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Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Evaluation Of Passive Integrated Transponders As A Marking Technique For Turkey Poults, Dewaine H. Jackson, William H. Bunger

Journal of the Iowa Academy of Science: JIAS

Injectable, passive integrated transponders (PITs) were evaluated as a marking technique for newly hatched wild turkey (Meleagris gallopavo Linnaeus) poults. Seven of 12, 3-day-old domestic turkey poults received a PIT implant and a wing tag. A control group of five poults received only a wing tag. Two subcutaneous implant sites were evaluated, along the right side of the neck and in the area between the right inner thigh and breast. One of7 PITs failed or was expelled during the first week. Four scanning errors, in which the PIT was present yet not detected during the initial scanning attempt, occurred in …

Range Expansion Of The Great-Tailed Grackle In The 1900s, James J. Dinsmore, Stephen J. Dinsmore

Journal of the Iowa Academy of Science: JIAS

In 1900, the range of the Great-tailed Grackle extended north of the Mexican border only into Texas. Since then, it has expanded its range greatly. It now nests in 14 states and has strayed to an additional eight states and three Canadian provinces. Much of this expansion has occurred since 1960. Great-tails often stray far from their normal range, especially in spring. Most of these strays are single individuals. In states where they have nested, breeding birds typically reach the state a few years after the first reports of the species. Great-tailed Grackles do well in a variety of human …

Annual Report Of The Iowa Academy Of Science, 1992-93, Paul E. Rider

Journal of the Iowa Academy of Science: JIAS

Starting in 1976, annual reports have served as a continuing record of the activities of the Iowa Academy of Science. These augment a 100 year history of the Academy which was written in the centennial year of 1975. This report covers the period from July 1, 1992 to June 30, 1993. It is based on the official records of the Academy (committee reports, Board minutes, correspondence) as well as the recollections, impressions and thoughts of the author.

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Science Notes - Nabt Grant Focuses On Student Research

Iowa Science Teachers Journal

The National Association of Biology Teachers' project, Encouraging High School Student Research in Biology through Teacher-Scientist Partnerships, is accepting applications for nationwide field testing to begin in the fall of 1994. The project is funded by a five-year grant from the National Science Foundation.

Editorial Office & Staff; Officers, Iowa Academy Of Science; Executive Board & Regional Directors, Iowa Science Teachers Section

Iowa Science Teachers Journal

No abstract provided.

The Iowa Science Teachers 1993 Fall Conference, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Luncheon Speaker ... 2-3
Exhibitor Checkoff ... 4
Raffle ... 5
Door Prizes ... 6 - 8
Housing Information ... 9
Concurrent Sessions I ... 10
Concurrent Sessions II ... 14
Concurrent Sessions III ... 19
Luncheon Information ... 24
Conference Registration Form ... Centerfold
Application for Membership ... Centerfold
Concurrent Sessions IV ... 25
Concurrent Sessions V ... 30
Corporate Sponsors ... 35
Exhibitors ... 36-37
Science Center of Iowa ... 38
Map ... 39
Acknowledgments ... 40
ISTS Officers and Regional Directors ... Inside Back Cover

Gesell And Vygotsky: Alternative Approaches To Readiness, Melissa L. Heston

Institute for Educational Leadership Monograph Series

The concept of "readiness" has a long history within the realm of developmental psychology and an almost equally long history within the realm of education. This concept can be traced to the early work of Arnold Gesell and his colleagues who collected extensive data on the developmental advances of children (Gesell & Ilg, 1949). Gesell placed heavy emphasis on the role of biological factors including genetics in determining the rate at which individual children progressed through a universal and hierarchical set of developmental milestones. The environment, provided it fell within the extremely wide range of normal environments, played little role …

Mutant Weeds Of Iowa: V. S-Triazine Resistant Setaria Faberi Herrm, R. Thornhill, J. Dekker

Journal of the Iowa Academy of Science: JIAS

S-triazine resistance in giant foxtail (Setaria faberi Herrm.) has been reported previously, but not in the midwestern U.S. corn belt or Iowa. A study was conducted using a chlorophyll fluorescence assay to confirm the presence of resistance in one S. faberi population in Iowa. Variable chlorophyll fluorescence assays confirmed that a population of this species with this type of resistance exists in Iowa. This is the first report of s-triazine resistance in S. faberi, and the fourth species with this type of herbicide resistance, found in an Iowa agroecosystem.

