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Full-Text Articles in Physical Sciences and Mathematics
Satellite Evidence For A Large Source Of Formic Acid From Boreal And Tropical Forests, T Stavrakou, J F. Muller, J Peeters, A Razavi, L Clarisse, C Clerbaux, P Coheur, D Hurtmans, M De Maziere, C Vigouroux, Nicholas Deutscher, David Griffith, Nicholas Jones, Clare Paton-Walsh
Satellite Evidence For A Large Source Of Formic Acid From Boreal And Tropical Forests, T Stavrakou, J F. Muller, J Peeters, A Razavi, L Clarisse, C Clerbaux, P Coheur, D Hurtmans, M De Maziere, C Vigouroux, Nicholas Deutscher, David Griffith, Nicholas Jones, Clare Paton-Walsh
Faculty of Science - Papers (Archive)
Formic acid contributes significantly to acid rain in remote environments1, 2. Direct sources of formic acid include human activities, biomass burning and plant leaves. Aside from these direct sources, sunlight-induced oxidation of non-methane hydrocarbons (largely of biogenic origin) is probably the largest source3, 4. However, model simulations substantially underpredict atmospheric formic acid levels5, 6, 7, indicating that not all sources have been included in the models. Here, we use satellite measurements of formic acid concentrations to constrain model simulations of the global formic acid budget. According to our simulations, 100–120 Tg of formic acid is produced annually, which is two …
The Social And Behavioral Implications Of Location-Based Services, Katina Michael, M.G. Michael
The Social And Behavioral Implications Of Location-Based Services, Katina Michael, M.G. Michael
Associate Professor Katina Michael
The social and behavioral implications of location-based services (LBS) are only now beginning to come to light in advanced markets where the services have been adopted by just a little over half the market (Microsoft 2011). Depending on one’s definition of what constitutes location-based services, statistics on the level of adoption differ considerably. While it is helpful to provide as broad a list of applications as possible in what constitutes LBS (e.g. everything from in-vehicle navigation systems to downloading a map using a computer), it can also cloud the real picture forming behind this emerging technology. Emerging not in the …
Negotiating Change: Working With Children And Their Employers To Transform Child Domestic Work In Iringa, Tanzania, Natascha Klocker
Negotiating Change: Working With Children And Their Employers To Transform Child Domestic Work In Iringa, Tanzania, Natascha Klocker
Faculty of Science - Papers (Archive)
This paper documents the practical and action-oriented findings of an investigation into child domestic work undertaken in Iringa, Tanzania from 2005 to 2007. It provides an overview of the experiences of both child domestic workers and their employers, before discussing their suggestions for how child domestic working arrangements may be improved. The latter sections of the paper relate the attempts to regulate child domestic work that emerged from such dialogue. In providing detailed information on that process, the paper is positioned within the field of action research and resists the boundary frequently applied between academia and activism. It also moves …
Synthesis And Structural Characterization Of 1-[2-(5-Nitro-1h-Indol-2-Yl)Phenyl]Methylpyridinium Chloride, John B. Bremner, Siritron Samosorn, Brian W. Skelton, Allan White
Synthesis And Structural Characterization Of 1-[2-(5-Nitro-1h-Indol-2-Yl)Phenyl]Methylpyridinium Chloride, John B. Bremner, Siritron Samosorn, Brian W. Skelton, Allan White
Faculty of Science - Papers (Archive)
In the course of studies on hybrid antibacterials incorporating 2-aryl-5-nitro-1Hindolemoieties as potential bacterial NorA efflux pump inhibitors, the compound 1-[2-(5-nitro-1H-indol-2-yl)phenyl]methylpyridinium chloride (2) was synthesized and structurallycharacterized. This pyridinium chloride salt crystallized in the monoclinic space groupP21/c with the following unit cell dimensions: a 10.274(3) A, b 13.101(4) A, c 13.439(4)A, B 107.702(7)deg, V 1723.2(9) A3, Z (f.u.) = 4; R1 = 0.048, and wR2 = 0.13. Of interest inthe single crystal X-ray structure is the (intramolecular) disposition of the pyridinium planeover the indole heterocyclic residue [interplanar dihedral angle 17.91(4)deg].
