Ponca City Research Articles

Classifying Crop Types Using Two Generations of Hyperspectral Sensors (Hyperion and DESIS) with Machine Learning on the Cloud

Advances in spaceborne hyperspectral (HS) remote sensing, cloud-computing, and machine learning can help measure, model, map and monitor agricultural crops to address global food and water security issues, such as by providing accurate estimates of crop area and yield to model agricultural productivity. Leveraging these advances, we used the Earth Observing-1 (EO-1) Hyperion historical archive and the new generation DLR Earth Sensing Imaging Spectrometer (DESIS) data to evaluate the performance of hyperspectral narrowbands in classifying major agricultural crops of the U.S. with machine learning (ML) on Google Earth Engine (GEE). EO-1 Hyperion images from the 2010–2013 growing seasons and DESIS images from the 2019 growing season were used to classify three world crops (corn, soybean, and winter wheat) along with other crops and non-crops near Ponca City, Oklahoma, USA. The supervised classification algorithms: Random Forest (RF), Support Vector Machine (SVM), and Naive Bayes (NB), and the unsupervised clustering algorithm WekaXMeans (WXM) were run using selected optimal Hyperion and DESIS HS narrowbands (HNBs). RF and SVM returned the highest overall producer’s, and user’s accuracies, with the performances of NB and WXM being substantially lower. The best accuracies were achieved with two or three images throughout the growing season, especially a combination of an earlier month (June or July) and a later month (August or September). The narrow 2.55 nm bandwidth of DESIS provided numerous spectral features along the 400–1000 nm spectral range relative to smoother Hyperion spectral signatures with 10 nm bandwidth in the 400–2500 nm spectral range. Out of 235 DESIS HNBs, 29 were deemed optimal for agricultural study. Advances in ML and cloud-computing can greatly facilitate HS data analysis, especially as more HS datasets, tools, and algorithms become available on the Cloud.

Bob Bilyeu Camblin: An Iconoclast in Houston's Emerging Art Scene by Sandra Jensen Rowland

Reviewed by: Bob Bilyeu Camblin: An Iconoclast in Houston's Emerging Art Scene by Sandra Jensen Rowland Caleb Bell Bob Bilyeu Camblin: An Iconoclast in Houston's Emerging Art Scene. By Sandra Jensen Rowland. (Denton: University of North Texas Press, 2020. Pp. 320. Illustrations, notes, references, index.) Written by art historian Sandra Jensen Rowland, this monograph chronicling the life and art of the late Houston artist Bob Camblin offers readers a true insider's look into a complex individual's world. Rowland, a former student of Camblin's as well as his one-time companion, provides an intimate account of much of his life while also discussing the evolution of his art and placing it within larger artistic movements. Laid out chronologically, the twenty-one-chapter biography opens with the artist's upbringing in Ponca City, Oklahoma. Despite touching on his hometown community, its influential individuals, and various related occurrences, however, personal details about Camblin's rearing are somewhat lacking. But Rowland does a good job of discussing major international events and their impact on him, a shining hallmark found throughout the book. The Great Depression and World War II establish the framework for Camblin's trajectory. The real look into his life begins in 1947, when the artist joined the army. His military service, enrollment at the Kansas City Art Institute, a Fulbright-sponsored year in Italy, and introduction to academia at the Universities of Illinois and Utah preceded his move to Texas in the 1960s, a significant event in his life and career. Camblin accepted a position with [End Page 478] the art department at Rice University in Houston and joined artists John O'Neil, David G. Parsons, and Earl Staley. His connection to Staley was almost instant. Even though they only worked together at Rice for a year, Camblin remained in Houston through the 1980s, and the two remained longtime collaborators, forming B&E Productions, B, E & J Productions, and the Holding Firm. Their relationship is well documented, and Rowland includes Staley's insightful words about Camblin in the book's epilogue. It was also during Camblin's stint at Rice University that he and Rowland, a student at the time, first met. She describes her firsthand experiences with the artist, including the end of their relationship, offering readers information only she could. Mentored herself by Dominque de Menil during the 1970s, Rowland expands readers' view of the Houston art scene at the time and aptly describes Camblin's position in it. The book also offers insights into his relationships with various Texas artists and key players as well pivotal exhibitions. It discusses in some depth his connection to Penny Cerling and Dave Folkman of Little Egypt Enterprises, the now-defunct printmaking studio. The inclusion of a thorough timeline provides a succinct overview of Camblin's major exhibitions and life events. The author's notes are a great resource as well, offering interested readers even more details and facts. While the book could benefit from more imbedded images or an additional appendix of artworks, those provided do a good job of illustrating the narrative and providing a sense of Camblin's artistic evolution. The image selection, much like Rowland's text, offers a nice balance between his art and personal life. Her writing style is accessible and guides one through Camblin's story, including his cast of alter egos, with ease. Overall, the book serves as a detailed account of the life and times of Bob Bilyeu Camblin, an iconoclast, as the book's title says, in Houston's emerging art scene. Caleb Bell Tyler Museum of Art Copyright © 2021 The Texas State Historical Association

