Thomas D. Clark of Kentucky: An Uncommon Life in the Commonwealth

By the flip of a coin, Thomas Dionysius Clark became intertwined in the vast history of Kentucky. In 1928, Clark received scholarships to both the University of Cincinnati and to the University of Kentucky. Kentucky won the coin toss and the claim to one of the South\u27s eminent historians. In 1990, when the Kentucky General Assembly honored Clark by declaring him Kentucky’s Historian Laureate for life, Governor Brereton Jones described Clark as “Kentucky’s greatest treasure.” Historian, advocate, educator, preservationist, publisher, writer, mentor, friend, Kentuckian—Dr. Clark has filled all these roles and more. Thomas D. Clark of Kentucky is a celebration of his life and career by just a few of those who have felt his influence and shared his enthusiasm for his adopted home state of Kentucky. John E. Kleber, emeritus professor of history at Morehead State University, is the editor of The Kentucky Encyclopedia and The Encyclopedia of Louisville. Underscores how Clark remains a major force in every area of intellectual life in Kentucky through his role of state, local and regional historian; archival preservationist and publisher; agricultural, environmental and educational advocate; and friend and mentor to the people of the Commonwealth. —Bowling Green (KY) Daily News Through the reports of eighteen excellent writers from varied backgrounds, this book puts in perspective Clark’s life and contributions much better than would a conventional biography. —Indiana Magazine of History Succeeds in reminding us of Clark\u27s importance and his ubiquity in twentieth-century southern and Kentucky historiography. —Journal of Southern History A fitting way to note the historian’s 100th birthday. —Kentucky Living While many know of Clark as the state’s historian laureate and from his 32 books, these personal observations reveal what he has accomplished behind the scenes in areas such as the environment, archives and education. —Kentucky Monthly Clark is a genuine hero because he is mortal, pragmatic and inspired. With this book we salute him and his works. . . . The ultimate tribute is for present and future generations to read and then heed the insights of this remarkable Kentuckian. —Lexington Herald-Leader Marks Clark’s unsurpassed achievements as scholar, educator, preservationist, agrarian, advocate, and mentor. —Louisville Courier-Journal What a life! The chapters written here by colleagues, students, and friends recall a career of remarkable range and depth. —Register of the Kentucky Historical Society Celebrates the achievements of one of Kentucky’s most valued citizens. —Union County (KY) Advocatehttps://uknowledge.uky.edu/upk_united_states_history/1104/thumbnail.jp

Role of the intercalated disc in cardiac propagation and arrhythmogenesis

This review article discusses mechanisms underlying impulse propagation in cardiac muscle with specific emphasis on the role of the cardiac cell-to-cell junction, called the “intercalated disc.”The first part of this review deals with the role of gap junction channels, formed by connexin proteins, as a determinant of impulse propagation. It is shown that, depending on the underlying structure of the cellular network, decreasing the conductance of gap junction channels (so-called “electrical uncoupling”) may either only slow, or additionally stabilize propagation and reverse unidirectional propagation block to bidirectional propagation. This is because the safety factor for propagation increases with decreasing intercellular electrical conductance. The role of heterogeneous connexin expression, which may be present in disease states, is also discussed. The hypothesis that so-called ephaptic impulse transmission plays a role in heart and can substitute for electrical coupling has been revived recently. Whereas ephaptic transmission can be demonstrated in theoretical simulations, direct experimental evidence has not yet been presented. The second part of this review deals with the interaction of three protein complexes at the intercalated disc: (1) desmosomal and adherens junction proteins, (2) ion channel proteins, and (3) gap junction channels consisting of connexins. Recent work has revealed multiple interactions between these three protein complexes which occur, at least in part, at the level of protein trafficking. Such interactions are likely to play an important role in the pathogenesis of arrhythmogenic cardiomyopathy, and may reveal new therapeutic concepts and targets

On the Localized superluminal Solutions to the Maxwell Equations

In the first part of this article the various experimental sectors of physics in which Superluminal motions seem to appear are briefly mentioned, after a sketchy theoretical introduction. In particular, a panoramic view is presented of the experiments with evanescent waves (and/or tunneling photons), and with the "Localized superluminal Solutions" (SLS) to the wave equation, like the so-called X-shaped waves. In the second part of this paper we present a series of new SLSs to the Maxwell equations, suitable for arbitrary frequencies and arbitrary bandwidths: some of them being endowed with finite total energy. Among the others, we set forth an infinite family of generalizations of the classic X-shaped wave; and show how to deal with the case of a dispersive medium. Results of this kind may find application in other fields in which an essential role is played by a wave-equation (like acoustics, seismology, geophysics, gravitation, elementary particle physics, etc.). This e-print, in large part a review, was prepared for the special issue on "Nontraditional Forms of Light" of the IEEE JSTQE (2003); and a preliminary version of it appeared as Report NSF-ITP-02-93 (KITP, UCSB; 2002). Further material can be found in the recent e-prints arXiv:0708.1655v2 [physics.gen-ph] and arXiv:0708.1209v1 [physics.gen-ph]. The case of the very interesting (and more orthodox, in a sense) subluminal Localized Waves, solutions to the wave equations, will be dealt with in a coming paper. [Keywords: Wave equation; Wave propagation; Localized solutions to Maxwell equations; Superluminal waves; Bessel beams; Limited-dispersion beams; Electromagnetic wavelets; X-shaped waves; Finite-energy beams; Optics; Electromagnetism; Microwaves; Special relativity]Comment: LaTeX paper of 37 pages, with 20 Figures in jpg [to be processed by PDFlatex

