Digital Commons Network^™

A Christian Parent’S Guide To Harry Potter And The Sorcerer’S Stone, Gina Louise Burkart

Dissertations and Theses @ UNI

A Christian Parent's Guide to Harry Potter and the Sorcerer's Stone provides parents with a variety of activities and opportunities for discussing Harry Potter and the Sorcerer's Stone through the Christian lens. The guide is founded and supported by educational theorists such as Kohlberg and Piaget and is built on the principle that parents can help their children sort out fantasy and reality and moral issues by discussing literature with their children. Each chapter is broken down into four sections: Bridging the Gap, Talking About It at Home, Scripture Connection, and Activities. Bridging the Gap allows parents and children to …

The Student Worry Questionnaire-30: Further Examination Of Gender Differences, Janet A. Carter

Dissertations and Theses @ UNI

The construct of worry has captured the attention of researchers in recent years and has been implicated in several psychological disorders. Initially, the lack of validated instruments hampered the study of the worry construct. Several such instruments have been developed in recent years, but two instruments have predominated in the literature concerning the construct of worry-the Penn State Worry Questionnaire (Meyer, Miller, Metzger, & Borkovec, 1990) and the Worry Domains Questionnaire (Tallis, Eysenck, & Mathews, 1992). While both appear psychometrically sound, these instruments focused on different and distinct aspects of the worry construct. Some researchers (Davey, 1993; Starcevic, 1995; Tallis …

Web-Based Distance Instructional Partnership For Maritime Technology Of Pacific Rim Countries, Chun-Mei Shieh

Dissertations and Theses @ UNI

The prime purpose of this study was to identify and determine the attitudes and intentions of the faculty members in the field of marine technology education in Taiwan and Australia regarding adopting Web-based distance education. A secondary purpose was to develop guidelines for a program in preparation for implementing Web-based distance education for faculty members in Taiwan.

Five groups in the field of marine technology composed the research population for this study. They are the faculty members in Taiwan in nine vocational high schools, two junior colleges, the National Kaohsiung Institute Marine Technology (NKIMT), and the National Taiwan Ocean University …

A Simulation Program For Electronics Skill Knowledge Instruction At A Selected Community College In Taiwan, Hung-Jen Chen

Dissertations and Theses @ UNI

Since computers came into existence, simulations have been associated with it as the two inseparable media, simulations and computers, have had a mutually beneficial effect. With the advent of the flexible microcomputer, simulation has been widely used. In recent years, computer technology has infiltrated every sector in society, especially the educational system and industrial operations where simulations are essential for satisfying both instructional and industrial needs. Simulation effectiveness research has been mixed in both the educational system and industries. Therefore, it is still necessary to evaluate how effective computer simulation is as an instructional method or strategy.

This study was …

The Effects Of An Interactive Computerized Multimedia Tutorial On Knowledge Gain In Modular Fixturing Design Concepts, Veekit O'Charoen

Dissertations and Theses @ UNI

This study was designed to compare student knowledge gain from learning modular fixturing design concepts by computer tutorial versus traditional lecture. The use of computer tutorial to support engineering and technology classroom instructions has been a major issue for many studies. The undergraduate curricula in engineering and technology are becoming increasingly complex due to the today's modern wide variety of manufacturing processes. The concept of modular fixturing in tool design course is one of the technical competencies which most industries would like graduates to be able to apply their knowledge to real-world problems and situations.

