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Evidence For Cholinergic Inhibitory And Serotonergic Excitatory Neuromuscular Transmission In The Heart Of The Bivalve Mercenaria Mercenaria, Kiyoaki Kuwasawa, Robert A. Hill

Biological Sciences Faculty Publications

The heart of Mercenaria mercenaria is innervated bilaterally at the atria. A pair of cardiac nerves arise as a branch of the cerebro-visceral connective and run to the posterior end of the junction between each atrium and its efferent branchial vessel. Innervation evidently spreads over the heart, since both inhibitory and excitatory junctional potentials (IJPs and EJPs) can be recorded from the atria, the atrio-ventricular (AV) valve or the ventricle.

The cardiac nerves contain inhibitory and excitatory axons. Neural stimulation can cause increases in the frequency or amplitude of beating, depending on the strength and frequency of stimulation. Electrical stimulation …

Growth Of Vibrio Anguillarum In Salmon Intestinal Mucus, T. Garcia, K. Otto, S. Kjelleberg, David R. Nelson

Past Departments Faculty Publications (CELS)

The physiological changes of Vibrio anguillarum in response to growth in salmon intestinal mucus were investigated. Growth, survival, and changes in protein expression during growth in media supplemented with mucus were compared to growth and starvation in the identical media without mucus. V. anguillarum exhibited a rapid decline in CFU following growth in mucus as the sole carbon source. No such decline was observed in Luria broth with a 2% NaCl concentration, in glucose-minimal broth (3M), or during starvation in a carbon-, nitrogen-, and phosphorus-free salt solution (NSS). The changes in protein expression during growth in mucus were examined by …

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

Freshman Record

No abstract provided.

Growth Rates Of Planktonic And Newly Settled American Lobsters Homarusamericanus, Mary-Jane James-Pirri, J. Stanley Cobb

Biological Sciences Faculty Publications

Growth rates, as estimated by the RNA:DNA ratio, were determined for planktonic postlarvae and for recaptured and wild newly settled benthic stages (fifth and sixth instars) of the American lobster Homarus americanus. The mean growth rate of planktonic postlarvae in 1994 was 0.522 ± 0.247 mg protein d^-1. This was significantly higher than planktonic growth rates observed in 1991 (0.449 ± 0.121 mg protein d^-1) but not in 1992 (0.460 ± 0.144 mg protein d^-1). The percentage of poorly nourished planktonic postlarvae, those with growth rates <0.220 mg protein d^-1, ranged from 3 to 13% …

Undergraduate And Graduate Catalog Of The University Of Rhode Island 1997-1998, University Of Rhode Island

URI Course Catalogs Archive

This is a digitized, downloadable version of the Undergraduate and Graduate course catalog.

Phonological Awareness And Reading Achievement Of Children From Differing Socioeconomic Status Backgrounds, Krista L. Robertson

Open Access Dissertations

No abstract provided.

Nonenzymatic Glycation Of Human Fibrinogen And Myelin Basic Protein, Li Feng

Open Access Dissertations

No abstract provided.

Investigations Into The Causes Of Early Larval Mortality In Cultured Summer Flounder (Paralichthys Dentatus L.), David Alves

Open Access Master's Theses

Experiments were conducted to investigate larval mortality in cultured summer flounder during the first two weeks after hatch. The importance of feeding success, parentage, addition of algae, water quality, and the microbial community to mortality during this period were investigated. Larvae were raised in 2-L bowls at initial densities of 50 and 75/L with light aeration, 12L:12D photoperiod, and regular 1-L water changes. In all experiments mortalities were recorded and removed daily. In the first two experiments daily samples of larvae were taken to assess feeding success and to relate that to survival. The second experiment investigated the effects of …

Enhancing Social Service To At-Risk Children, James Paglia

Open Access Master's Theses

The Children, Youth & Families Issue Group, part of the University of Rhode Island's Cooperative Extension Service, has provided education outreach and technical assistance to community based social service providers since 1990. In an effort to enhance the effectiveness of the programming which they provide the group initiated a research project designed to illuminate strategies for increasing the effectiveness of community-based service provision. This study uses the theory of developmental contextualism as presented by Dr. Richard Lerner to suggest ways in which service providers can enhance their effectiveness by understanding the particular context of their community.

