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Effects of Gold Sodium Thiomalate on Murine Spleen Cells

Description: The effects of gold sodium thiomalate (GST) on murine spleen cells were investigated using in vitro mitogen blastogenesis techniques. Addition of GST to intact spleen cells resulted in a decreased blastogenic response to the T cell mitogen, concanavalin A (Con A). Thymidine uptake of spleen cells depleted of macrophages and cultured with Con A and GST demonstrated biphasic effects. At 2.5 pg Con A/ml, blastogenesis of macrophage depleted spleen cells was inhibited to a lesser degree than intact… more
Date: December 1986
Creator: Brownback, Paul (Paul Eldon)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Mining Practices and Safety at the Lava Cap Gold Mining Corporation Mines, Nevada City-Grass Valley District, California

Description: Report issued by the Bureau of Mines discussing mining safety in the Grass Valley mining district. As stated in the introduction, "the purpose of this paper is not to present an outstanding safety record but to show that gold mining can be pursued with the same degree of safety and improvement as any other industry, if and when the management recognizes that it can and must be done" (p. 1). This report includes tables, maps, illustrations, and photographs.
Date: 1941
Creator: Ash, S. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Development and Testing of Gold(I) and Europium(III) Based Sensors for Environmental Applications

Description: This dissertation focuses on the development, characterization, and analysis of luminescent materials and coatings for sensing applications, including CO2, heavy metals, and silver. Chapter 2 involves the use of a gold(I) pyrazolate trimer that is able to detect silver ions with an AgNP medium. Detection of silver is vital, because there is an influx of silver into our environment caused by the increased use of AgNP. Therefore, having a sensor that is able to differentiate between and detect on… more
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Date: May 2019
Creator: Benton, Erin Nicole
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Gold Compounds and Rheumatoid Arthritis Murine Studies of the Immune Response to Gold Sodium Thiomalate

Description: Balb/c normal mice were used to study the effects of gold sodium thiomalate (GST) on intact, nonadherent, and adherent mononuclear spleen cells. The three populations were tested for the following aspects: in vitro effects of GST on the mitogen-triggered DNA synthesis; intracellular levels of cyclic AMP; and chemotaxis ability. These studies showed that GST inhibited the proliferative responses of all three populations as the concentration of GST increased. Cyclic AMP levels in the nonadherent … more
Date: August 1986
Creator: Sayahtaheri, Sousan
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The impact of process parameters on gold elimination from soldered connector assemblies

Description: Minimizing the likelihood of solder joint embrittlement in connectors is realized by reducing or eliminating retained Au plating and/or Au-Sn intermetallic compound formation from the assemblies. Gold removal is performed most effectively by using a double wicking process. When only a single wicking procedure can be used, a higher soldering temperature improves the process of Au removal from the connector surfaces and to a nominal extent, removal of Au-contaminated solder from the joint. A long… more
Date: February 2, 2000
Creator: VIANCO,PAUL T. & KILGO,ALICE C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Phase imaging and the evolution of a gold-vacuum interface atatomic resolution

Description: We observe, using phase maps obtained from a focal series ofimages, the evolution in time of agold-vacuum interface. What is seen isthe reconfiguration and removal of whole columns of goldatoms (typicallycontaining three to nine atoms) at the interface. These structuralchanges arediscussed with reference to the variation in binding energyalong the interface.
Date: September 1, 2006
Creator: Martin, A. V.; Ishizuka, K.; Kisielowski, C. & Allen, L. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Gold Veins Near Great Falls, Maryland

Description: From abstract: Small deposits of native gold are present along an anastomosing system of quartz veins and shear zones just east of Great Falls, Montgomery County, Md. The deposits were discovered in 1861 and were worked sporadically until 1951, yielding more than 5,000 ounces of gold. The vein system and the principal veins within it strike a few degrees west of north, at an appreciable angle to foliation and fold axial planes in enclosing rocks of the Wissahickon Formation of late Precambrian … more
Date: 1969
Creator: Reed, John Calvin, Jr. & Reed, John Calvin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Past Placer-Gold Production from Alaska

Description: "To the end of 1930 Alaska, according to the records of the Geological Survey, had produced placer gold to the value of $258,962,000 from mines widely scattered throughout its length and breadth. The distribution of the placers from which the gold was recovered has been stated in more or less detail in the annual summaries published by the Geological Survey on the mineral industry of Alaska and also in its more complete reports on many of the individual mining districts. Although these summarie… more
Date: 1933
Creator: Smith, Philip S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of Gold and Gold Alloy Bearings in Pump Process

Description: The use of process-solution-lubricated sleeve bearings in rotating equipment is quite extensive at H.A.P.O. The difficulty or impossibility of providing contact maintenance, the poor lubricating qualities and corrosive natures of most of the process solutions, in addition to radioactivity, impose stringent restrictions on the selection of materials of construction of these bearings. Prototypical evaluation of materials indicating suitable characteristics in preliminary testing, both in the Corr… more
Date: February 13, 1956
Creator: Dunn, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CO Oxidation at the Interface of Au Nanoclusters and the Stepped-CeO2(111) Surface

