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 6331 - 6360 of 7391

Full-Text Articles in Entire DC Network

Toxic Algae In Iowa Lakes, Earl T. Rose Jan 1953

Toxic Algae In Iowa Lakes, Earl T. Rose

Proceedings of the Iowa Academy of Science

Almost all of the natural lakes of Iowa develop at certain periods throughout the summer and fall months, heavy growths of small floating plant life commonly known as blue-green algae. These tiny, primitive organisms develop rapidly in certain lakes, and often form unsightly, paint-like scums over calm lake surfaces, and particularly along lee shores. Upon decomposition of these heavy scums, or "bloom" as they are commonly termed, terrifically foul, pig-pen odors issue therefrom, making human living conditions in the vicinity intolerable, and limiting to a large degree all aquatic recreation. In addition to these unwholesome attributes, certain species of blue-green …


On The Duration Of Nests Of Formica Obscuripes Forel, R. L. King, R. M. Sallee Jan 1953

On The Duration Of Nests Of Formica Obscuripes Forel, R. L. King, R. M. Sallee

Proceedings of the Iowa Academy of Science

No abstract provided.


Notes On The Occurrence Of Birds During The Spring Periods Of 1948-1950, In Northern Emmet County, Iowa, Henry G. Weston Jr. Jan 1953

Notes On The Occurrence Of Birds During The Spring Periods Of 1948-1950, In Northern Emmet County, Iowa, Henry G. Weston Jr.

Proceedings of the Iowa Academy of Science

Bird students are usually only vaguely aware of the orderly sequence of arrival dates of migrants and summer-residents in a given area. They know merely that certain species may be expected to appear at certain times each year. If data are compiled and presented in either tabular or graphical form, it becomes possible to evaluate year-to-year differences within one species and to make comparison between species. During the winter-spring-summer periods of 1947-1948, 1948-1949 and 1949-1950, the author gathered data on the occurrence of birds in northern Emmet County, Iowa. Although data were gathered from February through July of 1948 and …


A Thermosetting Resin For More Permanent Preservation Of Botanical Specimens, John R. Weber Jan 1953

A Thermosetting Resin For More Permanent Preservation Of Botanical Specimens, John R. Weber

Proceedings of the Iowa Academy of Science

The literature concerning the preparation of fresh and dried plant material for embedding in methacrylate resins is vuluminous. The excellent reviews of Fessenden and Fessenden and Sando adequately cover the work (3, 4). More recently, however, methods for the preservation of the natural pigments in plant material have been outlined (7).


Reports: The Secretary; The Treasurer; The Editor; Committee Reports Jan 1953

Reports: The Secretary; The Treasurer; The Editor; Committee Reports

Proceedings of the Iowa Academy of Science

No abstract provided.


In Memoriam: William E. Albert; Jacob P. Anderson; Ellis Ingham Fulmer; Henry Albright Mattill; Maurice George Ricker; William James Rusk Jan 1953

In Memoriam: William E. Albert; Jacob P. Anderson; Ellis Ingham Fulmer; Henry Albright Mattill; Maurice George Ricker; William James Rusk

Proceedings of the Iowa Academy of Science

No abstract provided.


A Report On A Survey Of Science Instruction In The High Schools Of Iowa, James W. Kercheval Jan 1953

A Report On A Survey Of Science Instruction In The High Schools Of Iowa, James W. Kercheval

Proceedings of the Iowa Academy of Science

This is a report of a survey pertaining to some phases of the science program in the junior and senior high schools of Iowa. The data on which this report is based was gathered by a questionnaire which was sent to each high school in the state. All data unless otherwise indicated applies to the school year of 1951-52.


