Southern Methodist University Research Articles

Conquering Change in Oil and Gas: How To Build a Learning Organization

Talent & Technology Former United States Secretary of State Colin Powell likes to tell the story of how Israeli Prime Minister Shimon Peres put his arm around his shoulder after the dissolution of the Soviet Union in 1991, and said, “We have lost our enemy; all we have now are problems.” Peres was certainly thinking of dangers that threaten all nations: poverty, famine, religious radicalization, desertification, drugs, proliferation of nuclear weapons, and ecological devastation. While it is not immune from global threats, the oil and gas industry faces its own set of persistent and continuously emerging challenges that drive change in the industry. They are Innovation: technology to boost output, processes that promote efficiency, new industry structures and alliances. Tim Dove, president and chief operating officer of Pioneer Natural Resources, said that hydraulic fracturing means that there are no dry holes. As a result, he believes that exploration and production firms have become similar to manufacturing companies. Their success depends on efficient operations. Capital: how much oil can be produced at what cost. The amount of oil that can be recovered is no longer constrained by geology. As George King, a global technology consultant for Apache Corporation, told the Wall Street Journal, “the constraint on how much oil can be produced isn’t geological ... we face technical and economic limits more than anything else.” Talent: accelerated attrition of baby boomers in the senior ranks. Industry firms face the rising practice of “poaching” of high potential leaders. On the other hand, firms struggle to accelerate young professionals into the “age of accountability” as leaders. The local Dallas chapter of Young Professionals in Energy has more than 4,100 members, making it one of the largest trade organizations in Texas. Andy Long, its 26-yearold chairman, has established a mentor program to connect its members and college students with industry veterans. Global: opportunities worldwide are not limited to the majors. Heyco Energy Group, an exploration company that has been active in the Permian Basin since the 1960s, today holds positions in 1.4 million acres in Spain and United Kingdom. Science and technology have turned the basin into “the hottest spot on earth,” according to Chief Executive Officer George Yates, and we “asked ourselves ‘where could we succeed given our experience and advances in technology?’ Europe was an obvious place.” Bruce Bullock, director of Maguire Energy Institute at Southern Methodist University’s Cox School of Business, boils down the industry’s challenges to financial performance. “The industry has to find ways through technology, efficiency, science, and other strategies to really improve its financial results over the next several years.” The drive for financial performance demands change leadership skills from all levels of management, and a new perspective on change. Business typically has used three perspectives on change, each with its own implementation method.

Potentially Dangerous Patients: A Review of the Duty to Warn

Each year, violence causes more than 1.6 million deaths worldwide and is one of the leading causes of death for persons ages 15 to 44 years. 1 Centers for Disease Control and Prevention National Center for Injury Prevention Violence prevention. http://www.cdc.gov/violenceprevention Google Scholar As a result of the long-term effects of deinstitutionalization, inadequate community resources, and a substantial number of uninsured persons, many individuals who are in imminent danger of harming themselves or others do not have timely access to mental health care services, forcing them to seek help in emergency departments. 2 Lamb HR Bachrach LL Some perspectives on deinstitutionalization. Psychiatr Serv. 2001; 52: 1039-1045 Crossref PubMed Scopus (267) Google Scholar Emergency nurses, who are at the frontline of health care, are in a prime position to identify persons at risk for violence and to have an impact on the safety of the patient, the staff, and the community. Elizabeth Henderson is Clinical Nurse Specialist, Massachusetts General Hospital, Boston, MA. Potentially Dangerous Patients: A Review of the Duty to WarnJournal of Emergency NursingVol. 42Issue 1PreviewI want to bring an error in a recent article to your attention. I was reading the article Potentially Dangerous Patients: A Review of the Duty to Warn by Elizabeth Henderson,1 and a major error jumped out at me. The article states that Texas recognizes “…Tarasoff as a legitimate piece of legislation, allowing but not mandating named professionals to warn potential victims.” This statement is completely false. Some of the other states mentioned are not exactly as portrayed either, but I am most familiar with Texas because I am a licensed psychologist here and teach the doctoral classes in ethics at Southern Methodist University. Full-Text PDF Potentially Dangerous Patients: A Review of the Duty to WarnJournal of Emergency NursingVol. 42Issue 1PreviewI would like to comment on the article “Potentially Dangerous Patients: A Review of the Duty to Warn.”1 I applaud Ms. Henderson’s work in highlighting the potential impact that emergency nurses may have on the safety of the individual, staff, and community by identifying patients who pose a risk for violence. Full-Text PDF