Toward Accurate Co2 And Ch4 Observations From Gosat, A Butz, S Guerlet, O Hasekamp, D Schepers, A Galli, Ilse Aben, C Frankenberg, J-M Hartmann, H Tran, A Kuze, Gretchen Keppel-Aleks, G C. Toon, Debra Wunch, P Wennberg, Nicholas M. Deutscher, David W. Griffith, Ronald Macatangay, Janina Messerschmidt, Justus Notholt, Thorsten Warneke
Toward Accurate Co2 And Ch4 Observations From Gosat, A Butz, S Guerlet, O Hasekamp, D Schepers, A Galli, Ilse Aben, C Frankenberg, J-M Hartmann, H Tran, A Kuze, Gretchen Keppel-Aleks, G C. Toon, Debra Wunch, P Wennberg, Nicholas M. Deutscher, David W. Griffith, Ronald Macatangay, Janina Messerschmidt, Justus Notholt, Thorsten Warneke
Faculty of Science - Papers (Archive)
The column-average dry air mole fractions of atmospheric carbon dioxide and methane (XCO2 and XCH4) are inferred from observations of backscattered sunlight conducted by the Greenhouse gases Observing SATellite (GOSAT). Comparing the first year of GOSAT retrievals over land with colocated ground-based observations of the Total Carbon Column Observing Network (TCCON), we find an average difference (bias) of-0.05% and-0.30% for XCO2 and XCH4 with a station-to-station variability (standard deviation of the bias) of 0.37% and 0.26% among the 6 considered TCCON sites. The root-mean square deviation of the bias-corrected satellite retrievals from colocated TCCON observations amounts to 2.8 ppm for …
The Long Life Of Birds: The Rat-Pigeon Comparison Revisited, William A. Buttemer, Anthony J. Hulbert, M K. Montgomery
The Long Life Of Birds: The Rat-Pigeon Comparison Revisited, William A. Buttemer, Anthony J. Hulbert, M K. Montgomery
Faculty of Science - Papers (Archive)
The most studied comparison of aging and maximum lifespan potential (MLSP) among endotherms involves the 7-fold longevity difference between rats (MLSP 5y) and pigeons (MLSP 35y). A widely accepted theory explaining MLSP differences between species is the oxidative stress theory, which purports that reactive oxygen species (ROS) produced during mitochondrial respiration damage bio-molecules and eventually lead to the breakdown of regulatory systems and consequent death. Previous rat-pigeon studies compared only aspects of the oxidative stress theory and most concluded that the lower mitochondrial superoxide production of pigeons compared to rats was responsible for their much greater longevity. This conclusion is …
Methane Observations From The Greenhouse Gases Observing Satellite: Comparison To Ground-Based Tccon Data And Model Calculations, Robert Parker, Hartmut Boesch, Austin Cogan, Annemarie Fraser, Liang Feng, Paul Palmer, Janina Messerschmidt, Nicholas M. Deutscher, David W. Griffith, Justus Notholt, Paul O. Wennberg, Debra Wunch
Methane Observations From The Greenhouse Gases Observing Satellite: Comparison To Ground-Based Tccon Data And Model Calculations, Robert Parker, Hartmut Boesch, Austin Cogan, Annemarie Fraser, Liang Feng, Paul Palmer, Janina Messerschmidt, Nicholas M. Deutscher, David W. Griffith, Justus Notholt, Paul O. Wennberg, Debra Wunch
Faculty of Science - Papers (Archive)
We report new short-wave infrared (SWIR) column retrievals of atmospheric methane (X CH4) from the Japanese Greenhouse Gases Observing SATellite (GOSAT) and compare observed spatial and temporal variations with correlative ground-based measurements from the Total Carbon Column Observing Network (TCCON) and with the global 3-D GEOS-Chem chemistry transport model. GOSAT X CH4 retrievals are compared with daily TCCON observations at six sites between April 2009 and July 2010 (Bialystok, Park Falls, Lamont, Orleans, Darwin and Wollongong). GOSAT reproduces the site-dependent seasonal cycles as observed by TCCON with correlations typically between 0.5 and 0.7 with an estimated single-sounding precision between 0.4-0.8%. …
A Novel Bath Lily-Like Graphene Sheet-Wrapped Nano-Si Composite As A High Performance Anode Material For Li-Ion Batteries, Jun Chen, Jun Yang, Zi-Feng Ma, Pengfei Gao, Yu-Shi He, Xiao Zhen Liao, Xiaowei Yang
A Novel Bath Lily-Like Graphene Sheet-Wrapped Nano-Si Composite As A High Performance Anode Material For Li-Ion Batteries, Jun Chen, Jun Yang, Zi-Feng Ma, Pengfei Gao, Yu-Shi He, Xiao Zhen Liao, Xiaowei Yang
Faculty of Science - Papers (Archive)
"A novel bath lily-like graphene sheet-wrapped nano-Si composite synthesized via a simple spray drying process exhibits a high reversible capacity of 1525 mAh g(-1) and superior cycling stability, which could be attributed to a synergistic effect between highly conductive graphene sheets and active nanoparticles in the open nano/micro-structure."
