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Full-Text Articles in Physical Sciences and Mathematics
Chilling Out In The Country? Interrogating Daylesford As A 'Gay/Lesbian Rural Idyll', Andrew W. Gorman-Murray, Gordon R. Waitt, Christopher R. Gibson
Chilling Out In The Country? Interrogating Daylesford As A 'Gay/Lesbian Rural Idyll', Andrew W. Gorman-Murray, Gordon R. Waitt, Christopher R. Gibson
Faculty of Science - Papers (Archive)
Recent scholarship suggests that the gay/lesbian idyllisation of rural places is an urban construct, constituted through metropolitan sensibilities, communities and imaginaries. We extend this work through examining the construction of Daylesford, Victoria, as a ‘gay/lesbian rural idyll’. Daylesford annually hosts ChillOut, Australia’s largest rural gay/lesbian festival, which underpins its idyllisation. Utilising data drawn from fieldwork conducted at the 2006 festival and commentaries circulated in the gay/lesbian media, we argue that not only is Daylesford idyllised in the Australian gay/lesbian imaginary, but that rurality and urbanity are hybridised in its framing as a ‘gay/lesbian rural idyll’. This is manifested in several …
The Repressor Element 1-Silencing Transcription Factor Regulates Heart-Specific Gene Expression Using Multiple Chromatin-Modifying Complexes, Andrew J. Bingham, Lezanne Ooi, Lukasz Kozera, Edward White, Ian C. Wood
The Repressor Element 1-Silencing Transcription Factor Regulates Heart-Specific Gene Expression Using Multiple Chromatin-Modifying Complexes, Andrew J. Bingham, Lezanne Ooi, Lukasz Kozera, Edward White, Ian C. Wood
Faculty of Science - Papers (Archive)
Cardiac hypertrophy is associated with a dramatic change in the gene expression profile of cardiac myocytes. Many genes important during development of the fetal heart but repressed in the adult tissue are reexpressed, resulting in gross physiological changes that lead to arrhythmias, cardiac failure, and sudden death. One transcription factor thought to be important in repressing the expression of fetal genes in the adult heart is the transcriptional repressor REST (repressor element 1-silencing transcription factor). Although REST has been shown to repress several fetal cardiac genes and inhibition of REST function is sufficient to induce cardiac hypertrophy, the molecular mechanisms …
Short- And Long-Term Operation Of The Lutein-Epoxide Cycle In Light-Harvesting Antenna Complexes, Shizue Matsubara, Tomas Morosinotto, C Barry Osmond, Roberto Bassi
Short- And Long-Term Operation Of The Lutein-Epoxide Cycle In Light-Harvesting Antenna Complexes, Shizue Matsubara, Tomas Morosinotto, C Barry Osmond, Roberto Bassi
Faculty of Science - Papers (Archive)
The lutein-5,6-epoxide (Lx) cycle operates in some plants between lutein (L) and its monoepoxide, Lx. Whereas recent studies have established the photoprotective roles of the analogous violaxanthin cycle, physiological functions of the Lx cycle are still unknown. In this article, we investigated the operation of the Lx cycle in light-harvesting antenna complexes (Lhcs) of Inga sapindoides Willd, a tropical tree legume accumulating substantial Lx in shade leaves, to identify the xanthophyll-binding sites involved in short- and long-term responses of the Lx cycle and to analyze the effects on light-harvesting efficiency. In shade leaves, Lx was converted into L upon light …
Changes In Tropospheric Composition And Air Quality Due To Stratospheric Ozone Depletion And Climate Change, Stephen R. Wilson, Keith R. Solomon, Xiaoyan Tang
Changes In Tropospheric Composition And Air Quality Due To Stratospheric Ozone Depletion And Climate Change, Stephen R. Wilson, Keith R. Solomon, Xiaoyan Tang
Faculty of Science - Papers (Archive)
It is well-understood that reductions in air quality play a significant role in both environmental and human health. Interactions between ozone depletion and global climate change will significantly alter atmospheric chemistry which, in turn, will cause changes in concentrations of natural and human-made gasses and aerosols. Models predict that tropospheric ozone near the surface will increase globally by up to 10 to 30 ppbv (33 to 100% increase) during the period 2000 to 2100. With the increase in the amount of the stratospheric ozone, increased transport from the stratosphere to the troposphere will result in different responses in polluted and …
