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Full-Text Articles in Entire DC Network
Reports - Financial Statement; Report Of The Editor; Committee Reports; Conservation In Iowa, 1963
Reports - Financial Statement; Report Of The Editor; Committee Reports; Conservation In Iowa, 1963
Proceedings of the Iowa Academy of Science
No abstract provided.
Androhermaphrodites Of Lychnis Alba, H. L. Dean, Sharon K. Smith
Androhermaphrodites Of Lychnis Alba, H. L. Dean, Sharon K. Smith
Proceedings of the Iowa Academy of Science
Lychnis alba was found to produce four categories of flowers; i.e. pistillate, staminate, gynohermaphrodite and androhermaphrodite. Hermaphrodites are formed when a rudimentary pistil (pistillodium) or stamens (staminodea) develop into mature organs on the ovaries of otherwise pistillate or staminate flowers. Androhermaphrodites, in particular, were studied and their structure and behavior found to be essentially similar to corresponding parts of regular staminate and pistillate flowers. Ovaries of androhermaphrodite flowers exhibited variations in style number ranging from one to five. Ovaries with two to five styles were self- or cross-fertile with any good Lychnis alba pollen. One-styled ovaries of androhermaphrodite flowers were …
The Spectrophotometric Determination Of Copper With Bis-3,3'-(5,6-Dimethyl-1,2,4-Triazine), Richard E. Jensen, Ronald T. Pflaum
The Spectrophotometric Determination Of Copper With Bis-3,3'-(5,6-Dimethyl-1,2,4-Triazine), Richard E. Jensen, Ronald T. Pflaum
Proceedings of the Iowa Academy of Science
A new reagent, bis-3,3'-(5,6-dimethyl-1,2,4-triazine), BDMT, is proposed for the colorimetric determination of copper. The reagent is water soluble and is easily prepared in the laboratory. An intensively colored orange complex, Cu(BDMT)2+1, is formed upon reaction of copper(I) ion and the reagent in aqueous solution at pH 5.0. The complex exhibits a wavelength of maximum absorption at 444 mμ with a molar absorptivity of 9,700. The perchlorate salt of the complex is readily extracted into nitrobenzene from aqueous solution. A proposed spectrophotometric method for the determination of copper is both accurate and precise.
Schiff's Bases Of Pyridylhydrazine As Analytical Reagents For Cobalt, L. Keith Hunt, Harvey Diehl
Schiff's Bases Of Pyridylhydrazine As Analytical Reagents For Cobalt, L. Keith Hunt, Harvey Diehl
Proceedings of the Iowa Academy of Science
Schiff s bases having functioned groups adjacent to the carbon-nitrogen bond so that chelation (ring formation) can occur with metal atoms are of interest because of the intense colors of the metal derivatives. Thus, the compound l,3-bis(2'-pyridyl)-2,3- diaza-l-propene (I) abbreviated PDP reported by Lions and Martin (1) and Geldard and Lions (2) forms a compound with cobalt so intensely colored as to offer promise of use in the analytical chemistry of cobalt. We have now investigated the cobalt, iron and nickel derivatives of PDP in detail and have investigated also certain similar Schiff's bases such as 1-(2' - hydrozyphenyl)-3-pyridyl-2,3-diaza-l-propene (II) …
Comparison Of Various Commercial Hydrated Lime For Reducing Soil Plasticity, J. W. H. Wang, R. L. Handy
Comparison Of Various Commercial Hydrated Lime For Reducing Soil Plasticity, J. W. H. Wang, R. L. Handy
Proceedings of the Iowa Academy of Science
Atterberg limits tests were performed on mixtures of gumbotil soil and the various chief chemical compounds found in hydrated limes. The results were then checked with commercial hydrated limes of varying chemical compositions. Results indicate that among the major constituents of hydrated limes Ca(OH)2 is most effective in reducing soil plasticity. MgO shows a moderate effect, but Mg(OH)2 and CaCO3 show practically no effect. There is, however, practically no difference between different types or between the same type of commercial hydrated limes for the reduction of soil plasticity. The choice of lime for soil-lime stabilization should, therefore, …
Information For Authors
Proceedings of the Iowa Academy of Science
No abstract provided.
The Faculty Chair: Midwest Literature And Poet James Hearst, Loren Taylor
The Faculty Chair: Midwest Literature And Poet James Hearst, Loren Taylor
Midwest: A Literary Review
No abstract provided.
