurately describes the current controversy surrounding the counter-system counterplans and how they may affect traditional debate theory. These counterplans are increasingly employed by negative teams in intercollegiate debate, but so far, there is no contemporary attempt to explain how they fit into current debate theory. This study will analyze this new genre of counterplans by answering the following questions.
The Role of Contingent-Anxious Versus Temporally Yoked Conditioned Stimulus Termination in the Enhancement or Conservation of Learned Fear: This study investigated whether contingent-anxious conditioned stimulus termination was more important than temporally yoked termination in producing conservation or enhancement of learned fear. Thirty psychology students, twenty-six females and four males, were administered item thirty-nine from the Fear Survey Schedule and an avoidance test. After in vivo treatment exposure to a harmless snake, post-test measures identical to pretests revealed that contingent-anxious subjects retained significantly more fear (p <.05) on both indexes than temporally yoked subjects. No enhancement was found and only on the subjective measure did contingent-anxious subjects show fear conservation when contrasted with no-treatment controls (p >.05). Implications for "implosive" therapies were discussed.
The Role of Contract Training by Academic Institutions in Corporate Education and Training Programs: This study explored the role of contract training provided by North Texas higher education institutions in the education and training programs administered by area businesses employing more than 100 people. A survey instrument was mailed to corporate trainers that were members of the Dallas Chapter of the American Society of Training and Development in businesses employing more than 100 people. A total list of 292 trainers generated 71 usable responses. The purposes of this study were to: (a) determine the extent to which corporations use academic institutions for contract training, (b) determine the academic institutions in North Texas that training managers in the Dallas area believe are suitable contract training partners, (c) identify what subject areas are perceived as top educational priorities by training managers and are perceived to be suitable for contract training by academic institutions, (d) determine educational and training subjects for which corporations would be willing or prefer to utilize contract training by academic institutions, and (e) identify the subjects in which corporations currently use contract training by academic institutions.
The Role of Counselor Trainees' Co-Regulated Mindfulness: A Cluster-Randomized Controlled Study: Mindfulness is a practice that has the potential to help counseling students build a variety of skills that are necessary for clinical efficacy, including therapeutic presence, attunement, empathy, cognitive flexibility, and non-reactivity. However, mindfulness is rarely taught to students in mental health training programs, which makes it an untapped possibility to improve counselor education. Additionally, rarely do researchers explore the role of counselor mindfulness and counselor trauma on clients' perceptions of therapeutic presence. Therefore, the purpose of this study is to explore the effects of a 15-week mindfulness training program for counseling students to understand its effect on client's perceptions of therapeutic presence, counselor state mindfulness development, and counselor trauma symptoms. Participants in this cluster-randomized controlled intervention were masters counseling students currently enrolled in clinical practicum accredited by the Counsel for the Accreditation of Counseling and Related Educational Programs (CACREP). Counselors provided data at three timepoints on their state mindfulness, trauma symptoms, and therapeutic presence. Clients provided data at three timepoints on their perceptions of their counselor's therapeutic presence. We analyzed data through repeated measures ANOVA and two-level longitudinal hierarchical linear models. Implications for counselor education, professional counselor development, and future research are offered and limitations are discussed.
The Role of Crystallographic Texture in Achieving Low Friction Zinc Oxide Nanolaminate Films: Metal oxide nanolaminate films are potential high temperature solid lubricants due to their ability to exhibit significant plasticity when grain size is reduced to the nanometer scale, and defective growth structure is achieved by condensation of oxygen vacancies to form intrinsic stacking faults. This is in contrast to conventional microcrystalline and single crystal oxides that exhibit brittle fracture during loading in a sliding contact. This study emphasizes the additional effect of growth orientation, in particular crystallographic texture, on determining the sliding friction behavior in nanocolumnar grain zinc oxide films grown by atomic layer deposition. It was determined that zinc oxide low (0002) versus higher (101 ̅3) surface energy crystallographic planes influenced the sliding friction coefficient. Texturing of the (0002) grains resulted in a decreased adhesive component of friction thereby lowering the sliding friction coefficient to ~0.25, while the friction coefficient doubled to ~0.5 with increasing contribution of surface (101 ̅3) grains. In addition, the variation of the x-ray grazing incident angle from 0.5° to 5° was studied to better understand the surface grain orientation as a function of ZnO layer thickness in one versus four bilayer nanolaminates where the under layer (seed layer) was load-bearing Zn(Ti,Zr)O3.
