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Articles 31 - 60 of 118
Full-Text Articles in Social and Behavioral Sciences
The Effect Of Field-Collected Biofilms On The Toxicity Of Copper To A Marine Microalga (Tetraselmis Sp.) In Laboratory Bioassays, Jacqueline L. Levy, Jenny L. Stauber, Steven A. Wakelin, Dianne F. Jolley
The Effect Of Field-Collected Biofilms On The Toxicity Of Copper To A Marine Microalga (Tetraselmis Sp.) In Laboratory Bioassays, Jacqueline L. Levy, Jenny L. Stauber, Steven A. Wakelin, Dianne F. Jolley
Faculty of Science - Papers (Archive)
Standard algal growth rate inhibition bioassays can lack environmental realism and may over- or underestimate metal bioavailability in natural systems. In aquatic environments, algal species interact with other biota, including other algae, bacteria and biofilms. In this work, the feasibility of incorporating marine biofilms into 72h algal growth inhibition toxicity tests was explored. The effects of copper on Tetraselmis sp. were tested in the absence and presence of characterised field-collected biofilms. We hypothesised that the addition of biofilm would prevent copper toxicity to the alga primarily through interactions of the metal with other cells and biofilm exudates. The sensitivity …
Airborne And Ground-Based Measurements Of The Trace Gases And Particles Emitted By Prescribed Fires In The United States, I R. Burling, R J. Yokelson, S K. Akagi, S P. Urbanski, C E. Wold, David W. Griffith, T J. Johnson, J Reardon, D R. Weise
Airborne And Ground-Based Measurements Of The Trace Gases And Particles Emitted By Prescribed Fires In The United States, I R. Burling, R J. Yokelson, S K. Akagi, S P. Urbanski, C E. Wold, David W. Griffith, T J. Johnson, J Reardon, D R. Weise
Faculty of Science - Papers (Archive)
We have measured emission factors for 19 tracegas species and particulate matter (PM2.5) from 14 prescribedfires in chaparral and oak savanna in the southwesternUS, as well as conifer forest understory in the southeasternUS and Sierra Nevada mountains of California. These arelikely the most extensive emission factor field measurementsfor temperate biomass burning to date and the only publishedemission factors for temperate oak savanna fuels. This studyhelps to close the gap in emissions data available for temperatezone fires relative to tropical biomass burning. Wepresent the first field measurements of the biomass burningemissions of glycolaldehyde, a possible precursor for aqueousphase secondary organic aerosol …
Poly(T) Variation In Heteroderid Nematode Mitochondrial Genomes Is Predominantly An Artefact Of Amplification, Angelique H. Riepsamen, Tracey A. Gibson, Janet Rowe, David J. Chitwood, Sergei Subbotin, Mark P. Dowton
Poly(T) Variation In Heteroderid Nematode Mitochondrial Genomes Is Predominantly An Artefact Of Amplification, Angelique H. Riepsamen, Tracey A. Gibson, Janet Rowe, David J. Chitwood, Sergei Subbotin, Mark P. Dowton
Faculty of Science - Papers (Archive)
We assessed the rate of in vitro polymerase errors at polythymidine [poly(T)] tracts in the mitochondrial DNA (mtDNA) of a heteroderid nematode (Heterodera cajani). The mtDNA of these nematodes contain unusually high numbers of poly(T) tracts, and have previously been suggested to contain biological poly(T) length variation. However, using a cloned molecule, we observed that poly(T) variation was generated in vitro at regions containing more than six consecutive Ts. This artefactual error rate was estimated at 7.3 × 10−5 indels/poly(T) tract >6 Ts/cycle. This rate was then compared to the rate of poly(T) variation detected after the amplification of a …
Stereoselective Synthesis Of Two New Trihydroxylated Pyrrolidines Using A Meyer-Schuster Rearrangement, Nalivela K. Swamy, Stephen G. Pyne
Stereoselective Synthesis Of Two New Trihydroxylated Pyrrolidines Using A Meyer-Schuster Rearrangement, Nalivela K. Swamy, Stephen G. Pyne
Faculty of Science - Papers (Archive)
The synthesis of two new trihydroxylated pyrrolidines, in a highly diastereoselective manner, has been developed using the Meyer-Schuster rearrangement as a key step. C 2011 Taylor & Francis Group, LLC.
