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Radial Dose Model Of Ssb, Dsb, Deletions And Comparisons To Montecarlo Track Structure Simulations, Francis A. Cucinotta, H. Nikjoo, J. W. Wilson, Robert Katz, D. T. Goodhead

Robert Katz Publications

The initial lesions formed in DNA by ionizing radiation include base damage, single strand breaks (SSB), double strand breaks (DSB), DNA cross links, and deletions. Deletions occur through energy deposition and perhaps more importantly through recombination repair of DSB's. Several mechanisms for the formation of DSB's and deletions related to energy deposition can be considered. Track simulation codes have indicated the importance of clusters of ionizations in small volumes similar to the size of a nucleosome. These clusters have been related to several types of damage to DNA, including DSB and deletions resulting from multiple DSB's formed by single electron …

The P System: A Scheme For Organizing Pavlovian Procedures, Jose E. Burgos, Rick A. Bevins

Department of Psychology: Faculty Publications

The present paper introduces the P system as a scheme for organizing Pavlovian procedures in an orderly and comprehensive manner. The system is defined by three temporal variables and three restrictions on their possible values. It can be used to define all standard temporal variables—namely, stimulus duration, interstimulus interval, trace interval, and intertrial interval—as well as variables C and T of scalar expectancy theory. The system also permits the definition of new independent variables through combinations of the basic temporal parameters. We exemplify this possibility by defining two ratios of temporal intervals. These ratios lead to a space where traditional …

Paradigm Shifts And Tapeworm Systematics, Eric P. Hoberg, Scott Lyell Gardner, Ronald A. Campbell

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The phylogeny of tapeworms provided the focus for the 2nd International Workshop for Tapeworm Systematics, which led to the development of novel hypotheses from the ordinal to the species level for taxa of the Eucestoda. Conceptual roots for this meeting ema­nated from discussions initiated during the Ist Workshop chaired by Claude Vaucher and Jean Mariaux at the Museum of Natural History, Geneva in 1993.

Coccidia From Bats (Chiroptera) Of The World: A New Eimeria Species In Pipistrellus Javanicus From Japan, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Fecal samples from 56 Japanese bats representing 6 species in 2 families were examined for coccidian oocysts. Two of the 56 (< 4%) were infected with coccidia; however, only 1 animal was infected with sufficient numbers of sporulated oocysts to allow the description of a new species of Eimeria. Sporulated oocysts (n = 150) of this new species are subspheroidal, 20.3 x 18.1 (16-25 x 14-21) μm, with ellipsoidal sporocysts 10.6 x 6.6 (8-12 x 5-8) μm; this species occurred in 1 of 4 (25%) pipistrelles, Pipistrellus javanicus (Gray, 1838) (Vespertilionidae). Oocysts of another coccidium, also an Eimeria sp., were found in 1 of 3 (33%) horseshoe bats, Rhinolophus ferrumequinum (Schreber, 1774) (Rhinolophidae), but only 2 sporulated oocysts were seen, which is not enough …

Parasitological Data As Monitors Of Environmental Health, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

When an appropriate fish host is selected, analysis of its parasites offers a useful, reliable, economical, telescoped indication or monitor of environmental health. The value of that information increases when corroborated by another non-parasitological technique. The analysis of parasites is not necessarily simple because not all hosts serve as good models and because the number of species, presence of specific species, intensity of infections, life histories of species, location of species in hosts, and host response for each parasitic species have to be addressed individually to assure usefulness of the tool. Also, different anthropogenic contaminants act in a distinct manner …

Notes: Forage Yield, Quality, And Fertility Of Sorghum X Sudan Grass Hybrids In A1 And A3 Cytoplasm, Jeffrey F. Pedersen, J. J. Toy

