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Full-Text Articles in Physical Sciences and Mathematics

Evidence For Specific Subunit Distribution And Interactions In The Quaternary Structure Of Α-Crystallin, Amie M. Morris, J. Andrew Aquilina Jan 2010

Evidence For Specific Subunit Distribution And Interactions In The Quaternary Structure Of Α-Crystallin, Amie M. Morris, J. Andrew Aquilina

Faculty of Science - Papers (Archive)

The quaternary structure of α-crystallin is dynamic, a property which has thwarted crystallographic efforts towards structural characterization. In this study, we have used collision-induced dissociation mass spectrometry to examine the architecture of the polydisperse assemblies of α-crystallin. For total α-crystallin isolated directly from fetal calf lens using size-based chromatography, the αB-crystallin subunit was found to be preferentially dissociated from the oligomers, despite being significantly less abundant overall than the αA-crystallin subunits. Furthermore, upon mixing molar equivalents of purified αA- and αB-crystallin, the levels of their dissociation were found to decrease and increase, respectively, with time. Interestingly though, dissociation of subunits …


Elastic Scattering Studies Of Aligned Dmpc Multilayers On Different Hydrations, Marcus Trapp, Fanni Juranyi, Moeava Tehei, Lambert Van Eijck, Bruno Demé, Thomas Gutberlet, Judith Peters Jan 2010

Elastic Scattering Studies Of Aligned Dmpc Multilayers On Different Hydrations, Marcus Trapp, Fanni Juranyi, Moeava Tehei, Lambert Van Eijck, Bruno Demé, Thomas Gutberlet, Judith Peters

Faculty of Science - Papers (Archive)

Biological membranes, consisting mainly of phospholipids and proteins, are organized in a bilayered structure which exhibits dynamical behaviour within time regimes ranging from 10-12 s with the motion of alkyl chain defects and 1 s corresponding to collective excitations of the bilayer [1]. With the prominent role hydration plays on the structural phase behaviour of phospholipids membranes, it is essential for a better description of membranes to understand also the influence of hydration on the dynamics of membrane systems. In the present study we have performed neutron scattering investigations on highly oriented DMPC-d54 multilayers at two different relative humidity (rh) …


Localization Of Low Molecular Weight Crystallin Peptides In The Aging Human Lens Using A Maldi Mass Spectrometry Imaging Approach, S. P. Su, Jason D. Mcarthur, J. A. Aquilina Jan 2010

Localization Of Low Molecular Weight Crystallin Peptides In The Aging Human Lens Using A Maldi Mass Spectrometry Imaging Approach, S. P. Su, Jason D. Mcarthur, J. A. Aquilina

Faculty of Science - Papers (Archive)

Low molecular weight (LMW) peptides, derived from the breakdown of the major eye lens proteins, the crystallins, accumulate in the human lens with age. These LMW peptides are associated with age-related lens opacity and cataract, with some shown to inhibit the chaperone activity of α-crystallin. However, the mechanism(s) giving rise to the production of these peptides, as well as their distribution within the lens, are not well understood. In this study, we have mapped the distribution of these crystallin-derived peptides present in human lenses of different ages using matrix-assisted laser desorption/ionization-imaging mass spectrometry (MALDI-IMS). Our data showed that most of …


And Then There Were None?, Richard G. Roberts, Barry W. Brook Jan 2010

And Then There Were None?, Richard G. Roberts, Barry W. Brook

Faculty of Science - Papers (Archive)

No abstract provided.


Effect Of Two Types Of Tree Guards (With And Without Weed Control) On Tree Seedling Establishment, Brenton Ladd, Stephen P. Bonser, Joshua R. Larsen Jan 2010

Effect Of Two Types Of Tree Guards (With And Without Weed Control) On Tree Seedling Establishment, Brenton Ladd, Stephen P. Bonser, Joshua R. Larsen

Faculty of Science - Papers (Archive)

No abstract provided.