Horseweed (Conyza canadensis) management in Oklahoma winter wheat

AbstractHalauxifen plus florasulam, thifensulfuron plus fluroxypyr, and bromoxynil plus bicyclopyrone are three, relatively new POST premix herbicides developed for control of broadleaf weeds in winter wheat. These herbicides, along with older products, were evaluated for their control of horseweed in Altus, Perkins, and Ponca City, Oklahoma, during the spring of 2017 and 2018. Horseweed has become a critical weed in Oklahoma because of its extensive germination window, changes in tillage practices, and increase in herbicide-resistant horseweed biotypes. Visual weed control was estimated every 2 wk throughout the growing season and wheat yield was collected from three of the six site-years. Horseweed size ranged from 5 to 20 cm at time of application. The halauxifen plus florasulam, and thifensulfuron plus fluroxypyr combinations were effective at controlling a wide range of horseweed rosette sizes across all locations, whereas control with other treatments varied depending on presence of herbicide resistance, weed size at time of application, and mix partner.

Forty years on the fenceline: community, memory, and chronic contamination

ABSTRACTResidents living next to polluting industries are particularly vulnerable to toxic exposures and environmental illness. Cases of industrial contamination are shrouded in ambiguity and etiological uncertainty, making it difficult to delineate how residents understand their exposure and illness experiences. We analyze the case of Ponca City, Oklahoma to examine how residents’ collective memories and shared narratives inform their interpretations of long-term petrochemical exposure over a period of 40 years. The data for this project include: oral histories with residents; local media coverage regarding the contamination; and archival documents and artifacts that spanned this time frame. Our historical analysis of the case provides insights into how residents relied on lay ways of knowing to make sense of their exposure and illness experiences over time. We conclude by discussing the utility of examining collective memory in communities facing longstanding contamination and illness.

Ponca City Cogeneration Plant: Model Improvement and Final Decision

This case follows up on the previous Ponca City case, addressing two classic flaws in spreadsheets of pro forma cash flows: (1) the treatment of the terminal value of the plant, and (2) the consistency of the assumptions about inflation. Excerpt UVA-QA-0747 June 30, 2010 PONCA CITY COGENERATION PLANT: MODEL IMPROVEMENT AND FINAL DECISION The base-case spreadsheet from Robert Patrick James was used by members of the project team to study the cogeneration plant project. The numbers it produced suggested that the project looked good to Oklahoma Gas & Electric (OGE the net benefit was a positive $ 1,020 thousands to Natoco. In a meeting about the project, a project analyst commented: “If we don't make it more attractive for Natoco to want us to build it, then they will simply do it themselves. What can we do?” James responded: . . .

Gaussian Dispersion Model to Estimate the Dispersion of Particulate Matters (Pm<sub>2.5</sub>) and Sulfur Dioxide (So<sub>2</sub>) Concentrations on Tribal Land, Oklahoma

