Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

1997

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 8701 - 8721 of 8721

Full-Text Articles in Entire DC Network

Four-Wave Mixing And Optical Phase Conjugation In Vertical Cavity Surface Emitting Devices, Gregory J. Vansuch Jan 1997

Four-Wave Mixing And Optical Phase Conjugation In Vertical Cavity Surface Emitting Devices, Gregory J. Vansuch

Theses and Dissertations

Four-wave mixing (FWM), a nonlinear optical process, was investigated in resonant cavity light emitting diodes (RCLEDs) and vertical cavity surface emitting lasers (VCSELs) below lasing threshold. These semiconductor photonic devices consisted of an optical gain region of quantum wells sandwiched between two distributed Bragg reflector (DBR) mirrors. Pump and probe lasers were injected into the devices to generate FWM. The dependence of FWM on bias current, pump laser power, and spectral and spatial separation between pump and probe lasers was investigated experimentally. A computer model of FWM based on the wave and carrier density equations was developed and agreed well …

Go to article

Effects Of Pattern Of Fsh On Follicular Growth And Ovulation And Relationships Between Histamine And Plasminogen Activator In The Ovulatory Process Of Gilts., David Jeffrey Wright Jan 1997

Effects Of Pattern Of Fsh On Follicular Growth And Ovulation And Relationships Between Histamine And Plasminogen Activator In The Ovulatory Process Of Gilts., David Jeffrey Wright

Graduate Theses, Dissertations, and Problem Reports (ETD)

Whether growth of large, ovulatory follicles differed after different modes of stimulation with FSH and whether growth was enhanced by exogenous LH were examined in prepubertal gilts. Gilts received either a single injection of 2 mg FSH at 0 h (SUPER-OV; AUSA International, Inc., Tyler, TX) or injections every 8 h (18 mg over 64 h) and either 10 {dollar}\\mu{dollar}g porcine LH (USDA-pLH-B2; Animal Hormone Program, Beltsville, MD.) with the first injection of FSH (n = 4 and 3, respectively) or no LH (n = 3 each). Number of follicles {dollar}\\geq{dollar}7 mm in diameter and ovarian weight did not differ …

Go to article

Smu Research, Volume 4, Office Of Public Affairs Jan 1997

Smu Research, Volume 4, Office Of Public Affairs

SMU Research Magazine

No abstract provided.

Go to article

Demythifying Multicultural Education: Social Semiotics As A Tool Of Critical Pedagogy, Stephanie Urso Spina Jan 1997

Demythifying Multicultural Education: Social Semiotics As A Tool Of Critical Pedagogy, Stephanie Urso Spina

Publications and Research

This article discusses the assumptions and curricular implications of a social semiotic approach to education. Semiotics refers to the meaning we make with language as well as other objects. events, and actions. Social semiotics emphasizes the social, cultural, historic, and political contexts that shape that meaning. A social semiotic approach to education can help teachers and teacher educators to deconstruct the reproduction of class, politicize the ideology of colonialism, and overcome the inequities they engender. By providing a way to challenge selectively reproduced cultural politics, social semiotics provides a way to reconstruct and democratize schools and society.

Go to article

Crime And The Nation: Prison Reform And Popular Fiction In Philadelphia, 1786-1800., Peter Thomas Okun Jan 1997

Crime And The Nation: Prison Reform And Popular Fiction In Philadelphia, 1786-1800., Peter Thomas Okun

Graduate Theses, Dissertations, and Problem Reports (ETD)

The prison reformers and fiction writers of post-Revolutionary Philadelphia wrote prodigiously about crime and punishment. In a correlative study, I explore juridical topoi in reformist and fictive texts familiar to republican Philadelphians. My analysis assumes a public sphere of writers and readers: while late eighteenth-century prison reforms and fictions came out of separate signifying systems, there was considerable promiscuity between them. I group areas of overlap around cultural concerns (science, murder, sex) and representational "spaces" (home, prison, nation). In either discourse, crime and punishment were useful to a post-Revolutionary aesthetic of nationalism. The scientific rhetoric of penitentiary punishment targeted the …