Age And Origin Of Alluvial Sediments Within And Flanking The Mt Lofty Ranges, Southern South Australia: A Late Quaternary Archive Of Climate And Environmental Change, D Banerjee, N F. Alley, R P. Bourman, S Buckman, J R. Prescott Jan 2010

Age And Origin Of Alluvial Sediments Within And Flanking The Mt Lofty Ranges, Southern South Australia: A Late Quaternary Archive Of Climate And Environmental Change, D Banerjee, N F. Alley, R P. Bourman, S Buckman, J R. Prescott

Faculty of Science - Papers (Archive)

No abstract provided.


Formaldehyde And Nitrogen Dioxide In Smoke Plumes From Australia's Black Saturday Fires, Emma Young, Clare Paton-Walsh Jan 2010

Formaldehyde And Nitrogen Dioxide In Smoke Plumes From Australia's Black Saturday Fires, Emma Young, Clare Paton-Walsh

Faculty of Science - Papers (Archive)

The ‘Black Saturday’ fires were a series of devastating bushfires that burned across Victoria, Australia, during February 2009. The smoke plume from Saturday the 7th February, the worst day of the fires, separated from subsequent emissions and persisted for several weeks, providing the opportunity to track the changing composition of the smoke plume as it aged. In this study we have used satellite data from the Ozone Monitoring Instrument (OMI) and the Atmospheric InfraRed Sounder (AIRS) to characterise the emissions of formaldehyde and nitrogen dioxide from the fires. Emission ratios with respect to carbon monoxide are determined for formaldehyde (0.017 …


Synthesis Of Hyacinthacine B-3 And Purported Hyacinthacine B-7, Christopher W.G. Au, Robert J. Nash, Stephen G. Pyne Jan 2010

Synthesis Of Hyacinthacine B-3 And Purported Hyacinthacine B-7, Christopher W.G. Au, Robert J. Nash, Stephen G. Pyne

Faculty of Science - Papers (Archive)

The synthesis of hyacinthacines B-3 and B-7 has confirmed the structure of the former alkaloid and shown that the structure of the latter is incorrect.


Crosslinking Neat Ultrathin Films And Nanofibres Of Ph-Responsive Poly(Acrylic Acid) By Uv Radiation, Adrian Gestos, Philip G. Whitten, Geoffrey Maxwell Spinks, Gordon G. Wallace Jan 2010

Crosslinking Neat Ultrathin Films And Nanofibres Of Ph-Responsive Poly(Acrylic Acid) By Uv Radiation, Adrian Gestos, Philip G. Whitten, Geoffrey Maxwell Spinks, Gordon G. Wallace

Faculty of Science - Papers (Archive)

Electrospun polyelectrolyte hydrogel nanofibres are being developed for many applications including artificial muscles, scaffolds for tissue engineering, wound dressings and controlled drug release. For electrospun polyelectrolytes, a post-spinning crosslinking process is necessary for producing a hydrogel. Typically, radiation or thermal crosslinking routines are employed that require multifunctional crosslinking molecules and crosslink reaction initiators (free radical producers). Here, ultraviolet subtype-C (UVC) radiation was employed to crosslink neat poly(acrylic acid) (PAA) nanofibres and films to different crosslink densities. Specific crosslink initiators or crosslinking molecules are not necessary in this fast and simple process providing an advantage for biological applications. Scanning probe microscopy …


Dipyridyl Beta-Diketonate Complexes: Versatile Polydentate Metalloligands For Metal-Organic Frameworks And Hydrogen-Bonded Networks, Andrew D. Burrows, Christopher G. Frost, Mary F. Mahon, Paul R. Raithby, Catherine L. Renouf, Christopher Richardson, Anna J. Stevenson Jan 2010

Dipyridyl Beta-Diketonate Complexes: Versatile Polydentate Metalloligands For Metal-Organic Frameworks And Hydrogen-Bonded Networks, Andrew D. Burrows, Christopher G. Frost, Mary F. Mahon, Paul R. Raithby, Catherine L. Renouf, Christopher Richardson, Anna J. Stevenson

Faculty of Science - Papers (Archive)

The Group 13 metal complexes [M(L-2)(3)], where M is Al or Ga and L-2 is 1,3-di(4-pyridyl)-1,3-propanedionato, are hexatopic metalloligands that have been used to prepare mixed-metalorganic frameworks containing interpenetrated primitive cubic networks. In contrast, the europium complex [Eu(HL2)(3)-(H2L2)]Cl-4 center dot EtOH forms a hydrogen-bonded network following partial protonation of the pyridyl groups.


