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Inactivation Of Soybean Peroxidase During Sodium Azide Oxidation: A Comparative Study, Mohamed Yehia Zakaria Aboul Eish

Dissertations and Theses @ UNI

Azide ion is a mechanism-based inactivator of a number of peroxidases. However, there are often variations in the manner in which inactivation occurs. Soybean Peroxidase (SBP) is found in the plant's seed coat. Unlike many other peroxidases, a single enzyme rather than several isozymes are produced thus making more simple the purification and characterization of the enzyme. In this research it was shown that, as with other peroxidases, SBP is inactivated by azide during turnover. During azide oxidation SBP forms a ferrous-NO intermediate. In this respect, SBP is similar to the lignin peroxidases from Phanerochaete chrysosporium which also form ferrous-NO …

Differential Expression Of The Putative Multidrug Resistance (Mdr) P-Glycoprotein In Marine Hepatocytes, Marty C. Braud

Dissertations and Theses @ UNI

Aquatic organisms such as fish, sponges and mussels are exposed to mixtures of chemicals in polluted waters including polycyclic aromatic hydrocarbons, pesticides and heavy metals. The tissues of some of these organisms are found to have a lower concentration of pollutants compared to the surrounding waters and/ or sediments. This suggests that some aquatic organisms may possess a means of detoxifying environmental pollutants. For this study, primary hepatocytes of the marine winter flounder (Pleuronectes americanus) and freshwater rainbow trout (Salmo gairdnen) hepatomas were exposed to environmental pollutants to determine whether a multidrug-resistance (MDR) p-glycoprotein (pgp) extrusion pump is involved in …

Comparison Of Litter Decomposition Rates And Soil Arthropod Abundance In Different Stages Of Prairie Reconstruction, Lisa M. Busch

Dissertations and Theses @ UNI

The abundance of soil microarthropods and of corresponding decomposition rates in native prairie remnants and reconstructed prairies at Walnut Creek National Wildlife Refuge were investigated. Soil microarthropods were collected with litter bags and extracted using modified Berlese-Tullgren funnels for the months of June through October of 1997. Litter decomposition rates were found to be lowest in reconstructed prairies and highest in native prairie remnants. Microarthropod abundance, however, appeared to be inversely correlated with decomposition rates. It appears that native prairie remnants are more productive than reconstructed prairies due to higher decomposition rates. However, the prairies that have been reconstructed for …

The War At Home: Prisoner Of War Camps In Iowa During World War Ii, Julie K. Heintz

Dissertations and Theses @ UNI

Two base camps, along with their branch camps, located in the state of Iowa will provide the focus for this study. The camps in Iowa, located near the towns of Algona and Clarinda, provide an example of two camps that met or exceeded the criteria set by the Geneva Convention of 1929. The creation and administration of the camps raises three questions which constitute the body of this thesis. The first deals with the founding, administration and operation of the camps. Secondly, the study investigates the daily life of the camp inmates. Finally the third question examines how townspeople and …

Breeding Bird Use Of Intensively Managed Rotational Grazing Pastures, Native Prairies And Savannas: A Comparison, Jennifer Marie Hurley O'Hara

Dissertations and Theses @ UNI

Intensively managed rotational grazing is a grazing method in which livestock are moved through a series of paddocks over a three to six week rotation. Vegetation in resting paddocks is allowed to regrow, renew energy reserves, and rebuild plant vigor to provide nutritious forage for livestock. Consequently, vegetation in the paddocks is in different stages of growth which creates a mosaic of vegetation heights across the pasture landscape. I hypothesized that the mosaic of vegetation heights resembles the native tallgrass prairie grazed by bison prior to European settlement. The mosaic may be attractive and beneficial to breeding grassland birds. Several …

Looking At Children Looking At Art : Teacher Response To Aesthetic Journals In Art, Julie A. Alden

Graduate Research Papers

Although recent trends in art education emphasize a discipline based approach to instruction, the elementary art experience often focuses on the process components of art production, overlooking other significant areas of study (Adams, 1992; Garoian, 1988; Hickman, 1994 ). One way in which educators can help make art experiences more meaningful to students is to use response journals for viewing artwork. Educators have established the use of response journals as a worthy practice by providing students with opportunities to develop greater understanding of content material and by providing teachers with valuable insight into students thinking through shared dialogue (Hall, Crawford …

A Preferred Vision For Administering Elementary Schools : A Reflective Essay, Randall W. Strabala

Graduate Research Papers

Why is it that some people give up the relative security and comfort of working with children in the classroom to join the principalship? Why do these same people choose to leave an area where they are the perceived expert in their field for an area where one's decisions are constantly questioned and criticized by those he or she works for and with? These are difficult questions to answer and in a rational sense, there are not a lot of logical responses for why some individuals decide to devote the effort necessary to understand and achieve the position of the …

