ORCID Profile
0000-0003-1214-6317
Current Organisations
Auckland University of Technology
,
University of Tasmania
,
University of Wollongong
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Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 10-2019
Publisher: Springer Berlin Heidelberg
Date: 2011
Publisher: Springer Singapore
Date: 16-11-2016
Publisher: Emerald
Date: 09-11-2021
DOI: 10.1108/JARHE-04-2021-0131
Abstract: This study estimated the prevalence of depressive disorders among PhD students and analyzed the underlying factors in the Indian context. The authors utilized an “Integrative framework” and a mixed-method approach involving survey and in-depth interviews. The survey was conducted among 240 PhD students using multistage cluster s ling in two public universities of Kerala, India. Data were collected using a self-administered Patient Health Questionnaire-9. In-depth interviews were conducted among 12 students using semi-structured interview guide. Multinomial regression and thematic analyses were undertaken to examine the factors associated with depressive disorders. About 31.7, 41.7, 17.9, 6.7 and 2.1% had no/minimal, mild, moderate, moderately severe and severe depressive disorders, respectively. Students belonging to economically weaker section (OR = 3.06 95% CI = 1.32–7.12), having limited knowledge of local language (OR = 4.24 95% CI = 1.00–17.95) and earning less than INR 20,000/month (OR = 2.36 95% CI = 1.12–5.00) were more likely to report moderate to severe depressive disorders. In addition, thematic analyses of interviews found that financial hardship, disagreement between student-supervisor, compromised students' support services and an uncertain job market were the key factors affecting the mental health of students and inhibiting academic performance. This study adds to the existing literature by examining the prevalence and underlying factors of depressive disorders among doctoral students in the Indian context. The results of this study can act as a guide for universities and educational regulatory bodies to address the burgeoning issue of depressive disorders among research students in India.
Publisher: IEEE
Date: 07-2013
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 06-2019
Publisher: Springer Japan
Date: 2014
Publisher: ACM
Date: 29-01-2018
Publisher: Oxford University Press (OUP)
Date: 23-02-2019
Publisher: IEEE
Date: 05-2008
DOI: 10.1109/ICIS.2008.21
Publisher: IEEE
Date: 11-2012
Publisher: Wiley
Date: 30-07-2023
DOI: 10.1002/ALZ.13401
Abstract: Finding low‐cost methods to detect early‐stage Alzheimer's disease (AD) is a research priority for neuroprotective drug development. Presymptomatic Alzheimer's is associated with gait impairment but hand motor tests, which are more accessible, have hardly been investigated. This study evaluated how home‐based Tasmanian (TAS) Test keyboard tapping tests predict episodic memory performance. 1169 community participants (65.8 ± 7.4 years old 73% female) without cognitive symptoms completed online single‐key and alternate‐key tapping tests and episodic memory, working memory, and executive function cognitive tests. All single‐key ( R 2 adj = 8.8%, ΔAIC = 5.2) and alternate‐key ( R 2 adj = 9.1%, ΔAIC = 8.8) motor features predicted episodic memory performance relative to demographic and mood confounders only ( R 2 adj = 8.1%). No tapping features improved estimation of working memory. Brief self‐administered online hand movement tests predict asymptomatic episodic memory impairment. This provides a potential low‐cost home‐based method for stratification of enriched cohorts. We devised two brief online keyboard tapping tests to assess hand motor function. 1169 cognitively asymptomatic adults completed motor‐ and cognitive tests online. Impaired hand motor function predicted reduced episodic memory performance. This brief self‐administered test may aid stratification of community cohorts.
Publisher: Springer Berlin Heidelberg
Date: 2010
Publisher: Springer International Publishing
Date: 2019
Publisher: Springer International Publishing
Date: 2014
Publisher: Springer International Publishing
Date: 2019
Publisher: Elsevier BV
Date: 08-2013
Publisher: IGI Global
Date: 2006
DOI: 10.4018/978-1-59140-827-7.CH003
Abstract: An intelligent agent is a reactive, proactive, autonomous, and social entity. The social ability of an agent is exercised in a multi-agent system (MAS), which constitutes a collection of such agents. Current multi-agent systems mostly work in complex, open, and dynamic environments. In an open environment, many facts, such as domain constraints, agent number, and agent relationships, are not fixed. That brings a lot of difficulties to coordinate agents’ interactions and cooperation. One major problem that impedes agent interaction is that most current agent interaction protocols are not very suitable for open environments. In this chapter, we introduce an approach to ameliorate agent interactions from two perspectives. First, the approach can enable agents to form knowledge “rich” interaction protocols by using ontologies. Second, we use coloured Petri net (CPN) based methods to enable agents to form interaction protocols dynamically, which are more suitable for agent interaction under open environments.
