University Of Missouri-Columbia Research Articles

A technology and nursing collaboration to help older adults age in place

This is an account of an active collaboration between Computer Engineering, Health Informatics, and Nursing within an academic health science center to improve the quality of life of older adults as they "age in place." The Sinclair School of Nursing at the University of Missouri-Columbia has developed a licensed home health agency, Senior Care, to provide the care needed by residents of TigerPlace, a specially designed independent living center near the University. Technology has the potential to help address common problems encountered by older adults related to functional decline. Collaboration between Nursing, Computer Engineering, and Health Informatics is likely on a path to improve the quality of life of seniors.

Efficacy of visual barriers in reducing black-tailed prairie dog colony expansion

Efficacy of visual barriers in reducing black-tailed prairie dog colony expansion

Megawatt, Pulsed Ultraviolet Photon Sources for Microbial Inactivation

The University of Missouri-Columbia (UMC) has developed pulsed ultraviolet (UV) photon sources commensurate with enhanced ultraviolet inactivation of hazardous microbials on surfaces or in a water matrix. Pulsed xenon flashlamps have been optimized to produce a high ultraviolet photon yield in the 180-320 nm range that is lethal to microbials and has a high cross-sectional interaction with photosensitizer chemicals to synergistically enhance microbial inactivation. Electrical models have been derived to predict the time-dependent plasma discharge impedance profiles of the flashlamp UV source.

Macro variables and international stock return predictability

In this paper, we examine the predictability of stock returns using macroeconomic variables in 12 industrialized countries. We consider both in-sample and out-of-sample tests of predictive ability, with the out-of-sample forecast period covering the 1990s for each country. We employ recently developed out-of-sample tests that have increased power, namely, the McCracken [Asymptotics for out-of-sample tests of Granger Causality, Manuscript, University of Missouri-Columbia (2004)] variant of the Diebold and Mariano [Journal of Economics Business Statistics 13 (1995) 253] and West [Econometrica 64 (1996) 1067] test for equal predictive ability and the Clark and McCracken [Journal of Econometrics 105 (2001) 85] variant of the Harvey, Leybourne, and Newbold [Journal of Business and Economics Statistics 16 (1998) 254] test for forecast encompassing. In addition to analyzing the predictive ability of each macro variable in turn, we use a procedure that combines general-to-specific model selection with out-of-sample tests of forecasting ability in an effort to identify and test the “best” forecasting model of stock returns in each country. Among the macro variables we consider, interest rates are the most consistent and reliable predictors of stock returns across countries.

Evaluation of interns by senior residents and faculty: is there any difference?

Both senior residents and faculty members evaluate family practice interns (PGY-1) on the inpatient family medicine service at the University of Missouri-Columbia. The purpose of this study was to investigate the content and nature of narrative comments on a clinical evaluation sheet. Objective 1. The authors placed the subjective comments made by faculty and senior residents in their evaluations of PGY-1 residents into 12 distinctive categories. Objective 2. Comments were coded with a positive or negative valence. Objective 3. The genders of the evaluator and learner were recorded. All evaluations made between 1996 and 1999 were analysed. A total of 1341 individual comments were reviewed. Objective 1. Categories used most often were generic comments (20.2%), personal attributes (18%), and clinical competence (14.1%). There was no difference in category use based on the experience level of the evaluator (P = 0.17). Objective 2. The majority of the comments (81.9%) were positive in nature. Senior faculty members were significantly less likely to make negative comments than were junior faculty members or senior residents (P = 0.004). Objective 3. There were no differences in category use based on the gender of the evaluator (P = 0.13). Objective 1. Narrative evaluation comments may be placed into 12 distinctive categories. Most comments are generic and do not help to inform learning. Objective 2. A total of 82% of comments were positive. Residents were more likely to make negative comments than senior faculty members. Objective 3. There was no demonstrable gender bias in writing negative comments.

Use and Disposal of Uranyl Acetate in the Electron Microscope Laboratory: Glow in the Dark or Walk in the Park?