The Nubian Complex Of Dhofar, Oman: An African Middle Stone Age Industry In Southern Arabia, Jeffrey I. Rose, Vitaly I. Usik, Anthony E. Marks, Yamandu H. Hilbert, Christopher S. Galletti, Ash Parton, Jean Marie Geiling, Viktor Cerny, Mike W. Morley, Richard Roberts
The Nubian Complex Of Dhofar, Oman: An African Middle Stone Age Industry In Southern Arabia, Jeffrey I. Rose, Vitaly I. Usik, Anthony E. Marks, Yamandu H. Hilbert, Christopher S. Galletti, Ash Parton, Jean Marie Geiling, Viktor Cerny, Mike W. Morley, Richard Roberts
Faculty of Science - Papers (Archive)
Despite the numerous studies proposing early human population expansions from Africa into Arabia during the Late Pleistocene, no archaeological sites have yet been discovered in Arabia that resemble a specific African industry, which would indicate demographic exchange across the Red Sea. Here we report the discovery of a buried site and more than 100 new surface scatters in the Dhofar region of Oman belonging to a regionally-specific African lithic industry - the late Nubian Complex - known previously only from the northeast and Horn of Africa during Marine Isotope Stage 5, ~128,000 to 74,000 years ago. Two optically stimulated luminescence …
On The Growth Of National Geoparks In China: Distribution, Interpretation, And Regional Comparison, Guifang Yang, Zhenghong Chen, Mingzhong Tian, Fadong Wu, Robert A. L Wray, Yamin Ping
On The Growth Of National Geoparks In China: Distribution, Interpretation, And Regional Comparison, Guifang Yang, Zhenghong Chen, Mingzhong Tian, Fadong Wu, Robert A. L Wray, Yamin Ping
Faculty of Science - Papers (Archive)
Since the year 2000 China has created 139 National Geoparks; it started under the guidance of the former UNESCO's Division of Earth Science, and has therefore become one of the pioneers in this aspect. Many National Geoparks in China have been described over the past decade, but an understanding of the range of various landform features and their connection with geological and climatic constraints has not previously been published. Based on an increasing awareness of National Geoparks, the aim of this contribution is to provide a comprehensive overview of the National Geoparks of China by reviewing the geological heritage and …
Wild Type And Tangier Disease Abca1 Mutants Modulate Cellular Amyloid-Beta Production Independent Of Cholesterol Efflux Activity, Kim S. Woojin, Andrew F. Hill, Michael L. Fitzgerald, Mason W. Freeman, Genevieve Evin, Brett Garner
Wild Type And Tangier Disease Abca1 Mutants Modulate Cellular Amyloid-Beta Production Independent Of Cholesterol Efflux Activity, Kim S. Woojin, Andrew F. Hill, Michael L. Fitzgerald, Mason W. Freeman, Genevieve Evin, Brett Garner
Faculty of Science - Papers (Archive)
Cerebral amyloid-β (Aβ) deposition is a critical feature of Alzheimer’s disease. Aβ is derived from the amyloid-β protein precursor (AβPP) via two sequential cleavages that are mediated by β-secretase and the γ-secretase complex. Such amyloidogenic AβPP processing occurs in lipid raft microdomains of cell membranes and it is thought that modulating the distribution of lipids in rafts may regulate AβPP processing and Aβ production. Certain ATP-binding cassette (ABC) transporters regulate lipid transport across cell membranes and, as recent studies reveal, within membrane microdomains. ABCA1 also regulates Aβ metabolism in the brain although its direct impact on AβPP remains an open …
Electron Affinities, Well Depths, And Vibrational Spectroscopy Of Cis- And Trans-Hoco, Christopher J. Johnson, Michael E. Harding, Berwyck L. J Poad, John F. Stanton, Robert E. Continetti
Electron Affinities, Well Depths, And Vibrational Spectroscopy Of Cis- And Trans-Hoco, Christopher J. Johnson, Michael E. Harding, Berwyck L. J Poad, John F. Stanton, Robert E. Continetti
Faculty of Science - Papers (Archive)
We report vibrationally resolved photoelectron spectra of internally cold HOCO– and DOCO– anions at wavelengths near and well above the detachment threshold. These spectra are dominated by a strong Franck–Condon progression of three low-energy modes of the cis isomer, the first gas-phase measurement of these vibrations. Using highly resolved, near-threshold spectra we are able to reassign the electron affinities (EAs) of cis- and trans-HOCO to 1.51 ± 0.01 and 1.37 ± 0.01 eV, respectively. Using these EAs, well depths with respect to OH + CO are determined to be 1.07 ± 0.02 eV for trans-HOCO and 0.99 ± 0.02 eV …
