Anthropology Commons^™

Regulation Of Phytochrome Gene Expression, J. T. Colbert, S. A. Costigan, P. Avissar, Z. Zhao

Journal of the Iowa Academy of Science: JIAS

In etiolated oat seedlings exposure to red light results in a decrease in the transcription of the phytochrome genes, the abundance of phytochrome mRNA, and the level of phytochrome protein. Phytochrome itself serves as the photoreceptor for the response of decreased mRNA and transcription levels. The decrease in phytochrome mRNA is sensitive to low levels of Pfr. Even green "safelight" is capable of inducing a decrease in phytochrome mRNA abundance. Barley phytochrome mRNA abundance is also dramatically down-regulated in response to red light but other plant species vary in their ability to decrease phytochrome mRNA abundance after red light treatment. …

The Axr1 Mutation Of Arabidopsis Is Expressed 10 Booth Roots And Shoots, Cythia Lincoln, Mark Estelle

Journal of the Iowa Academy of Science: JIAS

In order to identify genes involved in auxin action we have isolated a number of mutants of Arabidopsis thaliana which are resistant co exogenous application of either indole-3-acetic acid or 2, 4-dichlorophenoxyacecic acid. One of the genes identified in chis way is the Axr1 gene. Recessive mutations in this gene confer resistance co auxin as well as a number of morphological defects. In this report we describe the isolation of at least two new axr1 alleles. In addition, we show that the axr1 mutation affects gravitropic growth of the root, auxin-induced ethylene biosynthesis and growth in tissue culture. Our results …

Part Ii - Regular Issue

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Results Of The August Roadside Survey For Upland Wildlife In Iowa: 1963-1988, Willie J. Suchy, Ronald J. Munkel, James M. Kienzler

Journal of the Iowa Academy of Science: JIAS

Results of the August roadside survey collected from 1963 through 1988 were examined to determine if trends could be detected in the counts of ring-necked pheasants (Phasianus colchicus), northern bobwhite (Colinus virginianus), gray partridge (Perdix perdix), cottontail rabbits (Sylvilagus floridanus), and white-tailed jackrabbits (Lepus townsendii). The counts also were compared to harvest estimates co determine if correlations exist. Statistically significant linear trends were detected statewide for pheasants, gray partridge and jackrabbits during the 1963 co 1988 period. Trends were downward for all species except gray partridge. During the late 12 years (1977 through 1988), the only significant trend detected was …

The Role Of Mechanical Injury In An Experimental Transmission Of Flexibacter Columnaris To Fingerling Walleye, Manzoor Hussain, Robert C. Summerfelt

Journal of the Iowa Academy of Science: JIAS

The role of mechanical injury in transmission of Flexibacter columnaris to walleye fingerlings (Stizostedion vitreum vitreum) was investigated. Two groups (1 and 2) of 10 fish each, 7 to 9 cm total length, were exposed to a suspension of F lexibacter columnaris containing 3 X 105 cfu/ mL; fish in group 1 were injured with a scratch along their flank; fish in group 2 were not injured. Two control groups (3 and 4) of 5 fish each were exposed to a sterile broth; group 3 was injured with a scratch and group 4 was not. In 72 h, morbidity was …

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Middle Woodland Field Camps In The Cedar Valley, Michael J. Perry

Journal of the Iowa Academy of Science: JIAS

Archaeological survey and testing of two proposed road projects within the Cedar River valley resulted in the location of several prehistoric occupational sites. Ceramics recovered at three of the sites, 13LN226, 13LN236, and 13LN243, are identified as late Middle Woodland period specimens, dating to ca. A.D. 200. The three sites border Cedar River tributaries, occupying high terrace formations within the broad bottomlands of the Cedar valley. The type and distribution of artifacts suggest that 13LN236 and 13LN243 functioned as repeatedly utilized, short-term extractive and processing camps. Previous research at sites of similar age focused on small, protected rockshelters and large, …

A Study Of Sphacelotheca Occidentalis, Cause Of Kernel Smut Of Big Bluestem, Karen M. Snetselaar, Lois H. Tiffany

Journal of the Iowa Academy of Science: JIAS

Sphacelotheca occidentalis causes kernel smut disease of Andropogon gerardii, a prairie grass. The smut fungus is systemic, perennial, causes severe stunting, and sporulates in florets. Spores develop in gall-like sari composed of grass and fungal cells. Spores initiate in a meristematic area near the base of the sorus, and progressively more mature spores are found toward the sorus rip. The cylindrical sari have a central columella of host vascular tissue permeated by hyphae, sporogenous hyphae and developing teliospores that surround the columella, and a peridium of host and fungal cells. Sporogenous hyphae ramify in a gelatinous matrix that disappears as …

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Back Cover

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.