Abstract Let's face it—uranyl acetate is the perennial bad boy of chemicals, at least from the standpoint of disposal. A necessary evil in the electron microscopy laboratory, it presents a quandary for those trying to comply with hazardous materials regulalions, an effort complicated by its nominal radioactivity. Disposal costs of radioactive materials can be daunting. A past posting to the Microscopy Society of America listserver gave an estimate of US$7000 per liter and local follow up indicated that, although probably high, that may not be an unreasonable figure. In these times of diminished subsidies and expectations of increased cost recovery by academic service facilities like ours, this is of paramount concern. The Electron Microscopy Core Facility at the University of Missouri-Columbia follows guidelines issued by our campus Environmental Health and Safety (EHS) office regarding hazardous materials and their disposal.

A simulation exercise to teach principles of bovine reproductive management.

Students in Reproductive Management (a senior-level course with approximately 20 to 50 students per semester) at the University of Missouri-Columbia are required to participate in a simulation exercise that is designed to improve reproductive efficiency in a beef herd. During a simulated 5-yr period, students must 1) improve reproductive efficiency in a beef cow-herd through implementation of reproductive management principles; 2) determine the economic impact of reproductive management decisions in a beef herd; and 3) evaluate the constraints of different geographical locations on approaches to reproductive management. Groups of three to four students are provided with the reproductive and economic records of a farm/ranch located in different parts of North America. Students create reproductive management plans consisting of 1) detailed discussion of farm/ranch environment (climate, terrain, forage and grain availability, and stocking rate; season for breeding and calving; and justification for choice of breed); 2) assessment of current level of reproductive performance; 3) identification and economic justification of specific (measurable) objectives; 4) discussion of alternatives for accomplishing specific objectives; 5) prediction of reproductive performance (pregnancy rate, quantity of calf weaned per cow exposed, and cost per quantity of calf weaned) in response to implementation of specific management practices; and 6) an annual and 5-yr reproductive and economic summary. Students obtain livestock marketing information for their assigned location via the Internet. Spreadsheets were developed to calculate the reproductive efficiency of postpartum cows and replacement heifers based on management decisions made by the groups and to calculate a yearly economic summary for each of the 5 yr. Management decisions are justified in a written report, and oral presentations are given to the class when the project is completed. Greater than 85% of students indicated that the exercise increased their understanding of how management decisions affect reproductive efficiency and profitability in a beef operation and also provided added confidence for students that applied for beef management positions.

Comments on “E. Pungor, The New Theory of Ion Selective Electrodes. Sensors 2001, 1, 1-12”

