Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Education (15477)
- Arts and Humanities (6838)
- Higher Education (5891)
- Social and Behavioral Sciences (4360)
- Science and Mathematics Education (4046)
-
- Creative Writing (2244)
- Music (2127)
- Music Performance (1848)
- Physical Sciences and Mathematics (1726)
- Life Sciences (1547)
- English Language and Literature (1367)
- Curriculum and Instruction (1034)
- Educational Leadership (902)
- Medicine and Health Sciences (797)
- Anthropology (769)
- Library and Information Science (687)
- Educational Administration and Supervision (531)
- Public Affairs, Public Policy and Public Administration (491)
- Sociology (457)
- Psychology (452)
- Art and Design (448)
- Communication (439)
- Health and Physical Education (418)
- Language and Literacy Education (408)
- Engineering (376)
- Literature in English, North America (354)
- History (346)
- Geography (331)
- Poetry (325)
- Fiction (321)
- Keyword
-
- Concert program--Iowa--Cedar Falls; (1732)
- University of Northern Iowa. Faculty Senate; University of Northern Iowa--Faculty; (1280)
- Graduate Council (400)
- University of Northern Iowa; University of Northern Iowa Graduate College; (400)
- School--Iowa--Cedar Falls; (395)
-
- Iowa (301)
- School administrators--Attitudes; Teacher-administrator relationships; Student-administrator relationships; (242)
- Postville (216)
- University of Northern Iowa. International Students and Scholars Office--Periodicals; University of Northern Iowa--Foreign students--Periodicals; (214)
- German American newspapers--Iowa--Waverly; Newspapers--Iowa--Waverly; (174)
- University of Northern Iowa--Curricula; Schedules (174)
- American--Iowa--Cedar Falls; University of Northern Iowa; (164)
- University of Northern Iowa. Library--Periodicals; University of Northern Iowa--Students--Services for--Periodicals; College students--Services for--Iowa--Cedar Falls--Periodicals; (156)
- Commencement ceremonies--Iowa--Cedar Falls; University of Northern Iowa--Periodicals; (153)
- University of Northern Iowa--Periodicals; (152)
- Postville Immigration Raid (150)
- Iowa Waste Reduction Center--Periodicals; Waste minimization--Iowa--Periodicals; (141)
- Malcolm Price Laboratory School--Periodicals; (136)
- Iowa State Teachers College--Curricula; University of Northern Iowa--Curricula; Schedules (131)
- Iowa State Teachers College--Periodicals; University of Northern Iowa--Periodicals; (126)
- Commencement ceremonies--Iowa--Cedar Falls; Iowa State Teachers College--Periodicals; University of Northern Iowa--Periodicals; (122)
- University of Northern Iowa Secondary Teacher Education Senate; (121)
- UNI ScholarWorks--Statistics--Periodicals; (119)
- University of Northern Iowa Elementary Teacher Education Senate; (114)
- University of Northern Iowa. Office of International Engagement--Periodicals; University of Northern Iowa--Foreign students--Periodicals; (104)
- College verse (103)
- University of Northern Iowa. Faculty Senate; University of Northern Iowa--Faculty; (96)
- Geography--Study and teaching (Secondary); (88)
- University of Northern Iowa. Graduate College--Curricula; University of Northern Iowa--Graduate work; (84)
- Underground periodicals; (82)
- Publication Year
- Publication
-
- Proceedings of the Iowa Academy of Science (6507)
- Graduate Research Papers (4473)
- Dissertations and Theses @ UNI (2739)
- Iowa Science Teachers Journal (2308)
- Purple Pen (1874)
-
- Music Recital Programs (1759)
- Documents - Faculty Senate (1384)
- Iowa Journal of Communication (891)
- Honors Program Theses (859)
- Short Story (722)
- Journal of the Iowa Academy of Science: JIAS (702)
- Institute for Educational Leadership Monograph Series (566)
- Athletics Media Guides (471)
- Faculty Publications (415)
- Documents - Graduate Council (400)
- UNI Schedule of Classes (384)
- Postville Project Documents (363)
- Open Educational Resources (354)
- Midwest: A Literary Review (339)
- UNI Commencement Programs (326)
- Science Bulletin (319)
- Institutional Effectiveness & Planning Documents (309)
- The Alumnus (225)
- UNIversitas: Journal of Research, Scholarship, and Creative Activity (224)
- ISSO Weekly Newsletter (214)
- Iowa Academy of Science Documents (199)
- Draftings In (189)
- UNI Response to COVID-19 (179)
- Library Documents & Reports (entire collection) (175)
- Waverly Phoenix (174)
- Publication Type
- File Type
Articles 29581 - 29610 of 35975
Full-Text Articles in Entire DC Network
Symphony, Donagene Runft
Application Of The Group Conference Method Of Teaching To Beginning Classes In Plant Pathology, I. E. Melhus, G. C. Kent
Application Of The Group Conference Method Of Teaching To Beginning Classes In Plant Pathology, I. E. Melhus, G. C. Kent
Proceedings of the Iowa Academy of Science
The teacher's ability to stimulate and to work with each student largely determines the value derived from a course by the student. The contact of teacher with the individual student is more difficult to effect in large classes (50 students or more) than in small classes. In the large classes a restraint and formality may prevail that are lacking in groups of 20 students or fewer.