[Price Laboratory School] Newsletter, V8n4, December 1997-January 1998, University Of Northern Iowa. Malcolm Price Laboratory School

Malcolm Price Laboratory School Newsletter

Inside this issue:
-- Message from the Director
-- NU Alum Receives Lux Service Award
-- Dialogue on Parenting: Multicultural Education Provides a Path Toward Better Learning
-- Take Note!
-- A Wonderful Reunion
-- Middle School...
-- Guidance...
-- Parents, Volunteers, Visitors - Name tags required starting December 1
-- Urgent: Meal Accounts Must Be Kept Up-To-Date
-- Multicultural Non-Sexist Advisory Committee October 20, 1997 Minutes
-- PTP Minutes November 4, 1997
-- PLS Task Force Minutes November 4, 1997
-- PAC Meeting Minutes November 11, 1997
-- Report to Parents: TV Ratings
-- Report to Parents: Good Manners …

University Of Northern Iowa Faculty Senate Meeting Agenda, November 24, 1997, University Of Northern Iowa. Faculty Senate.

Documents - Faculty Senate

Meeting agenda from the Faculty Senate of the University of Northern Iowa.

University Of Northern Iowa Faculty Senate Meeting Minutes, November 24, 1997, University Of Northern Iowa. Faculty Senate.

Documents - Faculty Senate

Meeting minutes from the Faculty Senate of the University of Northern Iowa.

University Of Northern Iowa Faculty Senate Meeting Minutes, October 27, 1997, University Of Northern Iowa. Faculty Senate.

Documents - Faculty Senate

Meeting minutes from the Faculty Senate of the University of Northern Iowa.

University Of Northern Iowa Faculty Senate Meeting Agenda, October 27, 1997, University Of Northern Iowa. Faculty Senate.

Documents - Faculty Senate

Meeting agenda from the Faculty Senate of the University of Northern Iowa.

Earth News, Fall 1997, Department Of Earth Science, University Of Northern Iowa.

Earth News

Inside this issue:

--- News from the Earth Science Staff
--- Mary Lou Welch - Earth Science Secretary, 1975-1995
--- Earth Science Opens Way to the Stars
--- Earth Science Student Assistants
--- Sigma Gamma Epsilon - Gamma Sigma Chapter
--- Earth Science Majors
--- Comet Hale-Bopp
--- Student Research Presentations
--- 1997 Earth Science Graduates
--- Interesting Facts about the Earth Science Majors
--- Gifts to the Department of Earth Science
--- 1997 Scholarship and Award Recipients
--- Earth Science Seminar Series
--- Special Alumni Newsletter Profile - Craig B. Davis
--- Earth Science Alumni Notes
--- Our Faculty …

The Annual Meeting Of The Iowa Academy Of Science April 25-26, 1997 [Program, 109th Meeting], Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Program Summary --- 4
General Session Speakers --- 7
Awards --- 10
Symposia Programs --- 11
Poster Session --- 13
Map --- Center
Section Programs/Special Sessions --- 16
Agricultural Sciences --- 16
Anthropology --- 17
Botany --- 18
Cellular, Molecular, & Microbiology --- 19
Chemical Education --- 20
Chemistry : Inorganic , Physical , & Analytical --- 21
Chemistry : Organic & Biological --- 22
Conservation --- 23
Engineering --- 26
Geology --- 26
Physics --- 28
Physiology --- 29
Psychology/Linguistics --- 32
Science Teaching --- 32
Zoology --- 32
Local Arrangements Committee --- 34
Annual Meeting Committee --- …

Program Abstracts, 109th Session, Iowa Academy Of Science, April 25-26, 1997, Iowa Academy Of Science

Iowa Academy of Science Documents

Presentation abstracts from the annual meeting of the Iowa Academy of Science

Ballast Quarterly Review, V12n3, Spring 1997, Roy R. Behrens

Ballast Quarterly Review

A journal devoted to wit, the contents of which are intended to be insightful, amusing, or thought provoking.

Rebuilding Little Lives : Using Play Therapy With Traumatized Children, Denise E. Maas

Graduate Research Papers

In this paper, the author will attempt to assist therapists with their work with traumatized children using play therapy. The discussion includes signs and symptoms that a traumatized child may exhibit. In addition, the paper will contain selected therapeutic powers of play and how they can aid in the treatment of traumatized children. The case examples provided throughout this paper are actual experiences taken from the author's clinical practice in a hospice setting.

