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Articles 1291 - 1320 of 1662

Full-Text Articles in Anthropology

Advances In Biomolecule Analysis: Ftms Of Macromolecules, Curtiss D. Hanson, Ira M. Simet, Suzanne R. Smith Jan 1993

Advances In Biomolecule Analysis: Ftms Of Macromolecules, Curtiss D. Hanson, Ira M. Simet, Suzanne R. Smith

Journal of the Iowa Academy of Science: JIAS

The development of Fourier transform ion cyclotron resonance (FT-ICR) as an analytical technique has opened new avenues to the analysis of high molecular weight biomolecules. Because mass analysis is based on a detection of a frequency, it is possible to obtain high resolution mass measurements without sacrificing sensitivity. The unique ability to analyze high mass ions is based in the design of a passive ExB ion trap. Although in the past, field inhomogeneities have limited this technique, recent developments in both trap designs and excitation techniques have resulted in major improvements in both sensitivity and resolution.


Cover - Table Of Contents Jan 1993

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Fight Fur Now! Oct 1992

Fight Fur Now!

Close Up Reports

No abstract provided.


Temporal And Spatial Dietary Variability In The Prehistoric Lower And Middle Osmore Drainage: The Carbon And Nitrogen Isotope Evidence, Karin L. Sandness Aug 1992

Temporal And Spatial Dietary Variability In The Prehistoric Lower And Middle Osmore Drainage: The Carbon And Nitrogen Isotope Evidence, Karin L. Sandness

Department of Anthropology: Theses and Student Research

Skeletal material from six sites representing human occupation in the Osmore drainage of southern Peru, circa A.D. 50 to 1400, was analyzed for carbon and nitrogen isotopes. The δ13C and δ15N values observed in the study indicate-spatial and temporal variability in diet. Specimens from the lower valley are, in general, more positive in both carbon and nitrogen than those of the middle valley, with the most positive values being present in specimens from the coastal Chiribaya site, San Geronimo. The data suggest, however, that all populations in the drainage experienced shifts in diet through time. Samples …


The Suburban Rice Farmers: Economic And Cultural Change In Japan, Makoto Chiwaki Jun 1992

The Suburban Rice Farmers: Economic And Cultural Change In Japan, Makoto Chiwaki

Masters Theses

The world economic situation is forcing the Japanese government to initiate policies designed to make its rice farming industry more competitive on the world market. These new policies, along with the growth of Japan's urban areas, are causing certain stresses on the cultural institution called bunke among the part-time rice farmers in the Kaizuka region of Chiba City, Japan.

An ethnographic study of these farmers reveals that the farmers of the Kaizuka region have responded to recent changes differently from the farmers of other regions because of their cultural institutions and traditions.


Reversing The Count May 1992

Reversing The Count

Close Up Reports

No abstract provided.


Ua68/6/1 Broomsedge Chronicles: Farm Living In South Central Kentucky, Wku English, Wku Glasgow Apr 1992

Ua68/6/1 Broomsedge Chronicles: Farm Living In South Central Kentucky, Wku English, Wku Glasgow

WKU Administration Documents

A collection of essays written by English 100 Freshman Composition and English 200 Introduction to Literature students attending WKU Glasgow from 1983 through 1992 taught by Loretta Murrey. Student authors are: Joyce Alford, Joyce Amer, Jeff Ballard, Sandie Barrick, Jerry Bean, Shela Bingham, Brent Bledsoe, Steven Bunch, Billy Carver, Angela Cowan, Karen Decker, Betty Dillahay, Dibbie Dilley, Amy Doyel, Jeff Duncan, Craig Emmitt, Barbara England, Kathy Fancher, Amanda Gillon, Michelle Glover, Jeanelle Gooch, Faye Johnson, Celena Martin, Sonia Martin, Tracy Mathews, Ila Moody, Angela Morris, William Myatt, Judy Parker, Dorothean Powell, Maria Pulanco, Diane Rather, Jennifer Reneau, LaDarra Rich, Pam …


