Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

University of Northern Iowa

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 23851 - 23880 of 36029

Full-Text Articles in Entire DC Network

Cover - Table Of Contents Jan 1977

Cover - Table Of Contents

Proceedings of the Iowa Academy of Science

No abstract provided.

Go to article

Notes On The Odonata Of The Cedar-Iowa River Basin, M. S. Hummel, A. C. Haman Jan 1977

Notes On The Odonata Of The Cedar-Iowa River Basin, M. S. Hummel, A. C. Haman

Proceedings of the Iowa Academy of Science

Past and present studies of the Cedar-Iowa River Basin indicate that 82 species of Odonata inhabit the basin. Of the 82 species reported since the tum of the century, 60 species were collected from 1971 -1975; the remaining species were recorded prior to 1920. Two species, Aeshna canadensis Walker and Aeshna interrupta lineata Walker, collected in 1975, represent new records for the state of Iowa. Distribution maps of the 82 species reported within the basin are included.

Go to article

Editorial Board Jan 1977

Editorial Board

Proceedings of the Iowa Academy of Science

No abstract provided.

Go to article

Effect Of Export, Environmental And Soil Conservancy Measures On Productivity, Land Use And Income Of Iowa, Earl O. Heady Jan 1977

Effect Of Export, Environmental And Soil Conservancy Measures On Productivity, Land Use And Income Of Iowa, Earl O. Heady

Proceedings of the Iowa Academy of Science

A national model was constructed to evalute the Iowa conservancy law as it might affect environmental quality, land productivity, export potentials and income of the Iowa and national farm sectors. The mathematical model analyzed 12 land classes in each of 12 Iowa agroclimatic regions and in 105 natural agroclimatic regions. Alternatives analyzed included limiting annual soil loss per acre to 2.5 and 5 tons, reduction of chemical nitrogen and shift of pesticides to organophosphates and carbamates in Iowa while parallel adjustments are not made in the rest of the nation's agriculture. Exports at various levels are evaluated. While full implementation …

Go to article

Iowa Communications Journal, Volume 9, Number 1, Spring 1977 [Download Entire Issue] Jan 1977

Iowa Communications Journal, Volume 9, Number 1, Spring 1977 [Download Entire Issue]

Iowa Journal of Communication

No abstract provided.

Go to article

Chaim Perelman's View Of Rhetorical Act, Ray D. Dearin Jan 1977

Chaim Perelman's View Of Rhetorical Act, Ray D. Dearin

Iowa Journal of Communication

The concept of the "rhetorical act" has been used by contemporary theorists and critics to generate new insights into rhetoric. This paper considers how Chaim Perelman's "new rhetoric" employs the concept of act to illuminate speaker-speech-audience relationships, and, in turn, how Perelman's theory is clarified by reference to this paradigm.

Go to article

Spotlighting Excellence, Dave Mccalley Jan 1977

Spotlighting Excellence, Dave Mccalley

Iowa Science Teachers Journal

This article begins a continuing series of personal sketches concerning recipients of the annual Iowa Academy of Science Excellence in Science Teaching Awards. In this article, the recipients of the awards in biology and elementary science teaching, Owen Primavera and Diana Brill, will be featured.

Go to article

Thomas Edison Jan 1977

Thomas Edison

Iowa Science Teachers Journal

Thomas Edison successfully produced rubber from goldenrod.

Go to article

Ias-Aaas Incremental Investigative Grants For High School Students, Lynn W. Glass Jan 1977

Ias-Aaas Incremental Investigative Grants For High School Students, Lynn W. Glass

Iowa Science Teachers Journal

In an attempt to encourage Iowa high schools to provide support for investigative science activities, the Iowa Academy of Science, with the financial support of the American Association for the Advancement of Science, has created an Incremental Investigative Grant Program. These grants, beginning with the current school year, are available for appropriate scientific investigative activities by high school students working under the sponsorship of a science teacher.

Go to article

The Plant Kingdom: A New Energy Source Jan 1977

The Plant Kingdom: A New Energy Source

Iowa Science Teachers Journal

Besides being an energy source for themselves, plants are the ultimate energy source for all other forms of life.

