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Program Abstracts, 110th Session, Iowa Academy Of Science, April 24-25, 1998, Iowa Academy Of Science

Iowa Academy of Science Documents

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

The Annual Meeting Of The Iowa Academy Of Science April 24-25, 1998 [Program, 110th Meeting], Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Program Summary -- 3
General Session Speakers -- 5
Awards -- 8
Symposia Programs -- 9
Poster Session -- 10
Map -- Centerfold
Section Programs/Special Sessions -- 14
Agricultural Sciences -- 14
Anthropology -- 15
Botany -- 15
Biology: Cellular, Molecular, & Microbiology -- 16
Chemical Education -- 17
Chemistry: Inorganic, Analytical & Physical -- 17
Conservation -- 18
Engineering -- 19
Geology -- 23
Physics -- 24
Physiology -- 25
Psychology/Linguistics -- 27
Science Teaching -- 28
Zoology -- 28
Local Arrangements Committee -- 29
IAS Officers & Directors -- 29
IAS Annual Meeting Committee -- 30
Future …

110th Session Iowa Academy Of Science Awards Luncheon, April 24, 1998, Iowa Academy Of Science

Iowa Academy of Science Documents

Program:

--- Introductions - Richard Lampe, President
--- Recognition of students participating in various statewide activities - Ed Rezabek, Chair, Student Programs Committee
--- Presentation of scholarship winners and 1999 AJAS representatives - Peggy Tilgner, Director, Iowa Junior Academy of Science
--- Presentation of Excellence in Science Teaching Awards - Peg Steffen, Director, ESTA Program

Iowa Academy Of Science President's Banquet [110th Session], Iowa Academy Of Science

Iowa Academy of Science Documents

Program:

Introductions
Awards:
Distinguished Fellow: Richard W. Arnold
Distinguished Service: Paul E. Rider
Distinguished Iowa Science Teacher: Charles D. Drewes
President's Address - Richard Lampe
Response - James Christiansen, President-Elect
General Sessions II - Bob Becker, "Chemical Demonstrations to Knock Your Socks Off"

Iowa Academy Of Science 110th Annual Meeting [1998]: Advance Program, Iowa Academy Of Science

Iowa Academy of Science Documents

Contains information about the schedule and presentations for the 1998 annual meeting of the Iowa Academy of Science.

Iowa Academy Of Science Membership Directory, 1998-99, Iowa Academy Of Science

Iowa Academy of Science Documents

Table of Contents:

Editorial Board, Journal ... 5
Committees ... 6
Sections ... 18
ISTS Regional Directors ... 22
Awards of Merit ... 24
Excellence in Science Teaching Awards ... 25
Past Presidents ... 26
Membership Roster ... 27
Corporate Sponsors ... 35

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Iowa's Changing Forest Resources, Steven E. Jungst, Donald R. Farrar, Michael Brandrup

Journal of the Iowa Academy of Science: JIAS

After a period of decline in area extending from the 1850s to 1974, Iowa's forest area increased between 1974 and 1990. Although the area increase is encouraging, it may be fleeting. In addition, changes in forest stand structure and forest ownership patterns along with other pressures may make it difficult to maintain healthy forest ecosystems in the future. Notes from the original land survey in Iowa coupled with information from U.S. Forest Service forest inventories make it possible to look at changes in forest area and forest tree types. Unfortunately, similar long-term data do not exist to make possible a …

Distribution And Ecology Of The Morels And False Morels Of Iowa, L. H. Tiffany, G. Knaphus, D. M. Huffman

Journal of the Iowa Academy of Science: JIAS

The distribution, time of fruiting and habitats of morels and false morels in Iowa were documented during a 10 year survey (1984-1993). Distribution maps for each species also include information from published reports and from herbarium records. The true morel genus, Morchella, is represented in Iowa by five species. Three of these species, M. deliciosa, M. esculenta and M. crassipes, are sometimes interpreted as segments of one large, extremely variable species. M. semilibera and M. angusticeps also occur. M. angusticeps, a black morel, has not been previously reported from Iowa. Four false morels, two species in each of two genera, …

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Cover - Perspectives On The Declining Flora And Fauna Of Iowa: A Symposium, Part 1

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

A Literature Review And Survey Of The Status Of Iowa's Terrestrial Flora, Deborah Q. Lewis

Journal of the Iowa Academy of Science: JIAS

A survey of Iowa's floristic literature and herbarium resources indicates that while there is not uniform coverage of plant groups and regions, a great deal is known about the Iowa flora. Taxonomic and floristic studies are ongoing, despite evidence of a decreased number of researchers with expertise and interest in Iowa's flora and changing emphases in academic research. Current knowledge is sufficient for the production of an Iowa Flora, and an Iowa Flora committee to initiate this project is proposed.

