JCU Singapore

Yuto Yasuda

Yuto Yasuda

Hina Munir

Hina Munir

Lijuan Shen

Lijuan Shen

Cindy Liu

Cindy Liu

Jonathan Chia

Jonathan Chia

Erik Hormann

Erik Hormann

Jennifer Chong

Jennifer Chong

Barry Tse

Barry Tse

Kaiqin Chan

Kaiqin Chan

Caroline Wong

Caroline Wong

Addressing Bedtime Procrastination with Behavioural Technology: Introducing SleepSync
Ghazalnaz Sharifonnasabi
13 Oct 2025 - 17 Oct 2025
With rising concerns about sleep-related health issues, researchers have di-rected their focus to understanding how bedtime procrastination contributes to sleep-related problems and the ways to tackle it how to tackle it. This is due to evidence linking bedtime procrastination to poor sleep quality and quantity, increased daytime fatigue, and poor sleep cycle. Technological ad-vancements have emerged as promising tools, with numerous sleep-tracking and sleep- behaviour apps developed to address sleep-related issues. How-ever, the existing apps exhibit critical gaps in targeting bedtime procrastina-tion behaviours. The present paper reviews the current landscape of sleep apps by analyzing how the apps monitor and mitigate sleep-related behaviour and highlights existing gaps in this domain. Next, we introduce SleepSync, an innovative app specifically designed to address bedtime procrastination be-haviour. SleepSync's design integrates Carver and Scheier’s self-regulation theory and Zajonc’s social facilitation effect to enhance users’ self-regulation and behavioural activation through behavioural interventions, sleep tracking, and gamification. The validation and future iterations of the SleepSync prototype will shape it into a fully functional, user-friendly mo-bile app suitable for everyday use and broader commercialization.
Addressing Bedtime Procrastination with Behavioural Technology: Introducing SleepSync
Ghazalnaz Sharifonnasabi
13 Oct 2025 - 17 Oct 2025
With rising concerns about sleep-related health issues, researchers have di-rected their focus to understanding how bedtime procrastination contributes to sleep-related problems and the ways to tackle it how to tackle it. This is due to evidence linking bedtime procrastination to poor sleep quality and quantity, increased daytime fatigue, and poor sleep cycle. Technological ad-vancements have emerged as promising tools, with numerous sleep-tracking and sleep- behaviour apps developed to address sleep-related issues. How-ever, the existing apps exhibit critical gaps in targeting bedtime procrastina-tion behaviours. The present paper reviews the current landscape of sleep apps by analyzing how the apps monitor and mitigate sleep-related behaviour and highlights existing gaps in this domain. Next, we introduce SleepSync, an innovative app specifically designed to address bedtime procrastination be-haviour. SleepSync's design integrates Carver and Scheier’s self-regulation theory and Zajonc’s social facilitation effect to enhance users’ self-regulation and behavioural activation through behavioural interventions, sleep tracking, and gamification. The validation and future iterations of the SleepSync prototype will shape it into a fully functional, user-friendly mo-bile app suitable for everyday use and broader commercialization.
Conference Attendance - Diseases in Asian Aquaculture 22-27 Sept 2025
Susan Kueh
22 Sep 2025 - 27 Sep 2025
Present at 12th Diseases in Asian Aquaculture Symposium and bid for 13th DAA to be held in Singapore in 2028
PROVISION OF TRAINING SERVICES FOR AQUACULTURE FARMS FOR TWO YEARS
Susan Kueh
01 Sep 2025 - 31 Dec 2027
The Singapore Food Agency (or “SFA”) is inviting suppliers for proposals on the provision of training services to aquaculture (i.e. food fish) farms in Singapore to enhance farmers’ capability and skills on farm management and good aquaculture practices. To contribute to Singapore’s Aquaculture Plan, farms will need guidance to mitigate the increased risk of diseases as they intensify production on limited space. The services shall be provided over a period of 2 years.
PROVISION OF TRAINING SERVICES FOR AQUACULTURE FARMS FOR TWO YEARS
James Loh
01 Sep 2025 - 31 Dec 2027
The Singapore Food Agency (or “SFA”) is inviting suppliers for proposals on the provision of training services to aquaculture (i.e. food fish) farms in Singapore to enhance farmers’ capability and skills on farm management and good aquaculture practices. To contribute to Singapore’s Aquaculture Plan, farms will need guidance to mitigate the increased risk of diseases as they intensify production on limited space. The services shall be provided over a period of 2 years.
Optimizing Poultry Meal and Gelatin Concentrations in Feed for Scylla serrata: Effects on Growth, Digestibility, Survival, and Pellet Performance
Susan Kueh
01 Oct 2025 - 30 Sep 2027