Structural infrasound signals in an urban environment

Historically, infrasound arrays have been deployed in rural environments where anthropological noise sources are limited. As interest in monitoring sources at local distances grows in the infrasound community, it will be vital to understand how to monitor infrasound sources in an urban environment. Arrays deployed in urban centers have to overcome the decreased signal to noise ratio and reduced amount of real estate available to deploy an array. To advance the understanding of monitoring infrasound sources in urban environments, we deployed local and regional infrasound arrays on building rooftops of the campus of Southern Methodist University (SMU) and collected data for one seasonal cycle. The data was evaluated for structural source signals (continuous-wave packets) and when a signal was identified the back azimuth to the source was determined through frequency wavenumber analysis. This information was used to identify hypothesized structural sources; these sources were verified through direct measurement, structural numerical modeling and/or full waveform propagation modeling. Permission to publish was granted by Director, Geotechnical & Structures Laboratory.

John Albert Majors Jr., 1920–2013, and William Harcourt Majors, 1925–2013.

John Albert Majors Jr., 1920–2013, and William Harcourt Majors, 1925–2013.

Contemporary African American literature: the living canon

Foreword Mat Johnson, University of Houston Acknowledgments Introduction Lovalerie King and Shirley Moody-Turner, Penn State University I. Politics of Publishing, Pedagogy, and Readership 1. The Point of Entanglement: Modernism, Diaspora, and Toni Morrison's Love Houston A. Baker, Jr., Vanderbilt University 2. The Historical Burden that Only Oprah Can Bear: African American Satirists and the State of the Literature Darryl Dickson-Carr, Southern Methodist University 3. Black is Gold: African American Literature, Literacy, and Pedagogical Legacies Maryemma Graham, University of Kansas 4. Hip Hop Fiction (feat. Women Writers) or, Other Things Hip Hop Music Has Taught Black Fiction Eve Dunbar, Vassar College 5. Street Literature and the Mode of Spectacular Writing: Popular Fiction between Sensationalism, Education, Politics and Entertainment Kristina Graaff, Center for Metropolitan Studies, Technical University of Berlin II. Alternative Genealogies 6. Portrait of the Artist as a Young Slave: Visual Artistry as Agency in the Contemporary Narrative of Slavery Evie Shockley, Rutgers University 7. Variations on the Theme: Black Family, Nationhood, Lesbianism and Sadomasochistic Desire in Marci Blackman's Po Man's Child Carmen Phelps, University of Toledo 8. Bad-Brother-Man: Black Folk Figure Narratives in Comics James Braxton Peterson, Bucknell University III. Beyond Authenticity 9. Sampling the Sonics of Sex (Funk) in Paul Beatty's Slumberland L. H. Stallings, Indiana University 10. Urkel No More? Black Geeks in Contemporary Black Literature Alexander Weheliye, Northwestern University 11. The Crisis of Authenticity in Contemporary African American Literature Richard Schur, Drury University 12. Someday We'll All Be Free: Contemporary Fiction and the Post-Oppression Narrative Martha Southgate, Brooklyn Novelist IV. Pedagogical Approaches and Implications 13. Untangling History, Dismantling Fear: Teaching Tayari Jones's Leaving Atlanta Trudier Harris, UNC-Chapel Hill, Emerita 14. Reading Kyle Baker's Nat Turner with a Group of Collegiate Black Men Howard Rambsy II, Southern Illinois University 15. Toward the Theoretical Practice of Conceptual Liberation: Using An Africana Studies Approach to Reading African American Literary Texts Greg Carr, Howard University and Dana Williams, Howard University Afterword Alice Randall, Vanderbilt Novelist Annotated Bibliography Pia Deas, Lincoln University and David Green, St. Johns University Index

