Digital Commons Network^™

An Examination Of Factors Influencing The Spatial Distribution Of Foraging Bats In Pine Stands In The Southeastern United States., Michael A. Menzel

Graduate Theses, Dissertations, and Problem Reports (ETD)

The general objective of this dissertation was to determine the effect of changes in forest structure on bat activity patterns in southern pine stands. Individual studies included an investigation of the homerange, habitat use, and diet of a species of special concern common to the Southern Pine Region (SPR), Rafinesque's big-eared bat, a investigation of the relative activity of bats below, within, and above forest canopies in 5 vegetational communities, and a review of the distribution and habitat associations of the bats of the SPR. In my first study, I examined homerange size, habitat use, and diet of four reproductively …

Fictions Of Nature: Ecology, Science, And Culture In Twentieth-Century British Literature., Neal Bukeavich

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation examines twentieth-century British fiction concerned with humankind's interactions with the nonhuman world. I analyze a range of literary works, including H. G. Wells's The Food of the Gods (1903), D. H. Lawrence's The Rainbow (1915), Women in Love (1920), and Lady Chatterley's Lover (1928), John Brunner's Stand on Zanzibar (1968), Graham Swift's Waterland (1983), and J. G. Ballard's Rushing to Paradise (1994). This body of literature remains largely unexamined for its treatments of ecological issues and belongs to a national history deeply implicated in local and global environmental change. Moreover, my consideration of this literary tradition marks a …

The Effects Of Resistance Training And Oral Creatine Supplementation On Muscle Fiber Morphology, Strength And Activities Of Daily Living In Patients With Charcot -Marie -Tooth Disease., Robert David Chetlin

Graduate Theses, Dissertations, and Problem Reports (ETD)

Resistance exercise and creatine supplementation independently improve strength and function in patients with neuromuscular diseases, but the effectiveness of the two combined in patients with Charcot-Marie-Tooth (CMT) disease is unknown. Additionally, no study has examined gender differences in strength and activities of daily living (ADLs) in CMT patients before or after resistance training, nor has ADL performance been used for exercise prescription. Purposes. (1) To examine the effects of resistance training with and without creatine supplementation on muscle, strength and function in patients with CMT; (2) To compare effects of 12 weeks training on strength and ADLs in CMT men …

Say-Do Correspondence: Effects Of Reinforcer Magnitude, Response Requirement, And Prior Experience On Choices., Stephanie P. Da Silva

Graduate Theses, Dissertations, and Problem Reports (ETD)

The effects of reinforcer magnitude, response requirement, and prior experience on choices in say-do correspondence were assessed in three experiments. In each of the experiments, correspondence was trained on red, green, and white key colors using Lattal and Doepke's (2001) homologue of correspondence. In Experiment 1, the duration of food presentations following correspondence on each key color was manipulated across conditions. As the duration of food presentation increased (e.g., from 3 s to 6 s), the number of say responses on that key color increased and, as the duration of food presentation decreased (e.g., from 3 s to 1 s), …

Reducing Pausing During Rich -To -Lean Schedule Transitions: Effects Of Reinforcer Context And Cue Accuracy., Chad Michael Galuska

Graduate Theses, Dissertations, and Problem Reports (ETD)

Transitions from rich-to-lean conditions of reinforcement often produce extended pausing in operant responding and may underlie maladaptive behavior in natural settings. Reducing their disruptive effects is of basic and applied interest. Experiment 1 assessed the effects of the overall reinforcement rate on pausing. Pigeons were exposed to a multiple fixed-ratio (FR) 50 FR 100 schedule. The number of rich (FR 50) and lean (FR 100) components varied across conditions. Pausing during the rich-to-lean transition was inversely related to the overall rate of reinforcement for two of three pigeons. As the number of rich components comprising the multiple schedule increased, pausing …

The Effect Of Emphysema On Adaptation Of Peripheral Skeletal Muscle To Different Loading Conditions In The Syrian Golden Hamster., Anne K. Swisher

Graduate Theses, Dissertations, and Problem Reports (ETD)