An interactive computerized multimedia tutorial …

Migration And Cultural Identity: Performing The Afro-Caribbean Woman's Struggle, Elvinet Samantha Wilson

Dissertations and Theses @ UNI

Current research suggests a relationship between cultural identity negotiation and the phenomenon of border crossing. While a wealth of literature exists on the topic of migration, few studies reflect a scope that includes in-depth analysis of the experiences of Afro-Caribbean women in the United States.Through ethnographic and autoethnographic methodologies, and using a feminist theoretical lens, this study explores issues relating to cultural identity negotiation in the lives of 10 Black women from Jamaica, The Bahamas, and Trinidad, who now reside in the Midwest region of the United States. Analysis based on a grounded theory approach, allowed themes to emerge from …

Suitability Of Hsp70 As A Biomarker For Pesticide Contamination Of Aquatic Systems: A Laboratory Investigation Using Chironomus Tentans As A Model, Lori Rae Covington

Dissertations and Theses @ UNI

Though the use of pesticides has resulted in increased crop production and other benefits, concerns have been raised about potential adverse effects on the environment, especially the hydrologic system which supports aquatic life. To chemically analyze for all possible contaminants at all at-risk sites would not only be costly, but practically infeasible and would yield no information about biological effects. Therefore, a significant portion of the scientific community has turned their investigative focus to biomarkers as a measurement of sublethal contaminant exposure and effect. A biomarker that has been the recent focus of much research is the family of heat …

Identifying And Comparing Misconceptions Held By American And Russian University Students In Mechanics, Alexandra Sokolova

Dissertations and Theses @ UNI

This paper reports on a study of misconceptions held by undergraduate students completing an introductory physics course at the University of Northern Iowa and first-year undergraduate students taking a mechanics course at the Herzen State Pedagogical University of Russia. Existence of misconceptions in mechanics among Russian and American students was investigated prior to instruction and at the completion of the one-semester course. Different teaching approaches were used to introduce the students to mechanics. An activity-based approach was emphasized at UNI and a traditional lecture-lab approach was used at Herzen University. The emphasis of the study was placed on identifying misconceptions …

The Role Of Environmental Analogs In Identifying Potentially Invasive Woody Plants In Iowa, Mark P. Widrlechner

Journal of the Iowa Academy of Science: JIAS

Americans cultivate a large and diverse range of introduced woody plants as important sources of food and forest products, as well as for urban horticulture, amenity and wildlife plantings, and windbreaks. A small number of these species have become serious pests, disrupting well-established native plant communities or functioning as range and agricultural weeds. More of these species are not serious pests today, but have escaped cultivation and serve as potential sources of future outbreaks. Two other sources of potentially invasive woody plants are found among species that are not or are only rarely cultivated, about which we often know little …

Introduced Fungi: Some Cause Significant Plant Disease Problems, Lois H. Tiffany

Journal of the Iowa Academy of Science: JIAS

Species of the three groups of fungi characterized here on the basis of their energy source acquisition have differing potentials for becoming problem organisms following introduction as alien fungi new to Iowa. The decomposer group of fungi that obtain an energy supply by action of extracellular enzyme activity on dead plant tissues typically have perennial mycelium, are cosmopolitan in distribution, and are unlikely to become problems even if established. The second group, the mycorrhizal/lichen group are highly specific in their relationships. The mycorrhizal fungus group have a potential for being introduced as mycorrhiza already established with the roots of particular …

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 …

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 …

History And Development Of The Eurasian Watermilfoil Program In Iowa, Gary S. Phillips

Journal of the Iowa Academy of Science: JIAS

Following a concerted effort by citizens of the Iowa Great Lakes area to address the threat posed by Eurasian watermilfoil (Myriophyllum spicatum L.) to waterbodies in Iowa, the Iowa Eurasian Watermilfoil Law was passed in 1996 by the Iowa legislature. Passage of this law led to the establishment of the Eurasian Watermilfoil Program in July 1996 to address the requirements specified by this legislation. Since establishment of the Eurasian Watermilfoil Program, numerous activities have been carried out to address the threat posed to aquatic ecosystems by Eurasian watermilfoil. These include public awareness and education, boat access monitoring, aquatic vegetation monitoring, …

Ecological Problems With Iowa's Invasive And Introduced Fishes, Neil P. Bernstein, John R. Olson