The Role of Cultural Self-Construal and Autonomy on Athlete Preference for Intervention: Self-construal (SC) refers to the way people perceive their identities in relation to self and others (Markus & Kitayama, 1991b). It has been found in the literature to influence thinking, decision-making, and preferences (e.g., Sung, Choi, & Tinkham, 2012) which suggests that a person's SC may affect her/his preference on psychological interventions. However, no empirical studies can be located that examined this relationship. The study examined the effects of independent SC, interdependent SC, general autonomy (GA), and sport autonomy (SA) on athletes' preferences and desire to use the interventions in the future, especially how these relations might vary as a function of the type of intervention. It was hypothesized that the relationship between each of the predictors and preference for and desire to use intervention would be moderated by the type of intervention received. Four hundred and thirty-one current and former athletes were recruited to participate in this study. Participants completed a questionnaire that measured SC, GA, and SA and were then randomly assigned to receive one of two self-talk interventions, representing either a self- or other-focused intervention. Participants were asked to rate their preference for and desire to use the given intervention in the future. Results found positive significant relationships with all predictors and intervention preference, in both self- and other-focused groups. Initial hierarchical multiple and logistic regression analyses did not support a significant moderation effect of intervention type on the relationships between the independent and dependent variables. However, a post-hoc analysis that conducted a hierarchical multiple regression with participants separated by gender found a significant moderation effect of intervention type on the relationship between independent SC and preference for intervention for females only. Additional post-hoc analyses were conducted to replicate Sung et al.'s (2012) analysis procedures in which the SC continuous variables were transformed into categorical ones, and …
The Role of Cysteinyl Leukotriene Receptor 2 in Thrombocyte Aggregation: Cysteinyl leukotriene receptor 2, a G-protein coupled receptor known to be expressed and functional on human platelets. However, it seems that upon ligand activation the cysteinyl leukotriene receptor 2 activates a variety of signaling pathways in multiple cell types among different species. Previously, a former laboratory member Vrinda Kulkarni found cysteinyl leukotriene receptor 2 to be expressed on the surface of adult zebrafish thrombocytes. In this work I studied the characteristics of aggregation in adult zebrafish thrombocytes with the knockdown of cysteinyl leukotriene receptor 2. I used a newly developed knockdown method to study the function of cysteinyl leukotriene receptor 2. Knockdown of the cysteinyl leukotriene was confirmed using RT-PCR results showed p=.001, reduced sell surface level of expression of the cysteinyl leukotriene receptor 2 results showed that p=.002. I found that the knockdown of cysteinyl leukotriene receptor 2 results in prothrombotic thrombocytes by using flow cytometry p=.0001.
Role of DEFECTIVE IN SYSTEMIC DEFENSE INDUCED BY ABIETANE DITERPENOID 1 (DSA1), a Putative O-Fucosyltransferase, in Plant Systemic Acquired Resistance (SAR): Dehydroabietinal (DA), an abietane diterpenoid, was previously demonstrated to be a potent activator of systemic acquired resistance (SAR). DA also promotes flowering time in Arabidopsis thaliana by repressing expression of the flowering repressor FLOWERING LOCUS C (FLC) while simultaneously upregulating expression of FLOWERING LOCUS D (FLD), FLOWERING LOCUS VE (FVE) and RELATIVE OF EARLY FLOWERING 6 (REF6), a set of flowering time promoters. To further understand the mechanism underlying signaling by abietane diterpenoids, Arabidopsis mutants exhibiting reduced responsiveness to abietane diterpenoids were identified. One such mutant plant, ems2/7, exhibited SAR-deficiency and delayed flowering, which were found to be associated with two independent, but linked loci. The gene responsible for the SAR defect in ems2/7 was identified as DEFECTIVE IN SYSTEMIC DEFENSE INDUCED BY ABIETANE DITERPENOID 1 (DSA1). Similar to the missense mutant dsa1-1 identified in the mutant screen, the T-DNA insertion bearing null allele dsa1-2 exhibited SAR deficiency that could be complemented by a genomic copy of DSA1. The gene responsible for the delayed flowering phenotype of ems2/7 remains to be identified. DSA1 encodes a protein that is homologous to human protein O-fucosyltransferase 2. DSA1 is required for long-distance transport of the SAR signal. It is hypothesized that DSA1 is involved in the O-fucosylation-facilitated channeling through the ER/Golgi network of a protein involved in long distance SAR signaling. In a yeast two-hybrid screen, all the DSA1-interacting proteins identified are chloroplast-localized proteins, thus raising the interesting possibility of ER interaction with chloroplast and its potential role in SAR signaling.
