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Articles 1141 - 1170 of 1662
Full-Text Articles in Anthropology
Cover - Table Of Contents
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Cover - Table Of Contents
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Additions To The Pteridophyte Flora Of Iowa-Iv, James H. Peck, Jeffrey C. Nekola, William Thomas
Additions To The Pteridophyte Flora Of Iowa-Iv, James H. Peck, Jeffrey C. Nekola, William Thomas
Journal of the Iowa Academy of Science: JIAS
This report updates field collection records and summarizes nomenclatural changes of genera and binomials of species of Iowa pteridophytes based on the Flora of North America project. Botrychium simplex var. compositum, Gymnocarpium jessoense (Koidz.) Koidz. spp. parvulum Sarvela, Gymnocarpium Xhrittonianum (Sarvela) Pryer & Haufler, and Gymnocarpium Xintermedium Sarvela were recently added to the state flora. The flora now consists of 66 species, plus 7 hybrids, and 1 distinct form, for a total of 74 taxa. With the addition of 81 new county occurrence records, the Iowa pteridophyte flora now consists of 1754 county occurrence records. A data matrix of species/county …
Midwestern Geology And Cornell College: The First 125 Years, Gene E. Hinman, Paul L. Garvin
Midwestern Geology And Cornell College: The First 125 Years, Gene E. Hinman, Paul L. Garvin
Journal of the Iowa Academy of Science: JIAS
The history of geology at Cornell College can be traced back almost to the college's beginnings. Though not the first to reach geology at Cornell, William Harmon Norton, more than any other person, shaped the Department of Geology and set it on its course of excellence. Born in 1856, the son of a Methodist minister, Norton developed an ardent interest in geology in his boyhood. A graduate of Cornell in Classics, Norton was hired by his alma mater in 1876 to reach Greek, bur his avocation was geology. He spent most of his spare time on weekends and during summers …
Book Review - The End Of Science: Facing The Limits Of Knowledge, David Lopatto
Book Review - The End Of Science: Facing The Limits Of Knowledge, David Lopatto
Journal of the Iowa Academy of Science: JIAS
The June, 1997 issue of Harper's Magazine included a list of recently published books that have titles beginning with "The End of". There are thirty-one titles on the list. Publishers have been rushing to cash in on the public's emotional reaction to the coming end of the century. It is difficult to take some of these works seriously. Perhaps the hardest thesis to swallow is that science, including physics, chemistry, biology, and neuroscience, not to mention the social sciences and the philosophy of science, is coming to an end just as our somewhat arbitrary calendar ticks over to a new …
Cover - Table Of Contents
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
A Search For Average, Extremes, And Runs Of Unusual Weather In Iowa, R. E. Carlson, D. P. Todey
A Search For Average, Extremes, And Runs Of Unusual Weather In Iowa, R. E. Carlson, D. P. Todey
Journal of the Iowa Academy of Science: JIAS
Temperature and precipitation during the past decade have exhibited wide variation throughout Iowa. Is this unusual? An attempt was made to answer this question by computing various statistical parameters that characterize variation in Iowa's long term climatic record. Absolute deviations were used to identify the most and least variable months and years since 1900. Overall, 1936 with a very cold winter and very warm summer was the least normal year. Runs of daily weather showed that heat and cold stress could often persist for more than 1 month. Runs of dry days were much longer than runs of wet days. …
Hot-Packaging Reduces Lipid Oxidation And Improves Sensory Characteristics Of Cooked Turkey Meat, Maiko Ishikawa, Dong U. Ahn
Hot-Packaging Reduces Lipid Oxidation And Improves Sensory Characteristics Of Cooked Turkey Meat, Maiko Ishikawa, Dong U. Ahn
Journal of the Iowa Academy of Science: JIAS
The effects of two vacuum packaging methods (hot and cold vacuum packaging) on the storage stability and sensory characteristics of cooked meat were compared. Ground turkey breast and leg meat patties were cooked, vacuum packaged appropriately, and stored up to 22 days. Lipid oxidation was measured by the thiobarbituric acid (TBA) test. In addition, Total aerobic count and sensory evaluation (flavor, juiciness, tenderness, overall acceptability) were conducted. There was no significant difference in aerobic plate count by packaging methods; however, panelist rating revealed that hot-packaged turkey leg meat had higher juiciness and overall acceptability scores than cold-packaged ones. Although TBARS …
Helminth Ova Recovered From Raptors Admitted For Rehabilitation, Shawn Hawks, Rick Klann
Helminth Ova Recovered From Raptors Admitted For Rehabilitation, Shawn Hawks, Rick Klann
Journal of the Iowa Academy of Science: JIAS
Fecal samples from 34 raptors admitted for rehabilitation were examined for helminth ova. All 34 birds, representing 13 different species, passed helminth ova in their feces. Six different types of helminth ova were identified, including strigeid trematode, cestode, Capillaria, Porrocaecum, Ascaridia and spiurid nematode. From this study, it appears that helminths, particularly tapeworms, are common parasites of raptors.