Publisher: Springer International Publishing
Date: 2019
Publisher: Springer Science and Business Media LLC
Date: 18-07-2022
DOI: 10.1186/S12883-022-02772-5
Abstract: The worldwide prevalence of dementia is rapidly rising. Alzheimer’s disease (AD), accounts for 70% of cases and has a 10–20-year preclinical period, when brain pathology covertly progresses before cognitive symptoms appear. The 2020 Lancet Commission estimates that 40% of dementia cases could be prevented by modifying lifestyle/medical risk factors. To optimise dementia prevention effectiveness, there is urgent need to identify in iduals with preclinical AD for targeted risk reduction. Current preclinical AD tests are too invasive, specialist or costly for population-level assessments. We have developed a new online test, TAS Test, that assesses a range of motor-cognitive functions and has capacity to be delivered at significant scale. TAS Test combines two innovations: using hand movement analysis to detect preclinical AD, and computer-human interface technologies to enable robust ‘self-testing’ data collection. The aims are to validate TAS Test to [1] identify preclinical AD, and [2] predict risk of cognitive decline and AD dementia. Aim 1 will be addressed through a cross-sectional study of 500 cognitively healthy older adults, who will complete TAS Test items comprising measures of motor control, processing speed, attention, visuospatial ability, memory and language. TAS Test measures will be compared to a blood-based AD biomarker, phosphorylated tau 181 (p-tau181). Aim 2 will be addressed through a 5-year prospective cohort study of 10,000 older adults. Participants will complete TAS Test annually and subtests of the Cambridge Neuropsychological Test Battery (CANTAB) biennially. 300 participants will undergo in-person clinical assessments. We will use machine learning of motor-cognitive performance on TAS Test to develop an algorithm that classifies preclinical AD risk (p-tau181-defined) and determine the precision to prospectively estimate 5-year risks of cognitive decline and AD. This study will establish the precision of TAS Test to identify preclinical AD and estimate risk of cognitive decline and AD. If accurate, TAS Test will provide a low-cost, accessible enrichment strategy to pre-screen in iduals for their likelihood of AD pathology prior to more expensive tests such as blood or imaging biomarkers. This would have wide applications in public health initiatives and clinical trials. ClinicalTrials.gov Identifier: NCT05194787 , 18 January 2022. Retrospectively registered.
Publisher: IEEE
Date: 10-2008
DOI: 10.1109/NPC.2008.8
Publisher: Springer Singapore
Date: 16-11-2016
Publisher: Elsevier BV
Date: 02-2023
Publisher: IEEE
Date: 11-2011
Publisher: Inderscience Publishers
Date: 2016
Publisher: Elsevier BV
Date: 03-2024
Publisher: Springer Berlin Heidelberg
Date: 2008
Publisher: Oxford University Press (OUP)
Date: 07-08-2018
Publisher: IEEE
Date: 2007
DOI: 10.1109/ICIS.2007.21
Publisher: Springer Berlin Heidelberg
Date: 2009
Publisher: Springer International Publishing
Date: 2020
Publisher: Springer International Publishing
Date: 2018
Publisher: Elsevier BV
Date: 12-2019
Publisher: IEEE
Date: 2009
DOI: 10.1109/ISPA.2009.14
Publisher: Springer Nature Switzerland
Date: 2022
Publisher: Oxford University Press (OUP)
Date: 07-01-2015
Publisher: Oxford University Press (OUP)
Date: 17-03-2017
Publisher: Springer Science and Business Media LLC
Date: 21-03-2018
Publisher: Springer Berlin Heidelberg
Date: 2010
Publisher: Elsevier BV
Date: 10-2017
Publisher: IEEE
Date: 11-2015
Publisher: IEEE
Date: 08-2015
Publisher: Springer International Publishing
Date: 2015
Publisher: Springer Science and Business Media LLC
Date: 26-05-2007
Publisher: Springer International Publishing
Date: 2018
Publisher: WORLD SCIENTIFIC
Date: 14-02-2013
Publisher: Springer Science and Business Media LLC
Date: 12-07-2021
Publisher: Elsevier BV
Date: 06-2022
Publisher: Springer International Publishing
Date: 2013
Publisher: Springer New York
Date: 2011
Publisher: Information Processing Society of Japan
Date: 2014
Publisher: Springer International Publishing
Date: 2016
Publisher: Springer International Publishing
Date: 2016
Publisher: Springer Berlin Heidelberg
Date: 2010
Publisher: JMIR Publications Inc.
