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Biological Modeling: A Program To Calculate The Input From Observations On The Output, James O. Osburn

Proceedings of the Iowa Academy of Science

In the usual situation, a model is constructed, and coefficients are adjusted until the predicted response to a known stimulus agrees with the observed response to the same stimulus in the real situation. Then the model can be used to predict the response to other stimuli. The reverse situation, while it is of practical importance, has not received much attention. This is the problem of finding the stimulus which would produce an observed response. A published attempt to solve this problem contains a fundamental error. The LaPlace transform method is shown to be applicable, but it is difficult to implement. …

Editorial Board

Proceedings of the Iowa Academy of Science

No abstract provided.

Annual Report 1972-73 And Membership Directory, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Minutes of the Annual Business Meeting --- 4
Report of the Executive Secretary --- 10
Report of the Treasurer --- 21
Report of the Finance Committee --- 23
Report of the Membership Committee --- 25
Report of the Publications Committee --- 26
Report of the Recognition and Awards Committee --- 27
Report of the Social Implications Committee --- 28
Report of the Student Programs Committee --- 32
Report of the Librarian --- 35
Report of the Articulation Committee --- 36
Constitution, Bylaws, and Articles of Incorporation --- 37
Constitution --- 38
Bylaws --- 42
Restated Articles of Incorporation --- …

Notes On An Iscs Visit, Vincent N. Lunetta

Iowa Science Teachers Journal

In late January, 1973, I had the opportunity to work with persons in Tulsa, Oklahoma in the evaluation of their ISCS-Level I program. Some of the local innovations in Tulsa, I believe, are noteworthy enough to be brought to your attention. Included below are extracts from a letter I wrote after my visit to Mr. A. Q. Polk, Supervisor of Science in the Tulsa Public Schools. The notes cover ISCS program evaluation and thoughts relating to my school visits.

Individualized Instruction? I Tried It And It Worked!, Michael Gross

Iowa Science Teachers Journal

"Individualized instruction? — I tried it and it didn't work!" This is the statement that is frequently heard at professional meetings and in visiting with teachers. Upon further examination, it is usually found that the individuals making the statement only tried an individualized approach for a very short period of time. The frustrations they had experienced were usually that l) most kids sat around doing nothing, 2) it was impossible to manage the paperwork in keeping track of where each student was, and 3) the time required to develop individualized units and materials just wasn't worth the reward in terms …

Secondary Science Training Program Enrichment For High School Students, Edward L. Pizzini

Iowa Science Teachers Journal

We live in an environment where the success of many educational programs are directly proportional to the amount of external funds appropriated. When federal funding for a program dries up, unfortunately, the program may come to an end. This end is in sight for many of the Secondary Science Training Programs sponsored by the National Science Foundation throughout the nation. However, at the University of Iowa, the SSTP programs are i n t he process of expanding beyond a firm foundation.

Free Materials

Iowa Science Teachers Journal

The Science Education Center at the University of Iowa is now making a number of printed teaching aids available to science teachers.

Winter Ecology In Action

Iowa Science Teachers Journal

Over sixty students and teachers were actively involved in the IJAS sponsored Winter Field Survey at Springbrook State Park. The Field Survey was coordinated by Frank Starr, Field Program Director of IJAS, and Dr. Eugene Brady from Perry Community High School.

Stom Meets

Iowa Science Teachers Journal

The Science Teachers of Missouri's spring meeting will be held at Northeastern Missouri State University (Kirksville) May 18-20.

Some Reasons For Not Working Toward A Humanistic System

Iowa Science Teachers Journal

There is only one acceptable excuse for not changing: If you really are comfortable with what you are doing and if your students tell you they are really comfortable, then don't change. Ask your students and see how they feel. If you say you'd like to change but can't for any of the reasons above, you're copping out!

Geology Of Iowa Filmstrips Available, Wayne I. Anderson

Iowa Science Teachers Journal

The Geological Society of Iowa, in cooperation with the Iowa Geological Survey, has developed and produced three filmstrips dealing with the geology of Iowa.

Uni Fall Symposium

Iowa Science Teachers Journal

On November 1 and 2, the University of Northern Iowa will host their annual fall research symposium. The theme is Science and Survival.

Project Assist: A Plan Of Action, Daniel S. Sheldon

Iowa Science Teachers Journal

A plan of action to improve mathematics, social science, and science education has emerged as a result of over two years of meetings and planning conferences with school personnel representing all academic levels of education in Iowa. In addition, a seven-week Leadership Development Conference (LDC) was held this summer at The University of Iowa involving the regional coordinators and many of their "team" chairmen representing one of the various emphases of Project ASSIST, i.e., in-service and pre-service programs, community involvement, assessment, and student programs. Seventeen coordinators and over thirty program chairmen participated in the LDC.

Back Cover - Iowa Academy Of Science Board Of Directors And Section Chairmen

Proceedings of the Iowa Academy of Science

No abstract provided.

University Of Iowa Upstep Summer Institute

Iowa Science Teachers Journal

UPSTEP is an activity sponsored by the National Science Foundation to explore new and more effective ways of preparing persons to become highly qualified and competent teachers of science.

