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University College And General Education Committee Report #2000-01-1: Recommendations Of The President's Commission On General Education, University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.

The Three Hundred And Ninety-First Report Of The Curricular Affairs Committee, University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.

Surfo Technical Report No. 2001-02, Surfo

SURFO Technical Reports

The 2001 technical reports written by undergraduate students participating in the SURFO (Summer Undergraduate Research Fellowships in Oceanography) Program while at the University of Rhode Island.

Division Of Research And Economic Development Annual Report For Fy2001, Uri Division Of Research And Economic Development

Reports (Research and Economic Development)

Annual report for the Division of Research and Economic Development of the University of Rhode Island for the year 2000-2001.

Includes statistics of project proposals, expenditures, URI Foundation Awards, previous annual report summaries and awards received by individual academic and administrative departments.

Evolution Of Upper Jaw Protrusion Mechanisms In Elasmobranchs, Cheryl Wilga, Robert E. Hueter, Peter C. Wainwright, Philip J. Motta

Biological Sciences Faculty Publications

Upper jaw protrusion is a prominent component of the feeding mechanism in most elasmobranchs and has received considerable attention over the years. In this paper, we review what is known of muscle activity during prey capture in elasmobranchs, particularly that of upper jaw protrusion, and evaluate the extent to which functional modifications have evolved through changes in anatomy or patterns of muscle activity. To date, motor activity during feeding has been documented in only four species of elasmobranchs, although they represent the three major elasmobranch groups: Galea (typical sharks); Squalea (dogfish sharks); and Batoidea (skates and rays). Our efforts show …

On Representing Signals Using Only Timing Information, Ramdas Kumaresan, Yadong Wang

Past Departments Faculty Publications (College of Engineering)

It is well known that only a special class of bandpass signals, called real-zero (RZ) signals can be uniquely represented (up to a scale factor) by their zero crossings, i.e., the time instants at which the signals change their sign. However, it is possible to invertibly map arbitrary bandpass signals into RZ signals, thereby, implicitly represent the bandpass signal using the mapped RZ signal’s zero crossings. This mapping is known as real-zero conversion (RZC). In this paper a class of novel signal-adaptive RZC algorithms is proposed. Specifically, algorithms that are analogs of well-known adaptive filtering methods to convert an arbitrary …

Site Fidelity, Philopatry, And Survival Of Promiscuous Saltmarsh Sharp-Tailed Sparrows In Rhode Island, Deborah A. Diquinzio, Peter W. C. Paton, William R. Eddleman

Natural Resources Science Faculty Publications

We investigated site fidelity and apparent survival in a promiscuous population of Saltmarsh Sharp-tailed Sparrows (Ammodramus caudacutus) in southern Rhode Island. Based on capture–recapture histories of 446 color-banded sparrows studied from 1993 to 1998 at our primary study site, Galilee, we observed significant variation in apparent survival rates among years, but not between sexes. Return rates of adult males (37.6%) and females (35.6%) were not significantly different during any year. Juveniles exhibited high return rates, ranging from 0 to 44%, with males (61% of returns) more likely to return than females (35%). In addition, we monitored movements of …

Oviposition, Development, And Feeding Of Scymnus (Neopullus) Sinuanodulus (Coleoptera: Coccinellidae): A Predator Of Adelges Tsugae (Homoptera: Adelgidae), Wenhua Lu, Michael E. Montgomery

Past Departments Faculty Publications (CELS)

The hemlock woolly adelgid, Adelges tsugae Annand, is a major threat to hemlocks in the eastern United States. As part of efforts to control this pest, Scymnus (Neopullus) sinuanodulus Yu et Yao, a potential predator, was collected from hemlocks in Yunnan, China. Three shipments were imported during 1996 and 1997 to a quarantine laboratory to study the beetle’s biology. Beetles began oviposition immediately after transferal from 5°C in the spring, ceased oviposition by June, and laid the same number of eggs, whether egg laying began in February or in April. Two-year-old beetles laid as many eggs per year …

New Student Record : The University Of Rhode Island, The Interfraternity/Panhellenic Councils

Freshman Record

No abstract provided.

Renaissance 2001, University Of Rhode Island

URI Yearbooks

This is a digitized, downloadable version of the University of Rhode Island yearbook.