Photoelectron-Photofragment Coincidence Spectroscopy In A Cryogenically Cooled Linear Electrostatic Ion Beam Trap, Christopher J. Johnson, Ben B. Shen, Berwyck L. J Poad, Robert E. Continetti
Photoelectron-Photofragment Coincidence Spectroscopy In A Cryogenically Cooled Linear Electrostatic Ion Beam Trap, Christopher J. Johnson, Ben B. Shen, Berwyck L. J Poad, Robert E. Continetti
Faculty of Science - Papers (Archive)
A cryogenically cooled linear electrostatic ion beam trap for use in photoelectron-photofragment coincidence (PPC) spectroscopy is described. Using this instrument, anions created in cold, low-dutycycle sources can be stored for many seconds in a ∼20 K environment to cool radiatively, removing energetic uncertainties due to vibrationally excited precursor anions. This apparatus maintains a well-collimated beam necessary for high-resolution fragment imaging and the high experimental duty cycle needed for coincidence experiments. Ion oscillation is bunched and phase-locked to a modelocked laser, ensuring temporal overlap between ion bunches and laser pulses and that ions are intersected by the laser only when travelling …
Corrigendum To ‘‘The Chaperone Action Of Bovine Milk As1- And As2-Caseins And Their Associated Form As-Casein’’ [Arch. Biochem. Biophys. 510 (2011) 42–52], Teresa M. Treweek, David C. Thorn, William E. Price, John A. Carver
Corrigendum To ‘‘The Chaperone Action Of Bovine Milk As1- And As2-Caseins And Their Associated Form As-Casein’’ [Arch. Biochem. Biophys. 510 (2011) 42–52], Teresa M. Treweek, David C. Thorn, William E. Price, John A. Carver
Faculty of Science - Papers (Archive)
No abstract provided.
Communication: New Insight Into The Barrier Governing Co2 Formation From Oh + Co, Christopher J. Johnson, Berwyck L. Poad, Ben B. Shen, Robert E. Continetti
Communication: New Insight Into The Barrier Governing Co2 Formation From Oh + Co, Christopher J. Johnson, Berwyck L. Poad, Ben B. Shen, Robert E. Continetti
Faculty of Science - Papers (Archive)
Despite its relative simplicity, the role of tunneling in the reaction OH + CO → H + CO(2) has eluded the quantitative predictive powers of theoretical reaction dynamics. In this study a one-dimensional effective barrier to the formation of H + CO(2) from the HOCO intermediate is directly extracted from dissociative photodetachment experiments on HOCO and DOCO. Comparison of this barrier to a computed minimum-energy barrier shows that tunneling deviates significantly from the calculated minimum-energy pathway, predicting product internal energy distributions that match those found in the experiment and tunneling lifetimes short enough to contribute significantly to the overall reaction. …
Analysis Of Macrobenthic Assemblages Of Lake Illawarra, New South Wales, B Li, Robert John Morrison
Analysis Of Macrobenthic Assemblages Of Lake Illawarra, New South Wales, B Li, Robert John Morrison
Faculty of Science - Papers (Archive)
1 - A survey of the macrobenthos community was carried out in Lake Illawarra, NSW, Australia, during April and May 2011. 2 - The aim of this study was to understand the current status of the characteristic macrobenthic fauna community, and the temporal changes over the past 30 years, as well as the impacts of anthropogenic activities on the benthic ecosystem. 3- Fifteen stations were selected as representative of three main areas of the lake (the entrance channel, the central basin and the sublittoral fringe), which might be impacted by different kinds of human activities. 4 - A total of …
Sources Of Carbonaceous Aerosols And Deposited Black Carbon In The Arctic In Winter-Spring: Implications For Radiative Forcing, Q Wang, D J. Jacob, J A. Fisher, J Mao, E M. Leibensperger, C C. Carouge, P Le Sager, Y Kondo, J L. Jimenez, M J. Cubison, S J. Doherty
