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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 …

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 …

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 …

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 …

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 …

The Effects Of Multi-Sensory Teaching Practices On The Reading Fluency And Comprehension Of Bilingual 2Nd Grade Students, Gloria Gonzalez

Theses and Dissertations - UTB/UTPA

Language, the heart of the educational process, is the vehicle through which students are primarily being educated and prepared throughout their schooling (Lam, 1996). Language acquisition is described as having four processes: socio-cultural, linguistic, and academic and cognitive. Teaching, learning, and curriculum content must; therefore, be culturally meaningful, interactive, and collaborative. Since a student's learning style is a major contributing factor in teaching and not all students learn in the same manner, educators must know and understand the bilingual and bicultural child's identities and emphasize interdisciplinary, cooperative, and multi-sensory lessons in their classrooms (Chamot,1994). Educators must incorporate the wealth of …

Relationship Between Cognitive Performance And Sociocultural And Linguistic Variables In Bilingual Mexican American Children, Lorraine Geralyn Boudville

Theses and Dissertations - UTB/UTPA

This study investigated the relationship between cognitive ability (dependent variable) and 5 independent variables: acculturation, socioeconomic status (SES), oral acquisition of syntactic structures, family size, and family structure. Instruments used were the WISC-III, Bilingual Syntax Measure (BSM), Sociocultural Scales in the System of Multicultural Pluralistic Assessment (SOMPA). The sample consisted of 96 bilingual Mexican American children aged six and seven years, randomly selected from five school districts in south Texas; 47 were female, and 49, male. The method of analysis was multiple linear regression. The null hypothesis was tested at the .05 level of significance, using a F distribution. Results …

Existence Of Solutions Of The Classical Yang-Baxter Equation For A Real Lie Algebra, Jorg Feldvoss

University Faculty and Staff Publications

We characterize finite-dimensional Lie algebras over the real numbers for which the classical Yang-Baxter equation has a non-trivial skew-symmetric solution (resp. a non-trivial solution with invariant symmetric part). Equivalently, we obtain a characterization of those finite-dimensional real Lie algebras which admit a non-trivial (quasi-) triangular Lie bialgebra structure.

Social, Religious, And Personal Contributors To Prejudice, Robert Lundblad

Faculty Publications - Doctor of Psychology (PsyD) Program

Prejudicial beliefs and behaviors have been viewed from numerous perspectives. Four factors, religious attitudes, pride of in-group membership, traditional beliefs, and certain personality types, have individually been shown to be associated with prejudice. Some researchers have looked at a few of these factors together, but none have looked at all four together to examine potential relationships and their individual contribution to prejudicial thinking. This research is designed to investigate attitudes toward out-groups, sources of prejudice, and religious outlook. Four measures of religious attitudes, the Quest scale of the Religious Life Inventory (RLI), the Intrinsic and Extrinsic scales from the Religious …

Interferon Regulatory Factor 7: A Key Cellular Mediator Of Lmp-1 In Ebv Latency And Transformation, Luwen Zhang, Joseph S. Pagano

Nebraska Center for Virology: Faculty Publications

Interferon regulatory factor 7 (IRF-7) was cloned within the biological context of Epstein–Barr virus (EBV) latency, and has an intimate relation with EBV. EBV latent membrane protein 1 (LMP-1) regulates IRF-7 both by inducing the expression of IRF-7 and by activating IRF-7 protein through phosphorylation and nuclear translocation in a post-translational manner. The activated IRF-7 then functions to regulate both EBV and cellular target genes involved in latency, transformation and immune regulation. IRF-7 appears to be a key cellular latency protein involved in both the pathogenesis and persistence of EBV infection.

Identification Of A Cellular Protein That Interacts And Synergizes With The Rta (Orf50) Protein Of Kaposi’S Sarcoma-Associated Herpesvirus In Transcriptional Activation, Shizhen Wang, Shuhong Liu, Ming-Hoi Wu, Yunqi Geng, Charles Wood

Nebraska Center for Virology: Faculty Publications

Lytic reactivation of Kaposi’s sarcoma-associated herpesvirus (KSHV), or human herpesvirus 8, from latency requires transcriptional transactivation by the viral protein RTA encoded by the ORF50 gene. Very little is known about how RTA functions and the cellular factors that may be involved in its transactivation function. Using the yeast two-hybrid system, we have identified a human cellular protein that can interact with KSHV RTA. The cellular protein, referred to as the human hypothetical protein MGC2663 by GenBank, is encoded by human chromosome 19. This protein is 554 amino acids (aa) in size and displays sequence similarity with members of the …

Regulatory Review By The Executive Office Of The President: An Overview And Policy Analysis Of Current Issues, James F. Blumstein

Duke Law Journal

No abstract provided.

The Psychology Of Accountability And Political Review Of Agency Rules, Mark Seidenfeld

Duke Law Journal

No abstract provided.

Journal Staff

Duke Law Journal

No abstract provided.