Journal of the Iowa Academy of Science: JIAS

Since the time of European settlement, at least 59 non-indigenous fish species have been introduced, reached, or moved within Iowa waters. At least 28 nonnative fish species have been introduced into, or reported from Iowa waters since settlement. Of that number, 10 are established at this time through natural reproduction. In addition, many species of native fishes have been translocated within the state, and we provide documentation for 31 of these species. Two translocated species, gizzard shad (Dorosoma cepedianum) and yellow bass (Marone mississippiensis), have had adverse impacts on Iowa's aquatic ecosystems. While many introductions are thought to be benign, …

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Invasive Species In Iowa: An Introduction, James J. Dinsmore, Neil P. Bernstein

Journal of the Iowa Academy of Science: JIAS

Concern over the increasing spread of invasive species and the potential impacts of those species on native communities has been the subject of several books and hundreds of research papers in recent years. President Clinton's Executive Order on invasive species in February1999 raised national attention to this issue. Natural resource agencies have been plagued by an ever-increasing number of invasive species and now consider this issue the second most important problem (after habitat loss) in their fight to maintain some semblance of natural communities on this planet. One group of experts estimated that in the United States alone, invasives cost …

War On Weeds: Winning It For Natural Areas, Jerry E. Asher

Journal of the Iowa Academy of Science: JIAS

I am delighted to be here with you today to discuss the rapidly accelerating damage that invasive exotic plants are inflicting on natural areas in this country. This problem may seem overwhelming, but you need not despair because there are economical, realistic, and effective strategies available to meet this challenge.

There are two purposes to this presentation: to give you information you can use to convince others that invasive exotic plants are seriously harmful, and to suggest that we can win this war on invasive exotic plants if we engage enough of the right people.

An Overview And Management Plan Of Iowa's Non-Native, Invasive, Terrestrial Forbs, Deborah Q. Lewis, Richard O. Pope

Journal of the Iowa Academy of Science: JIAS

Non-native, invasive forb species have been a problem in Iowa since the earliest decades of Iowa's European settlement. The history of studies of Iowa's invasive plants began with L. H. Pammel, and these studies continue to present. Three tables cite the occurrence of many of these species in the state, with Table 1 listing 93 non-native forbs reported by Pammel, Table 2 citing ten invasive forbs of natural areas, and Table 3 adding 38 observed or potential aggressive species of Iowa's anthropogenic and natural areas.

There has been a divergence of interest and research in the management of invasive species …

More Than A Century Of Change In The Ames, Iowa Flora (1859-2000), William R. Norris, Mark P. Widrlechner, Deborah Q. Lewis, Jimmie D. Thompson, Richard O. Pope

Journal of the Iowa Academy of Science: JIAS

We compared two floras compiled in Ames, Iowa: (1) an "historic" flora based on two published floras (1871, 1890) and on 1450 herbarium voucher specimens of plants collected in Ames between 1859 and 1899, and (2) a "current" flora compiled by us during recent fieldwork (1990-2000). Our goals were to determine 1) long-term changes in composition (i.e., the proportion of native species) over time, 2) long-term changes in the abundance of individual plant species over time, and 3) the extent of gains and losses of native and non-native plant species. We found that the proportion of native species declined over …

Purple Loosestrife: History, Management, And Biological Control In Iowa, Amy P. Wiebe, John J. Obrycki

Journal of the Iowa Academy of Science: JIAS

Purple loosestrife (Lythrum salicaria) is an invasive plant species infesting wetlands in North America. Biodiversity and wetland habitat quality are reduced following purple loosestrife establishment. Several management tactics, including cultural, mechanical, and chemical controls, have had limited success in reducing the spread of purple loosestrife. Beginning in the 1990s, a biological control program has introduced several species of natural enemies from Europe that feed on purple loosestrife. Since 1994, Iowa State University has reared and released two species of beetles that feed on purple loosestrife, Galerucella calmariensis and G. pusilla. Biological control is one component of an integrated purple loosestrife …