A Basin Method Of Nut Tree Culture, J. M. Aikman, C. C. Lounsberry
A Basin Method Of Nut Tree Culture, J. M. Aikman, C. C. Lounsberry
Proceedings of the Iowa Academy of Science
Nut tree culture in Iowa is confined almost entirely too selected and grafted varieties of the black walnut, Juglan nigra L. This tree is one of the dominants of the Elm-Ash-Walnut Associes of the Deciduous Forest Formation of eastern United States. Its native habitat is the upper flood-plains of rivers, creeks and even intermittent streams. In spite of the fact that Iowa is near the western limit of its range, the walnut thrives in the rich alluvial soil of well drained but moist floodplains throughout the state and attains a size almost as great as it does farther east near …
Additions And Notes To The Bryophyte Flora Of Linn County, Iowa, R, V. Drexler
Additions And Notes To The Bryophyte Flora Of Linn County, Iowa, R, V. Drexler
Proceedings of the Iowa Academy of Science
Since the spring of 1942 numerous collections of bryophytes in the vicinity of Cedar Rapids have added several interesting and rare species to the known flora of Linn County. Most of these species are rather infrequent in the remainder of the state. From the vantage point gained with but a few years of collecting it can be said that forests and swamps on Lindley fine sand and fine sandy loam seem to be the most favorable bryophyte habitats at this time. Prairie bogs and the moist, rock-strewn, forested ravines at the Palisades State Park are also excellent collecting areas. Perhaps …
Comparison Of Dominant Prairie Grasses As Interplanting Ground Covers On Eroded Soil, J. M. Aikman, Robert E. Mcdermott
Comparison Of Dominant Prairie Grasses As Interplanting Ground Covers On Eroded Soil, J. M. Aikman, Robert E. Mcdermott
Proceedings of the Iowa Academy of Science
Experiments were initiated in 1938 for the purpose of studying vegetative ground covers. This series of investigations was undertaken as the basis for studies in the integration of herbaceous and woody plants which constitute an important phase of the research in progress at the Floris Field Station of the Iowa Cooperative Hillculture Project. The herbaceous plants used at the station in these studies of integration with woody plants may be classified in three groups: natural weed covers, legumes and grasses.
Trials And Tribulations Of A Room Orderly, George W. Coleman
Trials And Tribulations Of A Room Orderly, George W. Coleman
Purple Pen
No abstract provided.
Linocut, Harriet Jordan
The Iowave [Class Magazine], December 1943, United States. Naval Reserve. Women's Reserve.
The Iowave [Class Magazine], December 1943, United States. Naval Reserve. Women's Reserve.
The IOWAVE [class magazine]
The IOWAVE was a magazine focused on the activities of the WAVES (Women Accepted for Volunteer Emergency Service) who were being trained at the Naval Training School temporarily located on the campus of Iowa State Teachers College (later the University of Northern Iowa). The IOWAVE magazine includes many photos of the day-to-day life of the WAVES trainees.
The Iowave [Newspaper], December 17, 1943, United States. Naval Reserve. Women's Reserve.
The Iowave [Newspaper], December 17, 1943, United States. Naval Reserve. Women's Reserve.
The IOWAVE [newspaper]
The IOWAVE was a newspaper focused on the activities of the WAVES (Women Accepted for Volunteer Emergency Service) who were being trained at the Naval Training School temporarily located on the campus of Iowa State Teachers College (later the University of Northern Iowa). The IOWAVE newspaper includes many articles regarding the day-to-day life of the WAVES trainees, as well as articles chronicling the ongoing progress of the war effort.
Story From Marie, Sarah Nelson
Strike-Out, Myrna Brechbiel
Air Scouting, The Boy, And The Air Age, I. R. Ellenberg
Air Scouting, The Boy, And The Air Age, I. R. Ellenberg
Purple Pen
No abstract provided.
