Digital Commons Network^™

Saving Salvage: Avoiding Misguided Changes To Salvage And Finds Law, Christopher Z. Bordelon

San Diego International Law Journal

In recent years, as technology permitting previously impossible underwater salvage operations has become available, ancient principles of the laws of salvage and of finds as applied to sunken ships have come under attack. Those who would limit or preclude the application of salvage and finds principles and the conduct of salvage operations in the context of shipwrecks have advocated changes in both the common law of admiralty and in related statutory law. They have also supported an international convention on the subject. Academic commentary favoring heightened preservation praises these developments and promotes further initiatives to protect the "underwater cultural heritage" …

Insider Express, Houston Academy Of Medicine-Texas Medical Center Library

Insider Express (2003-2013)

No abstract provided.

In Vitro And In Vivo Two-Photon Luminescence Imaging Of Single Gold Nanorods, Haifeng Weng, Terry B. Huff, Daniel A. Zweifel, Wei He, Philip S. Low, Alexander Wei, Ji-Xin Cheng

Other Nanotechnology Publications

Gold nanorods excited at 830 nm on a far-field laser-scanning microscope produced strong two-photon luminescence (TPL) intensities, with a cos(4) dependence on the incident polarization. The TPL excitation spectrum can be superimposed onto the longitudinal plasmon band, indicating a plasmon-enhanced two-photon absorption cross section. The TPL signal from a single nanorod is 58 times that of the two-photon fluorescence signal from a single rhodamine molecule. The application of gold nanorods as TPL imaging agents is demonstrated by in vivo imaging of single nanorods flowing in mouse ear blood vessels.

Querying Microarray Databases, Zoe Alexandra Raja

Computer Science and Engineering Theses - Archive

Microarray technology has rapidly taken a key position among bioinformatics research tools. After the completion of the Human Genome Project, microarray databases have become particularly important to the management and analysis of genomic data. These databases are ideal tools for many research areas involving gene expression patterns under different experimental conditions. This work attempts to assess the querying capabilities of current public microarray database implementations by evaluating their data management, query interfaces, and results presentation. We are not aware of any comparative study available to date that evaluates this important class of biological databases. We examine and evaluate how several …

Application Of Graph-Based Data Mining To Biological Networks, Chang Hun You

Computer Science and Engineering Theses - Archive

A huge amount of biological data has been generated by long-term research. It is time to start to focus on a system-level understanding of bio-systems. Biological networks are networks of biochemical reactions, containing various objects and their relationships. Understanding of biological networks is a starting point of systems biology. Multi-relational data mining finds the relational patterns in both the entity attributes and relations in the data. A widely used representation for relational data is a graph consisting of vertices and edges between these vertices. Graph-based data mining, as one approach of multi-relational data mining, finds relational patterns in a graph …

Supramolecular Nanostructures Based On Calixarenes, Heng Xu

Chemistry & Biochemistry Dissertations - Archive

This dissertation describes a systematic approach towards the design, synthesis, characterization, and application of calixarene-based supramolecular nanostructures. Chapter 1 briefly overviews the field of supramolecular chemistry and highlights its horizons. Chapter 2 introduces a modular strategy towards synthesis of nanoscale receptor macromolecules--calix-peptide conjugates. This strategy combines the unique host-guest capabilities of calixarene chemistry with synthetically flexible peptide synthesis. A series of calixarene amino acids was prepared and further utilized to synthesize calixarene dipeptides. Through this approach, calixarene amino acids are now available to be incorporated into peptide networks and nanostructured biologically relevant materials. Chapter 3 demonstrates supramolecular applications of calixarene-peptide …

The Incidence And Management Of Footrot In Dairy Cattle In Monteverde, Costa Rica, November 2005, Allison Brown

Monteverde Institute: Tropical Ecology and Conservation

This study investigates the frequency of, and factors leading to or preventing, footrot in diary cattle in the Monteverde area of Costa Rica. Owners of 23 farms were interviewed about their property characteristics, management practices, and incidence of footrot. Then the farms were visually inspected. Ten farms were found to currently have infected cattle and 18 had infected cattle this year. The percent of currently infected cattle had a significant positive correlation with both herd size and hours spent in daily milking rotation. Larger herds showed a greater incidence of infection. The combined presence of rocks and mud in the …

