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Articles 7951 - 7980 of 9065
Full-Text Articles in Entire DC Network
Reports: The Secretary; The Treasurer; The Editor; Committee Reports
Reports: The Secretary; The Treasurer; The Editor; Committee Reports
Proceedings of the Iowa Academy of Science
No abstract provided.
Officers, Past Presidents, And Members, Iowa Academy Of Science
Officers, Past Presidents, And Members, Iowa Academy Of Science
Proceedings of the Iowa Academy of Science
No abstract provided.
Presidential Address: Present Geological Research On Ground-Water Resources In Iowa, H. Garland Hershey
Presidential Address: Present Geological Research On Ground-Water Resources In Iowa, H. Garland Hershey
Proceedings of the Iowa Academy of Science
In the presidential address of 1938 before this Academy and in the presence of many of you, A. C. Trowbridge outlined our water problems with the thought that generally such problems can best be solved after they have been brought out into the open. He was correct in his thinking and many of the problems that he recognized are now on the way to solution. Our water situation has changed so vastly in the intervening 16 years that it is apropos again to examine it. However, the mass of data is now so great that I shall attempt to discuss …
A Study Of Student Achievement And Mortality In College Mathematics, Fred Robertson
A Study Of Student Achievement And Mortality In College Mathematics, Fred Robertson
Proceedings of the Iowa Academy of Science
This study was undertaken to obtain a clearer insight into the achievements and the mortality of entering freshmen in college mathematics. In the fall of 1952, one thousand and four (1004) students (nearly all freshmen) enrolled in the college algebra course at The Iowa State College. This study records their successes and failures as of the end of the winter quarter of 1954. Then they had had three quarters in their freshman year, (a summer quarter in 1953) and two quarters in the 1953-54 school year. For instructional purposes each of the 1004 entering freshmen were assigned to one of …
The Evaluation Of Their High School Experiences By The Alumni Of Shell Rock High School, 1945-1950, Sylvester L. Houdek
The Evaluation Of Their High School Experiences By The Alumni Of Shell Rock High School, 1945-1950, Sylvester L. Houdek
Dissertations and Theses @ UNI
The purposes of this study were (1) to ascertain to some degree, from the opinions and judgments of former Shell Rock High School students the value of subjects taken and activities participated in while in school; (2) to find out how generally effective t he school was in meeting student needs, and in preparing students to solve their problems after leaving school; and (3) to determine how better cooperation and understanding between the school and community might be developed.
Types Of Functions, Newton B. Smith
Types Of Functions, Newton B. Smith
Proceedings of the Iowa Academy of Science
Real functions of a real variable may be classified according as to whether or not they are continuous, neighborly, cliquish, or discriminative. The purpose of this paper is to investigate these properties, and to discover how they are related. In this paper X denotes the real continuum E1 or an interval, open or closed, contained in E1. The function f (x) is a function from the set X to a subset of E1. N denotes an arbitrary open interval in E1, and N (x) an arbitrary open interval containing the point x.
Reaction Kinetics Of The Alcoholysis Of Substituted Benzoyl Chlorides, B. R. Bluestein, Albert Hybl, Yoshimi Al Nishioka
Reaction Kinetics Of The Alcoholysis Of Substituted Benzoyl Chlorides, B. R. Bluestein, Albert Hybl, Yoshimi Al Nishioka
Proceedings of the Iowa Academy of Science
The reaction kinetics of the alcoholysis of substituted benzoyl chlorides was studied. The mechanism of the alcoholysis reaction, which is most generally accepted (1), shows that the overall reaction should be second-order and that the reaction should be first-order with respect to the acid chloride and first-order with respect to the alcohol. This rate study was carried out using a large excess of alcohol as the solvent, thus obtaining pseudo-first order rate constants, first-order with respect to the acid chloride only.
