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Articles 1441 - 1470 of 1662

Full-Text Articles in Anthropology

A Summer Course In Invertebrate Developmental Biology At Iowa Lakeside Laboratory: A Unique Experience, Carol W. Schutte, Dale J. Witt, Nicole Y. Janosek, Douglas E. Robinson, Edwin C. Powell, George G. Brown Jan 1990

A Summer Course In Invertebrate Developmental Biology At Iowa Lakeside Laboratory: A Unique Experience, Carol W. Schutte, Dale J. Witt, Nicole Y. Janosek, Douglas E. Robinson, Edwin C. Powell, George G. Brown

Journal of the Iowa Academy of Science: JIAS

The course, "Developmental Biology of Selected Invertebrates'', has been offered in alternate years at Iowa Lakeside Laboratory (Ill) on Lake West Okoboji, Dickinson County, Iowa, since the first summer session of 1983. This course has taken advantage of the great diversity of invertebrates found in the Ill area and has demonstrated to students and faculty alike the exciting phenomena and principles of developmental biology. The course is continuously evolving as new experiments and observations are discovered with each offering of the course.


Changes In A Prairie Bird Population From 1940 To 1989, Neil P. Bernstein, Kristine K. Baker, Sherry R. Wilmot Jan 1990

Changes In A Prairie Bird Population From 1940 To 1989, Neil P. Bernstein, Kristine K. Baker, Sherry R. Wilmot

Journal of the Iowa Academy of Science: JIAS

We repeated a bird census of a prairie/field community that was done by Kendeigh (1941) in 1940. Changes in the bird populations were compared with changes in vegetation, agricultural land use for the county, and trends in urbanization. Grassland birds did decline in abundance due to causes similar to those cited in other studies. The increase in forest and edge nesting species was more unusual to this study, and probably correlated with the woody succession that had occurred.


Back Cover Jan 1990

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Interview With Craig Allen Smith (Fa 107), Manuscripts & Folklife Archives Nov 1989

Interview With Craig Allen Smith (Fa 107), Manuscripts & Folklife Archives

Folklife Archives Oral Histories

Transcription of interview with Craig Allen Smith conducted by Jeffrey Brian Hagan on 3 November 1989. From folk studies student project titled “Farming Folklore,” concerning farming traditions and practices in Kentucky.


Hagan, Jeffrey Brian (Fa 107), Manuscripts & Folklife Archives Nov 1989

Hagan, Jeffrey Brian (Fa 107), Manuscripts & Folklife Archives

Folklife Archives Finding Aids

Finding aid and full-text scan of paper (Click on “Additional Files” below) for Folklife Archives Project 107. Farming folklore. Interviews, November 1, 3, 1989, with William M. Cecil and Craig Allen Smith concerning farm occupational lore and duties. Includes paper discussing collector's fieldwork experiences.


Gaudichaud’S Record Of Hawaiian Vernacular Names For Plants, Harold St. John Nov 1989

Gaudichaud’S Record Of Hawaiian Vernacular Names For Plants, Harold St. John

Pacific Studies

No abstract provided.


Barry Morton Gough's Review Of Robert Langdon's The Lost Caravel Re-Explored, Barry Morton Gough Nov 1989

Barry Morton Gough's Review Of Robert Langdon's The Lost Caravel Re-Explored, Barry Morton Gough

Pacific Studies

No abstract provided.


Interview With William M. Cecil (Fa 107), Manuscripts & Folklife Archives Nov 1989

Interview With William M. Cecil (Fa 107), Manuscripts & Folklife Archives

Folklife Archives Oral Histories

Transcription of interview with William M. Cecil conducted by Jeffrey Brian Hagan on 1 November 1989. From folk studies student project titled “Farming Folklore,” concerning farming traditions and practices in Kentucky.


Fur Is Out, Compassion Is In Oct 1989

Fur Is Out, Compassion Is In

Close Up Reports

HSUS campaign targets consumers


Remember The Elephants ... Forget Ivory Jul 1989

Remember The Elephants ... Forget Ivory

Close Up Reports

No abstract provided.