Endosperm Loss, Seed Germination, And Early Seedling Growth In Large-Seeded Tropical Trees, November 2005, Audrey L. Quinn

Monteverde Institute: Tropical Ecology and Conservation

Endosperm damage was studied in Monteverde, Costa Rica to determine its frequency, extent, and effect on seed germination and early seedling growth. Endosperm damage was found to occur in 72% of seeds from Chione sylvicola (Rubiaceae) and 94% of seeds from Quercus costaricensis (Fagaceae). The extent of endosperm damage in Q. costaricensis was not related to the root and shoot weight of germinated seeds. Experimental endosperm removal was carried out in Persea americana and Cinnamomum paratriplinerve (both Lauraceae) seeds. The three week time period of the study was inadequate to yield significant C. paratriplinerve germination, but seeds with intact endosperm …

Effects Of Trail Traffic On Egg-Predation By Mammal Populations In The Monteverde Cloud Forest Preserve, November 2005, Karmen Scott

Monteverde Institute: Tropical Ecology and Conservation

The effects of human traffic within trails on egg predation and predatory mammal compositions between heavily trafficked trails and secluded trails were studied at the Monteverde Cloud Forest Preserve. This study was able to find differences in egg-predatory mammal compositions between these two trail types by looking at teeth impressions in eggs made of plasticine. The main predator was found to be Nasura narica (common coati) who was involved in the majority of the egg predation events and the vast majority of the nests preyed upon were on the highly trafficked trail. There were only a few predation events from …

A Lesson Plan On Fungi Diversity For The Centro De Educación Creativa, November 2005, Rachel Deliz

Monteverde Institute: Tropical Ecology and Conservation

Fungi are integral components of a forest environment, but they are often overlooked in elementary education, despite their crucial role in nutrient cycles. Concepts pertaining to fungi diversity were researched and compiled to be part of the 5th grade curriculum of Centro de Educación Creativa. The result of this project was three PowerPoint presentations, each coupled with 2-3 visual aids, experiments and/or activities. I expect these presentations to aid in the environmental education curriculum at the C.E.C and to promote an appreciation of the Kingdom Fungi.

The Role Of Primary Forest On Tropical Avian Communities In A Mixed Agricultural Landscape, November 2005, Matt Warner

Monteverde Institute: Tropical Ecology and Conservation

The conversion of tropical forest to agricultural systems is both widespread and increasing. As a result, much of tropical biodiversity may depend on altered landscapes for their long-term survival. The purpose of this study was to compare the avifauna of dairy cattle pastures and forested coffee plantations to assess their capacity to maintain avian biodiversity in San Luis, Costa Rica. Bird assemblages were examined for three sites of each landscape type along a distance gradient (100m, 250m, and 500m) from primary forest. Bird diversity decreased significantly with distance from forest in both landscapes (between 100m and 250m; pasture: t = …

Truncated Profile Hidden Markov Models, Jennifer A. Smith

Electrical and Computer Engineering Faculty Publications and Presentations

The profile hidden Markov model (HMM) is a powerful method for remote homolog database search. However, evaluating the score of each database sequence against a profile HMM is computationally demanding. The computation time required for score evaluation is proportional to the number of states in the profile HMM. This paper examines whether the number of states can be truncated without reducing the ability of the HMM to find proteins containing members of a protein domain family. A genetic algorithm (GA) is presented which finds a good truncation of the HMM states. The results of using truncation on searches of the …

Production Techniques For Crimson Seedless Table Grapes In Western Australia, Ian Cameron

Viticulture published reports

Crimson Seedless is a late season, red seedless table grape developed by D. Ramming and R. Tarailo in Fresno California for the United States Department of Agriculture. It was bred in 1979 when a white, late ripening seedless hybrid variety was crossed with Red Emperor (see Figure 1). The seedling, which became Crimson Seedless, was selected in 1983 but not released to industry in California until 1989.