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Iowa Academy Of Science 105th Annual Meeting [1993]: Advance Program, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

Public Policy & Economic Justifications For Renewable Energy, Dean Eyler

Presidential Scholars Theses (1990 – 2006)

We lie at a unique place in history, one where humanity's drive to industrialize has created an environmental crisis that may threaten the very existence of the planet. The new challenges posed by environmental crises are becoming shockingly apparent. Scientists are discovering, and illustrating to policy-makers, new ways in which we are destroying the earth and its surrounding atmosphere. Although these kinds of revelations are by no means new, the scale of destruction in these scenarios is immensely greater. Warming of the atmosphere due to the greenhouse effect, depletion of the ozone layer, destruction of forests, acid rain, air pollution, …

Advances In Biomolecule Analysis: Ftms Of Macromolecules, Curtiss D. Hanson, Ira M. Simet, Suzanne R. Smith

Journal of the Iowa Academy of Science: JIAS

The development of Fourier transform ion cyclotron resonance (FT-ICR) as an analytical technique has opened new avenues to the analysis of high molecular weight biomolecules. Because mass analysis is based on a detection of a frequency, it is possible to obtain high resolution mass measurements without sacrificing sensitivity. The unique ability to analyze high mass ions is based in the design of a passive ExB ion trap. Although in the past, field inhomogeneities have limited this technique, recent developments in both trap designs and excitation techniques have resulted in major improvements in both sensitivity and resolution.

Impact Of Elementary Teachers’ Science Backgrounds On The Teaching Of Science In Iowa Elementary Classrooms, Nancy Lynn Heiter

Dissertations and Theses @ UNI

The purpose of this study was to investigate the high school and college science background of elementary teachers in Iowa and to relate this background to the amount of time these teachers spend teaching about science. The population from which this sample was drawn consisted of elementary school teachers in Iowa. A stratified random sample of schools based on school district size was used. Surveys were mailed to principals, who were asked to distribute the surveys to teachers. From the population surveyed, 475 teachers participated in the study. The chi square analysis was used to show relationships between data collected. …

The Gifted/Learning Disabled Student: A Contradiction In The Classroom, Caroline M. Bredekamp

Graduate Research Papers

The following study is a review of current literature concerning identification processes, as well as a delineation of appropriate learning strategies for gifted/learning disabled students. The analysis continues with an examination of the needs of a potentially gifted/learning disabled student. Throughout his academic career, the subject of this analysis experienced difficulties in school. Despite his high intelligence, he did not achieve academically according to either grade level testing or batteries measuring personal aptitude. The resulting combination of the review of literature and the student analysis produces, from the viewpoint of best recommended practice, suggested strategies for educators teaching paradoxical learners. …

Essential Learner Characteristics In Instructional Design, Fong-Chin Fan

Graduate Research Papers

"The role of the professional educator is to be familiar with those factors affecting learning and to design educational experiences that maximize the learning that occurs" (Armstrong, 1987, p. 157). If professional educators want learners to gain the most from education, they must consider those factors affecting learners' learning. For example, as noted by Kemp (1985), suppose that you had never known the design of instruction, and you begin your lecture at the first class meeting of your course. You have put a lot of work into developing the beginning unit in order to influence students with the value of …

Understanding Learning Styles And Their Implications For Education, Linda Jones

Graduate Research Papers

Today, more than ever, a main concern of educators is how students attain a given piece of information or acquire a skill (Posey, 1984). This concern over how students learn has led to research in the area of learning styles. Learning styles are defined as "personally preferred ways of dealing with information and experience of learning that crosses content areas" (Della-Dora and Blanchard, 1979, p.22).