Air quality in most parts of Kay County is good and unlikely to cause major health problems. However, Kaw Nation wants to know if the concentration of Particulate matters (PM2.5) and Sulfur dioxide (SO2) released from power plants, refinery and carbon black plant in Oklahoma reaches the Tribal land at Kanza Travel Plaza, Braman, Kay Co. Oklahoma. Kanza Travel Plaza is located in the north central Oklahoma 22 miles Northwest of Ponca City at a latitude of 36.9395 degrees North and longitude of -97.3453 degrees West. In order to estimate the concentration of PM2.5 and SO2 that reaches the Tribal land, Kaw Nation run the U.S. Environmental Protection Agency regulatory air quality model called AERMOD (Version 15181). AERMOD is a steady state plume model that measures dispersion of gases and particulate matters from the source to the point of impact within source radius. The study sites are flat and rural conditions with less complex terrain. Meteorological data representative of the study area was preprocessed using AERMET program. AERMET prepares hourly surface data and upper air data. The hourly surface data was obtained from Station #3965 (Stillwater Regional), while the upper air data was obtained from Station #3948 (Norman). The Building parameters such as height and length were processed using the building profile called BPIB. To calculate the concentration of PM2.5 and SO2 air pollutants released from the coal power plant the Gaussian air molding (AERMOD) used Control, Source, Receptor, Metrological and Output pathways. The AERMOD result indicates at least 19-26% of PM2.5 and SO2 released from the stacks of the power plants, refinery and carbon black plant into the atmosphere reaches the Tribal land. Based on the Gaussian air modeling (AERMOD and BAM 1020 Continuous Air monitor) less than 12 µg/m3 of pollutant has been captured that falls within the attainment zone as per the National Ambient Air Quality Standards (NAAQS).

SEDIMENT CORE SAMPLING AND ANALYSIS OF KAW LAKE

The Kaw Nation and Black land Research Center in July 2012 conducted a sediment core sampling from Kaw Lake. Kaw Lake is a reservoir constructed in 1976 by the Army Corps of Engineers for the purpose of water supply and recreation. It is locat ed 11 miles east of Ponca City, Kay County, Oklahoma. This reservoir covers approximately 17,040 acres (69 km 2 ) and is also known to be the seventh largest lake in Oklahoma by surface area. T his lake holds 428,600 acre feet (528,700, 00 m 3 ) of water which is said to be the ninth largest lake in Oklahoma. The lake is fed by the Arkansas River that flows from Colorado, through kansas and into K aw Lake. The Arkansas River flows through Kaw Lake shared by several small creeks and empties int o the Mississippi River. The purpose of the study was to determine the rate of sediment accumulation and examine the level of nutrient and heavy metals accumulation or deposition at the bottom of the lak e. Four core samples from different parts of the la ke at different depth were sampled for analysis. Each cor e sample was sectioned into 20 cm, dried and ground into homogenous powder. Samples from each section were tested for organic carbon content and heavy metals. Organic carbon content was verified by burn ing through a muffle furnace, while the remaining core samples were digested into a solution and ran through an Atomic Absorption Spectrophotometer (AAS) to evaluate the concentration of heavy metals . Particle size analyses were also determined. Results were organized by depth, concentration, par ticle size distribution and bulk density. Data show ed phosphorous and some heavy metals concentrations at core 3 and 4 were higher than core 1 and 2. Phosphorous concentration at four sediment core sit es ranged from 350 mg kg -1 to 550 mg kg -1 . Whereas Aluminum concentration was 40,000 mg kg -1 to 70,000 mg kg -1 , Barium 280 mg kg -1 to 420 mg kg -1 , manganese 600 mg kg -1 to 710 mg kg -1 , iron 30,000 mg kg -1 to 48,000 mg kg -1 are few to be cited. Bulk density, a measure of soil mass per uni t of volume of soil in a water increased with water depth as the water content decreased.

Ponca City Cogeneration Plant Supplement

Ponca City Cogeneration Plant Supplement

Rotational Cropping Systems to Reduce Cheat (Bromus secalinus) Densities

In the Southern Great Plains, producers of hard red winter wheat seek sustainable methods for controlling cheat and improving economic returns. Experiments were conducted at two sites in north-central Oklahoma to determine the effect of cheat management programs, with various weed control strategies, on cheat densities and total net returns. The cheat management programs, initiated following harvest of winter wheat, included conventionally tilled, double-crop grain sorghum (Sorghum bicolorL.) followed by soybean (Glycine maxL.); and continuous winter wheat. Rotating out of winter wheat for one growing season increased yield of succedent wheat up to 32% and 42% at Billings and Ponca City, respectively. Dockage due to cheat in the succedent wheat was reduced up to 78% and 87% by rotating out of winter wheat for one growing season at Billings and Ponca City, respectively. Cheat management programs including a crop rotation with herbicides applied to the grain sorghum, except for an application of atrazine + metolachlor at Ponca City, improved total net returns over the nontreated continuous wheat option. Cheat panicles in the succedent wheat were reduced up to 87% by rotation out of winter wheat for one growing season.