Sources Of Carbonaceous Aerosols And Deposited Black Carbon In The Arctic In Winter-Spring: Implications For Radiative Forcing, Q Wang, D J. Jacob, J A. Fisher, J Mao, E M. Leibensperger, C C. Carouge, P Le Sager, Y Kondo, J L. Jimenez, M J. Cubison, S J. Doherty
Faculty of Science - Papers (Archive)
We use a global chemical transport model (GEOS-Chem CTM) to interpret observations of black carbon (BC) and organic aerosol (OA) from the NASA ARCTAS aircraft campaign over the North American Arctic in April 2008, as well as longer-term records in surface air and in snow (2007-2009). BC emission inventories for North America, Europe, and Asia in the model are tested by comparison with surface air observations over these source regions. Russian open fires were the dominant source of OA in the Arctic troposphere during ARCTAS but we find that BC was of prevailingly anthropogenic (fossil fuel and biofuel) origin, particularly …
Sources, Distribution, And Acidity Of Sulfate-Ammonium Aerosol In The Arctic In Winter-Spring, Jenny A. Fisher, Daniel J. Jacob, Q Wang, Roya Bahreini, C C. Carouge, M J. Cubison, Jack E. Dibb, Thomas Diehl, J L. Jimenez, E M. Leibensperger, Zifeng Lu, Marcel B.J Meinders, H. O T. Pye, Patricia K. Quinn, Sangeeta Sharma, David G. Streets, Aaron Van Donkelaar, R M. Yantosca
Sources, Distribution, And Acidity Of Sulfate-Ammonium Aerosol In The Arctic In Winter-Spring, Jenny A. Fisher, Daniel J. Jacob, Q Wang, Roya Bahreini, C C. Carouge, M J. Cubison, Jack E. Dibb, Thomas Diehl, J L. Jimenez, E M. Leibensperger, Zifeng Lu, Marcel B.J Meinders, H. O T. Pye, Patricia K. Quinn, Sangeeta Sharma, David G. Streets, Aaron Van Donkelaar, R M. Yantosca
Faculty of Science - Papers (Archive)
We use GEOS-Chem chemical transport model simulations of sulfate–ammonium aerosol data from the NASA ARCTAS and NOAA ARCPAC aircraft campaigns in the North American Arctic in April 2008, together with longer-term data from surface sites, to better understand aerosol sources in the Arctic in winter–spring and the implications for aerosol acidity. Arctic pollution is dominated by transport from mid-latitudes, and we test the relevant ammonia and sulfur dioxide emission inventories in the model by comparison with wet deposition flux data over the source continents. We find that a complicated mix of natural and anthropogenic sources with different vertical signatures is …
An Evaluation Of Environmental Factors Affecting Species Distributions, Michael B. Ashcroft, Kristine O. French, Laurie A. Chisholm
An Evaluation Of Environmental Factors Affecting Species Distributions, Michael B. Ashcroft, Kristine O. French, Laurie A. Chisholm
Faculty of Science - Papers (Archive)
Many different models can be built to explain the distributions of species. Often there is no single model that is clearly better than the alternatives, and this leads to uncertainty over which environmental factors are limiting species’ distributions. We investigated the support for different environmental factors by determining the drop in model performance when selected predictors were excluded from the model building process. We used a paired t-test over 37 plant species so that an environmental factor was only deemed significant if it consistently improved the results for multiple species. Geology and winter minimum temperatures were found to be the …
Incorporation Of Chlorinated Analogues Of Aliphatic Amino Acids During Cell-Free Protein Synthesis, Dannon J. Stigers, Zachary I. Watts, James E. Hennessy, Hye-Kyung Kim, Romeo Martini, Matthew C. Taylor, Kiyoshi Ozawa, Jeffrey W. Keillor, Nicholas E. Dixon, Christopher J. Easton
Incorporation Of Chlorinated Analogues Of Aliphatic Amino Acids During Cell-Free Protein Synthesis, Dannon J. Stigers, Zachary I. Watts, James E. Hennessy, Hye-Kyung Kim, Romeo Martini, Matthew C. Taylor, Kiyoshi Ozawa, Jeffrey W. Keillor, Nicholas E. Dixon, Christopher J. Easton
Faculty of Science - Papers (Archive)
3-Chloro-Abu and 4-chloro-Nva are biosynthetically incorporated into E. coli peptidyl-Pro cis-trans isomerase B, as substitutes for Val and Leu, respectively. The extent of incorporation is up to 90%, and substituted protein is catalytically active. By contrast, 4-chloro-Val is not an effective replacement for Ile.