Book Reviews

Thirty-two papers present a systematic analysis of the Russian economy. Papers focus on a look at the past; institutions and governance; resources and environment; financial and real sectors; regions; and policy and social challenges. Alexeev is Professor of Economics at Indiana University, Bloomington. Weber is Robert H. and Nancy Dedman Trustee Professor of Economics and Director of the Richard Johnson Center for Economic Studies at Southern Methodist University.

River of Hope: Forging Identity and Nation in the Rio Grande Borderlands, by Omar S. Valerio-Jiménez

River of Hope: Forging Identity and Nation in the Rio Grande Borderlands, by Omar S. Valerio-Jimenez. Durham, Duke University Press, 2013. xiv, 369 pp. $99.95 (cloth), $26.95 US (paper). The border between Mexico and the United States has been designated as the Rio Grande River valley since 1848, but the meeting of cultures in this area began as early as the eighteenth century. Throughout those years, it has been an area of violence in which multiple conquests have taken place, changing the social and political of the people who have lived along both sides of the Rio Grande or, as the river is called in Mexico, the Rio Bravo. This excellent work on frontier contact traces the lives of the Hispanic residents as they were changed from privileged Spanish subjects into neglected Mexican and, ultimately into unwanted American citizens (p. 3). Until recently, scholars had traced the civil rights movements in the Lower Rio Grande Valley to the twentieth century. Omar S. Valerio-Jimenez, following the lead of such authors as Katherine Benton-Cohen, Eric Meeks, and Anthony Mora, maintains that the roots of the hybrid identities (p. 12) that have been created along the border began 100 years earlier with the actions of such men as Juan Seguin and Juan Cortina. As he notes in his introduction, the regionalism, cultural practices and kinship ties continually subverted state attempts to control and divide the population (p. 1). The people of the border region retained power over their destinies and carved out spaces of opposition (p. 3). He is careful to note that different areas and different people found different ways to accommodate and ensure their own survival. As a product of the border environment himself, Valerio-Jimenez benefited from the experiences of his own family and their lives in the border culture. His training at the University of California at Los Angeles (UCLA) and at Southern Methodist University (SMU) provided him the opportunity to work under some of the best historians in the Chicano/a fields both in California and in Texas. In six chapters, Valerio-Jimenez reviews the history of the borderlands from the earliest Spanish settlements to the arrival of the Americans after the peace treaty of Guadalupe Hidalgo in 1848 and the conflicts which resulted from those changes. Using a variety of sources from archives in Spain, Mexico, and the United States, the author includes court cases, government and personal correspondence, and modem newspaper accounts to provide an historical account that has both depth and breadth of coverage of a complex and difficult topic. In chapter one, the author studies the initial settlements by Jose de Escandon, the Spanish colonizer of the 1740s who established towns and missions along the northwest coast of New Spain and along the Rio Bravo del Norte. This first contact between Spanish and Indians created a unique ethnic and regional identity that would continue into the present. …

Natural infections of tetrathyridia ofMesocestoidesspecies in deer mice,Peromyscus maniculatus, from New Mexico

Abstract At Southern Methodist University campus about 6 miles south of Taos, New Mexico,, we recovered tetrathyridia of Mesocestoides in five Peromyscus maniculatus in the summers of 2008 (3 of 129, 0.023%), 2009 (0 of 98, 0%), 2010 (1 of 112, 0.008%), 2011 (0 of 88, 0%), and 2012 (1 of 86, 0.011%). Tetrathyridia from the body cavity of one of the five infected mice were injected into the peritoneal cavity of laboratory white mice, Mus musculus. Our later examination of the laboratory mice revealed heavy infections of tetrathyridia continuing to reproduce asexually. Here we provide important new information on the prevalence of asexuality among tetrathyridia and underscore the need for further study of this variation among metacestodes of this cosmopolitan genus.