Recracking Of Jointed Rock Masses In The Sydney Basin, New South Wales, Australia, H. Memarian, C. L. Fergusson
Recracking Of Jointed Rock Masses In The Sydney Basin, New South Wales, Australia, H. Memarian, C. L. Fergusson
Faculty of Science - Papers (Archive)
Fracture mapping of Late Permian – Early Triassic flat-lying sedimentary rocks in the Sydney Basin, New South Wales, Australia, shows that joints developed originally in extension were faulted in subsequent events. Joints with a regional distribution fall into two, early and late formed groups. Group I joints propagated horizontally and never interfered with each other. These joints were subsequently reworked or recracked. Recracking commenced with jointing and continued with lateral slip. Faulted joints grew horizontally by linking of recracked segments. En echelon arrays are the result of vertical propagation of faulted joints into intact rock. Recracking of rock also resulted …
Polypyrrole Based Switchable Filter System, Yanzhe Wu, Lorrain Nolan, Shirley Coyle, King Tong Lau, Gordon G. Wallace, Dermot Diamond
Polypyrrole Based Switchable Filter System, Yanzhe Wu, Lorrain Nolan, Shirley Coyle, King Tong Lau, Gordon G. Wallace, Dermot Diamond
Faculty of Science - Papers (Archive)
BioTex is an EU funded project aiming to develop textile-based sensors for monitoring biological fluids. In the context of the project, there is a need to develop an effective sample delivery strategy for the wearable biomedical devices. A compact, electroactive switchable membrane would be useful as a valve to control the sample delivery within such devices. A method that employed inherently conducting polymers deposited onto a permeable substrate to form a switchable membrane was investigated [1, 2, 3]. By application of specific voltages, the permeability (pore size) of the membrane can be switched to swollen (expand) and contracted forms, which …
Chemical Vapour Deposition Grown Carbon Nanotubes For Interconnect Technology, R. W. Leahy, E. Lahiff, A Minett, W. J. Blau
Chemical Vapour Deposition Grown Carbon Nanotubes For Interconnect Technology, R. W. Leahy, E. Lahiff, A Minett, W. J. Blau
Faculty of Science - Papers (Archive)
Multiwall carbon nanotubes have been grown by catalytic chemical vapour deposition using iron catalyst particles drop cast onto etched silicon wafers. The catalyst used was poly(styrene-vinylferrocene) in toluene solution which has an iron content of 2.1%. The etched silicon wafers have trench regions of varying widths ranging from 0.32 to 1 μm. For trench widths below 0.5 μm the number of “interconnecting” tubes growing from one side of the trench to the other increases sharply. A significant proportion of these “interconnects” are found to be Y-junction and multiple junction MWNTs. A systematic study of the effects of each of the …
Direct Imaging Of Lipid-Ion Network Formation Under Physiological Conditions By Frequency Modulation Atomic Force Microscopy, Michael J. Higgins, Suzi P. Jarvis, Takeshi Fukuma
Direct Imaging Of Lipid-Ion Network Formation Under Physiological Conditions By Frequency Modulation Atomic Force Microscopy, Michael J. Higgins, Suzi P. Jarvis, Takeshi Fukuma
Faculty of Science - Papers (Archive)
Various metal cations in physiological solutions interact with lipid headgroups in biological membranes, having an impact on their structure and stability, yet little is known about the molecular-scale dynamics of the lipid-ion interactions. Here we directly investigate the extensive lipid-ion interaction networks and their transient formation between headgroups in a dipalmitoylphosphatidylcholine bilayer under physiological conditions. The spatial distribution of ion occupancy is imaged in real space by frequency modulation atomic force microscopy with sub-Angstrom resolution.