The study focuses on …

Waves Of Change: Women, Work, War, And Wedlock In Colonial Newport, Rhode Island, 1750-1775, Jonathan M. Beagle

Open Access Master's Theses

The intent of this thesis is to explore connections between gender relations and the construction of a local discourse by which residents of late colonial Newport, Rhode Island, interpreted the coming American Revolution. Historians in recent years have documented a relationship between gender and the rhetoric of the Revolution and separately have linked the development of commercial economies to a desire for independence in the colonies. However, relatively unexplored are the possible connections between the nature of gender relations within the emergent economies and the appeal for independence.

The emergence of an urban economy in Newport dominated by commerce and …

Influence Of Environmental Stress On Biomass Partitioning In Transgenic Tobacco Plants Expressing The Movement Protein Of Tobacco Mosaic Virus, S. Balachandran, Richard J. Hull, R. A. Martins, Y. Vaadia, W. J. Lucas

Plant Sciences and Entomology Faculty Publications

The influence of various environmental factors on biomass partitioning between shoots and roots in transgenic tobacco (Nicotiana tabacum) plants expressing the movement protein (MP) of tobacco mosaic virus (TMV) was investigated. TMV-MP-expressing transgenic plants exhibited a root-to-shoot ratio that was approximately 40% below that of transgenic vector control plants. When transgenic plants expressing the TMV-MP were subjected to water-stress conditions, the root-to-shoot ratio was increased to a value comparable to that of control plants subjected to the same water-stress treatment. Although the root-to-shoot ratio was increased by N or P deficiencies, the TMV-MP-induced alteration in biomass partitioning was not overcome. …

The Impact Of Childbirth Preparation And Support On Labor And Birth Outcomes, Ingrid Johnston-Robledo

Open Access Dissertations

No abstract provided.

The Three Hundred And Thirty-Third Report Of The Curricular Affairs Committee: Proposal For A Bachelor Of Science Degree In Environmental Plant Biology, University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.

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

Faculty Senate Bills

No abstract provided.

Purification And Characterization Of Diacylglycerol Pyrophosphate Phosphatase From Saccharomyces Cerevisiae, Wen-I Wu, Yongsheng Liu, Bettina Riedel, Josef B. Wissing, Anthony S. Fischl, George M. Carman

Past Departments Faculty Publications (College of Health Sciences)

Diacylglycerol pyrophosphate (DGPP) phosphatase is a novel membrane-associated enzyme that catalyzes the dephosphorylation of the β phosphate of DGPP to yield phosphatidate and P. DGPP phosphatase was purified 33,333-fold from Saccharomyces cerevisiae by a procedure that included Triton X-100 solubilization of microsomal membranes followed by chromatography with DE53, Affi-Gel Blue, hydroxylapatite, and Mono Q. The procedure resulted in the isolation of an apparent homogeneous protein with a subunit molecular mass of 34 kDa. DGPP phosphatase activity was associated with the 34-kDa protein. DGPP phosphatase had a broad pH optimum between 6.0 and 8.5 and was dependent on Triton X-100 for …

The Escherichia Coli K-12 Gntp Gene Allows E. Coli F-18 To Occupy A Distinct Nutritional Niche In The Streptomycin-Treated Mouse Large Intestine, Neal J. Sweeney, Per Klemm, Beth A. Mccormick, Eva Moller-Nielsen, Maryjane Utley, Mark A. Schembri, David C. Laux, Paul S. Cohen

Past Departments Faculty Publications (CELS)