Inexplicable Inefficiency Of Avian Molt? Insights From An Opportunistically Breeding Arid-Zone Species, Lichenostomus Penicillatus, Bethany J. Hoye, William A. Buttemer
Inexplicable Inefficiency Of Avian Molt? Insights From An Opportunistically Breeding Arid-Zone Species, Lichenostomus Penicillatus, Bethany J. Hoye, William A. Buttemer
Faculty of Science - Papers (Archive)
The majority of bird species studied to date have molt schedules that are not concurrent with other energy demanding life history stages, an outcome assumed to arise from energetic trade-offs. Empirical studies reveal that molt is one of the most energetically demanding and perplexingly inefficient growth processes measured. Furthermore, small birds, which have the highest mass-specific basal metabolic rates (BMRm), have the highest costs of molt per gram of feathers produced. However, many small passerines, including white-plumed honeyeaters (WPHE; Lichenostomus penicillatus), breed in response to resource availability at any time of year, and do so without interrupting their annual molt. …
Multiple Incursions And Putative Species Revealed Using A Mitochondrial And Nuclear Phylogenetic Approach To The Trogoderma Variabile (Coleoptera: Dermestidae) Trapping Program In Australia, M. A. Castalanelli, Katarina Maryann Mikac, A. M. Baker, K. Munyard, M. Grimm, D. M. Groth
Multiple Incursions And Putative Species Revealed Using A Mitochondrial And Nuclear Phylogenetic Approach To The Trogoderma Variabile (Coleoptera: Dermestidae) Trapping Program In Australia, M. A. Castalanelli, Katarina Maryann Mikac, A. M. Baker, K. Munyard, M. Grimm, D. M. Groth
Faculty of Science - Papers (Archive)
The Warehouse beetle, Trogoderma variabile (Coleoptera: Dermestidae), is an internationally significant invasive pest of packed goods and stored grain. When it was first documented in Australia at Griffith, New South Wales, in 1977, an eradication campaign was initiated. After several years and considerable effort, the eradication campaign was abandoned. To monitor the presence and spread of T. variabile, surveys were carried out by government agencies in 1992 and 2002. When survey data was compared, it was concluded that the distribution of morphologically identified T. variabile had doubled in most Australian states. Here, we used samples from the 2002 survey to …
Kinase Inhibitors From Marine Sponges, Danielle Skropeta, Natalie Pastro, Ana Zivanovic
Kinase Inhibitors From Marine Sponges, Danielle Skropeta, Natalie Pastro, Ana Zivanovic
Faculty of Science - Papers (Archive)
Protein kinases play a critical role in cell regulation and their deregulation is a contributing factor in an increasing list of diseases including cancer. Marine sponges have yielded over 70 novel compounds to date that exhibit significant inhibitory activity towards a range of protein kinases. These compounds, which belong to diverse structural classes, are reviewed herein, and ordered based upon the kinase that they inhibit. Relevant synthetic studies on the marine natural product kinase inhibitors have also been included.