A Supplication, Maydean M. Weaver
Reports - Standing Committees Of The Iowa Academy Of Science
Reports - Standing Committees Of The Iowa Academy Of Science
Proceedings of the Iowa Academy of Science
No abstract provided.
In Memoriam: Joseph Charles Arthur; James Frederick Clarke; Alice Louise Braunworth Halstead; Charles Rollin Keyes; Nicholas Knight; Henry S. Nollen; John Franklin Reilly; Luther S. Ross, Joseph C. Gilman, Cornelius Gouwens, E. J. Cable, Charles R. Keyes, George Pease
In Memoriam: Joseph Charles Arthur; James Frederick Clarke; Alice Louise Braunworth Halstead; Charles Rollin Keyes; Nicholas Knight; Henry S. Nollen; John Franklin Reilly; Luther S. Ross, Joseph C. Gilman, Cornelius Gouwens, E. J. Cable, Charles R. Keyes, George Pease
Proceedings of the Iowa Academy of Science
No abstract provided.
Two Notable Plant Hybrids From Alaska, J. P. Anderson
Two Notable Plant Hybrids From Alaska, J. P. Anderson
Proceedings of the Iowa Academy of Science
Hybrids are known to occur in nature, but they are generally between closely related species and give rise to fertile offspring which often make the taxonomy of the group difficult. Natural hybrids that give rise to sterile forms are not so common. The purpose of this paper is to put on record two such hybrids observed in Alaska.
Illustrations Of The Fleshy Fungi Of Iowa V. The Pink-Spored Agarics, Joseph C. Gilman
Illustrations Of The Fleshy Fungi Of Iowa V. The Pink-Spored Agarics, Joseph C. Gilman
Proceedings of the Iowa Academy of Science
This series of illustrations of the fleshy fungi of Iowa was started in 1940 in the Iowa Academy of Science Proceedings. At that time the purple-brown-spored forms were treated. Later the white-spored (1941), black-spored agarics (1942), and the fleshy ascomycetes (1942) have been covered. In this contribution illustration is made of three species of pink-spored agarics, Volvaria bombycina, Entoloma griseum and Pluteus cervinus, and an interesting abnormal form of the last named species.
Thirty-Five Iowa Mosses, Henry S. Conard
Thirty-Five Iowa Mosses, Henry S. Conard
Proceedings of the Iowa Academy of Science
In 1938 "One Hundred Iowa Mosses" (1) were distributed to ten herbaria. In that distribution Number 4, "Anomodon viticulosus" was wrongly identified. The plant is Anomodon minor (Beauv.) Lindb., like the figure in Sullivant's Icones, pl. 74. Much more common in Iowa is a smaller form, everywhere on trees, distributed as No. 2. To avoid such confusion as I fell into, this form should probably be named and entered in the manuals. Number 44 "Fissidens viridulus" had better be referred to F. minutulus Sull., according to the Moss Flora of North America (3). Number 62 " …
The Effect Of The Great Drought Of 1934 On The Leaf Structure Of Certain Iowa Plants, F. M. Turrell, Margaret E. Turrell
The Effect Of The Great Drought Of 1934 On The Leaf Structure Of Certain Iowa Plants, F. M. Turrell, Margaret E. Turrell
Proceedings of the Iowa Academy of Science
By August, 1934, it was evident that the Middle West had been through the greatest drought in its recorded weather history. This drought, which began in June, 1933, was the driest twelve-month period ever recorded for Indiana, Illinois, Wisconsin, Minnesota, Iowa, Missouri, Nebraska, and the Dakotas (Kincer, 1934b).
Germination Studies Of The Seeds Of Some Common Weeds, John N. Martin
Germination Studies Of The Seeds Of Some Common Weeds, John N. Martin
Proceedings of the Iowa Academy of Science
The germination of the seeds of weeds and other plants that reseed themselves is noticeably periodic. In some species the grand period of germination closely follows the rise in temperature above freezing and the thawing of the soil in the spring while in other species germination is delayed till late spring or summer, and in the case of winter annuals the seeds germinate mainly in the fall.
The Use Of 2-Chlorophenoxyacetyl Chloride In The Preparation Of Mixed Diacyl Derivatives Of Ortho Aminophenols, Paul H. Bacher, L. Chas. Raiford
The Use Of 2-Chlorophenoxyacetyl Chloride In The Preparation Of Mixed Diacyl Derivatives Of Ortho Aminophenols, Paul H. Bacher, L. Chas. Raiford
Proceedings of the Iowa Academy of Science
Raiford and coworkers (1) have proved by a long series of experiments that when two acyl radicals, R-Ć=O and R'-Ć =O, are introduced into an ortho aminophenol only one mixed diacyl derivative can generally be obtained, regardless of the order of introduction of the radicals; and in this product the heavier and more acidic of these groups is usually found attached to nitrogen. To meet this requirement the migration of acyl from nitrogen to oxygen must occur in one of these reactions. If the acyls are R-Ć=O and R-0-Ć=O the latter is most frequently found on nitrogen.