Department of Agronomy and Horticulture: Faculty Publications

Currently, no information is available comparing the agronomic performance of A1 and A3 cytoplasms in sorghum x sudangrass [Sorghumbi color (L.) Moench] hybrids. The objectives of this study were to compare the effects of A1 and A3 cytoplasm on the maturity, fertility, height, forage yield, and forage quality of sorghum × sudangrass hybrids. In 1989, pollen from a bulk of eight sudangrass populations was used to pollinate four sorghum lines that had been male-sterilized in both A1 and A3 cytoplasm. Hybrids were grown at the Univ. of Nebraska Field Laboratory Ithaca, NE, in 1990 and 1991, in a split-plot …

1997-1998 Lindenwood University Graduate Course Catalog, Lindenwood University

Course Catalogs

Lindenwood University Graduate Course Catalog

1997-1998 Lindenwood University Lcie Course Catalog, Lindenwood University

Course Catalogs

Lindenwood University LCIE Course Catalog

1997-1998 Lindenwood University Undergraduate Course Catalog, Lindenwood University

Course Catalogs

Lindenwood University Undergraduate Course Catalog

Parasitological Data As Monitors Of Environmental Health, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

When an appropriate fish host is selected, analysis of its parasites offers a useful, reliable, economical, telescoped indication or monitor of environmental health. The value of that information increases when corroborated by another non-parasitological technique. The analysis of parasites is not necessarily simple because not all hosts serve as good models and because the number of species, presence of specific species, intensity of infections, life histories of species, location of species in hosts, and host response for each parasitic species have to be addressed individually to assure usefulness of the tool. Also, different anthropogenic contaminants act in a distinct manner …

Lithium Bonding Interaction In H2Cy⋯Lif (Y=O,S) Complexes: A Theoretical Probe, Salai Cheettu Ammal, P. Venuvanalingam, S. Pal

Faculty Publications

Ab initio calculations at 6-31++G(d,p) level have been done on H2CY⋯LiF (Y=O,S) complexes choosing ten possible orientations in each complex. The effect of correlation on complex binding energies has been studied via single point MP2 (full) calculations done on 6-31++G(d,p) geometry. Binding energies have been corrected for basis set superposition error. Frequency calculations confirm that H2CO⋯LiF and H2CS⋯LiF complexes have three and two stable forms, respectively. The most stable form in each complex has been found to have a strong lithium bonding interaction and a secondary hydrogen bondinginteraction. NBO analysis has revealed that in this form oxygen donates nσ lone …

Expression Of Follistatin And Inhibin/Activin Subunit Genes In Porcine Follicles, M.D. Li, L.V. Depaolo, J.J. Ford

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Expression of the follistatin (FS) and inhibin/activin (I/A) α, β_A, and β_B subunit genes in porcine ovarian follicles was evaluated by reverse transcriptase polymerase chain reaction and/or RNase protection procedures to establish changes during the final stages of follicular development. For the I/A α and β_A subunits, expression increased (p < 0.05) as follicles progressed to the mid-stage of the follicular phase. The β_B, subunit was expressed in lower concentrations, and all three I/A subunits showed a marked reduction (p < 0.01) in expression by the late stage of follicular development. In contrast to this pattern, FS gene expression decreased (p < 0.05) as follicles developed from the early (low estradiol) to the mid stage (high estradiol) and continued to decline in advanced follicles (after estrus). The predominant mRNA encoded for FS-315, and the ratio of mRNA for FS-315 to mRNA for FS-288 did not differ significantly during the three stages. Within an animal, concentration of FS mRNAs was related more to stage of the follicular phase than to follicular size. Follicular fluid concentration of FS changed in a manner similar to that observed for expression of its gene. We conclude that expression of the FS gene and translation of its mRNA decrease as follicles approach ovulatory status.