2635 Ma Amphibolite Facies Gold Mineralisation Near A Terrane Boundary (Suture?) On Storo, Nuuk Region, Southern West Greenland, Allen P. Nutman, Ole Christiansen, Clark R. L Friend
2635 Ma Amphibolite Facies Gold Mineralisation Near A Terrane Boundary (Suture?) On Storo, Nuuk Region, Southern West Greenland, Allen P. Nutman, Ole Christiansen, Clark R. L Friend
Faculty of Science - Papers (Archive)
Gold on Storø (in the Nuuk region of southern West Greenland) occurs in a slice of strongly deformed, amphibolite facies, Neoarchaean quartzo-feldspathic metasedimentary rocks and amphibolites in tectonic contact with the Eoarchaean Færingehavn terrane and the Meso- to Neoarchaean Akia terrane. The gold is associated with either löllingite (FeAs) + arsenopyrite or pyrrhotite, which belong with the amphibolite facies silicate mineral assemblages. Zircons were U/Pb dated by SHRIMP to constrain the timing of mineralisation. The 2700–2830 Ma oscillatory-zoned, high Th/U volcano-sedimentary zircon as whole grains and cores are interpreted to give the maximum depositional age of the rocks hosting the …
Comment On "A Vestige Of Earth's Oldest Ophiolite", Allen P. Nutman, Clark R. L Friend
Comment On "A Vestige Of Earth's Oldest Ophiolite", Allen P. Nutman, Clark R. L Friend
Faculty of Science - Papers (Archive)
No abstract provided.
Mimicking Phosphorylation Of Alphab-Crystallin Affects Its Chaperone Activity, Heath W. Ecroyd, Sarah Meehan, J Horwitz, Andrew Aquilina, J L Benesch, C V Robinson, Cait Macphee, John Carver
Mimicking Phosphorylation Of Alphab-Crystallin Affects Its Chaperone Activity, Heath W. Ecroyd, Sarah Meehan, J Horwitz, Andrew Aquilina, J L Benesch, C V Robinson, Cait Macphee, John Carver
Faculty of Science - Papers (Archive)
No abstract provided.
Potential Roles Of Abundant Extracellular Chaperones In The Control Of Amyloid Formation And Toxicity, Mark R. Wilson, Justin J. Yerbury, Stephen Poon
Potential Roles Of Abundant Extracellular Chaperones In The Control Of Amyloid Formation And Toxicity, Mark R. Wilson, Justin J. Yerbury, Stephen Poon
Faculty of Science - Papers (Archive)
The in vivo formation of fibrillar proteinaceous deposits called amyloid is associated with more than 40 serious human diseases, collectively referred to as protein deposition diseases. In many cases the amyloid deposits are extracellular and are found associated with newly identified abundant extracellular chaperones (ECs). Evidence is presented suggesting an important regulatory role for ECs in amyloid formation and disposal in the body. A model is presented which proposes that, under normal conditions, ECs stabilize extracellular misfolded proteins by binding to them, and then guide them to specific cell receptors for uptake and subsequent degradation. Thus ECs and their receptors …
An Alternative Approach To Coal Mine Site Water Management: A Case Study On West Cliff Colliery, Antony Volcich, Stephen A. Short, Adrian C. Hutton, Robert John Morrison
An Alternative Approach To Coal Mine Site Water Management: A Case Study On West Cliff Colliery, Antony Volcich, Stephen A. Short, Adrian C. Hutton, Robert John Morrison
Faculty of Science - Papers (Archive)
The provision of water supply, its usage and discharge, are major concerns for all mines, often accounting for a significant portion of the daily running costs. To reduce these costs, mines will collect as much site runoff as possible, and recycle the water whenever economically feasible. The constant recycling of on-site waters can mean that, over time, the levels of salinity, acidity or alkalinity, or other contaminants may build up within the internal water management system to a point which may lead to problems with licensed discharge requirements. This project investigated the water quality at West Cliff Colliery, in order …
Smart Nanotextiles: A Review Of Materials And Applications, Gordon G. Wallace, Danilo De Rossi, Yanzhe Wu, King-Tong Lau, Shirley Coyle, Dermot Diamond