Morphological Identification Of Free-Living Amoebida, Eugene Cleveland Bovee Jan 1953

Morphological Identification Of Free-Living Amoebida, Eugene Cleveland Bovee

Proceedings of the Iowa Academy of Science

One of the knottiest problems in zoology is the specific identification of naked, free-living amoebas of the order Amoebida. Usual methods of taxonomic identification, i.e. easily distinguishable morphological contours of sufficient permancy seem to be lacking in them. Schaeffer (1926), amongst others, points out that such a creature as "the amoeba," does not exist. He speculates, perhaps rightly, that the naked, free-living amoebas are of polyphyletic origin, and that to attempt to classify them phylogentically is virtually impossible. The supposed "simplicity" of amoebas, because of their resemblance to the "basic cell," has given credence to the belief that there is …


Returns From Tagged Channel Catfish In The Des Moines River, Iowa, Harry M. Harrison Jan 1953

Returns From Tagged Channel Catfish In The Des Moines River, Iowa, Harry M. Harrison

Proceedings of the Iowa Academy of Science

The Channel Catfish was shown by Speaker (1948) in a sample of 1800 Iowa anglers to be the most important species of fish inhabiting the inland streams of Iowa. Therefore, any information concerning its life history and habits is important and of value in formulating a management policy for the species. To get information on the life history and habits of the channel catfish, tagging experiments were initiated in 1947. Tagging was carried on through 1949 and recoveries are continuing. The information sought by this investigation was: (1) to study the possibility of using marked fish for an inventory of …


Food Habits Of The Carp In Northwest Iowa Lakes, Tom Moen Jan 1953

Food Habits Of The Carp In Northwest Iowa Lakes, Tom Moen

Proceedings of the Iowa Academy of Science

In the comparatively short time since carp (Cyprinus carpio) were brought to the United States, they have dominated an amazingly large percentage of the fishery resources of this country and an equally large percent of the efforts of fishery management. Carp have been credited at one time or another, by sportsmen and biologists alike, with being the root of all fishery problems and in many cases game problems as well. The food and feeding habits of the carp usually receive the lion's share of this blame. The data presented in this study form a portion of a general …


A Study Of Digital Variations Of The Human Hand, Guillermo Mendoza Jan 1953

A Study Of Digital Variations Of The Human Hand, Guillermo Mendoza

Proceedings of the Iowa Academy of Science

The writer's interest in this study is a direct outgrowth of his teaching classes in Genetics for many years. Much has been written in the genetic literature about the inheritance of abnormalities in hands and fingers such as brachydactyly, clinodactyly, etc., and yet, relatively little has been done to study the normal occurrence of these inherited variations in the average population. Thus, the purpose of this study is to analyze in an average population sample, such as a college student body, some of the anatomical variations that normally occur in the digits of the hand. The study of these variations …


Crowing Cock Count, Richard C. Nomsen Jan 1953

Crowing Cock Count, Richard C. Nomsen

Proceedings of the Iowa Academy of Science

The crowing cock count is one of the major techniques used to census the pheasant population in Iowa. Together with the roadside census (Bennett and Hendrickson, 1938) and the rural mail carrier count, it forms the basis of determining the pheasant population indices. Successful in estimating the numbers of mourning doves in Nebraska by counting their calls, McClure (1944) devised a system of counting pheasant calls as an index to their population levels. At first, aerial bombs of the fireworks variety were detonated to increase the intensity of the calls. In a later study (McClure, 1945) one minute counts during …


A Check List Of Mammals Of Present Occurrence In Iowa With Notes On New Additions And Distribution Since 1937, Emmett Polder Jan 1953

A Check List Of Mammals Of Present Occurrence In Iowa With Notes On New Additions And Distribution Since 1937, Emmett Polder

Proceedings of the Iowa Academy of Science

There is little definite information regarding the distribution limits of mammals known to occur in Iowa and neighboring states. The purpose of this paper is to add to the rather sketchy knowledge of mammal distribution in Iowa. There is need for much more observation and collection of specimens and data before a comprehensive picture of mammal distribution is completed. A better knowledge of where certain mammalian forms do, or do not, occur is important to the students of ecology, game management, parasitology, taxonomy, and agriculture since the mammal coactions with other life forms have important relations to these fields.