Physics Teachers

Iowa Science Teachers Journal

The spring meeting of the Iowa section of the American Association of Physics Teachers will be held at Grinnell College.

Teaching For Affective Learning, Gary E. Downs

Iowa Science Teachers Journal

During the last ten years, many innovations have been aimed at reconstructing science education from kindergarten through high school. These efforts have produced more up- to-date information which was supposed to reflect more nearly the scientific enterprise as it is today. Gallagher (1971) contends that the course-content improvement projects have failed to show this, and they have failed to show that science is a significant cultural force.

Biology Convention Offers Something For Everyone

Iowa Science Teachers Journal

"Competitive Ideas in Biology" marks the theme of the 1973 National Association of Biology Teachers Convention to be held October 11-14 at the Chase Park Plaza Hotel in St. Louis.

The Experimental Determination Of The Eddy Current Effects On The Nuclear Magnetic Resonance Of Aluminum Wires, Mark Allen Butterworth

Dissertations and Theses @ UNI

An experimental determination has been made of the eddy current effects on the nuclear magnetic resonance lineshapes of Al²⁷ wires. Eddy currents in the metal result from the applied radio frequency (r-f) field used to obtain resonance. Due to the induced eddy currents, this r-f magnetic field is attenuated and its phase is shifted as it progresses toward the center of the sample. A quantity defined as the skin depth is a measure of this attenuation. As a result of the attenuation and phase shift of the r-f magnetic field, the resultant lineshape of a given mode of the resonance …

Back Cover - Iowa Academy Of Science Board Of Directors And Section Chairmen

Proceedings of the Iowa Academy of Science

No abstract provided.

Back Cover - Iowa Academy Of Science Board Of Directors And Section Chairmen

Proceedings of the Iowa Academy of Science

No abstract provided.

Editorial Board

Proceedings of the Iowa Academy of Science

No abstract provided.

Gas Laws In Freshman Chemistry: A Laboratory Experiment, Theodore S. Prokopov

Proceedings of the Iowa Academy of Science

The study of gaseous state of matter is included in the programs of Freshman Chemistry and in every textbook at this level. Yet, only few laboratory manuals include an experiment describing the apparatus and procedure for studying Boyle's Law. Experiments describing Charles'-Gay Lussac's Law and Combined Gas Laws usually are not included in laboratory manuals, owing to the fact that manufacturers of scientific apparatus do not offer any such apparatus. In order to eliminate this gap in study of gaseous state, in the laboratory at Upper Iowa College an apparatus is used which enables one to study the relationship of …

Back Cover - Iowa Academy Of Science Board Of Directors And Section Chairmen

Proceedings of the Iowa Academy of Science

No abstract provided.

Groundwater Flow Patterns Of The Ames Aquifer, R. R. Van Der Ploeg, Don Kirkham, L. V. A. Sendlein

Proceedings of the Iowa Academy of Science

Extensive field studies have indicated that the Ames aquifer (at Ames, Iowa) approximates a confined horizontal aquifer of uniform thickness and height. The aquifer is partly fed through the channel beds of two surface streams, the Skunk River and Squaw Creek. Part of the boundary of the Ames Aquifer is formed by a till layer that can be considered impervious. Pumping tests have indicated that the Skunk River and Squaw Creek maintain nearly a constant head distribution along the boundaries of the aquifer while the aquifer is pumped. A theoretical solution is presented that yields the well discharge, the hydraulic …

Physics Of Sound And Music, William R. Savage

Proceedings of the Iowa Academy of Science

A course in introductory acoustics which stresses the basic aspects of sound generation and propagation is described. The topics include the properties of sound waves as they are evident in the voice, musical instruments, and noise sources. The factors which influence the distribution of sound and perception are included in the course. Various means of recording and reproducing sound are included. The course serves a general audience which includes music and speech pathology students for whom the course is required.

Editorial Board

Proceedings of the Iowa Academy of Science

No abstract provided.

In Memoriam: Don Lewis, 1902-1972

Proceedings of the Iowa Academy of Science

Don Lewis, born in Maricopa County near Mesa, Arizona, in 1902, earned his M.A. and Ph.D. degrees at The University of Iowa, and joined the faculty of the Department of Psychology in 1933. Except for short periods as an instructor at Colorado State College, University of Utah, and New York University, Professor Lewis spent his entire professional career at The University of Iowa. While on leave from the University from 1942-44, Professor Lewis served the War Department and Army Air Force as Director or Assistant Director of Operations and of Training Research Groups; he received the Army Air Force commendation …

Shear Strength As A Measure Of Soil Consistency, G. A. Madenford, W. H. Scholtes

Proceedings of the Iowa Academy of Science

Agronomic soil consistency terms have been evaluated using shear strength as a unit of measure. The Torvane vane shear strength device was employed to measure shear strength on pedogenic profiles developed in several parent materials and on unconsolidated substratas of till. Correlations were then established between the consistency class and shear strength. The shear device is capable of placing a numerical value on soil consistency classes. Variations in consistency were controlled by soil structure, bulk density, texture and organic matter. The device can easily be carried in the field and can reduce bias in the investigator's consistency estimations.

Editorial Board

Proceedings of the Iowa Academy of Science

No abstract provided.