Virginia D. Watson's Review Of D. K. Feil's The Evolution Of Highland Papua New Guinea Societies, Virginia D. Watson Jul 1989

Virginia D. Watson's Review Of D. K. Feil's The Evolution Of Highland Papua New Guinea Societies, Virginia D. Watson

Pacific Studies

No abstract provided.


Animal Companions--The Promise Kept; The Problems Broken May 1989

Animal Companions--The Promise Kept; The Problems Broken

Close Up Reports

The powerful bond between people and dogs and cats is accompanied by serious ethical obligations on our part.


Investigators In Action Feb 1989

Investigators In Action

Close Up Reports

No abstract provided.


Plant-Parasitic Nematodes In Iowa, Don C. Norton Jan 1989

Plant-Parasitic Nematodes In Iowa, Don C. Norton

Journal of the Iowa Academy of Science: JIAS

Ninety-nine species of plant-parasitic nematodes are recorded from Iowa. Twenty-seven are new state records. Most samples were collected from around maize or from prairies or woodlands. Similarity (Sorensen's index) of species was highest for the maize-prairie habitats (0.49), compared with maize-woodlands (0. 23), or prairie-woodland (0. 3 7) habitats. Nematode communities were most diverse in prairies with a Shannon-Weiner index (H') of 2.74, compared with 1.65 and 1.07 for woodlands and maize habitats, respectively. Evenness of species (J') was 0.41, 0.78, and 0.48 for maize, prairies, and woodlands, respectively.


Front Matter Jan 1989

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Program Abstracts, 101st Session, Iowa Academy Of Science, April 21-22, 1989, Buena Vista College Jan 1989

Program Abstracts, 101st Session, Iowa Academy Of Science, April 21-22, 1989, Buena Vista College

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Annual Report Of The Iowa Academy Of Science, 1988-89, Paul E. Rider Jan 1989

Annual Report Of The Iowa Academy Of Science, 1988-89, Paul E. Rider

Journal of the Iowa Academy of Science: JIAS

Starting in 1976, annual reports have served as a continuing record of the activities of the Iowa Academy of Science. These augment a 100 year history of the Academy which was written in the centennial year of 1975.

This report covers the period from July 1, 1988 to June 30, 1989. It is based on the official records of the Academy (committee reports, Board minutes, correspondence) as well as the recollections, impressions and musings of the author, who is writing his first annual report.


Back Cover Jan 1989

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Estimates Of Genetic Variability In F2 Maize Populations, Geng-Chen Han, A. R. Hallauer Jan 1989

Estimates Of Genetic Variability In F2 Maize Populations, Geng-Chen Han, A. R. Hallauer

Journal of the Iowa Academy of Science: JIAS

Maize (Zea mays L.) breeders emphasize selection within F2 populations derived from crosses of inbred lines: Studies of the inheritance of quantitative traits in maize have been conducted primarily for generically broad-based populations. Objectives of our study were to estimate the generic variability in F2 populations developed from crosses of related and unrelated lines and to determine the effects of five generations of random intermating of plants within F2 populations on the estimates of genetic variability. Estimates of additive genetic variability were greater in the unrelated line crosses, but the estimates were not significantly different before and …


Back Cover Jan 1989

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Back Cover Jan 1989

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Semiquantitative Measurement Of Fission Produced Gamma Ray Radioactivity In Soils At Dubuque, Iowa, James A. Dockal, James A. Dockal Sr. Jan 1989

Semiquantitative Measurement Of Fission Produced Gamma Ray Radioactivity In Soils At Dubuque, Iowa, James A. Dockal, James A. Dockal Sr.