Advanced Microwave-Assisted Production Of Hybrid Electrodes For Energy Applications, Peter Sherrell, Jun Chen, Joselito M. Razal, Ivan P. Nevirkovets, Carol Crean, Andrew I. Minett, Gordon G. Wallace Jan 2010

Advanced Microwave-Assisted Production Of Hybrid Electrodes For Energy Applications, Peter Sherrell, Jun Chen, Joselito M. Razal, Ivan P. Nevirkovets, Carol Crean, Andrew I. Minett, Gordon G. Wallace

Faculty of Science - Papers (Archive)

Carbon nanotubes are one of the most prominent materials in research for creating electrodes for portable electronics. When coupled with metallic nanoparticles the performance of carbon nanotube electrodes can be dramatically improved. Microwave reduction is an extremely rapid method for producing carbon nanotube-metallic nanoparticle composites, however this technique has so far been limitied to carbon nanotube soot. An understanding of the microwave process and the interactions of metallic nanoparticles with carbon nanotubes has allowed us to extend this promising functionalisation route to pre-formed CNT elelctrode architectures. Nanoparticle reduction onto pre-formed architectures reduces metallic nanoparticle waste as particles are not formed …


Esi-Ms And Thermal Melting Studies Of Nanoscale Platinum(Ii) Metallomacrocycles With Dna, Margaret M. Harding, Louis M. Rendina, David Schilter, Thitima Urathamakul, Jennifer L. Beck Jan 2010

Esi-Ms And Thermal Melting Studies Of Nanoscale Platinum(Ii) Metallomacrocycles With Dna, Margaret M. Harding, Louis M. Rendina, David Schilter, Thitima Urathamakul, Jennifer L. Beck

Faculty of Science - Papers (Archive)

The hydrophilic, long-chain diamine PEGda (O,O′-bis(2-aminoethyl)octadeca(ethylene glycol)), when complexed with cis-protected Pt(II) ions afforded water-soluble complexes of the type [Pt(N,N)(PEGda)](NO3)2 (N,N = N,N,N′,N′-tetramethyl-1,2-diaminoethane (tmeda), 1,2-diaminoethane (en), and 2,2′-bipyridine (2,2′-bipy)) featuring unusual 62-membered chelate rings. Equimolar mixtures containing either the 16-mer duplex DNA D2 or the single-stranded D2a and [Pt(N,N)(PEGda)]2+ were analyzed by negative-ion ESI-MS. Analysis of D2-Pt(II) mixtures showed the formation of 1:1 adducts of [Pt(en)(PEGda)]2+, [Pt(tmeda)(PEGda)]2+ and the previously-described metallomacrocycle [Pt2(2,2′-bipy)2{4,4′-bipy(CH2)44,4′-bipy}2]8+ with D2; the dinuclear species bound to D2 most strongly, consistent with its greater charge and aromatic surface area. D2 formed 1:2 complexes with the acyclic species [Pt(2,2′-bipy)(Mebipy)2]4+ …


In Vivo Measurement Of Plant Respiration, M. Ribas-Carbo, J. Flexas, Sharon A. Robinson, G. G.B. Tcherkez Jan 2010

In Vivo Measurement Of Plant Respiration, M. Ribas-Carbo, J. Flexas, Sharon A. Robinson, G. G.B. Tcherkez

Faculty of Science - Papers (Archive)

Respiration is vital; it is the essence of life. Respiration is the mechanism by which energy obtained during the photosynthesis process is transformed into biochemical energy, in the form of ATP. This transformation of energy keeps all cells in all organisms alive. While energy conversion is the main function of respiration in animals, respiration has several other functions in plants. Among them, interactions with photosynthesis such as photorespiration and the production of carbon skeletons for the many compounds synthesized in plants (e.g., pigments, proteins and secondary metabolites). Therefore, it comes as no surprise that such a key role of respiration …