The Contributions Of J. A. Udden To An Understanding Of Iowa Geology, Richard C. Anderson
The Contributions Of J. A. Udden To An Understanding Of Iowa Geology, Richard C. Anderson
Journal of the Iowa Academy of Science: JIAS
Johan August Udden served on the faculty of Augustana College from 1888 until 1911. His research during that time was directed toward an understanding of the geology of areas close at hand, the region around Rock Island and nearby areas in Iowa and Illinois. Udden's most significant contributions to Iowa geology were in his treatment of 1) Paleozoic, Cretaceous, and Quaternary stratigraphy; 2) subsurface geology, including information on bedrock elevations and topography; 3) characteristics and origin of the loess. Most of this information was included in the Annual Reports of the Iowa Geological Survey published between 1899 and 1903. He …
Awards And Recognition, Iowa Academy Of Science, 1997
Awards And Recognition, Iowa Academy Of Science, 1997
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Book Review - Lost Landscapes And Failed Economies, Tom Vetter
Book Review - Lost Landscapes And Failed Economies, Tom Vetter
Journal of the Iowa Academy of Science: JIAS
In an intensive and methodical manner, Power casts doubt upon notions of environmental protection choking economic development. He demonstrates the fallacy of such a position and successfully advocates environmental protection as economically sound. The confusion that exists between the environment and the economy is largely the result of misguided convention.
Nesting Status Of The Cooper's Hawk In Iowa: 1988-1996, David. J. Conrads
Nesting Status Of The Cooper's Hawk In Iowa: 1988-1996, David. J. Conrads
Journal of the Iowa Academy of Science: JIAS
The Cooper's Hawk was once considered a common nesting species in Iowa. Organochlorine pesticides and their residues, along with habitat loss contributed to its decline throughout the Midwest after the 1940's. This species was classified as endangered in Iowa in 1984, but recent trends in nests found indicate that the population of these hawks has increased. Since April 1988, 53 nests have been discovered in Iowa. Due to the apparent population growth, this species was removed from Iowa's endangered species list in 1994.
Walking Thoughts, Hunter R. Rawlings Iii
Walking Thoughts, Hunter R. Rawlings Iii
Journal of the Iowa Academy of Science: JIAS
I've borrowed my title from a poem by Marvin Bell, a member of our Writers' Workshop, because I cannot think of state parks without thinking of my love for their hiking trails and the expansion of spirit they have brought me. State parks are more than nature preserves, more than recreational areas, though these functions are very important. They are also cultural and even spiritual resources, centers of emotional and psychic renewal.