Purpose. Severe emphysema affects peripheral skeletal muscle with only partial reversal with exercise training. The effects of mild emphysema on adaptation of peripheral skeletal muscle to different loading conditions are unknown. Methods. Male Syrian golden hamsters were instilled with saline (S, n = 6) or porcine elastase (E, n = 12) to induce mild emphysema prior to removal of the right Achilles tendon to induce overload (OV) of plantaris muscle and unloading (UL) of gastrocnemius. The left limb served as control (C). Six animals were sacrificed at 1, 3, and 5 months. Fiber type, citrate synthase activity (CS), and capillary …

Prepartum Milking Of Holstein Heifers: Prepartum Mastitis And Factors Affecting Heifers Milked Prepartum., Nancy Jean Kerr

Graduate Theses, Dissertations, and Problem Reports (ETD)

A field study was conducted on two commercial dairy production units to determine the effects of milking Holstein heifers prepartum on prepartum mastitis, reproduction, milk production, and overall health. Holstein heifers were assigned at least 30 days prior to the expected date of parturition to one of three treatment groups: Non-Prepartum Milked Control, Postpartum Milked (C; Farm 1, n = 31; Farm 2, n = 15), Prepartum Milked (P; Farm 1, n = 68; Farm 2, n = 16); and Prepartum Milked with Mastitis (M; Farm 1, n = 27; Farm 2, n = 4). Prepartum milking consisted of twice …

Cumulative Review: Effects Of Random Alternation Of Review Items On Mathematics Problem Solving., Christine Kim

Graduate Theses, Dissertations, and Problem Reports (ETD)

The present study evaluated the differences between three methods of reviewing basic algebra skills. Five component rules were trained: the use of four laws of exponents and a combination rule that included simplifying mathematical expressions (i.e., “order of operations”) and perfect squares. All methods used the same procedures to teach the rules and included review sessions interspersed among the training of the individual rules. The differences among methods involved the kinds of practice provided during the review sessions. The simple review group (n = 12) received extra questions on each rule learned. The nonrandom cumulative review group (n = 12) …

Framing The View: The *Western Landscape And Nineteenth-Century Narratives Of Expansion., Thomas P. Kinnahan

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study traces the flowering of Western scientific exploration during the fifteen years following the Civil War. During these years, the empirical modes of perception and representation associated with Western exploration gained growing cultural authority and increasingly came to frame discussions of Western policy. At the same time, the systematic exploration of the West revealed the region in new and sometimes startling ways, in some cases prompting far-reaching revisions in the nation's self-perception. The stakes of these revisions became especially acute in the 1870's as the nation's frontier line flowed toward the alien landscapes of the arid West, prompting both …

The Role Of Retrochiasmatic Neurons In Seasonal Breeding In The Ewe., Steven L. Hardy

Graduate Theses, Dissertations, and Problem Reports (ETD)

A seasonal change in GnRH secretion is well documented in sheep. An alteration in the estradiol (E2) negative feedback mechanism is thought to promote ovarian quiescence via GnRH inhibition during spring and summer months in response to changes in day length. It is evident that the hypothalamus becomes hypersensitive to E2 during this time, but the mechanism driving the shift is not completely understood. However, it is clear that A15 dopaminergic (DA) neurons in the retrochiasmatic area (RCh) play a key role in these seasonal changes. These neurons mediated E2 negative feedback in anestrus, but do not respond to E2 …

The Regulation Of Arachidonic Acid Metabolism In Human Osteoblast-Like Cells., Frank Joseph Secreto

Graduate Theses, Dissertations, and Problem Reports (ETD)

Reports that estrogen (E2) treatment modulates arachidonic acid (AA) metabolism by bone and bone cells are found in the literature. However, conflicting indications of the relationship that exists between E2 and AA metabolism emerge from the analysis of those reports. The present studies were undertaken to determine if E2 effected the production of prostaglandins (PG) in human osteoblast-like cells (hOB), and if this effect is due to the regulation of key enzymes involved in PG production, namely cytosolic phospholipase A2 (cPLA2) and the cyclooxygenases (COX-1, COX-2). We determined that hOB cells pretreated with E2 and co-stimulated with tumor growth factor-β …

Project Uplift: A Program To Ensure The Promotion Of Students Who Had Previously Failed, Auty G. Horn

Abraham S. Fischler College of Education ETD Archive

This report describes a program that assisted students in Grades 6-8 who had previously failed 2 or more grades in meeting promotion requirements. The setting was Green Acres Middle School, an urban school with a 99% African American student population of 535 and a free and reduced-price lunch rate of 80%. In 2000-2001, 100% of students for whom data were available and who had failed 2 or more times performed below the 5th stanine on the Stanford Achievement Test 9 (SAT-9)for the total battery.