Yield Of Wheat Across A Subambient Carbon Dioxide Gradient, Herman S. Mayeux, Hyrum B. Johnson, H. Wayne Polley, Stephen R. Malone

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Yields and yield components of two cultivars of day-neutral spring wheat (Triticum aestivum L.) were assessed along a gradient of daytime carbon dioxide (CO₂) concentrations from about 200 to near 350 µmol CO₂ (mol air)^–1 in a 38 m-long controlled environment chamber. The range in CO₂ concentration studied approximates that of Earth’s atmosphere since the last ice age. This 75% rise in CO₂ concentration increased grain yields more than 200% under well-watered conditions and by 80–150% when wheat was grown without additions of water during the last half of the 100-day growing season. …

Canopy Architecture And Morphology Of Switchgrass Populations Differing In Forage Yield, Daren D. Redfearn, Kenneth J. Moore, Kenneth P. Vogel, Steven S. Waller, Robert B. Mitchell

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Phenotypic selection has been used to improve forage yield and in vitro dry matter disappearance (IVDMD), but the effects on canopy architecture and morphology are not understood. Our objectives were to determine if canopy architecture and morphology can explain genotype x environment (G x E) yield differences in switchgrass (Panicum virgatum L.) and to evaluate canopy architecture and morphology as selection criteria for increasing yield. This study was conducted in 1993 near Mead, NE, and near Ames, IA. The experimental design was a randomized complete block experiment with a split-plot arrangement of four replicates at each location. Whole plots …

Genetic Variation In North American Leafy Spurge (Euphorbia Esula) Determined By Dna Markers, Martha L. Rowe, Donald J. Lee, Scott Nissen, Brunella M. Bowditch, Robert A. Masters

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Levels of inter- and intrapopulation genetic variation were determined in five North American populations of leafy spurge using chloroplast DNA (cpDNA) RFLPs and RAPD markers. Thirteen plastome types were identified among 123 individuals collected from five geographically separated populations. Number of pastimes within a population ranged from one to seven, with four of the populations having a predominate type plus one or more rarer types. Some plastome types were shared by populations, but plastome distribution among populations was nonrandom. RAPD markers indicated greatest relatedness among individuals within a population. Relatedness among populations as established through RAPDs was greater for geographically …

Isolation And Characterization Of The 22 Kd Subunit Of Gluconate Dehydrogenase Derived From Pseudomonas Aeruginosa Pao1., John David Gordon

Graduate Theses, Dissertations, and Problem Reports (ETD)

Approximately 95-99% of soil phosphorous is unavailable to plants, with {dollar}\\sim{dollar}90% of phosphate fertilizers also being rendered unavailable upon application. 2-Ketogluconate (2KG) has been shown to solubilize insoluble phosphates in vitro. If plants themselves could solubilize the insoluble phosphate in the soil, this would greatly reduce the need for phosphate fertilizers. Two greenhouse experiments were conducted to examine in vitro and in situ solubilization of insoluble phosphates (calcium phosphate, RP, and iron phosphate, IP) with increasing concentrations of 2KG, as seen through plant (Lycopersicon esculentum) growth and Pi uptake. In the first experiment (in situ solubilization), water alone showed a …

Description Of The Tadpole Of Atelopus Tricolor, E. O. Lavilla, Rafael O. De Sá, Ignacio De La Riva

Biology Faculty Publications

Tadpoles of Atelopus belong to the gastromyzophorous guild of exotrophic larvae (Altig and Johnston, 1989), and are characterized by the presence of a conspicuous abdominal sucker and an expanded oral disc. The larvae of several Atelopus species have been described previously: A. varius (Starrett, 1967); A. certus, A. ignescens, and A. spumarius (Duellman and Lynch, 1969); A. cruciger (Mebs, 1980); A. flavescens (Lescure, 1981); A. peruensis (Gray and Cannatella, 1985); and A. subornatus (Lynch, 1986). These represent about 15% of the known species in the genus (Frost, 1985; Duellman, 1993). Although Atelopus tricolor was originally described at the beginning of …

Some Aspects Of The Ecology Of An Urban Corvid : The Australian Raven (Corvus Coronoides) In Metropolitan Perth, P. J. Stewart

Theses : Honours

The relatively recent and noticeable increase in abundance and distribution of the Australian Raven (Corvus coronoides) in the Perth metropolitan area, has led to an increase in the amount of problems associated with the bird resulting in a need to quantify its ecology in an urban context. This research documented the abundance and distribution of the raven, possible reasons for its increase, the basic nesting characteristics, peoples attitudes, basic morphology, food items and problems associated with the bird in Perth and Kings Park. These aims were achieved by using observational field data, culled birds, a newspaper questionnaire and Geographic Information …

