749 research outputs found

    UA94/6/2/2 Edgar Stansbury - Stansbury Pays Tribute to Terry

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    Article written by Edgar Stansbury for the Park City Daily News regarding his friend William Terry, includes a brief bibliography

    Freedom and Excellence

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    Commencement address given by Terry Wickham, President of Heidelberg College, to the Winter 1959 graduating class of The Ohio State University, St. John Arena, Columbus, Ohio, March 19, 1959

    The Conductance of Some Non-Rigid Bolaform Electrolytes

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    Bolaform electrolytes are those which contain two or more charges separated by an inert framework. These are intermediate in structure between simple electrolytes and polyelectrolytes. Since these are similar to both synthetic and biological electrolytes, this investigation has been undertaken to determine some of their properties in solution. The sodium and magnesium salts of ethane, propane, butane, pentane, hexane and decane α,ω-disulfonates were prepared. Each acid was prepared by refluxing the α,ω-dibromide of the desired salt with sodium sulfite. The sodium and magnesium salts were prepared by ion-exchange techniques. The conductance of each salt was determined in methanol utilizing the weight dilution method. A data treatment method for unsymmetrical 1-2 electrolytes was tested. The Murphy-Cohen equation: ∧ = ∧° - S√C + E′ClnC + J′C was found to be invalid in the concentration range studied, 1.0 - 5.0 x 10-4moles/liter. The Onsager limiting law when applied to the sodium salt data gave ∧° values from approximately 108 (ohm-1cm2equiv-1) for the ethane salt to 100 (ohm-1cm2equiv-1) for the decane. Phoreograms showed these salts to be unassociated in methanol. The magnesium salts deviated substantially below the limiting law plot and consequently were considered highly associated. The ∧° values for the magnesium salts were calculated from Kohlrausch\u27s law, ∧° = λ+Mg + λ-anion. By fixing this value, association constants were found to be in a range of 108,950 for the ethane salt to 25,260 for the decane salt. These values show a monotonic decrease as the chain length of the salt increases. This is explained by charge separation considerations. As the chain length increases the charge density on the molecule decreases, illustrating a decrease in ion-ion interactions. The frictional coefficients of the sodium salts were determined from λ- data. These showed values of .0496 X 10-7 g/sec for the ethane salt to .0563 X 10-7 g/sec for decane salts. The Peterlin rod and bead model for the determination of frictional forces was successfully applied to the data. The Perrin rigid ellipsoid model did not show any agreement when experimental and theoretical frictional coefficient values were compared

    Iron vs. gold : a study of the three Anglo-Dutch wars, 1652-1674

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    The purpose of this paper is to show that, as the result of twenty-two years of intermittent warfare between England and the Netherlands, the English navy became established as the primary naval power of Europe. Also, I intend to illustrate that, as a by-product of this naval warfare, Dutch trade was seriously hurt, with the·major benefactors of this Dutch loss of trade being the English. This paper grew out of a seminar paper on the first Anglo-Dutch war for a Tudor and Stuart English History graduate seminar class taught in the fall of 1966 by Dr. John R. Rilling of the University or Richmond. Because in the present paper I attempt to cover such a large topic, all other aspects of English history of this period will be covered only insofar as they affected the Dutch wars

    Agronomic and allelopathic effects of sequential cropping and tillage on tobacco and vegetable production

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    Production of vegetables and tobacco (Nicotiana tabacum L.) have traditionally been through monocrop, conventionally tilled systems. With the increasing importance of low input practices and conservation, and the declining number of producers, there is a need to develop reduced tillage systems and sequential cropping. This need prompted an investigation into the effects of reduced tillage and sequential cropping of tobacco, tomato (Lycopersicon esculentum Mill.) and broccoli (Brassica oleracea var. Italica L.) production systems. Three tillage systems (no-till, conventional till with a winter cover, and conventional till with no winter cover) and three cropping sequences (spring broccoli followed by tobacco or tomato; spring broccoli followed by tobacco or tomato, followed by fall broccoli; and tobacco or tomato followed by fall broccoli) were used in 1989 and 1990 at three locations in eastern Tennessee. Tobacco and tomato systems were evaluated separately. Also, since broccoli yields were suppressed by reduced tillage, field, greenhouse, and laboratory investigations were initiated to assess the possible allelopathic influences of wheat cover crops on the growth of tobacco, tomato, and broccoli. Field soil samples were evaluated for presence of five organic acids which are known to be allelochemicals produced from decaying wheat residue. Ferulic, p-hydroxybenzoic, p-coumaric, syringic and vanillic acids were applied to these crops individually at various concentrations. Methods of extraction and determination of concentrations of these acids from soils through high performance liquid chromatography were developed. Field samples were then evaluated for quantities of these acids. Broccoli yield and quality were reduced by minimum tillage but were not affected by cropping sequence. Tobacco was also adversely affected by reduced tillage. Tomato yield, however, was not affected by tillage, but fewer cull fruit occurred in no-till. Earlier planted tomatoes had somewhat higher yields and quality than those in later planted sequences. Allelochemicals had negligible effects on tomato and tobacco growth but retarded broccoli growth and dry weight accumulation. Greater concentrations of ferulic and p-coumaric acids were found in soils from no-till plots than from conventional till plots. Methods of extraction and analysis of organic acids were successfully developed and described in detail

