Structure, wood, and the form of furniture

None provided

Exploration of the correlation between non-objective painting and sculpture in the round

The purpose of this thesis is to explore the correlation between non-objective painting and sculpture in the round. I believe there is an opportunity to create unique work that combines, integrates, juxtaposes or holds in opposition the image, color and surface qualities of painting and the material physicality of free-standing sculpture. I will attempt to blur the distinctions between painting and sculpture. The art of Jennifer Bartlett, Eva Hesse, Robert Rauschenberg, Frank Stella and Jessica Stockholder is among the significant work that points to a hybrid art form. I intend to pursue this thesis through direct observation, library research, examination of contemporary art and personal exploration with a series of works utilizing non-objective painting imagery and constructed three-dimensional forms

State of Florida Division of Administrative Hearings: Petitioner\u27s Motion to Compel Production of Documents

Legal documents related to a dispute between the Sawmill Slough Conservation Club vs. the University of North Floridahttps://digitalcommons.unf.edu/sawmill_history/1001/thumbnail.jp

Mineralogy and Geochemistry of Iron-Oxides in Precambrian Banded Iron Formations of the Middleback Ranges, South Australia

The Gawler Craton in South Australia is host to hundreds of Fe-rich deposits of varying types, most well-known are those of iron-oxide copper gold (IOCG) type within the ~1.6 Ga Olympic Cu-Au Province. However, only iron ore deposits of the Archean-aged Middleback Ranges (Eyre Peninsula) belt are unequivocally recognized as being banded iron formation (BIF)- derived. Although other deposits are alleged to be of BIF origin, their formation remains illconstrained. Petrography and geochemistry of iron-oxides from the Middleback Ranges are studied at various scales of observation to constrain ore formation in BIFs from a terrane with a protracted geological history. The age, petrography and geochemistry of granites and mafic lithologies associated with the ores are used to constrain ore formation from deposition to ore enrichment. Several Fe-rich prospects from different parts of the Gawler Craton are studied in further detail to test the reliability of iron-oxides to track ore formation. Petrography and trace elements signatures of iron-oxides from deposits along the Middleback Ranges indicate domain heterogeneity throughout the belt with respect to depositional environment and interaction with fluids of both granitic (U, W, Sn) and mafic affiliation (Cr, Ni, Zn). The discovery of U-bearing hematite in BIF ores is followed by LAICP- MS U–Pb dating in one prospect, Iron Count. The age (~1790 Ma) is concordant with monazite ages in the same sample and coincident with emplacement of the adjacent Wertigo Granite. This proves the reliability of hematite for dating the overprinting events that contributed to upgrading of BIF to ore. Archean ages are documented from SHRIMP dating of zircon in granites (3.0-3.24 Ga) adjacent to ore along the belt and for amphibolites (~2.5 Ga) within the BIFs. The youngest age (~780 Ma) is obtained from dolerites crosscutting the ores, the first confirmation of Gairdner-affiliated dikes in the Eyre Peninsula. This supports an Archean environment of BIF deposition post-dating the granite basement and contemporaneous with mafic magmatic activity. The youngest tectono-magmatic event is also recorded by U–Pb dating of Iron Knight hematite (~680 Ma). Alkali-calcic alteration of granites, typical of ~1.6 Ga Hiltaba granitoids, gives indication for undiscovered IOCG mineralization. Iron-oxides from the Island Dam prospect within the Olympic Cu-Au Province show both BIFlike and IOCG (W-Sn-rich) signatures. The ore is associated with actinolite skarn formed on behalf of ~1.75 Ga Wallaroo volcano-sedimentary formation, with carbonate- and Fe-rich horizons affected by emplacement of Hiltaba-aged granitoids. High-grade, Zr- and Ti-rich hematite from Peculiar Knob deposit (Mount Woods Inlier, northern Gawler Craton) was studied from micron- to nanoscale. Baddeleyite (nm-wide needles in hematite) accounts for high-Zr (up to 650 ppm) in hematite whereas interstitial zircon gives an age of ~1.74 Ga, concordant with the Kimban Orogeny. The ore, previously considered BIF, is re-interpreted as a metamorphosed Fe-rich sediment with detrital titanomagnetite sourced from mafic rocks, and also featuring a Hiltaba overprint (W-, Nb-, Sb- , Sn-rich rims in hematite). Whereas BIF-hosted iron-oxides share generic characteristics, the transformation from BIF to ore must be understood in the context of the local geological setting underpinned by sound petrographic characterization at appropriate scales. The petrographic and geochemical approach used here, combined with hematite dating, can be used to understand ore genesis. Bridging micron- to nano- scales of observation gives insights into trace element incorporation into, and later release from, iron-oxides.Thesis (Ph.D.) -- University of Adelaide, School of Chemical Engineering and Advanced Materials, 201