The Role Of Fas And Fas Ligand In Apoptosis During Regression Of The Corpus Luteum, Sharon Roughton

Theses : Honours

Apoptosis, a form of physiological cell death, has been found to occur during regression of the corpus luteum (Juengel etal, 1993; Dharmarajan etal, 1994). The pathways involved in this process, however, have yet to be specified. One possible mediator of corpus luteum regression is the Fas (or AP0-1 or CD95) receptor, a transmembrane protein which induces apoptosis in the cell when ligated. In order to further confirm this hypolhesis, the present study establishes and quantitates the presence and regulation of Fas receptor and Fas ligand (Fasl) in the rat corpus luteum during pregnancy and post-partum. The animals used were sexually …

Genealogical Studies Of Selected Australian Barramundi (Lates Calcarifer) Using Mtdna : Implications For Stock Transfer To The Kimberley Region Of Western Australia, Robert G. Doupe

Theses : Honours

This study resulted from concerns for the present and proposed movement of barramundi (Lates catcarifer) across presumed population genetic boundaries into the Kimberley region of Western Australia for net-pen aquaculture and a recreational fishery development in dams no longer available to seasonal barramundi dispersal. Direct DNA sequencing of the non-recombining, maternally inherited mitochondrial genome of barramundi thought to represent wild populations from a broad section of a still wider Australian range were used for phylogenetic reconstructions that support hypotheses for historic gene flow between Kimberley and other populations during Recent sea level fluctuations. Nil or low levels of genetic diversity …

Pink And Blue See Red Differently: Influences Of Gender, Gender Role And Gender Of The Target On Anger Experience And Expression, Darryl George Milovchevich

Theses : Honours

Anger is a commonly experienced emotion popularly thought to differ for men and women. However, because of definitional confusion and methodological limitations, there has been little useful empirical exploration of these differences. Current research findings on anger have, further, been limited by being based on non-random convenience samples of students and clinical populations. Research has produced inconclusive evidence for the effect of gender differences on measures of anger. Gender role identification has been identified as possible influencing factor. In the current study, the author drew a random sample from the general population of a small Australian city. Participants (n = …

Video Self-Monitoring As An Alternative To Traditional Methods Of Pronunciation Instruction, P. C. Noble

Dissertations and Theses

Japanese students of English have difficulty pronouncing /f/, Ir/, /1/, /v/ and "th", sounds that are either not present in their language, or as in the case of /r/, articulated in Japanese more like an English /di. Their difficulty with these sounds seems to affect their comprehensibility in English to native-speakers of English.

The purpose of this partial replication of a 1994 study by MacDonald, Yule and Powers was to test three different methods of pronunciation instruction ( and a control) to determine which promoted the greatest improvement in the pronunciation of the five target sounds among Japanese speakers. The …

Purification And Characterization Of Catalase From Enterococcus Faecalis, Zhenghong Zhu

Dissertations and Theses

Catalase is an important biological enzyme that most organisms employ during aerobic growth to catalyze the decomposition of hydrogen peroxide, a toxic reduction product of oxygen, into water and molecular oxygen. Traditionally, the bacterium Enterococcus faecal is is considered to have no cytochrome system and to be catalase negative. However, certain strains of E. subsequent studies have shown that faecalis are capable of producing catalase when grown aerobically in a medium containing hematin.