Go to article

Portrayal Of Teacher Image: An Exploration Of Perceptions And Behaviors Of Healthcare Educators., Carole Shockey Thomassy Jan 1997

Portrayal Of Teacher Image: An Exploration Of Perceptions And Behaviors Of Healthcare Educators., Carole Shockey Thomassy

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study was to explore and describe the image healthcare educators believed they portrayed as a teacher and the behaviors they believed actualized the image. A pilot study was completed to evaluate the data collection techniques. A purposive sample of healthcare educators participated in one-to-one semi-standardized interviews and was observed in a teaching situation for demonstration of self-identified behaviors they believed actualized their image. Thematic analysis of the data resulted in five categories: coming to the role, perceptions held by subjects regarding image, people who may have influenced the image, behaviors that actualized the image and self-perceived …

Go to article

The Effect Of Estrogen On The Transcriptional Regulation And The Chromatin Remodeling Of The Very Low Density Apolipoprotein Ii Gene., Elizabeth Mambo Jan 1997

The Effect Of Estrogen On The Transcriptional Regulation And The Chromatin Remodeling Of The Very Low Density Apolipoprotein Ii Gene., Elizabeth Mambo

Graduate Theses, Dissertations, and Problem Reports (ETD)

The chicken very low density apolipoprotein II (apoVLDLII) gene encodes an egg yolk protein that is synthesized in the liver in response to estrogen. Regulation of this gene is mediated by the estrogen receptor via two estrogen response elements (EREs) located in the promoter. Following the administration of estrogen, there is a four hour lag period prior to the detection of apoVLDLII mRNA. To examine the events that occur during this lag period, in vivo footprinting and run-on transcription assays were performed. Time courses of the transcription of the apoVLDLII gene were done using the transcription run-on assay. The antisense …

Go to article

Recruiting Retirees For Economic Development: A Public Policy Perspective., Michele Louise Kreidler Jan 1997

Recruiting Retirees For Economic Development: A Public Policy Perspective., Michele Louise Kreidler

Graduate Theses, Dissertations, and Problem Reports (ETD)

This paper examines retiree recruitment as a strategy in state economic development policy. The study employs a theoretical framework of policy adoption and lesson-drawing to answer the questions (1) why would a state adopt the policy of retiree recruitment and (2) how is the policy adopted. Three states in different stages of retiree recruitment policy adoption were selected as case studies. Results show that different strategies in policy adoption were operating in each case study state. In each state development of retiree recruitment was in response to a need to diversify the state economy. The idea of retiree recruitment originated …

Go to article

1996-1997 Nsu Knights Baseball Media Guide, Nova Southeastern University Jan 1997

1996-1997 Nsu Knights Baseball Media Guide, Nova Southeastern University

NSU Athletics Sports Programs and Media Guides

No abstract provided.

Go to article

Physical, Chemical, And Microbial Analysis Of Domestic Wastewater Treated By Small Constructed Wetlands Designed For Individual Households., Keith R. Hench Jan 1997

Physical, Chemical, And Microbial Analysis Of Domestic Wastewater Treated By Small Constructed Wetlands Designed For Individual Households., Keith R. Hench

Graduate Theses, Dissertations, and Problem Reports (ETD)

Many small communities located in rural areas of the United States lack adequate domestic wastewater treatment plants. Constructed wetlands are being promoted as low-cost, low-maintenance systems for treatment of domestic wastewater in areas where standard septic tanks fail. In order to evaluate the efficacy of small constructed wetlands, 20 small-scale wetlands mesocosms (100 gal each) containing five plant treatments (no plants/control, Typha, Scirpus, and Juncus monocultures, and all three species combined) were planted into pea gravel at either 18 or 24 inches in depth. Each mesocosm received 5 gal/day of primary-treated domestic sewage. Mesocosms were monitored on a monthly basis …

Go to article

The Role Of Endothelin In Hexachloro-1,3-Butadiene-Induced Acute Renal Failure., Lara Kristen Dowland Jan 1997

