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Transforming Defense An Era Of Peace And Prosperity, Conrad C. Crane Dr.

Books, Monographs & Collaborative Studies

The ideas and issues presented in this collection of papers from the Twelfth Annual Strategy Conference conducted by the U.S. Army War College in April 2001 will educate and inform anyone interested in the past and future course of American defense reform. Though conference attendees had many differing opinions about the barriers to defense transformation and how to overcome them, a broad consensus formed that some change is essential to meet future security requirements. They observed at the time that it is ironic that the peace which creates the prosperity and wealth to fund transformation and permits a window of …

Dit Independent , 1st.-31st. Of December, 2001, Dit:Students Union

DIT Student Union

No abstract provided.

Effect Of Rare Locally Ordered Regions On A Disordered Itinerant Quantum Antiferromagnet With Cubic Anisotropy, Rajesh S. Narayanan, Thomas Vojta

Physics Faculty Research & Creative Works

We study the quantum phase transition of an itinerant antiferromagnet with cubic anisotropy in the presence of quenched disorder, paying particular attention to the locally ordered spatial regions that form in the Griffiths region. We derive an effective action where these rare regions are described in terms of static annealed disorder. A one-loop renormalization-group analysis of the effective action shows that for order-parameter dimensions p<4, the rare regions destroy the conventional critical behavior, and the renormalized disorder flows to infinity. For order-parameter dimensions p>4, the critical behavior is not influenced by the rare regions; it is described by the conventional dirty cubic fixed point. We also discuss the influence of the rare regions on the fluctuation-driven first-order transition …

Factor Substitution And Endogenous Growth, Hing-Man Leung

Research Collection School Of Economics

We argue that the degree of substitutability between skilled and unskilled workers in production increases long-term income growth rate. Growth rate reaches its maximum when such factors are perfect substitutes, but falls to zero when they are perfect complements. This model brings together the diverging relative wage and the human-capital-growth literature. Easier substitution absorbs more workers into the skilled profession, and their training fuels human capital accumulation and growth. Our result implies, among other things, that growth is positively related to between-and within-group inequality.

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Exotic And Invasive Woody Plant Species In Iowa, Donald R. Farrar

Journal of the Iowa Academy of Science: JIAS

Seventy species and hybrids of exotic woody trees, shrubs, and vines have naturalized in Iowa. Nearly half of these species (31) have become invasive pests in parts of the state or have potential do so. Most of the seriously invasive species are spread by bird ingestion of whole fruits. Widespread dispersal by birds hinders eradication efforts and should be considered a trait indicative of potential invasiveness. The economic and ecological values of Iowa forests are seriously compromised by exotic invasive woody species, especially where forests recovering from cropland and pasture are dominated by exotic species. Thus, a simple measure of …

Iowa's Non-Native Graminoids, Thomas R. Rosburg

Journal of the Iowa Academy of Science: JIAS

Iowa's non-native graminoids include 60 species of grasses and one species of bulrush. The exotic grass species comprise a large proportion (about 31%) of the total species richness of grasses in Iowa, which are second only to the Asteraceae in terms of total species. About half of the non-native graminoids (52%) occur sporadically and form sparse, non-invasive populations, while eighteen species (about 30%) are commonly encountered in large populations throughout the state. About 60% are annuals and a large majority (89%) has been introduced from either Europe or Asia. The C3 photosynthetic pathway is prevalent, occurring in approximately two-thirds of …

Invasive Birds In Iowa: Status, Problems, And Threats, James J. Dinsmore

Journal of the Iowa Academy of Science: JIAS

A total of 18 invasive bird species has been introduced into or have expanded their range to include Iowa. These include ten non-North American species, one North American species that has been displaced and now is established in Iowa, and seven native species that have been released to reestablish Iowa populations. Twelve of those are regularly occurring species in Iowa, and they comprise 3.0% (12 of 404) of the species known from Iowa and 5% (10 of 199) of Iowa's nesting avifauna. These percentages are similar to those found in neighboring states. Several more species are likely to become established …

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Characteristics Of Erp Software Maintenance: A Multiple Case Study, Fiona Fui-Hoon Nah, Silvana Faja, Teuta Cata

Research Collection School Of Computing and Information Systems

A multiple case study approach was employed to identify maintenance activities pertaining to enterprise resource planning (ERP) implementation, classify them into maintenance categories, and assess their relative frequency at various stages of the ERP maintenance lifecycle. Five maintenance categories (corrective, adaptive, perfective, preventive, user support) were identified from a review of the literature on software maintenance. A new category pertaining to ‘communication, coordination and knowledge exchange with external parties’ and herein labeled ‘external parties’ is introduced to highlight the supporting role of external parties in ERP maintenance. This category includes reporting problems to vendors and consultants, tracking their progress towards …