Misidentification Of Tansy, Tanacetum Macrophyllum, As Yarrow, Achillea Grandifolia: A Health Risk Or Benefit?, Niko Radulovic, Polina Blagojevic, Danielle Skropeta, Aleksandra Zarubica, Bojan Zlatkovic, Radosav Palic´ Jan 2010

Misidentification Of Tansy, Tanacetum Macrophyllum, As Yarrow, Achillea Grandifolia: A Health Risk Or Benefit?, Niko Radulovic, Polina Blagojevic, Danielle Skropeta, Aleksandra Zarubica, Bojan Zlatkovic, Radosav Palic´

Faculty of Science - Papers (Archive)

Tansy, Tanacetum macrophyllum (Waldst. & Kit.) Sch. Bip., is often misidentified by herb collectors as yarrow, Achillea grand folia Friv. With the former, cases of poisoning induced by its ingestion are well documented, but the latter is widely used for ethnopharmacological purposes. The aim of this study was to estimate, based on the volatile metabolite profiles of the two species, the potential health risk connected with their misidentification. GC and GC-MS analysis of the essential oils hydrodistilled using a Clevenger-type apparatus from A. grandifolia, T macrophyllum, and two plant samples (reputedly of A. grandifolia, but in fact mixtures of A. …


Late Pliocene Age Of Glacial Deposits At Heidemann Valley East Antarctica: Evidence For The Last Major Glaciation In The Vestfold Hills, Eric Colhoun, Kevin W. Kiernan, Anne Mcconnell, P G Quilty, David Fink, Colin V. Murray-Wallace, J M Whitehead Jan 2010

Late Pliocene Age Of Glacial Deposits At Heidemann Valley East Antarctica: Evidence For The Last Major Glaciation In The Vestfold Hills, Eric Colhoun, Kevin W. Kiernan, Anne Mcconnell, P G Quilty, David Fink, Colin V. Murray-Wallace, J M Whitehead

Faculty of Science - Papers (Archive)

No abstract provided.


Materialising Masculinity: Men And Interior Design, Andrew Gorman-Murray Jan 2010

Materialising Masculinity: Men And Interior Design, Andrew Gorman-Murray

Faculty of Science - Papers (Archive)

No abstract provided.


Flexible And Compressible Goretex-Pedot Membrane Electrodes For Solid-State Dye-Sensitized Solar Cells, Attila J. Mozer, Dillip K. Panda, Sanjeev Gambhir, Anthony C. Romeo, Bjorn Winther-Jensen, Gordon G. Wallace Jan 2010

Flexible And Compressible Goretex-Pedot Membrane Electrodes For Solid-State Dye-Sensitized Solar Cells, Attila J. Mozer, Dillip K. Panda, Sanjeev Gambhir, Anthony C. Romeo, Bjorn Winther-Jensen, Gordon G. Wallace

Faculty of Science - Papers (Archive)

A porous, flexible electrode based on a PTFE (Teflon) membrane (Goretex) coated with a metallic current collector and a conducting polymer (poly(3,4-ethylenedioxythiophene), PEDOT) has been developed for applications in solidstate dye-sensitized solar cells. Its low sheet resistance and compressibility make it an ideal electrode on uneven TiO2 surfaces with high efficiency and reproducibility. The porous nature of the electrode enables the feed-through of reactants and treatment agents, which opens up exciting opportunities to interface these photoelectrochemical devices with electrocatalytic, energy conversion, and storage systems. Postfabrication bonding of the photoanode and the Goretex-Au-PEDOT electrode is demonstrated.