This research investigates the effects of varying gelatin and poultry meal concentrations in feed formulations for Scylla serrata (mud crab) through two distinct trials aimed at enhancing pellet performance, growth, digestibility, and survival in aquaculture settings. In Trial 1, the focus is on evaluating gelatin concentrations of 8%, 12%, and 16% to determine their impact on pellet properties and palatability. The diets are carefully formulated to be isonitrogenous (approximately 43% crude protein) and isolipidic (approximately 15% crude lipid), incorporating 9% poultry meal while adjusting soybean meal to balance the gelatin variations. Feed preparation involves grinding dry ingredients—such as fishmeal, soybean meal, krill meal, poultry meal, and wheat flour—to a particle size of less than 500 μm, followed by thorough mixing. Gelatin is dissolved in warm water (50–60°C), combined with the dry mix along with fish and squid oils, extruded through a 10-mm die, and dried to achieve approximately 10% moisture content. The experimental design comprises nine pellet batches (three diets, each with three replicates), which are assessed for dry hardness using breaking force or a subjective scale, softness after rehydration in saline water through water absorption and compression force measurements, storage efficiency over eight weeks by monitoring lipid oxidation (peroxide value) and physical integrity, and palatability based on feed consumption rates observed in nine crabs. Trial 2 shifts the focus to poultry meal concentrations of 0%, 5%, 9%, 15%, and 20%, utilizing diets with 12% gelatin and chromic oxide as a digestibility marker. These diets are formulated by progressively replacing soybean meal with poultry meal to maintain nutrient consistency. The setup involves 150 adult crabs (100–200 g), each housed individually in PVC containers equipped with shelters to prevent cannibalism and fed twice daily at 5% body weight for eight weeks under controlled environmental conditions (25 ppt salinity, 28°C, pH 7.5–8.5, dissolved oxygen >5 mg/L). Data collection encompasses growth metrics including weight gain, specific growth rate, and carapace dimensions, apparent digestibility determined through fecal chromic oxide analysis, survival rates, and, if feasible, additional parameters such as digestive enzyme activities and blood biochemistry. Statistical analysis for both trials employ one-way ANOVA or Kruskal-Wallis tests, with post-hoc analysis conducted at a significance level of p < 0.05 to evaluate differences across treatments. This study aims to develop optimized, sustainable feed formulations to support mud crab aquaculture effectively.
Optimizing Poultry Meal and Gelatin Concentrations in Feed for Scylla serrata: Effects on Growth, Digestibility, Survival, and Pellet Performance
James Loh
01 Oct 2025 - 30 Sep 2027
This research investigates the effects of varying gelatin and poultry meal concentrations in feed formulations for Scylla serrata (mud crab) through two distinct trials aimed at enhancing pellet performance, growth, digestibility, and survival in aquaculture settings. In Trial 1, the focus is on evaluating gelatin concentrations of 8%, 12%, and 16% to determine their impact on pellet properties and palatability. The diets are carefully formulated to be isonitrogenous (approximately 43% crude protein) and isolipidic (approximately 15% crude lipid), incorporating 9% poultry meal while adjusting soybean meal to balance the gelatin variations. Feed preparation involves grinding dry ingredients—such as fishmeal, soybean meal, krill meal, poultry meal, and wheat flour—to a particle size of less than 500 μm, followed by thorough mixing. Gelatin is dissolved in warm water (50–60°C), combined with the dry mix along with fish and squid oils, extruded through a 10-mm die, and dried to achieve approximately 10% moisture content. The experimental design comprises nine pellet batches (three diets, each with three replicates), which are assessed for dry hardness using breaking force or a subjective scale, softness after rehydration in saline water through water absorption and compression force measurements, storage efficiency over eight weeks by monitoring lipid oxidation (peroxide value) and physical integrity, and palatability based on feed consumption rates observed in nine crabs. Trial 2 shifts the focus to poultry meal concentrations of 0%, 5%, 9%, 15%, and 20%, utilizing diets with 12% gelatin and chromic oxide as a digestibility marker. These diets are formulated by progressively replacing soybean meal with poultry meal to maintain nutrient consistency. The setup involves 150 adult crabs (100–200 g), each housed individually in PVC containers equipped with shelters to prevent cannibalism and fed twice daily at 5% body weight for eight weeks under controlled environmental conditions (25 ppt salinity, 28°C, pH 7.5–8.5, dissolved oxygen >5 mg/L). Data collection encompasses growth metrics including weight gain, specific growth rate, and carapace dimensions, apparent digestibility determined through fecal chromic oxide analysis, survival rates, and, if feasible, additional parameters such as digestive enzyme activities and blood biochemistry. Statistical analysis for both trials employ one-way ANOVA or Kruskal-Wallis tests, with post-hoc analysis conducted at a significance level of p < 0.05 to evaluate differences across treatments. This study aims to develop optimized, sustainable feed formulations to support mud crab aquaculture effectively.
Supply of training services for half day courses on 1)Fish Stock Handling and 2) Aquaculture Disease Prevention and Response
Susan Kueh
01 May 2023 - 31 Dec 2023