Iowa's Climate As Projected By The Global Climate Model Of The Goddard Institute For Space Studies For A Doubling Of Atmospheric Carbon Dioxide, E. S. Takle, S. Zhong

Journal of the Iowa Academy of Science: JIAS

Results of a global climate model that simulates climate under a doubling of atmospheric carbon dioxide (estimated to occur by the latter half of the twenty first century) have been interpolated to Iowa. Summer temperatures under such a doubling are projected to rise by 4 to 7°F (2.2 to 3.9°C) and winter temperatures by 10 to 11° (5.6 to 6.1°C). Estimates of space heating and cooling demands from these data suggest a 30 to 35% decrease in space heat demand and a 200 to 300% increase in space cooling demand. Temperature variability is projected to decrease. Precipitation estimates from global …

Comparison Of Dinitrogen Fixation And Nitrogen Transfer Potentials Of Four Red Clover Cultivars, D. E. Farnham, A. P. Mallarino, W. F. Wedin, I. T. Carlson

Journal of the Iowa Academy of Science: JIAS

The capacity to fix atmospheric N₂ and thus reduce the use of N fertilizer is an important reason for including legumes in forage mixtures. Selection for more efficient N₂ fixation could improve red clover (Trifolium prateme L.) (RC) production and its contribution to soil fertility. An isotope dilution study was conducted in two greenhouse experiments to compare the N₂ fixation and N transfer potentials of three commercial and one experimental RC cultivars. The experimental cultivar APR-8701 was selected for traits related to increased N₂ fixation (rate of acetylene reduction, root size and branch number, and nodule …

Studies Of The Precambrian Geology Of Iowa: Part 1. The Otter Creek Layered Igneous Complex, Kenneth E. Windom, Karl E. Seifert, Raymond R. Anderson

Journal of the Iowa Academy of Science: JIAS

Rocks from a buried igneous body, herein called the Otter Creek layered igneous complex, were recovered by drilling in Archean rocks in northwestern Iowa. This complex consists of layers of ultramafic and mafic cumulate rocks, including bronzitite, harzburgite, dunite, gabbro, and anorthosite. These rocks have been subjected to low-grade metamorphism with a patagenesis including serpentine, chlorite, talc, uralitic amphiboles, magnetite, albite, epidote, sericite, and minor quartz and calcite. During its intrusion, the magma which gave rise to the layered body engulfed a large block of rock consisting of banded iron formation and thin lamprophyre dikes. Both the iron formation and …

Waitperson/Customer Interaction As An Example Of Community, Patricia Louise Macaodha

Dissertations and Theses

This thesis draws from research done in a particular urban setting, and illustrates the foundations of a type of social structure called "respite community". "Respite community" is a specifically urban phenomenon which can be defined as temporal, ad hoc, face to face, an aggregate of people who seek temporary relief from social stresses and support through socialized interaction.

Acquiring The Past For The Future: The South Carolina Heritage Trust Statewide Assessment Of Cultural Sites, Christopher Judge, Steven D. Smith

Research Manuscript Series

The South Carolina Institute of Archaeology and Anthropology received a grant from the South Carolina Wildlife and Marine Resources Department and the South Carolina Department of Archives and History to conduct a statewide assessment of the cultural resources of the state. This report details the results of this one-year study to establish a representative sample of the archaeological and historical resources of the state of South Carolina, to be used by the South Carolina Heritage Trust as a planning tool for the possible acquisition of such sites as Heritage Preserves. A list of the 100 most "Critically Significant" sites and …

A Comprehensive Bibliography Of South Carolina Archaeology, Keith M. Derting, Sharon L. Pekrul, Charles J. Reinhart

Research Manuscript Series

This volume represents the compilation of the first comprehensive bibliography of South Carolina archaeological sources.