first_page settings Order Article Reprints Font Type: Arial Georgia Verdana Font Size: Aa Aa Aa Line Spacing:    Column Width:    Background: Open AccessCommentary Comments on “E. Pungor, The New Theory of Ion Selective Electrodes. Sensors 2001, 1, 1-12” by K. L. Cheng Department of Physics, University of Missouri-Kansas City, Kansas City, Missouri 64110, USA Sensors 2004, 4(1), 14-15; https://doi.org/10.3390/s40100014 Received: 15 March 2004 / Accepted: 23 March 2004 / Published: 30 March 2004 Download Download PDF Download PDF with Cover Download XML Download Epub Versions Notes The techniques and information described in this paper [1] are nothing new. For instance, memory effect, x-ray photoelectron spectroscopy, no ion penetration from the membrane surface to the inside membrane, the K+ adsorption at the valinomycin, etc. are well known [2]. In particular, the author did not cite many references for the information. For instance, the K+ and membrane graph (Fig. 1) was already reported in the literature, the author just copied it without citation or having permission from the publisher (Ref. 3, Fig. 3a). Without references, it gives the readers an impression that the information came from the author's original work. This violates the international code of ethics conduct.The importance of the “new theory” and “how is the electrode potential produced” is emphasized in the paper [1]. However, the author only stated in about 10 lines at the end of paper to conclude with a Gibbs–Duham thermodynamic equation, –ΔG = nFE. He stated the ion adsorption and avoided its basis as being the capacitor theory. His simple statement indicated that an electrode potential is caused by charge separation at the surface of the electrode and that the interpretation is connected with the chemisorption of ion from the solution without any detailed discussions and logic supports. Obviously, he tried on purpose to avoid the key word capacitor because we proposed the capacitor theory. Not only is the ion adsorption by the electrode surface well known [2], the thermodynamics has nothing to do with the mechanism. Ion adsorption and charge density are closely associated with a capacitor. The mechanism should be emphasized in any new theory. The author has been unfamiliar with the difference between thermodynamics and mechanism; he mixed them up in his previous paper [4]. The new theory or mechanism in this paper is just a replica of the one reported before [4]. One should read my paper to understand the difference between thermodynamics and mechanism and their applications in ion selective electrode potential development [5]. We may have the same ΔG but different mechanisms. A scientific paper should be carefully prepared to benefit the readers, not playing magic tricks to mislead them. I have recently emphasized the importance of an author's careful attitude in writing chemical publications [6]. ReferencesPungor, E. The New Theory of Ion Selective Electrodes. Sensors 2001, 1, 1–12. [Google Scholar]Cheng, K. L. Capacitor theory for nonfaradaic potentiometry. Microchem. J. 1990, 42, 524. [Google Scholar]Cheng, K. L. A capacitor model for membrane electrodes. Proceedings, 31st IUPAC Congress Anal. Chem. Div., Sofia, Bulgaria; 1987; pp. 173–187. [Google Scholar]Cheng, K. L. Recent development of non-faradaic potentiometry. Microchem. J. 2002, 72, 269. [Google Scholar]Buck, R.P.; Lindner, E. Studies of potential generation across membrane sensors at interfaces and through back. Acc. Chem. Rev. 1998, 31, 257–266. [Google Scholar]Pungor, E. How to understand the response mechanism of ion-selective electrodes. Talanta 1997, 44, 1505–1508. [Google Scholar]Cheng, K.L. Explanation of misleading Nernst slope by Boltzmann equation. Microchem. J. 1998, 59, 457–461. [Google Scholar]Cheng, K. L. Comments on chemical publications. Paper presented in the 38th ACS Midwest Regional Meeting, University of Missouri-Columbia, November 2003. © 2004 by MDPI ( http://www.mdpi.org). Reproduction is permitted for noncommercial purposes. Share and Cite MDPI and ACS Style Cheng, K.L. Comments on “E. Pungor, The New Theory of Ion Selective Electrodes. Sensors 2001, 1, 1-12”. Sensors 2004, 4, 14-15. https://doi.org/10.3390/s40100014 AMA Style Cheng KL. Comments on “E. Pungor, The New Theory of Ion Selective Electrodes. Sensors 2001, 1, 1-12”. Sensors. 2004; 4(1):14-15. https://doi.org/10.3390/s40100014 Chicago/Turabian Style Cheng, K. L. 2004. "Comments on “E. Pungor, The New Theory of Ion Selective Electrodes. Sensors 2001, 1, 1-12”" Sensors 4, no. 1: 14-15. https://doi.org/10.3390/s40100014 Find Other Styles Article Metrics No No Article Access Statistics For more information on the journal statistics, click here. Multiple requests from the same IP address are counted as one view.

Andean Livelihood Strategies and the Livestock Portfolio

Culture & AgricultureVolume 26, Issue 1-2 p. 69-79 Andean Livelihood Strategies and the Livestock Portfolio Associate Professor Corinne Valdivia, Associate Professor Corinne Valdivia Agricultural economics at the University of Missouri-Columbia.Search for more papers by this author Associate Professor Corinne Valdivia, Associate Professor Corinne Valdivia Agricultural economics at the University of Missouri-Columbia.Search for more papers by this author First published: 28 June 2008 https://doi.org/10.1525/cag.2004.26.1-2.69Citations: 11AboutPDF ToolsExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Citing Literature Volume26, Issue1-2March 2004Pages 69-79 RelatedInformation

Effect of management practices and cropping systems on earthworm abundance and microbial activity in Sanborn Field: a 115-year-old agricultural field

Sanborn Field, an agricultural demonstration field at the University of Missouri-Columbia, has over 100 years of cropping histories and management practices implemented at this site. We examined the effect of these cropping systems and management practices on earthworm populations and microbial activity. A field experiment was conducted to characterize and quantify earthworms and to determine the microbial activity in the same selected plots. We sampled 14 plots at the site, six of which were the original plots established in 1888 with the same cropping histories and management, and eight of which had been modified over the years to accommodate changing farmer needs and scientific questions. Earthworms and soil samples were collected in the spring and fall of 1999. Aporrectodea trapezoides, Aporrectodea caliginosa, and Lumbricus terrestris were the dominant species found in this field. Lumbricus terrestris was commonly associated with the no-tillage plot at Sanborn Field. Due partly to soil moisture conditions, most of the species were found and identified during the spring. Microbial activity, as expected, was greatest during the spring. Manure, no-tillage and crop rotations that include legumes had the greatest earthworm abundance and microbial activity. In general, where no fertility treatments were added to soil or where food sources were lacking, earthworm abundance decreased significantly. The abundance of earthworms found in this field reflected the cropping history and management practices used recently and within the last 100 years. In most cases, microbial activity showed similar trends as earthworm density. However, some dynamic microbial transformations, like nitrification, do not always follow the same trend as potential soil quality biotic indicators. Earthworms, along with microbial activity, may serve as useful soil quality indicators in sustained and short-term field trials.

