Digital Commons Network^™

Uri Undergraduate And Graduate Course Catalog 2011-2012, University Of Rhode Island

URI Course Catalogs Archive

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

Physical And Chemical Interactions Between Marine Phytoplankton And Particle-Colonizing Bacteria, Jason Robert Graff

Open Access Dissertations

It is inherently difficult to study the direct interactions between marine microbes due to the size of the organisms and microscale environments in which they exist. Recent evidence suggests that the direct associations between marine phytoplankton and particle-colonizing bacteria can influence marine microbial community succession, microalgal primary production, toxin production by marine phytoplankton, and have potential implications for human health. The goal of this dissertation was to elucidate some of the physical and chemical mechanisms that regulate microbial interactions, particularly the colonization of phytoplankton and other marine particles by bacteria. To accomplish these goals, I used a creative and multi-disciplinary …

Uri Undergraduate And Graduate Course Catalog 2010-2011, University Of Rhode Island

URI Course Catalogs Archive

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

Lipid Bilayer-Nanoparticle Interactions In Nanotoxicology And Nanomedicine, Yanjing Chen

Open Access Dissertations

Nanoparticle (NP) interactions that may destabilize cell membranes and cause toxicity can also be used to design and control therapeutic assemblies. Fundamentally examining interactions between NPs and cell membranes is crucial to understanding NP toxicity mechanisms and the development of safe and non-toxic NP-based commercial and therapeutic applications. In this dissertation it is demonstrated that self-assembled lipid bilayers can be employed as model membranes to determine NP interact ions. First, protocols were developed for examining hydrophobic and hydrophilic NP-bilayer interactions using lipid bilayer vesicles or liposomes. Second, interactions between liposomes and NPs were characterized by examining changes in liposome structure, …

Modeling The Impact Of Declining Sea Ice On The Arctic Marine Planktonic Ecosystem, Jinlun Zhang, Yvette H. Spitz, Michael Steele, Carin Ashjian, Robert Campbell, Léo Berline, Patricia Matrai

Graduate School of Oceanography Faculty Publications

We have developed a coupled 3‐D pan‐Arctic biology/sea ice/ocean model to investigate the impact of declining Arctic sea ice on the marine planktonic ecosystem over 1988–2007. The biophysical model results agree with satellite observations of a generally downward trend in summer sea ice extent during 1988–2007, resulting in an increase in the simulated photosynthetically active radiation (PAR) at the ocean surface and marine primary productivity (PP) in the upper 100 m over open water areas of the Arctic Ocean. The simulated Arctic sea ice thickness has decreased steadily during 1988–2007, leading to an increase in PAR and PP in sea …

Eugenia Jambolana Lam. Berry Extract Inhibits Growth And Induces Apoptosis Of Human Breast Cancer But Not Non-Tumorigenic Breast Cells, Liya Li, Lynn S. Adams, Shiuan Chen, Caroline Killian, Aftab Ahmed, Navindra P. Seeram

Biomedical and Pharmaceutical Sciences Faculty Publications

The ripe purple berries of the native Indian plant Eugenia jambolana Lam., known as Jamun, are popularly consumed and available in the United States in Florida and Hawaii. Despite the growing body of data on the chemopreventive potential of edible berry extracts, there is paucity of such data for Jamun fruit. Therefore our laboratory initiated the current study with the following objectives: (1) to prepare a standardized Jamun fruit extract (JFE) for biological studies and (2) to investigate the antiproliferative and pro-apoptotic effects of JFE in estrogen dependent/aromatase positive (MCF-7aro), and estrogen independent (MDA-MB-231) breast cancer cells, and in a …

Uri Undergraduate And Graduate Course Catalog 2009-2010, University Of Rhode Island

URI Course Catalogs Archive

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

Numerical Quantification Of Perkinsus Marinus In The American Oyster Crassostrea Virginica (Gmelin, 1791) (Mollusca: Bivalvia) By Modern Stereology, Antonio Remacha-Trivino, Doranne Borsay-Horowitz, Christopher Dungan, Ximo Gual-Arnau, Javier Gomez-Leon, Luisa Villamil, Marta Gomez-Chiarri