Q And L Difference Scores On The A.C.E. Test, Martin F. Fritz
Q And L Difference Scores On The A.C.E. Test, Martin F. Fritz
Proceedings of the Iowa Academy of Science
Those who have used the American Council on Education Psychological Examination (A.C.E.) will, no doubt, have noted that in a number of cases there is considerable difference between the Quantitative (Q) and the Linguistic (L) centile ranks. This report is concerned with an investigation to determine in a limited way, what significance there might be in the disparity of such scores. In the fall of 1953, 2500 new students entered Iowa State College for whom scores on the A.C.E. were available. From this group, all cases were selected where the Q and the L centile ranks differed by 50 or …
Some Methods And Materials For The Study Of Insects In The Intermediate Grades, Walter Eugene De Kock
Some Methods And Materials For The Study Of Insects In The Intermediate Grades, Walter Eugene De Kock
Dissertations and Theses @ UNI
The purpose of this study is twofold. First, the author is developing and describing some activities that may be carried out by teachers and pupils as they study insects and second, to describe simply constructed material that can be used in carrying out the activities.
1954 Little Panther, Iowa State Teachers College High School
1954 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 Formal Science Background Of Students Enrolled In General Science Classes In Dewitt High School, Charles O. Foreman
The Formal Science Background Of Students Enrolled In General Science Classes In Dewitt High School, Charles O. Foreman
Dissertations and Theses @ UNI
No abstract provided.
Iowa State Teachers College Schedule Of Classes, Fall 1953, Iowa State Teachers College
Iowa State Teachers College Schedule Of Classes, Fall 1953, 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.
The Alumnus, V37n3, September 1953, Iowa State Teachers College
The Alumnus, V37n3, September 1953, Iowa State Teachers College
The Alumnus
Inside This Issue:
-- New Alumni Director
-- 'Protecting Our Schools' is Theme for Lively Sessions at PR Workshop
-- Homecoming Set for Weekend of Oct. 31
-- Name New Associate Dean, Librarian
-- See You at ISEA Convention!
-- News Briefs
-- Staffers Assist in Publication of Series Dealing with Atomic Energy Education
-- Alumni Reunion Draws 252 to Campus
-- Keeping up With Alumni
-- Marriages
-- Births
-- Deaths
-- Mail Box
Summer Baccalaureate And Commencement [Program], August 16 & 17, 1953, Iowa State Teachers College
Summer Baccalaureate And Commencement [Program], August 16 & 17, 1953, 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 Schedule Of Classes, Summer 1953, Iowa State Teachers College
Iowa State Teachers College Schedule Of Classes, Summer 1953, 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 6, 1953, Iowa State Teachers College
Spring Commencement [Program], June 6, 1953, 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-Fifth Session Of The Iowa Academy Of Science And The Twentieth Convention Of The Junior Academy Of Science Of Iowa, April 17 And 18, 1953, Iowa Academy Of Science
The Sixty-Fifth Session Of The Iowa Academy Of Science And The Twentieth Convention Of The Junior Academy Of Science Of Iowa, April 17 And 18, 1953, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Iowa State Teachers College Schedule Of Classes, Spring 1953, Iowa State Teachers College
Iowa State Teachers College Schedule Of Classes, Spring 1953, 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.
The Alumnus, V37n1, February 1953, Iowa State Teachers College
The Alumnus, V37n1, February 1953, Iowa State Teachers College
The Alumnus
Inside This Issue:
-- Classes of 1903, 1928 to be Honored at Annual Spring Reunion, May 31
-- We've lost track of a few
-- Professional Advancement
-- Iowa's Investment in Teachers College
-- Should Iowa Set Up and Operate an Educational Television Network in the Public Interest?
-- Panther Sports Parade
-- Keeping up With Alumni
-- Marriages
-- Births
-- Deaths
-- Mail Box
-- Summation of Locations
Iowa State Teachers College Schedule Of Classes, Winter 1952-53, Iowa State Teachers College
Iowa State Teachers College Schedule Of Classes, Winter 1952-53, 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.
Proceedings Of The Sixty-Fifth Meeting Of The Iowa Academy Of Science Held At Cornell College, Mt. Vernon, Iowa, April 17 And 18, 1953: Minutes Of The 1953 Meeting
Proceedings of the Iowa Academy of Science
No abstract provided.