The Role of Defects in the Quantum Size Effect: This investigation is a theoretical study of the influence of defects of finite volume on the electrical conductivity in the quantum size effect regime. Correction terms to existing equations are derived, and a physical explanation of the results is given. Many macroscopic properties of films exhibit an oscillatory dependence on thickness when the thickness is comparable to the de Broglie wavelength of an electron at the Fermi surface. This behavior is called the quantum size effect. In very thin films, scattering from surfaces, phonons, and crystal defects plays an increasingly important role. In this investigation the influence of scattering centers (defects) in semimetal films on the electrical conductivity is explored by extending existing work to include scattering centers of finite range. The purpose of this study is to determine the overall change in the conductivity and the alteration of the amplitude of the oscillations. The Boltzmann transport equation is the starting point for the calculation. An equation for the vector mean free path is derived, and a solution is obtained by the iterative process. The relaxation approximation need not be made since the vector mean free path is determined. The sample is a thin slab that is infinite in two dimensions. The assumption is made that the electron wave function is zero at the walls of the sample. It is further assumed that there is a known number of randomly located defects within the slab. The noninteracting electrons are considered free except in the vicinity of the scattering centers. The defects are characterized by a potential that is constant within a small cube and zero outside of it. This approach allows the potential matrix elements to be evaluated by expanding in a power series. The electrical conductivity is calculated for three defect sizes, and a comparison is made to 3-function …
The Role of Dreams and Visions in the Major Novels of Hermann Hesse: English-language studies of Hermann Hesse have failed to adequately explore the role of dreams and visions in his major novels. This study attempts to summarize the present state of Hesse criticism in this area and to make a systematic study of the role of dreams and visions in each of his major novels.
The Role of Eigenvalues of Parity Check Matrix in Low-Density Parity Check Codes: The new developments in coding theory research have revolutionized the application of coding to practical systems. Low-Density Parity Check (LDPC) codes form a class of Shannon limit approaching codes opted for digital communication systems that require high reliability. This thesis investigates the underlying relationship between the spectral properties of the parity check matrix and LDPC decoding convergence. The bit error rate of an LDPC code is plotted for the parity check matrix that has different Second Smallest Eigenvalue Modulus (SSEM) of its corresponding Laplacian matrix. It is found that for a given (n,k) LDPC code, large SSEM has better error floor performance than low SSEM. The value of SSEM decreases as the sparseness in a parity-check matrix is increased. It was also found from the simulation that long LDPC codes have better error floor performance than short codes. This thesis outlines an approach to analyze LDPC decoding based on the eigenvalue analysis of the corresponding parity check matrix.
The Role of Electronic Messaging in the Intermediate Business Context: This research examines the role of electronic messaging in business firms. The study presents a taxonomy of electronic mail uses, develops a theoretical framework for analyzing electronic mail impact, and investigates risks and advantages of electronic messaging. The research focus is intermediate-size firms.
The Role of Emotion in Coleridge's Religious Thought: Using these books as a springboard, and Coleridge's Aids to Reflection as the most important primary source, this thesis will explore in depth the most pertinent matters of the Christian Faith as discussed by Coleridge, with particular reference to the role of emotion in his religious thought.
The Role of Expectations on Attention Performance: AD/HD medications are shown to be significantly more successful at enhancing attention/concentration performance in individuals with AD/HD than placebo treatments. Few studies, however, have investigated the possibility of a placebo reaction in both medication and placebo groups by comparing placebo treatments to no treatment at all. Using an undergraduate population, I evaluated the effect of expectations about a treatment's efficacy on performance in an attention/concentration task. In addition to cognitive performance outcome measures, I included several physiological measures, such as heart rate variability (HRV) through respiratory sinus arrhythmia (RSA). Contrary to expectations, no differences were observed in performance on attention tasks or physiological measurements as a result of the believed efficacy of an orally administered placebo treatment.
The Role of Experiential Avoidance in Trauma, Substance Abuse, and Other Experiences: Experiential avoidance (EA) is a process in which a person attempts to avoid, dismiss, or change experiences such as emotions, behaviors, and thoughts. EA is associated with a number of psychological disorders and is generally harmful to psychological well-being. Various studies have explored the role of EA as a mediator, while others have studied EA as a moderator. The current study aimed to further understand and broaden the knowledge of the role of EA in regard to trauma, substance abuse, aggression, and impulsivity by examining relationships between these variables with EA as a mediator and as a moderator. Experientially avoidant behaviors (i.e., substance abuse, aggression, and impulsivity) were related to higher levels of EA. EA was found to partially mediate the relationship between the number of traumatic experiences and posttraumatic stress disorder (PTSD) symptoms, as well as the relationship between substance abuse and PTSD. EA was also found to moderate the relationship between PTSD symptoms and aggression. Findings from the present study as well as its limitations and future directions for research are discussed.