Role Of Ca2+ In Excitation-Contraction Coupling In Echinoderm Muscle: Comparison With Role In Other Tissues, Robert B. Hill

Biological Sciences Faculty Publications

The longitudinal muscle of the body wall of Isostichopus badionotus may be considered a model for excitation-contraction coupling in echinoderm muscle. Other echinoderm muscles are reviewed by comparison with the model. Echinoderm muscle is also of interest as a model for ‘mutable collagenous tissue’; however, in that tissue, Ca²⁺ has been proposed to function both in living control systems and in regulation of non-living interstitial substance.

Heat Shock Proteins And Osmotic Shock In Atlantic Salmon (Salmo Salar), Feng Pan

Open Access Dissertations

Heat shock proteins are molecular chaperones. Atlantic salmon is a major aquaculture species in the world, their anadromous nature made them encounter osmotic shock twice in the life cycle. Salmon prior treated with a mild thermal shock observed a significantly higher survival rate upon transfer to hyperosmotic seawater than control fish. Heat shock protein 70 was prominently induced and persisted up to 24 hours after initial heat shock. Fish with prior heat shock treatment exhibited significant higher rate of protein synthesis over control after transfer to seawater. Hsp90 is known to enhance the fidelity of glucocorticoid hormone and receptors. Northern …

Analysis Of A Proposed Model For Detection Of Magnetic Fields By Biological Systems, Su-Hsiu Wu

Open Access Dissertations

Numerous reports have indicated that some biological effects of relatively weak alternating magnetic fields depend upon the presence and magnitude of a parallel-directed static magnetic field. One explanation of these phenomena is parametric resonance mechanism, originally proposed by Lednev and also applied in modified form by Blackman and Blanchard. The mechanism, as formulated by Lednev, involves the Zeeman splitting of infrared vibration levels of Ca2+ ions within proteins such as calmodulin. It is shown that this model can be formulated using mostly classical physics. In this formulation the linear vibration path of an oscillating ion is set into uniform rotation …

Changes In Copepod Distributions Associated With Increased Turbulence From Wind Stress, L. S. Incze, David L. Hebert, N. Wolffe, N. Oakey, D. Dye

Graduate School of Oceanography Faculty Publications

Vertical profiles of turbulent kinetic energy dissipation rate (ε), current velocity, temperature, salinity, chlorophyll fluorescence, and copepods were sampled for 4 d at an anchor station on the southern flank of Georges Bank when the water column was stratified in early June 1995. Copepodite stages of Temora spp., Oithona spp., Pseudocalanus spp., and Calanus finmarchicus, and all of their naupliar stages except for Temora spp., were found deeper in the water column when turbulent dissipation rates in the surface mixed layer increased in response to increasing wind stress. Taxa that initially occurred at the bottom of the surface mixed …

Temporal And Spatial Occurrence Of Thin Phytoplankton Layers In Relation To Physical Processes, Margaret M. Dekshenieks, Percy L. Donaghay, James M. Sullivan, Jan E. B. Rines, Thomas R. Osborn, Michael S. Twardowski

Graduate School of Oceanography Faculty Publications

In 1996 three cruises were conducted to simultaneously quantify the fine-scale optical and physical structure of the water column. Data from 120 profiles were used to investigate the temporal occurrence and spatial distribution of thin layers of phytoplankton as they relate to variations in physical processes. Thin layers ranged in thickness from a few centimeters to a few meters. They may extend horizontally for kilometers and persist for days. Thin layers are a recurring feature in the marine environment; they were observed and measured in 54% of our profiles. Physical processes are important in the temporal and spatial distribution of …

Growth And Development Rates Of The Copepod Calanus Finmarchicus Reared In The Laboratory, Robert G. Campbell, Melissa M. Wagner, Gregory J. Teegarden, Carla A. Boudreau, Edward G. Durbin

Graduate School of Oceanography Faculty Publications

Development rates, nitrogen- and carbon-specific growth rates, size, and condition were determined for the copepod Calanus finmarchicus reared at 3 temperatures (4, 8, and 12°C) at non-limiting food concentrations and 2 limiting food concentrations at 8°C in the laboratory. Development rates were equiproportional, but not isochronal. Naupliar stage durations were similar, except for non-feeding stages, which were of short duration, and the first feeding stage, which was prolonged, while copepodite stage durations increased with increasing stage of development. Under limiting food concentrations at 8°C, development rates were prolonged but similar relative patterns in stage durations were observed. Body size (length …

Uri Undergraduate And Graduate Course Catalog 2001-2002, University Of Rhode Island

URI Course Catalogs Archive

This is a digitized, downloadable version of the University of Rhode Island course catalog.