Editorial Board & Iowa Academy Of Science Officers And Directors
Editorial Board & Iowa Academy Of Science Officers And Directors
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Editorial Board & Iowa Academy Of Science Officers And Directors
Editorial Board & Iowa Academy Of Science Officers And Directors
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Cultural Values Lower Redwood Creek, Susie Van Kirk
Cultural Values Lower Redwood Creek, Susie Van Kirk
Susie Van Kirk Papers
Levee construction on lower Redwood Creek from near its mouth to the mouth of Prairie Creek was completed by the Corps of Engineers in 1968, resulting in significant impairment of the estuary's hydrology and its biological functions. In an effort to reestablish those functions and more particularly the fisheries of the creek, Redwood National and State Parks is developing a plan for estuary management. The following general statement about cultural values in the project area and vicinity was prepared to expand the historical information in the draft plan.
A Relationship Between River Modification And Species Richness Of Freshwater Turtles In Iowa, Terry J. Vandewalle, James L. Christiansen
A Relationship Between River Modification And Species Richness Of Freshwater Turtles In Iowa, Terry J. Vandewalle, James L. Christiansen
Journal of the Iowa Academy of Science: JIAS
Comparisons were made of turtle populations in Red Rock Reservoir and the major rivers of the Mississippi River and Missouri River damage systems in Iowa. Of the inland rivers of the Mississippi drainage examined in this study, the Des Moines River had the least amount of remaining turtle habitat. Number of turtle species ranged from five in the Des Moines River to 11 in the Mississippi River, but only three species were found in Red Rock Reservoir. In the Missouri drainage, number of turtle species ranged from three in both the Little Sioux and Nishnabotna rivers to five in the …
Gender Differences In Attitudes Toward Animal Research, Jennifer J. Eldridge, John P. Gluck
Gender Differences In Attitudes Toward Animal Research, Jennifer J. Eldridge, John P. Gluck
Experimentation Collection
Although gender differences in attitudes toward animal research have been reported in the literature for some time, exploration into the nature of these differences has received less attention. This article examines gender differences in responses to a survey of attitudes toward the use of animals in research. The survey was completed by college students and consisted of items intended to tap different issues related to the animal research debate. Results indicated that women were more likely than men to support tenets of the animal protection movement. Likewise, women were more likely than men to favor increased restrictions on animal use …
Cover - Table Of Contents
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Pathogenicity Of Septoria Aquilina Isolated From Black Hills Bracken, A. Gabel, C. Salazar
Pathogenicity Of Septoria Aquilina Isolated From Black Hills Bracken, A. Gabel, C. Salazar
Journal of the Iowa Academy of Science: JIAS
Septoria aquilina, a pathogenic fungus isolated from Pteridium aquilinum growing in the Black Hills was studied from 1991-1995. S. aquilina sprayed at 8,000 conidia/ml on transplanted fronds followed by high humidity caused severe necrosis seven days after inoculation and disease severity increased until fronds died. Severe necrosis also developed from inoculations at 4,000 and 2,000 conidia/ml. Less severe symptoms developed from inoculations at 1,000 conidia/ml. Inoculations at 4,000 conidia/ml not followed by high humidity caused less necrosis than inoculations at the same concentration with high humidity. Inoculations at 4,000, 2,000, and 1,000 conidia/ml on fronds grown from spores caused similar …
A Potential Understory Flora For Oak Savanna In Iowa, Karl T. Delong, Craig Hooper
A Potential Understory Flora For Oak Savanna In Iowa, Karl T. Delong, Craig Hooper
Journal of the Iowa Academy of Science: JIAS
Oak savanna occurred in Iowa until the time of settlement and then was degraded rapidly. There were no scientific studies of savanna prior to, or after, settlement, and now no high-quality examples exist within the state. To identify those vascular plants adapted to live in the understory of savanna we examined regional and local flora for species that occurred in both prairie and broken woodland, and for species that occurred m both openings and forest. We then compiled a detailed description of the ecological range of habitats for each of these species. We identified 252 species (39 graminoids, 183 forbs, …