Project Uplift was a program that was designed to meet the needs of these students. It …

A Preliminary Study Of Sustainable Eco-Industrial Partnerships In The State Of Iowa, Kathleen L. Hennings

Dissertations and Theses @ UNI

The proliferation of industry around the globe, coupled with concerns about the dwindling supply of raw materials, has fostered the emergence of a new manufacturing ideology. In contrast to the linear manufacturing model, raw material in and finished product out, precision manufacturing takes waste material in and provides a new product out. Companies in this study who participated in precision manufacturing were identified as partners when one company sold or traded a waste product to a separate company who used the waste in their primary production. This study was initiated to determine the factors present in successful waste exchange partnerships …

An Analysis Of Physical Activity And Two Forms Of Self Defense Training And Their Impact On Women’S Sense Of Self-Efficacy, Elizabeth Susan Guernsey

Dissertations and Theses @ UNI

Since the mid-l 970s, incidences of rape in the United States have steadily increased. American females aged 16-24 are at the greatest risk to experience rape. This indicates that college-aged women have a high probability of experiencing a sexual assault during their college years. Women are at particularly high risk of being raped by an acquaintance or a date. This may be due to traditional social gender roles in American society. Rape Aggression Defense Systems is the largest self defense program for women that has become particularly popular on college campuses. Ozer and Bandura (1990) sought to study possible increases …

An Advanced Inquiry Of Occupational Therapy Treatment In The Neonatal Intensive Care Unit Focusing On The Sensory Systems Of The Infant, Summer J. Van Rooyen

Occupational Therapy Capstones

No abstract provided.

Recent Jewish Immigrants' Communication In Postville, Iowa: A Case Study, Anna I. Levina

Dissertations and Theses @ UNI

For this paper the author researched Iowa's immigration history and modern day Postville, a small town that represents a tossed salad of cultural, religious, and linguistic diversities. The author analyzed the current effect of immigration as well as the process of integration and assimilation into the small town through the eyes of its immigrants. The major emphasis is placed on Postville located in northeast Iowa. For 150 years Postville was an all-white, all-Christian farming community of 1,000 souls, most of European ancestry. Today the population of Postville has doubled and of the 2,000 people who reside in Postville almost one …

Teacher Perceptions Of Iowa Workshop Model Aspects Fostering Use Of Project Wet, Marcene Seavey

Dissertations and Theses @ UNI

State partners of national environmental education (EE) programs contribute to professional development in EE through their program delivery. This study describes teacher perceptions of individual elements of EE workshops provided by one such program, Iowa Project WET. The study found that educators associate three types of workshop activities with successful classroom integration of Project WET activities: ( a) Experiencing activities first-hand, (b) interacting with other educators, and (c) learning about the Project WET Activity and Curriculum Guide. Almost 90% of survey respondents integrate some of the activities they experience during the workshop into their classrooms. Some of these teachers also …

Développement Exploratoire D'Une Approche Pour L'Évaluation Des Amines En Milieu De Travail Et Documentation Des Procédés Industriels Utilisant Ces Substances, Claude Ostiguy, Sylvain Tranchand, Jacques Lesage, Huu Van Tra

Rapports de recherche scientifique

Le règlement sur la qualité du milieu de travail contient des normes pour quarante-quatre amines différentes. Les risques à la santé de l’exposition à ces substances sont très diversifiés allant de l’irritation cutanée au cancer alors que plusieurs sont allergènes cutanés ou respiratoires et que d’autres peuvent causer divers problèmes, dont plusieurs d’ordre pulmonaires. La présente activité a permis d’identifier les activités industrielles mettant en oeuvre l’une ou l’autre de ces amines de même que de répertorier celles qui sont les plus susceptibles d’être rencontrées dans les entreprises québécoises. Globalement, l’industrie chimique, l’industrie des peintures et adhésifs et l’industrie des …