Novel Technique Shows Different Hydrophobic Chemical Signatures Of Exotic And Indigenous Plant Soils With Similar Effects Of Extracts On Indigenous Species Seedling Growth, Emilie-Jane Ens, Kristine O. French, John B. Bremner, Jurgen Korth Jan 2010

Novel Technique Shows Different Hydrophobic Chemical Signatures Of Exotic And Indigenous Plant Soils With Similar Effects Of Extracts On Indigenous Species Seedling Growth, Emilie-Jane Ens, Kristine O. French, John B. Bremner, Jurgen Korth

Faculty of Science - Papers (Archive)

Changes to ecosystem abiotic parameters are regarded as possible mechanisms facilitating plant invasion and community composition shifts. This study compared the hydrophobic chemical signatures of soil from exotic bitou bush (Chrysanthemoides monilifera spp. rotundata) invaded, indigenous acacia (Acacia longifolia var. sophorae) dominated and bare sand (unvegetated) habitats using a novel, rapid, capturing technique which utilised AmberliteA (R) XAD4 resin filled bags that were placed in situ. The hydrophobic chemical signature of the bitou bush soil extract was significantly different to the acacia soil and bare sand extracts. High concentrations of 18 sesquiterpenes dominated the hydrophobic signature of the bitou bush …


Shell Artefacts And Shell-Working Within The Lapita Cultural Complex, Katherine A. Szabo Jan 2010

Shell Artefacts And Shell-Working Within The Lapita Cultural Complex, Katherine A. Szabo

Faculty of Science - Papers (Archive)

Despite a consistent presence in the archaeological record of the Lapita cultural complex, and their omnipresence in the associated literature, the nature and range of shell artefacts recovered from Lapita sites has only been partially summarized at best. Considering the categories of raw material choice, working techniques, formal artefact types and curation, this article summarizes our current knowledge and points to areas for further research.


Train-Borne Measurements Of Tropical Methane Enhancements From Ephemeral Wetlands In Australia, Nicholas M. Deutscher, David W. T Griffith, Clare Paton-Walsh, Rittick Borah Jan 2010

Train-Borne Measurements Of Tropical Methane Enhancements From Ephemeral Wetlands In Australia, Nicholas M. Deutscher, David W. T Griffith, Clare Paton-Walsh, Rittick Borah

Faculty of Science - Papers (Archive)

We report greenhouse gas concentrations measured on a train covering a north-south transect through central Australia from north to south coast. During the monsoonal wet season we found significant enhancements in methane that correlate well with changing area of wetland inundation in Australian tropical savanna regions. We used a meteorological and air pollution model to quantify the ephemeral wetland fluxes necessary to cause the observed enhancements and estimate the constant Australian tropical wetland emissions. Annual Australian tropical ephemeral wetland fluxes are estimated at 0.4 +/- 0.2 Tg CH4, with permanent wetlands contributing a similar amount, 0.5 +/- 0.2 Tg CH4.


Estimated Total Emissions Of Trace Gases From The Canberra Wildfires Of 2003: A New Method Using Satellite Measurements Of Aerosol Optical Depth & The Mozart Chemical Transport Model, Clare Paton-Walsh, L Emmons, Stephen R. Wilson Jan 2010

Estimated Total Emissions Of Trace Gases From The Canberra Wildfires Of 2003: A New Method Using Satellite Measurements Of Aerosol Optical Depth & The Mozart Chemical Transport Model, Clare Paton-Walsh, L Emmons, Stephen R. Wilson

Faculty of Science - Papers (Archive)

In this paper we describe a new method for estimating trace gas emissions from large vegetation fires using satellite measurements of aerosol optical depth (AOD) at 550 nm, combined with an atmospheric chemical transport model. The method uses a threshold value to screen out normal levels of AOD that may be caused by raised dust, sea salt aerosols or diffuse smoke transported from distant fires. Using this method we infer an estimated total emission of 15±5 Tg of carbon monoxide, 0.05±0.02 Tg of hydrogen cyanide, 0.11±0.03 Tg of ammonia, 0.25±0.07 Tg of formaldehyde, 0.03±0.01 of acetylene, 0.10±0.03 Tg of ethylene, …


Response Of Coral Reefs To Climate Change: Expansion And Demise Of The Southernmost Pacific Coral Reef, Colin D. Woodroffe, Brendan P. Brooke, Michelle Linklater, David M. Kennedy, Brian G. Jones, Cameron Buchanan, Richard Mleczko, Quan Hua, Jian-Xin Zhao Jan 2010

