Physical Sciences and Mathematics Commons^™

Oxidation Dynamics Of Monosulfidic Toxic Sediment From A Eutrophic Estuary, Girish Choppala, Richard Bush, N Carroll, Leigh Sullivan, K Grice, S Appleyard, P Greenwood, S Wong, Nicholas Ward

Dr Girish Choppala

No abstract provided.

Investigations Into The Factors Affecting The Rates Of Recovery Of Acid Sulfate Soils In The Lower Lakes, Nicholas Ward, Richard Bush, Zhaohui Wang, Leigh Sullivan, Diane Fyfe, Girish Choppala, L Williams, N Toppler, Michelle Bush

Dr Girish Choppala

No abstract provided.

Assessing And Managing Sulfidic Dredge Spoil, Richard Bush, N Carroll, Leigh Sullivan, K Grice, S Appleyard, S Wong, N Ward, Peter Kraal, Girish Choppala

Dr Girish Choppala

No abstract provided.

The Influence Of Biochar And Black Carbon On Reduction And Bioavailability Of Chromate In Soils, Girish Choppala, Nanthi Bolan, M Megharaj, Z Chen, Ravi Naidu

Dr Girish Choppala

The widespread use of chromium (Cr) has a deleterious impact on the environment. A number of pathways, both biotic and abiotic in character, determine the fate and speciation of Cr in soils. Chromium exists in two predominant species in the environment: trivalent [(Cr(III)] and hexavalent [Cr(VI)]. Of these two forms, Cr(III) is nontoxic and is strongly bound to soil particles, whereas Cr(VI) is more toxic and soluble and readily leaches into groundwater. The toxicity of Cr(VI) can be mitigated by reducing it to Cr(III) species. The objective of this study was to examine the effect of organic carbon sources on …

Oxidation Dynamics Of Monosulfidic Toxic Sediment From A Eutrophic Estuary, Girish Choppala, Richard Bush, N Carroll, Leigh Sullivan, K Grice, S Appleyard, P Greenwood, S Wong, Nicholas Ward

Dr Nicholas J Ward

No abstract provided.

Assessing And Managing Sulfidic Dredge Spoil, Richard Bush, N Carroll, Leigh Sullivan, K Grice, S Appleyard, S Wong, N Ward, Peter Kraal, Girish Choppala

Dr Nicholas J Ward

No abstract provided.

Investigations Into The Factors Affecting The Rates Of Recovery Of Acid Sulfate Soils In The Lower Lakes, Nicholas Ward, Richard Bush, Zhaohui Wang, Leigh Sullivan, Diane Fyfe, Girish Choppala, L Williams, N Toppler, Michelle Bush

Dr Nicholas J Ward

No abstract provided.

Investigations Into The Factors Affecting The Rates Of Recovery Of Acid Sulfate Soils In The Lower Lakes, Nicholas Ward, Richard Bush, Zhaohui Wang, Leigh Sullivan, Diane Fyfe, Girish Choppala, L Williams, N Toppler, Michelle Bush

Dr Zhaohui Wang

No abstract provided.

A Geostatistical Model Based Approach To Evaluate Spatial Variability Of Arsenic In Soil And To Compare Arsenic Hyperaccumulation Efficiency Of Two Fern Species, Nabeel Niazi, Balwant Singh, T Bishop

Dr Nabeel Khan Niazi

No abstract provided.

Using Mid Infrared Spectroscopy And Partial-Least Squares Regression To Estimate Soil Arsenic Content At An Arsenic-Contaminated Site, Nabeel Niazi, Balwant Singh

Dr Nabeel Khan Niazi

No abstract provided.

A Comparative Study To Evaluate The Phytoremediation Potential Of Two Fern Species For The Remediation Of An Arsenic Contaminated Site Under Field Conditions, Nabeel Niazi, Balwant Singh, Lukas Van Zwieten, Anthony Kachenko

Dr Nabeel Khan Niazi

No abstract provided.

Remediation Of Arsenic-Contaminated Water Using Orange Peel As A Biosorbent, M Abid, Nabeel Niazi, I Bibi, A Farooqi, M Shahid, G Murtaza, M Shakoor, F Ali

Dr Nabeel Khan Niazi

No abstract provided.

