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Life History Of The Quillback And Highfin Carpsuckers In The Des Moines River, David Vanicek

Proceedings of the Iowa Academy of Science

An age and growth study was made of 705 quillback, Carpiodes cyprinus, and 399 highfin carpsuckers, C. velifer, taken from the Des Moines River, Boone County, Iowa, from June 1 to August 24, 1960. The length-weight relationship, body-scale relationship and coefficient of condition of these two species are very similar, but the quillback is a larger and faster growing fish. Difficulty was encountered in distinguishing young quillbacks and highfins from the young of the other two species of carpsuckers found in the river.

White And Black Crappies In Clear Lake, Summer, 1960, Richard A. Neal

Proceedings of the Iowa Academy of Science

Studies of white crappie, Pomoxis annularis, and black crappie, Pomoxis nigromaculatus, showed a shift in the population in Clear Lake during the past 10 years from a dominance of black to white crappies. A decrease in the rate of growth of black crappies was shown for this period although the rate of growth of white crappies has remained constant. The food habits of white and black crappies were very similar. The three most important food items were Cladocera, fish, and insect larvae, in that order. Young-of-the-year samples indicated that the trend toward white crappies was continuing. Turbidity was suggested as …

Effects Of Floods On Mammal Distribution, Sherman A. Hoslett

Proceedings of the Iowa Academy of Science

Several species of small mammals are not found in suitable habitats on broad flood-plains of the Mississippi River Valley. In the narrow up-stream flood-plains of the river valley of Northeastern Iowa, some species remain in the flooded area; others migrate out temporarily. Floods, in this case, have only a temporary effect on local populations.

Wood Duck Roosting Flights At Paint Creek, Lowa, Dale Hein

Proceedings of the Iowa Academy of Science

Wood duck roosting flights were studied at a marsh near the mouth of Paint Creek, Allamakee County, Iowa, during late summer and fall of 1959 and 1960. Evening roosting flight counts were superior to morning counts for estimating roosting populations. Changes in times of flights and illumination associated with flights were noted as the season advanced. The roosting population built up to a pre-migration peak in mid-September. Counts fluctuated erratically after migration started about October 1, and the roost was abandoned in early November. Data collected at Paint Creek Roost were typical in general of those collected at the other …

Results Of The 1958 And 1959 Pheasant Hunter Survey, Richard C. Nomsen

Proceedings of the Iowa Academy of Science

Hunter questionnaire surveys were conducted in 1958 and 1959 to determine the number of pheasant hunters, the total number of birds killed, and the distribution of hunt-pressure in Iowa. A one percent random sample was selected from the current license files. Results indicated that 75.2 percent of the licensees hunted pheasants in 1958 compared to 74.6 percent in 1959. A total of 267,455 hunters bagged 1,548,564 ringnecks in 1958 and 238,903 hunters killed 1,070,285 birds in 1959. Forty to 44 percent of the total season kill occurred during the first two days of the season. Hunter success figures and post-season …

Wildlife Habitats On Iowa Farms Following Application Of Soil Conservation Practices, Sylvan T. Runkel

Proceedings of the Iowa Academy of Science

The U. S. Soil Conservation Service assists Iowa farmers to plan and apply soil and water conservation practices on farm land. Farmers themselves decide which practices they will apply. Almost all soil conservation practices affect wildlife. Most of them help by stabilizing land use patterns, increasing the ecotone, and adding or protecting herbaceous and woody cover. Iowa conservation farmers are making an important contribution by establishing and maintaining conservation practices beneficial to a varied and important wildlife population.