Mechanistic Studies On The Preparation Of The Hantzsch’S Base From Ethyl Acetoacetate And Chloromethylmethyl Ether, Huo-Jin Hsieh

Dissertations and Theses @ UNI

Dihydropyridines, which were first studied by Hantzsch in 1882, now bear his name. A new synthesis of Hantzsch 's base, 2,6-dimethyl-3,5-dicarboethoxy-l ,4- dihydropyridine (lb), was discovered. The preparation of Hantzsch's base (lb) from new starting materials, ethyl acetoacetate (3) and chloromethylmethyl ether (4), was described. Ethyl acetoacetate was reacted with sodium amide in liquid ammonia followed by chloromethylmethyl ether to form the 2,6-dimethyl-3,5-dicarboethoxy1,4-dihydropyridine (lb) in 84% overall yield. Compound (lb) was further identified by its oxidation to the corresponding pyridine, 2,6-dimethyl-3,5-dicarboethoxypyridine ( 11 b) by glacial acetic acid. A mechanism for the formation of the compound ( 1 b) was …

International Volunteer Exchange: An Attitudinal Study Among Iowa And Tijuana, Mexico Environmental Organizations, Rosa M. Bustamante

Graduate Research Papers

Exchanging ideas stimulates people's imagination, facilitating creativity and productivity. Three world issues have the opportunity to be linked through this stimulus: international cooperation, environmentalism, and volunteerism.

The link could be manifested in the form of an international volunteer exchange program (IVE), where interested volunteers from Iowa (a state in a developed country), would go to Tijuana (a city in a developing country) to work in an environmental organization, and volunteers from Tijuana would come to Iowa to work in environmental organizations. Through the use of volunteers, nations would be able to work together and learn about environmental protection from one …

An Evaluation Of 15 Studies Concerning The Effectiveness Of Tutorial Cai, Chin-Kau Tung

Graduate Research Papers

Increased use of the computer in business, in the classroom, and in the home has become apparent in recent years. Especially, the amount of computers in classrooms has been increasing rapidly in the last several years. According to Tolman and Allred (1991), the number of microcomputers and terminals in U.S. schools was estimated to be between 200,000 and 300,000 in 1982. In 1989, the number had increased to approximately 2.4 million. According to U.S. government statistics, the number of computers in homes is elevating. At the beginning of the 1980s, there were fewer than one million, but by the end …

Van Buren County Mothers As Readers And Role Models For Tomorrow’S Literate Children, Kristin Anne Steingreaber

Graduate Research Papers

A demographic survey was conducted of mothers from Van Buren County, Iowa. The population consisted of women who had given birth to a child in 1992 and received a TLC, TOMORROW'S LITERATE CHILDREN, packet. Questionnaires were sent out to 79 women, of whom, 35 responded. The questions focused on their age, employment, reading activities - a)what reading they did for themselves and their child, b)their source of books for their infants, c)the reading materials they provided, d)their use of the public libraries and e)their activities after they received the TLC packet. Findings indicated that although they had busy schedules, working …

Implications Of Teacher In-Service Training On Attention Deficit Hyperactivity Disorder Identification, Glenn Evan Haupt

Dissertations and Theses @ UNI

This study examined the impact of teacher in-service training on the ability of teachers to identify children with Attention Deficit Hyperactivity Disorder (ADHD) in their classrooms. The subjects were 16 teachers from two small rural midwestern schools. All but one of the teachers were females, with a range in years of teaching experience from five through 30 years.

The intent of the study was to investigate if an ADHD in-service training program would have a beneficial effect on the ability of teachers to identify students in their classrooms with behaviors characteristic of ADHD. The subjects were split into two groups, …

A Study Of Science Teacher Perceptions And The Implementation Of Science-Technology-Society Education In Iowa Senior High Schools, David L. Johnson

Dissertations and Theses @ UNI

The purpose of this study was to determine the extent to which Science-Technology Society (STS) education has been implemented into the science curriculum and if teachers perceptions and personal assessment of STS education in Iowa senior high schools vary with the teacher's STS background or educational degree. Consisting of 190 senior high school science teachers (grades 9-12) in forty-nine schools distributed throughout the state of Iowa, the sample was obtained by a systematic, stratified sampling of school districts by enrollment size and Area Education Agency districts. Teachers were asked to complete questionnaires designed to collect data concerning: STS background, level …