A Long Term Study To Evaluate The Phytoremediation Potential Of Pteris Vittata L. And Pityrogramma Calomelanos Var. Austroamericana, Nabeel Niazi, Balwant Singh, Lukas Van Zwieten, Anthony Kachenko

Dr Nabeel Khan Niazi

No abstract provided.

Phytoavailability Of Potassium To Zea Mays L. Grown In Agricultural Soils With Contrasting Textures And Mineralogy, M Faheem, I Bibi, Nabeel Niazi, G Murtaza, U Riaz

Dr Nabeel Khan Niazi

No abstract provided.

Effect Of Phosphate On The Phytoextraction Of Arsenic From Arsenic-Contaminated Soils Using Brassica Juncea L. And Brassica Napus L., A Fatima, Nabeel Niazi, I Bibi, T Aziz, G Murtaza, M Shakoor

Dr Nabeel Khan Niazi

No abstract provided.

Establishment And Optimization Of Callus-To-Plant Regeneration System Using Mature And Immature Embryos Of Maize (Zea Mays), F Ali, M Ahson, N Saeed, M Ahmed, Q Ali, N Kanwal, M Tehseen, U Ijaz, I Bibi, Nabeel Niazi

Dr Nabeel Khan Niazi

Two experiments were conducted to develop an efficient maize regeneration system using mature and immature embryos of four maize elite lines (Agaiti-85, Golden, Soneri and Sultan). The comparative studies revealed that all maize lines were responsive to callus and plant regeneration from mature and immature embryos. The culture medium Chu's N6 was used in both experiments. Immature embryos efficiently produced callus and regenerated plants therefore, when cultured on medium supplemented with 2,4-D, kinetin, 6-BAP and IBA at concentrations of 2 mL L^-1, 0.2, 0.2 and 0.3 g L^-1, respectively. However, callus-to-plant regeneration system for mature embryos …

Comparative Study For The Arsenic Hyperaccumulation By Ferns: A Model-Based Geostatistical Approach, Nabeel Niazi, T Bishop, Balwant Singh

Dr Nabeel Khan Niazi

No abstract provided.

Arsenic Hyperaccumulation By Ferns: A Field Study In Northern Nsw, Nabeel Niazi, Balwant Singh, Lukas Van Zwieten, Anthony Kachenko

Dr Nabeel Khan Niazi

No abstract provided.

Evaluating The Effect Of Ph On Potassium (K) Release Rate From Mica Mineral Weathering In Alkaline Solutions At 25°C, U Riaz, I Bibi, G Murtaza, Nabeel Niazi, R Sarfraz, M Faheem

Dr Nabeel Khan Niazi

No abstract provided.

Bioavailability Of Arsenic To Zea Mays L. Grown In Contaminated Soils With Contrasting Textures: Effect Of Compost Application, T Mehmood, Nabeel Niazi, I Bibi, M Nawaz, G Murtaza, H Asghar

Dr Nabeel Khan Niazi

No abstract provided.

Speciation And Bioavailability Of Arsenic In Contaminated Soils Using X-Ray Absorption Near Edge Structure Spectroscopy And A Sequential Extraction Procedure, Nabeel Niazi, Balwant Singh, Pushan Shah

Dr Nabeel Khan Niazi

No abstract provided.

Heavy Metal Uptake Behavior Of River Red Gum (Eucalyptus Camaldulensis) For Lead (Pb) Is Modified Under Saline Conditions, M Nawaz, S Chaudary, M Tanvir, S Gul, Nabeel Niazi

Dr Nabeel Khan Niazi

No abstract provided.

Using Model-Based Geostatistics To Develop Design-Based Sampling Guidelines For Estimating Arsenic Contamination Around Cattle-Dip Sites, Nabeel Niazi, T Bishop, Balwant Singh

Dr Nabeel Khan Niazi

In the past Arsenical pesticides were used across New South Wales, Australia to control ticks in livestock at now disused cattle dip sites which resulted in the contamination of surrounding soils with elevated and extremely variable As concentrations. Estimating the spatial distribution of As in soil is imperative to delineate its level and spread of contamination. Therefore, the aims of this study were to (1) quantify spatial-variation in soil As content around a cattle dip site and map this using linear mixed models, and (2) use the information on the spatial variability pattern to give guidelines on the sample size …

Solutions To A Partial Integro-Differential Parabolic System Arising In The Pricing Of Financial Options In Regime- Switching Jump Diffusion Models, Ionut Florescu, Ruihua Liu, Maria Mariani

Ruihua Liu

No abstract provided.