Floristic Composition And Conservation Status Of Fens In Iowa, John A. Pearson, Mark J. Leoschke Jan 1992

Floristic Composition And Conservation Status Of Fens In Iowa, John A. Pearson, Mark J. Leoschke

Journal of the Iowa Academy of Science: JIAS

Over 200 extant fens of varying condition were documented during an extensive inventory conducted in Iowa between 1986 and 1991. Approximately half of the extant fens support endangered, threatened, special concern, or other rare plant species. Approximately 25 fens are outstanding conservation prospects with intact vegetation, high species richness, and rare species. Nearly 40% of all potential fen sites have been destroyed by cultivation or damage; another 30% remain unknown due to lack of a field visit, but most appear on aerial photographs to be very small, disturbed fragments. In addition to their traditionally recognized range in northwest Iowa, fens …


Front Matter Jan 1992

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


In Memoriam: Harold W. Beams (1903-1992), Richard G. Kessel Jan 1992

In Memoriam: Harold W. Beams (1903-1992), Richard G. Kessel

Journal of the Iowa Academy of Science: JIAS

Harold W. Beams, long time Professor of Biology at the University of Iowa, died at his home in Iowa City on January 26, 1992 after an illness of several months. Professor Bearns was born in Belle Plaine, Kansas on August 3, 1903. He received the B.A. Degree in 1925 from Wichita State University, the M.A. Degree in Zoology in 1926 from Northwestern University, and the Ph. D. Degree in Zoology in 1928 from the University of Wisconsin.


The Distribution Of Amphipods In Southeastern Minnesota And Their Relation To Water Quality And Land Use, James A. Muck, Raymond M. Newman Jan 1992

The Distribution Of Amphipods In Southeastern Minnesota And Their Relation To Water Quality And Land Use, James A. Muck, Raymond M. Newman

Journal of the Iowa Academy of Science: JIAS

The distribution of the amphipods Gammarus pseudolimnaeus and Hyalella azteca was determined from 97 designated trout streams in Minnesota, along with temperature, conductivity, and nitrate levels. Streams were classified into 4 land use/geology groups. G. pseudolimnaeus was found in 11 counties and at 123 of 168 sites in 83 of the 97 streams sampled. Hyalella azteca was found in 7 counties at 26 sites m 21 streams. Spearman rank correlations showed a high degree of correlation between nitrate (range: 0-11 mg N/L), conductivity (range: 325-870 μS/cm), and geology. The relative abundance of G. pseudolimnaeus was negatively correlated with nitrate, geology …


Geology Of Iowa Fens, C. A. Thompson, E. A. Bettis Iii, R. G. Baker Jan 1992

Geology Of Iowa Fens, C. A. Thompson, E. A. Bettis Iii, R. G. Baker

Journal of the Iowa Academy of Science: JIAS

Fens are peatlands which are dependent on groundwater discharge to provide nutrient enrichment. Fens are found in a variety of landscape positions and in most Iowa landform regions. This paper presents a classification system for Iowa fens based on landscape position, stratigraphy, and hydrologic factors. Iowa fens can be separated into six categories: 1) fens along valley wall slopes; the groundwater source for these fens is sand and gravel buried between glacial tills (inter-till); 2) fens in hummocky topography on the northwestern margin of the Des Moines Lobe landform region; the water source is sand and gravel buried within glacial …


The University Of Iowa Museum Of Natural History: An Historical Perspective, George D. Shrimper Jan 1992

The University Of Iowa Museum Of Natural History: An Historical Perspective, George D. Shrimper

Journal of the Iowa Academy of Science: JIAS

The 132-year record of UIMNH essentially mirrors historical and on-going trends in related institutions. As scholarship grew in the natural sciences during the 19th century, natural history museums became centers for scientific research. A "Golden Age" of museum-based expeditionary work and taxonomic research was marked at UI by the careers of curator/naturalists Calvin, Nutting, Macbride, and Shimek. Systematic biology and paleontology thrived with the accumulation of extensive collections. De-emphasis of "natural history" studies followed after 1920-30 with a concomitant growth in cellular and molecular biology. In seeking new directions and financial support, many museums, including UIMNH, shifted emphasis to public …


