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Performance Of S1 And Half-Sib Family Composites Of Iap3br(M) Random-Mating Grain Sorghum Population, T. F. Kwolek, R. E. Atkins, O. S. Smith

Proceedings of the Iowa Academy of Science

Performance of S1 and half-sib (HS) family composites from the random-mating sorghum (Sorghum bicolor L. Moench) population IAP3BR(M) was evaluated in six environments in Iowa. Composites from C0 through C4 for both family types showed that mass selection for heavy 100-seed weight was effective for increasing seed size in the population. Grain yield also increased over cycles among HS bulks, but decreased in the S₁ bulks. Selection for large seed through four cycles resulted in fewer seeds/panicle in both family types, and in an increase in the means for days to midbloom and plane height. Inbreeding effects determined …

Annotated Bibliography Of Iowa Prairie Literature, Dean M. Roosa, James H. Peck

Proceedings of the Iowa Academy of Science

This bibliography contains 335 references by 244 authors on the prairies of Iowa. The references include the taxonomic, floristic, ecologic, physiologic, historical, and wildlife reports on the Iowa prairie. Each reference is annotated to clarify its title and to summarize the contributions or topics discussed.

Nesting Success And Feeding Habits Of Great Blue Herons On The Mississippi River Near Cassville, Wisconsin And East Dubuque, Illinois., Gerald W. Kaufmann, Edward T. Cawley

Proceedings of the Iowa Academy of Science

Nesting Great Blue Herons (Ardea herodias L.) were studied on Brinkman's Island near Cassville, Wisconsin and on Catfish Island near East Dubuque, Illinois during the breeding seasons of 1978, and 1980-1985. Eggshells and unhatched eggs dropped from nests indicated 94% (n = 1501) of the eggs hatched. Nests near Cassville and East Dubuque contained an average of 2.2 to 2.6 young sufficiently large to be visible from the ground and an average of 1.7 to 2.4 hatchlings survived to fledging, respectively. The larger heronry on Brinkman's Island fledged an average of 1.7 young per nest annually and continued to increase …

Editorial Board

Proceedings of the Iowa Academy of Science

No abstract provided.

The Development And Implementation Of High School English And Mathematics Subject Matter Requirements For Admission To The University Of Northern Iowa, Jean Schrader Lang

Graduate Research Papers

American colleges and universities are coming to grips with a problem regarding the admission of students direct from high school. Administrators, faculty members, parents and even students have voiced a concern that high school students are insufficiently encouraged to select college preparatory courses. Most colleges and universities have based admission decisions on high school grade point averages and college entrance examination scores. Therefore, many high school students have opted for less demanding courses, and for the relative ease of earning high grades, but subsequently enter postsecondary institutions with insufficient background in some critical subject matter areas (Estee, 1983).

Back Cover - Iowa Academy Of Science Officers And Directors

Proceedings of the Iowa Academy of Science

No abstract provided.

Report Comparing 1985 Summer Session With 1986 Summer Session At University Of Northern Iowa, Gerald D. Bisbey

History of Education Book Gallery

No abstract provided.

Trend Analysis For 1977-1986, Gerald D. Bisbey

History of Education Book Gallery

No abstract provided.

Distribution Of On-Campus Grades For Fall Semester 1986, Gerald D. Bisbey

History of Education Book Gallery

This report is the next in the sequence of such reports being sent each semester to give the University community information concerning grade distributions. These grade distributions are by instructional areas and/or programs rather than departments only. Thus areas such as Educational Media Center, Individual Studies, and Human Relations are also identified. By request, the Humanities and General Sciences areas have been retained with the appropriate departments.

Distribution Of On-Campus Grades For Spring Semester 1986, Gerald D. Bisbey

History of Education Book Gallery

This report is the next in the sequence of such reports being sent each semester to give the University community information concerning grade distributions. These grade distributions are by instructional areas and/or programs rather than departments only. Thus areas such as Educational Media Center, Individual Studies, and Human Relations are also identified. By request, the Humanities and General Sciences areas have been retained with the appropriate departments.

