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1,077 Matching Results
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Henderson County Courthouse, Athens
Photograph of a family posing outside the Henderson County Courthouse.
Date:
October 26, 2005
Creator:
Belden, Dreanna L.
Object Type:
Photograph
System:
The Portal to Texas History
A High-Efficiency Resonant Cavity for Measurement of a Beam Quadrupole Moment
Many particle accelerator applications can benefit from online pulse-by-pulse nonintercepting emittance measurement system. Recently, there has been much interest in performing such a measurement with a set of resonant quadrupole-mode cavities. This article explores a geometry to achieve an enhanced shunt impedance in such a cavity by adding a set of posts forming capacitive gaps near the beam pipe outer radius. For typical diagnostic cavity applications, a five-fold increase in shunt impedance can be obtained with this method. The effect of errors in cavity fabrication on the required mode structure are explored.
Date:
October 26, 2005
Creator:
Barov, N.; Kim, J. S.; Nantista, C. D. & Miller, R. H.
Object Type:
Report
System:
The UNT Digital Library
Historic Plaque, Cherokee County Courthouse
Photograph of a historic plaque. It reads: "Cherokee County Courthouse. This courthouse, the fourth to serve the citizens of Cherokee County, was built in 1940-41 with the assistance of the Federal Works Progress Administration. Designed by the architectural firm of Gill and Bennett, the moderne structure is built of native red and white limestone and features a central block with two-and-one-half story wings. Large windows on its two primary facades and decorative art deco grillwork are also prominent. Recorded Texas Historic Landmark, 1991."
Date:
October 26, 2005
Creator:
Belden, Dreanna L.
Object Type:
Photograph
System:
The Portal to Texas History
Historic Plaque, Cherokee Couny
Photograph of a historic marker. It reads: "Cherokee County has a rich and varied history. Spanish and French explorers of the seventeenth century found Tejas and Hasinai Indians living in this area, and Spanish Missions were established in the region. Driven out of the United States, the Cherokee Indians migrated to this area about 1822, and were here at the time of the Anglo-American colonization in the 1820s and 1830s. Under the administration of Republic of Texas President Mirabeau B. Lamar, the Cherokee were expelled from the area in 1839. Following formal creation of Cherokee County from Nacogdoches County in 1846, settlement of the area increased rapidly. Family farms and towns soon sprung up throughout the county. The building of roads and the advancement of railroads and river navigation contributed further to settlement. The chief economic base of the county from its beginning, agriculture remained a vital force as industrialization and business interests developed. The establishment of schools and churches formed the basis for the area's social history. Cherokee County has been the birthplace of two Texas Governors, one Governor of Wyoming, and one Speaker of the Texas House of Representatives. Texas Sesquicentennial 1836-1986."
Date:
October 26, 2005
Creator:
Belden, Dreanna L.
Object Type:
Photograph
System:
The Portal to Texas History
Historic Plaque, Colonel Isham Chisum
Photograph of a historic plaque. It reads "Colonel Isham Chisum (1818-1884) One of the leading early citizens of Kaufman County. Represented the county in Texas Secession Convention, Jan. - March 1861. Later in 1861, he fought in Confederate Cavalry of Col. Tom Green in New Mexico campaign. As Colonel of 2nd Partisan Rangers, Walker's Division, fought at Mansfield and Pleasant Hill (La.), in Red River campaign to prevent a Federal invasion of Texas in 1864. A cousin of Jesse Chisholm, who pioneered famous Chisholm Cattle Trail, and of cattle baron John Simpson Chisum, Col. Chisum married Charlotte Martin. They have many descendants in Texas. (1971)"
Date:
October 26, 2005
Creator:
Belden, Dreanna L.
Object Type:
Photograph
System:
The Portal to Texas History
Historic Plaque, Courts Under the Oaks
Photograph of a historic marker. It reads: "Courts Under the Oaks. Henderson County was established in 1846, the year after Texas was annexed by the United States. In 1850, after previous reductions in the county's original size, the present boundaries were set by the Texas Legislature. The restructuring resulted in the need for a new county seat, and the legislature appointed a Commissioners Court to select possible sites and to conduct an election that would determine the permanent seat of government. The voters chose the property of Matthew Cartwright, a prominent east Texas landowner, for the townsite of Athens in Samuel Huffer's survey for the new County seat. This site was set aside as the public square. Before a courthouse was constructed here, early district court sessions were conducted on the square under a large shady oak tree. The first district court term, held in October 1850, was presided over by Judge Oran M. Roberts, later a Texas Supreme Court Justice and Governor of the State. Cases he heard included charges of murder, larceny, gambling, defaulting jurors and assault and battery. Begun before the development of Athens, the Courts under the Oaks reflected the democratic goals and ideals of the …
Date:
October 26, 2005
Creator:
Belden, Dreanna L.
