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A Study Of Terminal And Advanced High School Science Courses In The State Of Iowa, Richard W. Gates

Iowa Science Teachers Journal

Information for the study was obtained through the use of the facilities of the Iowa Educational Information Center at The University of Iowa and through direct correspondence with the schools. Terminal science courses are those courses for non-college bound students, in addition to general science, biology, chemistry, earth science, and physics.

"What Does Membership Mean To The Elementary Teacher?", Gordon Wagner

Iowa Science Teachers Journal

At a recent in-service meeting in our school, an elementary teacher told me, "We have specialists in our school system who come into my classroom to teach art, music, and physical education. No one helps me teach science! What chance do I have keeping up with the changes in science when I only have a few credits in the first place?"

Let's Teach Geology As The Science Of The Earth, Chalmer J. Roy

Iowa Science Teachers Journal

The past decade has been marked by spectacular events in science and technology. The launching of Sputnik I in October 1957 was followed by public hysteria in the United States over the low estate of our education in science.

An Analogy Between The Cell And A Factory: A Teaching Technique, Paul A. Christiansen

Iowa Science Teachers Journal

Often in a study of the cell and its cellular processes such as photosynthesis, respiration, assimilation, and growth, biology students find it difficult to acquire an adequate idea of how these living processes interact. Synthesis of these separate processes into an organized whole is even more difficult to comprehend. This paper describes an analogy between a factory and the cell that has been found effective as a classroom discussion technique to more clearly illustrate what the cell must do to maintain itself and to divide.

Book Review: Biology, Its Principles And Implications

Iowa Science Teachers Journal

Book review: Biology, Its Principles and Implications, by Garrett Hardin

A Method Of Teaching Evolution In High School, Jerome J. Jackson

Iowa Science Teachers Journal

A little over a century ago, Alfred Russel Wallace and Charles Darwin formally presented the concept of evolution to the world. Since Darwin's publication of The Origin of Species, the theory of evolutionism has been attacked from various quarters, primarily by individuals without scientific backgrounds.

Nsta National Convention

Iowa Science Teachers Journal

The National Science Teachers Association will hold its 1968 national convention in Washington, D.C., March 29-April 2.

Raising Japanese Quail In The Laboratory, Kashmiri L. Arora

Iowa Science Teachers Journal

Within a few years, the use of Coturniz coturnix japonica, popularly known as Japanese quail, as a laboratory research animal has increased tremendously in the United States and also abroad. Currently, a variety of laboratories conducting investigations on different aspects of biological and related areas are using this bird as an experimental animal. We have learned from its use in both individual and class experiments that it is also a very useful animal for classroom experimentation.

Acceptance Of Tobacco Mosaic Virus By Established Tomato Root Cultures, Valerie Halverson

Iowa Science Teachers Journal

With Haberlandt's idea of cultivating individual cells in vitro, cell tissue culture began in 1902. Sporadic work was done in this area through the ensuing years. However, it was not until White's cultivation of tomato roots for an indefinite time span in 1934 that culture study became significant. Most work has been oriented toward the study of the growth and function of the cell. The research has included various nutritional and environmental studies. The proposition of this research is to use established technique for culturing tomato roots in order to go a step further, and use these cultures to study …

Notes On The Diatom Cylindrotheca Gracilis (Breh. Ex Kutz) Grun: Its Ecology And Distribution, C. L. Christensen, C. W. Reimer

Proceedings of the Iowa Academy of Science

The diatom Cylindrotheca gracilis (Breb. ex Kutz) Grun., considered by some as a "Brackish water" species, was found as a massive growth in isolated pools along Dugout Creek, Dickinson County, Iowa. Chemical analyses show the water to be high in S04, Mg., Ca., and low in Cl ions. Comparative data from other waters in the United States containing this species shows similar pattern of high conductivity suggesting that factors other than chlorides might be more critical for growth. United States distribution for this diatom includes: Maryland (brackish water), Ohio (fresh water) and Iowa (fresh water).

The Readability Of Bscs Textbooks, James C. Slaughter

Iowa Science Teachers Journal

Since they appeared, the BSCS materials have been widely acclaimed by science educators, and justly so. They represent a contribution toward the movement away from the traditional teaching patterns and toward the modern approach to teaching of science, that is as inquiry.