The Role of Faith-Based Congregations during Disaster Response and Recovery: A Case Study of Katy, Texas: When governments are unable or unwilling to provide necessary relief to communities, local faith-based congregations (FBCs) step in and fill the gap. Though shown to provide for so many needs following disaster, FBCs have largely been left out of the institutional emergency management cycle. The aim of this study was to explore the role of FBCs in the disaster response and recovery process and investigate how recovery impacts FBCs. The primary objective of this study is to gain a better understanding of FBCs and how to better integrate them into the formal emergency management process.The main questions were as follows: First, what is the role of FBCs during the disaster recovery process? Second, how do FBCs change (temporarily and permanently) during disaster recovery, and what factors may promote or inhibit change? To answer these questions, qualitative semistructured interviews were held to develop a case study of Katy, Texas and its recovery from Hurricane Harvey of 2017. The applied and conceptual implications resulting from this study, which apply to FBCs, researchers, emergency managers, and policy makers, highlight the opportunity to better incorporate FBCs formally into emergency management practices.
The Role of Family in Alcohol Consumption Among Turkish Adolescents: Alcohol consumption among adolescents is an important issue because of its link to many negative social and health problems, including depression, suicide, and aggression. Drawing from Hirschi’s social bonding theory and Agnew’s general strain theory, this study examines the effects of family relations on alcohol consumption among Turkish adolescents. Social bonding theory suggests that individuals with stronger social bonds are less likely to use alcohol than individuals with weaker social bonds. General strain theory, on the other hand, proposes that individuals with higher levels of strain due to financial difficulties and/or negative relationships are more likely to consume alcohol compared to individuals with lower levels of strain. In particular, this study proposes to examine how parental attachment, parental monitoring, time spent with family, parents’ religiosity, family economic strain, and negative life events in the family predict alcohol consumption among adolescents in Turkey. 2008 Youth in Europe (YIE) project data is used in the study. In general, the results indicate that social bonding and strain factors have significant effects on the adolescents’ alcohol consumption patterns. These findings will help to inform prevention programs aimed at reducing adolescent alcohol risk behaviors by explaining the importance of family relationships.
The role of federal district courts on desegregation: A logistic regression analysis of the factors that influence prodesegregation outcomes.: In this study I analyzed the 1089 desegregation outcomes in federal district courts that occurred between 1994 and 2004 in order to identify a) the legal and non-legal factors in the litigation process that predict pro-desegregation outcomes and b) the judicial patterns that impact the future of desegregation policy. Twenty-one legal and non-legal variables were analyzed via logistic regression analysis to identify factors that predict pro-desegregation outcomes. Only three predictor variables were statistically significant: Government Litigants; Region 3 (West) and Region 4 (Northeast.) Descriptive analyses of the data identified two trends in the pattern of litigation: The percentage of defendant wins increased after 1991 at a lesser rate than has been previously reported. I conclude that based on the results of both the quantitative and qualitative analyses the federal district courts are not a barrier to desegregation and can still be a part of a comprehensive desegregation strategy.
The Role of Female Stereotyping in Seven Elizabethan Tragedies: During the Elizabethan period, certain stereotypes existed concerning women. Seven tragedies were examined to discover the role played by those stereotypes in the dramas. These include "The Spanish Tragedy," "Edward II," "Bussy D'Ambois," "The Changeling," "A Woman Killed with Kindness," "Othello," and "The Duchess of Malfi." Female stereotyping was found to be used in three important ways: in characterization, in motivation, and as a substitute for motivation. Some of the plays rely on stereotyping as a substitute for motivation while others use stereotyping only for characterization or subtly blend the existence of stereotyping into the overall plot. A heavy reliance on stereotype for motivation seems to reflect a lack of skill rather than an attempt to perpetuate those stereotypes.
The Role of Fluency in the Emergence of the Derived Relations of Stimulus Equivalence: Fluent component performances may be more readily available for recombination into more complex repertoires. This experiment considered the stimulus equivalence preparation as a laboratory analog for the co-adduction said to occur in generative instruction. Seven adults received minimum training on 18 conditional discriminations, components of 9 potential stimulus equivalence classes. Training was interrupted periodically with tests to determine whether fluency of original relations predicted emergence of derived relations. Fluency predicted emergence in 2 of 17 instances of emergent derived relations for 4 subjects. One subject demonstrated fluency without derived relations. Training accuracies as low as 58% preceded emergence for 3 subjects. Fluency appears to be neither necessary nor sufficient for derived relations. Fluency's role may be in retention and complex application tasks rather than acquisition of behavioral relations.