Trend Analysis For 1976-1985, Gerald D. Bisbey

History of Education Book Gallery

No abstract provided.

Iowa Academy Of Science Directory, 1986-87: Officers, Committees, And Membership Roster, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Board of Directors ... 4
Program Directors ... 5
Section Chairs ... 6
Section Vice Chairs ... 9
Committees ... 12
Award Recipients ... 29
Past Presidents ... 31
Membership Roster ... 32
Constitution and Bylaws ... 43
Editors ... 54
Meeting Dates ... 55

Leisure Book Reading Of Keokuk Middle School Students, 1985-1986, Barbara Miller

Graduate Research Papers

The problem for this study was a three-fold one. The study dealt with what Keokuk Middle School students chose to read, where middle school students got these materials and why middle school students chose to read what they read.

Preserving Natural Diversity In Iowa's Loess Hills: Challenges And Opportunities, Dean M. Roosa, Donald R. Farrar, Mark Ackelson

Proceedings of the Iowa Academy of Science

The Loess Hills of western Iowa, due to their extent and depth, are of national importance for geological reasons. They also harbor a large portion of Iowa's remaining biological diversity, the significance of which has been underscored by studies sponsored by the State Preserves Advisory Board during the past several years. A complex of rare species of plants and animals exist in the rugged terrain; many are Great Plains species which find their only Iowa stations in these Loess Hills. Management problems, such as rapid invasion of prairies by woody species, are manifest in this landform and must be addressed …

Back Cover - Iowa Academy Of Science Officers And Directors

Proceedings of the Iowa Academy of Science

No abstract provided.

Morphology Of The Labial Gland System Of The Mature Larva Of The Black Carpenter Ant, Camponotus Pennsylvanicus (Degeer), R. S. Petralia, C. F. Haut

Proceedings of the Iowa Academy of Science

The morphology of the labial gland system of mature larvae of Camponotus pennsylvanicus is described. Regions of the labial gland system (gland tubes, reservoirs, thin and thick portions of the paired ducts, and common duct) were examined with electron microscopy, and a comparison of organelle and cell morphology was made. The gland tubes secrete silk which is stored in the reservoirs. The final water and/ or ion content of the secretion may be modified by the paired ducts and common duct.

Editorial Board

Proceedings of the Iowa Academy of Science

No abstract provided.

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

Iowa Science Teachers Journal

No abstract provided.

Science Notes - Lantz Summer Awards For Graduate Study In The Sciences

Iowa Science Teachers Journal

The College of Natural Sciences of the University of Northern Iowa announces the availability of financial awards to pay tuition costs of graduate study during the 1987 summer session in the fields of biology, chemistry, earth science, physics, science and science education.

Science Notes - Course Guides For Model Rocketry

Iowa Science Teachers Journal

Estes Industries is now offering three course guides for teaching model rocketry. The course guide "Model Rocketry in the Elementary School" was written by Dr. Herbert Simmons of Western Kentucky University.

Science Calendar

Iowa Science Teachers Journal

No abstract provided.

Student Research - Electromagnetic Field Effects On Succor Creek Desert Shrubs, Sonya Folkman

Iowa Science Teachers Journal

There have been indications that exposure to electromagnetic fields produced by voltage power lines have permanent effects on living organisms. I found studies on electromagnetic field effects on rodents and humans, but there has been little research done with plants. The purpose of my study was to record any measurable effects on desert shrubs in an area of Succor Creek, Oregon, produced by an adjacent 500 KV power line.

Environmental Education Teacher And Student Needs: A Teacher Survey Identifies Problems, Motivational Factors And Desired Topics For Teacher Workshops And Student Groups: Part Two, Gail George

Iowa Science Teachers Journal

In order to identify teaching problems and student motivational factors and to determine which environmental topics of study are perceived to be of greatest importance for grades 4-12, the Iowa Conservation Education Center (ICEC) conducted a survey of Iowa science teachers. The background of the teachers who responded to the survey and their perceived needs for student groups were described in a recent issue of ISTJ]. The needs for teacher workshops will be presented in this article.