Forest Invasives In Iowa: Current Problems And Future Issues, John Walkowiak, John Haanstad

Journal of the Iowa Academy of Science: JIAS

Iowa's forest resources of primarily deciduous trees covers over 0.8 million hectares (2 million acres) of upland and floodplain sites too steep or too wet for traditional row crop agriculture. These limited natural forests along with urban trees and shelterbelts plantings of trees are critical for environmental and economic enhancement in the state. Although not yet established in the state, exotic insects, such as gypsy moth, Asian longhorned beetle, and pine shoot beetle, threaten native tree vitality. Established exotic diseases such as oak wilt and Dutch elm disease continue to plague the survival of Iowa's oak and elm resources, respectively. …

Non-Native Amphibians And Reptiles In Iowa, James L. Christiansen

Journal of the Iowa Academy of Science: JIAS

Only a few species appear as introductions into Iowa in the last 30 years. The bullfrog, Rana catesbeiana, was systematically introduced along with fish stocked from hatcheries in the 1930s and this species continues to spread in northern Iowa where it poses a hazard to smaller frogs. Turtles sold as pets, primarily map turtles (Graptemys pseudogeographica and G. geographica) and red-eared turtles (Trachemys scripta) continue to be found in scattered ponds, usually rural, throughout the state. The eastern box turtle (Terrapene carolma) has been reported in or on the edge of most major Iowa cities even though no breeding population …

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 …

The College Redeemer, V2 I2, University Of Northern Iowa

College Redeemer

The College Redeemer - An alternative publication at the University of Northern Iowa published monthly beginning in September of 2001.

Earth News, V25, Fall 2001, Department Of Earth Science, University Of Northern Iowa.

Earth News

Inside this issue:

--- News from the Department Head
--- Earth Science Staff Activities
--- Earth Science Majors
--- 2001 Earth Science Graduates
--- Student Research Presentations
--- Student Internships
--- STORM: Science center for Teaching, Outreach, and Research on Meteorology
--- Studies in the Geology of Iowa for Teachers
--- Earth Science Student Assistants
--- Sigma Gamma Epsilon - Gamma Sigma Chapter
--- Gifts to the Department of Earth Science
--- 2001-2002 Scholarship and Award Recipients
--- 2001 Spring Trip Summary
--- Earth Science Seminar Series
--- Rapa Nui Expedition - March 2000
--- Alumni Profile - Larry J. …

Uni Schedule Of Classes, Summer 2001, University Of Northern Iowa

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the University of Northern Iowa.

Ballast Quarterly Review, V16n4, Summer 2001, Roy R. Behrens

Ballast Quarterly Review

A journal devoted to wit, the contents of which are intended to be insightful, amusing, or thought provoking.

Darwin Remembers: Recollections Of A Life's Journey, Floyd Sandford

Iowa Academy of Science Documents

A program of the performance of Darwin Remembers by Floyd Sandford, presented at the 113th (2001) Annual Meeting of the Iowa Academy of Science. Includes a short biography of Charles Darwin, and a listing of the books and monographs of Charles Darwin.

Program Abstracts, 113th Session, Iowa Academy Of Science, April 20-21, 2001, Iowa Academy Of Science

Iowa Academy of Science Documents

Presentation abstracts from the annual meeting of the Iowa Academy of Science

Consumer Views On Genetically Modified Crops, Levente Timar

Major Themes in Economics

Differences in consumer views about genetically modified crops have recently lead to trade disputes between the United States and the countries of the European Union. This paper uses a simple cost-benefit model to examine what factors influence consumer views on modified crops, and analyses them in an attempt to explain the observed difference between the American and European perspectives. Potential socio-economic, health and environmental effects interact with personal beliefs to shape consumer views. It is argued that most of the difference in opinions can be traced back to the lack of accurate information. There is a difference in the perceived …