Smart Nanotextiles: A Review Of Materials And Applications, Gordon G. Wallace, Danilo De Rossi, Yanzhe Wu, King-Tong Lau, Shirley Coyle, Dermot Diamond
Faculty of Science - Papers (Archive)
The development of smart nanotextiles has the potential to revolutionize the functionality of our clothing and the fabrics in our surroundings. Nanoscale manipulation results in new functionalities for intelligent textiles, including self-cleaning, sensing, actuating, and communicating. This is made possible by such developments as new materials, fibers, and finishings; inherently conducting polymers; carbon nanotubes; and antimicrobial nanocoatings. These additional functionalities have numerous applications, encompassing healthcare, sports, military applications, and fashion. The wearer and the surrounding environment may be monitored in an innocuous manner, giving continuous updates of individual health status or environmental hazards. More generally, smart textiles become a critical …
Conducting Polymers With Fibrillar Morphology Synthesized In A Biphasic Ionic Liquid/Water System, J.M. Pringle, Orawan Ngamna, Carol M. Lynam, Gordon G. Wallace, Maria Forsyth, Douglas Macfarlane
Conducting Polymers With Fibrillar Morphology Synthesized In A Biphasic Ionic Liquid/Water System, J.M. Pringle, Orawan Ngamna, Carol M. Lynam, Gordon G. Wallace, Maria Forsyth, Douglas Macfarlane
Faculty of Science - Papers (Archive)
The synthesis of poly(pyrrole), poly(terthiophene), and poly(3,4-ethylenedioxythiophene) with unusual fibrillar morphologies has been achieved by chemical polymerization in a biphasic ionic liquid/water system. Use of aqueous gold chloride as the oxidant, with the monomers dissolved in a hydrophobic ionic liquid, allows the polymerization to occur at the ionic liquid/water interface. The resultant conducting polymer fibrils are, on average, 50−100 nm wide and can be thousands of nanometers long. The polymers produced in this ionic liquid system are compared to those synthesized in a biphasic chloroform/water system.
Reef Development At High-Latitudes During Multiple Interglacial Cycles: New Evidence From Lord Howe Island, Southwestern Pacific, David Kennedy, Colin D. Woodroffe, J -X Zhao
Reef Development At High-Latitudes During Multiple Interglacial Cycles: New Evidence From Lord Howe Island, Southwestern Pacific, David Kennedy, Colin D. Woodroffe, J -X Zhao
Faculty of Science - Papers (Archive)
Reef development during past Interglacial periods, when sea level and sea surface temperatures were higher than today, provide unique insights into how reef systems may respond to projected human-induced global warming. Lord Howe Island currently represents the southernmost limit of reef development in the Pacific. Reef growth of Pleistocene age has been inferred to have occurred around the island, and this paper provides the fi rst detailed descriptions on the character of this development. Two phases of reef growth are identifi ed, which occurred as isolated fringing reefs along the edge of the basaltic hills of the island. Uranium-series dating …
Air-Drying Of Banana: Influence Of Experimental Parameters, Slab Thickness, Banana Maturity And Harvesting Season, Minh-Hue Nguyen, William E. Price
Air-Drying Of Banana: Influence Of Experimental Parameters, Slab Thickness, Banana Maturity And Harvesting Season, Minh-Hue Nguyen, William E. Price
Faculty of Science - Papers (Archive)
Air-drying of banana slabs has been investigated and the influence of experimental parameters such as temperature, relative humidity and slab thickness has been studied. This was in part re-investigated because of inconsistencies in previous studies, particularly in relation to derived water diffusion coefficients. In addition, it is shown that harvest season and hence initial moisture content has a very marked influence on the drying kinetics. By contrast banana maturity (ripeness) has little influence on the kinetics despite there being significant differences in morphology and chemical composition between green and ripe bananas. The effect of these two variables on the drying …