β-Glucuronidase Assay For The Detection Of Escherichia Coli In Foods, Seref Tagi

Open Access Dissertations

Enzyme assays were developed for the measurement of β-D-glucuronide (GUS) as a rapid detection method for E. coli in food. A fluorescent assay utilizing 4-methylumbelliferyl-β-D-glucuronide as substrate was optimized and tested with growth cultures of E. coli. A relationship between E. coli and the level of GUS activity was established. A chemiluminescent assay using a 1,2-dioxetene derivative as substrate was compared to the fluorescent assay, and was found to be 10x more sensitive. Anti-E. coli GUS antibodies were covalently immobilized on magnetic beads and used in a 30 min immunocapture method. GUS was recovered from E. coli grown at 37°C …

Anoxia Tolerance And Recovery In Freshwater And Marine Turtles, Malia Lois Schwartz

Open Access Dissertations

Anoxia tolerance and recovery in freshwater and marine turtles were investigated. This study quantified several factors thought to influence anoxia tolerance and recovery, including body size, feeding history, season, the turtle's sex, and repetitive entrapment. In Chrysemys picta bellii, body size had little effect on anoxic metabolism, although small turtles regained normal behavior more rapidly and exhibited no lag in lactate clearance. Feeding history also had little effect on anoxia tolerance, but turtles that had recently fed recovered more slowly than fasted animals. There were no differences between the sexes in anoxia tolerance; however, females recovered faster behaviorally. The lack …

Applying The Transtheoretical Model Of Change To Stress Management Among Adolescents: Development And Validation Of Decisional Balance And Confidence Measures, Leanne M. Mauriello

Open Access Master's Theses

The negative physical and psychological health consequences of stress are a significant and prevalent concern for our society. This study proposes using the Transtheoretical Model to increase stress management behaviors among adolescents. As a first step in doing so, measures of decisional balance and self-efficacy were developed on a pilot sample of 317 ninth and tenth graders from a public, New England high school. Using a split-half cross-validation procedure, exploratory and confirmatory analyses produced two, internally consistent instruments. The resulting decisional balance measure includes 4 items to measure the pros of practicing stress management and 4 items to measure the …

Death And Identity: Consumer Behavior In Asante Death Rituals, Samuel Kwaku Bonsu

Open Access Dissertations

Poorer societies have been ignored in scholarly dialogue on consumer behavior and consumption. The globalization of markets and consumption makes it imperative for marketing and consumer researchers to pay attention to these societies. This dissertation, therefore, explored the dynamics of consumer product decisions and how choices are used by the bereaved to negotiate identities for themselves and the deceased among the Asante people of Ghana. The study focused on the increasingly important role of the ritualized consumption of death ritual products among the Asante people of Ghana. West Africa, and examined the socio-cultural sources of influence on death product choices …

Development, Validation And Factorial Invariance Of Transtheoretical Model Measures For Recovery From Anorexia Nervosa And Bulimia Nervosa, Patricia Janet Jordan

Open Access Dissertations

The purpose of this study was to advance understanding of the self-change process in recovery from anorexia nervosa (AN) and bulimia nervosa (BN) through: (a) development of a staging instrument for recovery from BN; (b) development of TTM-based measures, including decisional balance, self-efficacy, and processes of change; (c) invariance testing of these measures across AN and BN subsamples; and (d) characteristic description of individuals at each stage of change. The sample (N = 427) was composed of AN subgroup (n = 278) and BN subgroup (n = 149) who completed questionnaires measuring all constructs of the TTM, as well as …

The Global Stability, Boundedness, And Periodicity Character Of Certain Difference Equations, Michael Alexander Radin

Open Access Dissertations

We study the global stability, the boundedness nature, and the periodic character of the positive solutions of the difference equation [special characters omitted]where the parameters α and β are positive real numbers and the initial conditions x−1 and x0 are arbitrary non-negative real numbers. This problem was proposed by Dr. Richard Levins of the Harvard School of Public Health as a population model in Mathematical Biology. We consider α to be the immigration rate and β to be the population growth rate. We will also investigate the periodic character and the boundedness nature of all positive solutions of following two …

Aspects Of The Physiology Of Early Juvenile Cod (Gadus Morhua L.) And Haddock (Melanogrammus Aeglefinus L.), Myron Arms Peck