Fisheries, Animal and Veterinary Sciences Faculty Publications

Species of Perkinsus are responsible for high mortalities of bivalve molluscs world-wide. Techniques to accurately estimate parasites in tissues are required to improve understanding of perkinsosis. This study quantifies the number and tissue distribution of Perkinsus marinus in Crassostrea virginica by modern stereology and immunohistochemistry. Mean total number of trophozoites were (mean ± SE) 11.80 ± 3.91 million and 11.55 ± 3.88 million for the optical disector and optical fractionator methods, respectively. The mean empirical error between both stereological approaches was 3.8 ± 1.0%. Trophozoites were detected intracellularly in the following tissues: intestine (30.1%), Leydig tissue (21.3%), hemocytes (14.9%), digestive …

Uri Undergraduate And Graduate Course Catalog 2008-2009, University Of Rhode Island

URI Course Catalogs Archive

No abstract provided.

Exploring Subseafloor Life With The Integrated Ocean Drilling Program, Steven D'Hondt, Fumio Inagaki, Timothy Ferdelman, Bo Barker Jørgensen, Kenji Kato, Paul Kemp, Patricia Sobecky, Mitchell Sogin, Ken Takai

Graduate School of Oceanography Faculty Publications

No abstract provided.

Physical Property And Chemical Characteristics Of Surface Sediment Grab Samples From Narragansett Bay And The Providence And Seekonk Rivers, D. W. Murray, W L. Prell, C E. Rincon, E Saarman

Narragansett Bay Collection

This document contains data tables, maps, plots, and documentation on Brown

University’s Narragansett Bay Sediment Project compiled by David W. Murray, Brown

University, for the New England Interstate Water Pollution Control Commission with

support from the U.S. Environmental Protection Agency. The data were compiled and

analyzed as part of a New England pilot project exploring the development of a

biological condition gradient applicable to estuarine systems.

Needs Assessment, Creation, And Utilization Of The Coastal Geotoolbox, Arthur Rodriguez

Open Access Master's Theses

Barrier islands are extremely dynamic landforms, and one of the most dynamic aspects of a barrier island is the beach. In an effort to document change in these environments, the National Park Service (NPS) Inventory & Monitoring Program Northeast Coast & Barrier Network (NCBN) have established a set of coastal geomorphology protocols to collect ecological indicator datasets. Two of the most important and readily available sources of data within these protocols are horizontal shoreline locations collected by global positioning systems (GPS), and general beach topography collected by lidar topographic surveys. There are several methods used to quantify the amount of …

Assessment Of The Rhode Island Coastal Lagoon Ecosystem, Kathryn Hale Ford

Open Access Dissertations

The health of the Rhode Island coastal lagoon ecosystem is of importance due to its critical role as a wildlife habitat and recreation destination. As human population continues to expand along the coast, this ecosystem will receive increasing pressure from contaminants. By examining how the lagoons have changed in the past, we can postulate what variables are linked to change. Current conditions need to be thoroughly studied to provide a baseline with which to study future change, as well as to determine areas of concern in the lagoons. In order to understand how the ecosystem responds to such pressures, a …

Fish Landmarks For Chromosome 11 Of Bombyx Mori: An In Situ Analysis, Charles Eugene Mcgovern

Open Access Dissertations

Fluorescence in situ hybridization (FISH) has been used to simultaneously identify the positions of the ribosomal DNA and the Sericin genes on chromosome 11 of Bombyx mori. The ribosomal DNA genes were detected using biotin labeled plasmid pBmR 161 and avidin-Texas Red and the Sericin 2 gene was detected using digoxigenin labeled plasmid 2002 and anti-digoxigenin-fluorescein. The position of the Sericin 1 gene was identified using the ribosomal DNA genes as a chromosomal landmark. Sericin 1 was detected using digoxigenin labeled bacterial artificial chromosome 9HJD and anti-digoxigenin-fluorescein. The chromosomal spreads were counterstained with diamindino-phenyl-indole (DAPI). The signals from the sericin …