The Role Of Endothelin In Hexachloro-1,3-Butadiene-Induced Acute Renal Failure., Lara Kristen Dowland

Graduate Theses, Dissertations, and Problem Reports (ETD)

The objective of this research was to determine if endothelin is a mediator of hexachloro-1,3-butadiene (HCBD)-induced acute renal failure. The nephrotoxicity associated with HCBD is acute tubular necrosis (ATN). HCBD-induced ATN is characterized by a decrease in renal blood flow (RBF), mediating a decline in the glomerular filtration rate (GFR), polyuria, glucosuria, proteinuria and natriuresis. These effects on the kidney are mimicked by the endogenous peptide endothelin. Endothelin is produced by many different cell types and is the most potent endogenous vasoconstrictor peptide identified to date. The renal vasculature is particularly sensitive to the vasoconstrictive action of endothelin. Endothelin causes …

Go to article

The Development Of A Representative Policy For Student Use Of Campus Computer Networks At Research I And Ii Institutions., Jeffrey Scott Hale Jan 1997

The Development Of A Representative Policy For Student Use Of Campus Computer Networks At Research I And Ii Institutions., Jeffrey Scott Hale

Graduate Theses, Dissertations, and Problem Reports (ETD)

The campus computer network is available to students on nearly every university campus. Needing to know how to interact electronically as well as the potential to reach libraries throughout the world is well chronicled and is becoming a matter of students' common knowledge. Problems that can arise on a campus range from new ways to cheat to new methods of threatening to do harm. The purpose of this study then, was to develop a representative policy for student use of campus computer networks at Research I and II institutions. Separate surveys were sent to the chief student affairs and chief …

Go to article

Isolation And Characterization Of The 22 Kd Subunit Of Gluconate Dehydrogenase Derived From Pseudomonas Aeruginosa Pao1., John David Gordon Jan 1997

Isolation And Characterization Of The 22 Kd Subunit Of Gluconate Dehydrogenase Derived From Pseudomonas Aeruginosa Pao1., John David Gordon

Graduate Theses, Dissertations, and Problem Reports (ETD)

Approximately 95-99% of soil phosphorous is unavailable to plants, with {dollar}\\sim{dollar}90% of phosphate fertilizers also being rendered unavailable upon application. 2-Ketogluconate (2KG) has been shown to solubilize insoluble phosphates in vitro. If plants themselves could solubilize the insoluble phosphate in the soil, this would greatly reduce the need for phosphate fertilizers. Two greenhouse experiments were conducted to examine in vitro and in situ solubilization of insoluble phosphates (calcium phosphate, RP, and iron phosphate, IP) with increasing concentrations of 2KG, as seen through plant (Lycopersicon esculentum) growth and Pi uptake. In the first experiment (in situ solubilization), water alone showed a …

Go to article

The Relationship Between Brain Hemispheric Characteristics And Leadership Style Of School Superintendents In West Virginia., Theodora Sinicrope Farmer Jan 1997

The Relationship Between Brain Hemispheric Characteristics And Leadership Style Of School Superintendents In West Virginia., Theodora Sinicrope Farmer

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study was designed to examine the relationship between the self-perceived preferred brain hemispheric processing of West Virginia public school superintendents and their self-perceived leadership styles. Respondents completed the Hermann Brain Dominance Profile, the Leader Behavior Description Questionnaire, and a demographic sheet. Data were analyzed using the General Linear Model of the Statistical Analysis System (SAS). Two hypotheses guided the study. West Virginia public school superintendents who perceive themselves as preferring predominantly left hemispheric processing will have significantly higher Initiating Structure scores than superintendents who perceive themselves as predominantly right hemispheric. West Virginia public school superintendents who perceive themselves as …

Go to article

Music By Judson Bracey., Judson Frank Bracey Jan 1997

Music By Judson Bracey., Judson Frank Bracey

Graduate Theses, Dissertations, and Problem Reports (ETD)