The Role of Gabergic Inhibition in Modulating Receptive Field Size of Cuneate Neurons: A blockade of GABAergic inhibition increases the receptive field(RF) size of most somatosensory cortex (SI) and some ventrobasal thalamus (VB) neurons. The results suggest RF size of cuneate neurons may be modulated through GABAa and GABAb receptors, independent of firing frequency.
The Role of Governor Price Daniel as a Legislative Leader: List of tables -- Chapter I. Price Daniel: a biographical sketch -- Chapter II. Governor Daniel and the fifty-fifth Texas legislature -- Chapter III. Governor Daniel and the fifty-sixth Texas legislature -- Chapter IV. Governor Daniel and the fifty-seventh Texas legislature -- Chapter V. Techniques used by Governor Price Daniel in Exercising legislative leadership-- Bibliography.
Role of GPR17 in Thrombocyte Aggregation in Adult Zebrafish: GPR17, a uracil nucleotide cysteinyl leukotriene receptor, belongs to the GPCR (G protein coupled receptor) family. It has been shown recently that inhibiting this protein in the nervous system in mice can lead to blockage of oligodendrocyte maturation, which supports myelin repair. Interestingly, our laboratory found GPR17 in thrombocytes. However, we do not know whether it has any function in thrombocyte aggregation or the nature of the ligand. In this paper, we studied the role of GPR17 in hemostasis, which is a fundamental defense mechanism in the event of injury. Using zebrafish as a model system, our laboratory has studied specifically thrombocytes, which play a significant role in hemostasis. The major reasons to use zebrafish as a model system are that their thrombocytes are functionally equivalent to human platelets, the adult fish are amenable to knockdown experiments, and they are readily available in the market. This study was performed by using a piggy back knockdown method where we used a chemical hybrid of control morpholino and an antisense oligonucleotide sequence leads to the degradation the mRNA for GPR17. After knockdown GPR17 in thrombocytes, the percent difference of the thrombocytes aggregation between the control and knockdown blood samples was measured by flow cytometry. We used various thrombocyte agonists to study differences in aggregation between the control and knockdown blood samples. The study showed that knockdown of GPR17 resulted in no significant differences in percent thrombocyte aggregation between control and agonist treated samples except for a slight increase in collagen-treated samples. Thus, it appears that GPR17 has no significant role in hemostasis.
The Role of Height and Weight in the Performance of Salesmen of Ordinary Life Insurance: Despite the obvious importance attached to the psychological significance of height and weight in everyday life, few researchers have studied the relationship of these variables to the sales performance of ordinary life insurance salesmen. In the present study, it was hypothesized that (1) taller and/or heavier ordinary life insurance salesmen are more successful than shorter and/or lighter ordinary life insurance salesmen; (2) those who possess more "ideal statures" are more successful than those who do not; and, secondarily, (3) life insurance companies tend to hire taller and/or heavier applicants for life insurance sales positions. The results of this study offer further support for the view that many sales managers and recruiters tend to believe that "the bigger they are, the better," and to select applicants accordingly, with the qualification that in this sample, female agents were taller, but lighter than average. These findings are discussed in terms of their implications for the life insurance industry and future investigations.
The Role of Higher Education in Africa: a Study of the Attitude of African Educators Toward the Tananarive Recommendations: This study concerns the perceptions of African educators concerning the role of higher education in Africa. The study investigates African educators' awareness, understanding, opinions, and reactions to the role of higher education as defined by the Tananarive Conference on the development of higher education in Africa. The data were collected through personal interviews with 80 educators affiliated with the universities of the English—speaking countries in Middle Africa. The findings of the study reveal that (a) the Tananarive recommendations are still realistic and relevant to the African situation; (b) African educators agree that universities in Africa must contribute to the definition and development of African economic, social, and cultural goals; (c) African universities are judged mainly by how successfully their objectives and achievements improve society; (d) the critical problems confronting the African universities are finance, colonial origin, attachment to metropolitan models and standards, training of staff in overseas institutions, brain drain, and government interference; and (e) mutual trust and understanding of role-expectation between African governments and universities is required for universities to fulfill their developmental role in African societies.
The Role of History in Kenneth Roberts' Novels: The purpose of this thesis is to evaluate Kenneth Roberts' transmutation of American history into living literature. This examination will cover the following novels: Arundel (1929), The Lively Lady (1931), Rabble in Arms (1933), Captain Caution (1934), Northwest Passage (1937), Oliver Wiswell (1940), and Lydia Bailey (1947).
