David A. Roberts

ORCID: 0000-0003-0261-691X
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About
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Research Areas
  • Semiconductor materials and devices
  • Copper Interconnects and Reliability
  • Phosphorus and nutrient management
  • Metal and Thin Film Mechanics
  • Heavy metals in environment
  • Synthesis and Biological Evaluation
  • Marine Biology and Ecology Research
  • Aquatic Invertebrate Ecology and Behavior
  • Organometallic Complex Synthesis and Catalysis
  • Silicon Nanostructures and Photoluminescence
  • Asymmetric Hydrogenation and Catalysis
  • Catalytic Processes in Materials Science
  • Marine and coastal plant biology
  • Advancements in Semiconductor Devices and Circuit Design
  • Environmental Toxicology and Ecotoxicology
  • Synthesis and Reactivity of Heterocycles
  • Synthesis and Characterization of Heterocyclic Compounds
  • Plant Growth Enhancement Techniques
  • Chemical synthesis and alkaloids
  • Synthesis and Reactions of Organic Compounds
  • Inorganic and Organometallic Chemistry
  • Catalytic C–H Functionalization Methods
  • Phenothiazines and Benzothiazines Synthesis and Activities
  • Electronic and Structural Properties of Oxides
  • Algal biology and biofuel production

James Cook University
2012-2022

Ecologie & Evolution
1984-2013

Centre for Environment, Fisheries and Aquaculture Science
2012

UNSW Sydney
2005-2010

Environmental Earth Sciences
2005-2010

Louisiana State University
2010

Air Products (United States)
1988-2009

China University of Geosciences
2008

Bristol Robotics Laboratory
2005

Motorola (United States)
2004

It is well known that measurements performed on spatially separated entangled quantum systems can give rise to correlations are nonlocal, in the sense a Bell inequality violated. They cannot, however, be used for superluminal signaling. also it possible write down sets of ``superquantum'' more nonlocal than allowed by mechanics, yet still nonsignaling. Viewed as an information-theoretic resource, superquantum very powerful at reducing amount communication needed distributed computational...

10.1103/physreva.71.022101 article EN Physical Review A 2005-02-02

We analyze the structure of correlations among more than two quantum systems. introduce a classification based on concept nonseparability, which is different priori from entanglement. Generalizing result Svetlichny [Phys. Rev. D 35, 3066 (1987)] three-particle correlations, we find an inequality for n-particle that holds under most general separability condition and violated by some quantum-mechanical states.

10.1103/physrevlett.88.170405 article EN Physical Review Letters 2002-04-12

Abstract Seaweed cultivation is a high growth industry that primarily targeted at human food and hydrocolloid markets. However, seaweed biomass also offers feedstock for the production of nutrient-rich biochar soil amelioration. We provide first data yield characteristics from intensively cultivated seaweeds ( Saccharina , Undaria Sargassum – brown Gracilaria, Kappaphycus Eucheuma red seaweeds). While there some variability in properties as function origin seaweed, are several defining...

10.1038/srep09665 article EN cc-by Scientific Reports 2015-04-09

Ocean acidification (OA) may alter the behaviour of sediment-bound metals, modifying their bioavailability and thus toxicity. We provide first experimental test this hypothesis with amphipod Corophium volutator. Amphipods were exposed to two sediments, one relatively high metals concentrations (Σmetals 239 mg kg(-1) ) a reference sediment lower contamination 82 under conditions that mimic current projected OA (390-1140 μatm pCO2 ). Survival DNA damage was measured in amphipods, whereas flux...

10.1111/gcb.12048 article EN Global Change Biology 2012-10-09

The release of volatile inorganic elements during thermal conversion algal biomass may cause operational problems in industrial reactors such as fouling, deposition, corrosion, and bed agglomeration. Cl, S, P, K, Na the has been experimentally investigated this paper. A freshwater macroalga (Oedogonium sp.), a polyculture microalgae, marine microalga (Tetraselmis sp.) were used feedstocks to assess influence different species culturing environments on elements. Char ash samples prepared...

10.1021/acs.energyfuels.5b00279 article EN Energy & Fuels 2015-03-26

Abstract The optically pure steroid (+)‐ 15 has been synthesized from the easily accessible (+)‐carboxylic acid 11 by a sequence of 7 steps in 50% overall yield. key are regioselective deprotonation/alkylation 7+13 → 14 and thermal SO 2 ‐extrusion/cycloaddition (Scheme 3) . compound readily converted to naturally occurring (+)‐estradiol ( 17 ) 60%

10.1002/hlca.19800630638 article EN Helvetica Chimica Acta 1980-09-17

The energy, mining and mineral processing industries are point sources of metal-contaminated waste water carbon dioxide (CO2). Freshwater macroalgae from the genus Oedogonium can be grown in to generate biomass for bioenergy applications concomitantly bioremediate metals. However, interactions between CO2 addition algal growth, which affect bioremediation, remain untested. cultures Ash Dam Water (ADW) a coal-fired power station increased productivity sp. 6.8 g dry weight (DW) m-2 d-1 maximum...

10.1371/journal.pone.0081631 article EN cc-by PLoS ONE 2013-11-22

10.1016/j.jenvman.2015.07.002 article EN publisher-specific-oa Journal of Environmental Management 2015-07-13

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew nonpeptide angiotensin II receptor antagonists. 1. Synthesis, biological properties and structure-activity relationships of 2-alkylbenzimidazole derivativesAndrew P. Thomas, Christopher Allott, Keith H. Gibson, John S. Major, Brian B. Masek, Alec A. Oldham, Arnold Ratcliffe, David Roberts, Simon T. Russell, Douglas ThomasonCite this: J. Med. Chem. 1992, 35, 5, 877–885Publication Date (Print):March 1, 1992Publication History Published online1...

10.1021/jm00083a011 article EN Journal of Medicinal Chemistry 1992-03-01

Biosorption with macroalgae is a promising technology for the bioremediation of industrial effluents. However, vast majority research has been conducted on simple mock effluents little data available performance biosorbents in complex Here we evaluate efficacy dried biomass, biochar, and Fe-treated biomass biochar to remediate 21 elements from real-world effluent coal-fired power station. The were produced freshwater macroalga Oedogonium sp. (Chlorophyta) that native site which was sourced,...

10.1371/journal.pone.0094706 article EN cc-by PLoS ONE 2014-06-11

OVERVIEW:Organizations must be innovative all across the value chain, not just in R&D, order to succeed today's rapidly changing economic environment. Over past two years, an Industrial Research Institute subcommittee has worked develop a valid and reliable survey tool, using good psychometric (measurement theory) practices. This tool can used assess level of organization's Value Innovation potential, what we call IQ. Using this assessment produce useful information for managers who want...

10.1080/08956308.2005.11657303 article EN Research-Technology Management 2005-03-01
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