Masthead From Nebraska Bird Review December 2001 Volume 69 Number 4

Nebraska Bird Review

The Nebraska Bird Review (http://rip.physics.unk.eduINOU/) is published quarterly by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears of dues. Annual subscription rates (on a calendar-year basis only): $14.00 in the United States; $18.00 for all foreign countries, payable in advance. Single copies are $4.00 each, postpaid, in the United States, and $5.00 elsewhere. Send orders for back issues to Mary Prichard, NOU Librarian, University of Nebraska State Museum, Lincoln, NE 68588-0514.

Memberships in NOU (on a calendar year basis only): Active, $15.00; Sustaining, $25.00; Student, $10.00; Family Active, $20.00; Family Sustaining, …

Scale Insects (Hemiptera: Coccoidea) Of Ornamental Plants From SãO Carlos, SãO Paulo, Brazil, A. L. B. G. Peronti, D. R. Miller, C. R. Sousa-Silva

Insecta Mundi

A list of 35 scale insects collected from 72 ornamental plant species in São Carlos, São Paulo, Brazil is provided. Regarding host specificity, 30 scale insects were polyphagous, 4 oligophagous, and 1 monophagous. A total of 102 coccoid/plant associations are recorded, 29 of which are new host records for the species; 60 are new host records for the species in Brazil. Pulvinaria urbicola Cockerell, 1893 (Coccidae), Phenacoccus similis Granara de Willink, 1983 (Pseudococcidae), and Orthezia molinarii (Morrison, 1952) (Ortheziidae) are recorded for the first time in Brazil. In addition, we describe the injury caused by scale insects on ornamental plants.

Conceptual Constraints On Thinking About Genocide, David Moshman

Department of Educational Psychology: Faculty Publications

Our thinking is unavoidably constrained by our conceptual structures. To the extent that we reflect on and reconstruct our concepts, however, we can sharpen our thinking. The first section of this article considers the nature of concepts, highlighting a standard distinction between prototype-based and formal concepts.

Drawing on these insights from cognitive psychology, the second section suggests that the ability to recognize and understand genocides is greatly restricted by Holocaust-based conceptions of genocide. In turn one can enhance one’s understanding via the construction and application of formal concepts of genocide.

Extending this argument, I observe in the third section that …

Documentary Editing, Volume 23, Number 4, December 2001.

Documentary Editing: Journal of the Association for Documentary Editing (1979–2011)

No abstract provided.

Energy Storage Systems For Advanced Power Applications, Aysen Arsoy, Yilu Liu, Paul F. Ribeiro, Brian K. Johnson, Mariesa Crow

Electrical and Computer Engineering Faculty Research & Creative Works

While energy storage technologies do not represent energy sources, they provide valuable added benefits to improve stability power quality, and reliability of supply. Battery technologies have improved significantly in order to meet the challenges of practical electric vehicles and utility applications. Flywheel technologies are now used in advanced nonpolluting uninterruptible power supplies. Advanced capacitors are being considered as energy storage for power quality applications. Superconducting energy storage systems are still in their prototype stages but receiving attention for utility applications. The latest technology developments, some performance analysis, and cost considerations are addressed. This paper concentrates on the performance benefits of …

Electrical Characterization Of Thin Film Nanostructure Templates, Christopher James Garman

Graduate Theses, Dissertations, and Problem Reports (ETD)

An improved apparatus for anodizing aluminum films on Si substrates is presented. In addition, an explanation is given for adapting the system to SiC and glass substrates. The system presented is optimized for throughput and safety to focus on volume production. MOS capacitors created with the system are analyzed with capacitance-voltage measurement techniques to provide insight into device operation. Ni is deposited into porous alumina templates to create Ni nanostructures.

Fabrication Of Thin Film Nanoscale Alumina Templates, Paul B. Sines

Graduate Theses, Dissertations, and Problem Reports (ETD)

Semiconductor nanostructures have superior electronic and optical properties that are expected to play an important role in 21st century electronic and photonic devices. Recognizing this potential, semiconductor nanostructures have been the focus of research over the past 25 years, and many ultra-high performance devices have been demonstrated. While the potential of this class of devices is clear, their commercial applications have been limited by the lack of a fabrication process suited to economical volume production. The initial method of nanostructure fabrication using electron beam lithography and reactive ion etching is not considered practical due to its high cost and low …

Pest Management Practices Used By West Virginia Corn Growers, Leasa Dianne Wilkerson

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study was to provide information that might be useful to researchers and extension personnel at West Virginia University in developing and designing educational programs concerning pest management for corn farmers. This research identified current trends in management practices, insect, fungal, and weed problems, and educational needs so that instructional materials can be designed to meet clientele needs. Data were collected via 100 questionnaires mailed to farmers in the top ten corn producing counties in West Virginia. Of these, thirty-three useable surveys were returned.;It was found that Gray leaf spot and Maize virus were the most prevalent …