Digital Commons Network^™

Chemical Synthesis And Purification Of Biologically Active Phosphonolipids: Pulmonary Surfactant Analogs, Winnie Hui Chiun Lin

Open Access Dissertations

No abstract provided.

The Impact Of Natural And Induced Stress On Variation And Adaptation Within Populations Of Dennstaedtia Punctilobula (Michx.) Moore, Susan Chandler Lum Hammen

Open Access Dissertations

No abstract provided.

Predicting Termination And Continuation Status In Psychotherapy Using The Transtheoretical Model, Mary Ellen Medeiros

Open Access Dissertations

No abstract provided.

Changes In Neuromuscular Transmission In The Claw Opener Of The Lobster (Homarus Americanus) During The Molt Cycle, Mary Lois Schwanke

Open Access Dissertations

No abstract provided.

Electrochemical Studies Of The Reaction Of Carbon Dioxide With Transition Metal Complexes In Nonaqueous Electrolyte, Dorothea Ann Durand

Open Access Dissertations

No abstract provided.

A Comparison Of Methods Of Stock Identification Of The Silver Hake, Merluccius Bilinearis, Paul Stephen Joyce

Open Access Dissertations

No abstract provided.

The Sources, Transport, And Fate Of Polychlorinated Biphenyls In Narragansett Bay, James Stephen Latimer

Open Access Dissertations

No abstract provided.

Effects Of Eutrophication On The Biogeochemical Cycling Of Carbon, Oxygen, Sulfur And Energy In Coastal Marine Ecosystems, Peter Andre Sampou

Open Access Dissertations

No abstract provided.

Peer Assessment As A Predictor Of School Outcomes For Handicapped And Nonhandicapped Students In Mainstream Settings, Mark A. Schreffler

Open Access Dissertations

No abstract provided.

An Economic Policy Model For Net-Pen Salmon Aquaculture Development: A Dynamic Multilevel Approach, Gilbert Sylvia

Open Access Dissertations

No abstract provided.

Ecology Of Oceanic Diatoms: Investigations Of Symbioses, Suspension And Growth Dynamics Of Selected Rhizosolenia Species, Tracy Alan Villareal

Open Access Dissertations

No abstract provided.

Nonpoint Source Pollutant Monitoring And Modeling In A Large Reservoir Watershed, Igor Runge

Open Access Dissertations

No abstract provided.

Antarctic Paleoceanography, Lowell D. Stott

Open Access Dissertations

No abstract provided.

George Herbert's Temple Of Sanctification, James Frederick Wardwell

Open Access Dissertations

No abstract provided.

Ecology And Heat Shock Physiology Of Low-Temperature Fungi Of Temperate And Alpine Forest Soils, Margaret Mary Carreiro

Open Access Dissertations

No abstract provided.

Inducing Perceptual Set Effects In Associative Memory Systems, Thomas J. Skrmetti

Open Access Master's Theses

This experiment was designed to investigate the mechanisms underlying perceptual set effect. It was hypothesized that a change in synaptic resistance due to previous experience is the operational mechanism underlying perceptual set effect. An associative memory model was used to simulate a simple neural circuit. Experience of the model was manipulated by exposure to a set of unambiguous stimuli. A classification task involving ambiguous stimuli was used to measure perceptual set effect.

Two independent variables were manipulated. The first involved the structure of the stimuli as measured by the Hamming Distance. The second involved the learning rate variable of the …

A Study On Causal Thinking Young Children’S Ability To Differentiate Fantasy From Reality, Ellen Lee Kenner

Open Access Master's Theses

According to Piaget, children in the "preoperational stage" of development have difficulty separating fantasy from reality, the mental realm from the physical realm. This stage theory of cognitive development is called into question by the current study. In this study, 48 four-year olds performed a judgment task consisting of causality questions after having listened to either a fantasy or a reality based story. Results from the Tukey test across story types and the control group (no story) support the hypothesis that children can differentiate physical entities from thoughts about physical entities, (i.e., Tukey summary statistic, dT=58. 07, p<. 05) and physical entities from thoughts about fantastical entities, (i.e., Tukey summary statistic, dT=63.80, p<.05). It was also found that children can differentiate fantasy from reality. Findings show that the environmental influence (fantasy or reality story) had no influence on the nature of the children's responses in the subsequent judgment task. Results from two experimenters concurred with the above findings, however their results differed significantly from each other. Verbal responses given by the children further support the data that children can differentiate the mental realm from the physical realm.

