ORCID Profile
0000-0003-2624-2561
Current Organisation
University of Queensland
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In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Materials Engineering | Nanomaterials | Composite and Hybrid Materials | Wood Fibre Processing | Functional Materials | Polymers and Plastics | Crop and Pasture Biomass and Bioproducts
Basic Iron and Steel Products | Expanding Knowledge in Engineering | Inorganic Industrial Chemicals | Reconstituted Timber Products (e.g. Chipboard, Particleboard) | Environmentally Sustainable Manufacturing not elsewhere classified |
Publisher: American Chemical Society (ACS)
Date: 06-12-2016
DOI: 10.1021/ACS.LANGMUIR.6B03467
Abstract: Adhesive interactions between nanofibers strongly influence the mechanical behavior of soft materials composed of fibrous networks. We use atomic force microscopy in lateral force mode to drag a cantilever tip through fibrous networks, and use the measured lateral force response to determine the adhesive forces between fibers of the order of 100 nm diameter. The peaks in lateral force curves are directly related to the detachment energy between two fibers the data is analyzed using the Jarzynski equality to yield the average adhesion energy of the weakest links. The method is successfully used to measure adhesion forces arising from van der Waals interactions between electrospun polymer fibers in networks of varying density. This approach overcomes the need to isolate and handle in idual fibers, and can be readily employed in the design and evaluation of advanced materials and biomaterials which, through inspiration from nature, are increasingly incorporating nanofibers. The data obtained with this technique may also be of critical importance in the development of network models capable of predicting the mechanics of fibrous materials.
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3TA03215A
Abstract: Nanosheet-like sorghum biomass obtained by mild alkaline treatment and high-energy ball milling is heteroatom-doped with N and S during pyrolysis. The resulting N, S co-doped carbon shows a significantly improved K-ion storage as an anode material in potassium ion batteries.
Publisher: Informa UK Limited
Date: 03-2008
DOI: 10.1080/13548500701426737
Abstract: This research examines (a) the interrelationships between body mass index (BMI), the direct measures of the Theory of Planned Behaviour (TPB) and physical activity intention and (b) the potential mediation effects of the direct measures of the TPB in the relationship between BMI and physical activity intention in a s le of Australian adults. A total s le of 1,062 respondents participated in a computer-assisted telephone-interview (CATI) survey comprised of a standardised introduction questions regarding TPB and physical activity and standard demographic questions. BMI for each participant was calculated from self-reported height and weight. Separate regression analyses were performed to examine the mediating effects of each of the direct measures of the TPB on the predictive relationship between the BMI and physical activity intention, as proposed by Baron and Kenny (Journal of Personality and Social Psychology, 51(6), 1173 - 1182, 1986). Findings indicated that the direct measure of attitude and perceived behavioural control mediated the relationship between BMI and physical activity intention. However, the direct measure of subjective norm failed to act as a mediating mechanism. To date there has been no research that has examined the mechanism by which body mass may affect physical activity behaviour. Given the current focus for health promotion specialists on promoting physical activity as a strategy for reducing overweight and obesity, a theoretical understanding of weight-related barriers to physical activity may aid in the development of future interventions and community physical activity programs, particularly those targeting overweight and obese populations.
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3GC02995F
Publisher: Springer Science and Business Media LLC
Date: 03-05-2013
Publisher: Elsevier BV
Date: 08-2007
DOI: 10.1111/J.1753-6405.2007.00082.X
Abstract: To describe public opinion relating to the fluoridation of drinking water in a s le of the Queensland population. Data were collected by means of a computer-assisted telephone interview survey from a s le of the Queensland population. Descriptive statistics and logistical regression were used to examine associations between variables. Seventy per cent of the total s le supported water fluoridation of their local supply. More than 71% of the total s le agreed that water fluoridation was safe. People living in areas of higher socio-economic/relative socio-economic advantage were more likely to support the addition of fluoride to local drinking water and agree that it was safe. Opinions about fluoridation varied by respondent age and gender. General support was found in this s le of the Queensland population for fluoridation of drinking water. In Queensland, fluoridation of the water supply is now a political decision. Information about public opinion on fluoridation may assist decision makers in the final determination.
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3PY00043E
Abstract: Controlled grafting of polymers through Surface-Initiated Atom Transfer Radical Polymerization (SI-ATRP) from cellulose nanocrystals (CNC) without losing its morphology and structural properties.
