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7,854 Matching Results
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Death on the Lonely Llano Estacado: The Assassination of J. W. Jarrott, a Forgotten Hero
Access:
Use of this item is restricted to the UNT Community
In the winter of 1901, James W. Jarrott led a band of twenty-five homesteader families toward the Llano Estacado in far West Texas, newly opened for settlement by a populist Texas legislature. But frontier cattlemen who had been pasturing their herds on the unfenced prairie land were enraged by the encroachment of these “nesters.” In August 1902 a famous hired assassin, Jim Miller, ambushed and murdered J. W. Jarrott. Who hired Miller? This crime has never been solved, until now. Award-winning author Bill Neal investigates this cold case and successfully pieces together all the threads of circumstantial evidence to fit the noose snugly around the neck of Jim Miller’s employer. What emerges from these pages is the strength of intriguing characters in an engrossing narrative: Jim Jarrott, the diminutive advocate who fearlessly champions the cause of the little guy. The ruthless and slippery assassin, Deacon Jim Miller. And finally Jarrott’s young widow Mollie, who perseveres and prospers against great odds and tells the settlers to “Stay put!”
Date:
July 2017
Creator:
Neal, Bill
Object Type:
Book
System:
The UNT Digital Library
Multiturn injection of EBIS ions in booster
Ions from EBIS are injected into Booster after acceleration by an RFQ and a Linac. The velocity of the ions at Booster injection is c{beta} where c is the velocity of light and (1) {beta} = 0.0655. The kinetic energy is (2) W = mc{sup 2}({gamma}-1) where m is the ion mass and (3) {gamma} = (1-{beta}{sup 2}){sup -1/2}. Putting in numbers one gets a kinetic energy of approximately 2 MeV per nucleon for each ion. The revolution period at injection is 10.276 {micro}s. The ions in the EBIS trap are delivered in a beam pulse that ranges from 10 to 40 {micro}s in length. This amounts to 1 to 4 turns around the machine. The transverse emittance (un-normalized) of EBIS beams just prior to injection into Booster is 11{pi} mm milliradians in both planes. This is an order of magnitude larger than the nominal 1{pi} mm milliradians for Tandem beams. Injection proceeds by means of an electrostatic inflector in the C3 straight section and four programmable injection dipoles in the C1, C3, C7, and D1 straights. These devices have been in use for many years for the injection of ions from Tandem as described in [1] and [2]. The …
Date:
September 1, 2010
Creator:
Gardner, C. J.
Object Type:
Report
System:
The UNT Digital Library
Simulations of Merging and Squeezing Bunches in Booster and AGS
N/A
Date:
September 1, 2012
Creator:
Gardner, C. J.
Object Type:
Report
System:
The UNT Digital Library
Simulations of merging and squeezing bunches in booster and AGS
N/A
Date:
July 30, 2012
Creator:
Gardner, C. J.
Object Type:
Report
System:
The UNT Digital Library
Simulations of RF Capture with Barrier Bucket in Booster at Injections
N/A
Date:
May 1, 2012
Creator:
Gardner, C. J.
Object Type:
Report
System:
The UNT Digital Library
Simulations of RF capture with barrier bucket in booster at injection
As part of the effort to increase the number of ions per bunch in RHIC, a new scheme for RF capture of EBIS ions in Booster at injection has been developed. The scheme was proposed by M. Blaskiewicz and J.M. Brennan. It employs a barrier bucket to hold a half turn of beam in place during capture into two adjacent harmonic 4 buckets. After acceleration, this allows for 8 transfers of 2 bunches from Booster into 16 buckets on the AGS injection porch. During the Fall of 2011 the necessary hardware was developed and implemented by the RF and Controls groups. The scheme is presently being commissioned by K.L. Zeno with Au32+ ions from EBIS. In this note we carry out simulations of the RF capture. These are meant to serve as benchmarks for what can be achieved in practice. They also allow for an estimate of the longitudinal emittance of the bunches on the AGS injection porch.
Date:
January 23, 2012
Creator:
Gardner, C. J.