Checklist Of The Vascular Flora Of Page County, Iowa, Barbara L. Wilson Jan 1992

Checklist Of The Vascular Flora Of Page County, Iowa, Barbara L. Wilson

Journal of the Iowa Academy of Science: JIAS

The vascular flora of Page County, Iowa, was studied from 1987 through 1991. Seven hundred forty two species and four hybrids of vascular plants were found. A quarter of the flora consists of non-native species. Taxa not previously reported in Iowa include: Amsinckia intermedia, Brassica kaber, Cardaria chalapensis, Callirhoe bushii, Carex mesochorea, Eleocharis xyridiformis, Euphorbia prostrata, Lactuca saligna, Leontodon autumnalis, Scirpus mucronatus, Sclerochloa dura, and Vernonia arkansana.


Cover - Table Of Contents Jan 1992

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Necklace Radio Transmitter Attachment For Pheasants, Terry Z. Riley, Bruce A. Fistler Jan 1992

Necklace Radio Transmitter Attachment For Pheasants, Terry Z. Riley, Bruce A. Fistler

Journal of the Iowa Academy of Science: JIAS

We tested a pre-assembled, necklace-radio-transmitter-attachment design on female ring-necked pheasants (Phasianus colchicus) in northern Iowa. Birds were captured by nightlighting and bait trapping between September 1989 and March 1990. Radio transmitters were attached to 128 using a wire necklace. Two birds had problems adapting to the necklace, and 3 birds removed them. Twenty-three birds were still alive and wearing necklaces at the end of the study, for an average of 318 (SD= ± 52) days. Ease of attachment, long durability, light weight, and minimal bulk make the necklace an effective alternative to harness and poncho mounts.


Book Review: Landforms Of Iowa, Michael L. Thompson Jan 1992

Book Review: Landforms Of Iowa, Michael L. Thompson

Journal of the Iowa Academy of Science: JIAS

Many of us are interested in the landscape around us. We ask: Why is this hill so steep or why is that valley so wide? Why does my garden's soil have so much clay? Why does Iowa have no mountains' Landforms of Iowa should capture a broad audience of teachers, students, agriculturalists of all sorts, historians, homemakers, naturalists, botanists, biologists, foresters, geographers, civil engineers, as well as geologists and pedologists-in short, just about any Iowan who has ever wondered how and when the landscape at his or her doorstep or outside the car window was fashioned. Its stated purposes are …


Front Matter Jan 1992

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Fifty Years Of Fisheries Management M An Obstinate Prairie Lake, Dennis L. Scarnecchia, James R. Wahl Jan 1992

Fifty Years Of Fisheries Management M An Obstinate Prairie Lake, Dennis L. Scarnecchia, James R. Wahl

Journal of the Iowa Academy of Science: JIAS

Little Wall Lake, a shallow 104 ha glacial lake in Hamilton County, Iowa, has been manipulated for about 50 years by fishery managers in an attempt to provide a stable sport fishery. Managers have used dredging, water level manipulation, aquatic vegetation control, mechanical fish removal and fish eradication with toxicants, sport fish stocking, introduction of piscivorous fish, artificial habitat structures, and winter aeration. Attempts to stabilize the fishery have been unsuccessful, and because of overpopulation and stunting of panfishes, total fish eradications were conducted in 1977 and 1989. We review the history of management efforts on the lake, and suggest …


Back Cover Jan 1992

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 1992

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Back Cover Jan 1992

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Cover - Table Of Contents Jan 1992

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Front Matter Jan 1992

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


History Of Iowa Natural History - A Symposium, Neil P. Bernstein Jan 1992

History Of Iowa Natural History - A Symposium, Neil P. Bernstein

Journal of the Iowa Academy of Science: JIAS

This issue of the Journal of the Iowa Academy of Science presents the first written installment of our symposium: papers on the contributions of Keyes, Pammel, Bessey, and Hayden; the role of the Iowa Natural History Museum; and histories of both the development of early natural history studies and mammalogy investigations. More papers will follow in future issues, and new contributors are welcome.