Publisher: Elsevier BV
Date: 06-2023
Publisher: Elsevier BV
Date: 09-2021
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA02936H
Abstract: The production of high aspect ratio cellulose nanofibres without resorting to very harsh mechanical and/or chemical processing steps remains a challenge that hinders progress in the fast-moving nanocellulose field.
Publisher: Springer Science and Business Media LLC
Date: 09-2010
Publisher: The Chemical Society of Japan
Date: 15-04-2023
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7NR02632C
Abstract: Remnant lignin and hemicellulose in the cellulose nanofibre (CNF) and a deep-eutectic-solvent pretreatment on CNF can enhace the tensile strength and toughness or natural rubber nanocomposites.
Publisher: Wiley
Date: 16-03-2009
DOI: 10.1002/APP.29808
Publisher: Pleiades Publishing Ltd
Date: 04-2010
Publisher: Elsevier BV
Date: 04-2021
Publisher: Informa UK Limited
Date: 2007
Publisher: Elsevier BV
Date: 09-2020
Publisher: MDPI AG
Date: 22-11-2022
Abstract: Nanocomposite hydrogels are highly porous colloidal structures with a high adsorption capacity, making them promising materials for wastewater treatment. In particular, magnetic nanoparticle (MNP) incorporated hydrogels are an excellent adsorbent for aquatic pollutants. An added advantage is that, with the application of an external magnetic field, magnetic hydrogels can be collected back from the wastewater system. However, magnetic hydrogels are quite brittle and structurally unstable under compact conditions such as in fixed-bed adsorption columns. To address this issue, this study demonstrates a unique hydrogel composite bead structure, providing a good adsorption capacity and superior compressive stress tolerance due to the presence of hollow cores within the beads. The gel beads contain alginate polymer as the matrix and MNP-decorated cellulose nanofibres (CNF) as the reinforcing agent. The MNPs within the gel provide active adsorption functionality, while CNF provide a good stress transfer phenomenon when the beads are under compressive stress. Their adsorption performance is evaluated in a red mud solution for pollutant adsorption. Composite gel beads have shown high performance in adsorbing metal (aluminium, potassium, selenium, sodium, and vanadium) and non-metal (sulphur) contaminations. This novel hybrid hydrogel could be a promising alternative to the conventionally used toxic adsorbent, providing environmentally friendly operational benefits.
Publisher: BMJ
Date: 04-07-2010
Abstract: The core components of physical activity, cardiovascular endurance, muscular strength, balance and flexibility can provide many health benefits and potentially slow declines associated with aging. Aerobic exercise message to the public has been widely promoted by national health authorities, although the promotion of resistance training has received far less attention. In this research, the prevalence of resistance training in a s le of adults living in regional Australia was primarily assessed. A computer-assisted telephone interview survey (n=1230) was conducted by the Population Research Laboratory at Central Queensland University on Queensland adults in October to November 2006. Respondents were asked to report the frequency with which they engaged in resistance training. Respondents were 18 years or older that could be contacted by direct-dialled, land-based telephone service. A telephone database using a computer program to select, with replacement, a simple random s le of phone numbers selected respondents. Almost 14% of the population did some form of gym-based resistance training in the week before the survey. There was a significant (p<0.05) reduction in participation levels with age. Participation was highest amongst the youngest 18-34-year-olds (23.8%), steadily declining with age to a low of 7% in the 55 years and older age group. There was no significant association between sexes and participation in resistance training. The findings underscore the need to increase overall education on the benefits of resistance training with an emphasis among targeted adult populations to increase participation in resistance training.