Object Type:
Report
System:
The UNT Digital Library
FY10 parameters for the injection, acceleration, and extraction of gold ions in booster, AGS, and RHIC
A Gold ion with charge eQ has N = 197 Nucleons, Z = 79 Protons, and (Z-Q) electrons. (Here Q is an integer and e is the charge of a single proton.) The mass is m = au - Qm{sub e} + E{sub b}/c{sup 2} (1) where a = 196.966552 is the relative atomic mass [1, 2] of the neutral Gold atom, u = 931.494013 MeV/c{sup 2} is the unified atomic mass unit [3], and m{sub e}c{sup 2} = .510998902 MeV is the electron mass [3]. E{sub b} is the binding energy of the Q electrons removed from the neutral Gold atom. This amounts to 0.332 MeV for the helium-like gold ion (Q = 77) and 0.517 MeV for the fully stripped ion. For the Au{sup 31+} ion we have E{sub b} = 13.5 keV. These numbers are given in Ref. [4].
Date:
August 1, 2010
Creator:
Gardner, C. J.
Object Type:
Report
System:
The UNT Digital Library
FY08 parameters for the injection, acceleration, and extraction of gold ions and deuterons in the booster, AGS, and RHIC
A Gold ion with charge eQ has N = 197 Nucleons, Z = 79 Protons, and (Z-Q) electrons. (Here Q is an integer and e is the charge of a single proton.) The mass is m = au - Qm{sub e} + E{sub b}/c{sup 2} (1) where a = 196.966552 is the relative atomic mass [1, 2] of the neutral Gold atom, u = 931.494013 MeV/c{sup 2} is the unified atomic mass unit [3], and m{sub e}c{sup 2} = .510998902 MeV is the electron mass [3]. E{sub b} is the binding energy of the Q electrons removed from the neutral Gold atom. This amounts to 0.332 MeV for the helium-like gold ion (Q = 77) and 0.517 MeV for the fully stripped ion. For the Au{sup 31+} ion we have E{sub b} = 13.5 keV. These numbers are given in Ref. [4]. The deuteron mass [3] is 1875.612762(75) MeV/c{sup 2}.
Date:
August 1, 2010
Creator:
Gardner, C. J.
Object Type:
Report
System:
The UNT Digital Library
Parameters for the injection, acceleration, and extraction of gold and copper ions in Booster, AGS, and RHIC
N/A
Date:
November 27, 2012
Creator:
Gardner, C. J.
Object Type:
Report
System:
The UNT Digital Library
Parameters for the injection, acceleration, and extraction of uranium ions in Booster, AGS, and RHIC
N/A
Date:
November 27, 2012
Creator:
Gardner, C. J.
Object Type:
Report
System:
The UNT Digital Library
Simulation of Scraping on the AGS Beam Dump
N/A
Date:
October 28, 2013
Creator:
Gardner, C. J.
Object Type:
Report
System:
The UNT Digital Library
Injection of large transverse emittance EBIS beams in booster
N/A
Date:
November 1, 2011
Creator:
Gardner, C. J.
Object Type:
Report
System:
The UNT Digital Library
Captain W.W. Withenbury's 1838-1842 Red River Reminiscences
Access:
Use of this item is restricted to the UNT Community
A selection of letters written to the Cincinnati Commercial newspaper from 1870-1871 about steamboat travel on the Red River in 1838-1841. W. W. Withenbury was a famous river boat captain during the mid-1800s. In retirement, he wrote a series of letters for the Cincinnati Commercial, under the title "Red River Reminiscences." Jacques Bagur has selected and annotated 39 letters describing three steamboat voyages on the upper Red River from 1838 to 1842. Withenbury was a master of character and incident, and his profiles of persons, including three signers of the Texas Declaration of Independence, reflect years of acquaintance. The beauty of his writing ranks this among the best of the reminiscences that were written as the steamboat era was declining. “Bagur is an expert on the Red River in the nineteenth century, and it shows in this work. Informative and entertaining.” —Randolph B. "Mike" Campbell, author of Gone to Texas: A History of the Lone Star State “This will rank as a great assistance to researchers if anyone wants to attack history of the Red River again. Some of his in-depth research was fabulous.”—Skipper Steely, author of Red River Pioneers
Date:
April 2014
Creator:
Bagur, Jacques D.