The goals of this study were to purify and characterize catalase from a clinical strain of E. faecalis. The organisms were grown under aerobic conditions in a …

Drowning In Loneliness And Writing The Blues: Creating Lesbian Space In The Novels Of Radclyffe Hall And Leslie Feinberg, Laura Ellen Goetz

Dissertations and Theses @ UNI

Feminist theory has long been concerned with identity politics, and feminists have grappled with the ideologies and identities of race, sex, gender, and sexuality, to name only a few. Psychoanalytic theorist Teresa Brennan and postmodern theorist Judith Butler combine feminism with their respective fields in their quests to figure out how subjectivities are created, and why some people are objectified or created as objects, while others are created as subjects. Literature is an excellent vehicle for studying subject/object creation and identity politics, because it often mirrors “real” life, because literature can have such an impact on the lives of those …

Cross-Talk Between Adherens Junctions And Desmosomes Depends On Plakoglobin, Jani E. Lewis, James K. Wahl Iii, Kristin M. Sass, Pamels J. Jensen, Pamela J. Johnson, Margaret J. Wheelock

Biology

Squamous epithelial cells have both adherens junctions and desmosomes. The ability of these cells to organize the desmosomal proteins into a functional structure depends upon their ability first to organize an adherens junction. Since the adherens junction and the desmosome are separate structures with different molecular make up, it is not immediately obvious why formation of an adherens junction is a prerequisite for the formation of a desmosome. The adherens junction is composed of a transmembrane classical cadherin (E-cadherin and/or P-cadherin in squamous epithelial cells) linked to either β-catenin or plakoglobin, which is linked to α-catenin, which is linked to …

Black And White (Book Review), Anthony V. Alfieri

Articles

No abstract provided.

Calcium Metabolismn In Volvox Carteri, Bridget Anne Neville

Honors Theses

Calcium metabolism is involved in many ways in the cellular activities of the colonial green alga, Volvox carteri. Various drugs that are known in other systems to cause specific changes in calcium metabolism, gave rise to various visible metabolic effects in this study. These effects provide evidence for calcium's role in Volvox growth and development and in its cytoskeleton. Another way that calcium exerts its effect on Volvox is by acting as a second messenger in a G-protein/inositol phosphate signal transduction pathway.

This study also supports the fact that cytoskeletal components are important for development in Volvox. Both microtubules and …

Computational Studies Of Hydroboration: Remote Functional Groups And Ring Size Effects, Sarah Liberty Olbrich

Honors Theses

This study is a preliminary computational study of the energies of complex molecules. We are looking at the roles of remote heteroatoms in the hydroboration of propellane systems and ring size effects in the solvolysis of cyclic alkyl halides was examined using computational methods. Geometry and transition state optimizations were done using semi empirical (MNDO. AMI) and ab initio (STO-3G, 3-2IG, and 6-31G*) methods. Attempts to correlate computational results with previously reported data will be presented.

Suspended Particulate Matter And Sediment Of Penobscot Estuary, Craig M. Pochini

Honors Theses

An automated scanning electron microscope with an energy dispersive spectrometer was used to gather morphological and chemical information on individual particles from the suspended particulate matter of the Penobscot Estuary and the sediment of Goose Cove/Pond. The goals of the Penobscot Estuary study were to investigate the transport of particles into and through an estuary, the speciation of elements, the abundance of heavy metals, and the background levels of heavy metals. The majority of particles were aluminosilicates originating from a riverine source. Heavy metals were not abundant in the Penobscot Estuary. The objectives of the Goose Cove/Pond study were to …

Papers Of The Second Palo Alto Conference, Anthony K. Knopp, Harriett Denise Joseph, Douglas A. Murphy, Palo Alto Battlefield National Historic Site (Agency : U.S.)

History Faculty Publications

Introduction -- Conference Program -- Reconsideraciones sobre la guerra entre México y los Estados Unidos / Josefina Zoraida Vázquez -- La beligerencia mexicana durante la guerra con los Estados Unidos/ Jesús Velasco -Márquez -- James K. Polk and Presidential War Powers: An Unexplored Field of the Constitution / Kathleen O'Kray Peltier -- A Thread of Brittle Texture " : Ann Chase and Manifest Destiny / Shannon L. Baker -- We Shall Beat Them Wherever We Meet Them " : Civil War Officer Perceptions of Mexico; 1846-48 / Christopher S. Stowe -- Encountering the Other: American Soldiers in the Mexican - …