Production techniques for Crimson Seedless were largely unknown when the variety was released to industry in Western Australia in 1996. Specific management techniques suitable for Californian conditions had been described by various authors. …

Changing Perceptions Of Knowledge : Evaluation Of An Innovative Program For Pre-Service Secondary Teachers., Neil Hooley, Rod Moore

Australian Journal of Teacher Education

Pre-service programs for secondary teachers have traditionally involved method subjects, where participants are inducted into the curriculum practices of two disciplinary or subject areas. In 2003, Victoria University of Technology, Melbourne, enrolled a small group of fourteen pre-service teachers into an innovative Graduate Diploma of Secondary Education that directly challenged these program assumptions. Method subjects were collapsed into an integrated study of the theory, skills and practices of classroom work and connections were drawn between all enrolled subjects or knowledge. Another key feature of the program involved all pre-service teachers being placed at the one school for their partnership experience, …

Proceedings Of The 2005 National Cave And Karst Management Symposia National Cave & Karst Management Symposia Nckms, Steve Stokowski, G. Thomas Rea

KIP Talks and Conferences

17th National Cave and Karst Management Symposium, October 31 - November 4, 2005, Albany, New York.Contents: Macro-Invertebrate Survey of Timpanogos Cave / Jon Jasper - Dr Riley Nelson -- Cave Resource Inventories: Why are they Important? / Johanna Kovarik - Pat Kambesis -- Cave Faunal Study for the Interstate 66 E.I.S (Somerset to London, Kentucky) / Julian J. Lewis - Salisa L. Lewis -- Hawaiian Cave Biology: Status of Conservation and Management / Fred D. Stone - Francis G. Howarth -- Microbial Speleology: Opportunities and Challenges / Diana E. Northup - Penelope J. Boston -- Critical Issues in Cave Biology …

Writing A Commodity Marketing Plan, Matthew Diersen, Alan May

SDSU Extension Fact Sheets

No abstract provided.

Multiple Bromodomain Genes Are Involved In Restricting The Spread Of Heterochromatic Silencing At The Saccharomyces Cerevisiae Hmr-Trna Boundary, Nithya Jambunathan, Adam W. Martinez, Elizabeth C. Robert, Nneamaka B. Agochukwu, Megan E. Ibos, Sandra L. Dugas, David Donze

Faculty Publications

The transfer RNA gene downstream from the HMR locus in S. cerevisiae functions as part of a boundary (barrier) element that restricts the spread of heterochromatic gene silencing into the downstream region of chromosome III. A genetic screen for identifying additional genes that, when mutated, allow inappropriate spreading of silencing from HMR through the tRNA gene was performed. YTA7, a gene containing bromodomain and ATPase homologies, was identified multiple times. Previously, others had shown that the bromodomain protein Bdf1p functions to restrict silencing at yeast euchromatin- heterochromatin boundaries; therefore we deleted nonessential bromodomain-containing genes to test their effects on heterochromatin …

An Evaluation Of The Oregon Department Of Transportation’S (Odot) Environmental Streamlining Efforts: A Focus On Cetas, Connie P. Ozawa, Jennifer Dill

Urban Studies and Planning Faculty Publications and Presentations

The Oregon Department of Transportation responded to the federal call in the late 1990s to streamline the National Environmental Policy Act (NEPA) by (1) implementing organizational and procedural changes internal to the agency, (2) funding ODOT-dedicated staff positions in state and federal resource agencies, and (3) convening regular meetings with state and federal agencies with NEPA-related regulatory responsibilities. This latter effort evolved into the CETAS (Collaborative Environmental and Transportation Agreement for Streamlining) process that includes a management and a technical team element. This document reports an assessment of the effectiveness of these efforts. Phase I of the study was designed …

Rhamnolipids Modulate Swarming Motility Patterns Of Pseudomonas Aeruginosa, Nicky C. Caiazza, Robert M. Q. Shanks, G. A. O'Toole

