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University of Northern Iowa

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Articles 3151 - 3180 of 4353

Full-Text Articles in Social and Behavioral Sciences

Cover - Table Of Contents Jan 1999

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Planting Method And Fertilization Timing Effects On Ridge-Till Corn, Keith A. Kohler, Mohammadreza Ghaffarzadeh, Richard M. Cruse Jan 1999

Planting Method And Fertilization Timing Effects On Ridge-Till Corn, Keith A. Kohler, Mohammadreza Ghaffarzadeh, Richard M. Cruse

Journal of the Iowa Academy of Science: JIAS

Fertilizer application technology has improved fertilizer use efficiency in ridge-till systems, but little work on planting methods and application timing within these systems has been done. A study was conducted to evaluate corn (Zea mays 1.) response to injected nitrogen (N) fertilizer applied to different planting methods at common application times. The performance of the late spring soil nitrate and the basal stalk nitrate tests was examined within these systems. A continuous corn and a corn-soybean [Glycine max (1) Merr.] rotation were used in 1989-1991 at two Iowa locations on Nicolett and Monona series soils, line-loamy, mixed, mesic Typic …


Cover - Table Of Contents Jan 1999

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


The Species Richness Of Birds Visiting A Yard Is Influenced By The Feeders/Seeds Present, David Joseph Horn Jan 1999

The Species Richness Of Birds Visiting A Yard Is Influenced By The Feeders/Seeds Present, David Joseph Horn

Journal of the Iowa Academy of Science: JIAS

Although seed preferences of species that visit bird feeders have been well documented, we know little about feeder/seed combinations most appropriate for attracting highest species richness or increasing abundance of individual species. I studied how the species composition of birds visiting a feeding station was influenced by addition of feeders filled with mixed seed, thistle, and suet in a yard that previously contained only a feeder with sunflower seeds. Addition of a seed mixture consisting of hulled sunflower, hulled peanuts, hulled millet, and hulled "tree" nuts in an elevated platform feeder increased species richness and total number of birds visiting …


The Vascular Flora Of Doolittle Prairie State Preserve - A Prairie Pothole Wetland Complex, Paul R. Wetzel, William R. Norris, Kevin M. Lyles Jan 1999

The Vascular Flora Of Doolittle Prairie State Preserve - A Prairie Pothole Wetland Complex, Paul R. Wetzel, William R. Norris, Kevin M. Lyles

Journal of the Iowa Academy of Science: JIAS

Doolittle Prairie State Preserve is a 10 ha prairie pothole wetland complex located in Story County, central Iowa. A vascular flora of Doolittle Prairie is compiled and the prominent vegetation communities and zones described based on field observations by the authors and several additional investigators from 1982 to 1997. The preserve contains 14 shallow wetlands comprised of low prairie, wet meadow, and shallow emergent plant communities, as well as a disturbed prairie community and fence rows. These communities support a diverse vascular flora of 223 native species, plus 42 non-natives, representing 59 families and 178 genera. The Asteraceae (40), Poaceae …


Book Review: Iowa's Minerals: Their Occurrence, Origins, Industries, And Lore, Raymond R. Anderson Jan 1999

Book Review: Iowa's Minerals: Their Occurrence, Origins, Industries, And Lore, Raymond R. Anderson

Journal of the Iowa Academy of Science: JIAS

Iowa's Minerals: Their Occurrence, Origins, Industries, and Lore. Paul Garvin. 1998. University of Iowa Press, Iowa City IA. vii + 260 pages. ISBN 0-87745-626-7 hdbd., ISBN 0-87745-627-5 (pbk.).

A mineral is defined as a "naturally occurring, chemically homogeneous crystalline solid." Every mineral has a composition, structure, and characteristics that make it uniquely different from every other mineral. In his new book, Paul Garvin, Professor of Geology at Cornell College in Mount Vernon, Iowa, presents a uniquely different discussion of Iowa's Minerals. While this book does contain the requisite discussions of mineral origins, chemistry, crystallography, and other descriptive information, Garvin enhances …


The Habitat And Distribution Of The Stinkpot, Sternotherus Odoratus, In Iowa, Kristi K. Sutton, James L. Christiansen Jan 1999

The Habitat And Distribution Of The Stinkpot, Sternotherus Odoratus, In Iowa, Kristi K. Sutton, James L. Christiansen