Glutathione Transferases: A Structural Perspective, Aaron J. Oakley
Glutathione Transferases: A Structural Perspective, Aaron J. Oakley
Faculty of Science - Papers (Archive)
The glutathione transferases (GSTs) are one of the most important families of detoxifying enzymes in nature. The classic activity of the GSTs is conjugation of compounds with electrophilic centers to the tripeptide glutathione (GSH), but many other activities are now associated with GSTs, including steroid and leukotriene biosynthesis, peroxide degradation, double-bond cis-trans isomerization, dehydroascorbate reduction, Michael addition, and noncatalytic “ligandin” activity (ligand binding and transport). Since the first GST structure was determined in 1991, there has been an explosion in structural data across GSTs of all three families: the cytosolic GSTs, the mitochondrial GSTs, and the membrane-associated proteins in eicosanoid …
Calibration Of Tccon Column-Averaged Co2: The First Aircraft Campaign Over European Tccon Sites, Janina Messerschmidt, M. Geibel, T. Blumenstock, H. Chen, Nicholas Deutscher, A. Engel, D. Feist, C. Gerbig, M. Gisi, F. Hase, K. Katrynski, O. Kolle, J. Lavric, Justus Notholt, M. Palm, M. Ramonet, M. Rettinger, M. Schmidt, R. Sussmann, G. Toon, F. Truong, Thorsten Warneke, Paul Wennberg, Debra Wunch, I. Xueref-Remy
Calibration Of Tccon Column-Averaged Co2: The First Aircraft Campaign Over European Tccon Sites, Janina Messerschmidt, M. Geibel, T. Blumenstock, H. Chen, Nicholas Deutscher, A. Engel, D. Feist, C. Gerbig, M. Gisi, F. Hase, K. Katrynski, O. Kolle, J. Lavric, Justus Notholt, M. Palm, M. Ramonet, M. Rettinger, M. Schmidt, R. Sussmann, G. Toon, F. Truong, Thorsten Warneke, Paul Wennberg, Debra Wunch, I. Xueref-Remy
Faculty of Science - Papers (Archive)
The Total Carbon Column Observing Network (TCCON) is a ground-based network of Fourier Transform Spectrometer (FTS) sites around the globe, where the column abundances of CO2, CH4, N2O, CO and O2 are measured. CO2 is constrained with a precision better than 0.25% (1-σ). To achieve a similarly high accuracy, calibration to World Meteorological Organization (WMO) standards is required. This paper introduces the first aircraft calibration campaign of five European TCCON sites and a mobile FTS instrument. A series of WMO standards in-situ profiles were obtained over European TCCON sites via aircraft and …
Kinase Inhibitory, Haemolytic And Cytotoxic Activity Of Three Deep-Water Sponges From North Western Australia And Their Fatty Acid Composition, Ana Zivanovic, Natalie J. Pastro, Jane Fromont, Murray Thomson, Danielle Skropeta
Kinase Inhibitory, Haemolytic And Cytotoxic Activity Of Three Deep-Water Sponges From North Western Australia And Their Fatty Acid Composition, Ana Zivanovic, Natalie J. Pastro, Jane Fromont, Murray Thomson, Danielle Skropeta
Faculty of Science - Papers (Archive)
The c-AMP dependent protein kinase (PKA) inhibition, haemolytic activity, and cytoxicity of 21 extracts obtained from North Western Australian sponges collected from depths of 84-135 m were investigated. Hexane extracts from Ircinia/Sarcotragus sp. and Geodia sp. displayed PKA inhibitory activities of 100 and 97% respectively (at 100 μg/mL), while aq. methanol extracts from Haliclona sp. exhibited potent haemolytic activity (75%) and hexane extracts from Geodia sp. were highly toxic (88%) to the brine shrimp Artemia franciscana. As the non-polar extracts gave the greatest PKA inhibition, these were further analysed by GC-MS and 29 fatty acids were identified in the highest …
Identification And Characterization Of A Ross River Virus Variant That Grows Persistently In Macrophages, Shows Altered Disease Kinetics In A Mouse Model, And Exhibits Resistance To Type I Interferon, Brett A. Lidbury, Nestor Rulli, Cristina M. Musso, Susan B. Cossetto, Ali Zaid, Andreas Suhrbier, Harald S. Rothenfluh, Michael S. Rolph, Suresh Mahalingam
Identification And Characterization Of A Ross River Virus Variant That Grows Persistently In Macrophages, Shows Altered Disease Kinetics In A Mouse Model, And Exhibits Resistance To Type I Interferon, Brett A. Lidbury, Nestor Rulli, Cristina M. Musso, Susan B. Cossetto, Ali Zaid, Andreas Suhrbier, Harald S. Rothenfluh, Michael S. Rolph, Suresh Mahalingam
