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Measurement Of The Location Of A Particle In Three Dimensions Using Mie Scattering Theory And Wave Optics: Application To Flow In A Microscopic Field Of View, Kamal Kanti Das

Graduate Theses and Dissertations

No abstract provided.

The Competing Doctrines Of Privacy And Free Speech Take Center Stage After Princess Diana's Death, Maria Sgurea

NYLS Journal of Human Rights

No abstract provided.

The Pursuit Of Isotopic And Molecular Fire Tracers In The Polar Atmosphere And Cryosphere, L A. Currie, Jack E. Dibb, G A. Klouda, B A. Benner Jr., J M. Conny, S R. Biegalski, D B. Klinedinst, D R. Cahoon, N C. Hsu

Earth Sciences

We present an overview of recent multidisciplinary, multi-institutional efforts to identify and date major sources of combustion aerosol in the current and paleoatmospheres. The work was stimulated, in part, by an atmospheric particle 'sample of opportunity' collected at Summit, Greenland in August 1994, that bore the 14C imprint of biomass burning. During the summer field seasons of 1995 and 1996, we collected air filter, surface snow and snowpit samples to investigate chemical and isotopic evidence of combustion particles that had been transported from distant fires. Among the chemical tracers employed for source identification are organic acids, potassium and ammonium ions, …

Book Review - Birds In Iowa, Peter Wickham

Journal of the Iowa Academy of Science: JIAS

Here is a book that those who are interested in birds and their distribution in Iowa will absolutely have to possess. This volume is the successor to the book Iowa Birds, which was written by the above authors together with three others and published in 1984. It brings our understanding to the number of species of birds and their relative abundance in Iowa up-to-date. Although only twelve years elapsed between the publication of the previous volume and this one, the activity of those interested in identifying birds increased enormously during those years. In addition, their ability to identify and find …

A Literature Review And Survey Of The Status Of Iowa's Terrestrial Flora, Deborah Q. Lewis

Journal of the Iowa Academy of Science: JIAS

A survey of Iowa's floristic literature and herbarium resources indicates that while there is not uniform coverage of plant groups and regions, a great deal is known about the Iowa flora. Taxonomic and floristic studies are ongoing, despite evidence of a decreased number of researchers with expertise and interest in Iowa's flora and changing emphases in academic research. Current knowledge is sufficient for the production of an Iowa Flora, and an Iowa Flora committee to initiate this project is proposed.

Iowa's Declining Flora And Fauna: A Review Of Changes Since 1980 And An Outlook For The Future, Neil P. Bernstein

Journal of the Iowa Academy of Science: JIAS

The status of Iowa's biodiversity was first summarized at a 1980 Iowa Academy of Science (IAS) symposium that was published in The Proceedings of the Iowa Academy of Science (Vol. 88, No. 1) in 1981. The 1980 symposium was updated in a recent IAS symposium, and the proceedings from this symposium are published, for the most part, in volume 105 of this journal. Most of the authors noted some positive trends, but, overall, species declines and habitat destruction remained a concern.

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Safety Issues And Iowa Science Teachers, Jack A. Gerlovich, Ed Wilson, Rahul Parsa

Journal of the Iowa Academy of Science: JIAS

The National Science Education Standards are providing an excellent blue print for improving science teaching for all students. However, the Standards are placing serious demands on teachers attempts to make science activities inquiry-based, real-life, open-ended, and directly applicable to today's students. This situation is further aggravated when teachers do not know essential science safety information from both federal and state governing agencies, as well as professional organizations. With proper training and tools, however, this problem can be positively addressed.

Lack Of Genetic Variation In Cytochrome Bin A Population Of Smooth Softshell Turtles, David W. Weisrock, Tamara S. Haselkorn, Fredric J. Janzen

Journal of the Iowa Academy of Science: JIAS

An important issue in intraspecific molecular phylogenetic studies concerns distribution of genetic variation within and among populations and, hence, within-population sample sizes used in analyses. To address this sampling issue, we sequenced a 795 base pair (bp) segment of the mitochondrial cytochrome b gene from 19 unrelated individuals from a Louisiana population of the smooth softshell turtle (Apalone mutica LeSueur). We found a complete lack of within-population variation in this large segment of mtDNA. This result supports the use of minimal within-population sample sizes in intraspecific molecular phylogenetic studies of Apalone using cytochrome b.