Les Simulations Centrées Sur L'Activité Au Cours De L'Accompagnement Ergonomique Des Projets Industriels : Deux Cas De Conception De Cabines De Véhicule Dans L'Industrie Métallurgique, Marie Bellemare, Sylvie Beaugrand, Micheline Marier, Christian Larue, Steve Vezeau

Rapports de recherche scientifique

Depuis les dernières décennies, les ergonomes sont appelés à non seulement réaliser des diagnostics, mais aussi à contribuer à l’implantation des recommandations qui en sont issues. Les ergonomes sont également de plus en plus nombreux à accompagner des projets d’entreprise : projets de construction de bâtiments, projets de réaménagement d’atelier, projets d’implantation de nouvelles technologies. Cette évolution de la pratique d’intervention se traduit par des développements théoriques et méthodologiques autour de la question suivante : comment intervenir dès la conception, afin de produire des situations de travail qui, tout en répondant à des critères de production, respectent la santé de …

Inquiry In Technology Education, Philip A. Reed, Kurt R. Helgeson (Ed.), Anthony E. Schwaller (Ed.)

STEMPS Faculty Publications

Technology education involves much more than instruction of the artifacts and methods of technology. The increasing amount and complexity of technology require students to know how to use, manage, assess, and understand technology. Inquiry is a cognitive instructional strategy that can help students learn about current technologies and also provide them with tools for investigating emerging technologies as they are encountered.

Table Of Contents (Vol. 74, Issue 1)

University of Colorado Law Review

No abstract provided.

Separation Custody, And Estate Planning Issues Relating To Companion Animals, Rebecca J. Huss

University of Colorado Law Review

No abstract provided.

Twenty-First Century Planning And The Constitution, Michael Lewyn

University of Colorado Law Review

No abstract provided.

A Doctrinal Traffic Jam: The Role Of Federal Preemption Analysis In Conflicts Between State And Tribal Vehicle Codes, Kathleen Corr

University of Colorado Law Review

No abstract provided.

The Tragedy Of Centralization: The Political Economics Of American Natural Resource Federalism, Jason Scott Johnston

University of Colorado Law Review

No abstract provided.

The Cow Says Moo, The Duck Says Quack, And The Dog Says Vote! The Use Of The Initiative To Promote Animal Protection, Joseph Lubinski

University of Colorado Law Review

No abstract provided.

Signaling And Regulation Of G Protein-Coupled Receptors In Airway Smooth Muscle., Charlotte K Billington, Raymond B Penn

Department of Medicine Faculty Papers

Signaling through G protein-coupled receptors (GPCRs) mediates numerous airway smooth muscle (ASM) functions including contraction, growth, and "synthetic" functions that orchestrate airway inflammation and promote remodeling of airway architecture. In this review we provide a comprehensive overview of the GPCRs that have been identified in ASM cells, and discuss the extent to which signaling via these GPCRs has been characterized and linked to distinct ASM functions. In addition, we examine the role of GPCR signaling and its regulation in asthma and asthma treatment, and suggest an integrative model whereby an imbalance of GPCR-derived signals in ASM cells contributes to the …

Evidence For The Involvement Of A Tsetse Midgut Lectin-Trypsin Complex In Differentiation Of Bloodstream-Form Trypanosomes, L. U. Abubakar, G. Zimba, C. Wells, F. Mulaa, E. O. Osir

All Peer-Reviewed Publications

We have previously described a bloodmeal-induced molecule (lectin-trypsin complex) from the midgut of the tsetse fly, Glossina longipennis, with both lectin and trypsin activities (Osir et al., 1995). In this paper, we report on the isolation of a similar molecule from the midguts of Glossina fuscipes fuscipes and provide direct evidence for its involvement in the development of African trypanosomes. The molecule (native Mr ∼65,700) has two non-covalently linked subunits, Mr ∼28,800 and Mr ∼35,700. The native molecule was found to be capable of inducing differentiation of bloodstream-form trypanosomes into procyclic (midgut forms) in vitro. In the assays, specific antibodies …

The Cosmic Battle For Planet Earth : Essays In Honor Of Norman R. Gulley, Jiri Moskala, Ron Du Preez

All Books

No abstract provided.