Dartmouth Scholarship

Pseudomonas aeruginosa is capable of twitching, swimming, and swarming motility. The latter form of translocation occurs on semisolid surfaces, requires functional flagella and biosurfactant production, and results in complex motility patterns. From the point of inoculation, bacteria migrate as defined groups, referred to as tendrils, moving in a coordinated manner capable of sensing and responding to other groups of cells. We were able to show that P. aeruginosa produces extracellular factors capable of modulating tendril movement, and genetic analysis revealed that modulation of these movements was dependent on rhamnolipid biosynthesis. An rhlB mutant (deficient in mono- and dirhamnolipid production) and …

The Case For Selection At Ccr5-Δ32, Pardis C. Sabeti, Emily Walsh, Steve F. Schaffner, Patrick Varilly, Ben Fry, Holli B. Hutcheson, Mike Cullen, Tarjei S. Mikkelsen, Jessica Roy, Nick Patterson, Richard Cooper, David Reich, David Altshuler, Stephen O'Brien, Eric S. Lander

Faculty Publications

The C-C chemokine receptor 5, 32 base-pair deletion (CCR5-Δ32) allele confers strong resistance to infection by the AIDS virus HIV. Previous studies have suggested that CCR5-Δ32 arose within the past 1,000 y and rose to its present high frequency (5%-14%) in Europe as a result of strong positive selection, perhaps by such selective agents as the bubonic plague or smallpox during the Middle Ages. This hypothesis was based on several lines of evidence, including the absence of the allele outside of Europe and long-range linkage disequilibrium at the locus. We reevaluated this evidence with the benefit of much denser genetic …

Successful Island Reintroductions Of New Zealand Robins And Saddlebacks With Small Numbers Of Founders, Sabrina S. Taylor, Ian G. Jamieson, Doug P. Armstrong

Faculty Publications

Populations established with a small number of founders are thought to have a high risk of extinction due to Allee effects, demographic stochasticity, inbreeding and reduced genetic variation. We tested whether the initial number of birds released was related to persistence in reintroductions of saddlebacks (Philesturnus carunculatus) and robins (Petroica australis) to New Zealand offshore islands. Data were analysed for 31 populations that had been observed for at least 3 years since reintroductions. The numbers released ranged from 5-188. Most of the populations (26) survived and grew, including five from less than 15 founders, and four out of the five …

Bioassay-Guided Fractionation Of Rubus Suavissimus Leaf Extracts Possessing Nf-Κb Inhibitory Activities And A Separable Cytotoxicity, Dong Liu, Zhanguo Gao, Jian Zhang, Jianping Ye, Zhijun Liu

Faculty Publications

Leaf extract of Rubus suavissimus S. Lee (Rosaceae), a perennial woody shrub indigenous to southern China, was tested for its biological activity in the regulation of transcription factor NF-κB (nuclear factor kappa B) A NF-κB luciferase reporter cell line was used in this study. The crude extract inhibited NF-κB at 100-1000 μg/ml concentrations with minor cytotoxicity. This finding prompted two more rounds of fractionation toward separating the active fraction from the cytotoxic fraction. Five fractions were obtained in the first round of fractionation, of which RUS-C20 was found to be the most potent in inhibiting NF-κB without signs of cytotoxicity …

The Role Of Cuticular Pheromones In Courtship Conditioning Of Drosophila Males, Kathleen King Siwicki, Paul Nicholas Riccio , '05, Lisa Ladewski , '02, F. Marcillac, L. Dartevelle, Stephanie Alexis Cross , '04, J.-F. Ferveur

Biology Faculty Works

Courtship conditioning is an associative learning paradigm in Drosophila melanogaster, wherein male courtship behavior is modified by experience with unreceptive, previously mated females. While the training experience with mated females involves multiple sensory and behavioral interactions, we hypothesized that female cuticular hydrocarbons function as a specific chemosensory conditioned stimulus in this learning paradigm. The effects of training with mated females were determined in courtship tests with either wild-type virgin females as courtship targets, or with target flies of different genotypes that express distinct Cuticular hydrocarbon (CH) profiles. Results of tests with female targets that lacked the normal CH profile, and …