Journal of the Iowa Academy of Science: JIAS

Twenty years of study have shown that the stinkpot, Sternotherus odoratus and the Illinois mud turtle (Kinosternon flavescens spooneri) occur in Iowa primarily in the Mississippi Alluvial Plain. Even though the turtles are found within a kilometer of each other, they are never sympatric. Illinois mud turtles are most often associated with ephemeral ponds and soils of nearly pure sand (Sparta sand and Chelsea loamy fine sand), whereas stinkpots inhabit permanent water, often fed by cold springs, and are limited to sandy, loamy soils (Aquolls and Perks sandy loam). Even though several new localities have been discovered for stinkpots, population …


Back Cover Jan 1999

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Front Matter Jan 1999

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Community Composition Of Dry Prairie In Iowa And Southeast Nebraska, Thomas R. Rosburg Jan 1999

Community Composition Of Dry Prairie In Iowa And Southeast Nebraska, Thomas R. Rosburg

Journal of the Iowa Academy of Science: JIAS

Results from quantitative research on the community composition of dry prairies across Iowa were consolidated from three different studies completed since 1983. Information is provided on the distribution and abundance of 204 dry prairie species. The most abundant species included little bluestem (Schizachyrium scoparium (Michx.) Nash), big bluestem (Andropogon gerardii Vitman), side-oats grama (Bouteloua curtipendula (Michx.) Torrey), prairie dropseed (Sporobolus heterolepis (Gray) Gray) and Kentucky bluegrass (Poa pratensis L.). Multivariate analyses were completed using two independent measures of species abundance-relative cover and community constancy. When relative cover was used to determine community composition, the abundance of graminoids (tallgrasses vs. mid-grasses) …


Back Cover Jan 1999

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Osmia Spp. Reared In Artificial Nesting Sites In A Backyard Environment, R. L. Wilson, C. A. Abel, S. G. Mcclurg Jan 1999

Osmia Spp. Reared In Artificial Nesting Sites In A Backyard Environment, R. L. Wilson, C. A. Abel, S. G. Mcclurg

Journal of the Iowa Academy of Science: JIAS

Controlled pollination in field cages is used at the United States Department of Agriculture - Agricultural Research Service North Central Regional Plane Introduction Station (NCRPIS) for seed increase of several plane species. Honey bees, Apis mellifera L., have been used almost exclusively for several years. Recently we began investigating other pollinating insects for controlled pollination. 0smia cornifrons (Radoszkowski), a solitary bee imported from Japan, has been an excellent early-season pollinator. We placed domiciles of these bees in backyards of the NCRPIS staff to aid us in providing adequate numbers of bees for use in field cages the following growing season. …


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 1999

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Front Matter Jan 1999

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Book Review: The Tallgrass Restoration Handbook: For Prairies, Savannas, And Woodlands, Stephen D. Hendrix Jan 1999

Book Review: The Tallgrass Restoration Handbook: For Prairies, Savannas, And Woodlands, Stephen D. Hendrix

Journal of the Iowa Academy of Science: JIAS

The Tallgrass Restoration Handbook: For Prairies, Savannas, and Woodlands. Stephen Packard and Cornelia F. Mutel, eds. 1997. Society for Ecological Restoration. 463 pages. ISBN 1-55963-319-0 hdbd.

The publication of the Tallgrass Restoration Handbook is an enormous step in the right direction for people who have already learned to appreciate and admire the beauty and utility of prairies and who now want to roll up their sleeves and begin the restoration of their own bit of tallgrass prairie. All of this volume excluding the first two introductory chapters (Part I) is dedicated to the practical aspects of prairie restoration.


Front Matter Jan 1999

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


A Municipal Inventory And Evaluation Of Natural Areas: History And Methodology, William R. Norris, Donald R. Farrar Jan 1999

A Municipal Inventory And Evaluation Of Natural Areas: History And Methodology, William R. Norris, Donald R. Farrar

Journal of the Iowa Academy of Science: JIAS

An inventory of natural areas in the vicinity of Ames, Iowa was conducted (1990-1994) in response to conflicts arising when significant natural areas were encountered on lands approved for development by the City of Ames (Iowa) Planning Office. Methods for objective evaluation of woodland and prairie quality were developed for use during the inventory. The woodland method is based on four components: I) Diversity of expected species, H) Structure of canopy and understory layers, III) Fidelity of species to the habitat and IV) absence of Introduced Species. Rules are explicitly stated for the scoring of each component for both the …