Single Mothers And Their Sons: Everyday Communication As A Foundation For Relationships And Children's Coping With Divorce, Marcia Dixon

Iowa Journal of Communication

That divorce is on the rise is a well known fact. Also well documented is the rise in single parent households due to divorce and other factors. Although several researchers have studied the effects of divorce upon children (Hetherington, Stanley-Hagan & Anderson, 1989; Tschann, Johnston, Kline, & Wallerstein, 1989), there have been few studies of the naturally occurring interaction between single parents and their children. This is no longer acceptable, not only because of the developing clarity of the work on divorce and single parent families, but also because of recent developments in methodology that make it possible to learn …

Ritual As Constructor Of Reality In Mexican Families, Mario Andujo-Licón

Dissertations and Theses @ UNI

The purposes of the present research are: {a) to discover the patterns of communication involved with rituals in the Mexican family, {b) to describe the function of ritual in the construction of reality, (c) to research the functions of ritual in the Mexican family, and (d) to determine the concept of family in the Mexican middle class. The data for this research were obtained using field research methods (interviews and observations), with 10 middle-class Mexican families from Chihuahua, Chihuahua. In this research, it was possible to observe two kinds of rituals: rituals by function and rituals by time. The first …

Determining The Effects Of Environmental Issues Instruction On Iowa Teachers, Paul P. Torbert

Dissertations and Theses @ UNI

The purpose of this study was to determine the effectiveness of the Environmental Issues Instruction (eii) program. The study utilized the pre-experimental one-group pre-test post-test survey design with a retrospective pre-test. Statistical analysis of four issue topics revealed 198 participants attained two-tailed probability levels less than the .01 level of significance. Analysis of teacher grade levels revealed kindergarten through eighth grade teachers attained two-tailed probability levels less than the .01 level of significance. Ninth through twelfth grade teachers also attained two-tailed probability levels less than the .01 level of significance with one exception. The researcher concludes that the Environmental Issues …

The Impact Of Employee Pregnancy On Performance Appraisal Ratings And Salary Recommendations, Debra K. Kettner Damge

Dissertations and Theses @ UNI

This study explored the influence of pregnancy on evaluative ratings and recommendations of salary increase in a paper and pencil performance appraisal exercise. Research relating to the status of women in employment, the performance appraisal process, bias in employment decision making toward women and persons with disabilities, and reactions toward pregnancy was examined. It is suggested that women who experience pregnancy during employment, especially in male sex-typed fields, may be negatively evaluated and compensated, relative to women who experience non-sex-typed medical conditions. Subjects were members of a professional human resource association and undergraduate students majoring in business. Subjects were given …

Gender-Related Differences In Adolescents In The Study Of Heat Transfer, Linda L. Norris

Graduate Research Papers

As we approach the year 2000, males and females in the United States differ markedly in their representation in science -related careers. Although women comprise nearly 48% of the pool of professional workers, they represent only 25% of all scientists (Martinez, 1992). The influences and direct causes of gender differences in scientific aspiration and achievement are many, they are varied, and they are interactive. But students' attitudes toward and interest in science should not be overlooked. There is evidence that attitudes and interests might be shaped or influenced in some measure by experiences in the classroom.

Drama Education: A Teaching Strategy For Young Children Affected By Attention Deficit-Hyperactive Disorder, Janice C. Miller

Graduate Research Papers

According to many experts, Attention Deficit-Hyperactivity Disorder (ADHD) represents the most common developmental problem in school children (Coleman & Levine, 1988; Goodyear & Hynd 1992; Henker & Whalen, 1989). Children diagnosed with ADHD share a group of symptoms including: impulsiveness, inappropriate attention span, distractibility, and in some cases, hyperactivity (American Psychiatriatric Association [APA], 1987). Problems associated with ADHD result in chronic academic and social failure (Parker, 1990). This study is a concerted effort to help parents and teachers understand the difficulties children affected by ADHD experience and to present a strategy that will help the ADHD affected child achieve success.