The Role of Illusion in the Making of the Versailles Treaty (1919): This investigation is concerned with the role played by the illusions of security, Bolshevism, and American innocence in the making of the Versailles Treaty of 1919. The main sources used in this thesis were the U.S. State Department publications The World War and The Paris Peace Conference and Paul Mantoux's Proceedings of the Council of Four. The drafting of the Versailles Treaty is approached chronologically with special emphasis accorded the problems emanating from the questions of Russia and the Rhine. The study concludes that the peacemakers were manipulated by the illusions of security, Bolshevism, and American innocence.
The Role of Implied Texture in Figural Imagery: This study explored how implied texture was used to give meaning to figural imagery. Several questions were answered in proceeding with the creative project: 1. Did implied texture abstract the figurative image? If so, how was content affected? 2. Did implied texture act as an obstruction to content? 3. Did implied texture act as an integral part of content? 4. Did implied texture exist as a separate entity from content?
The Role of Individuation Processes in the Launching of Children into Adulthood: The purpose of this study was to examine the extent to which levels of individuation and separation in adulthood would predict adjustment to the empty nest transition. Two-hundred and twenty-seven adults (M age = 48) who had experienced the empty nest within the last year completed a battery of scales assessing individuation from family of origin, spouse, and children as well as measures of adjustment, role strain, coping, and sex role attitudes. MANOVAS and hierarchical regression analyses suggested that levels of individuation from one's family of origin, spouse, and children differentially affect one's adjustment to, and coping with, the experience of launching of the youngest child from the home. Empty nest parents who are less differentiated from their own parents, from their spouses, and from their children reported a more negative impact of the empty nest in terms of more overall stress and role strain, more negative mood, and less life satisfaction than did empty nest parents who were more differentiated with regard to parents, spouse, and children. Results regarding the impact of individuation on empty nest adjustment regarding sex role attitudes were less clear cut, and may reflect cohort differences in work role opportunities for women and a parallel redefinition of the work role/parent role dichotomy for men. The data also suggest that women and men experience the empty nest transition differently, with women experiencing more distress and negative mood, supporting the notion that women, who define themselves in a context of relationship may experience more distress at a time when significant relationships are in flux. However, additional results which indicated significantly more proactive and adaptive coping strategies for women as compared to men suggest that women can meet the demands of the new definitions of themselves and their relationships in a relatively positive and adaptive way. The results …
The Role of Industrial Arts in Career Education: This study seeks to provide a descriptive analysis of the role of industrial arts in career education. The criteria used as a basis for comparison of industrial arts and career education are (1) clarification of terminology, (2) historical trends in the development of both programs, (3) basic program philosophies, (4) curriculum content, (5) objectives and goals sought by each curriculum, and (6) legislation affecting industrial arts and career education. Career education is more extensive than industrial arts. Industrial arts cannot assume full responsibility for a comprehensive program of career education; however, industrial arts can be involved in activities which will help the student select a meaningful occupation related to industry.
The Role of Information in the Selection Process of a Primary Care Physician: There is a paucity of information about the various factors that influence the selection of primary care physicians. Also, the relative significance of these factors is not known, making it difficult to properly address ways to improve the information flow to patients when they select a primary care physician.
The Role of Information Technology Support Mechanisms in Coordination Management for Virtual Teams: The purpose of this research is to examine virtual team members' use and perceptions of information technology (IT) support mechanisms. The study identifies the IT support mechanisms currently in use and focuses on differences between virtual and non-virtual teams in control and coordination, IT acceptance, and IT adoption.
The Role of Injury-related Injustice Perception in Adjustment to Spinal Cord Injury: an Exploratory Analysis: Research has begun to explore the presence and role of health-related injustice perceptions in samples of individuals who experience chronic pain associated with traumatic injury. Existing studies indicate that higher level of injustice perception is associated with poorer physical and psychosocial outcomes. However, to date, few clinical populations have been addressed. The aim of the current study was to explore injustice perceptions in a sample of individuals who have sustained a spinal cord injury (SCI), as research suggests that such individuals are likely to experience cognitive elements characteristic of injustice perception (e.g., perceptions of irreparable loss, blame, and unfairness). The study explored the relationship between participants’ level of perceived injustice and several variables associated with outcomes following SCI (depression, pain, and disability) at initial admission to a rehabilitation unit and at three months following discharge. The Injustice Experience Questionnaire was used to measure injustice perceptions. IEQ was found to significantly contribute to depression and anger at baseline. IEQ significantly contributed to depression, present pain intensity, and anger at follow-up. The implication of these preliminary findings may be beneficial for development of future interventions, as many individuals in the United States experience the lifelong physical and psychological consequences of SCI at a high personal and public cost.