An Introduction to Spanish Post-colonial Exile: The Narrative of Donato Ndongo

An Introduction to Spanish Post-colonial Exile: The Narrative of Donato Ndongo Michael Ugarte is Professor of Spanish Literature at the University of Missouri-Columbia . Ugarte is the author of books and articles dealing with modern Spanish literature and culture, among which is Shifting Ground: Spanish Civil War Exile. He is currently working on a book on Spain's cultural relations with Africa in the twentieth century. The writing of Donato Ndongo, Equatorial Guinea's foremost intellectual and novelist (now living in exile in Murcia) has much to do with the post-colonial condition both in terms of politics and in terms of the complexities (philosophical as well as aesthetic) of representation . He has written many historical essays concerning his country, as well as novels. The fictional narratives have the feel of epics; they dramatize history in the form of eyewitness testimony, accounts that question the causes of the events as well as questions about the very rendering of these events. These narratives make for the discussion of perspective, identity , nostalgia (typical of exile writing), and they do so in a way that is unusual in Western culture. Ndongo has said that one of his primary goals is to recast his oral tradition, to replicate the stories he heard as a child and continues to hear and read as an adult and to tell them as if he were the griot, Africa's archetypical story-teller, chosen by his community or the spirits of the clan to tell that community who its members are and how they got to be the way they are. Donato Ndongo is "Western" in two specific senses: he is from the region of central west Africa, an area that includes the nations of Senegal, Cameroon, Gabon, and Nigeria. But he is also "European." Indeed, in being from a former Spanish colony Ndongo has a lot of Europe in him, despite Spain's much-discussed reputation of being at the margins of Europe. Ndongo might be considered European in the postmodern or postcolonial sense in much the same way as are African writers steeped in the so-called "Western tradition." The very title of Ndongo's first novel, Los tinieblas Arizona Journal of Hispanic Cultural Studies Volume 8, 2004 178 Arizona Journal of Hispanic Cultural Studies de tu memoria negra, comes from a line of verse of one of the foremost proponents of "négritude," Leopold Senghor, in a poem from Chants d'ombre, "Gardé jalousement par les ténèbres fidèles de leur mémoir noire" (28), also one of the novel's epigraphs: "guardado celosamente por las tinieblas fieles de su memoria negra" (J)? This novel takes the form ofan Afro-Spanish bildungsroman narrated by a first/second person in search of racial, cultural, linguistic, existential identity, all very much within a socio/ historic colonial structure. The frame consists of an opening chapter "zero" evoking the remembrances of this I/you (a person without a name in the novel) when he was an adolescent in his native Equatorial Guinea. This first memory is the rendition of his decision not to become a priest, a difficult move not as much for him as for his then mentor, Father Ortiz—especially when he as a lad declares to the priest, "Reverencia, Õ frica no necesita únicamente sacerdotes" (17). Ndongo moves from this opening scene to the story of the I/you from his childhood through adolescence and ending with his depatture from his community. The final images of this first chapter are reminiscent of the evocations of remembrance in Nabokov's well-known autobiography, Speak Memory: Es otoño. Llueve. Hace frÃ-o, pero no lo notas. Es un tiempo desgraciado que re hace sentirte molesto, que te lleva recuerdos de una niñez que condicionarÃ-a para siempre tu existencia. A través de la persiana medio levantada para aprovechar los últimos rayos de luz percibes el eco del deambular ajetreado de los habitantes de la gran ciudad. La monoton Ã-a exasperante y sublime de las gotas contra el cristal trae a ru memoria un paisaje atrozmente distinto (naturaleza exultante contra cemento y cristal), el que divisabas desde tu ventana del seminario de Banapá. Definitivamente...