Escherichia coli F-18 is a human fecal isolate that makes type 1 fimbriae, encoded by the fim gene cluster, and is an excellent colonizer of the streptomycin-treated mouse intestine. E. coli F 18 fimA::tet, lacking type 1 fimbriae, was constructed by bacteriophage P1 transduction of the fim region of the E. coli K-12 strain ORN151, containing the tetracycline resistance gene from Tn10 inserted in the fimA gene, into E. coli F-18. E. coli F-18 fimA::tet was found to occupy a distinct niche in the streptomycin-treated mouse intestine when fed in small numbers (104 CFU) to mice, along with …

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

Freshman Record

No abstract provided.

The Cumulative Impacts Of Management Decisions On Nitrogen Loading To The Rhode Island Salt Ponds, Laura M. Ernst

Marine Affairs Theses and Major Papers

Calculations and measurements of nitrogen in groundwater, stream flow and atmospheric deposition were used to see if the cumulative impacts of management decisions over a fifteen year period of time resulted in measurable changes in nitrogen loading to six of the salt ponds on the south shore of Rhode Island. The changes in the source and transmission of nitrogen were tested by comparing calculated and measured nitrogen data from 1980 and 1995. The calculated method included a nitrogen budget based on land-use and literature values for nitrogen loss to groundwater. The second method compared concentrations of nitrogen in groundwater taken …

The Reproductive Biology Of Lyonsia Hyalina (Conrad, 1831) (Mollusca: Bivalvia: Anomalodesmata): Ultrastructural Aspects Of Spermatogenesis And Oogenesis, Kenneth A. Thomas

Open Access Dissertations

No abstract provided.

Beta-Carotene's Metabolism, Distribution And Influence Upon Cell Proliferation And Structure In Ncl-H69 Small Cell Lung Cancer Cells, Pankaj Prakash

Open Access Dissertations

No abstract provided.

Olfactory Glutamate Reception In Atlantic Salmon (Salmo Salar), Jiongdong Pang

Open Access Dissertations

No abstract provided.

Staging And Decisional Balance Measures For Two Diabetes Self-Management Behaviors, Janet Marie Dryfoos

Open Access Master's Theses

Recent research shows proper performance of self-care regimens helps postpone development, slow progression, and alleviate symptoms of the many complications of diabetes mellitus. The Transtheoretical Model (TTM) is a systematic approach to the acquisition of health behaviors, showing remarkable success across a wide range of behaviors.

A total of 2056 participants with Insulin Dependent Diabetes Mellitus and Non-Insulin Dependent Diabetes Mellitus were proactively recruited, and assessed regarding their typical performance of glucose testing and medication adherence. The two constructs of the TTM that were investigated were Stage of Change and Decisional Balance. For both behaviors, measure development followed the same …

Growth And Behavior During The Settlement Period Of The American Lobster, Homarus Americanus, Mary-Jane James-Pirri

Open Access Dissertations

No abstract provided.

Mechanism For Texture Modifying Effects Of Hydrodynamically Active Biopolymers In Composite Surimi Gel, Ivan Filipi

Open Access Dissertations

No abstract provided.

Making Maternal-Child Home Visits: A Field Research Investigation, Mary E. Byrd

Open Access Dissertations

No abstract provided.

Texture Modification Of The Soft-Fleshed Giant Grenadier (Albatrossia Pectoralis), Charles Alan Crapo

Open Access Dissertations

No abstract provided.

Breastfeeding Self-Efficacy: The Effects Of A Breastfeeding Promotion Nursing Intervention, Suzanne Hetzel Campbell

Open Access Dissertations

No abstract provided.

Growth, Grazing And Bioluminescence Of Marine Heterotrophic Dinoflagellates, Yaqin Li

Open Access Dissertations

No abstract provided.

The Three Under And Twenty-Ninth Report Of The Curricular Affairs Committee, University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.

Curricular Report No. 1994-95-7 From The Graduate Council To The Faculty Senate, University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.