The Role of Intelligent Mobile Agents in Network Management and Routing: In this research, the application of intelligent mobile agents to the management of distributed network environments is investigated. Intelligent mobile agents are programs which can move about network systems in a deterministic manner in carrying their execution state. These agents can be considered an application of distributed artificial intelligence where the (usually small) agent code is moved to the data and executed locally. The mobile agent paradigm offers potential advantages over many conventional mechanisms which move (often large) data to the code, thereby wasting available network bandwidth. The performance of agents in network routing and knowledge acquisition has been investigated and simulated. A working mobile agent system has also been designed and implemented in JDK 1.2.
The Role of Intercollegiate Athletics in Higher Education as Perceived by College and University Presidents throughout the United States: The purposes of this study were to determine the perceptions of college and university presidents concerning the role of intercollegiate athletics in higher education, to identify the various similarities and differences regarding the role of intercollegiate athletics as perceived by college and university presidents, and to provide useful data for college administrators, faculty, and staff to utilize when implementing new programs of operation or when evaluating existing practices.
The Role of Interface in Crystal Growth, Energy Harvesting and Storage Applications: A flexible nanofibrous PVDF-BaTiO3 composite material is prepared for impact sensing and biomechanical energy harvesting applications. Dielectric polyvinylidene fluoride (PVDF) and barium titanate (BaTiO3)-PVDF nanofibrous composites were made using the electrospinning process based on a design of experiments approach. The ultrasonication process was optimized using a 2k factorial DoE approach to disperse BaTiO3 particles in PVDF solution in DMF. Scanning electron microscopy was used to characterize the microstructure of the fabricated mesh. The FT-IR and Raman analysis were carried out to investigate the crystal structure of the prepared mesh. Surface morphology contribution to the adhesive property of the composite was explained through contact angle measurements. The capacitance of the prepared PVDF- BaTiO3 nanofibrous mesh was a more than 40% increase over the pure PVDF nanofibers. A comparative study of dielectric relaxation, thermodynamics properties and impact analysis of electrospun polyvinylidene fluoride (PVDF) and 3% BaTiO3-PVDF nanofibrous composite are presented. The frequency dependent dielectric properties revealed micro structural features of the composite material. The dielectric relaxation behavior is further supported by complex impedance analysis and Nyquist plots. The temperature dependence of electric modulus shows Arrhenius type behavior. The observed non-Debye dielectric relaxation in electric loss modulus follows a thermally activated process which can be attributed to a small polaron hopping effect. The particle induced crystallization is supported with thermodynamic properties from differential scanning calorimetric (DSC) measurements. The observed increase in piezoelectric response by impact analysis was attributed to the interfacial interaction between PVDF and BaTiO3. The interfacial polarization between PVDF and BaTiO3 was studied using density functional theory calculations and atomic charge density analysis. The results obtained indicates that electrospinning offers a potential way to produce nanofibers with desired crystalline nature which was not observed in molded samples. In addition, BaTiO3 can be used to increase the capacitance, desired surface characteristics of …
Role of α-Keto Acids In Cyanide Detoxification and Assimilation by Pseudomonas Bacteria: Cyanide was rapidly removed when added to culture supernatants of seven different Pseudomonas. The ability to remove cyanide was correlated with the accumulation of α-keto acids (pyruvate and α-ketoglutarate). These compounds react with cyanide forming less toxic cyanohydrins, thus conferring a mechanism for bacterial cyanide tolerance. When added to growth media the α-keto acids were shown also to serve as effective cyanide antagonists. While all bacteria tested accumulated α-keto acids, only those capable of utilizing cyanide as a nutritional nitrogen source were able to metabolize cyanohydrins. In P. fluorescens NCIMB 11764, the same enzyme (cyanide oxygenase) shown previously to be involved in cyanide metabolism appears responsible for cyanohydrin transformation. Keto acid excretion is believed to represent a new mechanism of bacterial cyanide detoxification with further enzymatic metabolism of the cyanohydrins helping to explain how cyanide can satisfy the nitrogen requirement in cyanide-utilizing bacteria.