An Architecture For Emotion, T. Mccauley, S. Franklin

CCRG Papers

No abstract provided.

Literacies Without Judgment: Composing A (Con)Text For Cultural Healing In Northeast Brazil, Francisco Silva Cavalcante Jr.

Doctoral Dissertations

In this study the researcher describes and interprets the experiences with Projeto (Con)texto, a research group created in Northeast Brazil composed of eleven people with different levels of formal schooling, social classes and ages varying from 14 to 50 years old. The researcher explores the dynamics of the Brazilian relational universe and its impact on people's lives, the multiple forms of letramento (literacies) used by people in a certain cultural context to construe and convey meaning, and the process of strengthening of one's self to deal with cultural conflicts through cultural healing.

The researcher gathered descriptive data during one year …

Transactional Bond In The Novels Of Charles Brockden Brown, Gretchen Elspeth Digeronimo

Doctoral Dissertations

The six novels and various other fiction pieces Charles Brockden Brown wrote between 1799 and 1801 coherently demonstrate the operation and effect of literary and artistic representation in early Republican America.

In original close readings of Arthur Mervyn, Edgar Huntly, Ormond, and several other works, this dissertation identifies transactional bond and describes how Brown charted the establishment of the public and private individual self through transactional bond in three specific arenas: relationships between the developing self and written, visual, or reported representation; relationships between master/mentors and apprentices; relationships among women.

Bonds that begin, operate, and dissolve between male characters are …

Fluid-Structure Interaction In Taylor-Couette Flow, Martin Horst Willi Kempf

Doctoral Dissertations

The linear stability of a viscous fluid between two concentric, rotating cylinders is considered. The inner cylinder is a rigid boundary and the outer cylinder has an elastic layer exposed to the fluid. The subject is motivated by flow between two adjoining rollers in a printing press. The governing equations of the fluid layer are the incompressible Navier-Stokes equations, and the governing equations of the elastic layer are Navier's equations. A narrow gap, neutral stability, and axisymmetric disturbances are assumed. The solution involves a novel technique for treating two layer stability problems, where an exact solution in the elastic layer …

Alternative Removal Methodologies For Environmental Waters, Shannon Patrick Hogan

Doctoral Dissertations

The Environmental Protection Agency (EPA) continues to establish criteria for the reduction of pathogens in environmental waters used for drinking water. The EPA also states criteria on the amount of chlorine by-products allowed in drinking water. Alternative removal methods that are used in conjunction with chlorine are needed to assure safe drinking water.

The Surface Water Treatment Rule (SWTR) states that a 99.99% reduction of viruses and a 99.9% reduction in Giardia lamblia cysts needs to be achieved by a treatment facility that uses surface water for the production of drinking water. The SWTR also states Maximum Contaminant Levels (MCL) …

Music And The General Classroom: Literacy In A New Key, F Dan Seger

Doctoral Dissertations

After a personal description of the traditional role of music education and its relationship to the overall curriculum of an American elementary school, this dissertation asks: What do grade 4/5 students do when their classroom and music teachers integrate music more deliberately into classroom life? Set in a classroom in a small New England town, the dissertation describes how a collaboration between a classroom teacher and a music teacher brought the music curriculum into the daily lives of students in a school where scheduled music class occurred only once per week.

Viewing music as a valid means to represent thought …

Factors That Influence The Decision Regarding Hormone Replacement Therapy In Postmenopausal Women, Ruth A Rogers Reilly

Doctoral Dissertations

Cardiovascular disease is the leading cause of death in women in the United States today. Prior to menopause women have lower rates of heart disease than men; however, after menopause a woman's risk for heart disease rises dramatically. This is thought to be due the ovaries' decreased production of estradiol, but the mechanisms for this effect have not been fully elucidated. The need exists to investigate the impact of healthy lifestyles on attenuating the risk of cardiovascular disease in women as they age.