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Iowa's Wetlands, Present And Future With A Focus On Prairie Potholes, R. A. Bishop, J. Joens, J. Zohrer

Journal of the Iowa Academy of Science: JIAS

The vast prairie marsh-pothole complex that historically covered approximately 7 .6 millions acres in Iowa was reduced to less than 30,000 acres by 1980 when it was estimated that only 5,000 acres of prairie marsh and pothole habitat remained in private ownership. A bleak outlook for the future of wetlands was presented by Bishop (1981)." This outlook changed with the development of the North American Waterfowl Management Plan and the passage of two important pieces of legislation: the North American Wetlands Conservation Act and the Food Security Act of 1985. Protection of existing wetlands was afforded through the Swampbuster provision …

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Checklist Of Instructions For Authors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Iowa's Declining Flora And Fauna: A Review Of Changes Since 1980 And An Outlook For The Future, Neil P. Bernstein

Journal of the Iowa Academy of Science: JIAS

The status of Iowa's biodiversity was first summarized at a 1980 Iowa Academy of Science (IAS) symposium that was published in The Proceedings of the Iowa Academy of Science (Vol. 88, No. 1) in 1981. The 1980 symposium was updated in a recent IAS symposium, and the proceedings from this symposium are published, for the most part, in volume 105 of this journal. Most of the authors noted some positive trends, but, overall, species declines and habitat destruction remained a concern.

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Lithologic And Structural Interpretation Of Gravity Data, Northeastern Iowa, Curtiss J. Hella, Richard L. Kellogg

Journal of the Iowa Academy of Science: JIAS

A gravity survey was conducted over approximately 4600 square km of northeast Iowa. It was undertaken to provide detailed gravity coverage at approximately 1.6 km intervals and to model the source of several significant gravity and magnetic anomalies. 1,460 gravity stations were occupied in the survey area. Bouguer gravity and residual gravity anomaly maps were prepared, the latter using band-pass filter and trend-surface analysis techniques. The residual maps reveal that the large oval Bouguer gravity anomaly centered beneath Decorah can be traced to the southern border of the survey. Profiles crossing this feature were prepared from the Bouguer map and …

Awards And Recognition, Iowa Academy Of Science, 1998

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

What Do Young Children Know About Numerosity? : Implications For Teachers, Keely J. Beam

Graduate Research Papers

"Numerosity" is the ability to count a set of objects using the correct number names in the proper order. Fuson and Hall (1983) assert that the use of cardinal words is one measure of the development of number knowledge. Using words in a cardinal context indicates that children are beginning to understand the "manyiness" of objects. The use of cardinal words is one of the best indicators that a child is beginning to understand counting and the underlying principles involved.

Numerosity is a concept which children often, but not always, demonstrate with overt behaviors. Understanding cardinality and numerical order, develops …

Integrating Children's Literature And Mathematics In The Early Childhood Classroom, Jamie M. Christensen

Graduate Research Papers

"Historically there have been three reasons for groups to formally adopt a set of standards: (1) to ensure quality, (2) to indicate goals, and (3) to promote change. For NCTM, all three reasons are of equal importance" (The National Council of Teachers of Mathematics, 1989, p. 2).

Now, more than any other time in history, mathematical reform is essential in our school systems. The traditional mathematics curriculum was designed to prepare shopkeepers, farmers, and factory workers for occupations in the early 1900s. Some of those skills are still useful in today's society. However, as the new millennium approaches, our future …

Calculators In Middle School Mathematics Classrooms, Debra Lynn Kuehne

Graduate Research Papers

Calculators can be a catalyst for all mathematical learning. Arithmetic skills are necessary life tools. Doing mental math requires basic facts mastery with estimation skills. Using a calculator successfully and evaluating the answer requires an understanding of the necessary arithmetic processes and the ability to identify a reasonable solution.

Like all technology available in the K-12 school setting, calculators should be viewed as tools to facilitate learning and logical reasoning. Students need to be prepared for the jobs of the future, many of which occupations have not yet even been created. The motivation for learning any skill in life is …

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Managing Seedling Emergence Of Cuphea In Iowa, W. W. Roath

Journal of the Iowa Academy of Science: JIAS

Cuphea, a western hemisphere genus of some 260 species, has been proposed as a domestic source of medium-chain fatty acids. These fatty acids are used primarily in soap and detergent manufacture and are presently extracted from imported tropical oils or from petroleum. Considerable difficulty in obtaining consistent plant stands with direct seeding has been experienced at two Iowa locations. Trials were initiated in 1987 and continued through 1994 to test various treatments upon seedling emergence of C. laminuligera Koehne, C lanceolata Ait., and hybrid C. viscosissima Jacq. X C. lanceolata. These treatments included planting depths from 1.3 to 6.4 cm, …