The Role of Knowledge and Attitude in Residential Irrigation Efficiency: Residential irrigation efficiency is a long-term concern for any community that faces water supply stress. When ability to raise water prices is constrained, public education and conservation programs can produce reduced water usage. Understanding the factors behind residential irrigation efficiency allows the design of more effective conservation campaigns. Combining site-specific water budgets with usage data for four hundred homes in North Texas enables quantifying efficient irrigation behavior. A survey of homeowners tests for the presence of conservation-positive attitudes and the knowledge required to implement those attitudes. The influence of neighbors’ watering habits is investigated using spatial clustering tools. Findings are analyzed in the context of an attitude, knowledge, and habit model of conservation behavior. The presence of automatic irrigation systems, small irrigated areas, and having knowledge of the amount that one waters one’s lawn are found to contribute to more intensive irrigation. Mixed evidence for small-scale clustering in irrigation intensity is presented.
The Role of Learning in Emergency Physicians' Process of Changing Practice Behavior: The sequence of events leading to the implementation of a change in emergency physicians' practice and the learning activities and processes undertaken are examined and described in this study. A qualitative case study design was utilized and semi-structured interviews were employed as the primary means of data collection. Thirty emergency physicians were interviewed in face-to-face or telephone interviews. One change that required learning was selected per physician for an in-depth interview. The following factors were examined: motivation to change a practice behavior, time to implementation of changes, source of awareness, barriers to change, use of learning resources, stages in the change process, and method of learning.
The Role of Learning in Visual Field Asymmetries: This paper examines visual field asymmetries and their relationship with learning through a study of three groups of 309 people. Richard Herrington discusses the results of subjects performing two visual half-field advantage reaction time tasks, a bar graph task and a word task, as well as both tasks, with extended practice.
The Role of Library Science Departments of Teachers Colleges and Universities in Continuing Professional Education for Librarians in Thailand: This study was designed to investigate the current practice of continuing professional education in the library science departments of teachers colleges and universities in Thailand and the role of the library science department in continuing professional education for librarians. In order to accomplish this task, two questionnaires were developed and administered to 236 chairpersons and library school faculty of 31 tecahers colleges and 9 government universities. Of the returned questionnaires, 72.88% were usable. Data were analyzed using percentage and a contingency chi-square test. The major conclusion of the study was that while the library science departments of teachers college and universities in Thailand provide to some extent, all 20 continuing education items of the Association for Library and Information Science Education model, only two were identified as being provided by more than a majority of institutions.
The Role of Local Law Enforcement Agencies in Dealing with Juvenile Delinquency: This thesis discusses the history of law enforcement and the role of local law enforcement agencies dealing with juveniles and juvenile delinquency.
The Role of Male Fashion in Protests against the Majority Culture: An Exploratory Study: Throughout history, the Black Diaspora has used fashion as a form of protest. The element of fashion is often overlooked when considering the history and struggle for Black equality, because it is less tangible or definable in terms of its influence and effect, but it is still important because Black males resist the dominant culture via dress by dressing in military uniforms, creating their own style, and using different colors in their dress. Studying the Black struggle in American history during specific periods is one way to better understand opposition to the majority culture through fashion. We should also consider the mood of a social system when examining the dress of a particular group during conflicts. Hence, the purpose of this study is to investigate the role of fashion as a protest tool against the majority culture, and the social mood that affects the fashion choices of Black males. The study focuses on Black fashion from 1910 to 2015. Text data were collected and analyzed from articles published in The Crisis magazine, and men's fashion was specially examined. Additionally, images were studied via visual ethnography and images were coded based on color choice, fit, and accessories. For conducting sentiment analysis, lexicons were used, and the text was examined for negative sentiment. The overall negative sentiment of the document was obtained. Graphical analyses are included to present the findings. The findings, conclusions, limitations, and future research are discussed.
The Role of Maternal Health Literacy within Mother-Preterm Infant Attachment: A Meta-Analysis of Maternal Sensitivity Interventions: The present study systematically reviewed and statistically summarized the current body of literature on the relationship between maternal health literacy and maternal sensitivity, and the effect of these two variables on mothers' care and decision making on distal attachment outcomes. In so doing, a systematic review of the extant peer-reviewed, published literature examining the effectiveness of interventions in effort to improve health literacy and maternal sensitivity, with a focus on increasing the quality of mother-preterm infant attachment outcomes, was undergone. This was followed by four multilevel random effects meta-analyses. Results indicated that mothers who participated in health literacy (maternal sensitivity) interventions had, on average, higher attachment quality, in comparison to those who did not participate. Additionally, maternal age was found to be a statistically significant predictor of the overall average effect size. This suggests that maternal health literacy may be a yet unexplored correlate of mother-preterm infant attachment outcomes.

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