The Importance Of Slime: Does Living In A Community Matrix Save Algal Cells From The Toxic Effects Of Copper?, Jacqueline Levy, Dianne F. Jolley, Jenny L. Stauber
The Importance Of Slime: Does Living In A Community Matrix Save Algal Cells From The Toxic Effects Of Copper?, Jacqueline Levy, Dianne F. Jolley, Jenny L. Stauber
Faculty of Science - Papers (Archive)
Microscopic algae are often used to assess the toxic effects of chemicals to the environment. They are good indicators of ecosystem health because they form the basis of the aquatic food chain and many algal species are sensitive to metals, like copper, at concentrations which occur naturally in the environment. Most toxicity tests with algae use planktonic species, that is, alga that live in the water as free-living species. To date, little research has been done on the toxicity of metals to attached algal species living in a community matrix known as biofilms, because of the difficulties in quantifying changes …
Characteristics And Error Estimation Of Stratospheric Ozone And Ozone-Related Species Over Poker Flat (65°N, 147°W), Alaska Observed By A Ground-Based Ftir Spectrometer From 2001-2003, A. Kagawa, Y. Kasai, Nicholas Jones, M. Yamamori, K. Seki, F. Murcray, Y. Murayama, K. Mizutani, T. Itabe
Characteristics And Error Estimation Of Stratospheric Ozone And Ozone-Related Species Over Poker Flat (65°N, 147°W), Alaska Observed By A Ground-Based Ftir Spectrometer From 2001-2003, A. Kagawa, Y. Kasai, Nicholas Jones, M. Yamamori, K. Seki, F. Murcray, Y. Murayama, K. Mizutani, T. Itabe
Faculty of Science - Papers (Archive)
It is important to obtain the year-to-year trend of stratospheric minor species in the context of global changes. An important example is the trend in global ozone depletion. The purpose of this paper is to report the accuracy and precision of measurements of stratospheric chemical species that are made at our Poker Flat site in Alaska (65◦ N, 147◦ W). Since 1999, minor atmospheric molecules have been observed using a Fourier-Transform solar-absorption infrared Spectrometer (FTS) at Poker Flat. Vertical profiles of the abundances of ozone, HNO3, HCl, and HF for the period from 2001 to 2003 were retrieved from FTS …
Mechanochemical Coupling In The Myosin Motor Domain. I. Insights From Equilibrium Active-Site Simulations, Haibo Yu, Liang Ma, Yang Yang, Qiang Cui
Mechanochemical Coupling In The Myosin Motor Domain. I. Insights From Equilibrium Active-Site Simulations, Haibo Yu, Liang Ma, Yang Yang, Qiang Cui
Faculty of Science - Papers (Archive)
Although the major structural transitions in molecular motors are often argued to couple to the binding of Adenosine triphosphate (ATP), the recovery stroke in the conventional myosin has been shown to be dependent on the hydrolysis of ATP. To obtain a clearer mechanistic picture for such ‘‘mechanochemical coupling’’ in myosin, equilibrium active-site simulations with explicit solvent have been carried out to probe the behavior of the motor domain as functions of the nucleotide chemical state and conformation of the converter/relay helix. In conjunction with previous studies of ATP hydrolysis with different active-site conformations and normal mode analysis of structural flexibility, …
Free Fatty Acids From The Crude Hexane Extract Of The Aerial Parts Of Heliotropium Indicum Linn. Growing In Phitsanulok, Thailand, Theeraphan Machan, Jurgen Korth, Boonsom Liawruangrath, Saisunee Liawruangrath, Apiwat Baramee, Stephen G. Pyne
Free Fatty Acids From The Crude Hexane Extract Of The Aerial Parts Of Heliotropium Indicum Linn. Growing In Phitsanulok, Thailand, Theeraphan Machan, Jurgen Korth, Boonsom Liawruangrath, Saisunee Liawruangrath, Apiwat Baramee, Stephen G. Pyne
Faculty of Science - Papers (Archive)