Recent Status Of The Beaver In Iowa, Glen C. Sanderson Jan 1953

Recent Status Of The Beaver In Iowa, Glen C. Sanderson

Proceedings of the Iowa Academy of Science

Many years prior to the settlement of Iowa her streams had been scoured by Indian hunters and white trappers for fur, principally beaver. The hunters and trappers had taken the cream of the beaver before the earliest settlements were established; however, remnants of the population were still present as is attested to by the fact that Iowa geography has many names alluding to the beaver. Beaver could not stand both persecution and civilization, so they disappeared from Iowa sometime after the seventies and in 1872 the legislature placed them on the "continuous closed season" list. By the late twenties there …


The Character Of Robinson Jeffers: A Study In “Inhumanism”, Betty Jean Evans Jan 1953

The Character Of Robinson Jeffers: A Study In “Inhumanism”, Betty Jean Evans

Dissertations and Theses @ UNI

When one reads many of the long narrative poems of Robinson Jeffers, one wonders at the characters who act out their lives against a backdrop of the contemporary California coastal region. The characters live isolated lives as ranchers, farmers, and farm women; they go about the business of eking out an existence, of cultivating their land, of caring for their livestock. Often, they commit horrible, unnatural acts and always, they or their families are involved in episodes which result in death or injury. Although these characters do not have the stature of an Oedipus or a Medea, their lives and …


Materials And Methods For The Study Of Some Common Molds In High School Biology, Milton Forbes Jan 1953

Materials And Methods For The Study Of Some Common Molds In High School Biology, Milton Forbes

Dissertations and Theses @ UNI

The purposes of this study are (1) to compile a list of experiments dealing with molds that may be of use in a high school biology course; (2) to outline general techniques associated with the culturing and study of molds; and (3) to bring together a list of various instructional materials of value in the study of molds.


The Alumnus, V36n4, December 1952, Iowa State Teachers College Dec 1952

The Alumnus, V36n4, December 1952, Iowa State Teachers College

The Alumnus

Inside This Issue:
-- Services of the College
-- Alumni Membership Program Gets Under Way
-- Lay Cornerstone for New School
-- Alumni Meet at I.S.E.A. Convention
-- Graduate Program in Full Swing
-- Building
-- Professional Advancement?
-- Panther Sports Parade
-- Keeping up With Alumni
-- Marriages
-- Births
-- Deaths


Iowa State Teachers College Schedule Of Classes, Fall 1952, Iowa State Teachers College Oct 1952

Iowa State Teachers College Schedule Of Classes, Fall 1952, Iowa State Teachers College

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Teachers College.


Summer Commencement [Program], August 21, 1952, Iowa State Teachers College Aug 1952

Summer Commencement [Program], August 21, 1952, Iowa State Teachers College

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.


Iowa State Teachers College Courses Of Instruction And Program, Summer 1952, Iowa State Teachers College Jul 1952

Iowa State Teachers College Courses Of Instruction And Program, Summer 1952, Iowa State Teachers College

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Teachers College.


Spring Commencement [Program], June 7, 1952, Iowa State Teachers College Jun 1952

Spring Commencement [Program], June 7, 1952, Iowa State Teachers College

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.


The Sixty-Fourth Session Of The Iowa Academy Of Science And The Nineteenth Convention Of The Junior Academy Of Science Of Iowa, April 18 And 19, 1952, Iowa Academy Of Science Apr 1952

The Sixty-Fourth Session Of The Iowa Academy Of Science And The Nineteenth Convention Of The Junior Academy Of Science Of Iowa, April 18 And 19, 1952, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.


Iowa State Teachers College Schedule Of Classes, Spring 1952, Iowa State Teachers College Apr 1952

Iowa State Teachers College Schedule Of Classes, Spring 1952, Iowa State Teachers College

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Teachers College.