Some Binary Systems With Acetamide, Ben H. Peterson
Some Binary Systems With Acetamide, Ben H. Peterson
Proceedings of the Iowa Academy of Science
This investigation was carried out with the aid of the Research Grant of the Iowa Academy of Science. The unusual solvent character of molten acetamide has been reported by Stafford1. As a solvent for inorganic salts it is very similar to water. The conductance of salts dissolved in acetamide closely resembles that of aqueous solutions2. Organic compounds with the exception of some aromatic hydrocarbons are very soluble in molten acetamide. The higher normal amides are quite similar in their solvent properties. In this investigation the freezing point-composition diagrams have .been determined for the binary systems, acetamide …
Simple Proof Of Wüllners Vapor Pressure Law, Le Roy D. Weld
Simple Proof Of Wüllners Vapor Pressure Law, Le Roy D. Weld
Proceedings of the Iowa Academy of Science
It is well known that the vapor pressure of a solvent liquid is lowered by dissolving a nonvolatile solute in it. The experiments of Wiillner (Pogg. Ann. 110, 56. 1860) indicated that if the solute is nonvolatile, nonelectrolytic, and without chemical action on the solvent, the vapor pressure of the solvent is lowered by an amount proportional to the concentration of the solute; concentration being in this case defined as the ratio of the mass of the solute to the mass of the whole solution, i.e., the mass fraction. Nearly thirty years after Wiillner's work, Raoult (Zeits. Phys. Chem. 2, …
The Attention Value Of Color Evaluated By Means Of Ocular Photography, Herman F. Brandt
The Attention Value Of Color Evaluated By Means Of Ocular Photography, Herman F. Brandt
Proceedings of the Iowa Academy of Science
Innumerable research studies have been made to evaluate the intensity of color. The general consensus of opinion is that color has attentional advantages over black and white, and in order to gain and sustain attention a bit of chroma thrown in will generally solve the problem. The purpose of this study was to evaluate by means of ocular photography. The attensity of red as compared to black and white of a given field. Fifty subjects were selected at random to observe an exposure card, while their eye movements were photographed. Two advertisements, one in color and the other in black …
A Study In The Use Of A Graphic Rating Scale, Dorothy Akerman, Mary Ellen Worster, Mack T. Henderson
A Study In The Use Of A Graphic Rating Scale, Dorothy Akerman, Mary Ellen Worster, Mack T. Henderson
Proceedings of the Iowa Academy of Science
This study was undertaken for the purpose of determining to what extent an individual's self-rating agrees with the ratings his friends give him. In addition, an attempt was made to summarize the personality of an individual from the rating scale data.
Myxoporidian Parasites From The Gills Of Some Fishes Of The Okoboji Region, Verne J. Rice, Theodore L. Jahn
Myxoporidian Parasites From The Gills Of Some Fishes Of The Okoboji Region, Verne J. Rice, Theodore L. Jahn
Proceedings of the Iowa Academy of Science
The Myxosporidia are protozoan parasites which infect various/ 7 lower groups of vertebrates, and which cause several serious epidemic diseases of fishes (Kudo, 1920, 1939). The purpose of the present papers is to describe some of the species of Myxosporidia which have been found parasitizing fishes of the Okoboji region. The present study includes only the Myxosporidia found on the gills. The internal organs were also examined, but the results of these examinations are reported in a separate paper (Otto and Jahn, 1943).
Internal Myxosporidian Infections Of Some Fishes Of The Okoboji Region, George R. Otto, Theodore L. Jahn
Internal Myxosporidian Infections Of Some Fishes Of The Okoboji Region, George R. Otto, Theodore L. Jahn
Proceedings of the Iowa Academy of Science
Protozoa of the order Myxosporidia are primarily parasites of fishes, and no major group of fishes is entirely free from infection. Apparently most species of Myxosporidia do not produce serious pathological changes. However, some of the most destructive diseases of fish, such as the "wormy" halibut of the Pacific coast of North America; the "boil" disease of barbel in European waters; and the "twist" disease of salmonoid fish, are caused by myxosporidian infection. These infections are often fatal and sometimes occur in epidemic form. The life history of the myxosporidia has been discussed by Kudo (1920, 1939). The present paper …