Sum list coloring, the sum choice number, and sc-greedy graphs

Let G=(V,E) be a graph and let f be a function that assigns list sizes to the vertices of G. It is said that G is f-choosable if for every assignment of lists of colors to the vertices of G for which the list sizes agree with f, there exists a proper coloring of G from the lists. The sum choice number is the minimum of the sum of list sizes for f over all choosable functions f for G. The sum choice number of a graph is always at most the sum |V|+|E|. When the sum choice number of G is equal to this upper bound, G is said to be sc-greedy. In this paper, we determine the sum choice number of all graphs on five vertices, show that trees of cycles are sc-greedy, and present some new general results about sum list coloring.Comment: 14 pages, 11 figure

An annotated checklist of Wisconsin sap and short-winged flower beetles (Coleoptera: Nitidulidae, Kateretidae)

A survey of Wisconsin Nitidulidae and Kateretidae yielded 78 species through analysis of literature records, museum and private collections, and three years of field research (2000-2002). Twenty-seven species (35% of the Wisconsin fauna) represent new state records, having never been previously recorded from the state. Wisconsin distribution, along with relevant collecting techniques and natural history information, are summarized. The Wisconsin nitidulid and kateretid faunae are compared to reconstructed and updated faunal lists for Illinois, Indiana, Michigan, Minnesota, Ohio, and south-central Canada. Literature and distributional records suggest at least 11 additional nitidulid species may occur in Wisconsin

Improving State Evaluation of Principal Preparation Programs

Intended for state officials involved in the assessment and approval of university and other programs to train future school principals, this report describes five design principles for effective program evaluation. "While states will undoubtedly want and need to develop systems unique to their context, they could benefit from having guideposts to organize what can be complex work," says the report, which was written jointly by representatives from New Leaders, which helps train school leaders and designs leadership policies and practices for school systems, and the University Council for Educational Administration, a consortium of universities that seeks to promote high-quality education leadership preparation and research. The principles, which emerged from a New Leaders/University Council project to develop a model evaluation system and accompanying of tools, are:Structure the review process in a way that is conducive to continuous program improvement.Create appropriate systems to hold programs accountable for effective practices and outcomes.Provide key stakeholders with accurate and useful information.Take a sophisticated and nuanced approach to data collection and use.Adhere to characteristics of high-quality program evaluation.The report also describes how two states, Illinois and Delaware, have approached evaluation, and provides a tool from its model-development work, an assessment that states can use to determine their degree of "readiness" for building a stronger system to evaluate principal preparation programs

Graeco-Egyptian Papyrology

This research examines a Graeco-Egyptian papyrus in the MU ethnographic collection. The research involved a personal visit to the University of Cincinnati where the manuscript was authenticated, restored, and translated by Dr. Peter Van Minnen. Dated to ca. the 5th Century of the early Byzantine Period, this papyrus originated in the Herakleopolite nome of Egypt, an area which was under the control of Constantinople. This capstone is an endeavor to provide a contextual background, both the economic and social characteristics of the community, as well as the political world at the time. The manuscript provides a list of names, the taxes paid, and in some cases, their profession. A glimpse into the life of a small community over 1,500 years ago. Following the curation and research of the papyrus, Marshall University is now able to display this unique artifact for the benefit of faculty and students and will be available for researchers worldwide

Clean Marine BC and Recreational Vessel Pollution Prevention

Recreational vessels can be a significant source of pollution in the marine environment; sewage, bilge, and greywater discharges, fuel and hydrocarbons leaks, and toxic paints and maintenance products can all contribute to damaging our shared oceans. Fortunately there are many positive solutions available. This presentation will speak to the challenges and opportunities in preventing and mitigating multiple sources of pollution from recreational boating and marinas in BC, with a focus on the Clean Marine BC (CMBC) program. CMBC is a voluntary eco-certification program which recognizing marinas, yacht clubs, harbour authorities and boatyards for their implementation of environmental best practices. Green boating education and outreach is a significant component of CMBC. The program is run by Georgia Strait Alliance (GSA), a solutions-oriented marine conservation organization.GSA is a member of the Pacific Oil Spill Prevention and Education Team (POSPET), a trans-boundary initiative spanning the waters from Alaska to California. Our work focuses on the Strait of Georgia region, the portion of the Salish Sea north of the Canada-U.S border

Spectroscopic Studies of Solid State Cyclodextrin Complexation Reactions With Various Guest Molecules.

The research presented in this dissertation involves spectroscopic studies of cyclodextrin complexation reactions with various guest molecules. Chapter 1 provides an introduction that forms the basis for the remaining chapters. The topics covered in the introduction include the structures and properties of cyclodextrins with a brief section specifically dedicated to solid cyclodextrin. In addition, the environmental applications of cyclodextrins are discussed. The last part of the introduction concerns the theory and applications of fluorescence spectroscopy. In Chapter 2, the extraction of volatile polycyclic aromatic hydrocarbons (PAHs) from air by use of solid cyclodextrin is presented. Naphthalene was chosen as the model compound due to its high vapor pressure. The effect of various alcohols on the gas-solid complexation reactions of PAHs as well as quantitative studies are also reported in this chapter. These studies with the solid cyclodextrin are compared to those examined in aqueous solutions. Chapter 3 pertains to the effect of cyclodextrins on excited state proton transfer reactions of carboxylic acid compounds. Several naphthoic and anthroic acids including 2-naphthoic acid, 1-hydroxy-2-naphthoic acid, 9-anthroic acid, and 2-anthroic acid are studied in order to propose mechanisms for these compounds in monomeric and polymeric cyclodextrins. The inner cavity diameters of the cyclodextrins play a major role in the proposed mechanisms. Chapter 4 reports the effect of the Cyclodextrin Host Isolation Matrix (CHIM) method on excited state proton transfer reactions. These studies involve solid samples of the compounds mentioned in Chapter 3 with the addition of 3-hydroxy-2-naphthoic acid. The CHIM method mimics the spectroscopy of isolated molecules. The results obtained from the solid samples are compared to those obtained from aqueous solutions reported in the previous chapter. Dual fluorescence is reported for the anthroic acids and an explanation for this phenomenon is given