Measuring Good Architecture: Long Life, Loose Fit, Low Energy, Craig Langston

Craig Langston

Good architecture is something that we all seek, but which is difficult to define. Sir Alexander John Gordon, in his role as President of the Royal Institute of British Architects, defined ‘good architecture’ in 1972 as buildings that exhibit ‘long life, loose fit and low energy’. These characteristics, nicknamed by Gordon as the 3L Principle, are measurable. Furthermore, life cycle cost (LCC) provides a method for accessing the economic contribution or burden created by buildings to the society they aim to serve. Yet there is no research available to investigate the connection, if any, between 3L and LCC. It might …

Designing For Better Building Adaptability: A Comparison Of Adaptstar And Arp Models, Sheila Conejos, Craig Langston, Jim Smith

Craig Langston

Can sustainability and adaptability be integrated in a single decision tool for designing future buildings? Indeed, it is not possible to know what lies ahead for future buildings but, using current research on sustainability and the impact on natural resources and climate, it is possible to forecast the connection between built environment activity and sustainability. This paper demonstrates that the assessment of future adaptation in newly designed building is achievable by using the adaptSTAR model. This new design-rating tool, based on detailed analysis of 12 award-winning adaptive reuse projects in Australia, will assist designers in making decisions to achieve optimum …

Sustainable Campus: Engaging The Community In Sustainability, Linda Too, Bhishna Bajracharya

Bhishna Bajracharya

Purpose – The purpose of this paper is to identify the major factors necessary for engaging university campus community in sustainability. While general awareness in sustainability issues has improved in recent years through mass media coverage, this knowledge is not always translated into actual sustainable practice. Studies have indicated that there are many factors for engaging the community in sustainability.

Design/methodology/approach – A multi-disciplinary literature review is first undertaken to distil the drivers that enhance participation in sustainability programmes by the university community. Next, to illustrate the applicability of the factors identified in the community engagement framework, two case studies …

Feral Deer In The Suburbs: An Emerging Issue For Australia?, Shelley Burgin, Mariama Mattila, Daryl Mcphee, Tor Hundloe

Tor Hundloe

Deer are not endemic to Australia, but were introduced for game and aesthetics between the early 18th and 20th centuries. Until recent decades, most deer descended from these introductions. Before the 1970s when deer numbers and distribution expanded dramatically, farming was a modest enterprise. With the collapse of farming in the 1990s, large numbers of deer were deliberately released and translocated. Feral numbers and herds have subsequently expanded, and are increasingly encroaching on urban areas. As a new issue in Australia, views toward feral deer are polarized and span “welcome guest” to “major pest.” The emerging urban deer issues need …

Economics Of The Queensland Mud Crab Fishery, Tor Hundloe

Tor Hundloe

A series of analyses of catch-effort data from compulsory commercial logbooks and from the Department’s Long-Term Monitoring Programme (LTMP) were conducted after the Workshop. Although not part of the Project plan, these were initiated as a result of questions arising from the Workshop participants about the reliability of the data used in the simulation modelling. Exploration of the logbook data and results of the analyses suggest that biases in the data (from a variety of sources, but principally the widespread use of more than the permitted number of pots) may be giving an over-optimistic view of the status of the …

Feral Deer In The Suburbs: An Emerging Issue For Australia?, Shelley Burgin, Mariama Mattila, Daryl Mcphee, Tor Hundloe

Daryl McPhee

Deer are not endemic to Australia, but were introduced for game and aesthetics between the early 18th and 20th centuries. Until recent decades, most deer descended from these introductions. Before the 1970s when deer numbers and distribution expanded dramatically, farming was a modest enterprise. With the collapse of farming in the 1990s, large numbers of deer were deliberately released and translocated. Feral numbers and herds have subsequently expanded, and are increasingly encroaching on urban areas. As a new issue in Australia, views toward feral deer are polarized and span “welcome guest” to “major pest.” The emerging urban deer issues need …