Object Type:
Photograph
System:
The Portal to Texas History
Historic Plaque, San Augustine County Courthouse
Photograph of a historic plaque in San Augustine, Texas. It reads: "San Augustine County Courthouse. When the town of San Augustine was platted in 1834, this property was reserved for the public square, but it was another 20 years before the first courthouse was constructed here. San Augustine was one of the 23 original counties established after Texas won independence from Mexico in 1836. Early courts were held in the Mansion Hotel, and by 1840, the county government operated out of the Federal Custom House. In 1854, San Augustine County built its first Courthouse on the public square. The subsequent Courthouse, an 1893 Italianate structure, was razed to make room for the current building. Completed in 1927, the third San Augustine County Courthouse is constructed of Texas Lueders Stone. It is symmetrical in plan with a prominent central entry bay and exhibits influences of the classical revival style of architecture. The County Commissioner Court, with County Judge Ed Kennon presiding, selected East Texas architect Shirley Simons as the designer and the firm of Campbell and White as the builders. Over the years, the square has been a gathering place for community and county events. Monuments placed on the grounds include …
Date:
October 26, 2005
Creator:
Belden, Dreanna L.
Object Type:
Photograph
System:
The Portal to Texas History
In-vivo imaging of the photoreceptor mosaic in retinal dystrophies and correlations with visual function
To relate in-vivo microscopic retinal changes to visual function assessed with clinical tests in patients with various forms of retinal dystrophies. The UC Davis Adaptive Optics (AO) Fundus Camera was used to acquire in-vivo retinal images at the cellular level. Visual function tests, consisting of visual field analysis, multifocal electroretinography (mfERG), contrast sensitivity and color vision measures, were performed on all subjects. Five patients with different forms of retinal dystrophies and three control subjects were recruited. Cone densities were quantified for all retinal images. In all images of diseased retinas, there were extensive areas of dark space between groups of photoreceptors, where no cone photoreceptors were evident. These irregular features were not seen in healthy retinas, but were characteristic features in fundi with retinal dystrophies. There was a correlation between functional vision loss and the extent to which the irregularities occurred in retinal images. Cone densities were found to decrease with an associated decrease in retinal function. AO fundus photography is a reliable technique for assessing and quantifying the changes in the photoreceptor layer as disease progresses. Furthermore, this technique can be useful in cases where visual function tests give borderline or ambiguous results, as it allows visualization of individual …
Date:
October 26, 2005
Creator:
Choi, S.; Doble, N.; Hardy, J.; Jones, S.; Keltner, J.; Olivier, S. et al.
Object Type:
Report
System:
The UNT Digital Library
Introducing a Senate Bill or Resolution
None
Date:
October 26, 2005
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Israel: Background and Relations with the United States
On May 14, 1948, the State of Israel declared its independence and was immediately engaged in a war with all of its neighbors. Armed conflict has marked every decade of Israel’s existence. Despite its unstable regional environment, Israel has developed a vibrant parliamentary democracy, albeit with relatively fragile governments. Prime Minister Ariel Sharon formed the current three-party coalition in January 2005 in order to secure support for his plan to withdraw from the Gaza Strip and four small settlements in the West Bank. The evacuation of the settlers was completed on August 23. Some observers are predicting an early national election in 2006.
Date:
October 26, 2005
Creator:
Migdalovitz, Carol
Object Type:
Report
System:
The UNT Digital Library
James Pinckney Henderson Monument, San Augustine
Photograph of the James Pinckney Henderson monument in front of the San Augustine County Courthouse.
Date:
October 26, 2005
Creator:
Belden, Dreanna L.
Object Type:
Photograph
System:
The Portal to Texas History
Kaufman County Courthouse
Photograph of the Kaufman County Courthouse. An American flag flies from the building, and cars are parked in front of the building.
Date:
October 26, 2005
Creator:
Belden, Dreanna L.
Object Type:
Photograph
System:
The Portal to Texas History
N. L. Tindall Building, San Augustine County Sheriff's Department
Photograph of the N. L. Tindall Building, now San Augustine County Sheriff's Department. Several cars are parked in front of the building.
Date:
October 26, 2005
Creator:
Belden, Dreanna L.
Object Type:
Photograph
System:
The Portal to Texas History
The Llano News (Llano, Tex.), Vol. 118, No. 4, Ed. 1 Wednesday, October 26, 2005
Weekly newspaper from Llano, Texas that includes local, state, and national news along with advertising.