Read Aloud Practices In One Iowa Middle School, Linda K. Balog Jan 1999

Read Aloud Practices In One Iowa Middle School, Linda K. Balog

Graduate Research Papers

The purpose of this research was to determine whether or not teachers at Prairie Middle School in the College Community, Iowa School District were reading aloud to their students. Secondly, the research set out to determine whether those teachers surveyed knew the impact that reading aloud has on the development of vocabulary, language, and comprehension. Finally, the purpose of the research was to determine whether those teachers were choosing to read materials that would provide opportunity for. growth in vocabulary, language, and comprehension. The middle school teachers in this district were surveyed to determine what current read aloud practices are. …


Children's Perceptions Of Older Adults : Past And Present, Mary Kathryn Hatcher Jones Jan 1999

Children's Perceptions Of Older Adults : Past And Present, Mary Kathryn Hatcher Jones

Graduate Research Papers

This study compared more recent research findings, 1990s to present, with the results of earlier research studies, 1970s and 1980s, to determine whether children's perceptions of older adults have changed. Factors that contribute to and inhibit children's positive perceptions of older adults were identified. Guidelines for facilitating children's positive perceptions of older adults were suggested, and conclusions were drawn from the literature. Recommendations were made for further study of children's perceptions of older adults.


An Instructional Development Project In Grade Two : The Theme Of Friendship, Trudy L. Lainson Jan 1999

An Instructional Development Project In Grade Two : The Theme Of Friendship, Trudy L. Lainson

Graduate Research Papers

The theme of friendship was extended through quality literature experiences and related expressive activities to second grade children at the beginning of the school year. The primary goals were to involve children in the language processes and to develop a community of friendly learners. Teacher-directed and student-initiated activities were provided. The student-initiated activities were presented as options through literature-based learning centers. The goals of the centers included ways to make friends and to be a friend, an understanding that friends can be of all ages, involvement in pals, ways to cope with difficulties encountered in friendships and to recognize each …


The Reasons For Living Inventory For Adolescents (Rfl-A) : Validation In Three Adolescent Populations, Joe S. Rich Jan 1999

The Reasons For Living Inventory For Adolescents (Rfl-A) : Validation In Three Adolescent Populations, Joe S. Rich

Dissertations and Theses @ UNI

This study is intended to examine further psychometric characteristics of the Reasons for Living Inventory for Adolescents (RFL-A), a self-report measure developed specifically for use with adolescents. Three separate groups were utilized in this study: a psychiatric suicidal group, a psychiatric inpatient non-suicidal group, and a non-clinical control group from a local laboratory school. Specifically, the factor structure, discriminant validity, internal consistency reliability, and convergent validity of the RFLA total and subscales were examined. Overall, results indicated that the five-factor structure that was identified by Osman et al. (1998) was replicated. Further, results showed that the measure demonstrated adequate internal …


Exploring Social Justice With Third Graders Through The Works Of Mildred D. Taylor, Elaine M. Johnson Jan 1999

Exploring Social Justice With Third Graders Through The Works Of Mildred D. Taylor, Elaine M. Johnson

Graduate Research Papers

We need to learn the history of the civilizations that have given us the framework for all of what we teach and learn. We must learn more specifically about the Americas and the European oppression, slavery, the Civil War in the United States, and the American Dream with liberty and justice for all. Still, perhaps the most significant learning, our change of heart, happens just one person at a time. It happens by developing those relationships of mutual care and concern.

For us, the voices came from [author] Mildred D. Taylor and from Nina [a student]. For social justice to …


Kbbg-Fm: Communicating To Educate, Edward W. Ellis Jr. Jan 1999

Kbbg-Fm: Communicating To Educate, Edward W. Ellis Jr.

Dissertations and Theses @ UNI

"KBBG-FM: Communicating to Educate" is a qualitative study conducted to examine an African-American owned and operated, public, listener-supported radio station in the Waterloo/Cedar Falls community in Northeast Iowa. The researcher wanted to study how such a local radio station reaches out to its community. A review of literature revealed since the passage of the 1996 Telecommunications Act, radio has become less and less diversified, harming community localism in radio. Minority ownership of radio has also declined to an even smaller scale than before the 1996 Telecommunications Act. Based on the review of literature, the researcher formed four research questions for …


The Impact Of The Internet On Democratic Discourse, Dalia K. Hamed Jan 1999

The Impact Of The Internet On Democratic Discourse, Dalia K. Hamed

Dissertations and Theses @ UNI

The Internet has demonstrated the ability to empower its users by giving them more accurate information about matters of political, professional, and organizational concerns. While many believe that the Internet will fundamentally change political discourse, others argue that it is just another communications tool among many that may affect how governments function, but it will not affect democratic discourse. The thesis argues that unless some requirements are met, the Internet potential as a new democratic forum will not be fulfilled. Concepts such as freedom of speech, democracy, and democratic communication are essential to analyzing the potential use of the Internet …


Exploration Of Namibian Adolescents’ Sexual Knowledge, Attitudes And Behavior, Shamani-Jeffrey Shikwambi Jan 1999

Exploration Of Namibian Adolescents’ Sexual Knowledge, Attitudes And Behavior, Shamani-Jeffrey Shikwambi

Dissertations and Theses @ UNI

The purpose of this study was to examine the relationship between sexual knowledge, sexual attitude, and sexual behavior among Namibian adolescents.