Comparison Of Instream Methods For Measuring Hydraulic Conductivity In Sandy Streambeds, Matthew K. Landon, David L. Rus, F. Edwin Harvey

School of Natural Resources: Faculty Publications

Streambed hydraulic conductivity (K) values were determined at seven stream transects in the Platte River Basin in Nebraska using different instream measurement techniques. Values were compared to determine the most appropriate technique(s) for use in sandy streambeds. Values of K determined from field falling- and constant-head permeameter tests analyzed using the Darcy equation decreased as permeameter diameter increased. Seepage meters coupled with hydraulic gradient measurements failed to yield K values in 40% of the trials. Consequently, Darcy permeameter and seepage meter tests were not preferred approaches. In the upper 0.25 m of the streambed, field falling- and constant-head permeameter tests …

Challenges For The New West: Economic Impacts Of Wilderness In Nevada's Rural Counties, Lesley Regina Argo

UNLV Theses, Dissertations, Professional Papers, and Capstones

Public lands designated as part of the National Wilderness Preservation System are removed from multiple-use management for protection of their natural condition. Opponents argue that "locking up" the natural resources on these lands through designation will undermine the rural economies in the west that are dependent upon extractive industries such as mining and logging. Proponents argue that the "Old West" reliance on extractive industries is declining and, in the "New West", wilderness promotes economic development in rural communities by preserving the amenity values that draw population and employment to the region. Characteristics of Nevada's economy, population and land challenge the …

Influence Of Early Lithification On Late Diagenesis Of Microbialities: Insights From Δ 18O Composition Of Upper Cambrian Carbonate Deposits From The Southern Appalachians, B. Glumac

Geosciences: Faculty Publications

This paper documents a difference in isotopic compositions between Upper Cambrian microbial and non-microbial micritic deposits and proposes implications for diagenesis of calcimicrobial deposits. The δ 18O values (-10.98 to -8.71; average -9.88‰ VPDB) of calcimicrite comprising shallow subtidal microbialites from the southern Appalachians are more negative than: (1) the calcimicrite from associated subtidal non-microbial deposits (-8.98 to -7.16; average -7.82), suggesting a different diagenetic history; and (2) estimates of Late Cambrian marine calcite values (-5 to -3 ‰), indicating postdepositional modifications. Early diagenetic calcification of microbial deposits promoted the formation of growth cavities and borings rimmed with marine fibrous …

Integrals Of Periodic Functions, Sean F. Ellermeyer, David G. Robinson

Faculty Articles

Computing integrals of powers of the sine function is a standard exercise in calculus. The authors show that the first integral is representative of the integral of any periodic function.

A New System Of Parallel Isolated Nonthermal Filaments Near The Galactic Center: Evidence For A Local Magnetic Field Gradient, Ted N. La Rosa, Joseph W. Lazio, Nasir E. Kassim

Faculty Articles

We report the discovery of a system of isolated nonthermal filaments approximately 0fdg5 northwest (75 pc in projection) of Sgr A. Unlike other isolated nonthermal filaments which show subfilamentation, braiding of subfilaments, and flaring at their ends, these filaments are simple linear structures and more closely resemble the parallel bundled filaments in the Galactic center radio arc. However, the most unusual feature of these filaments is that the 20/90 cm spectral index uniformly decreases as a function of length, in contrast to all other nonthermal filaments in the Galactic center. This spectral gradient may not be due to simple particle …

Habitat Utilization And Movement Patterns Of Subadult Largemouth Bass (Micropterus Salmoides) In The Ohio River, Elizabeth Marie Hoffman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Ohio River electrofishing surveys identified embayments as preferred macrohabitat of subadult largemouth bass. Catch rates within macrohabitats were low ranging from 0.00--2.73 subadult bass/hour. Embayment electrofishing CPUE was higher than tributary or main channel except in spring, when tributary CPUE was highest.;Core use areas were calculated from biotelemetry data and ranged from 88--59,400 m2, representing 0.02--89.00% of available study location macrohabitat. Subadult bass movement was limited to nursery embayments or tributaries with infrequent movement to nearby main channel areas. Bass preferred a mixed microhabitat consisting of a combination of vegetation and woody debris. This mixed microhabitat was less common in …

Raptor Abundance And Diversity And Red-Shouldered Hawk ( Buteo Lineatus) Habitat Characteristics On Reclaimed Mountaintop Mines In Southern West Virginia, Melissa J. Balcerzak

Graduate Theses, Dissertations, and Problem Reports (ETD)