    Mapping and Analysis: New Hampshires Proposed U.S. House Districts Gerrymandering in the Granite State, Visualized

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    Last month, New Hampshire's Special House Committee on Redistricting released HB52, a bill proposing new Congressional district lines that substantively depart from the map that currently governs the selection of the state's US House delegation. In its current form, HB52 would cleave the current map into two non-competitive districts – a prospective District 1 highly favorable to Republican candidates and a District 2 heavily concentrated with Democratic voters.Elementary and straightforward calculations from publicly available 2020 Census population data and 2020 Presidential returns at the ward level show that the Majority's plan addresses the need for minor population reapportionment with a significant reshaping of New Hampshire's electoral map.Straightforward analysis indicates HB52 is consistent with a canonical "pack-and-crack" gerrymandering technique, wherein one district – ostensibly New Hampshire's District 2 in this case – is sacrificed, "packed" with the opponent's voters, with the aim of increasing the gerrymanderer's prospects in the other district – as is ostensibly the case with New Hampshire's prospective First District

    The Ouachita Circle Spring 1994

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    Remembering Ouachita: Jim and Margaret Ann Pleitz remember their days at Ouachita and their years of ministry from Doddridge, Arkansas, to Dallas, Texas Dr. Raouf Halaby: Attends signing of Mutual Recognition Treaty In Memory of Dr. Bob Riley On Campus: New residence hall for men; Ouachita leads in number of students from missionary families; Christian Focus Week Activities Grants & Scholarships: Minority scholarships to honor Reverend A. William Terry; Yates Scholarship; OSF reaches prospective students, current students & alumni; Student receives state grant to study mercury in Arkansas\u27 rivers & streams Faculty & Staff: Awarded grants for professional growth plan, Campus Briefs The Financial Adviser, Spring 1994 Memorial Contributions Class Notes Sportshttps://scholarlycommons.obu.edu/alumni_mag/1037/thumbnail.jp

    Predation and antipredator tactics of nesting black brant and lesser snow geese

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    Coloniality and nest defence were examined in black brant Branta bernicla nigricans and lesser snow geese Chen caerulescens caerulescens. Increased nest density had no effect on nest survival, egg survival, or likelihood of partial clutch predation in snow geese. In brant, nest survival declined as nest density increased in 1992 and with increased distance from shore in 1993. Brant with conspecific nearest neighbours were less likely to suffer partial clutch predation in 1993, but not in 1992. Egg survival in brant increased with nest density in 1993, but decreased as density increased in 1992, however, the decrease occurred only in nests with three or four eggs. Nesting at high densities, in central positions, or far from shorelines commonly travelled by glaucous gulls Larurs hyperboreus and parasitic jaegers Stercorarius parasiticus, the primary egg predators in this study, did not provide geese with a nest or egg survival advantage because effects were lacking in snow geese and were inconsistent and contradictory in brant. Female snow geese had very high nest attendance and both sexes had high territory attendance so snow goose nests were rarely unattended during incubation. Brant had lower nest attendance than snow geese, and due to a lack food near their nests, brant left their territories to feed resulting in lower territory attendance as well. Although male brant were capable of defending the nest from avian predators and usually remained on their territories when females were absent, males were less effective defenders than incubating females. Increased vigilance and decreased resting by female brant as incubation progressed provided support for the prediction, from parental investment theory, that nest guarding effort would increase with offspring age, but there were no changes in male brant or in snow geese. However, declining nest and territory attendance by female brant and males of both species contradicted predictions from parental investment theory but were consistent with an increased need to forage as nutrient reserves declined through incubation as expected due to energetic constraints

    A numerical study of laminar flow heat transfer in curved tubes 

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    CEEAA Congratulations Graduates

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