Conserving Iowa's Prehistoric Heritage, Marshall Mckusick

Proceedings of the Iowa Academy of Science

A hundred years of farming and relic hunting has destroyed much of Iowa's archeological resources. An active program of research is currently underway at the State University of Iowa in order to preserve these prehistoric remains before they are entirely lost. It will require a strenuous effort to salvage enough information to piece together the ten thousand years of Iowa's past. Current research emphasis is upon publishing reports and organizing the results of previous work throughout the state. After this phase of the program is completed a series of excavations will be made in different parts of the state to …

Problems Of Paleontological Preservation In Iowa, W. D. Frankforter

Proceedings of the Iowa Academy of Science

A brief review of vertebrate paleontological work in Iowa reveals an early utilization of fossils in Pleistocene studies followed by a lapse in collecting and research until revived during the past decade. Legal measures enacted to protect paleontological materials have, in the opinion of many paleontologists, resulted in numerous federal and state regulations which are unrealistic and a hindrance to scientific endeavor. Efforts to modify or remove federal rules and regulations governing fossils are discussed. Legal restrictions do not constitute the primary problems of paleontological conservation in many states, including Iowa. Instead, the problems are those of (1) public education …

The Measurement Of Temperature Change In An Adiabatic Expansion, Stephen A. Schoolman, David A. Mcblain

Proceedings of the Iowa Academy of Science

An experimental method for measuring the temperature change undergone by a gas during an adiabatic expansion is discussed. The experiment makes use of a thermistor as the temperature-measuring device. The procedure gives agreement within one to two percent of the theoretical values.

A Thin Cylindrical Shell Problem, Thomas R. Rogge

Proceedings of the Iowa Academy of Science

This paper considers the problem of a thin cylindrical shell sector clamped on two curved edges and one straight edge, free on the remaining straight edge and loaded by a load similar to a hydrostatic load. The method of solution is that of superimposing the solutions of three separate problems with appropriate boundary conditions.

Stationary Dislocations In Sodium Chloride As Possible Vehicles For The Electrical Conductivity Mechanism, Wendell Gayle Bradley

Proceedings of the Iowa Academy of Science

Pairs of crystals were grown simultaneously from melts of sodium chloride containing various amounts of divalent cation impurity. One of the crystals of each pair was grown from a distorted seed in an attempt to introduce extra dislocations into this crystal. The electrical conductivities of samples cleaved from each of the crystals were measured in a temperature range from 100°C to 300°C. A comparison of the results of these measurements indicated that there was a slight extra conductivity in the crystals grown from the bent seeds.

Oxygen Partial Pressure Sensor, George M. Heenan

Proceedings of the Iowa Academy of Science

The polarographic oxygen partial pressure sensor consists of two electrodes immersed in an electrolyte supported in a nylon case. The electrodes and electrolyte are separated from the atmosphere by a Teflon membrane. Oxygen passes through the membrane and is reduced at a noble metal electrode. This reduction produces a current proportional to the amount of oxygen present. At 100% oxygen the current is approximately 55 microamperes. Tests to determine the operating characteristics are discussed.

The Physical Science Course:Past, Present, And Future, R. Ray Haun

Proceedings of the Iowa Academy of Science

On the basis of a study of 22 articles written recently by college teachers about general education courses in science, the changes which have taken place in such courses since the late twenties and early thirties are summarized. Among these changes are a reduction of the emphasis upon survey and an increase of emphasis on the methods of science. New approaches, such as the historical approach, the problem approach, and the interdisciplinary approach are discussed. Changes in laboratory work to emphasize more the methods of science are noted. It is believed that two types of courses will continue to develop …

Student Counseling Program In Twenty Iowa Colleges, Lyle K. Henry, Donald R. Ortner

Proceedings of the Iowa Academy of Science

A survey was made of certain student personnel practices in twenty Iowa colleges by submitting a questionnaire and obtaining follow-up data one year later. While most colleges provide student counseling service, specific measures and procedures vary widely. There is no uniformity in regard to the testing program or the means for assisting students with "How to Study" problems. Generally speaking, any professional counseling effort is supplemented by adviser service rendered by regular faculty members.

Distribution Of Trichinella Spiralis Larvae In Tissues Of Swine, W. J. Zimmermann, L. H. Schwarte

Proceedings of the Iowa Academy of Science

Studies on the distribution of Trichinella spiralis in selected muscles of experimentally infected swine have indicated that the diaphragm generally contained the highest concentration of T. spiralis, followed by tongue, masseter, gluteal and intercostol muscles. Numerous tissues and organs devoid of striated muscle were also invaded by trichina larvae. Infected tissues were obtained from the circulatory, digestive, reproductive, nervous, endocrine, and excretory systems.