Vanishing Timidity: A Roundtable on African Literature and Culture in the Language and Literature Classroom

Vanishing Timidity: A Roundtable on African Literature and Culture in the Language and Literature Classroom Thefollowinground-tablediscussiontookplaceat theUniversityofMissouri-ColumbiainNovemberof2003amongselectedfacultyandgraduate studentswhoseresearchandteachingdealwithvarious aspectsofAfricancultureandcivilization.Theparticipants were as follows: JuanamarÃ-a Cordones Cook Gabriela DÃ-az Cortez Rangira Bea Gallimore Chris Okonkwo Margaret Olsen Cristina RodrÃ-guez Cabrai Michael Ugarte Flote Zephir MichaelUgarte(MU)(Spanish,ModernPeninsularLiterature ):ManyofusdoingresearchinHispanicLiteratureattheUniversityofMissourioftenpointout thelackofattentiontotheHispanicworldoutsideof Spanishdepartments.Yetthelackofattention,we must admit, is exacerbated when we think of Africa and the little known about that continent both among students and colleagues. I have gathered together a group of professors at the University of Missouri-Columbia whose professional and experiential familiarity with African culture might give us insights on remedies to that absence both in general and with specific regard to the Spanish language and literature classroom . Arizona Journal of Hispanic Cultural Studies Volume 8, 2004 206 Arizona Journal of Hispanic Cultural Studies MU: Tell us first what your role is at the University and describe the courses you teach that focus on Africa either as the main target of the course or as a specific unit within a course. Chris Okonkwo (CO) (English, African, and African-American Literature): I teach twentieth -century Anglophone African literature and Afro-American literature with emphasis on the novel. I have taught "Literature of the Black Diaspora: The Mystical as Theme and Model" and "The Colonial Encounter: Major African Authors" concentrating on Chinua Achebe. I also teach "African American Literature of the Twentieth Century." Most of these are Afro-centered, but not all. Some are topics courses dealing with world issues. Margaret Olsen (MO) (Spanish, Colonial Latin American Litetature): Due to the exigencies of our department I teach courses predominantly in Spanish language and literature , thus there is not a great deal of opportunity to deal exclusively with African themes. But my research deals entirely with runaways and the African presence during the first two centuries of colonization of Latin America. In terms of undergraduate coût ses, I try to incorporate works of the African diaspora into our introductory Hispanic literature courses, "Latin American Minority Women Writers in Translation ," "Afro-Latin American and Indigenous Writing," and in seminars on colonial litetature in which I incorporate my research on Alonso de Sandoval, letters and chronicles of conquest. MU: For the last four years or so I have had a growing interest in the African presence in Spain and Spain in Africa as a research focus as well as a theme (one of many) in my undergraduate classes, particularly Peninsular Spanish civilization. Rangira Bea Gallimore (BG) (French, African Francophone Literature): I teach French language and literature. My focus on Africa is in two geographical areas: Sub-Saharan Africa and the Mahgreb. I incorporate African themes into our civilization and culture course. Also, in our undergraduate composition coutse, we analyze a work of literature, so I choose to analyze a novel, Une si kngue lettre, by an African woman writer from Senegal, Mariama Ba. Since Francophone literature from Africa is my primary area of research, in virtually all of my graduate seminars I deal with related issues. JuanamarÃ-a Cordones Cook (JC) (Spanish, Latin American, and Afro-Hispanic Literature ): I teach contemporary Latin American literature. I started doing research on Afro-Hispanic literature when I discovered a great deal of activity in my native Uruguay in the area of theatet. Soon after this research I met Nancy Morejón and thus began very timidly to incorporate her writing in the courses I taught, surveys etc., until finally my timidity vanished and I started teaching and researching almost exclusively in Afro-Hispanic literature. I regularly incorporate a lot of this research in a course in English I teach for rhe Honors College, "Emerging Canons of the Americas ." This coming semester I am teaching a graduate seminar on the works of Nancy Morejón. Pedagogical Perspectives 207 Cristina RodrÃ-guez Cabrai (CR) (PhD in Spanish, 2004, Afro-Uruguayan poet, specialist in the narratives of Manuel Zapata Olivella): I am a graduate student in Spanish literature. This department's interest in Afro-Hispanic literature is the reason I'm here. I have experience conducting workshops on Afro-Hispanic literature in my native Uruguay and in Brazil. These were summer courses for graduate students...