Response Of Coral Reefs To Climate Change: Expansion And Demise Of The Southernmost Pacific Coral Reef, Colin D. Woodroffe, Brendan P. Brooke, Michelle Linklater, David M. Kennedy, Brian G. Jones, Cameron Buchanan, Richard Mleczko, Quan Hua, Jian-Xin Zhao

Faculty of Science - Papers (Archive)

Coral reefs track sea level and are particularly sensitive to changes in climate. Reefs are threatened by global warming, with many experiencing increased coral bleaching. Warmer sea surface temperatures might enable reef expansion into mid latitudes. Here we report multibeam sonar and coring that reveal an extensive relict coral reef around Lord Howe Island, which is fringed by the southernmost reef in the Pacific Ocean. The relict reef, in water depths of 25-50 m, flourished in early Holocene and covered an area more than 20 times larger than the modern reef. Radiocarbon and uranium-series dating indicates that corals grew between …


Hydration Dependent Studies Of Highly Aligned Multilayer Lipid Membranes By Neutron Scattering , Marcus Trapp, Thomas Gutberlet, Fanni Juranyi, T Unruh, Bruno Demé, Moeava Tehei, Judith Peters Jan 2010

Hydration Dependent Studies Of Highly Aligned Multilayer Lipid Membranes By Neutron Scattering , Marcus Trapp, Thomas Gutberlet, Fanni Juranyi, T Unruh, Bruno Demé, Moeava Tehei, Judith Peters

Faculty of Science - Papers (Archive)

We investigated molecular motions on a picoseconds timescale of 1,2-Dimyristoyl-sn- Glycero-3-Phosphocholine (DMPC) model membranes as a function of hydration by using elastic and quasielastic neutron scattering. Two different hydrations corresponding to approximately nine and twelve water molecules per lipid were studied, the latter being the fully hydrated state. In our study we focused on head group motions by using chain deuterated lipids. Information on in-plane and out-of-plane motions could be extracted by using solid supported DMPC multilayers. Our studies confirm and complete former investigations by K¨onig et al. and Rheinst¨adter et al. who describe the dynamics of lipidmembranes, but did …


Average Mass Scan Of The Total Ion Chromatogram Versus Percentage Chemical Composition In Multivariate Statistical Comparison Of Complex Volatile Mixtures, Niko Radulovic, Polina Blagojevic, Danielle Skropeta Jan 2010

Average Mass Scan Of The Total Ion Chromatogram Versus Percentage Chemical Composition In Multivariate Statistical Comparison Of Complex Volatile Mixtures, Niko Radulovic, Polina Blagojevic, Danielle Skropeta

Faculty of Science - Papers (Archive)

The analysis of complex volatile mixtures by gas chromatography-mass spectrometry (GC-MS) is a time-consuming process. It involves separation and identification of the components based on their retention times and fragmentation patterns, followed by determination of their relative percentages from integration of their peak areas. Herein we show that multivariate statistical analysis of the relative abundances of the m/z values obtained from the average mass scans (AMS) of the complex mixture is a faster and potentially more reliable method of assessing these mixtures. To achieve this, 15 model complex mixtures, were prepared comprising varying amounts of 10 different constituents. The AMS …


Learning How To Be An Academic - The Story Of A New Academic In The Sciences, Danielle Skropeta Jan 2010

Learning How To Be An Academic - The Story Of A New Academic In The Sciences, Danielle Skropeta

Faculty of Science - Papers (Archive)

No abstract provided.


Extracellular Chaperones Modulate The Effects Of Alzheimer's Patient Cerebrospinal Fluid On A Beta(1-42) Toxicity And Uptake , Justin J. Yerbury, Mark R. Wilson Jan 2010

Extracellular Chaperones Modulate The Effects Of Alzheimer's Patient Cerebrospinal Fluid On A Beta(1-42) Toxicity And Uptake , Justin J. Yerbury, Mark R. Wilson

Faculty of Science - Papers (Archive)