The Iowa Science Teachers Fall Conference, 1986, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

--- Keynote Speaker: Dr. Carolyn Sumners
--- Sessions
--- Registration Form

Research Activities At The University Of Northern Iowa, July 1, 1984 To June 30, 1986, University Of Northern Iowa. Office Of The Graduate College.

History of Education Book Gallery

This is the second of a proposed series of biennial reports which attempts to summarize some of the research and creative activity of the faculty, students, and research units at UNI. To be included, the activity must have been conducted between July 1, 1984 and June 30, 1986. Data have been derived from a number of offices: grants and contracts, commencement programs submitted by the Registrar, publications in the President's Bulletin, Academic Deans, and the Graduate College. Most of the data are presented in table form and are self explanatory.

Geology Of The Loess Hills Region, E. Arthur Bettis Iii, Jean C. Prior, George R. Hallberg, Richard L. Handy

Proceedings of the Iowa Academy of Science

The narrow ridges and steep bluffs which extend in a narrow band along the Missouri Valley form the Loess Hills region. These bluffs stand in sharp contrast to the flat-lying Missouri River floodplain. The unique ridge forms are composed of thick accumulations of late Wisconsinan wind-blown silt (loess). Older Quaternary deposits as well as Cretaceous and Pennsylvanian bedrock outcrop beneath the loess in the region. The intricate texture of the topography results from the combined effects of eolian deposition, fluvial erosion, and mass-wasting. Physical properties of loess allow it to maintain nearly vertical faces when exposed. These properties also produce …

The Design Of Potential Anti-Parkinsonian Drugs: What Is The Dopaminergic Pharmacophore In Ergot Alkaloids?, Joseph G. Cannon

Proceedings of the Iowa Academy of Science

The problem of defining structural similarities between apomorphine and certain ergot alkaloid derivatives, two chemically dissimilar types of drugs having similar pharmacological effects, is addressed by considering the three-dimensional geometry of the molecules. Conformational analytical concepts can be used to design new chemical entities and to assess structure-activity relationship hypotheses, and indeed this strategy has led to synthesis of new categories of potentially clinically valuable agents. Some conclusions are presented with respect to the combinations of atoms within the molecules in various chemical categories of dopaminergic agonists, which are responsible for the observed pharmacological effects. On the basis of these …

Fish Associated With Dikes, Revetments, And Abandoned Channels In The Middle Missouri River, Mark B. Sandheinrich, Gary J. Atchison

Proceedings of the Iowa Academy of Science

Fish associated with dikes, revetments, and abandoned channels along the Iowa-Nebraska portion of the Missouri River were collected by seining, electrofishing, and hoop netting in June, August, and October 1983. Samples collected by seining dike fields and abandoned channels were' dominated by Cyprinidae and Centrarchidae. Electrofishing samples were dominated by flathead catfish (Pylodictus olivaris), gold eye (Hiodon alosoides), common carp (Cyprinus carpio), river carpsucker, (Carpiodes carpio), gizzard shad (Dorosoma cepedianum), and blue sucker (Cycleptus elongatus) in dike fields and revetted banks and by gizzard shad, river carpsucker, and bigmouth buffalo (lctiobus cyprinellus) in the abandoned channels. …

Back Cover - Iowa Academy Of Science Officers And Directors

Proceedings of the Iowa Academy of Science

No abstract provided.

First Record Of Freckled Madtom (Noturus Nocturnus) In Iowa, Vaughn L. Paragamian

Proceedings of the Iowa Academy of Science

This is the first record of freckled madtom in Iowa and is one of the northern most records. On 30 August 1984, five freckled madtoms were collected from the English River, Washington County. The specimens ranged from 46 to 95mm in total length and mean weight of 3.3g. Estimate of standing stock was 0.807 Kg/ha with a density of 44 fish/ha.