Issue Ownership and Presidential Campaigning, 1952–2000

Journal Article Issue Ownership and Presidential Campaigning, 1952–2000 Get access John R. Petrocik, John R. Petrocik JOHN R. PETROCIK is a professor and chair of the Political Science Department at the University of Missouri-Columbia. He works in the area of elections, public opinion, and political parties. This paper is adapted from a book-length project on issue-ownership in American national politics. Search for other works by this author on: Oxford Academic Google Scholar William L. Benoit, William L. Benoit WILLIAM L. BENOIT is a professor of communication at the University of Missouri-Columbia. He has written five books on presidential campaigns, including Campaign 2000: A Functional Analysis of Presidential Campaign Discourse. He is currently the editor of the Journal of Communication. Search for other works by this author on: Oxford Academic Google Scholar Glenn J. Hansen Glenn J. Hansen GLENN J. HANSEN is a doctoral candidate in the department of communication at the University of Missouri-Columbia. His research focuses on the social influence of mass media. Search for other works by this author on: Oxford Academic Google Scholar Political Science Quarterly, Volume 118, Issue 4, Winter 2003, Pages 599–626, https://doi.org/10.1002/j.1538-165X.2003.tb00407.x Published: 15 February 2013

The Supermarket “Market” Phenomenon in Developing Countries: Implications for Smallholder Farmers and Investment

American Journal of Agricultural EconomicsVolume 85, Issue 5 p. 1162-1163 Principal Paper Session The Supermarket “Market” Phenomenon in Developing Countries: Implications for Smallholder Farmers and Investment Joyce Cacho, Joyce Cacho Global Food & Agricultural Policy Specialist Rabobank International's Food & Agribusiness Research Department, New York, NYSearch for more papers by this author Joyce Cacho, Joyce Cacho Global Food & Agricultural Policy Specialist Rabobank International's Food & Agribusiness Research Department, New York, NYSearch for more papers by this author First published: 01 December 2003 https://doi.org/10.1111/j.0092-5853.2003.00523.xCitations: 8 Dr. Cacho received her Ph.D. from the University of Missouri-Columbia. The views expressed are entirely her own. This article was presented in a principal paper session at the AAEA annual meeting (Montreal, Quebec, July 2003). The articles in these sessions are not subjected to the journal's standard refereeing process. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume85, Issue5December 2003Pages 1162-1163 RelatedInformation

When A. Rose Is Not A. Rose

Creation of a faculty database is a challenging but worthwhile project. In 2002, librarians at the University of Missouri-Columbia were approached by the School of Medicine to create a database of faculty publications. This article outlines the project and gives special emphasis to the problems of author searching. Discussion items include author searching syntax and providing ideas for how to determine if a publication was written by a particular author.

A process for aligning performance improvement resources and strategies

Performance ImprovementVolume 42, Issue 7 p. 9-17 Article A process for aligning performance improvement resources and strategies Ryan Watkins, Ryan Watkins Ryan Watkins, PhD, is Professor of Educational Technology Leadership at George Washington University in Washington, D.C. His teaching and research interests include needs assessment, distance education, and instructional design. Having published more than 35 articles on needs assessment, distance education, strategic planning, instructional design, and related topics, he is also a coauthor of Useful Educational Results (2001, Proactive Publications), Strategic Planning for Success (2003, Jossey-Bass), and E-learning Companion: A Student's Guide to Online Success (2003, Houghton Mifflin). He may be reached at rwatkins@gwu.edu or http://www.ryanwatkins.com.Search for more papers by this authorJohn Wedman, John Wedman John Wedman, PhD, is Director of the School of Information Science & Learning Technologies at the University of Missouri-Columbia. His teaching and research interests are in instructional design and innovation adoption. In addition to more than 20 years' experience in K-12 and higher education settings, he has considerable experience in the private sector, conducting needs assessments, designing and developing technical skill and management process courses, and evaluating training programs for associations, businesses, and government agencies. He may be reached at wedmanjf@showme.missouri.edu.Search for more papers by this author Ryan Watkins, Ryan Watkins Ryan Watkins, PhD, is Professor of Educational Technology Leadership at George Washington University in Washington, D.C. His teaching and research interests include needs assessment, distance education, and instructional design. Having published more than 35 articles on needs assessment, distance education, strategic planning, instructional design, and related topics, he is also a coauthor of Useful Educational Results (2001, Proactive Publications), Strategic Planning for Success (2003, Jossey-Bass), and E-learning Companion: A Student's Guide to Online Success (2003, Houghton Mifflin). He may be reached at rwatkins@gwu.edu or http://www.ryanwatkins.com.Search for more papers by this authorJohn Wedman, John Wedman John Wedman, PhD, is Director of the School of Information Science & Learning Technologies at the University of Missouri-Columbia. His teaching and research interests are in instructional design and innovation adoption. In addition to more than 20 years' experience in K-12 and higher education settings, he has considerable experience in the private sector, conducting needs assessments, designing and developing technical skill and management process courses, and evaluating training programs for associations, businesses, and government agencies. He may be reached at wedmanjf@showme.missouri.edu.Search for more papers by this author First published: 08 February 2007 https://doi.org/10.1002/pfi.4930420704Citations: 3 AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Citing Literature Volume42, Issue7August 2003Pages 9-17 RelatedInformation