Open Access Dissertations

In this research, the effects of temperature, body size, and/or feeding level on a variety of bioenergetic parameters in early (age-0) juveniles of both Atlantic cod (Gadus morhua L.) and haddock (Melanogrammus aeglefinus L.) were quantified. Bioenergetic parameters were measured at temperatures (5, 8, 12, and 15°C) experienced by field fish, using a range in fish sizes (3 to 13 cm TL) encompassing the first year of juvenile growth. In the first study, the relationship between cod and haddock growth rate (GI) and feeding-level (C) was quantified at different temperatures. The shape of the GI - C relationship and growth …

The Development Of A Measure Of Attention In Children, Janette Baird

Open Access Master's Theses

A study was conducted to evaluate the effectiveness of a Preschool Measure Of Attention (PMA) to measure three factors of attention in young children; focus, shift and vigilance. The parents of 148 children rated their children on the PMA, a measure of temperament and on a scale of attentional problems. The results of the study suggest that two factors of attention; vigilance and focus/distractibility, were measured in this group. Age differences in the performance of the sample on these attentional factors were not found to be significant. However the age of the children accounted for 5 percent of the variance …

Factors Affecting Adherence To Antiretroviral Therapy In Hiv Positive Injection Drug Users (Idus) And Non-Idus., Dipti R. Salgaonkar

Open Access Master's Theses

The study of adherence to antiretroviral therapy among HIV positive Injection Drug Users (IDUs) has been largely neglected. Many clinicians believe that this group is too unreliable to take these medications, particularly in the early stage of their recovery from drug abuse when they are vulnerable to relapse. This is the first study of its kind to compare medication adherence rates between HIV positive injection drug users and non-users.

The medication adherence among IDUs and non-IDUs was compared in an HIV infected population (n=143) who were currently on antiretroviral therapy. The factors affecting medication adherence were also examined in the …

Inhibition Studies Of Protein Phosphatase 2a By Known Cathartic Plant Drugs, Michael Ford

Open Access Master's Theses

Protein phosphatases play significant roles in signal transduction pathways that regulate cellular processes in response to external/internal stimuli. They are crucial for the growth, division, and differentiation of all organisms. Examples of cell functions involving reversible phosphorylation include ion transport, metabolism, cell cycle progression, developmental control, and stress responses. Serine/threoninespecific protein phosphatases are of particular interest in this study. There are two types of serine/threonine-specific protein phosphatases: type 1 & type 2. Both protein phosphatase 1 (PPl) and protein phosphatase 2A (PP2A) are inhibited by a structurally diverse group of natural toxins produced by marine organisms that cause diarrhetic shellfish …

Optimal Exploitation Of Atlantic Herring Stocks In United States Of America: Bioeconomic Model For Atlantic Herring, Jung-Hee Cho

Open Access Dissertations

The Atlantic herring, Clupea harengus, is a pelagic species widely distributed in continental shelf waters along the Atlantic coast from the Gulf of Maine to Cape Hatteras. Even though the herring fishery is a relatively small portion of the East coast fishing industry, herring is important as bait for lobster fisheries and a component of the food web of the Northwest Atlantic Ocean. Currently, the herring resource is in an under-exploited state and catches are less than one-third of Maximum Sustainable Yield. The herring fishery is reviewed in term of markets, resource, and management. Because herring is very vulnerable to …

Study Of The Gender Representations Within The Aliens Series, Whitney Anspach

Open Access Master's Theses

This study employed a detailed examination of and comparison between and among each of the four films within the Alien series to explore and demonstrate distinct differences in gender representation in the series. This study has also determined that there exists a relationship between these differing gender representations and concurrent changes in the gender norms of films created for the primary target audience the United States with secondary international audiences. This determination was aided by a detailed examination of the gender norms in multiple genres including science fiction, action, horror, and hybrid mixtures of these three. In addition, gender representations …

The National Invasive Species Act Of 1996: An Assessment Of Current Statutes And Potential Changes And Improvements For Future Legislation Regarding Ballast Water Discharge And Prevention Of Invasion By Non-Indigenous Species, Alison P. Armstrong

Open Access Master's Theses

Ninety-five percent of consumer goods used in the United States reach the markets by way of vessel transport. Each of these vessels carries ballast water, and with it, exotic organisms from ports around the world that can threaten native ecosystems.

A survey (n=10) conducted to gather perceptions on existing ballast water legislation shows that those state and federal agencies who are involved agree on certain aspects of the issue, but there are broad areas of dissent regarding other aspects. Policy actors do feel that this issue must be regulated, however, an agreement on how to reach the goals of ballast …