Three Botanists: Bessey, Pammel, And Hayden, Duane Isely, Lois Tiffany Jan 1992

Three Botanists: Bessey, Pammel, And Hayden, Duane Isely, Lois Tiffany

Journal of the Iowa Academy of Science: JIAS

Bessey was a multidirectioned innovator and evangelist of botanical education, conservation, and scientific agriculture. For example, he initiated the first undergraduate laboratory using microscopes for botany instruciton and he had no peer as a botany teacher in the latter part of the 19th century. His enthusiasm about the natural history of Iowa and surrounding states broadened the horizons of innumerable students and he was one of the founders of the Iowa Academy of Science. An organization man, Bessey quickly became president of any group with which he became affiliated, and eventually was both nationally and internationally known through his text …


Mass Dependent Loss Of Resolution In Radially Inhomogeneous Exb Ion Traps, Mark A. Capron, Susan S. Haskin, Curtiss D. Hanson Jan 1992

Mass Dependent Loss Of Resolution In Radially Inhomogeneous Exb Ion Traps, Mark A. Capron, Susan S. Haskin, Curtiss D. Hanson

Journal of the Iowa Academy of Science: JIAS

ExB ion traps, such as Fourier transform Ion Cyclotron Resonance mass spectrometers (FY:ICR), mass analyze sample ions based on differences in their cyclotron frequencies in a homogeneous magnetic field. The high resolution mass measurements of FT-ICR are based on the relationship between the frequency of the cyclotron orbit and the mass-to-charge (m/q) ratio of an ion. Both the orbit and the frequency/mass relationship result from the radial forces on the ion. Ions trapped by inhomogeneous electric fields experience different magnitudes of the radial electric fields at different positions resulting in a positionally dependent frequency. Such differences in orbital frequencies for …


Parasitology As An Interpretive Tool In Archaeology, Karl J. Reinhard Jan 1992

Parasitology As An Interpretive Tool In Archaeology, Karl J. Reinhard

Karl Reinhard Publications

Parasitological studies of archaeological sites can be used to interpret past behavior and living conditions. During the 1980s problem-oriented research into prehistoric- and historical-period parasitism developed and resulted in thefield of archaeoparasitology. Archaeoparasitology attempts to integrate parasite data into archaeological theory and interpretation. Within the last decade, four major archaeoparasitological laboratories emerged. They developed interpretive frameworks that apply parasitological data to a remarkable variety of prehistoric behaviors. Parasite remains can be used to reconstruct aspects of diet, health, and other behaviors such as transhumance and trade. Finally. analysis of the distribution of parasite remains can be used to interpret aspects …


Vertebral Pathology In Prehistoric And Historic Skeletons From Northeastern Nebraska, Karin L. Sandness, Karl J. Reinhard Jan 1992

Vertebral Pathology In Prehistoric And Historic Skeletons From Northeastern Nebraska, Karin L. Sandness, Karl J. Reinhard

Karl Reinhard Publications

Vertebral pathology has long been a useful criterion for anthropologists in the assessment of activity patterns, stress, and general health of extinct peoples. This method of analysis, however, has never been applied to the peoples of the Nebraska Great Plains. This study is the first to concentrate on the indigenous Native Americans of this region, examining the spinal pathology present in the prehistoric and historic skeletal remains. Pathology present in the form of spondylolysis, Schmorl's nodes, osteophytosis (degenerative disc disease), and osteoarthritis (degenerative joint disease), provides evidence to suggest differing activity patterns and levels of stress in Plains groups before …


Cover - Table Of Contents Jan 1992

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.