A Study Of Blindness In The House Mouse, Margaret L. Watson, Alan Orr, Theodore D. Mcclure

Proceedings of the Iowa Academy of Science

A study of blindness in mice, heterozygous for a dominant lethal mutation is reported. The eyelids may fail to fuse in the late embryo or may open at 2 or 3 days of age. The expression of the character may be an opacity of one or both eyes, reduced size of eyeball in one or both eyes, or opacity in one with reduced size in the other. Penetrance is incomplete.

Electron And Light Microscope Studies Of Endamoeba Terrapinae, Marilyn Driml

Proceedings of the Iowa Academy of Science

This study was restricted to the trophozoite stage of Endamoeba terrapinae. The most striking feature found was lack of cellular components such as are found in Amoeba proteus and the giant amoeba. No structures resembling mitochondria, Golgi bodies, or fat globules were observed. The only defined structures with the exception of the nucleus were vesicles containing bacteria and electron-dense granules. These cytoplasmic components stained lightly with hematoxylin.

Celestine Blue B As A Nuclear Stain In Vaginal Exfoliative Cytology, A. R. Dzmura, S. D. Miroyiannis, E. A. Burrows

Proceedings of the Iowa Academy of Science

This paper deals with spectrophotometric and chromatographic analyses of the dye and a study of two staining solutions with a variety of counterstains, using material fixed with ether/ alcohol. These observations indicate that the optimal combination of solutions are 0.5 gm celestine blue B and 40 ml glacial acetic acid heated to 60° C with stirring, to which when completely dissolved 100 ml water and 140 ml 4% ferric alum are slowly added. This should be incorporated with the Papanicolau procedure with the sole omissions of hematoxylin, the acid bath, and the lithium carbonate bath. The result is a very …

Electron Microscope Observations Of Intracellular Responses To Immobilization Antibody In Tetrahymena Pyriformis, Robert E. Henshaw

Proceedings of the Iowa Academy of Science

Through the coupling of high resolution electron microscopy with the sensitive and flexible techniques of agar diffusion it is possible to study in great detail the nature, site, and degree of intracellular damage caused by exposure to antibody. Tetrahymena is well suited for this type of study since pure cultures are readily grown axenically in the laboratory. Control cells exposed to saline solutions, neutral serum, or heterologous antiserum showed few differences from normal cells. In cells treated with homologous antibody a greatly increased number of cavities appear in the cytoplasm along Pitelka's primary meridian. It is suggested that these cavities …

Day-Night Changes After Exercise In Body Temperatures And Heart Rates Of Hamsters, G. Edgar Folk Jr., Richard R. Schellinger, Delbert Snyder

Proceedings of the Iowa Academy of Science

A day-night rhythm of body temperature in the golden hamster (Mesocricetus auratus) is described, showing a maximum of about 37.6°C in the night-animal and a minimum which is about l.3°C lower in the day-animal. The day-night difference is still present after forced exercise, indicating that the temperature-regulating mechanism, rather than muscular activity alone, accounts in part for the observed day-night rhythm of body temperature in the hamster. A day-night rhythm of heart rate was also found with a resting midnight level of 457 beats/min, and a resting noon minimum level which is about 45 beats/min lower. Apparently the hamster has …

Experimental And Mathematical Techniques For Kinetic Studies Of Larval Fruit Fly Growth, William J. Moressi, William F. Herrin, Charles C. Wunder

Proceedings of the Iowa Academy of Science

Techniques have been developed in our laboratory which permit the study of growth patterns under a variety of experimental conditions. The experimental subject under investigation is the larva of the common fruit fly Drosophilia melanogaster. Studies involving exposure of the organism to thermal, gravitational, electromagnetic, and magnetic agents have already been conducted. A particular advantage of employing the larvae is that they possess a relatively rapid and simple growth pattern from which experimental constants can be obtained and statistically analyzed. During their 96-hour growth period, the approximate time from the hatching of the egg to pupae formation, the larvae need …

Food Consumption Of Mice During Continual Centrifugation, Charles C. Wunder

Proceedings of the Iowa Academy of Science

High gravity simulated by continual centrifugation can evoke a slower growth with mice and other organisms. For white mice a transient reduction in food intake also occurs and is believed to be, in part, responsible for the reduced growth. Fields as high as 7 G's were employed. Mice of ages which varied from one to seven weeks at the onset of exposure were studied. A more drastic decrement in food consumption occurred with the older mice at higher field intensities.