This portfolio is a two-volume set of original music compositions. The works contained herein represent a variety of media and genres, including chamber and large-ensemble pieces. The works are typically tonal, with the harmony usually combining tertian and quartal chords. In the Beginning is the major work of the portfolio. A six-movement cantata for mixed chorus and orchestra, its texts are adaptations of passages (primarily) from Genesis and the Gospel of John, chosen because of their parallels of language and meaning. In each of the movements (except the fourth, which is for orchestra alone), texts from two Biblical sources are …

Go to article

Job Satisfaction In Newspaper Ad Departments, James Pokrywczynski, John Crowley Jan 1997

Job Satisfaction In Newspaper Ad Departments, James Pokrywczynski, John Crowley

College of Communication Faculty Research and Publications

The results of a study indicate that newspaper advertising employees are not as dissatisfied as their editorial counterparts but that they are the least satisfied of any group in the advertising industry.

Go to article

Optical Studies Of Ge Islanding On Si(111), P. D. Persans, P. W. Deelman, K. L. Stokes, L. J. Schowalter, A. Byrne, T. Thundat Jan 1997

Optical Studies Of Ge Islanding On Si(111), P. D. Persans, P. W. Deelman, K. L. Stokes, L. J. Schowalter, A. Byrne, T. Thundat

Physics Faculty Publications

We report an experimental study of the optical properties of island layers resulting from molecular beam epitaxial deposition of Ge on Si(111) substrates. The combination of electroreflectance spectroscopy of the E1 transition and Raman scattering allows us to separately determine the strain and composition of the islands. For deposition at 500 °C a deposited layer of 1.36 nm of Ge assembles into 80 nm diameter islands 11 nm thick. The average Si impurity content in the islands is 2.5% while the average in-plane strain is 0.5%. Both strain and Si impurity content in islands decrease with increasing Ge deposition

Go to article

New Orleans Music: A Reappraisal, Connie Zeanah Atkinson Jan 1997

New Orleans Music: A Reappraisal, Connie Zeanah Atkinson

Midlo Center Publications

No abstract provided.

Go to article

Review Of "From Grunts To Gigabytes: Communication And Society", William C. Welburn Jan 1997

Review Of "From Grunts To Gigabytes: Communication And Society", William C. Welburn

Office of the Provost Research and Publications

No abstract provided.

Go to article

Advertising Beliefs And Attitudes: Are Students And General Consumers Indeed Different?, Srinivas Durvasula, Subhash Mehta, J. Craig Andrews, Steven Lysonski Jan 1997

Advertising Beliefs And Attitudes: Are Students And General Consumers Indeed Different?, Srinivas Durvasula, Subhash Mehta, J. Craig Andrews, Steven Lysonski

Marketing Faculty Research and Publications

Studies of advertising beliefs and attitudes are crucial because these measures are shown to affect brand attitudes and purchase intentions. Previous studies in this area used either student or general consumers samples; no comparisons were made between the two groups. Therefore, it is not known whether and to what extent responses of student samples are likely to differ from those of general consumers. Differences would indicate that the two segments view advertising dissimilarly. However, by applying covariance structure analysis on a sample of students and a sample of general consumers from India, our study found no significant differences between them …

Go to article

Immune Responses To Final Exams In Healthy And Asthmatic Adolescents, Duck-Hee Kang, Christopher L. Coe, Donna O. Mccarthy, William B. Ershler Jan 1997

Immune Responses To Final Exams In Healthy And Asthmatic Adolescents, Duck-Hee Kang, Christopher L. Coe, Donna O. Mccarthy, William B. Ershler

College of Nursing Faculty Research and Publications

Immune responses to an academic stressor were examined in healthy and asthmatic adolescents with regard to their illness symptom reports. Eighty-seven high school students completed a health diary for 2 weeks and provided three blood samples during midsemester, final-exam, and postexam periods. During exam week, all students showed significant immunological alterations from baseline: Natural killer cell activity was significantly lower, whereas lymphocyte proliferation and neutrophil superoxide release were significantly higher. These immune changes tended to return toward baseline during the postexam period, but the enhanced neutrophil reactivity continued to rise. Overall, immunological responses were similar between asthmatic subjects and controls. …

Go to article

First Prev