Dali's Condolences Sent To Queen, The College Eye, February 15, 1952 Feb 1952

Dali's Condolences Sent To Queen, The College Eye, February 15, 1952

Noteworthy People of UNI Documents

Herbert V. Hake attended graduate school at the University of Iowa, where he earned his master's degree in scenic design in 1933. In the summer of 1936, he began his career at the Iowa State Teachers College (ISTC) with the Theater Department. From 1938 to 1942 he served as technical director, scenic designer, and instructor of speech courses. He was a pioneer in radio and television.


Behind The Desk Feb 1952

Behind The Desk

iowa state teachers college magazine

No abstract provided.


Front Cover And List Of Names Feb 1952

Front Cover And List Of Names

iowa state teachers college magazine

No abstract provided.


Macropseudogynes (Or Pterergates?) In Formica Fossaceps Buren (Formicidae), R. L. King, R. M. Sallee Jan 1952

Macropseudogynes (Or Pterergates?) In Formica Fossaceps Buren (Formicidae), R. L. King, R. M. Sallee

Proceedings of the Iowa Academy of Science

Large worker ants with vestigial wings were found in certain colonies of Formica fossaceps Buren at the Iowa Lakeside Laboratory near Milford, Iowa. This paper deals with one of these colonies (49F), found on the Laboratory grounds, June 15. 1949; vestigial winged workers were present in considerable numbers in this colony. Extensive collections were made: in 1949, a total of 1414 workers, 117 (8.3%) with vestigial wings; in 1950, 9 males and 539 workers, 32 (5.9%) with vestigial wings; the colony was not found in 1951. The total number of workers was 1953, of which 119 (7.6%) had vestigial …


College Catalog 1951-1952, Iowa State Teachers College Jan 1952

College Catalog 1951-1952, Iowa State Teachers College

UNI Programs and Courses Catalogs

Table of Contents:

Admission to College ... 38
Application for Admission ... 3
Certificates for Teaching ... 46
College Courses ... 96
Curricula ... 58
Dining Rooms ... 22, 25, 28
Dormitories ... 24, 26
Employment of Students ... 29
Enrollment and Registration ... 42
Exemption from Fees ... 30
Extra-Curricular Activities ... 33
Fees ... 43
Graduate Study ... 194
Loan Funds ... 29
Major Lines of Work Offered ... 58
Medical Service ... 36, 44
Placement Bureau ... 35
Requirements for Graduation ... 46, 47
Room and Board ... 24
Rooming Houses ... 26, 28
Scholarships ... 30 …


Congenital Abnormalities Associated With Vitamin E Malnutrition, Byron H. Thomas, Dorothy Wei Cheng Jan 1952

Congenital Abnormalities Associated With Vitamin E Malnutrition, Byron H. Thomas, Dorothy Wei Cheng

Proceedings of the Iowa Academy of Science

Congenital abnormalities are known to occur occasionally in man and farm livestock, and frequently in laboratory animals subjected to certain types of experimentation. A high percentage of the cases are fatal to the young depending on the nature and severity of the complications. In many instances death of the affected young occurs during pregnancy or parturition. Should the feti survive parturition death usually follows shortly thereafter. Extended survival occurs in a small percentage of young and these are mildly to severely handicapped in one or more of a multiplicity of ways. There are many causes of congenital abnormalities. Some are …


Some Lichens From Southern Colorado, James H. Craft Jan 1952

Some Lichens From Southern Colorado, James H. Craft

Proceedings of the Iowa Academy of Science

The cryptogams of the San Juan and Sangre de Cristo mountains of southern Colorado have not attracted the attention of many botanists during the past half century. The published ecological and floristic studies of North American cryptogams show few records from any portion of Colorado further south than Pike's Peak. Llano (2) and Thomson (3) make but incidental mention of lichens collected by visitors in 1899, 1937, and 1942. The collections listed below constitute a material addition to this very meagre record. All these specimens, collected in the period between February, 1950-September, 1951, were found at altitudes between 7600 and …