Seasonal variations of infrasound detections and their characteristics in the western US

Automatic infrasound detection is analyzed with infrasonic data from the western US for the time period of November 2010 to October 2012. Data from nine University of Utah Seismograph Stations (UUSS) infrasonic arrays are supplemented by three additional arrays in Nevada, operated by Southern Methodist University (SMU). In this study, the detection procedure is based on an adaptive F-detector (AFD) that accounts for both correlated and uncorrelated noise by capturing the time-varying background noise conditions. The adaptation of the detector, characterized by time varying linear remapping of the F-distribution (C-value), depends on the background noise level at the arrays including weather conditions with seasonal variations and local site effects. The infrasound detection catalog consists of 580,177 signals, depending on time and space as well as data availability at individual stations. Based on the Ground-to-Space (G2S) specifications, the number of detections is shown to be correlated with seasonal variations in the stratospheric winds, illustrating the time varying nature of infrasound propagation. These seasonal variations of infrasound detections include the number of detections, correlation value, occurrences in time, phase velocity, and azimuth. The majority of events occur during working hours, Monday through Friday, suggesting a human cause. Based on the automatic detection results, we reviewed the waveforms generated from the known repeated sources such as Dugway Testing Ground (DTG) and Utah Test and Training Range (UTTR) in Utah, and New Bomb (NB) in Nevada. In order to validate the automatic infrasound detection catalog, we document the celerities of automatic infrasound arrivals during the summer and winter using the seismic origin times of NB explosions. Infrasound propagation is dependent on the seasonal variation of wind conditions as well as source location and array distribution.

Automatic infrasound detection and location of sources in the western United States

A catalog that characterizes sources of regional infrasound observed in the western U.S. (1 November 2010 to 31 October 2012) is produced. Data from nine University of Utah Seismograph Stations infrasonic arrays are supplemented by three additional arrays in Nevada, operated by Southern Methodist University. The detection procedure using an adaptive F-detector provides input into the Bayesian Infrasonic Source Location procedure. The catalog consists of 1510 events with indication of repeated events from many locations such as Dugway Testing Ground, Utah Test and Training Range, and New Bomb. We analyzed the relationship between seasonal variations in the event locations and wind conditions using the Ground-to-Space specifications based on publicly available operational numerical weather prediction data analysis products supplement by empirical models above 80 km. There is significant commonality between this study's bulletin and the Western United States Infrasonic Catalog published by Walker et al. (2011). A previous study utilized infrasound signals detected on the USArray Transportable Array seismic stations (2007–2008). Both results document the vast majority of events that occur during working hours, suggesting a human cause. To illustrate the utility of the event bulletin for exploring atmospheric dynamics, propagation paths of an event detected during the equinox period, when the stratospheric wind is low, were generated using a ray-tracing algorithm. We found that the observations contain stratospheric arrivals, not predicted by ray theory, possibly due to gravity waves increasing the effective jet speed.

A Presidential Tribute to James M. Buchanan: In Appreciation of the Man, His Work, and His Example