Publisher: Elsevier BV
Date: 08-2014
Publisher: Elsevier BV
Date: 04-2005
DOI: 10.1016/J.YPMED.2004.06.017
Abstract: Research has recently adopted the use of social-ecological models in the study of physical activity. Few studies, however, have addressed the influence of the environment on activity using Geographic Information System (GIS)-derived measures of environmental attributes and self-report ratings of other environmental attributes. Even fewer have examined walking behaviors. Self-report measures of physical activity, social support, self-efficacy, and perceived neighborhood environment were obtained by means of a Computer-Assisted-Telephone-Interview (CATI) survey of 1,281 residents of Rockh ton, Queensland. Over 94% (1,215) of respondents' residential locations were successfully geocoded into the existing city council GIS database. The self-report data, along with GIS-derived measures, were used to determine the relationships among selected variables of the neighborhood environment for each geocoded location. GIS-derived measures of street connectivity and proximity to parkland, the number of active people in a 1-km radius, and self-reported perceptions of neighborhood cleanliness showed associations with the likelihood of achieving sufficient levels of physical activity when adjusting for selected psychosocial variables. GIS-derived Euclidian distance to footpath networks, number of dogs in 0.8-km radius, network distance to newsagents, and perceptions of footpath condition were significantly associated with the likelihood of participating in any recreational walking. Environmental characteristics were found to have differential influences on the two selected measures of physical activity. Aesthetics and safety appear to be important influences of physical activity, whereas proximal footpaths showed increased likelihood of participation in recreational walking. It is proposed that the strength of association between the environmental and physical activity may be improved if future research utilizes a Geographic Information System approach to the study of restricted geographical areas.
Publisher: Elsevier BV
Date: 09-2009
DOI: 10.1016/J.JSAMS.2008.10.010
Abstract: The purpose of the paper is to review the utility of the global positioning system (GPS) in the study of health-related physical activity. The paper draws from existing literature to outline the current work performed using GPS to examine transport-related physical activity, with a focus on the relative utility of the approach when combined with geographic information system (GIS) and other data sources including accelerometers. The paper argues that GPS, especially when used in combination with GIS and accelerometery, offers great promise in objectively measuring and studying the relationship of numerous environmental attributes to human behaviour in terms of physical activity and transport-related activity. Limitations to the use of GPS for the purpose of monitoring health-related physical activity are presented, and recommendations for future avenues of research are discussed.
Publisher: Springer Science and Business Media LLC
Date: 26-06-2017
Publisher: American Chemical Society (ACS)
Date: 23-01-2018
Publisher: Springer Science and Business Media LLC
Date: 05-09-2005
Abstract: Several narrative reviews have been conducted on the literature examining environmental correlates of physical activity (PA). To date these reviews have been unable to provide definitive summaries of observed associations. This study utilizes meta-analytical techniques to calculate summaries of associations between selected environmental characteristics and PA. Published studies were identified from electronic databases and searches of personal files. Studies were examined to determine the environmental constructs most frequently studied. Included studies (N = 16) examined at least one identified construct and determined associations between perceived environmental constructs and PA using logistic regression. Data were analyzed separately for crude and adjusted ORs using general-variance based fixed effect models. No significant associations emerged between environmental characteristics and PA using crude OR. The perceived presence of PA facilities (OR 1.20, 95% 1.06–1.34), sidewalks (OR 1.23, 95% 1.13–1.32), shops and services (OR 1.30, 95% 1.14–1.46) and perceiving traffic not to be a problem (OR 1.22, 95% 1.08–1.37) were positively associated with activity using adjusted ORs. Variance in PA accounted for by significant associations ranged from 4% (heavy traffic not a problem) to 7% (presence of shops and services). Results of the meta-analysis support the relevance of perceived environmental characteristics for understanding population PA. These results should encourage the use of comprehensive ecological models that incorporate variables beyond basic demographic information.
Publisher: Elsevier BV
Date: 10-2012
Publisher: Elsevier BV
Date: 06-2010
DOI: 10.1111/J.1753-6405.2010.00521.X
Abstract: Regular monitoring of population levels of physical activity is an effective way to assess change over time towards meeting public health recommendations. The objective of this study was to determine physical activity trends in Central Queensland over the period 2002 to 2008. Data was obtained from the Central Queensland Social Survey (CQSS) conducted annually from 2002 to 2008. A total s le of 8,936 adults aged 18 and over participated in seven cross-sectional surveys. Physical activity was measured using the Active Australia Questionnaire. Binary logistic regression was used to examine trends in sufficient physical activity. Averaged over all survey years 46.5% of study participants met national physical activity guidelines. A small significant upward trend was found for meeting physical activity recommendations across all years (OR=1.03 95%CI=1.01-1.05), indicating that the odds of meeting the guidelines increased by an average of 3% per year from 2002 to 2008. Slightly more men than women met the activity guidelines (ns) however a significant positive trend in achieving sufficient activity levels was present in women only (4%). Although an increasing trend for sufficient physical activity was observed, overall physical activity levels in Central Queensland remain suboptimal and more efforts to increase physical activity are needed. The gender differences in physical activity trends indicate that men and women might need to be targeted differently in health promotion messages. The continuous monitoring of population levels of physical activity in Australia, which allow both state specific and international comparisons, is needed.