Decomposition Of Protein Tryptophan Fluorescence Spectra Into Log-Normal Components. Ii. The Statistical Proof Of Discreteness Oftryptophan Classes In Proteins, Yana K. Reshetnyak, Edward A. Burstein

Physics Faculty Publications

The physical causes for wide variation of Stokes shift values in emission spectra of tryptophan fluorophores in proteins have been proposed in the model of discrete states (Burstein, E. A., N. S. Vedenkina, and M. N. Ivkova. 1973. Photochem. Photobiol. 18:263–279; Burstein, E. A. 1977a. Intrinsic Protein Luminescence (The Nature and Application). In Advances in Science and Technology (Itogi Nauki i Tekhniki), Biophysics Vol. 7. VINITI, Moscow [In Russian]; Burstein, E. A. 1983. Molecular Biology (Moscow) 17:455–467 [In Russian; English translation]). It was assumed that the existence of the five most probable spectral classes of emitting tryptophan residues and differences …

Hepp News, Vol. 4 No. 5, Hiv & Hepatitis Education Prison Project

Infectious Diseases in Corrections Report (IDCR)

No abstract provided.

Hybridization Diversity Of The Chorion Multigene Families Of Bombyx Mandarina With Reference To Several Genetic Stocks Of Bombyx Mori, Bungo Sakaguchi, Marian R. Goldsmith, Nikolaus A. Spoerel, Yumiko Nakajimai, Yutaka Kawaguchi, Katsumi Koga

Biological Sciences Faculty Publications

Genomic Southern blotting analyses of Bombyx mori and B. mandarina were performed with the 5′-exons or 5′-flanking sequences of two members of genes A/B.L11 and A/B.L12. They represent multigene families encoding chorion proteins that are expressed in the middle period of choriogenesis. Many bands cross-hybridized with the probes in B. mandarina and in different strains and races of B. mori, supporting the idea that the middle chorion multigene families have remained essentially the same in the two species. Both the exon and the 5′-flanking probes exhibited similar patterns within the European stocks of B. mori, indicating that the examined …

Remote Sensing Of Bio-Optical Water Types, Phytoplankton Seasonality, And Algal Pigments In Ocean Margin Waters, Paula Susan Bontempi

Open Access Dissertations

A frontal edge detection algorithm was applied to remotely sensed ocean color satellite data to identify incorrect retrievals of phytoplankton chl a concentrations, and refine estimates of primary producer abundance in bio-optically complex ocean margin waters. Improvement of the remotely sensed biological signal will facilitate establishment of more accurate daily to decadal phytoplankton spatial patterns in these waters, and enable prediction of phytoplankton blooms or features from space. Spatial patterns of chlorophyll a (chl a) and water-leaving radiance (Lwn) from 1998 SeaWiFS (Sea-Viewing Wide Field-of-View Sensor) images were examined from ocean margin waters off the southeastern continental United States (SEC). …

Remote Sensing Observations Of Winter Phytoplankton Blooms Southwest Of The Luzon Strait In The South China Sea, Dan-Ling Tang, I-Hsun Ni, Dana R. Kester, Frank E. Müller-Karger

Graduate School of Oceanography Faculty Publications

The Luzon Strait is a channel between the Philippine Sea and the South China Sea. This area is traditionally classified as an oligotrophic zone with low primary productivity. Even so, high concentrations of pigment were detected 100 km southwest of the Strait through analysis of historical Coastal Zone Color Scanner (CZCS) data that the Nimbus-7 satellite collected during the winters of 1979 to 1986. These blooms were observed in December 1979, February 1983, February 1985, and January 1986, when sea surface temperatures measured with the National Oceanic and Atmospheric Administration's (NOAAs) Advanced Very High Resolution Radiometer (AVHRR) were 23 to …