Relationships Among Hydrology, Vegetation And Soils In Transition Zones Of Rhode Island Red Maple Swamps, Sarah D. Allen

Open Access Master's Theses

Reaching a consensus on wetland boundary determination criteria has been hampered by imprecise definitions of the distinguishing features of wetland and upland. Wetland transition zone research, of which this thesis project was a part, was undertaken in red maple swamps in Rhode Island to examine the relationships among hydrology, vegetation, and soils, and to develop field criteria for locating wetland boundaries using these parameters.

In this thesis, three years of hydrologic data were used in cluster and discriminant analysis to classify sampling stations as wetland or upland. In most cases, the wetland/upland hydrologic break fell on the border between very …

Analysis Of Thiamin By Reverse Phase C18 Open Column Chromatography, Abdullah M. Alyabis

Open Access Master's Theses

A modification of the AOAC method for thiamin determination utilizing reversed phase (RP) C₁₈ packing material was developed for analysis of milk, infant formula and breakfast cereal products. Thiamin was extracted from food samples and hydrolyzed following a similar Association of official Analytical Chemists (AOAC) (1984) procedure. The sample filtrate was purified by passing through the reversed phase C₁₈ column. An isocratic mobile phase consisting of 3% KCl and methanol (70 : 30) was used to elute thiamin from the reversed phase C₁₈ column. The sample eluate was oxidized to thiochrome and quantified on a fluorometer using …

Changes In Steroid Hormones During Oocyte Development In The Striped Bass, Morone Saxatilis, David L. Berlinsky

Open Access Dissertations

No abstract provided.

Spatial Overlap And Dietary Preference Of The Native Silver Rice Rat (Oryzomys Argentatus) And The Exotic Black Rat (Rattus Rattus) In The Florida Keys, Numi C. Goodyear

Open Access Dissertations

No abstract provided.

The Blood And Hematopoietic Cells In Atlantic Salmon (Salmo Salar) And Their Relation To Infectious Hematopoietic Necrosis Disease, Tien-Lai Hsu

Open Access Dissertations

No abstract provided.

Recent And Historical Accumulation Of Trace Metal Contaminants In The Sediment Of Narragansett Bay, Rhode Island, Jeffrey M. Corbin

Open Access Master's Theses

The sediments of Narragansett Bay provide a record of historical as well as recent pollution input to the bay waters. In order to properly construct a history of metal contamination from a sediment core, it is first important to understand the present day sources and behavior of metal contaminants in the surface sediment. This approach justifies the organization of this thesis. The general chemistry, behavior and primary sources of trace metals in Narragansett Bay sediment is discussed first, and then the factors controlling the present day distribution of trace metals in the surface sediment are detailed. Combining the calculated sedimentation …

Cloning And Characterization Of The Aeromonas Caviae Cellobiose Utilization Operon And Its Role In Late Lactose Fermentation, Mark Randall Rodgers

Open Access Dissertations

No abstract provided.

Sensitivity Of Cultured Mammalian Cells To Oxidative Stress, Arthur Adelard Messier

Open Access Dissertations

No abstract provided.

Characterization Of Porcine Small Intestine Mucus Receptors For The Escherichia Coli K88 Adhesin, John William Metcalfe

Open Access Dissertations

No abstract provided.

Studies On The Obligately Psychrophilic Vibrios Of Fish Origin And The Characteristics Of Their Proteases, Ibrahim Makarios-Laham

Open Access Dissertations

No abstract provided.

The Chemistry Of Triazine Nucleosides, Subhasish Purkayastha

Open Access Dissertations

No abstract provided.

Growth Characteristics, Heat Resistance And Ascospore Ultrastructure Of Neosartorya Fischeri, Vasiliki Valerie H. Tournas

Open Access Dissertations

No abstract provided.

On The Mechanism For Inhibition Of Ureagenesis By Sodium Benzoate, Douglas Martin Cyr

Open Access Dissertations

No abstract provided.