[Author Affiliation]Dwight R Lee, * O'Neil Chair of Global Markets and Freedom, Cox School of Business, Southern Methodist University, Dallas, TX 75275, USA; E-mail: leed@smu.eduJR Clark, [dagger] Probasco Chair of Free Enterprise, The University of Tennessee at Chattanooga, 313 Fletcher Hall, Department 6106, 615 McCallie Avenue, Chattanooga, TN 37403, USA; E-mail: j-clark@utc.edu ; corresponding author1. IntroductionEveryone presenting an article in this session has been a student of Jim Buchanan, either through privilege of sitting in his classes, being a colleague of his, or through his influence on how we thought about a wide range of economic issues. Many of us would agree that without Jim's example and encouragement when we were young and struggling economists, we would not have followed him as president of Southern Economic Association (SEA). In order to express appreciation for Jim, his work, and his example, and using his 1963 SEA Presidential Address as a starting point, we hope to illustrate some of his connections with, and influence upon, our own published work and careers. Some of my more direct connections to Jim's influence arise from jointly authored work with J.R. Clark, Secretary/Treasurer of SEA; thus, I have enlisted his able assistance in this effort.Jim's SEA Presidential Address (Buchanan 1964) is a methodological piece making case that study of economics is best approached by concentrating on and coordination that arises spontaneously when people pursue their interests subject to market constraints. Jim contrasts his position to that of Lionel Robbins (1932) who saw economics as science of choices necessitated by scarcity. Jim's sharp contrast with Robbins fomented rise of two major economic methodologies widely discussed in literature today as and exchange paradigm. But, roots of contrast, according to Wagner (2007), find seed as far back as Leon Walras and Karl Menger. More importantly, however, both Kohn (2004, 2007) and Douglass (2012) provide evidence that Robbins' value paradigm is increasingly being replaced in contemporary economics by paradigm advocated by Jim Buchanan. Boettke, Fink, and Smith (2012, p. 1219) rename distinction as between mainline (exchange economists) and mainstream (choice-necessitated-by-scarcity economists) offering significant evidence that over period 1970 to 2007 mainline [exchange] economists had more of an impact than mainstream economists.We find this increasing appreciation for, and impact of, methodology rewarding since it has been lens through which much of our own work has been developed. After discussing Jim's position on in his Presidential Address, we relate it to a few of his comments on broader nature of from work that both preceded and followed his address. Finally, we see this work as segueing into some of our own published work.2. It Takes at Least Two to Make an EconomyBuchanan argues that economists have relegated themselves to doing nothing more than solving engineering problems by accepting Lionel Robbins' view that economics is about allocating limited resources to achieve a clear objective (maximizing a utility function), subject to specified constraints. Instead, Buchanan sees economics as study of Adam Smith's (1759) invisible hand, or how markets coordinate actions of individuals pursuing their own interests by making genuine choices. The problem with Robbins' approach to economics, in Buchanan's view, is that it has led economists to begin with assumption that the utility function of choosing agent is fully defined in advance (Buchanan 1964, p. 217). But this means thatno decision, as such, is required; there is no weighing of alternatives. On other hand, if utility function is not wholly defined, choice becomes real, and decisions become unpredictable mental events. …

The Civil War in Photographs: New Perspectives From the Robin Stanford Collection by Anne Peterson (review)

Reviewed by: The Civil War in Photographs: New Perspectives From the Robin Stanford Collection by Anne Peterson Bob Cavendish The Civil War in Photographs: New Perspectives From the Robin Stanford Collection. By Anne Peterson. (Dallas: DeGloyer Library, 2013. Pp 104. Color, sepia, and black and white illustrations, works cited.) “If he has not brought bodies and laid them in our door yards . . .” the New York Times said of Matthew Brady’s photographs of Antietam’s casualties, “he has done something very like it.” Photography matured during the U.S. Civil War, expanding beyond the key and the commonplace participants. Nineteenth- century Americans who would not typically travel more than ten miles from their “door yards” and neighborhoods saw a broader, war-ravaged America of battlefield sites, hospitals, camp grounds, and villages through a camera lens; photographs became the basis of newspaper sketches accompanying war dispatches published in the Times and Harpers Weekly. Photographers like Brady, Alexander Gardner, G. H. Houghton, Samuel Cooley, and dozens of others amassed extensive inventories of glass plate images, which ultimately became so commonplace that all too many wound up as windowpanes in postwar greenhouses if not lost altogether. Yet hundreds of others survived in the National Archives and in private collections of limited access. Fortunately for scholars and Civil War aficionados, Robin Stanford of Houston, Texas, spent forty years building a collection of primarily stereoscopic images based on well-known and also less familiar photographs. The Stanford Collection, the subject of this brief volume, completed its appearance in March 2013 at the DeGolyer Library on the Southern Methodist University campus in Dallas. Visitors saw antebellum and wartime images by less famous southern photographers, images of daily military life, slave life, and battle-site photographs from locales in Georgia, Louisiana, Mississippi, and Texas. Exhibit curator Anne Peterson’s Civil War in Photographs (CWP) is an introduction to the Stanford collection. In eighteen sections, she includes various stereoscope images, sepia-toned and some hand tinted. Included in CWP are rarely (if ever) seen before views of Brownsville, Texas, during occupation and poignant images of the country in mourning following Lincoln’s murder in 1865. Captions explain the background and subject matter for most of the sample images but there are occasional errors. A Winfield Hancock photograph caption scrambles the order of those in the picture and misidentifies Union general Francis C. Barlow (a future prosecutor of New York’s Tweed Ring) as Seth M. Barton, a Confederate general unlikely to appear in the same picture alongside Hancock in 1864. Peterson’s narration throughout CWP moves quickly. The raison d’être, however, is the corpus of photographs behind the glimpses afforded in these ninety-plus pages, a sample of images compiled by a less well-known body of men whose images we did not often see. This is not a major Civil War work but it does not purport to be. For the casual reader, CWP is an interesting commentary on our most devastating war. For the scholar, CWP is a treasure that escaped the fate of its greenhouse windowpane counterparts and made available thanks to the teamwork of the DeGolyer staff and Anne Peterson and the generosity of Robin Stanford. [End Page 441] Bob Cavendish Austin, Texas Copyright © 2014 The Texas State Historical Association