Go to article

Uni Symposium Jan 1977

Uni Symposium

Iowa Science Teachers Journal

The University of Northern Iowa will host its fifteenth annual Science and Mathematics Symposium on November 10-11, 1977.

Go to article

The Welk Effect, Joe Moore Jan 1977

The Welk Effect, Joe Moore

Iowa Science Teachers Journal

To get a Niagara Falls of bubbles, place about 5 gm of manganese in 100 ml graduated cylinder, fill the cylinder three-fourths full of a "Halo" type shampoo solution and add about 5 ml of hydrogen peroxide.

Go to article

Will It Work In Iowa? Jan 1977

Will It Work In Iowa?

Iowa Science Teachers Journal

The embankments of many Austrian highways today show on both sides of the road a new installation: game-warning reflectors which are designed to divert beams from car headlamps into the adjoining countryside. The basic idea for the installation of the reflectors has been derived from the studies of the Institute of Comparative Behavior Research in the Austrian Academy of Sciences, which concentrated on the effect on animals of "eyes" and "eye dummies."

Go to article

Patriotic Phenolphtalein, Joe Moore Jan 1977

Patriotic Phenolphtalein, Joe Moore

Iowa Science Teachers Journal

To illustrate the "patriotic nature" of phenolphthalein, prepare a dilute solution by dissolving 0.1 gm of phenolphthalein in 100 ml of ethyl alcohol and dilute with 50 ml of water.

Go to article

Practical Application Of Basic Research In Hydrogen Bonding, Paul E. Rider Jan 1977

Practical Application Of Basic Research In Hydrogen Bonding, Paul E. Rider

Iowa Science Teachers Journal

It has become common in recent years for non-scientists to react rather disdainfully toward research projects that ad dress what appear to them to be highly specialized areas of interest and which, from their titles, offer little good for mankind. Those of us who spend great portions of our waking hours engrossed in these studies tend to over-react in the other direction by holding our endeavors in an exaggerated esteem that tends to preclude an appropriate assessment of their essential merit. As is usually the case, the proper perspective lies somewhere in between.

Go to article

What Makes Your Garden Grow?, Joe Moore Jan 1977

What Makes Your Garden Grow?, Joe Moore

Iowa Science Teachers Journal

To illustrate crystal formation, dissolve 35 ml of sodium silicate into 150 ml of water placed in a 400 ml beaker.

Go to article

A Philosophical Approach To The Meaning Of Science, James Slock Jan 1977

A Philosophical Approach To The Meaning Of Science, James Slock

Iowa Science Teachers Journal

It would seem to be a rat her simple matter to define what science is and how it operates. After all, a good portion of our high school and college careers have been spent in science classrooms and laboratories. Possible answers might be that science is an organized body of knowledge and that it operates by discovering the truth about nature through the use of scientific method. It seems equally simple to visualize science as a massive pile of bricks with each scientist adding a new brick each time he discovers a new fact or invents a new theory. Further, …

Go to article

Ice - The Common, Yet Strange Substance, Dennis Barnaal Jan 1977

Ice - The Common, Yet Strange Substance, Dennis Barnaal

Iowa Science Teachers Journal

Ice has been the focus of studies by physicists, chemists, geologists and even biologists for many years. Ice represents a basic example of the hydrogen bond which is present in many important organic molecules. In some parts of the world, ice or permafrost is an important constituent of construction. The movement of glaciers and formation of hailstones represent aspects of ice physics. Cell water in living cells appears to be ice-like. However, ice is still not fully understood. An international conference on the physics and chemistry of ice is held approximately every four years.

Go to article

New Units Available Jan 1977

New Units Available

Iowa Science Teachers Journal

Agricultural Research Service scientists and high school teachers have combined their skills to create innovative science units.

Go to article

Mood Rings Jan 1977

Mood Rings

Iowa Science Teachers Journal

The "stone" of the mood ring, which supposedly changes colors as your emotions change, is composed of photographic paper similar to that used in the construction of digital thermometers that change color as temperatures fluctuate.