Clusterin Facilitates In Vivo Clearance Of Extracellular Misfolded Proteins, Amy R. Wyatt, Justin J. Yerbury, Paula Berghofer, I Greguric, Andrew Katsifis, Christopher Dobson, Mark R. Wilson
Clusterin Facilitates In Vivo Clearance Of Extracellular Misfolded Proteins, Amy R. Wyatt, Justin J. Yerbury, Paula Berghofer, I Greguric, Andrew Katsifis, Christopher Dobson, Mark R. Wilson
Faculty of Science - Papers (Archive)
The extracellular deposition of misfolded proteins is a characteristic of many debilitating age-related disorders. However, little is known about the specific mechanisms that act to suppress this process in vivo. Clusterin (CLU) is an extracellular chaperone that forms stable and soluble complexes with misfolded client proteins. Here we explore the fate of complexes formed between CLU and misfolded proteins both in vitro and in a living organism. We show that proteins injected into rats are cleared more rapidly from circulation when complexed with CLU as a result of their more efficient localisation to the liver and that this clearance …
Recruitment Limitation Of Native Species In Invaded Coastal Dune Communities, Kristine O. French, Natalie A. Sullivan, Tanya J. Mason
Recruitment Limitation Of Native Species In Invaded Coastal Dune Communities, Kristine O. French, Natalie A. Sullivan, Tanya J. Mason
Faculty of Science - Papers (Archive)
"Recruitment limitation may limit the ability of sites to regenerate after disturbances such as weed invasion and weed management. We investigated seed bank constraints and dispersal limitation in coastal dune communities on the east coast of Australia. The ability of sites to regenerate naturally following weed removal was assessed in coastal dune communities invaded by the invasive alien, bitou bush (Chrysanthemoides monilifera subsp. rotundata). To investigate recruitment limitation, seed banks and vegetation of invaded, native, intensively managed (selective application of herbicide and some re-vegetation) and extensively managed (large-scale, non-selective herbicide application) sites were compared. We investigated the dispersal mechanisms of …
Antimalarial, Anticancer, Antimicrobial Activities And Chemical Constituents Of Essential Oil From The Aerial Parts Of Cyperus Kyllingia Endl, Stephen G. Pyne, Boonsom Liawruangrath, Saisunee Liawruangrath, M Garson, S Khamsan, A Teerawutkulrag
Antimalarial, Anticancer, Antimicrobial Activities And Chemical Constituents Of Essential Oil From The Aerial Parts Of Cyperus Kyllingia Endl, Stephen G. Pyne, Boonsom Liawruangrath, Saisunee Liawruangrath, M Garson, S Khamsan, A Teerawutkulrag
Faculty of Science - Papers (Archive)
The chemical constituents of the essential oil from Cyperus kyllingia Endl. were analyzed by a GC, GC-MS. Twenty-three compounds were identified, accounting for 93.75% of the total oil that consisted mainly of oxygenated sesquiterpenes (53.52%), particularly sesquiterpene hydrocarbons (38.97%), and carboxylic acid (1.26%). The most representative compounds were -cadinol (19.32%), caryophyllene oxide (12.17%), -muurolol (11.58%), -humulene (9.85%), and -atlantone (6.07%). The oil showed significant activities against Plasmodium falcipalum (K1, multi drug resistant strain) and NCI-H187 (Small Cell Lung Cancer) with the IC50 values of 7.52 and 7.72 g/mL, respectively. The oil exhibited highly active against Staphylococcus aureus ATCC25923 and moderately …
Remote Real-Time Monitoring Of Subsurface Landfill Gas Migration, Cormac Fay, Aiden R. Doherty, Stephen T. Beirne, F Collins, C Foley, John Healy, Breda M. Kiernan, Hyowon Lee, Damien Maher, D Orpen, Thomas Phelan, Zhengwei Qiu, Kirk Zhang, Cathal Gurrin, Brian Corcoran, Noel E. O'Connor, A F Smeaton, D Diamond
Remote Real-Time Monitoring Of Subsurface Landfill Gas Migration, Cormac Fay, Aiden R. Doherty, Stephen T. Beirne, F Collins, C Foley, John Healy, Breda M. Kiernan, Hyowon Lee, Damien Maher, D Orpen, Thomas Phelan, Zhengwei Qiu, Kirk Zhang, Cathal Gurrin, Brian Corcoran, Noel E. O'Connor, A F Smeaton, D Diamond
Faculty of Science - Papers (Archive)
The cost of monitoring greenhouse gas emissions from landfill sites is of major concern for regulatory authorities. The current monitoring procedure is recognised as labour intensive, requiring agency inspectors to physically travel to perimeter borehole wells in rough terrain and manually measure gas concentration levels with expensive hand-held instrumentation. In this article we present a cost-effective and efficient system for remotely monitoring landfill subsurface migration of methane and carbon dioxide concentration levels. Based purely on an autonomous sensing architecture, the proposed sensing platform was capable of performing complex analytical measurements in situ and successfully communicating the data remotely to a …