The majority of research on hormone replacement therapy (HRT) has focused on the biomedical model suggesting that …

Ice Core Glaciochemical Records Of Late Holocene Climatic Variability In West Antarctica, Karl Jacob Kreutz

Doctoral Dissertations

The complex atmospheric and glaciological dynamics of West Antarctica make this region of particular interest in addressing the continent's cause and effect relationship in the global climate system, and for evaluating future global change scenarios. Ice core records from this region provide the resolution necessary to both improve our understanding of modern regional climate variability, and to reconstruct past changes in a number of climate components.

High-resolution (subannual to biannual) snow and ice core samples collected from two regions of West Antarctica, Siple Dome and Marie Byrd Land, were analyzed for water soluble major ion content. Examination of detailed surface …

Examining Student Conceptions Of The Nature Of Science From Two Project-Based Classrooms, David M. Moss

Doctoral Dissertations

The purpose of this research was to develop descriptive accounts of precollege students' conceptions of the nature of science from two project-based classrooms, and track those conceptions over the course of an academic year. A model of the nature of science was developed and served as the criterion by which students' beliefs were evaluated. The model distinguishes between two major categories of science, the nature of the scientific enterprise and the nature of scientific knowledge. Five students were selected from each class and interviewed individually for 30-45 minutes each, six times over the year. Data from semi-structured, formal interviewing consisted …

Differentiation And Composition On The Hardy And Bergman Spaces, Neil Portnoy

Doctoral Dissertations

Banach spaces of analytic functions are defined by norming a collection of these functions defined on a set X. Among the most studied are the Hardy and Bergman spaces of analytic functions on the unit disc in the complex plane. This is likely due to the richness of these spaces.

An analytic self-map of the unit disc induces a composition operator on these spaces in the natural way. Beginning with independent papers by E. Nordgren and J. V. Ryff in the 1960's, much work has been done to relate the properties of the composition operator to the characteristics of the …

The Role Of Industrial Innovation In Growth And Convergence Across The United States States, Norman Henry Sedgley Iii.

Doctoral Dissertations

This dissertation is concerned with testing economic growth theory using data from US States. Work on endogenous growth has recently been extended to determine the rate of technological change across economies where the incentive to innovate is linked to economic rewards. These models of endogenous innovation are on the cutting edge of theoretical advances in economic growth.

I extend the endogenous innovation literature to study the consequences of knowledge spillovers and the different industrial concentrations that clearly exist across states. This extension of the theory suggests it is reasonable to expect rates of innovation to differ across states if knowledge …

A Very High Level Logic Synthesis, Norbert Ange Valverde

Doctoral Dissertations

The evolution of Computer Aided Design (CAD) calls for the incorporation of design specifications into a microelectronics system development cycle. This expansion requires the establishment of a new generation of CAD procedures, defined as Very High Level Logic Synthesis (VHLLS). The fundamental characteristics of open-ended VHLLS are: (1) front-end graphical interface; (2) time encapsulation; and (3) automatic translation into a behavioral description. Consequently, the VHLLS paradigm represents an advanced category of CAD-based microelectronics system design, built on a deep usage of expert systems and intelligent methods. Artificial Intelligence (AI) formalisms such as Knowledge Representation System (KRS) are necessary to model …

Fixation And Incubation Effects In Problem-Solving, Marie Theresa Hansberry

Doctoral Dissertations

In four experiments, the effects of fixation and suppression processes in problem solving ability were investigated. Previous research has shown that efficient suppression mechanisms are integral to verbal ability (e.g., Gernsbacher & Faust, 1991; Gernsbacher, Varner, & Faust, 1990; Hartman & Hasher, 1991). The present set of experiments demonstrated that such a mechanism is also a component of problem solving ability. The efficiency with which participants were able to suppress inappropriate meanings of ambiguous words was used as a measure of suppression skill. Experiment I established that participants who were able to make use of previously-presented information to solve difficult …

Money, Output And Real Wages In A New Keynesian Framework With Heterogeneous Labor And Monopsonistic Firms, Robert J. Martel

Doctoral Dissertations

Representative agent models do not match up well with three stylized facts of the business cycle: a money-output connection, countercyclical markups, and acyclical real wages. This thesis investigates whether a New Keynesian model which departs from the representative agent assumptions and models heterogeneity and imperfect competition in the labor market is more consistent with these stylized facts.