Fishes Of Little Wall Lake, 1967, Roger D. Albertson, Fred Schultz

Proceedings of the Iowa Academy of Science

Little Wall Lake, Hamilton County, Iowa, was dredged in 1953 to increase recreational facilities. Counts in June-August 1967 averaged about 580 man-hours of boating and water skiing per acre, mostly in the 65-acre dredged portion, but sometimes in other parts of the 273-acre lake. The lake also provides about 580 man-hours of fishing per week. Most of the fish are black bullheads (Ictalurus melas) and crappies (Pomoxis annutlaris and P. nigromaculatus), 5 to 6 inches long, and too small to be kept by most fishermen. The angler catch of largemouth bass (Micropterus salmoides), bluegills (Lepomis macrochirus), and other games fish …

Iieal Glucose Absorption After Jejunectomy In The Rat, William M. Kelly, Gordon W. Searle

Proceedings of the Iowa Academy of Science

Eleven male rats were subjected to jejunectomy under ether anesthesia with end-to-end intestinal anastomosis. After recovery they were allowed to eat ad libitum and growth was little impaired. An in vivo test of absorptive capacity for glucose was applied to the surviving ileum of the jejunectomized animals and to the corresponding segment of ileum in eleven untreated rats. The correlation coefficient for the body weight and the amount of glucose absorbed from a Krebs-Ringer-bicarbonate solution containing 16 to 17 μmol/ml (300 mg. percent) glucose in all animals was 0.45. Accordingly, absorption of glucose and of fluid volume was expressed as …

Notes On The Birds Of Costa Rica With Special Emphasis On Flocking, Brian E. Mlecko

Proceedings of the Iowa Academy of Science

Bird flocks were observed at Barba, Costa Rica, from November, 1967, until June, 1968. A total of 364 flocks was analyzed as to: whether they were single or mixed species flocks, species composition, habitat preference, vertical stratum preference, seasonal occurrence, and disassociation. Possible factors involved are discussed.

Information For Authors

Proceedings of the Iowa Academy of Science

No abstract provided.

The Ias Bulletin, V2n1, January 1968, Iowa Academy Of Science

IAS Bulletin

In this issue:

--- Spring Meeting Plans Progressing
--- General Instructions for Program Participants
--- 1965 Proceedings Distributed; 1966 and 1967 on the Way
--- Authors Please Note
--- ISTS Regional Meetings Planned
--- Call for Nominations for Outstanding Teacher Awards
--- Third Articulation Conference Planned
--- Section Interests of the Academy Members
--- Academy Representatives Attend AAAS Meeting in New York
--- Message from the Executive Secretary to all Members

University Catalog 1968-1969, University Of Northern Iowa

UNI Programs and Courses Catalogs

Table of Contents

University Calendar ... 4-5
The University and Its Program ... 6
University Map ... 8-9
University Terminology ... 10
Questions and Answers ... 12
Steps in Preparing for Admission ... 14
General Information ... 16
Student Residence ... 16
Student Services ... 18
Extracurricular Activities ... 20
Student Financial Aid
Employment, Loans, Scholarships ... 24
University Facilities and Educational Services ... 27
Extension Service ... 30
University Policies ... 33
Admission Procedures ... 33
Enrollment and Registration ... 40
Fees Schedule ... 41
Curricula ... 50
Undergraduate Curricula ... 54
Curriculum Adjustments for Transfer Students ... 64 …

Science Education In The Middle Or Junior High School Grades, Robert H. Carleton

Iowa Science Teachers Journal

The following article has been condensed from a review paper which Mr. Carleton prepared as a basis for a seminar which he was invited to lead at the Third Annual International Curriculum Conference in Oxford, England, in September 1967. Mr. Carleton's editorial in this issue of TST was inspired by the program of the Curriculum Conference.

Your Endangered Heritage And Your Children, Arnold O. Haugen

Iowa Science Teachers Journal

Keynote speech before the Iowa Junior Academy of Science, April 21, 1967, Drake University, Des Moines, Iowa.

A Guide To Science Reading

Iowa Science Teachers Journal

This is a comprehensive, annotated guide to more than 900 paper-bound science books in each of fifty-four scientific and mathematical categories.

A Dna Extract From Grocericus Storeii, Roger Volker

Iowa Science Teachers Journal

A simple, but accurate DNA model can be constructed by students, working in groups of two, from common grocery store materials.

Letter To The Editor, William W. Berg

Iowa Science Teachers Journal

I feel moved to call to your attention an item from Mr. Jackson's article in the February issue of The Iowa Science Teachers' Journal, "A Method of Teaching Evolution in High School." Though it is not the major area of the article's discussion, the author's treatment of the Earth's origin irritated me.