Alzheimer's disease is characterised by the inappropriate death of brain cells and accumulation of the A beta peptide in the brain. Thus, it is possible that there are fundamental differences between Alzheimer's disease patients and healthy individuals in their abilities to clear A beta from brain fluid and to protect neurons from A beta toxicity. In the present study, we examined (1) the cytotoxicity of Alzheimer's disease cerebrospinal fluid (CSF) compared to control CSF, (2) the ability of Alzheimer's disease and control CSF to protect cells from A beta toxicity and to promote cell-mediated clearance of A beta and lastly …


Population And Breeding Trends Of An Urban Coloniser: The Australian White Ibis, John Martin, Kris French, Richard Major Jan 2010

Population And Breeding Trends Of An Urban Coloniser: The Australian White Ibis, John Martin, Kris French, Richard Major

Faculty of Science - Papers (Archive)

Context. In the Sydney region, the population of Australian white ibis has dramatically increased from rare observations in the 1950s to a breeding season peak of 8900 in 2008, resulting with human -wildlife conflicts. Within natural habitats across the eastern states, the ibis population has declined, yet within urban environments ibis have been lethally managed for over 30 years. However, limited ecological and no regional population data are available for the Sydney region. Aims. The present study of ibis in the Sydney region aims to (1) establish the abundance of the population during the breeding and non-breeding seasons, (2) determine …


Ionic Liquid Electrolyte Porphyrin Dye Sensitised Solar Cells, Vanessa Armel, Jennifer Pringle, Maria Forsyth, Douglas Macfarlane, David L. Officer, Pawel W. Wagner Jan 2010

Ionic Liquid Electrolyte Porphyrin Dye Sensitised Solar Cells, Vanessa Armel, Jennifer Pringle, Maria Forsyth, Douglas Macfarlane, David L. Officer, Pawel W. Wagner

Faculty of Science - Papers (Archive)

Ionic liquid electrolytes based on a number of imidazolium, quaternary ammonium and phosphonium cations have been developed for porphyrin dye sensitised solar cells yielding efficiencies of up to 5.2% at 0.68 Sun.


Total Synthesis Of Uniflorine A, Casuarine, Australine, 3-Epi-Australine, And 3,7-Di-Epi-Australine From A Common Precursor, Thunwadee Ritthiwigrom, Anthony C. Willis, Stephen G. Pyne Jan 2010

Total Synthesis Of Uniflorine A, Casuarine, Australine, 3-Epi-Australine, And 3,7-Di-Epi-Australine From A Common Precursor, Thunwadee Ritthiwigrom, Anthony C. Willis, Stephen G. Pyne

Faculty of Science - Papers (Archive)

A flexible method for the diastereoselective total synthesis of the pyrrolizidine alkaloids Uniflorine A, casuarine, australine, and 3-epi-australine and the unnatural epimer 3,7-di-epi-australine from a common chiral 2,5-dihydropyrrole precursor is described.


The Importance Of Transport Model Uncertainties For The Estimation Of Co2 Sources And Sinks Using Satellite Measurements, S Houweling, I Aben, F.-M Breon, F Chevallier, N Deutscher, R Engelen, C Gerbig, D Griffith, K Hungershoefer, R Macatangay, J Marshall, J Notholt, W Peters, S Serrar Jan 2010

The Importance Of Transport Model Uncertainties For The Estimation Of Co2 Sources And Sinks Using Satellite Measurements, S Houweling, I Aben, F.-M Breon, F Chevallier, N Deutscher, R Engelen, C Gerbig, D Griffith, K Hungershoefer, R Macatangay, J Marshall, J Notholt, W Peters, S Serrar

Faculty of Science - Papers (Archive)

This study presents a synthetic model intercomparison to investigate the importance of transport model errors for estimating the sources and sinks of CO2 using satellite measurements. The experiments were designed for testing the potential performance of the proposed CO2 lidar A-SCOPE, but also apply to other space borne missions that monitor total column CO2. The participating transport models IFS, LMDZ, TM3, and TM5 were run in forward and inverse mode using common CO2 fluxes and initial concentrations. Simulated column averaged CO2 (xCO 2) mixing ratios vary between the models by σCombining double low line0.5 ppm over the continents and σCombining …