College Catalog 1964-1966, State College Of Iowa
College Catalog 1964-1966, State College Of Iowa
UNI Programs and Courses Catalogs
Table of Contents
College Calendar ... 4
The College and Its Program ... 6
College Terminology ... 8
Questions and Answers ... 11
Preparing for Admission ... 13
General Information ... 15
Student Residence ... 15
Employment ... 17
Scholarships ... 19
Extracurricular Activities ... 20
Extension Service ... 27
College Policies ... 29
Admission Procedures ... 29
Enrollment and Registration ... 37
Fees Schedule ... 38
Curricula ... 44
Undergraduate Curricula ... 47
Adjustments for Transfer Students ... 56
Requirements for Graduation ... 57
Teaching Certificates ... 60
Courses of Instruction ... 62
The Graduate Program ... 123
Assistantships …
Cover - Journal Staff; Journal Information; Ista Officers
Cover - Journal Staff; Journal Information; Ista Officers
Iowa Science Teachers Journal
No abstract provided.
Reviews - Evolving, E. Russell Tepaske
Reviews - Evolving, E. Russell Tepaske
Iowa Science Teachers Journal
George Gaylord Simpson in Science states: "The most interesting . . . the most judicious scientific treatise that has ever been written on the nature of man.”
Open Letter From The President, David L. Fagle
Open Letter From The President, David L. Fagle
Iowa Science Teachers Journal
The Iowa Science Teacher's Association is a growing organization and this journal is evidence of its expanding program. All teachers of science in the State of Iowa should be active members of this worthwhile organization.
Pollen As A Teaching Tool, Paul W. Tweeten
Pollen As A Teaching Tool, Paul W. Tweeten
Iowa Science Teachers Journal
One of the basic needs I have encountered in teaching biology is being able to reach a designated goal by different avenues; that is, a diversified approach to the subject. I will attempt to show how a different tool, pollen, can be used to illustrate a number of common biological concepts.
Reviews - Single Concept Teaching Films, E. Russell Tepaske
Reviews - Single Concept Teaching Films, E. Russell Tepaske
Iowa Science Teachers Journal
Recent materials in science education that will likely affect classroom instruction in all sciences for years to come is the single concept teaching film series of Encyclopedia Britannica Films Inc.
Iowa Geological Survey, H. Garland Hershey
Iowa Geological Survey, H. Garland Hershey
Iowa Science Teachers Journal
It is the duty of the Geological Sur vey to collect, interpret, and on basic geologic features of the State.
Events And Dates To Remember
Iowa Science Teachers Journal
A listing of several science-related events happening in Iowa during spring 1964.
Spirit Lake High School Junior Research Program: A Course Of Study, Milbert Krohn
Spirit Lake High School Junior Research Program: A Course Of Study, Milbert Krohn
Iowa Science Teachers Journal
To begin with, I had felt that the time had come in the curriculum development of Spirit Lake High School to offer some further incentive to the science talented student to beyond the regular offering of the curriculum, and to engage in activities which would teach him more of the true essence of science than he could receive in the regular classroom procedures – at least to approach it in a different way.
News And Notes - Election By Mail
News And Notes - Election By Mail
Iowa Science Teachers Journal
This will be the first attempt at electing ISTA officers by means of a mail ballot.
News And Notes - Scientific Manuscript Competition . . . To Remind You
News And Notes - Scientific Manuscript Competition . . . To Remind You
Iowa Science Teachers Journal
The Iowa Junior Academy of Science has for its purpose the fostering and promotion of scientific interest among students of junior and senior high school levels and the sharing of scientific information gathered by the individual and group club members. One medium by which the I.J.A.S. attains this purpose is the Scientific Research Papers.
Elementary Science Via Television, Verlin W. Lee
Elementary Science Via Television, Verlin W. Lee
Iowa Science Teachers Journal
The State College of Iowa, State University of Iowa, and the Iowa State University, in conjunction with the Iowa Joint Committee on Educational Television, has endeavored to instigate several television programs which are broadcast primarily for classroom students throughout the listening areas of Ames, Cedar Rapids, and Waterloo, Iowa.
Review - The Quest Of Johannes Kepler, Astronomer, Andrew Stevenson
Review - The Quest Of Johannes Kepler, Astronomer, Andrew Stevenson
Iowa Science Teachers Journal
Barbara Land has written a book presenting the scientific contributions of Johannes Kepler. She has explained the theories and events which influenced Kepler.
Review - Teaching Chemistry With Models, Jean Crane
Review - Teaching Chemistry With Models, Jean Crane
Iowa Science Teachers Journal
This book contains 175 pages packed with information. The first half deals with types of bonding as related to electron arrangement, and with the use of this information to understand chemical properties of elements and compounds.