Object Type:
Book
System:
The UNT Digital Library
Bioinformatics for Microbial Genotyping of Equine Encephalitis Viruses, Orthopox Viruses, and Hantaviruses
None
Date:
August 8, 2011
Creator:
Gardner, S N & Jaing, C J
Object Type:
Article
System:
The UNT Digital Library
Pair Production Constraints on Superluminal Neutrinos Revisited
We revisit the pair creation constraint on superluminal neutrinos considered by Cohen and Glashow in order to clarify which types of superluminal models are constrained. We show that a model in which the superluminal neutrino is effectively light-like can evade the Cohen-Glashow constraint. In summary, any model for which the CG pair production process operates is excluded because such timelike neutrinos would not be detected by OPERA or other experiments. However, a superluminal neutrino which is effectively lightlike with fixed p{sup 2} can evade the Cohen-Glashow constraint because of energy-momentum conservation. The coincidence involved in explaining the SN1987A constraint certainly makes such a picture improbable - but it is still intrinsically possible. The lightlike model is appealing in that it does not violate Lorentz symmetry in particle interactions, although one would expect Hughes-Drever tests to turn up a violation eventually. Other evasions of the CG constraints are also possible; perhaps, e.g., the neutrino takes a 'short cut' through extra dimensions or suffers anomalous acceleration in matter. Irrespective of the OPERA result, Lorentz-violating interactions remain possible, and ongoing experimental investigation of such possibilities should continue.
Date:
February 16, 2012
Creator:
Brodsky, Stanley J. & Gardner, Susan
Object Type:
Article
System:
The UNT Digital Library
Sexual Orientation and the Advanced Placement Art History Survey
This two-part study included a content analysis of an AP art history text and a survey together with interviews with AP art history teachers that embraced both quantitative and qualitative research methodologies. The first phase of the study examined one of the more popular art history survey texts in the AP art history program, Gardner’s Art through the Ages, in terms of how inclusive it is in addressing issues of sexual orientation and, particularly, same-sex perspectives. In addition, the text was examined for evidence of sexual orientation ignored – particularly same-sex perspectives ignored and for heteronormative hegemonies. The second phase investigated the understandings and opinions of AP art history teachers toward the inclusion of sexual orientation and same-sex perspectives in their curriculums and classrooms. Recent recognition of gay, lesbian, and same-sex perspectives in the study of art history has challenged art educators and art historians to begin to consider opening up their curriculums and writings to include these perspectives. These ignored perspectives produce important understandings that enrich and deepen the discourse of art history. The inclusion of gay and lesbian content and same-sex perspectives to the study of AP art history, not only effectively serves the needs of AP art …
Date:
December 2014
Creator:
Bond, Richard P.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Report for Evaluation of Canonical SNP Taqman Assays to Detect Biothreat Agents and Environmental Samples for DHS
None
Date:
May 3, 2011
Creator:
Jaing, C; Hinkley, A; Gardner, S & Thissen, J
Object Type:
Report
System:
The UNT Digital Library
Injection of large transverse emittance EBIS beams in booster
During the commissioning of EBIS beams in Booster in November 2010 and in April, May and June 2011, it was found that the transverse emittances of the EBIS beams just upstream of Booster were much larger than expected. Beam emittances of 11{pi} mm milliradians had been expected, but numbers 3 to 4 times larger were measured. Here and throughout this note the beam emittance, {pi}{epsilon}{sub 0}, is taken to be the area of the smallest ellipse that contains 95% of the beam. We call this smallest ellipse the beam ellipse. If the beam distribution is gaussian, the rms emittance of the distribution is very nearly one sixth the area of the beam ellipse. The normalized rms emittance is the rms emittance times the relativistic factor {beta}{gamma} = 0.06564. This amounts to 0.12{pi} mm milliradians for the 11{pi} mm milliradian beam ellipse. In [1] we modeled the injection and turn-by-turn evolution of an 11{pi} mm milliradian beam ellipse in the horizontal plane in Booster. It was shown that with the present injection system, up to 4 turns of this beam could be injected and stored in Booster without loss. In the present note we extend this analysis to the injection of …
Date:
October 10, 2011
Creator:
Gardner, C.