Journal of the Iowa Academy of Science: JIAS

Residual fission-product radionuclide contamination (fallout) in soils at Dubuque, Iowa was evaluated with an Exploration geometrics gamma ray scintillometer in 1985 and after the Chernobyl accident in 1986. Anomalous amounts of gamma ray radiation were found near where downspouts discharged storm runoff from the roof of a dwelling. The 1985 residual cesium-13 7 activity in the soils of the area was found to be 0.2 pCi/gram with an areal contamination of 16 ± nCi/m2. Activities associated with the soils near the discharge points of the downspouts ranged as high as 8 pCi/gram. This contamination seems to have occurred prior to …


Cytoplasmic Effect On Groat Protein Content In Lnterspecific Matings Of Avena Sativa L. And A. Sterilis L., A. Rezai, K. J. Frey Jan 1989

Cytoplasmic Effect On Groat Protein Content In Lnterspecific Matings Of Avena Sativa L. And A. Sterilis L., A. Rezai, K. J. Frey

Journal of the Iowa Academy of Science: JIAS

Thirty sets of reciprocal isopopulations, each with 20 Fi-derived oat lines from the BC0, BC1, and BC2 of all possible matings among five Awia slerilis L. accessions and two A. saliva cultivars, were evaluated in a replicated field trial to determine whether groat protein content was influenced by cytoplasmic inheritance and to study associations between protein content and agronomic traits. A. slerili cytoplasm had no direct effect on groat protein content, but significant interactions between the cytoplasms and nuclear genes from A. saliva and A. s1erilis were detected. Thus, the potential may exist for improving …


From The Gulf To The Rio Grande: Human Adaptation In Central, South, And Lower Pecos Texas, Thomas Hester, Stephen L. Black, D. Gentry Steele, Ben W. Olive, Anne A. Fox, Karl Reinhard, Leland C. Bement Jan 1989

From The Gulf To The Rio Grande: Human Adaptation In Central, South, And Lower Pecos Texas, Thomas Hester, Stephen L. Black, D. Gentry Steele, Ben W. Olive, Anne A. Fox, Karl Reinhard, Leland C. Bement

Karl Reinhard Publications

The South Texas area, Region 3 of the Southwestern Division, U.S. Army Corps of Engineers, is synthesized from archeological and bioarcheological perspectives. Three distinct geographic units within Region 3 are treated in detail: Central Texas Plateau Prairie, South Texas Plains, and Lower Pecos Canyonlands. More than 11,000 years of human adaptation are chronicled for this area, stretching from the Gulf of Mexico to the Rio Grande along the border with northeastern Mexico. Particular attention is devoted to a consideration of the region's prehistoric record; significant problems and data gaps are outlined. For the first time, a compilation has been done …


Front Matter Jan 1989

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Additions To The Iowa Pteridophyte Flora - Iii, James H. Peck Jan 1989

Additions To The Iowa Pteridophyte Flora - Iii, James H. Peck

Journal of the Iowa Academy of Science: JIAS

To prior reports on the studies of the Iowa pteridophyre flora, five taxa (Botrychium campestre Wagner & Farrar, Botrychimn matricariifolium A. Braun, CyJtopterislragilis (L) Bernh., Cystopteris laurentiana (Weath.) Blasdell, and Lycopodium inundatum L.) are added, along with 215 new county occurrence records for 39 taxa. Currently, the Iowa preridophyte flora consists of 70 taxa, supported with 1656 county occurrence records; only 72 (4%) of these records are based solely on collections made before 1950.


Biological Pesticides: Biotechnology's Answer To Silent Spring, Donald H. Dean Jan 1989

Biological Pesticides: Biotechnology's Answer To Silent Spring, Donald H. Dean

Journal of the Iowa Academy of Science: JIAS

In the 25 years since the publication of Rachel Carson’s Silent Spring the public has come to realize the environmental impact of heavy use of chemical pesticides. To add insult to injury, many insects, including the disease vector, the mosquito, are now virtually resistant to standard chemical pesticides. Biotechnology is now providing a positive response to these dilemmas through the production and development of improved forms of microbial pest control agents: biological pesticides. Biological pesticides are pathogens, or predators, of insects such as bacteria, fungi, and viruses, and predatory insects or vertebrates such as mosquito fish which reduce the population …


Questions And Discussion [The Scientist's Role In The Controversy Over Genetic Engineering, Regulation And Utilization Of Microorganisms: A Symposium], Arthur Weissinger Jan 1989

Questions And Discussion [The Scientist's Role In The Controversy Over Genetic Engineering, Regulation And Utilization Of Microorganisms: A Symposium], Arthur Weissinger

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 1989

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Cover - Table Of Contents Jan 1989

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.