Science and Mathematics Education Commons^™

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Mass Selection For Adaptation In Antigua Maize (Zea Mays L.) Composite, F. M. San Vicente, A. R. Hallauer

Journal of the Iowa Academy of Science: JIAS

Tropical maize (Zea mays L.) germplasm has had limited use in temperate areas because of photoperiod sensitivity. Antigua germplasm from the island Antigua was introduced co Iowa because of its resistance to important pests of maize and its heterosis exposed m crosses with ocher tropical varieties. Mass selection procedures were used to adapt the Antigua Composite germplasm co Iowa conditions. After. Six cycles of mass selection for earlier silk emergence, the selected Antigua Composite flowered 17 days earlier than the original composite. Grain yield and ocher agronomic traits of the adapted scram of Antigua were similar co chose of adapted …

Well-Water Quality Data From A Volunteer Sampling Program: Audubon County, Iowa, L. S. Seigley, G. R. Hallberg, P. R. Walther, G. A. Miller

Journal of the Iowa Academy of Science: JIAS

This study presents the results of a countywide volunteer sampling of private well-water. Volunteers collected 231 well-water samples in Audubon County for nitrate-nitrogen (NO₃,-N) and total coliform bacteria analyses during September 1988. Questionnaires were completed at all sites to document well construction, age and depth of well, well placement relative to septic system, barnyard/feedlots, location of chemical mixing/tank rinsing, and presence of abandoned wells.

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 …

Journal Of The Iowa Academy Of Science Submission Form And Instruction Sheet

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

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.

Science Notes - Grants Available For Physiology Research

Iowa Science Teachers Journal

The American Physiological Society (APS) is sponsoring a program to provide high school science teachers with experience in physiology research. Each grant supports the involvement of a high school teacher in an ongoing research program at an APS member's laboratory.

Science Notes - Bonnett Receives Conservation Achievement Award, Jonna M. Higgins

Iowa Science Teachers Journal

Barbara Bonnett was recently named a 1993 Conservation Achievement Award winner by the Iowa Wildlife Federation for her work in Conservation Education. Bonnett, a Burlington elementary school teacher, is currently an Associate Director of the Environmental Issues Instruction (eii) program, which builds ecological foundations in order to prepare students to take responsible environmental action.

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

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

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.

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

A Gravity Investigation Of The Fayette Structural Zone And Surrounding Area, Northeast Iowa, Richard L. Kellogg, Christopher Meinen

Journal of the Iowa Academy of Science: JIAS

A gravity survey was conducted over approximately 2600 square kilometers of northeast Iowa. The survey was undertaken to provide detailed gravity coverage at approximately one mile intervals and to investigate the sources of gravity anomalies in the study area. An additional objective was to verify with gravity data the presence of the Fayette Structural Zone, previously identified on the basis of magnetic linears. Four hundred and twenty-seven gravity stations were occupied and data from these stations combined with extant data from the Geological Survey Bureau of the Iowa Department of Natural Resources to produce the gravity interpretation. A Bouger gravity …

Index For Volume 100

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.

Mathematics Anxiety: A Study Of Its Causes As Proclaimed By Educational Research, Jennifer Rupp

Presidential Scholars Theses (1990 – 2006)

In today's fast-paced, high-stress society, feelings of anxiety have become commonplace; even normal. Of the many anxieties that have been found to affect people, one that I, as a future math teacher, have become very concerned about is mathematics anxiety (also called mathphobia). Even now, during my college career, I have noticed an alarming number of people around me (colleagues, co-workers, relatives, roommates, etc.) who claim to be "terrified" of math. Listening to their explanations as to why they find math so threatening has made me realize the importance that math anxiety will have in my career.

For these reasons, …

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.

The Relationship Between Middle School Students' Knowledge Of The Concept Of Variable And The Use Of Concrete Manipulatives, Maureen E. Busta

Dissertations and Theses @ UNI

Algebra is a difficult subject for a number of high school students. One of the major concepts involved in the learning of algebra is the use of variables. The purpose of this study was to investigate the effect of the use of concrete manipulatives on middle school students' knowledge of the concept of variable and attitudes toward mathematics.

An experimental study was conducted involving 335 students and 13 teachers. Teachers volunteered to be in the treatment or comparison group. Teachers in the treatment group were trained in the use of Hands-On Equations and used the materials in their classrooms for …

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. …

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 …

104th Session Iowa Academy Of Science Awards Luncheon, April 24, 1992, Iowa Academy Of Science

Iowa Academy of Science Documents

Program:

--- Introduction of Head Table - Luther Erickson, President, Iowa Academy of Science
--- Recognition of students participating in various statewide activities; STARS Awards - Larry Schwinger, Chair, Student Programs Committee
--- Presentation of scholarship winners and 1993 AJAS representatives - Peggy Tilgner, Wartburg College, Waverly
--- Presentation of Excellence in Science Teaching Awards - Roy Unruh, Director, ESTA Program

The Iowa Academy Of Science President's Banquet, 104th Session, Iowa Academy Of Science

Iowa Academy of Science Documents

Program:

Introductions
Awards:
Distinguished Fellow: Earl G. Hammond
Distinguished Service: James L. Christiansen
President's Address - outgoing President Luther Erickson
Response - President William A. Deskin
General Sessions II - Loren M. Winters, "Observing High Speed Motions with Electronic Flash"

The Annual Meeting Of The Iowa Academy Of Science April 24-25, 1992 [Program, 104th Meeting], Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Program Summary --- 5
General Session Speakers --- 9
Awards --- 12
Distinguished Fellow --- 12
Distinguished Service --- 13
Symposia Programs --- 14
Poster Session --- 16
Campus Map --- Centerfold
Section Programs --- 18
Agricultural Sciences --- 18
Anthropology --- 20
Botany --- 21
Cellular & Molecular Biology --- 22
Chemical Education --- 26
Chemistry, Inorganic --- 26
Chemistry, Organic --- 27
Conservation --- 29
Earth Science Teaching --- 30
Elementary Science Teaching --- 30
Engineering --- 32
Geology --- 34
Linguistics --- 35
Nursing --- 36
Physics --- 37
Physiology --- 39
Psychology --- 40
Science …

Program Abstracts, 104th Session, Iowa Academy Of Science, April 24-25, 1992, Iowa Academy Of Science

Iowa Academy of Science Documents

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