‘Starving Children In Africa’: Who Cares?, Lisa Cassidy

Journal of International Women's Studies

The current state of global poverty presents citizens in the Global North with a moral crisis: Do we care? In this essay, I examine two competing moral accounts of why those in the North should or should not give care (in the form of charity) to impoverished peoples in the Global South. Nineteen years ago feminist philosopher Nel Noddings wrote in Caring that “we are not obliged to care for starving children in Africa” (1986, p. 86). Noddings’s work belongs to the arena of care ethics – the feminist philosophical view that morality is about responding to, caring for, and …

Invertebrate & Leaf Litter Dynamics In The Depauw University Nature Park And Arboretum, Karl Koehler, Libby Sue Allard, Kyra Dawn Reed

Annual Student Research Poster Session

Our study focuses on the interaction between invertebrate abundance and the decomposition of leaf litter. The decomposition of leaf litter plays a major role in the nutrient cycling process, which is critical to the health of an ecosystem (Spurr and Barnes 1980). The dynamics between invertebrates and leaf litter are of particular importance because invertebrates are good indicators of the activity of the decomposer community. Abiotic factors such as soil pH and temperature are also important influences on decomposition rates (Bornebusch 1930; Petersen & Luxton 1982; Seastedt 1984). Our goal was to determine the nature of this interaction. Ultimately, this …

Invertebrate And Leaf Litter Dynamics In The Depauw Nature Park, Karl Koehler, Vanessa Artman

Student Research

Our study focuses on the interaction between invertebrate abundance and the decomposition of leaf litter. The decomposition of leaf litter plays a major role in the nutrient cycling process, which is critical to the health of an ecosystem (Spurr and Barnes 1980). The dynamics between invertebrates and leaf litter are of particular importance because invertebrates are good indicators of the activity of the decomposer community. Abiotic factors such as soil pH and temperature are also important influences on decomposition rates (Petersen and Luxton 1982, Seastedt 1984). Our goal was to determine the nature of this interaction. Ultimately, this information could …

From Victimhood To Agency: A Constructionist Comparison Of Sexual Orientation To Religious Orientation, Carmen M. Butler

Seattle Journal for Social Justice

No abstract provided.

Student Employee Recruitment And Retention Through Campus Partnerships, Corinne M. Daprano, Megan L. Coyle, Peter J. Titlebaum

Health and Sport Science Faculty Publications

Recruitment and retention of student employees are important considerations for any recreational sports department, large or small, because student employees impact both the quantity and quality of programs and services. This article proposes a strategy for establishing partnerships with academic departments to aid in the recruitment and retention of student employees. These partnerships benefit students, the recreational sports department, academic departments, and university student retention efforts. Following a description of this strategy is an example of a partnership that has been successfully established at one Midwestern university.

A Bayesian Subset Analysis Of Sensory Evaluation Data, Balgobin Nandram

Journal of Modern Applied Statistical Methods

In social sciences it is easy to carry out sensory experiments using say a J-point hedonic scale. One major problem with the J-point hedonic scale is that a conversion from the category scales to numeric scores might not be sensible because the panelists generally view increments on the hedonic scale as psychologically unequal. In the current problem several products are rated by a set of panelists on the J-point hedonic scale. One objective is to select the best subset of products and to assess the quality of the products by estimating the mean and standard deviation response …

Growth, Fecundity, And Diets Of Newly Established Silver Carp In The Middle Mississippi River, Christopher J. Williamson, James E. Garvey

Publications

The silver carp Hypophthalmichthys molitrix has spread throughout the Mississippi River drainage. During 2003, we determined its population status and potential impact in the middle Mississippi River (MMR), the conduit between the lower Mississippi River and the upper Mississippi, Missouri, and Illinois rivers. We quantified growth, age structure, fecundity, and diets of silver carp sampled with trammel nets and AC electrofishing in main-channel areas. Mean length at age in the MMR exceeded that of populations in Asia by as much as 26%. Individuals were typically more than 1 year old and 230 mm total length, suggesting that small, young fish …