Transport Of Nox Emissions From Sugarcane Fertilisation Into The Great Barrier Reef Lagoon, Clare Paton-Walsh, Stephen R. Wilson, Travis A. Naylor, David W. T Griffith, O Tom Denmead
Transport Of Nox Emissions From Sugarcane Fertilisation Into The Great Barrier Reef Lagoon, Clare Paton-Walsh, Stephen R. Wilson, Travis A. Naylor, David W. T Griffith, O Tom Denmead
Faculty of Science - Papers (Archive)
The Great Barrier Reef World Heritage Area contains highly sensitive ecosystems that are threatened by the effects of anthropogenic activity including eutrophication. The nearby sugarcane plantations of tropical north Queensland are fertilised annually and there has been ongoing concern about the magnitude of the loss of applied nitrogen to the environment. Previous studies have considered the potential of rainwater run-off to deposit reactive nitrogen species into rivers and ultimately into the Great Barrier Reef Lagoon, but have neglected the possibility of transport via the atmosphere. This paper reports the results of a modelling study commissioned by Australia’s National Heritage Trust …
Synthesis And Preliminary Evaluation Of Amiloride Analogs As Inhibitors Of The Urokinase-Type Plasminogen Activator (Upa), Hayden Matthews, Marie Ranson, Joel Tyndall, Michael J. Kelso
Synthesis And Preliminary Evaluation Of Amiloride Analogs As Inhibitors Of The Urokinase-Type Plasminogen Activator (Upa), Hayden Matthews, Marie Ranson, Joel Tyndall, Michael J. Kelso
Faculty of Science - Papers (Archive)
A known side-activity of the oral potassium-sparing diuretic drug amiloride is inhibition of the enzyme urokinase-type plasminogen activator (uPA, Ki = 7 mu M), a promising anticancer target. Several studies have demonstrated significant antitumor/metastasis properties for amiloride in animal cancer models and it would appear that these arise, at least in part, through inhibition of uPA. Selective optimization of amiloride’s structure for more potent inhibition of uPA and loss of diuretic effects would thus appear as an attractive strategy towards novel anticancer agents. The following report is a preliminary structure-activity exploration of amiloride analogs as inhibitors of uPA. A …
The Potential Demise Of A Population Of Adders (Vipera Berus) In Smygehuk, Sweden, Thomas Madsen, Beata Ujvari
The Potential Demise Of A Population Of Adders (Vipera Berus) In Smygehuk, Sweden, Thomas Madsen, Beata Ujvari
Faculty of Science - Papers (Archive)
In 1999 and 2004, we published reports on how the introduction of 20 males into a severely inbred and isolated population of Adders (Vipera berus) halted its decline towards extinction. The introduction significantly enhanced the population's genetic variability, which resulted in a dramatic increase in offspring viability and a rapid increase in numbers. Unfortunately, recently a new and unprecedented development is threatening the population's future survival. In 2004 permission was granted by the Swedish Nature Conservation Agency of the County Administrative Board to build a house and an adjacent 1 m tall brick wall, right across the habitat occupied by …
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 …
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.
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 …
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. …
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. …
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 …
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 …
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 …
Indigenous -Government Co-Management Of Protected Areas: Booderee National Park And The National Framework In Australia, David Farrier, Michael Adams
Indigenous -Government Co-Management Of Protected Areas: Booderee National Park And The National Framework In Australia, David Farrier, Michael Adams
Faculty of Science - Papers (Archive)
This case study first describes and assesses co-management governance arrangements for Booderee National Park on the south-east coast of Australia. It then goes on to set this examination in the broader context of a range of other types of protected area co-management governance arrangements in the country. Co-management of Booderee National Park raises and reflects issues from the ongoing development of co-managed protected areas in Australia. The co-management arrangements for Booderee exempt Aboriginal management and use from a range of regulatory provisions, but this is not considered to pose any threats to the successful maintenance of biodiversity. The arrangements also …
Greening Rural Festivals: Ecology, Sustainability And Human-Nature Relations, Christopher R. Gibson, C Wong
Greening Rural Festivals: Ecology, Sustainability And Human-Nature Relations, Christopher R. Gibson, C Wong
Faculty of Science - Papers (Archive)
No abstract provided.