Printed for Performance: Ceremonial and Interactive Aspects of Books from Europe’s First Presses

“O Rare! Performance in Special Collections.” I will admit that when the theme for the 2013 RBMS preconference was announced, I assumed that all of the papers would come from colleagues who work directly with performing arts collections. Given that I work at Perkins School of Theology at Southern Methodist University, it might have been more promising for me if, instead of beginning “O Rare,” the title had begun “Orare,” the Latin verb to pray. But then I considered the first words of the conference abstract: Libraries house performance. Although the focus of the library where I work is not . . .

Moody’s New Magic

Plans to expand premium seating and amenities at Moody Coliseum, Southern Methodist University’s basketball stadium, required engineers to make significant cuts in the existing seating bowl without compromising structural stability. The new spaces, along with two additions to the arena, have ensured that the Dallas university is ready to usher in a new era of Mustangs athletics.

Shaping Your Leadership Legacy

The Sunday, April 21, 2013, issue of Parade Magazine, an insert in most newspapers across the United States, featured an exclusive interview with former President George W. Bush and his wife Laura. 1 Updegrove MK GWB. Parade Magazine. April 21, 2013; : 8-14 Google Scholar The interview coincided with the Spring 2013 opening of President Bush's Presidential Library and Museum located on the campus of Southern Methodist University in Dallas, Texas. The intent of the library is to provide historians with the ability to study the President's papers and also capture his legacy for all to remember. Although most of us will not have our very own presidential library, we still will leave behind a leadership imprint, good or bad, for which we will be remembered. This imprint or legacy will not just involve the papers we leave for posterity, but will also reflect how our colleagues, employees, and others think and behave as a result of the time they spent working with us. 2 Galford RM Maruca RF Your Leadership Legacy: Why Looking Toward the Future Will Make You a Better Leader Today. Harvard Business School Press, Boston, MA2006 Google Scholar Reading the Parade piece forces leaders to reflect on their own legacy and consider the following questions: What will be my leadership legacy? Why does a leadership legacy really matter? When should I begin to reflect on my leadership legacy? The Sunday, April 21, 2013, issue of Parade Magazine, an insert in most newspapers across the United States, featured an exclusive interview with former President George W. Bush and his wife Laura. 1 Updegrove MK GWB. Parade Magazine. April 21, 2013; : 8-14 Google Scholar The interview coincided with the Spring 2013 opening of President Bush's Presidential Library and Museum located on the campus of Southern Methodist University in Dallas, Texas. The intent of the library is to provide historians with the ability to study the President's papers and also capture his legacy for all to remember. Although most of us will not have our very own presidential library, we still will leave behind a leadership imprint, good or bad, for which we will be remembered. This imprint or legacy will not just involve the papers we leave for posterity, but will also reflect how our colleagues, employees, and others think and behave as a result of the time they spent working with us. 2 Galford RM Maruca RF Your Leadership Legacy: Why Looking Toward the Future Will Make You a Better Leader Today. Harvard Business School Press, Boston, MA2006 Google Scholar Reading the Parade piece forces leaders to reflect on their own legacy and consider the following questions: What will be my leadership legacy? Why does a leadership legacy really matter? When should I begin to reflect on my leadership legacy?