Raptor abundance and diversity were compared between 4 treatments (grassland, shrub/pole, fragmented forest, and intact forest) over 3 seasons (migration, summer, and winter) on 3 mountaintop/valley fill mines in southern West Virginia. Habitat characteristics of Red-shouldered Hawks (Buteo lineatus) were examined at landscape and microhabitat scales. Forty-eight points were surveyed monthly (Feb. 2000--Jan. 2001) using broadcast calls. I quantified microhabitat characteristics within an 11.3 m radius plot and landscape characteristics within 1000 and 564 m buffer zones at each point. Abundance was highest in grasslands; richness did not differ among treatments. Overall, I detected a shift from a forest to …

Prenatal Stress Alters Fear-Conditioned Behaviors And The Response To Serotonergic Drugs, William C. Griffin Iii

Graduate Theses, Dissertations, and Problem Reports (ETD)

Chronic, inescapable stress during pregnancy (i.e. prenatal stress) modifies the behavior of the adult offspring. Several behaviors were evaluated in adult prenatally stressed (PS) rats, most notably the acoustic startle response and behavioral inhibition (i.e. freezing). PS rats do not differ in baseline peak startle responding, or in the habituation of the peak startle response when compared to the non-prenatally stressed (CON) rats. However, PS rats have greater peak responses and longer latencies to reach the peak response following systemic doses of the 5-HT 1A agonist, 8-OH-DPAT, compared to CON rats. The PS rats had shorter latencies than the CON …

Pharmacological Regulation Of C-Myc Gene Expression In Human Breast Cancer Cells, Zaroui Karlen Melkoumian

Graduate Theses, Dissertations, and Problem Reports (ETD)

Previous studies demonstrated that quinidine causes G1/G0 cell cycle arrest and inhibition of proliferation in MCF-7 human breast cancer cell line (Woodfork, K. et al., 1995). The goal of studies reported here was to understand the molecular mechanisms of c-myc gene regulation by quinidine. C-myc is one of the most common oncogene aberrations in breast cancers (Deming, S. L. et al., 2000). C-myc functions include regulation of cell cycle, proliferation, differentiation, and apoptosis. The results of these studies demonstrated that quinidine causes rapid (within 1 hour) suppression of Myc protein and mRNA levels that precedes the quinidine-induced G1 cell cycle …

Stand Dynamics And Disturbance History Of Five Oak -Dominated Old -Growth Stands In The Unglaciated Appalachian Plateau, James Spencer Rentch

Graduate Theses, Dissertations, and Problem Reports (ETD)

Stand dynamics and disturbance histories of five eastern, oak-dominated old-growth stands were investigated using ecological field sampling techniques, dendrochronologogical methods, and a review of historical resources of original forest composition and patterns of human and natural disturbance. Witness tree tallies from 18th century land surveys show that presettlement forests in the study areas were oak-dominated forests. Quercus alba was, at minimum, twice as abundant as Q. velutina, the second ranked species. Acer saccharum and Fagus grandifolia were among the top ten ranked species at each site; however their importance value was consistently less than one-third the value for Q. alba. …

Women And Physical Culture In Modern Poland, Nameeta Mathur

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation examines the interaction between the various forces of Polish "nationalism" and "feminism" in the construction of women's physical culture in modern Poland from the late nineteenth century until the end of the twentieth century. The basic premise of this work is that unlike most western countries where sportswomen have typically been marginalized in their athletic endeavors, Polish female athletes have earned far greater respect and recognition in the development of their physical culture. On many occasions, women's athleticism in Poland was a source of immense pride and prestige for both the state and society, albeit for varied reasons …

Rates Of Adoption In A University Course Management System, David Russell Feeney

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research focuses on diffusion of an education innovation in a large, traditional University. In March 1999, the Blackboard digital course management system was installed for enterprise-wide availability at Temple University, the 39th largest university in the United States. The web-enabled database of Temple Blackboard logs the adoption date, course ID, and course title for every Blackboard course, unobtrusively, twenty-four hours a day. Temple Blackboard serves as 4 digital approximation of the cumulative recorder pioneered by B. F. Skinner, recording more than 2800 course adoptions across 30 months, in real time. Temple Blackboard course records provide unprecedented quantity and quality …

Fuzzy Logic Cost Estimation Method For High Production Volume Components, Shirley Jean Copen

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this research is to develop fuzzy logic cost models that estimate the cost of a component based on the component's geometric shape, size, material and manufacturing process. The research is focused on components made from high production quantity processes i.e. stamping, injection molding, rolling and extrusion. However, the method may also be used for other types of manufacturing processes. The method is useful to both engineers and cost estimators whenever an estimated cost is desired. Engineers and cost estimators may use the method to obtain the cost of components or products of similar design without a detailed …