An Annotated Checklist Of The Vascular Plant Flora Of Guthrie County, Iowa, Dean M. Roosa, Lawrence J. Eilers, Scott Zager

Journal of the Iowa Academy of Science: JIAS

The known vascular plant flora of Guthrie County, Iowa, based on field, herbarium, and literature studies, consists of 748 taxa (species, varieties, and hybrids), 135 of which are naturalized. Species which appear on the state's list of endangered and threatened species, or are otherwise rare, are discussed.

There is an affinity of the plants of Guthrie County with those of the Ozark plateau, and with specialized habitats providing extensions of ranges for species normally found farther north or east.

The Goody Bag - January 1991, South Carolina Institute Of Archaeology And Anthropology--University Of South Carolina

Sport Diver Newsletters

Contents:

Barge Graveyard in the Waccamaw..... p.1
South Carolina's Underwater Legislation - Update "We Need Your Input and Support"..... p.2
Carolina Watercraft..... p.3
The Book Locker..... p.4
Conference and Fieldschool..... p.4
Glyptodonts in South Carolina Glyptotherium Floridanum..... p.5
Hobby Diver Reports and Queries..... p.6
Conway Underwater Discovery Conference..... p.7
Conservation Corner..... p.8
Sports Diver Program Moves to Charleston..... p.9
First Ever European Paleolithic Tool Found in SC..... p.10

The Empire Strikes Out? A Look At The Nationalities Crisis In The Soviet Union, Catherine E. Breen

Honors Theses

My thesis rests on the notion that, because of the increase of freedoms in the Soviet Union today, many republics are demanding that their autonomy be restored and that this nationality crisis, an unforeseen and unwanted byproduct of recent reforms, has grown into such a disaster that it is now actually impairing the whole reform movement in the Soviet Union as civil unrest and strife are beginning to threaten the stability of this huge empire.

Ethnic identity is not something that can be hidden, changed, forced, or converted, nor will national and cultural roots simply disappear over time. Thus, the …

Leach, Mary Jo (Fa 135), Manuscripts & Folklife Archives

Folklife Archives Finding Aids

Finding aid and full-text scan of paper (Click on “Additional Files” below) for Folklife Archives Project 135. "Vietnam: One Man's Remembrances." Interview with Lee Scruggs of the 77th Special Forces Reconnaissance Platoon stationed in Southern Laos during the Vietnam War. Interview contains anecdotes and personal narratives of his participation in the war.

Vascular Flora Of Arend's Kettle, Freda Haffner Kettlehole State Preserve, Dickinson County, Iowa, Edwin L. Freese, William J. Platt

Journal of the Iowa Academy of Science: JIAS

Arend's Kettle is a 5 ha glacial landform in Dickinson County, Iowa. The flora of this kettle was studied over two years prior to acquisition by the Nature Conservancy in 1973. The known vascular flora of Arend's Kettle as of 1973 consisted of 299 species, representing 177 genera and 59 families. The vegetation ranged from xeric short grass prairie along the rims of the kettle to mesic prairie along the middle and lower slopes. In the bottom of the kettle, there was a marsh/seasonal pond community that varied greatly in the amount of water present, depending on rainfall within the …

Beads: Journal Of The Society Of Bead Researchers - Volume 3 (Complete)

BEADS: Journal of the Society of Bead Researchers

No abstract provided.

Pvn-Op 12, 19, 31, 36, 39, 84, 112, 120, 306-Lithic Analysis Sheets-1991, Neil Ross

Four Valleys Archive

No abstract provided.

Pvn-Cat-096-B-021-002-Cnmdl, Rebecca Reimbold, Quique Posas

Four Valleys Archive

No abstract provided.

Pvn-Cat-096-I-013-002-Cand, Rebecca Reimbold

Four Valleys Archive

No abstract provided.

Pvn-Cat-600-B-001-001-Cnmdl, Stephen Yates

Four Valleys Archive

No abstract provided.

Pvn-Cat-600-C-003-006-Lcth, Stephen Yates

Four Valleys Archive

No abstract provided.

Pvn-Cat-600-C-003-005-Lcth, Stephen Yates

Four Valleys Archive

No abstract provided.

Pvn-Cat-600-C-003-004b-Lcth, Stephen Yates

Four Valleys Archive

No abstract provided.