Sixteen free fatty acids from the crude hexane extract of the aerial parts of Heliotropium indicum Linn. growing in Phitsanulok, Thailand, have been identified after conversion to their methyl esters with boron trifluoride-methanol followed by quantification by GC-FID and identification by GC-MS analysis. They accounted for 95% of the chromatographable components, with 9,12-octadecadienoic acid, (39.7%), 9-octadecenoic acid (32.4%), hexadecanoic acid (14.2%) and octadecanoic acid (5.1%), as the major constituents. A small amount of 6,10,14-trimethyl-2-pentadecanone and 3,7,11,15-tetramethyl-2-hexadecen-1-ol as well as a homologous series of n-alkanes present at trace level and ranging from C25 to C31 was also found …
Sensitivity Of Marine Microalgae To Copper: The Effect Of Biotic Factors On Copper Adsorption And Toxicity, Jacqueline Levy, Jenny L. Stauber, Dianne F. Jolley
Sensitivity Of Marine Microalgae To Copper: The Effect Of Biotic Factors On Copper Adsorption And Toxicity, Jacqueline Levy, Jenny L. Stauber, Dianne F. Jolley
Faculty of Science - Papers (Archive)
Microalgae are sensitive indicators of environmental change and, as the basis of most freshwater and marine ecosystems, are widely used in the assessment of risk and development of environmental regulations for metals. However, interspecies differences in sensitivity to metals are not well understood. The relationship between metal-algal cell binding and copper sensitivity of marine microalgae was investigated using a series of 72-h growth-rate inhibition bioassays and short-term (1-h) uptake studies. A range of marine algae from different taxonomic groups were screened to determine whether copper adsorption to the cell membrane was influenced by biotic factors, such as the ultrastructure of …
Some Approaches To New Antibacterial Agents, John B. Bremner
Some Approaches To New Antibacterial Agents, John B. Bremner
Faculty of Science - Papers (Archive)
Bacteria use a number of resistance mechanisms to counter the antibacterial challenge, and one of these is the expression of transmembrane protein-based efflux pumps which can pump out antibacterials from within the cells, thus lowering the antibacterial concentration to nonlethal levels. For example, in S. aureus, the NorA pump can pump out the antibacterial alkaloid berberine and ciprofloxacin. One general strategy to reduce the health threat of resistant bacteria is to block a major bacterial resistance mechanism at the same time as interfering with another bacterial pathway or target site. New developments of this approach in the context of dual-action …
Incremental Accretion Of A Sandy Reef Island Over The Past 3000 Years Indicated By Component-Specific Radiocarbon Dating, Colin D. Woodroffe, Bongkoch Samosorn, Q Hua, Deirdre E. Hart
Incremental Accretion Of A Sandy Reef Island Over The Past 3000 Years Indicated By Component-Specific Radiocarbon Dating, Colin D. Woodroffe, Bongkoch Samosorn, Q Hua, Deirdre E. Hart
Faculty of Science - Papers (Archive)
Low-lying reef islands appear particularly threatened by anticipated sea-level rise, and determining how they formed and whether they are continuing to accumulate sediment is essential for their sustainable management. Depositional chronology of Warraber Island, a small sand cay in Torres Strait, Australia, is re-examined based on AMS radiocarbon dating of specific skeletal components. Whereas radiometric dating of bulk sand samples indicated one or more discrete phases of mid-late Holocene deposition, component-specific AMS radiocarbon dating of sand grains indicates sustained incremental growth over the past 3000 years. Ages on gastropods that lived on the reef flat around the island indicate continuing …
Stratomesospheric Co Measured By A Ground-Based Fourier Transform Spectrometer Over Poker Flat, Alaska: Comparisons With Odin/Smr And A 2-D Model, Nicholas B. Jones, Y Kasai, E Dupuy, Y. Murayama, J Urban, B Barret, M Sinnhuber, A. Kagawa, T. Koshiro, P Ricaud, D Murtagh