Description: To reveal the richer chemistry of CO oxidation by CeO2 supported Au Nanoclusters NCs)/Nanoparticles, we design a Au12 supported on a stepped-CeO2 model (Au/CeO2-step) and study various kinds of CO oxidation mechanisms at the interface of the Au/CeO2-step: oxygen spillover from the CeO2 to the Au NCs;2 CO oxidation by the O2 bound to the Au-Ce3+ interface;3 and CO oxidation by the Mars-van Krevelen (M-vK) mechanism.4 DFT+U calculations show that lattice oxygen at the CeO2 step edge oxidizes CO b… more
Date: January 14, 2013
Creator: Y., Kim H. & Henkelman, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

CO Oxidation mechanism on CeO2-supported Au nanoclusters

Description: To reveal the richer chemistry of CO oxidation by CeO2 supported Au Nanoclusters(NCs)/Nanoparticles, we design Au13 and Au12 supported on a flat and a stepped-CeO2 model (Au/CeO2) and study various kinds of CO oxidation mechanisms at the Au-CeO2 interface and the Au NC as well.
Date: September 8, 2013
Creator: Y., Kim H. & Henkelman, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Injection of Gold Ions in the AGS Booster With Linear Coupling.

Description: Linear Coupling, introduced by skew quadrupoles, has been used for several years to enhance the multi-turn injection efficiency of gold and other heavy ions in the AGS Booster. In this paper we describe our latest measurements of the injection process and compare with models.
Date: March 29, 1999
Creator: Gardne, C.; Ahrens, L.; Roser, T. & Zeno, K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Directed assembly of discrete gold nanoparticle groupings usingbranched DNA scaffolds

Description: The concept of self-assembled dendrimers is explored for the creation of discrete nanoparticle assemblies. Hybridization of branched DNA trimers and nanoparticle-DNA conjugates results in the synthesis of nanoparticle trimer and tetramer complexes. Multiple tetramer architectures are investigated, utilizing Au-DNA conjugates with varying secondary structural motifs. Hybridization products are analyzed by gel electrophoresis, and discrete bands are observed corresponding to structures with incre… more
Date: September 14, 2004
Creator: Claridge, Shelley A.; Goh, Sarah L.; Frechet, Jean M.J.; Williams, Shara C.; Micheel, Christine M. & Alivisatos, A. Paul
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Laboratory Directed Research and Development at Lawrence Livermore National Laboratory (LDRD). Final report, Project No. 95-ERD-039

Description: One of the last frontiers in nuclear physics is the discovery of the high baryon density, high temperature transition from normal hadronic matter to the unbound quark-gluon plasma or QGP. We believe that it is possible to create the QGP in the laboratory by colliding large nuclei (typically beams of gold nuclei) at relativistic energies. We proposed to use an innovative device designed and fabricated by LLNL scientists to study collective phenomena as a function of the Au beam energy between 2 … more
Date: May 1, 1996
Creator: Sangster, T.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Drilling and Sampling Tertiary Gold-Bearing Gravels at Badger Hill, Nevada County, California

Description: Report issued by the Bureau of Mines over gold-bearing deposits of Nevada County, California. Drilling and sampling of these gold deposits are discussed. This report includes tables, maps, illustrations, and photographs.
Date: 1974
Creator: McLellan, Russell R.; Berkenkotter, Richard D.; Wilmot, Richard C. & Stahl, Robert L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The RHIC Injector Accelerators Configurations, and Performance for the RHIC 2003 Au-D Physics Run.

Description: The RHIC 2003 Physics Run [1] required collisions between gold ions and deuterons. The injector necessarily had to deliver adequate quality (transverse and longitudinal emittance) and quantity of both species. For gold this was a continuing evolution from past work [2]. For deuterons it was new territory. For the filling of the RHIC the injector not only had to deliver quality beams but also had to switch between these species quickly. This paper details the collider requirements and our succes… more
Date: May 12, 2003
Creator: Ahrens, L.; Benjamin, J.; Blaskiewicz, M.; Brennan, J. M.; Brown, K. A.; Carlson, K. A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Open Schedules for Gold and Silver Ores and Concentrates at Western Custom Smelters

Description: Report issued by the U.S. Bureau of Mines discussing the smelting schedules for the operators of silver and gold mines. As stated in the introduction, "the paper discusses smelting schedules, general smelting practices that have a bearing on rates, and the reasons for penalties or credits for certain constituents of ores" (p. 1). This report includes tables.
Date: December 1936
Creator: Gardner, E. D. & Allsman, Paul T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Prominent Soft X-ray Lines of Sr-like Au41+ in Low-energy EBIT Spectrum

Description: Relativistic multireference M{o}ller-Plesset perturbation theory has been employed to calculate with high accuracy the energy levels and transition probabilities of Cu- to Sr-like gold ions. The many-body calculations were carried out to identify the unassigned blended lines in the 35-40 angstroms region of the low-energy EBIT spectrum of the gold ions. Most of the prominent lines in the 35-40 angstroms region were identified as the emission lines in Sr-like gold.
Date: March 27, 2007
Creator: Vilkas, M J; Ishikawa, Y & Trabert, E
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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