Ponca City Cogeneration Plant Supplement

This supplement to Ponca City Cogeneration Plant (UVA-QA-0469) provides information on the various factors that contribute to the risk of the project. An electric utility faces the hard choice between losing its third-largest customer and building a cogeneration plant that is very risky and appears to take value away from the firm. Students must first assess the utility's strategic position and the magnitude of the risk, in the process improving the assumptions of the discounted-cash-flow spreadsheet model available to them. The task is then to be shrewd and creative in reducing and managing the risk of the project, which, after all, is manageable.

A brief history of seismic migration

In this article, I attempt to focus on the chronology of seismic imaging. I start in the mid-1920s, progress through the human “computer”-based methods of the 1940s and 1950s, discuss the emergence of digital wave-equation technology in the 1960s and early 1970s, and finally end with a review of the present. I include a bit of speculation about the future of seismic imaging, but the meat of the article is on seismic-imaging history. Based on the timing of their publications, I claim there are three key contributors to the theoretical developments of modern seismic imaging: F. Rieber, J. G. Hagedoorn, and J. F. Claerbout. None of these men were the first to consider the seismic-imaging problem, but their papers and algorithms have probably been quoted more often than anyone else's. One certainly must give credit as well to C. H. Dix and M. M. Slotnick for similar contributions. Other names that come to mind include Hans Sattlegger in Germany, A. J. Berkhout in the Netherlands, Bill Schneider at GSI in Dallas, and Robert Stolt at CONOCO in Ponca City, Oklahoma. However, without the independent computational progression predicted by Moore's law (computer speed doubles every 18 months), the spectacular subsurface images produced today would not be possible. I hope to convince the reader that in addition to the development of the vast literature on seismic-imaging theory, another, less-publicized, parallel technological progression has focused on the development of efficient machines to produce, with minimal human intervention, an increasingly more accurate image of the strata below the recording instruments. Unfortunately, with a few key exceptions, the names of many of the contributors to this aspect of seismic imaging have been lost. The digital revolution in the 1960s appears to be the culmination of this attempt at mechanization, but not until the development of truly powerful scientific computers did the more accurate and advanced theoretical developments in seismic-imaging theory become practical to apply and use in the search for diminishing supplies of hydrocarbons. In fact, one can argue that we still don't have sufficient computer power to do everything we need and want to do. But that's another story.

Simulating energy and carbon fluxes over winter wheat using coupled land surface and terrestrial ecosystem models

Coupled land surface and terrestrial ecosystem models are used to simulate energy and carbon fluxes over winter wheat at the Ponca City, Oklahoma, Ameriflux site. The terrestrial ecosystem model consists of photosynthesis and respiration (autotrophic and heterotrophic) sub-modules, which uses canopy temperature, soil moisture, and soil temperature simulated by the land surface scheme. The photosynthesis sub-module, which provides an estimate of canopy conductance to the land surface scheme, is designed to use both the big- and the two-leaf (sunlit/shaded) approaches, and canopy conductance formulations based on both relative humidity and vapor pressure deficit. This provides a tool to test the sensitivity of model results to these two different approaches of modeling photosynthesis and stomatal conductance. Model results for carbon and energy fluxes compare well with observations over the growing season of 1997, especially with the use of the two-leaf model and stomatal conductance formulation based on vapor pressure deficit. Averaged over the growing season, the model results suggest that for this particular site, the difference in simulated latent heat fluxes caused by the choice of the photosynthesis approach (big- or two-leaf) is smaller (∼1%) than the difference caused by the choice of the stomatal conductance formulation (∼10%). In regard to the carbon fluxes, averaged over the growing season and compared with the two-leaf model, the simulated net photosynthesis rate and net ecosystem exchange flux are about 5 and 18% higher, respectively, for the big-leaf model. It is shown that comparisons with both observed energy and carbon fluxes are necessary to constrain model behavior and test its performance adequately.