Stratomesospheric Co Measured By A Ground-Based Fourier Transform Spectrometer Over Poker Flat, Alaska: Comparisons With Odin/Smr And A 2-D Model, Nicholas B. Jones, Y Kasai, E Dupuy, Y. Murayama, J Urban, B Barret, M Sinnhuber, A. Kagawa, T. Koshiro, P Ricaud, D Murtagh
Faculty of Science - Papers (Archive)
The interseasonal variability of stratomesospheric CO is reported from Poker Flat, Alaska, using spectra from a ground-based Fourier Transform Spectrometer (gb-FTS) for the time period from 2000 to 2004. The CO spectra were analyzed using an optimal estimation technique that separates the tropospheric and stratospheric/mesospheric components into partial columns. The distribution of CO in the polar winter is such that the gb-FTS retrieved partial column is weighted to the mesosphere. The gb-FTS data are compared with measurements of partial column CO from the Sub-Millimeter Radiometer on board the Odin satellite and shown to be in very good agreement despite the …
The Itsaq Gneiss Complex Of Southern West Greeland And The Construction Of Eoarchaean Crust At Convergent Plate Boundaries, Allen P. Nutman, Clark R. L Friend, Kenji Horie, Hiroshi Hidaka
The Itsaq Gneiss Complex Of Southern West Greeland And The Construction Of Eoarchaean Crust At Convergent Plate Boundaries, Allen P. Nutman, Clark R. L Friend, Kenji Horie, Hiroshi Hidaka
Faculty of Science - Papers (Archive)
The ca. 3000 km2ItsaqGneissComplex of the Nuuk region, southernWestGreenland was the first body of pre-3600 Ma crust discovered. Such ancient gneisses are now also known elsewhere, but in total form only about a millionth of the modern crust. The other 99.9999% of ancient crust was destroyed by melting and erosion over billions of years. Understanding the origin of this oldest crust is hampered by metamorphism (repeatedly) in the amphibolite or granulite facies, and most of it having been strongly deformed. The ItsaqGneissComplex is dominated by polyphase grey gneisses derived from several suites of tonalites, granites and subordinate quartz-diorites and ferro-gabbros …
~3,850 Ma Tonalites In The Nuuk Region, Greenland: Geochemistry And Their Reworking Within An Eoarchaean Gneiss Complex, Allen P. Nutman, Vickie C. Bennett, Clark R. L Friend, Kenji Horie, Hiroshi Hidaka
~3,850 Ma Tonalites In The Nuuk Region, Greenland: Geochemistry And Their Reworking Within An Eoarchaean Gneiss Complex, Allen P. Nutman, Vickie C. Bennett, Clark R. L Friend, Kenji Horie, Hiroshi Hidaka
Faculty of Science - Papers (Archive)
The Eoarchaean (>3,600 Ma) Itsaq Gneiss Complex of southern West Greenland is dominated by polyphase orthogneisses with a complex Archaean tectonothermal history. Some of the orthogneisses have c. 3,850 Ma zircons, and they vary from rare single phase metatonalites to more common complexly banded migmatites. This is due to heterogeneous strain, in situ anatexis and granitic veining superimposed during younger tectonothermal events. In the single-phase tonalites with c. 3,850 Ma zircon, oscillatory-zoned prismatic zircon is all 3,850 Ma old, but shows patchy ancient loss of radiogenic Pb. SHRIMP spot analyses and laser ablation ICP-MS depth profiling show that thin …
Anisotropic Atomic Motions In High-Resolution Protein Crystallography Molecular Dynamics Simulations, Conrad J. Burden, Aaron J. Oakley
Anisotropic Atomic Motions In High-Resolution Protein Crystallography Molecular Dynamics Simulations, Conrad J. Burden, Aaron J. Oakley
Faculty of Science - Papers (Archive)
Molecular dynamics (MD) simulations using empirical force fields are popular for the study of proteins. In this work, we compare anisotropic atomic fluctuations in nanosecond-timescale MD simulations with those observed in an ultra-high-resolution crystal structure of crambin. In order to make our comparisons, we have developed a compact graphical technique for assessing agreement between spatial atomic distributions determined by MD simulations and observed anisotropic temperature factors.