Faculty of Science - Papers (Archive)
Alphaviruses, such as chikungunya virus, o’nyong-nyong virus, and Ross River virus (RRV), cause outbreaks of human rheumatic disease worldwide. RRV is a positive-sense single-stranded RNA virus endemic to Australia and Papua New Guinea. In this study, we sought to establish an in vitro model of RRV evolution in response to cellular antiviral defense mechanisms. RRV was able to establish persistent infection in activated macrophages, and a small-plaque variant (RRVPERS) was isolated after several weeks of culture. Nucleotide sequence analysis of RRVPERS found several nucleotide differences in the nonstructural protein (nsP) region of the RRVPERS genome. A point mutation was also …
Emission Ratios Of The Tropospheric Ozone Precursors Nitrogen Dioxide And Formaldehyde From Australia's Black Saturday Fires, Emma Young, Clare Paton-Walsh
Emission Ratios Of The Tropospheric Ozone Precursors Nitrogen Dioxide And Formaldehyde 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 forest fires that burned across Victoria, Australia, during February and March of 2009. In this study we have used satellite data made publically available by NASA from the Ozone Monitoring Instrument (OMI) and the Atmospheric InfraRed Sounder (AIRS) to track the smoke plume from the Black Saturday firestorm and explore the chemical aging of the smoke plume in the first days after emission. We also determined emission ratios for formaldehyde and nitrogen dioxide within smoke from fires actively burning across Victoria between 7 and 17 February 2009. The mean emission ratios …
Determining An Optimal Model For Processing Lidar Data At The Plot Level: Results For A Pinus Radiata Plantation In New South Wales, Australia, Christine Stone, Trent D. Penman, Russell Turner
Determining An Optimal Model For Processing Lidar Data At The Plot Level: Results For A Pinus Radiata Plantation In New South Wales, Australia, Christine Stone, Trent D. Penman, Russell Turner
Faculty of Science - Papers (Archive)
Small-footprint, discrete return airborne laser scanning (ALS or lidar) data is increasingly being used by forest managers to assist forest inventories. In this study, airborne lidar and plot-based data were collected from a 5 000 ha study site within Green Hills State Forest, a Pinus radiata D.Don plantation in southern New South Wales, Australia. A series of area-based lidar metrics were extracted and modelled against four inventory attributes (mean tree height, stem density, basal area and stand volume) obtained from 63 ground plots. For all response variables, regression tree models had the best model fit compared to Random Forest and …
Validation Of The Atmospheric Chemistry Experiment By Noncoincident Mkiv Balloon Profiles, Voltaire A. Velazco, G. Toon, J.-F. Blavier, A. Kleinbohl, G. Manney, W. Daffer, P. Bernath, K. Walker, C. Boone
Validation Of The Atmospheric Chemistry Experiment By Noncoincident Mkiv Balloon Profiles, Voltaire A. Velazco, G. Toon, J.-F. Blavier, A. Kleinbohl, G. Manney, W. Daffer, P. Bernath, K. Walker, C. Boone
Faculty of Science - Papers (Archive)
We have compared volume mixing ratio profiles of atmospheric trace gases measured by the Atmospheric Chemistry Experiment (ACE) version 2.2 and the MkIV solar occultation Fourier transform infrared spectrometers. These gases are H2O, O3, N2O, CO, CH4, HNO3, HF, HCl, OCS, ClONO2, HCN, CH3Cl, CF4, CCl2F2, CCl3F, COF2, CHF2Cl, and SF6. Due to the complete lack of close spatiotemporal coincidences between the ACE occultations and the MkIV balloon flights, we used potential temperatures and equivalent latitudes from analyzed meteorological fields to find comparable ACE and MkIV profiles. The results show excellent agreement for CH4, N2O, and other long‐lived gases but …
The Geoheritage And Geomorphology Of The Sandstone Pagodas Of The North-Western Blue Mountains Region (Nsw), Haydn G. Washington, Robert A. Wray