Paper Chromatograms Of Body Mucus Of Some Suckers (Family Catostomidae), Gene R. Huntsman
Paper Chromatograms Of Body Mucus Of Some Suckers (Family Catostomidae), Gene R. Huntsman
Proceedings of the Iowa Academy of Science
Phenol:water and butanol:acetic acid:water solvent systems were used with horizontal and descending paper chromatography of the body mucuses of Carpiodes, Catostomus, Ictiobus, Moxostoma, and Hypentelium. Mucus could be sampled in the field, applied to the chromatography paper, allowed to dry, and kept for several days without refrigeration. Chromatograms of fresh and dried mucus appeared the same. Horizontal runs were faster but were abandoned for the greater separation possible with descending techniques. Ninhydrin-stained descending chromatograms showed differences between some genera within a run. Descending chromatograms run in butanol:acetic acid:water and viewed with short wave ultraviolet light showed differences between most genera …
Large Glacial Erratics In Northeast Iowa, Lester P. Engelke
Large Glacial Erratics In Northeast Iowa, Lester P. Engelke
Proceedings of the Iowa Academy of Science
The location of large glacial erratics of gneiss and granite in northeast Iowa, specifically in the tri-county area of Bremer-Fayette-Chickasaw counties is described. Discussed are the possible origin, size, location, detectability on survey photos, and some historical features. Action to provide for protection of these glacial relics against destruction is urged.
Grainy Gray Ped Coatings In Brunizem Soils, R. W. Arnold, F. F. Riecken
Grainy Gray Ped Coatings In Brunizem Soils, R. W. Arnold, F. F. Riecken
Proceedings of the Iowa Academy of Science
The presence of light colored, granular material on structural units in the lower B horizon is considered to be an atypical morphological feature in the Brunizem soils of Iowa. This study indicates that there are appreciable areas of Brunizem soils, derived from Wisconsin loess and Iowan till, in eastern Iowa with such coatings in the lower B horizon. Because the grainy gray ped coatings cannot readily be accounted for by any soil-forming factor other than vegetation, and because they are similar to coatings in some associated Gray-Brown Podzolic soils, it is inferred that their presence is generally related to a …
Soil Stabilization With Polystyrene, Gilbert L. Roderick, Turgut Demirel
Soil Stabilization With Polystyrene, Gilbert L. Roderick, Turgut Demirel
Proceedings of the Iowa Academy of Science
This paper presents results of an investigation of the effect of polystyrene on the engineering properties of three soils. Use of a polystyrene-benzene solution as an admixture resulted in increased strength values. Satisfactory resistance to expansion and frost action was obtained with sandy and silty soils; unsatisfactory results were obtained with a clayey soil. Polystyrene stabilization is most effective with sandy soils; effectiveness decreases with increasing clay content. At present the method does not compare favorably with the economics of other available methods of stabilization.
Study Of The Frequency Of Color Blindness Among Mentally Retarded Children In The Counties Of Buena Vista, Cherokee, Ida And Sac., Terry L. Penniman
Study Of The Frequency Of Color Blindness Among Mentally Retarded Children In The Counties Of Buena Vista, Cherokee, Ida And Sac., Terry L. Penniman
Proceedings of the Iowa Academy of Science
The study has shown that there is an appreciably greater frequency of defective color vision among the mentally retarded children in the counties specified than that found in normal children. The general objective of this study was to determine the frequency of color blindness among mentally retarded children in an area of northwest Iowa. The subjects were children in fifteen special education classes for the mentally retarded. The Hardy-Rand-Ritter Pseudoisochromatic plates for detecting, classifying, and estimating the degree of defective color vision were used in this study. The author in all cases did the examining.
Reaction Of Cinnamoyl Chloride With A Dialkylcadmium Reagent, Kenneth W. Kraus, Richard T. Bogan, Richard M. Weier
Reaction Of Cinnamoyl Chloride With A Dialkylcadmium Reagent, Kenneth W. Kraus, Richard T. Bogan, Richard M. Weier
Proceedings of the Iowa Academy of Science
It was demonstrated that a dialkylcadmium reagent would successfully react with the unsaturated acid chloride, cinnamoyl chloride, under both ordinary conditions and at 0 ° in the presence of ferric chloride to give the alkyl styryl ketone in yields of 54% and 46% respectively. The nbutyl styryl ketone obtained in the reaction displayed infrared absorbtion at 5.92 μ (C=O) and at 6.04 μ (C=C). The dipole moment was found to be 3.16 D in benzene solution at 25°.
An Analysis Of Bscs Biology In Use For First Time, George Chapman
An Analysis Of Bscs Biology In Use For First Time, George Chapman
Iowa Science Teachers Journal
An analysis of the use of a particular program should examine the situation as it exists prior to adoption of the program. This is particularly true in an examination of a biology program.
One Of Our Christmas Conifers
Iowa Science Teachers Journal
A native of Europe and Western Asia, Austria pine has been cultivated for many years in the United State as an ornamental, having been introduced as early as 1759.
Information For Contributors
Iowa Science Teachers Journal
Papers considered for publication in the Iowa Science Teacher's Journal shall be the results of original investigation and thought. They will be judged on the basis of their contribution of original data and ideas or interpretation. Papers from nonmembers will be accepted for publication only upon the vote of the Editorial Board.