The Horton Site (41CP16) on Big Cypress Creek in the East Texas Pineywoods

The Horton site (41CP16) is primarily a Late Paleoindian (ca. 10,000 years B.P.) to ancestral Caddo site (ca. post-A.D. 800), although there is a small mid-19th-early 20th century component as well. This site is on an upland slope (320-350 ft. amsl) that once overlooked the Big Cypress Creek floodplain; the channel of the creek was ca. 100 m north from the site. The site is currently under the waters of Lake Bob Sandlin. Robert L. Turner, Jr. surface collected the site during the 1950s and 1960s, and the study of this substantial artifact assemblage is the subject of this article. Dick Ping Hsu recorded the Horton site in September 1968 during the survey for then proposed Titus County Reservoir. He noted that the site was on the top of a hill, at 350 ft. amsl, and was marked by flakes and pottery sherds. When the site was re-visited and re-recorded by Southern Methodist University (SMU) in 1974 it was partially covered in pine and oak trees, as well as pecan and sweetgum. Part of the site also had an orchard and a cultivated field. Site size was estimated by SMU crews at 60 x 30 m, but Turner estimated the size of the site as approximately 1 acre. Other investigations besides Turner’s at the Horton site include previously mentioned surface collections by Hsu and Sullivan prior to the construction of Lake Bob Sandlin, and by a private collector (David Laden) (Thurmond 1990:52). These collections indicated that the Horton site had a Late Paleoindian component marked by San Patrice, Dalton, and Plainview points, lithic debris from local ferruginous, quartzite, and petrified wood, as well as a ca. post-A.D. 800 Caddo component with plain and decorated sherds (red- and brown-slipped, incised, punctated, and engraved). Thurmond suggests the Caddo component dates to the Middle Caddo period (ca. A.D. 1200-1450).

Maestro di Pico i iluminacije u inkunabuli De Civitate Dei (Nicolas Jenson, Venecija, 1475.) u samostanu Sv. Duje u Kraju na Pašmanu

Maestro di Pico i iluminacije u inkunabuli De Civitate Dei (Nicolas Jenson, Venecija, 1475.) u samostanu Sv. Duje u Kraju na Pašmanu

Profiles: A Pilgrim’s Progress: Decherd Turner, 1922-2002

A biographical profile of Decherd Turner, director of the Bridwell Library at Southern Methodist University, Dallas, TX from 1950-80, and director of the Harry Ransom Humanities Research Center at the University of Texas in Austin from 1980-88. This profile focuses on Turner's remarkable personality and his accomplishments in building the special collections of these institutions.

Focus on Authors

Focus on Authors

Development of Plasma Window for gas charge stripper at RIKEN RIBF

A differential pumping system with a Plasma Window (PW) has been developed for an application to a window-less He gas charge stripper. A PW with Southern Methodist University design was newly fabricated and tested off-line for evaluation of differential pumping efficiency. Switching gases for plasma seed from Ar to He was tested. It was found that the PW reduced the pressure at the first differential pumping section to 1/13 for Ar and to 1/17 for He, comparing with differential pumping without PW. At the second pumping section, the pressures were drastically reduced to 1/160 and to 1/4,520 for Ar and He, respectively. These pressure reduction factors indicate that one differentially pumped stage could be removed from a conventional differential pumping system.