FULLY NONLINEAR MODELING AND ANALYSIS OF PRECISION MEMBRANES

International Journal of Computational Engineering ScienceVol. 04, No. 01, pp. 19-65 (2003) No AccessFULLY NONLINEAR MODELING AND ANALYSIS OF PRECISION MEMBRANESP. FRANK PAI and LEYLAND G. YOUNGP. FRANK PAIDepartment of Mechanical and Aerospace Engineering, University of Missouri-Columbia, Columbia, MO 65211, USA Search for more papers by this author and LEYLAND G. YOUNGDepartment of Mechanical and Aerospace Engineering, University of Missouri-Columbia, Columbia, MO 65211, USA Search for more papers by this author https://doi.org/10.1142/S1465876303000788Cited by:4 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail AbstractHigh precision membranes are used in many current space applications. This paper presents a fully nonlinear membrane theory with forward and inverse analyses of high precision membrane structures. The fully nonlinear membrane theory is derived from Jaumann strains and stresses, exact coordinate transformations, the concept of local relative displacements, and orthogonal virtual rotations. In this theory, energy and Newtonian formulations are fully correlated, and every structural term can be interpreted in terms of vectors. Fully nonlinear ordinary differential equations (ODEs) governing the large static deformations of known axisymmetric membranes under known axisymmetric loading (i.e., forward problems) are presented as first-order ODEs, and a method for obtaining numerically exact solutions using the multiple shooting procedure is shown. A method for obtaining the undeformed geometry of any axisymmetric membrane with a known inflated geometry and a known internal pressure (i.e., inverse problems) is also derived. Numerical results from forward analysis are verified using results in the literature, and results from inverse analysis are verified using known exact solutions and solutions from the forward analysis. Results show that the membrane theory and the proposed numerical methods for solving nonlinear forward and inverse membrane problems are accurate.Keywords:Nonlinear membrane theorynumerically exact analysis References M. Salama , M. Lou and H. Fang , Proceedings of the AIAA Structures, Structural Dynamics and Materials Conference ( 2000 ) . Google Scholar M. S. Smith , R. S. Schallenkamp and L. G. Seely , AIAA International Balloon Technology Conference . Google Scholar D. Gorinevsky , T. Hyde and C. Cabuz , Proceedings of the AIAA Structures, Structural Dynamics and Materials Conference ( 2001 ) . Google Scholar V. Firt , Statics, Formfinding and Dynamics of Air-Supported Membrane Structures ( Martinus Nijhoff Publishers , Boston , 1983 ) . Google Scholar A. L. Palisoc, Inflatable Reflector Development Program, Task 3 Report, L'Garde Technical Report, LTR-94-AP-008, 1994 . Google Scholar S. V. Damle et al. , AIAA International Balloon Technology Conference . Google ScholarP. F. Pai, A. N. Palazotto and J. M. Greer Jr., Comput. Struct. 66, 823 (1998), DOI: 10.1016/S0045-7949(98)00004-2. Crossref, Google Scholar H. Furuya and Y. Kawasaki , Proceedings of the AIAA Structures, Structural Dynamics and Materials Conference . Google Scholar G. Greschik , M. M. Mikulas and A. Palisoc , Proceedings of the AIAA Structures, Structural Dynamics and Materials Conference ( 1998 ) . Google ScholarJ. Ruze, Proceedings of the IEEE 54, 633 (1966), DOI: 10.1109/PROC.1966.4784. Crossref, Google Scholar A. Palisoc et al. , Fifth SPIE Conference on Space Telescopes and Instruments . Google ScholarP. F. Pai and A. H. Nayfeh, Nonlinear Dynamics 6, 459 (1994). Crossref, Google ScholarP. F. Pai and A. N. Palazotto, J. Eng. Mech. 121, 568 (1995), DOI: 10.1061/(ASCE)0733-9399(1995)121:4(568). Crossref, Google ScholarP. F. Pai and A. H. Nayfeh, Nonlinear Dynamics 2, 445 (1991), DOI: 10.1007/BF00045438. Crossref, Google Scholar K. Washizu , Variational Methods in Elasticity & Plasticity , 3rd edn. ( Pergamon Press Inc , New York , 1982 ) . Google ScholarP. F. Pai and A. N. Palazotto, Int. J. Solids Struct. 32, 3047 (1995), DOI: 10.1016/0020-7683(94)00273-Y. Crossref, Google Scholar H. Golden , T. W. Strganac and R. A. Schapery , AIAA International Balloon Technology Conference ( 1997 ) . Google Scholar J. Stoer and R. Bulirsch , Introduction to Numerical Analysis ( Springer-Verlag , New York , 1980 ) . Crossref, Google Scholar FiguresReferencesRelatedDetailsCited By 4Analytical Investigation of Dynamics of Inflatable Parabolic Membrane ReflectorFushou Liu and Dongping Jin1 Jan 2015 | Journal of Spacecraft and Rockets, Vol. 52, No. 1A point collocation method for geometrically nonlinear membranesKyle F. Kolsti and Donald L. Kunz1 Jan 2013 | International Journal of Solids and Structures, Vol. 50, No. 2Numerical and experimental dynamic characteristics of thin-film membranesLeyland G. Young, Suresh Ramanathan, Jiazhu Hu and P. Frank Pai1 May 2005 | International Journal of Solids and Structures, Vol. 42, No. 9-10Modeling, Analysis and Testing of some Deployable/Inflatable StructuresPerngjin Pai and Leyland Young26 June 2012 Recommended Vol. 04, No. 01 Metrics History Received 26 August 2002 Accepted 4 November 2002 KeywordsNonlinear membrane theorynumerically exact analysisPDF download