One possible explanation of countercyclical markups and acyclical real wages is that labor markets are monopsonistic and monopsony power is weaker during expansions than in recessions, This would require that the elasticity of labor supply be procyclical. This is not possible if worker …

The Case For Religious Values In Judicial Decision-Making, Wendell L. Griffen

Marquette Law Review

No abstract provided.

Theoretical And Practical Considerations For Enhancing Power To Improve Athletic Performance, Douglas A. Herron

Physical Therapy Scholarly Projects

Power is of extreme interest to coaches and athletes alike because of the crucial role it plays in athletic performance. This independent study examines the essence of power and attempts to describe its components in detail as they relate to various sporting events and explores theoretical and practical considerations for anaerobic power augmentation using mathematical arguments as a basis for the suggested changes to traditional training protocol.

Specifically, this study suggests changes to traditional resistance training protocol during the power phase of a mesocycie by decreasing the percentage of the maximal lift from 90% through 95% to 60% through 85%. …

A Review Of The Sacroiliac Joint, Michael Schielke

Physical Therapy Scholarly Projects

The purpose of this review is to explore the literature regarding sacroiliac joint motion in an attempt to ascertain the extent of movement possible, to describe relevant sacroiliac joint anatomy and joint function, and to review assessment and treatment techniques used with sacroiliac joint dysfunction. Sacroiliac joint motion and function have been the subject of much controversy among clinicians who treat low back pain. Because of its location, orientation, and morphology, the sacroiliac joint is a difficult joint to visualize clearly with radiographic procedures, which increases the problems in diagnosis of sacroiliac joint pathology. Although the arthrokinematics of the sacroiliac …

Calculation Of The Reaction Cross-Section For Proton-Nucleus Using Recently Optical Potential, M. M. Osman

Turkish Journal of Physics

The eikonal approximation is used to calculate the reaction cross-section for proton scattering from different nuclei. The imaginary proton - nucleus optical potential is derived from relativistic mean field theory approach. We found a fair agreement with experimental data.

Random Amplified Polymorphic Dna Used To Identify Genetic Variation In Ecotypes Of The European Corn Borer (Lepidoptera: Pyralidae), Saowaluck Pornkulwat, Steven R. Skoda, Gustave D. Thomas, John E. Foster

Department of Entomology: Faculty Publications

The European corn borer, Ostrinia nubilalis (Hubner), has 3 morphologically indistinguishable voltinism ecotypes. Random amplified polymorphic DNA-polymerase chain reaction (RAPD-PCR) was used to discriminate ecotypes of the European corn borer. Genomic DNA samples from the European corn borer were screened with a total of 120 random primers. Ten of these primers yielded 21 clear and reproducible RAPD markers after agarose gel electrophoresis. Dendrograms constructed using the Nei and Li distance matrix of the phylogenetic relationships, among and within ecotypes, of the European corn borer showed the multivoltine ecotype to be genetically separated from univoltine and bivoltine ecotypes. The dendrogram of …

Using Parametric Statistical Models To Estimate Mortality Structure: The Case Of Taiwan, Shih-Chieh Chang

Journal of Actuarial Practice (1993–2006)

A mixture parametric model is used to analyze the changing pattern of Taiwanese mortality from 1926 to 1991. Three different age ranges are modeled as mixtures of extreme value distributions, namely the Weibull, inverse Weibull, and Gompertz distributions. The results show a significant improvement of mortality over the years.

Biophysical Studies Of The Spectrin Sequence Motif, Denise M. Lusitani

Dissertations

No abstract provided.