Ballast Quarterly Review, V13n2, Winter 1997-98, Roy R. Behrens

Ballast Quarterly Review

A journal devoted to wit, the contents of which are intended to be insightful, amusing, or thought provoking.

Forest Research In Iowa's State Parks - The Values Of Natural Diversity, Donald R. Farrar

Journal of the Iowa Academy of Science: JIAS

Approximately 3% of Iowa's forests are contained in state parks and preserves. In addition to aesthetics and recreation, these protected forests provide a vital service in the unique opportunities they provide for forest research. As intact ecosystems where natural ecological processes dominate, they provide standards by which we measure the effects of livestock pasturing, methods of timber harvest, and other manipulations of managed forests. A number of current studies and public programs emphasize the importance of natural diversity in forests. They rely on state parks and preserves to provide a measure of potential diversity for a given region of the …

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

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Iowa Academy Of Science 109th Annual Meeting [1997]: Advance Program, Iowa Academy Of Science

Iowa Academy of Science Documents

Contains information about the schedule and presentations for the 1997 annual meeting of the Iowa Academy of Science.

Iowa Academy Of Science Membership Directory, 1997-98, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Editorial Board, Journal ... 5
Committees ... 6
Sections ... 18
ISTS Regional Directors ... 22
Awards of Merit ... 24
Excellence in Science Teaching Awards ... 25
Past Presidents ... 26
Membership Roster ... 27

Understanding And Treating Selective Mutism In Children : A Guide For Counselors, Chelsea R. Carter

Graduate Research Papers

Selective mutism is a clinical disorder in which a child remains silent in chosen situations despite the ability for speech. Though there are cases of selective mutism in adults, the major population in which this disorder is diagnosed is in children. This paper will focus on these children who meet the criteria for a diagnosis of selective mutism.

There are three major theoretical schools of thought regarding selective mutism. The first deals with hostility and control; the second, anxiety and social phobia; and the third, family communication in regard to the onset and maintenance of this disorder. This paper explores …

Childhood Physical Or Sexual Abuse As A Possible Indicator Of Subsequent Adult Anxiety Disorders, Lynn Merry Cornwell

Graduate Research Papers

In recent years, there has been a growing acceptance that childhood physical and sexual abuse lead to higher rates of psychiatric morbidity in adulthood. Childhood abuse experiences have been reported to be highly prevalent among patients with anxiety disorders. Similarly, childhood incest victims have been found to suffer from a significantly higher rate of anxiety disorders in adulthood especially agoraphobia, than a non-victimized, matched comparison group. Epidemiology studies also support a relationship between childhood abuse and the subsequent development of anxiety disorders. Two separate community surveys found that childhood sexual victimization predicted the later onset of agoraphobia, obsessive-compulsive disorder, and …

Northern Iowa Today, V80n2, Winter 1997, University Of Northern Iowa Alumni Association

UNI Today

Inside This Issue:
--The real world starts today
--Cease and de-stress
--Habits of the mind
--Faculty profile: Melba Widmer
--Alumni profile: Sandy Stevens
--College & University
--Class Notes
--Perspective: Experiential learning motivates students to succeed

Gold, Andrew T. Miller

Short Story

No abstract provided.

The Unplundered Country, David Rogers

Short Story

No abstract provided.

Richard W. Pohl: Distinguished Botanist, Marjorie Conley Pohl

Journal of the Iowa Academy of Science: JIAS

In her biographical portrait of Dr. Richard W. Pohl, Mrs. Pohl provides an engaging personal perspective of her late husband, his development as a botanist, his career, and his family life. We gain a sense of Dr. Pohl as a dedicated scientist as well as a humanist. Although Dr. Pohl possessed an abiding curiosity regarding all things natural, he is best known and remembered for his focus on grasses. As Mrs. Pohl documents, this interest in grasses began in the late 1930's and continued throughout his life-ultimately he was regarded as an authority on grass taxonomy both nationally and internationally. …

Carnivorous Spadefoot (Spea Bombifrons Cope) Tadpoles And Fairy Shrimp In Western Iowa, Eugenia S. Farrar, Jane D. Hey

Journal of the Iowa Academy of Science: JIAS

Amphibian larval polymorphisms, rarely found in the Midwest, are more common in arid western regions. We have discovered that Plains spadefoot toad, Spea bombifrons Cope, tadpoles occur as carnivorous and omnivorous morphological forms in flooded soybean and corn fields on the Missouri River flood plain of western Iowa. Carnivores have longer snouts, larger beaks with an upper cusp and lower notch, shorter intestines with fewer loops than the omnivores, and they feed on fairy shrimp. A similar polymorphism in Spea multiplicata Cope enhances survival in the desert because the carnivore develops faster after consuming fairy shrimp and is able to …