1953 Old Gold, Iowa State Teachers College
1953 Old Gold, Iowa State Teachers College
UNI Yearbooks
The student yearbook of the Iowa State Teachers College, later known as the University of Northern Iowa.
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.
The Determination Of Calcium-Magnesium Ratios In Sedimentary Rocks, Donald C. Boardman
The Determination Of Calcium-Magnesium Ratios In Sedimentary Rocks, Donald C. Boardman
Proceedings of the Iowa Academy of Science
The study of elastic sediments has been basic work for most geologists. Field descriptions tell the kind of rock, its color, its texture, how it is bedded, and its mineral and organic content. In the laboratory more exact mechanical and mineralogical analyses are made to add to the statistics. Among the laboratory analyses insoluble residue studies have been a valuable tool in research on the clastic sediments and the analysis of samples to determine the insoluble percentages has been systematized so that highly skilled technicians are not required to perform most of the work. As a result many thousands of …
Generalizations Of Continuity, Buchanan Cargal
Generalizations Of Continuity, Buchanan Cargal
Proceedings of the Iowa Academy of Science
Let X be a Hausdorff space in which each neighborhood an inexhaustible set (a set of Baire's second category), and let {N} denote the system of neighborhoods in X. Thus N (x) is a neighborhood of the element x. Let Y be a regular separable Hausdorff space and let {M} denote the system of neighborhoods in Y. If f is a function on X into Y and ξ is a point of X, then f is continuous at ξ if for every M(f(ξ)) and for every N(ξ), the set N(ξ) E[x:f (x) εM (f (ξ))] contains ξ as an …
Navigation Instruction Of Naval Officer Candidates, John O. Chellevold
Navigation Instruction Of Naval Officer Candidates, John O. Chellevold
Proceedings of the Iowa Academy of Science
The title of this paper has appeared in two forms. First as "Mathematics of Navigation" and then as given above. We shall limit the presentation to a discussion of some topics in mathematics which the Naval Officer Candidate has need of, most of them wish they had been exposed to, or which are required for an understanding of navigation. These remarks are based on several years’ experience with Midshipmen during World War II and four summers with the Navigation Department of Reserve Officer Candidate School beginning in the summer of 1949. Our thinking is directed largely to surface navigation but …
A Proposed Design For Utilizing School-Made Photographic Slides In The Secondary School, Everett G. Brower
A Proposed Design For Utilizing School-Made Photographic Slides In The Secondary School, Everett G. Brower
Dissertations and Theses @ UNI
This study is concerned with photography as a means . of constructing supplemental instruction materials. The study was designed to appeal to the educator who is concerned with vitalizing and extending the educational program of the school. Photography has been generally accepted as a worth-while leisure time activity for society, and recently educators have begun to realize its value as a teaching medium. The terms motion picture and audio-visual education have become almost synonymous. As a result, many of the simpler teaching aids have been neglected and have been relegated to undeserved minor importance. However, the use of the simpler …
Reports: The Secretary; The Treasurer; The Editor; Committee Reports
Reports: The Secretary; The Treasurer; The Editor; Committee Reports
Proceedings of the Iowa Academy of Science
No abstract provided.
Officers, Past Presidents, And Members, Iowa Academy Of Science
Officers, Past Presidents, And Members, Iowa Academy Of Science
Proceedings of the Iowa Academy of Science
No abstract provided.
A Cryptographic Machine, Harry Goheen
A Cryptographic Machine, Harry Goheen
Proceedings of the Iowa Academy of Science
In a recent textbook (1) on the theory of numbers Professor B. M. Stewart suggests the usefulness of the algebra of matrices over a finite field for encoding messages. The procedure is as follows. First the message is written as a normal message. Then each letter of the alphabet and each punctuation mark is associated with an element of a finite field F. Then the message is broken up into blocks, each block being a square matrix, and each matrix is premultiplied (or postmultiplied) by a non-singular scrambling matrix C whose elements are in the field, F. Each resulting matrix …