Study Of The Rheological Properties Of Nomex Fibrids, Long Han

Graduate Theses, Dissertations, and Problem Reports (ETD)

Paints and caulks typically contain (spherical) fumed silica particulates as viscosity enhancers. A similar viscosity enhancement can be achieved by using aramid fibrids. Aramid fibrids are believed to form microstructures in suspensions because of the "space-filling" nature of their shapes and thus provide a convenient means of introducing desired rheological behavior for various commercial applications.;The flow responses of aramid fibrids dispersed in mixtures of corn syrup and water were determined in dynamic shear, steady shear, low shear capillary, and extensional stretching flows. Yield stress, strong shear thinning, thixotropy, and strong dispersion effects were observed, and these are consistent with observed …

Simulated Annealing Heuristics For The Dynamic Facility Layout Problem, Saravanan Kuppusamy

Graduate Theses, Dissertations, and Problem Reports (ETD)

Today's consumer market demands that manufacturers must be competitive. This requires the efficient operation of manufacturing plants and their ability to quickly respond to changes in product mix and demand. Studies show that material handling cost makes up between 20 and 50 percent of the total operating cost. Therefore, this thesis considers the problem of arranging and rearranging (when there are changes in product mix and demand) manufacturing facilities such that material handling and rearrangement costs are minimized. This problem is called the dynamic facility layout problem. In this thesis, three simulated annealing heuristics are presented for the dynamic facility …

New Catalysts For Syngas Production From Carbon Dioxide And Methane, Mahesh Venkataraman Iyer

Graduate Theses, Dissertations, and Problem Reports (ETD)

The performance of cobalt tungsten carbide material was investigated for CH4/CO2 reforming. The catalyst was found to convert to a very stable, very active, form when heated in CH4/CO 2 at 850°C and 5 atm. Even after 90 hours on stream, CH4 and CO2 rates of 1.3 and 1.25 mmol/min/g respectively are obtained, with CO yields of 76% and H2/CO ratio close to unity. XRD patterns suggest a phase transformation to WC+Co+C. SEM images suggest formation of encapsulated carbon and whisker carbon.;The kinetics of CH4/CO2 reforming was studied under differential conditions over 500--600°C. The observed rates seem to follow a …

Development Of Environmental Health And Safety Database For Small Communities, Ragava S. Nadig

Graduate Theses, Dissertations, and Problem Reports (ETD)

The National Environmental Services Center (NESC) is a group of programs, national in scope, that provide a variety of environmental services directly to small community officials, engineers, technicians, regulatory officials, and private citizens.;The primary mission of each of the NESC programs is to protect public health and the environment of America's small and rural communities-those communities of less than 10,000 people. The NESC programs provide information, technical assistance, and training to help small communities deal with their wastewater, drinking water, and solid waste treatment issues.;Thousands of informational materials pass through the organization each year. This material ranges from manufacturing product …

Hagan Benefits, Inc. Intranet, Dana M. Hagen

Masters Theses & Doctoral Dissertations

In this report I will provide some background information about Hagan Benefits, Inc.

(HBI), how the Intranet application works and detail the processes, problems and solutions encountered throughout this project.

There were some specific goals I had in mind when selecting this project. I wanted to select a project that would benefit HBI and would utilize the skills learned in the MSIS program. I also needed to find a project that could be completed in a semester's time and that would be challenging enough to hold my interest. I believe I was successful in finding a good project to balance …

Parent-Infant Interactions During Acute Painful Procedures, Catherine Bradford Mcclellan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Despite the current recognition of infant procedural pain and distress, there is a dearth of research, both in the assessment and treatment literature, of infant procedural distress. This study examined how specific parent behaviors relate to infant procedural distress and whether this relation is mediated by birth order. Results indicated that females were rated as more distressed than were males, and that birth order did not prove to be a distinguishing factor in infant distress. Finally, while some behaviors appear to have a similar influence on both preschoolers' and infants' behaviors, parents' behavior during infants' distressing procedures were found to …

Exploring Object-Oriented Gis For Watershed Resource Management, Nalishebo Nally Kaunda

Graduate Theses, Dissertations, and Problem Reports (ETD)

The adoption of object-oriented programming for spatial technological advancement is an emerging trend in GIS. This research seeks to explore Object-Oriented GIS (OOGIS) and its potential application in watershed resource management. OOGIS provides a more intuitive and realistic abstraction of real world features as intelligent objects. The ability to embed behavior, geometry, and attribution with the objects provides considerable advantages in the processing and analysis of geospatial data. The main objective of this research was to design a prototype OOGIS for watershed resource management using the object relational Arclnfo 8.1 Geodatabase. The study builds on the OOGIS concepts of inheritance, …