Go to article

"Fore" Physics, Rick Zehr Jan 1977

"Fore" Physics, Rick Zehr

Iowa Science Teachers Journal

I have developed an activity which I would like to share, in the hope that it might prove educational as well as enjoyable. In Chapter 1 of the Project Physics there is a brief history of photography, which in itself is quite interesting, but one picture specifically lends itself to additional study. The photograph of the golfer provides the basis for this activity. The students are asked to work in small groups to determine the speed of the ball.

Go to article

Snowflakes You Can Keep!, A. C. Haman Jan 1977

Snowflakes You Can Keep!, A. C. Haman

Iowa Science Teachers Journal

Are all snowflakes the same shape? To answer this question have students try the following procedure, used for the preservation of snowflakes, outlined in a recent Kalamazoo Nature Center Newsletter.

Go to article

Another Christmas Experiment, Glen Loveridge Jan 1977

Another Christmas Experiment, Glen Loveridge

Iowa Science Teachers Journal

In the December 1974 edition of Iowa Science Teacher's Journal, p. 24, I described a peanut brittle lab which could be done just before Christmas. This year I would like to describe a Candy Cane Lab.

Go to article

Back Cover Jan 1977

Back Cover

Iowa Journal of Communication

No abstract provided.

Go to article

Extemp, Extemporaneous Speaking, Extempore: "They're All The Same To Me", Jerry Hall Jan 1977

Extemp, Extemporaneous Speaking, Extempore: "They're All The Same To Me", Jerry Hall

Iowa Journal of Communication

According to "The Merriam-Webster 'Funky' Pocket Dictionary" the definition of the word Extemporaneous is "not planned beforehand while the word Speaking is defined as "making known one's thoughts, feelings, or opinions in words." By practical definition, an extemp speech consists of three points of analysis encompassed by an introduction and conclusion. There are several requisites that are necessary before a speech is considered an individual events extemporaneous speech. In their book, Coaching and Directing Forensics, Kloff and Lahman give the first requisite of an extemporaneous speech, that it must be a speech prepared in advance but neither written out nor …

Go to article

Creative Dramatics: A Philosophy And A Method, Chris Furman Jan 1977

Creative Dramatics: A Philosophy And A Method, Chris Furman

Iowa Journal of Communication

Life today tends to smother this love of activity and initiative that children have. Television programs require little thinking, elaborate toys offer no chance for ingenuity, and elementary schools offer few chances for the child to participate in activities that challenge his deepest interest and highest powers.

Go to article

Melodrama In The Secondary Schools, Louis Becker Jan 1977

Melodrama In The Secondary Schools, Louis Becker

Iowa Journal of Communication

Unfortunately an all too common situation will be repeated this fall in our schools, a situation which has been the bane of many a beginning English teacher in the past. When the time comes to designate extra duties and assignments, the principal has only to look to his first-year English teacher to find the director of the SCHOOL PLAYS! Limited perhaps more by a lack of training and background than imagination and talent, the teacher frantically searches for that "cheap, easy play" as a first go. And so we see the teacher - soon-to-become-director poised at the brink of plunging …

Go to article

Energy Jan 1977

Energy

Iowa Science Teachers Journal

If energy was delivered to your door like milk -- today, you would have had 19 half gallons of oil, 14 half gallons of natural gas, and 46 pounds of coal on your doorstep.

Go to article

Aging Iowa Trees, Roger Q. Landers Jan 1977

Aging Iowa Trees, Roger Q. Landers

Iowa Science Teachers Journal

How old is this tree? Or that one? Unanswerable questions to most people, unless they are there when it started growing, but with proper techniques, equipment, and a bit of skill (or luck), it is not so difficult to determine the age of a tree. Because trees grow in girth by the addition, each year, of a layer of wood just inside the inner bark, these layers can be counted when they are clearly exposed. We usually see the layers exposed as rings on the surface of a stump, hence the study of aging trees is referred to as "tree-ring" …

Go to article

Iowa Landforms Jan 1977

Iowa Landforms

Iowa Science Teachers Journal

A new publication, A Regional Guide to Iowa Landforms, is now available as the Iowa Geological Survey Educational Series 3.

Go to article

First Prev Next Last