Management Of The Omani Abalone Haliotis Mariae: An Integrated Policy, Kadhim M. Al-Bahrani

Marine Affairs Theses and Major Papers

The Sultanate of Oman is a small coastal nation with a maritime history, regional trade and fisheries exploitation. Among those fishery industries is Oman's coastal abalone fishery, which command the highest prices per unit of weight among the other marine living resources. This study analyzes the fishery's biological aspects, structure, socioeconomic, policies, and management practices in an attempt to provide an understanding of the prime parameters, that in turn could be utilized for sound management purposes. it also provides a description of an integrated development and management policy for the abalone fishery. Finally, it is hoped that this research will …

A General And Facile Synthesis Of Beta-And Gamma-Hydroxyphosphonates From Epoxides: Application In Phospholipid Synthesis, Zhengong Li

Open Access Dissertations

No abstract provided.

Rewriting The Body Politic: The Art Of Illness And The Production Of Desire In The Diaries And Journals Of Alice James And Achsa Sprague, Susan Grant

Open Access Master's Theses

The term "invalid," in its usage as a label for women who occupy the space of the "sick" bed, functions to reify socio-political apparatuses which inscribe pain onto the female body, diminish the value of the feminine, and reproduce oppression vis-a-vis gender. This thesis critiques languages and ideologies used by doctors and editors/ critics, as well as those used by nineteenth-century diarists Alice James and Achsa Sprague. This project examines the plurality of voices reflecting and projecting discourses that are now in conflict, now at plateau. Specifically, this thesis studies strategies used by James and Sprague to reclaim voice through …

Development Of Chromatographic Methods And Analysis Of Metal Ions In Environmental And Biological System, Zhen Yi

Open Access Dissertations

No abstract provided.

The Gulf Of California As A Large Marine Ecosystem, Patricia A. Morrissey

Marine Affairs Theses and Major Papers

Large marine regions characterized by unique bathymetry, hydrography and productivity, within which marine populations have adapted reproductive, growth, and feeding strategies constitute large marine ecosystems (LME) (Sherman and Alexander, 1986). The Gulf of California a semi-enclosed sea off the western coast of Mexico qualifies as a LME as it presents physical and biological characteristics not found in the adjoining Pacific. This area sustains the largest commercial fishery in the country which is the sardine fishery. the sardine population resident in the Gulf of California has coupled its reproductive and migration strategies to the environment of this region. Fluctuations of the …

Optimization Strategies For Reverse-Phase Liquid Chromatographic Separations Of Deoxyribonucleotides, Deoxyribonucleosides, And Dideoxyribonucleosides, Nan-In Jang

Open Access Dissertations

No abstract provided.

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

Open Access Dissertations

No abstract provided.

Foraging Behavior Of American White Pelicans Pelecanus Erythrorhyncos In Western Nevada, John Guy Thomas Anderson

Open Access Dissertations

No abstract provided.

Purification And Characterization Of A New Class Of Dna Topoisomerase From Pearl Millet Mitochondria, Yong Pyo Lim

Open Access Dissertations

No abstract provided.

Foraging Behavior Of American White Pelicans Pelecanus Erythrorhyncos, John Guy Thomas Anderson

Open Access Dissertations

Foraging behavior by American White Pelicans (Pelecanus erythrorhyncos was studied in the Lahontan Basin in western Nevada. Pelicans engaged in cooperative fish herding and in kleptoparasitism upon Double Crested cormorants (Phalacrocorax auritus). Pelicans in groups of size 2 through 6 caught more fish than single birds. Mean strike number increased initially with increasing flock size but leveled off at a flock size of between 3 and 4. strike efficiency (captures/bird/strike) declined with flock size, reaching an asymptote at a flock size of 4. Analysis of the regurgitate of young birds revealed that the pelicans' primary food source …

Population Dynamics Of The American Lobster (Homarus Americanus) (Stock Assessment, Yield Model, Time Series Analysis, Production), Michael J. Fogarty

Open Access Dissertations

No abstract provided.