The Public Papers of Governor Lawrence W. Wetherby, 1950-1955

This volume preserves the public papers and letters from the five-year period when Lawrence W. Wetherby was governor of the Commonwealth of Kentucky. Relatively little of this material has been available heretofore to the general public. And its inaccessibility may explain why the Wetherby administration has yet to be fully appreciated even by historians and political scientists. The years 1950 through 1955 offered problems and opportunities that made being governor both a challenge and a joy. It was a period of economic growth fostered by the artificial stimulus of the Korean War, and sudden economic readjustment when the war ended, that resulted in financial problems for Kentucky’s government. There was depression in the important coal industry that caused a mass exodus of people from eastern Kentucky. A brief drought impaired agricultural production. While President Harry Truman had been quite solicitous of the state’s needs, the new Republican administration in Washington was less so. Yet, of a positive nature, there was an influx of tourists, a concerted effort to diversify the state’s economic base through industrialization, and an attempt to mitigate a characteristic isolation both within and without through the construction of toll roads and rural highways. The papers in this volume reflect the thought of Kentucky’s executive branch on all of these issues. John E. Kleber is professor emeritus of history at Morehead State University. He has served as director of the Academic Honors Program (1973-1988) and interim dean of the Caudill College of Humanities (1993-1995). Kleber received both the Outstanding Teacher (1982) and Distinguished Researcher (1993) Awards from Morehead State. He was given the Outstanding Service Medal by the United States Army (1971), the Governor\u27s Outstanding Kentuckian Award (1992), and the Catholic Alumni Award by the Archdiocese of Louisville (2002). He is the editor of six books, including The Kentucky Encyclopedia, A Home for Children: A History of Brooklawn, and Thomas D. Clark of Kentucky: An Uncommon Life in the Commonwealth.https://uknowledge.uky.edu/upk_political_science_papers/1007/thumbnail.jp

Metadata-Based Integration of Qualitative and Quantitative Information Resources Approaching Knowledge Management

This paper presents a concept for the integration of quantitative and qualitative information sources with their accompanying management support functionalities from navigation and retrieval up to analysis and business intelligence. The integration is realized by a common keyword-based metadata base, retrievable and extendible by the end user on a web-based platform. This enables a dynamic acquisition of supplementary information on the usage, usability and benefit of basic and derived information objects, e.g. data warehouses, data marts, OLAP cubes, reports or (textual) documents. Being extended by functions to automatically catch contextual links during system usage, the concept is discussed as a contribution to the implementation of knowledge management. The concept is being developed and successfully tested in the practical environment of a reference project for the implementation of an IT-infrastructure to support decentralized decision-making at a German university

Temperature dependence of chemical and biophysical rate processes: Phenomenological approach to deviations from Arrhenius law

Arrhenius plots, which are used to represent the effects of temperature on the rates of chemical and biophysical processes and on various transport phenomena in materials science, may exhibit deviations from linearity. Account of curvature is provided here by a formula which involves a deformation of the exponential function, of the kind recently encountered in treatments of non-extensivity in statistical mechanics. We present here examples on diverse topics – respiration rates of plants, speed of gliding of bacteria, quantum mechanical tunneling in a chemical reaction – illustrating the variety of possible applications and the additional insight that can be gained

Four-path interference and uncertainty principle in photodetachment microscopy

We study the quantal motion of electrons emitted by a pointlike monochromatic isotropic source into parallel uniform electric and magnetic fields. The two-path interference pattern in the emerging electron wave due to the electric force is modified by the magnetic lens effect which periodically focuses the beam into narrow filaments along the symmetry axis. There, four classical paths interfere. With increasing electron energy, the current distribution changes from a quantum regime governed by the uncertainty principle, to an intricate spatial pattern that yields to a semiclassical analysis.Comment: submitted to Europhysics Letter

EFFECTS OF A REVERSE OSMOSIS-WATER TREATMENT PLANT BRINY CONCENTRATE DISCHARGED INTO AN OLIGOHALINE ESTUARY.

Reverse Osmosis Water Treatment Plants (RO-WTPs) create potable water and a briny concentrate that must be disposed; often it is discharged into nearby surface waters. Currently, there is no published research to examine effects of this discharge on the ambient environment or on resident and transient biota. One established RO-WTP discharge location was used as a model and compared with a control location within the same embayment and the locations of two RO-WTPs pre-construction. These two plants may discharge up to eight times more concentrate into the estuary. A one-year study used acoustic Doppler current profilers; Hydrolab sondes; a YSI meter; and biological and water collections to profile each location. Water movements at all locations were correlated with wind velocity measured at the USCG-EC weather station and the tide cycle at Mann's Harbor marina. Average velocity was lowest at the established RO-WTP and highest at the two proposed locations in fall 2005. Salinity varied significantly (p < 0.001) between the established RO-WTP and one of the proposed locations. From the four locations, we collected 21 species of macroinvertebrates. Location and date were not found to be significant. The effect of briny discharge on two species of macroinvertebrates dissipated beyond 5 m of the diffuser. The macrozooplankton (13 taxa) showed significant differences by date but not location while for the nekton (35 species) showed significant temporal differences (Spearman's Rho = 0.669) and moderate differences by location (Spearman's Rho = 0.237). There was no evidence that the RO-WTP has a significant impact on either the macrozooplankton or nekton collected. Overall, the biotic communities sampled from the four locations are typical for oligohaline to mesohaline estuaries. There were no significant differences in diversity for any biota collected. It is recommended that 1) data collection related to the discharge continue; 2) measurable indicators of biotic integrity from oligohaline to mesohaline environments be developed; and 3) post-construction samples at the two proposed RO-WTPs continue so as to investigate the effects of increased volume of brine on the local surface water as well as the resident and transient biota.  Ph.D