Fortifying Laboratory Inquiry Through The Use Of Scientific Articles, Bernard W. Benson

Iowa Science Teachers Journal

Using scientific articles in teaching is in itself no innovation. Baumel and Berger (1965) provided an excellent approach to this task. I find no argument with the format they proposed. However, I do question their statement which follows concerning student outcomes from such experiences.

The Overhead Projector As An Aid To Laboratory Instruction, Larry L. Schenken

Iowa Science Teachers Journal

In many cases the science teacher overlooks the possibility of using the overhead projector during laboratory sessions. Projectors often are covered with dust jackets and shoved into a comer like some unwanted piece of old furniture as soon as a lab activity is started. With a bit of planning these machines may become an integral part of almost any laboratory experience.

Movements And Daily Activities Of Fox As Determined By Visual Observations And Radio Tracking, Roger A. Allan

Proceedings of the Iowa Academy of Science

Movements and daily activities of the red fox (Vulpes fulva) were studied by visual observation and radio tracking in Buena Vista County, Iowa. Five fox were trapped with steel jump traps. Before release, three of the trapped fox were immobilized with a commercial tranquilizer to enable attachment of an ear tag and a collar-type transmitter on each fox. Range of the radio equipment when field tested showed an effective range of just under one fourth mile. The diameter of the loop antenna on the receiver was critical, and probably indirectly contributed to the death of one fox. Two juvenile fox, …

Effects Of Megestrol Acetate, A Progestin, On Female Rats, Lenore Southam

Proceedings of the Iowa Academy of Science

Silastic (dimethylpolysiloxane) capsules containing megestrol acetate (6- methyl-17-∝-acetoxypregna-4, 6- diene-3, 20-dione) were implanted subcutaneously in mature female rats. The effects of megestrol on the ovary, on fertility, on body weight, on adrenal weight, and on physical activity were observed. Megestrol acetate did not inhibit ovulation or fertility, and did not reduce ovarian weight; thus it did not have an anti-gonadotrophic effect at the dosages used. It affected vaginal cytology in a typical progestational fashion producing a constant diestrus or mixed cell smear. Body weight increased during treatment and remained fairly constant after treatment stopped. Adrenal weight decreased during treatment and …

Discrimination Weighting On A Multiple Choice Exam, Timothy J. Gannon, Thomas Sannito

Proceedings of the Iowa Academy of Science

A multiple choice test (59 items) was given to 141 sophomore males as a final examination in General Psychology. The students were required to indicate their degree of confidence on each item by writing to the left of their answer a 1 (pure guess), a 2 (some guessing-some certainty), or a 3 (complete certainty). The scoring involved making the confidence values positive or negative according to whether the selected answers were correct or incorrect. Three scoring procedures were then compared by correlation techniques to determine if there were any major shifts in student ranking. It was found that by scoring …

A Comparison Of Two Vannella Species, Robert F. Mote

Proceedings of the Iowa Academy of Science

Two species of Vannella from a freshwater pond were cultured in distilled water, alfalfa, rice medium and described. Both species had a cyst form, radiate form, and trophic form. One, Vannella multimorpha sp. nov., was distinct in that large uni- and bi-nucleated Vannella were formed during the life cycle. From the large trophic Vannella multimorpha small amoebae buds were developed. Illustrations of the life cycle and microphotographs of this new species are represented.

Some Coelozoic Myxosporida From New Zealand Fishes Ii. On A New Genus Of Myxosporida, Auerhachia, Paul A. Meglitsch

Proceedings of the Iowa Academy of Science

Auerbachia, a new genus of Myxosporida, is characterized. Two new species, belonging to this genus, are described. Auerbachia anomald n. sp. is reported from the gall bladder of Genypterus blacodes, and Auerbachia monstrosa n. sp. from the gall bladder of Coelorhynchus australis. All infected hosts were taken by trawler working out of Wellington, New Zealand.

Distribution And Habitat Of The Red Squirrel, Tamiasciurus Hudsonicus, In The North Central States, G. Robert Lynch, G. Edgar Folk Jr.

Proceedings of the Iowa Academy of Science

A survey of the distribution and habitat of the red squirrel (Tamiasciurus hudsonicus) was conducted in northern Iowa, southern Minnesota, and Wisconsin. The results indicate that the present range of the red squirrel in Iowa covers the north central counties of the state, and is considerably smaller than that given in earlier surveys. The Iowa red squirrel lives in immature hardwood forests near rivers and lakes. If mature trees arc present, they are used for nesting and caching food. The preferred foods of the Iowa red squirrel are the black walnut (Juglans nigra) and the butternut (Juglans cinerea). In Wisconsin …