The Region 4 Collaborative Virtual Reference Project

In May 2002, the Denison Memorial Library at the University of Colorado Health Sciences Center and the J. Otto Lottes Health Sciences Library at the University of Missouri-Columbia, with funding from the National Network of Libraries of Medicine-Midcontinental Region, embarked on a collaborative, real-time reference project using the 24/7 Reference, Inc., software package. This paper describes how the project was conceived, and includes details on the service hours, staffing, training, marketing, lessons learned, and future plans for the service.

Utilizing Federal Funds for Experiential Education: The Job Location and Development Program

The way in which the government defines "financial need" does not always account for the individual decisions families make when sending a student to college. Many students who do not qualify for federal financial aid must still pay for part of their educational expenses, and need a part-time job in order to do so. The Job Location and Development (JLD) program was designed to help these students find the employment they need, to pick up where federal work study leaves off. Since 1979, the MU Career Center and the Office of Student Financial Aid at the University of Missouri-Columbia have together operated a JLD program on campus that, since its inception, has helped more than 25,000 students find employment while in school. Those employment opportunities serve to not only assist students in funding their education, but also to provide students the opportunity to learn about themselves—their strengths and weaknesses, their career interests, perhaps what major they ought to choose—as well as valuable skills they can use after graduation.

The Good, the Bad, and the Ugly: Developing Placement Services for Liberal Arts Undergraduates

In Fall 2002, the University of Missouri-Columbia began a new initiative to develop placement services for liberal arts students. Placement services had never before been offered to this student population and the MU Career Center was designated as the principal creator, administrator and provider of these career services. The Career Center staff decided the most effective approach would be to develop a strategic plan that reflected the needs, values, and desires of our faculty, student, and employer constituents. We conducted an environmental scan, collected substantial data and gathered campus feedback. After careful analysis, we developed a dynamic and responsive strategic plan that would meet our goals and achieve success with our financial, organizational, and human resources in mind.