Data were collected by using a ~edified version of the Prevention Minimum Evaluation Data Set (PMEDS) instrument. The participants were 45 twelfth graders, of which 23 were females and 22 males.

Analysis of the data included an examination of intercorrelation between sexual knowledge, sexual attitude, and sexual behavior, and an investigation of gender differences among these three variables. Pearson correlations were calculated for each variable and t-tests were run to look for the gender difference. Multiple regression was also …


Juvenile Justice Professionals And The Goal Of Rehabilitation, Heather Bruch Jan 1999

Juvenile Justice Professionals And The Goal Of Rehabilitation, Heather Bruch

Dissertations and Theses @ UNI

Numerous studies conducted over the past 20 years have suggested that support for rehabilitation in the criminal justice system has decreased. As a result of these findings, an increase in the examination of support for rehabilitation has occurred. According to much of the research on this issue, an important factor in the support of rehabilitation is the attitudes of criminal justice workers. The increasing prison populations are partially responsible for the heightened interest in this issue. It is believed by many that the attitudes of the workers in the criminal justice system have an effect on the success of the …


Effects Of Parenting Styles, Self-Esteem, Self-Concept, And Attribution Styles On Children’S Popularity, Michelle Ann Jagodzinski Jan 1999

Effects Of Parenting Styles, Self-Esteem, Self-Concept, And Attribution Styles On Children’S Popularity, Michelle Ann Jagodzinski

Dissertations and Theses @ UNI

The purpose of the present study was to examine the link between parent-child and child-peer relationships. This study tests a hypothesized model suggesting that adolescents' self-esteem, self-concept, and attribution styles mediate the association between parenting attitudes and social competence. The sample consisted of 170 students in the 6th through 9th grades (83 males, 87 females) and 113 of their parents (49 males, 64 females). Student questionnaires were administered in a school based setting and consisted of self-report and peer report measures. Students completed questionnaires regarding self-esteem, self-concept, attribution styles, and peer popularity. Parents responded to mailings and completed a self-report …


The Relationship Between Attention Deficit Hyperactivity Disorder And Aggression In Children: A Cross-Sectional Study, Eric Wayne Boelter Jan 1999

The Relationship Between Attention Deficit Hyperactivity Disorder And Aggression In Children: A Cross-Sectional Study, Eric Wayne Boelter

Dissertations and Theses @ UNI

This study examined the correlation between aggression and ADHD symptoms across several age groups in children. Participants were elementary and secondary students recruited from grades 1st through 12th in a suburban, university-affiliated laboratory school (N = 426). The students' teachers also participated in the study. The study consisted of administering questionnaires to students and teachers. These included: (a) The Self-Report Inventory, (b) The Peer Nomination Inventory, and (c) The Teacher Report Inventory. All of these measures were designed for this study. One way analysis of variance for gender showed that males were more aggressive and had more ADHD symptoms than …


Outdoor Play, Carolyn E. Althaus Jan 1999

Outdoor Play, Carolyn E. Althaus

Graduate Research Papers

This paper is a review of the literature relative to outdoor play practices in education. Benefits, as well as problems, associated with outdoor play practices were discussed. Guidelines for planning and implementing successful outdoor play practices were outlined and conclusions were drawn from the literature. Recommendations were made for future outdoor play programs.


Personality Characteristics Associated With People Who Frequently Experience Flow, Mark A. Ackerman Jan 1999

Personality Characteristics Associated With People Who Frequently Experience Flow, Mark A. Ackerman

Dissertations and Theses @ UNI

Flow is a state of mind that has been found to occur when people become immersed in a challenging activity that matches or slightly exceeds their skill level. It has been suggested that some people may be more likely to enter this state of mind than others. The purpose of this study was to attempt to identify personality traits common to people who frequently experience flow.

Amount of flow generally experienced in 115 college undergraduates was measured with two modified flow measures, the modified Flow State Scale (FSS) and the modified Flow Descriptions Questionnaire (FDQ). Eight personality characteristics were hypothesized …