Some Effects Of Thyroxine-Reserpine Treatment On Growth Of Mice, Lester C. Shell, Louis Farrugia, Danzil Hawes-Davis, Alexander Philip, Tom Merritt, Dan Lock

Proceedings of the Iowa Academy of Science

Thyroxine, reserpine, and a combination of the two drugs were given to white mice over a ten-week period. Effects on growth rate were noted. Data are presented which indicate that a sequence of thyroxine for two days and reserpine for one day, with the sequence repeated over the experimental period, proved to have greatest effect on growth rate.

Information For Authors

Proceedings of the Iowa Academy of Science

No abstract provided.

1959 Little Panther, Iowa State Teachers College High School

Malcolm Price Laboratory School Yearbooks

The student yearbook of the Teachers College High School (later the Northern University High School, part of the Malcolm Price Laboratory School of the University of Northern Iowa).

The Place Of English As A Foreign Language In The Ethiopian School System, Haile J. Abedjie

Dissertations and Theses @ UNI

Until the Italian occupation of 1936-1941 the name Ethiopia, which dates back to Biblical times, had been shrouded with myth and mystery. To some it was a reminder of the legend of the Queen of Sheba and to others it evoked the myth of Prester John. 1 Although the Italo-Ethiopian war of 1935-1936 did much to help foreigners place Ethiopia on the map of the world, even now only a very few foreigners can converse intelligently on Ethiopian history, culture, or politics.

A Drop-Out Study Of The Cedar Falls Community Schools, Bruce Roy Amble

Dissertations and Theses @ UNI

Every decade of this century has evidenced an increase in the amount of public education being received by American youth. Even so, the magnitude of concern over the number of students dropping out of school has not diminished. In 1900 the rate of students to continue in school until graduation was 6.4 to every 100 seventeen-year-olds in the population; more recently the ratio was 60.0 to every 100.

A Follow-Up Study Of Ellsworth Junior College Graduates And Students Who Transferred To Baccalaureate Colleges Or Semi-Professional Schools, Eleanor J. Andershok

Dissertations and Theses @ UNI

The junior college is uniquely American and a part of our total educational pattern as evidenced by its growth and progress in the last fifty years. The need to progress and improve is felt by all institutions of education. National educational surveys are made, but they do not reflect the heart of the individual school; they do not point out its individual strengths and weaknesses; they do not indicate the achievement of unique objectives and goals. If the junior college is to improve its educational effectiveness, it can only be done through introspection and self-study.

Guides For The Elementary Teacher In The Playing Of Selected Simple Rhythmic, Melodic And Harmonic Instruments, Lorraine Salome Augustyn

Dissertations and Theses @ UNI

"There are no first, second, third fourth, fifth or sixth graders in the elementary schools of Appleton, Wisconsin. Children are ungraded. They are neither promoted nor failed. They do not receive report cards. Under Appleton's Continuous Progress Plan, youngsters move along as fast as their individual abilities can take them. Free from the artificial limits of grade requirements they push on beyond these arbitrary boundaries. In the process they meet the toughest competitive challenge in the world--the challenge to achieve their highest capacity.'

Thus, does Arthur Morse describe the educational philosophy of the Appleton Elementary Public Schools. This philosophy is …

The Principal’S Role In The Library Services In Iowa High Schools With Enrollments Of 200 To 300 Students, Arthur E. Borwick

Dissertations and Theses @ UNI

For many years colleges and universities have provided reasonably adequate instruction tor school administrators in moat of the areas of their professional education. Required courses in administration, curriculum, and supervision of the secondary school give attention to nearly all phases of the school program. However, it is questionable whether some phases of secondary education have been properly covered, and one of these is the library. Since all areas of responsibility are of concern to school administrators, it is fundamental that the role of the school library be adequately understood and supported by administrators if the library is to make its …