Object Type:
Report
System:
The UNT Digital Library
Motivating Pre-service Teachers to Incorporate Technology Into the Classroom
Technology integration into the classroom is a multi-faceted and complex topic. One factor that can have an effect on a teacher's incorporation of technology into their classroom is pre-service teacher technology training. In this research study the ARCS instructional design model was applied to a pre-service teacher technology course in the hopes of motivating course attendees to both learn about technology incorporation and to incorporate technology into their future classrooms. The ARCS instructional design model that relies on the motivational sub-components of attention, relevance, confidences, and satisfaction to develop instruction that motivates to students to learn course content and goals. This study analyzed a group of pre-service teachers enrolled in a university technology training course to determine if the redesign resulted in the desired outcomes. Pre-test and post-test data was collected using both quantitative and qualitative instruments to analyze the potential effect of the redesigned course.
Date:
August 2013
Creator:
Gardner, David
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
FY11 Report on Metagenome Analysis using Pathogen Marker Libraries
None
Date:
June 2, 2011
Creator:
Gardner, S.; Allen, J.; McLoughlin, K. & Slezak, T.
Object Type:
Report
System:
The UNT Digital Library
Cracking the Closed Society: James W. Silver and the Civil Rights Movement in Mississippi
This thesis examines the life of James Wesley Silver, a professor of history at the University of Mississippi for twenty-six years and author of Mississippi: The Closed Society, a scathing attack on the Magnolia State's history of racial oppression. In 1962, Silver witnessed the campus riot resulting from James Meredith's enrollment as the first black student at the state's hallowed public university and claims this was the catalyst for writing his book. However, by examining James Silver's personal and professional activities and comparing them with the political, cultural, and social events taking place concurrently, this paper demonstrates that his entire life, the gamut of his experiences, culminated in the creation of his own rebel yell, Mississippi: The Closed Society. Chapter 1 establishes Silver's environment by exploring the history and sociology of the South during the years of his residency. Chapter 2 discusses Silver's background and early years, culminating with his appointment as a faculty member of the University of Mississippi in 1936. Chapter 3 reveals Silver's personal and professional life during the 1940s, as well as the era's notable historical events. The decade of the 1950s is discussed in chapter 4, particularly the civil rights movement, Silver's response to these …
Date:
May 2010
Creator:
Fox, Lisa Ann
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Notes on dumping gold beam in the AGS
Localized losses of gold beam in the AGS during RHIC Run 8 produced vacuum leaks which required the replacement of several vacuum chambers. A review of what happened and why was given by Leif Ahrens at the Run 8 Retreat. The following notes trace the subsequent development of clean dumping of gold beam on the beam dump in the J10 straight. The novel idea of stripping Au77+ ions in order to put them directly into the upstream face of the dump was introduced by Leif Ahrens and developed by all three of us. George Mahler made the actual stripping device and Dave Gassner developed its control. Leif Ahrens successfully commissioned the device with gold beam during Run 10. The reader may find it helpful to first view the figures herein and then refer to the text for details.
Date:
August 1, 2010
Creator:
Gardner, C. J.; Ahrens, L. & Thieberger, P.
Object Type:
Report
System:
The UNT Digital Library
saSNP Approach for Scalable SNP Analyses of Multiple Bacterial or Viral Genomes
None
Date:
July 27, 2010
Creator:
Gardner, S & Slezak, T
Object Type:
Report
System:
The UNT Digital Library
Spatial Ability in Registered Nurses
Spatial ability is the skill associated with mental relations among objects, the process of maintaining the physical aspects of an object after mentally rotating it in space. Many studies report a strong association of spatial ability with success in various areas of health care, especially surgery, radiology and dentistry. To date, similar investigations in professional nursing could not be located. Registered nurses, employed in an acute care multi-hospital setting, were surveyed using the Shipley-2Block Pattern Test, the Group Embedded Figures Test, and a newly created test of general nursing knowledge. The sample size of 123 nurses was composed of 31 male nurses and 92 female nurses. Data was collected between May and August of 2013 and analyzed using R, version 2.15.2. The present study did not demonstrate a statistically significant effect for gender differences on two measures of spatial ability. However, Cohen’s d effect sizes for mean gender differences in the present study are consistent with prior studies. This may suggest the nursing profession is comparable with other professions where males perform higher than females on spatial ability. The present study should be considered an initial step toward evaluating the relevance of spatial ability in the performance of nursing care.
Date:
May 2014
Creator:
Gardner, Janet E.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library