Quartz chemistry of granitic pegmatites: Implications for classification, genesis and exploration

Quartz from 254 pegmatites representing eight pegmatite fields and provinces worldwide was investigated by laser-ablation inductively-coupled plasma mass spectrometry (LA-ICP-MS) to determine concentrations of trace elements Al, Ti, Li, Ge, B, Be, Rb, Na, K, Ca, P, Ga, Sb, Zn and U. A total of 271 new analyses combined with 535 published LA-ICP-MS quartz chemistry data were evaluated with binary and ternary trace element discrimination plots and principal component analysis (PCA). The classifications applied for discrimination of pegmatite types include the widely applied NYF(Nb-Y-F) - LCT(Li-Cs-Ta) classification and the new RMG (pegmatites derived from residual melts of granite magmatism) - DPA (pegmatites as direct products of anatexis) grouping. Pegmatites of both classifications can be well distinguished via Al-Ti, Al-Li and Al/Ti-Ge/Ti binary trace element plots and the Ti - Al/10 - 10*Ge ternary diagram. PCA applied to Al, Li, Ti, Be, B, Ge and Rb contents in quartz allowed to further distinguish between anatectic DPA-1 (Li-enriched DPA) and granite-pluton-derived RMG-1 (Li-enriched RMG) pegmatites. Some pegmatite fields and provinces (Hagendorf-Pleystein, Oxford County) are distinguishable by region-specific Li, Ge and Al contents. The results imply that the chemistry of pegmatite quartz is mainly controlled by the origin (source rock chemistry) of pegmatite melts and, to a much lesser extent, by the geodynamic setting of the pegmatite fields and provinces. Chemically primitive NYF and DPA-2 type pegmatites contain quartz with the lowest total trace-element contents and lowest internal-pegmatite trace-element variation, making it potentially suitable for high-tech application. Pegmatite quartz containing >30 μgg-1 Li and >100 μgg-1 Al is strongly indicative of economic spodumene/montebrasite mineralization and, thus, serves as a strong Li-mineralization pathfinder mineral. Quartz with >5 μgg-1 B may be a potential indicator for gem-quality tourmaline mineralization.Fil: Müller, Axel. University of Oslo; Noruega. Natural History Museum; Reino UnidoFil: Keyser, William. University of Oslo; NoruegaFil: Simmons, William B.. Maine Mineral And Gem Museum; Estados UnidosFil: Webber, Karen. Maine Mineral And Gem Museum; Estados UnidosFil: Wise, Michael. Smithsonian Institution; Estados UnidosFil: Beurlen, Hartmut. Universidade Federal de Pernambuco; BrasilFil: Garate Olave, Idoia. Universidad del País Vasco; EspañaFil: Roda Robles, Encarnación. Universidad del País Vasco; EspañaFil: Galliski, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentin

Digital Sensing and Molecular Computation by an Enzyme-Free DNA Circuit.

DNA circuits form the basis of programmable molecular systems capable of signal transduction and algorithmic computation. Some classes of molecular programs, such as catalyzed hairpin assembly, enable isothermal, enzyme-free signal amplification. However, current detection limits in DNA amplification circuits are modest, as sensitivity is inhibited by signal leakage resulting from noncatalyzed background reactions inherent to the noncovalent system. Here, we overcome this challenge by optimizing a catalyzed hairpin assembly for single-molecule sensing in a digital droplet assay. Furthermore, we demonstrate digital reporting of DNA computation at the single-molecule level by employing ddCHA as a signal transducer for simple DNA logic gates. By facilitating signal transduction of molecular computation at pM concentration, our approach can improve processing density by a factor of 104 relative to conventional DNA logic gates. More broadly, we believe that digital molecular computing will broaden the scope and efficacy of isothermal amplification circuits within DNA computing, biosensing, and signal amplification in general

Speech Communication

Contains reports on three research projects.National Institutes of Health (Grant 2 ROI NS04332)National Institutes of Health (Training Grant 5 T32 NS07040)C. J. LeBel FellowshipsNational Institutes of Health (Grant 5 RO1 NS13028)National Science Foundation (Grant BNS76-80278)National Science Foundation (Grant BNS77-26871