Publisher: Elsevier BV
Date: 05-2015
Publisher: Elsevier BV
Date: 07-2012
DOI: 10.1016/J.YPMED.2012.05.003
Abstract: Associations between the combined effect of physical activity and screen based activities on health related quality of life remain largely undetermined. During 2008-2010, cross-sectional data for self-reported health related quality of life, physical activity, and screen-time were collected for 3796 Australian adults. Logistic regression was conducted to examine associations for six combinations of physical activity (none, insufficient, and sufficient), and screen-time (low and high) on health related quality of life. In comparison to the reference category (sufficient physical activity and low screen-time) men and women who reported no physical activity and either high (OR=4.52, 95% CI 2.82-7.25) or low (OR=2.29, 95% CI 1.37-3.80) screen-time, were significantly more likely to report over 14 unhealthy days. Men reporting either no physical activity and high (OR=3.15, 95% CI 1.92-5.15), or low (OR=2.17, 95% CI 1.30-3.63) screen-time insufficient physical activity and high (OR=1.68, 95% CI 1.08-2.60), or low (OR=1.79, 95% CI 1.14-2.82) screen-time were more likely to rate their health as poor or fair. In women this was significant for those who reported no physical activity and high screen-time (OR=1.98, 95% CI, 1.19-3.31). Results suggest that the combination of no physical activity and high screen-time demonstrated the greatest negative impact on health related quality of life.
Publisher: Elsevier BV
Date: 2021
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1TA03264J
Abstract: This review demonstrates the application of nanocellulose-based polymer brushes in a range of different industries.
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2TA08019B
Abstract: Development of biodegradable and functionalised face mask nonwovens to address the plastic pollution issue generated by disposable face masks.
Publisher: Springer Science and Business Media LLC
Date: 20-03-2010
Publisher: Springer Science and Business Media LLC
Date: 04-2009
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2TA90276A
Abstract: Correction for ‘Co, Fe and N co-doped 1D assembly of hollow carbon nanoboxes for high-performance supercapacitors’ by Minjun Kim et al. , J. Mater. Chem. A , 2022, 10 , 24056–24063, 0.1039/D2TA06950D.
Publisher: Springer Science and Business Media LLC
Date: 09-11-2020
Publisher: Springer Science and Business Media LLC
Date: 22-06-2019
Publisher: Elsevier BV
Date: 11-2009
Publisher: American Chemical Society (ACS)
Date: 27-11-2018
Publisher: Springer Science and Business Media LLC
Date: 29-06-2015
Publisher: Elsevier BV
Date: 10-2016
Publisher: Elsevier BV
Date: 10-2022
Publisher: Springer Science and Business Media LLC
Date: 04-02-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2TA06950D
Abstract: In this study, we successfully demonstrate the synthesis of a novel necklace-like Co, Fe, and N co-doped one-dimensional (1D)-assembly of hollow carbon nanoboxes (1D-HCNB- x ) and its potential for supercapacitor application.
Publisher: JMIR Publications Inc.
Date: 29-02-2012
DOI: 10.2196/JMIR.1998
Publisher: American Chemical Society (ACS)
Date: 07-03-2017
Publisher: JMIR Publications Inc.