This ITQ invites training providers to submit proposals to conduct training courses for aquaculture farmers. To contribute to Singapore’s “30 by 30” local production goal, farmers will need guidance to mitigate the increased risk of diseases as they intensify production on limited space.
Development of the Singapore Workplace Wellbeing Scale
Chad Yip
08 Oct 2025 - 31 Dec 2025
The present research described the development of the Singapore Workplace Wellbeing scale which identified the factors that influence employee wellbeing in the Singapore workplace context. Participants from various industries in Singapore completed an online survey containing a battery of measures including the new workplace wellbeing measure in two separate studies. Study 1 involved (N = 318) conducting a parallel analysis followed by exploratory factor analysis on items generated from a qualitative study by Yip et al., (2024) in which the authors identified 13 distinct factors that contributed to workplace wellbeing and concluded that expression of these factors was unique to the Singapore context. A confirmation factor analysis was conducted on study 2 (N = 303) which confirmed a 13-factor scale with 99 items. These factors were support from boss, fairness, autonomy, meaningful work, co-worker relationship, role clarity, work-life balance, learning and professional growth, person-organization fit, employee engagement, employee recognition, flexitime work, accomplishment, and organization support. The new scale showed sound construct reliability, internal consistency, convergent validity, discriminant, and nomological validity. Importantly, the scale showed significant and positive association with job performance and flourishing, but a significant and negative association with burnout and the negative emotional state of depression, anxiety, and stress. The scale has significant potential to be used as workplace wellbeing screening tool and in research in the the Singapore context. Implications, future directions, and limitations of the research are discussed.
Air nanobubbles enhance nitrifying bacteria activity in marine RAS
Susan Kueh
27 Oct 2025 - 28 Nov 2025
This publication stems from the findings in two special topic projects within the JCU Science Aquaculture major degree, on use of nanobubbles in marine recirculating aquaculture systems stocked with tilapia, red snapper and barramundi. The two students have since graduated from JCUS, and completed or currently pursuing an MSc. Afifah Sean (1st author) carried out the microbiological assessment of the marine RAS during the 6 week experimental trial, using a flow cytometer on loan from Sysmex Asia Pacific PL. Tzer Shyun Lim (2nd author) managed the marine RAS injected with nanobubbles and the control system without nanobubbles, and determined the growth performance of fish stocked in these systems. The nanobubble delivery system was on loan from AquaPro Solutions PL. Afifah's project was supervised by Susan Gibson-Kueh, and Tzer Chyun's was supervised by Jose Domingos. Xueyan Shen provided expertise to analyse and interprete the microbiome profile in the marine RAS based on 16S rRNA gene analysis. These student projects are a fantastic showcase of our research impacting undergraduate teaching and learning, multidisciplinary collegial collaborations, and industry participation in higher education.
Title: Corporate staff Excellence Awards 2021: Professional Team award for Excellence James Cook University Singapore
Reseracher: Caroline Wong (Associate Dean Learning & Teaching / Associate Professor)
Start Date: 01 Jan 2001
Title: Engagement Excellence Awards 2021: Professional engagement award James Cook University Singapore
Reseracher: Caroline Wong (Associate Dean Learning & Teaching / Associate Professor)
Start Date: 01 Jan 2001
Title: Invited International Export for ADB Project on Energy Efficiency and Emissions
Reseracher: Peter Hofman (Director of Post Graduate Studies Business/Professor Business)
Start Date: 01 Jan 2015
End Date: 01 Jan 2016
Title: International Member of the China Council for International Cooperation on Environmental and Development (CCICED) for a special policy study on Corporate Social Responsibility and Green Development
Reseracher: Peter Hofman (Director of Post Graduate Studies Business/Professor Business)
Start Date: 01 Jan 2013
End Date: 01 Jan 2014
Title: Editorial Board Member, Asian Business & Management
Reseracher: Peter Hofman (Director of Post Graduate Studies Business/Professor Business)
Title: Quarterly Employee Recognition Award: Feather in your Cap: 1st Quarter 2021
Reseracher: Caroline Wong (Associate Dean Learning & Teaching / Associate Professor)
Title: Guest Professor in Corporate Social Responsibility; Nanjing University of Finance and Economics, Nanjing, China
Reseracher: Peter Hofman (Director of Post Graduate Studies Business/Professor Business)
Start Date: 01 Jan 2012
End Date: 01 Jan 2015
Title: Royal Statistical Society
Reseracher: Peter Chew (Associate Professor)
Start Date: 01 Jan 2017
End Date: 01 Jan 2020
Title: Graduate School Travel Prize
Reseracher: Frederick P.K Low (Associate Professor Counselling)
Start Date: 01 Jan 2011
Title: Out-of-the-Ordinary Volunteer
Reseracher: Frederick P.K Low (Associate Professor Counselling)
Start Date: 01 Jan 2006