Last Hope

Ad Libitum20 November 2001Last HopeH J. Van Peenen, MDH J. Van Peenen, MDPonca City, OK 74604Search for more papers by this authorAuthor, Article, and Disclosure Informationhttps://doi.org/10.7326/0003-4819-135-10-200111200-00015 SectionsAboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinkedInRedditEmail Heart, the capital city, when informedthat death was at the palace gates,hauled his standard down.He could no longer count on his defenders,those lounging bodyguards, lungs, kidneys, eyes,already conniving to remain alive.Go! May young ... Author, Article, and Disclosure InformationAffiliations: Ponca City, OK 74604Corresponding Author: H.J. Van Peenen, MD, 1414 East Hartford, Unit #9, Ponca City, OK 74604. PreviousarticleNextarticle Advertisement FiguresReferencesRelatedDetails Metrics 20 November 2001Volume 135, Issue 10Page: 926KeywordsBrainCardiovascular therapyCorneaHeartHeart diseasesKidneysLungsOxygenSleep ePublished: 20 November 2001 Issue Published: 20 November 2001 Copyright & PermissionsCopyright © 2001 by American College of Physicians. All Rights Reserved.PDF downloadLoading ...

Fused Chemical Reactions: The Use of Encapsulation to Control the Temperature Profile in Tubular Reactors

Chemie Ingenieur TechnikVolume 73, Issue 6 p. 763-764 Article Fused Chemical Reactions: The Use of Encapsulation to Control the Temperature Profile in Tubular Reactors D. A. Nguyen, D. A. Nguyen Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109Search for more papers by this authorS. C. Tsai, S. C. Tsai Production Technology, Conoco Inc., Ponca City, Oklahoma 74602Search for more papers by this authorH. S. Fogler, H. S. Fogler Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109Search for more papers by this author D. A. Nguyen, D. A. Nguyen Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109Search for more papers by this authorS. C. Tsai, S. C. Tsai Production Technology, Conoco Inc., Ponca City, Oklahoma 74602Search for more papers by this authorH. S. Fogler, H. S. Fogler Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109Search for more papers by this author First published: 12 July 2001 https://doi.org/10.1002/1522-2640(200106)73:6<763::AID-CITE7633333>3.0.CO;2-4AboutPDF 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 onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume73, Issue6Juni 2001Pages 763-764 RelatedInformation

Two Oklahoma City Disasters: The Oklahoma City Bombing and the Tornadoes—A Blood Bank Perspective

In this article, I review how the Oklahoma Blood Institute (OBI) responded to 2 disasters: the bombing of the Alfred P. Murrah Federal Building on April 19, 1995, and the tornadoes that hit Oklahoma City and the surrounding area on May 3, 1999. We learned some important lessons about handling large numbers of donors, transporting blood supplies, planning for future disasters, and helping the public heal. I hope that many of these insights will be useful for the medical community as a whole. OBI has 7 blood centers in the state of Oklahoma: in Oklahoma City, Lawton, Enid, Ada, Ardmore, Tulsa, and Ponca City. OBI supplies blood to about two thirds of the transfusing hospitals in the state (71 institutions). The main center is in Oklahoma City, and each subcenter is 85 to 100 miles away from the main center. The subcenters act independently, except for laboratory testing, component production, and information services, which are centralized in Oklahoma City. Blood, of course, is very important in a disaster. Not only does it allow blood transfusions, which either save lives or improve the quality of life, but it serves as an insurance policy of sorts. Surgeons will not perform operations unless blood is available. Based on that, the blood serves a purpose even if it is never used. When a disaster occurs, no one can estimate how much blood will be needed. Therefore, it is critical to have adequate supplies of blood products on the shelves of the hospitals served and of the blood center itself.