Date: 20-04-2012
DOI: 10.2196/JMIR.1950
Publisher: Elsevier BV
Date: 06-2013
Publisher: Elsevier BV
Date: 07-2011
DOI: 10.1016/J.JSAMS.2011.03.005
Abstract: Early research has shown that leadership behaviour is viewed as a crucial factor in successfully developing team cohesion, effectively resulting in greater team satisfaction and more positive team outcomes. However, little is understood if these same factors have an impact on physical activity groups. The purpose of this study was to investigate the relationship between leader behaviours and group cohesiveness within women's physical activity groups. Participants (N = 95) included a sub-s le of adult women who were previously involved in a women's physical activity/walking program. Participants assessed their groups' leader behaviour using items pertaining to enthusiasm, motivation, instruction and availability, and their groups' cohesiveness using the Physical Activity Group Environment Questionnaire (PAGEQ). Canonical correlation analysis was used to determine the strength of association between the four concepts of group cohesion (ATG-T, ATG-S, GI-T and GI-S) and the four items pertaining to leadership behaviour. A significant multivariate relationship was revealed between group cohesion and leadership behaviour, Wilks' lambda = 0.43, F(16,170) = 5.16, p < 0.001. The canonical correlation for this function was R(C) = 0.74, indicating a strong relationship. Simply stated, group leaders who were perceived as being highly enthusiastic, have the ability to motivate, are able to provide personal instruction and who are available outside of the group's regular activities were associated with higher levels of group cohesion. Although a cause-effect relationship cannot be determined, the current study can serve as a valuable template in guiding future research in examining potential mechanisms that may assist with physical activity sustainability.
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 10-2007
Publisher: Elsevier BV
Date: 04-2013
DOI: 10.1016/J.SLEEP.2012.12.007
Abstract: The relationship between short sleep and obesity remains unclear, and a possible explanation is that many studies have not included sufficient control variables in the analyses. We examined the association between sleep and being overweight or obese after adjusting for the confounding contributions of 17 variables. A random s le of 1162 Australian adults from three regional cities in central Queensland, Australia, participated in a telephone survey. A series of increasingly complex multinomial logistic regression models were employed to assess the association between short sleep ( or = 30 kg/m2), while controlling for several demographic, lifestyle, work, and health-related variables. The results suggested obesity was significantly associated with short sleep, age, male gender, lower education level, less physical activity, more sitting time, working longer hours, drinking more alcohol, having diabetes mellitus (DM), and having hypertension. Being overweight was significantly associated with age, male gender, smoking, and working more than 43hours per week. After adjustment of several confounding variables, a significant association between short sleep and obesity was obtained, but there was no association between short sleep and being overweight. Additional studies applying comprehensive analytic models and stronger research designs are needed to confirm our findings.
Publisher: Elsevier
Date: 2017
Publisher: Springer Science and Business Media LLC
Date: 12-2012
Publisher: American Chemical Society (ACS)
Date: 04-06-2019
Publisher: SAGE Publications
Date: 19-04-2012
Abstract: Little attention has been paid to the physical activity (PA) and nutrition behaviors of middle-aged men thus, the aim of this study was to gather information and gain insight into the PA and nutrition behaviors of these men. Six focus group sessions were undertaken with middle-aged men ( N = 30) from regional Australia to explore the challenges and motivations to PA participation and healthy eating. Men had a good understanding of PA and nutrition however, this was sometimes confounded by inconsistent media messages. Work commitments and family responsibilities were barriers to PA, while poor cooking skills and abilities were barriers to healthy eating. Disease prevention, weight management, and being a good role model were motivators for PA and healthy eating. By understanding what a man wants, PA and nutrition interventions can be designed and delivered to meet the needs of this hard-to-reach population.
Publisher: The Chemical Society of Japan
Date: 15-01-2022
Publisher: Elsevier BV
Date: 07-2020
Start Date: 2016
End Date: 2016
Funder: University of Queensland
View Funded ActivityStart Date: 2015
End Date: 2016
Funder: Australian Academy of Science
View Funded ActivityStart Date: 2018
End Date: 2018
Funder: ABC
View Funded ActivityStart Date: 2021
End Date: 2021
Funder: Department of Education, Skills and Employment, Australian Government
View Funded ActivityStart Date: 2017
End Date: 2020
Funder: Australian Research Council
View Funded ActivityStart Date: 2018
End Date: 2019
Funder: Bragg Institute Neutron Beam Instrument
View Funded ActivityStart Date: 2018
End Date: 2016
Funder: Australian Nanotechnology Network
View Funded ActivityStart Date: 2021
End Date: 2021
Funder: Australia-Japan Foundation
View Funded ActivityStart Date: 2020
End Date: 2023
Funder: Advance Queensland
View Funded ActivityStart Date: 2023
End Date: 12-2025
Amount: $396,654.00
Funder: Australian Research Council
View Funded ActivityStart Date: 12-2017
End Date: 03-2021
Amount: $173,000.00
Funder: Australian Research Council
View Funded Activity