Crystallization And Diffraction Data Of 1h-3-Hydroxy-4-Oxoquinoline 2,4-Dioxygenase: A Cofactor-Free Oxygenase Of The Alpha/Beta-Hydrolase Family, Ruhu Qi, Susanne Fetzner, Aaron J. Oakley
Crystallization And Diffraction Data Of 1h-3-Hydroxy-4-Oxoquinoline 2,4-Dioxygenase: A Cofactor-Free Oxygenase Of The Alpha/Beta-Hydrolase Family, Ruhu Qi, Susanne Fetzner, Aaron J. Oakley
Faculty of Science - Papers (Archive)
1H-3-Hydroxy-4-oxoquinoline 2,4-dioxygenase (QDO) from Pseudomonas putida 33/1 catalyses the oxygenolysis of 1H-3-hydroxy-4-oxoquinoline to form N-formylanthranilic acid and carbon monoxide without the aid of cofactors. Both N-terminally His6-tagged and native QDO were overexpressed in Escherichia coli and purified by conventional chromatographic procedures. Untagged QDO, but not His6-tagged QDO, was crystallized by the vapour-diffusion method, giving hexagonal bipyramid crystals belonging to space group P6(1)22. Selenomethionine-containing native QDO was prepared and crystallized under identical conditions. The unit-cell parameters were a = b = 90.1, c = 168.6 A, alpha = beta = 90, gamma = 120 degrees. Using synchrotron radiation, these crystals diffract …
Validation And Data Characteristics Of Methane And Nitrous Oxide Profiles Observed By Mipas And Processed With Version 4.61 Algorithm, S Payan, C Camy-Peyret, H Oelhaf, G Wetzel, G Maucher, Nicholas B. Jones, S Wood, M De Maziere, T Blumenstock, P Duchatelet, D Smale, G Bianchini, G Redaelli, F Mencaraglia, M Pirre, N Huret, C Piccolo, U Cortesi, C Keim, N Glatthor, S Mikuteit, G P. Stiller, C Vigouroux, A Engel, M C. Volk, J Kuttippurath, H Kuellmann, P Raspollini, M Mahieu, V Payne, A Bracher, K Grunow, P Jeseck, Y Te, K Pfeilsticker, A Butz, Justus Notholt, Voltaire A. Velazco
Validation And Data Characteristics Of Methane And Nitrous Oxide Profiles Observed By Mipas And Processed With Version 4.61 Algorithm, S Payan, C Camy-Peyret, H Oelhaf, G Wetzel, G Maucher, Nicholas B. Jones, S Wood, M De Maziere, T Blumenstock, P Duchatelet, D Smale, G Bianchini, G Redaelli, F Mencaraglia, M Pirre, N Huret, C Piccolo, U Cortesi, C Keim, N Glatthor, S Mikuteit, G P. Stiller, C Vigouroux, A Engel, M C. Volk, J Kuttippurath, H Kuellmann, P Raspollini, M Mahieu, V Payne, A Bracher, K Grunow, P Jeseck, Y Te, K Pfeilsticker, A Butz, Justus Notholt, Voltaire A. Velazco
Faculty of Science - Papers (Archive)
The ENVISAT validation programme for the atmospheric instruments MIPAS, SCIAMACHY and GOMOS is based on a number of balloon-bone, aircraft and ground-based correlative measurements. In particular the activities of validation scientists were coordinated by ESA within the ENVISAT Stratospheric Aircraft and Balloon Campaign of ESABC. As part of a series of similar papers on other species [this issue] and in parallel to the contribution of the individual validation teams, the present paper provides a synthesis of comparisons performed between MIPAS CH4 and N2O profiles produced by the current ESA operational software (Instrument Processing Facility version 4.61 or IPF v4.61) and …