Joy, and: Lies, and: Some Observations While Recovering from Surgery

JOY/Jeff Worley Maybe it's always mixed, like with Sally in 1974, who touched me more tenderly and convincingly than any woman had, then spent half an hour of pillow talk on the Etruscans, the Tarquín kings' iron-hand rule in the latter half of the 6th century. The half pound of licorice whips (I was 7) pulled up two teeth the same afternoon I jerked a snapping turtle from the canal on a cane pole, thrilled until I looked down to see a leech, like a blob of cold liver, sucking my ankle red. Unadulteratedjoy? My friend Lynn and I win the Kansas Juniors Bowling Tournament in '65 and are handed trophies— I'm not exaggerating—the size of salt and pepper shakers. The Missouri Review · 147 He glued his plastic bowler next to his steering wheel, a dashboard Jesus of Bowling, until a banana-yellow Corvette slammed into his Mustang and broke his trophy in two. Bad luck? Well, joy can walk the other side of the street, too: The Vette belonged to one Annette Winthrop Vickers, who took my friend home and asked his forgiveness for two months. The Germans have a word, schadenfreude, for another kind of joy: the evangelist caught with his pants down in the choir loft, or the child molester trapped in the burning Tunnel of Love. . . . To look and have one more look, Lot's wife notwithstanding, is also a kind ofjoy, the slugger whizzing one an inch the wrong side of the foul pole, then settling in the box again. The next pitch is a lollypop in his sweet zone; he tenses his biceps, undercuts the fat curve and like Isabella 148 · The Missouri Review JeffWorley waving Chris Columbus over the horizon watches it sail out of sight. . . . It plops into the glove of Candi McFarland, celebrating her 10th birthday. She can't believe it; she can't believe it! She had her eyes closed! Joy, a small hard sphere, turns now in her hand, a new world she holds up for everyone to see, her glove hand, for weeks, stinging gloriously. JeffWorley The Missouri Review · 149 LIES/JeffWorley Heigho, the tale was all a lie . . . —Housman I admit to the black lie, bending language into necessary form, a glassblower breathing molten glass into whatever shape occasion calls for. And, uncertain or simply forgetful, I've told the blueblack lie, the lie sheathed in something, I tell myself, resembling innocence. And of course the white lie we all trade in: You were brilliant at the meeting. . . . No, really, dear, your butt looks outstanding in those slacL·. I've told the Doberman lie: the lie that clamps down and won't let go. I've told the lie with the grin behind it. I've appropriated entertaining stories and made them my own—a friend's wild tale of outwitting the Ponca City police, mere borrowing I call it, knowing that's a lie too. I've lied with cards, which is permissible. My doctor fields my lies like routine ground balls— all the vegetables and fruits I've been eating lately, the four-mile jog no matter what the weather! I have invented lovers in casual conversation with ex-lovers—have so convincingly counterfeited amorous evenings on nonexistent beaches that perfect pebbles of white sand floated off my tongue with the buoyant lie. . . . But how wonderfully electric to get away with a lie, to Z it into the air like Zorro and watch it shine in the moonlight. How, then, I love the language even more! Hi, boss. I woke up this morning with a cold/theflu/hair lice/a grouchy disposition/Korsakov'sPsychosis/ichthyosis/ a suddenfear ofneckties/a bulimic psyche, and won't be in today. . . . 150 · The Missouri Review If lies were helium balloons, every H&R Block in the land would suddenly float up, linger like a handshake, and rise toward tropopause. The U.S. House of Representatives would zoom up as if shot from a silo. . . . No lies, though, in the torturer's sub-sub-basement damp with rat piss. Shackled to the rack, who among us would stretch the truth? Burrow my eyelids with a pneumatic...

Hafiz Ali goes home.

On Being a Patient1 August 1998Hafiz Ali Goes HomeH.J. Van Peenen, MDH.J. Van Peenen, MDPonca City, OK 74604-2513Search for more papers by this authorAuthor, Article, and Disclosure Informationhttps://doi.org/10.7326/0003-4819-129-3-199808010-00016 SectionsAboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinkedInRedditEmail The Dutch doctor had been with the ECWA hospital at Jos, Nigeria, for a long time, but he still had trouble deciding exactly when a patient would die. And that was always a problem with someone like Hafiz Ali.The doctor had admitted Hafiz Ali and grown fond of him, but he had not yet worked out the pathogenesis of his disease. The spleen, he could feel, was huge, too big for malaria in an adult. And there was a fever that might indeed have been malaria, but no organisms showed on a thick blood smear. Intravenous antibiotics seemed to ... Author, Article, and Disclosure InformationAffiliations: Ponca City, OK 74604-2513Acknowledgment: The author thanks Drs. Steve and Jan Arrow-smith for providing ethnographic details.Corresponding Author: H.J. Van Peenen, MD, 1414 East Hartford, Unit #9, Ponca City, OK 74604-2513. PreviousarticleNextarticle Advertisement FiguresReferencesRelatedDetails Metrics 1 August 1998Volume 129, Issue 3Page: 249-251KeywordsFeversMalariaOilsPathogenesisRunningShouldersSpleenSweatTwinsUrine Issue Published: 1 August 1998 Copyright & PermissionsCopyright © 1998 by American College of Physicians. All Rights Reserved.PDF downloadLoading ...