Date:
October 26, 2005
Creator:
Stephenson, Jimmy
Object Type:
Newspaper
System:
The Portal to Texas History
Mannford Eagle (Mannford, Okla.), Vol. 23, No. 78, Ed. 1 Wednesday, October 26, 2005
Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 26, 2005
Creator:
Retherford, Mary J.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Matrix Formalism for Spin Dynamics Near a Single Depolarization Resonance
A matrix formalism is developed to describe the spin dynamics in a synchrotron near a single depolarization resonance as the particle energy (and therefore its spin precession frequency) is varied in a prescribed pattern as a function of time such as during acceleration. This formalism is first applied to the case of crossing the resonance with a constant crossing speed and a finite total step size, and then applied also to other more involved cases when the single resonance is crossed repeatedly in a prescribed manner consisting of linear ramping segments or sudden jumps. How repeated crossings produce an interference behavior is discussed using the results obtained. For a polarized beam with finite energy spread, a spin echo experiment is suggested to explore this interference effect.
Date:
October 26, 2005
Creator:
Chao, Alexander W.
Object Type:
Article
System:
The UNT Digital Library
The Mercedes Enterprise (Mercedes, Tex.), Vol. 93, No. 43, Ed. 1 Wednesday, October 26, 2005
Weekly newspaper from Mercedes, Texas that includes local, state, and national news along with advertising.
Date:
October 26, 2005
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
A Method to Measure the Flatness of the LSST Focal Plane Assembly in Situ
In this note I describe an inexpensive and simple laser-based method to measure the flatness of the LSST focal plane assembly (FPA) in situ, i.e. while the FPA is inside its cryostat, at -100 C and under vacuum. The method may also allow measurement of the distance of the FPA to lens L3, and may be sensitive enough to measure gravity- and pressure-induced deformations of L3 as well. The accuracy of the method shows promise to be better than 1 micron.
Date:
October 26, 2005
Creator:
Langeveld, Willy
Object Type:
Report
System:
The UNT Digital Library
The Middle East Peace Talks
This report includes information regarding Middle East peace talks. The role of the United States, the Israel-Jordan peace treaty, and congressional aid are among topics discussed in this report.
Date:
October 26, 2005
Creator:
Migdalovitz, Carol
Object Type:
Report
System:
The UNT Digital Library
Navy Recruitment Sign
Navy Recruitment Sign on the grounds of the Henderson County Courthouse. "Navy. It's not just a job, it's an adventure."
Date:
October 26, 2005
Creator:
Belden, Dreanna L.
Object Type:
Photograph
System:
The Portal to Texas History
A NON-CLEAVABLE UmuD VARIANT THAT ACTS AS A UmuD' MIMIC
UmuD{sub 2} cleaves and removes its N-terminal 24 amino acids to form UmuD'{sub 2}, which activates UmuC for its role in UV-induced mutagenesis in E. coli. Cells with a non-cleavable UmuD exhibit essentially no UV-induced mutagenesis and are hypersensitive to killing by UV light. UmuD has been shown to bind to the beta processivity clamp (''beta'') of the replicative DNA polymerase, pol III. A possible beta-binding motif has been predicted in the same region of UmuD shown to be important for its interaction with beta. We performed alanine-scanning mutagenesis of this motif (14-TFPLF-18) in UmuD and showed that it has a moderate influence on UV-induced mutagenesis but is required for the cold sensitive phenotype caused by elevated levels of wild-type UmuD and UmuC. Surprisingly, the wild-type and the beta-binding motif variant bind to beta with similar K{sub d} values as determined by changes in tryptophan fluorescence. However, this data also implies that the single tryptophan in beta is in strikingly different environments in the presence of the wild-type versus the variant UmuD proteins, suggesting a distinct change in some aspect of the interaction with little change in its strength. Despite the fact that this novel UmuD variant is noncleavable, we …
Date:
October 26, 2005
Creator:
Beuning, P J; Simon, S M; Zemla, A; Barsky, D & Walker, G C
Object Type:
Article
System:
The UNT Digital Library
North Texas Daily (Denton, Tex.), Vol. 90, No. 34, Ed. 1 Wednesday, October 26, 2005
Daily student newspaper from the University of North Texas in Denton, Texas that includes local, state and campus news along with advertising.
Date:
October 26, 2005
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Oklahoma Daily (Norman, Okla.), Vol. 90, No. 50, Ed. 1 Wednesday, October 26, 2005
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 26, 2005
Creator:
Ganus, Sara
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Optimist (Abilene, Tex.), Vol. 94, No. 19, Ed. 1, Wednesday, October 26, 2005
Weekly student newspaper from Abilene Christian University in Abilene, Texas that includes local, state and campus news along with advertising.
Date:
October 26, 2005
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History