The Geoheritage And Geomorphology Of The Sandstone Pagodas Of The North-Western Blue Mountains Region (Nsw), Haydn G. Washington, Robert A. Wray
Faculty of Science - Papers (Archive)
The towered `pagoda¿ rock formations of the north-western Blue Mountains, west of Sydney, have aheartland of about 600 km2, mostly at around 1000 metres altitude in Banks Wall and Burra Moko HeadSandstones. The pagodas are of two types: the `platy pagodas¿ are generally stepped-cones in shape, withsemi-regular ironstone bands, whereas the `smooth pagodas¿ display less ironstone bands and are similarto many slickrock slopes found elsewhere. The platy pagodas however are an uncommon and signifi cantgeomorphic landscape feature, and are distinguished by the extent and regularity of their ironstone banding.The formation of the ironstone banding has involved the movement of iron …
Is It Easy Being Green? On The Dilemmas Of Material Cultures Of Household Sustainability, Chris Gibson, Gordon R. Waitt, Lesley M. Head, Nicholas J. Gill
Is It Easy Being Green? On The Dilemmas Of Material Cultures Of Household Sustainability, Chris Gibson, Gordon R. Waitt, Lesley M. Head, Nicholas J. Gill
Faculty of Science - Papers (Archive)
In the 1970s ‘greens’ were normally thought of as radicals because of their uncompromising political views about sustainability, non-violence, social justice and grassroots democracy. Sometimes greens were marginalised as ‘tree-huggers’ because of their affinity with the non-human world. Today, in popular discourse, ‘green’ provides the centre of sustainability gravity (Barr 2003). Green has become a definitive reflection of what individuals are to become as both consumers and citizens. It is easy, it is said, to be green. This is evident from product branding to categories used in government survey results to describe the ‘most acceptable’ household practices. But as green …
Is It Easy Being Green? On The Dilemmas Of Material Cultures Of Household Sustainability, Chris Gibson, Gordon R. Waitt, Lesley M. Head, Nick Gill
Is It Easy Being Green? On The Dilemmas Of Material Cultures Of Household Sustainability, Chris Gibson, Gordon R. Waitt, Lesley M. Head, Nick Gill
Faculty of Science - Papers (Archive)
In the 1970s ‘greens’ were normally thought of as radicals because of their uncompromising political views about sustainability, non-violence, social justice and grassroots democracy. Sometimes greens were marginalised as ‘tree-huggers’ because of their affinity with the non-human world. Today, in popular discourse, ‘green’ provides the centre of sustainability gravity (Barr 2003). Green has become a definitive reflection of what individuals are to become as both consumers and citizens. It is easy, it is said, to be green. This is evident from product branding to categories used in government survey results to describe the ‘most acceptable’ household practices. But as green …
Lipid Pathway Alterations In Parkinson's Disease Primary Visual Cortex, Danni Cheng, Andrew M. Jenner, Guanghou Shui, Wei Fun Cheong, Todd W. Mitchell, Jessica Nealon, Woojin Scott Kim, H Mccann, Markus R. Wenk, Glenda Halliday, Brett Garner
Lipid Pathway Alterations In Parkinson's Disease Primary Visual Cortex, Danni Cheng, Andrew M. Jenner, Guanghou Shui, Wei Fun Cheong, Todd W. Mitchell, Jessica Nealon, Woojin Scott Kim, H Mccann, Markus R. Wenk, Glenda Halliday, Brett Garner
Faculty of Science - Papers (Archive)
Background: We present a lipidomics analysis of human Parkinson’s disease tissues. We have focused on the primary visual cortex, a region that is devoid of pathological changes and Lewy bodies; and two additional regions, the amygdala and anterior cingulate cortex which contain Lewy bodies at different disease stages but do not have as severe degeneration as the substantia nigra. Methodology/Principal Findings: Using liquid chromatography mass spectrometry lipidomics techniques for an initial screen of 200 lipid species, significant changes in 79 sphingolipid, glycerophospholipid and cholesterol species were detected in the visual cortex of Parkinson’s disease patients (n = 10) compared to …