Evoking the "Holy and the Horrible": Conversations with Joyce Carol Thomas

Joyce Carol Thomas is a poet, novelist, and playwright. Through these three modes of perceiving the world - the poet's spare, sharp-edged wonder; the playwright's cunning orchestration of incident and character; and the novelist's urge to bring us smack-face against life's pain, joy, and recoveries - she evokes dilemmas and struggles which open the way to a better sense of self and often to a glorious personal epiphany. In whatever genre she's keyed to at the moment, Thomas peels back layers of life's complexities by focusing largely on the contradictions, catastrophes, and spiritual triumphs that unfold in a rural African American community. With this community serving as her frame, she constructs lean but expressive portraits of the destructive and redemptive power of love, explores the values and meanings of secular and religious traditions, and lays out stormy initiations for her young black protagonists. Rich in ambiguity and mystery, and steeped in mythical and religious tropes and metaphors, her writing resonates with a wonderfully bracing music. Thomas was born in Ponca City, Oklahoma, the setting for three of her novels: Marked by Fire (1982), Bright Shadow (1983), and The Golden Pasture (1986). Throughout much of her childhood, she was a migrant farm worker, first in Oklahoma and later in the San Joaquin Valley in California, where her family moved when she was ten years old. She traces her love of language and story to the songs and tales of her Mexican co-workers and the expressive rhythms of those who testified at church services. She earned degrees in Spanish and French and taught foreign languages in public schools before pursuing a career as a writer. She has also held positions in English literature and creative writing at Purdue University, the University of California at Santa Cruz, and the University of Tennessee. In the 1970s, Thomas wrote poetry and plays for adults. Critical acclaim began in 1982 with Marked by Fire, her first novel. In addition to the National Book Award for young-adult fiction, Marked by Fire received an American Book Award from the Before Columbus Foundation and Booklist's children's Reviewers Choice Award. The title also was listed on numerous best-book lists, including the New York Times Outstanding Books of the Year and the ALA's Best Books for Young Adults. Bright Shadow, the sequel to Marked by Fire, was named a Coretta Scott King Honor Award Book. Awards and honors have continued. Both A Gathering of Flowers, an anthology of multiethnic and multiracial short stories, which Thomas edited in 1990, and Brown Honey in Broomwheat Tea (1993), a collection of her poems, were among the titles recommended for children and young adults by the National Conference of Christians and Jews. Brown Honey in Broomwheat Tea also received the Coretta Scott King Honor Book Award and was listed as a Notable Children's Book in the Social Studies by the National Council for Social Studies/Children's Book Council joint committee. Joyce Carol Thomas spoke to us by phone from her home in Berkeley, California, in September and December, 1995, and in June, 1996. This interview is a composite of these conversations. Interviewers: Would you share something of your growing up in Oklahoma? Have significant people, events, and places found their way into your writing? Thomas: I grew up in Ponca City, where my family lived on the black side of town. There was a park dividing the black side from the white side, and to get to the white side or downtown you had to walk through that park. For the first several years of my life I rarely went over to that part of town. So you see, this Oklahoma community was a very sheltered place for me. It doesn't surprise me at all that in my writing I am deeply concerned with what happens within a community and how these experiences form a person's vision of the world. The forces within the community interest me more than other circumstances and far more than forces from outside the community. …

Ponca City Native American Foundation Call for Sculptors

"Ponca City Native American Foundation Call for Sculptors." Plains Anthropologist, 40(151), p. 102

Hydrate Occurrence in Multiphase Flowlines

Annals of the New York Academy of SciencesVolume 715, Issue 1 p. 40-58 Hydrate Occurrence in Multiphase Flowlines DALE ERICKSON, DALE ERICKSON Conoco, Inc. Post Office Box 1267 Ponca City, Oklahoma 74602Search for more papers by this authorTRENT BROWN, TRENT BROWN Conoco, Inc. Post Office Box 1267 Ponca City, Oklahoma 74602Search for more papers by this author DALE ERICKSON, DALE ERICKSON Conoco, Inc. Post Office Box 1267 Ponca City, Oklahoma 74602Search for more papers by this authorTRENT BROWN, TRENT BROWN Conoco, Inc. Post Office Box 1267 Ponca City, Oklahoma 74602Search for more papers by this author First published: April 1994 https://doi.org/10.1111/j.1749-6632.1994.tb38822.xCitations: 4AboutPDF 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 Citing Literature Volume715, Issue1Natural Gas HydratesApril 1994Pages 40-58 RelatedInformation