Date: 05-07-2017
Publisher: Springer International Publishing
Date: 2016
Publisher: Elsevier BV
Date: 2023
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2017
Publisher: Elsevier BV
Date: 2024
Publisher: Springer International Publishing
Date: 2016
Publisher: Springer International Publishing
Date: 2016
Publisher: Springer Science and Business Media LLC
Date: 11-11-2020
Publisher: SAGE Publications
Date: 2015
DOI: 10.1155/2015/873941
Abstract: The wireless sensor-cloud networks (WSCNs) are becoming popular nowadays. The new concept of trust has emerged in recent studies as an alternative mechanism to address the security concern in WSCN. Most of the studies on trust are focusing on how to model and evaluate trust so as to effectively detect any malicious activity in the network and then isolate and avoid them. In addition, WSCNs are very dynamic and flexible, thus being hard to keep a static network topology and connectivity which bring more challenges to be secured. In this paper, we have introduced the new angle of adaptive network approach to discover the interplay between network node’s trust evaluation and its underlying topology change. It has been found that the network connectivity change will also have strong impact on the trust behavior running over it. Moreover, inspired from the trust studies in sociology, we propose that the Simmelian tie structured networks enable more positive impact on fostering trustworthiness among wireless sensor nodes, but the structural hole characterized networks provide more opportunity for misbehaviors and have negative impact on securing the sensor-cloud networks. The extensive simulation studies have confirmed our new concepts and validated our hypothesis
Publisher: Springer Berlin Heidelberg
Date: 2012
Publisher: IEEE
Date: 2009
Publisher: Springer Japan
Date: 2015
Publisher: Information Processing Society of Japan
Date: 2014
Publisher: IEEE
Date: 11-2015
Publisher: Elsevier BV
Date: 12-2018
Publisher: Springer Berlin Heidelberg
Date: 2005
DOI: 10.1007/11589990_70
Publisher: Springer Berlin Heidelberg
Date: 2010
Publisher: Springer International Publishing
Date: 2019
Publisher: Springer Berlin Heidelberg
Date: 2011
Publisher: Springer International Publishing
Date: 2016
Publisher: Springer International Publishing
Date: 2016
Publisher: Association for Computing Machinery (ACM)
Date: 31-12-2018
DOI: 10.1145/3337795
Abstract: In disasters, many stationary tasks, such as saving survivors in debris, extinguishing fire of buildings, and so on, need first responders to complete on site. In such circumstances, wireless mobile robots are usually employed to search for tasks and establish ad hoc networks to assist first responders. Due to the unknown and complexity of environments and limited capabilities of wireless mobile robots, searching and establishing ad hoc networks in disaster environments is a challenging issue in both theory and practice. To this end, a task-based wireless mobile robot deployment approach is proposed in this article. The proposed approach consists of a search process and a deployment process. The search process can guide wireless mobile robots to efficiently find tasks in unknown and complex environments. The deployment process can find suitable deployment locations for wireless mobile robots to establish ad hoc networks. The established ad hoc networks can ensure the communication of wireless mobile robots in the network and can cover the maximum number of task locations and the maximum areas in a disaster environment. Experimental results demonstrate that based on the proposed approach, wireless mobile robots have better performance in terms of search and ad hoc network establishment in disaster environments.
Publisher: Springer International Publishing
Date: 2016
Publisher: IEEE
Date: 12-2012
Publisher: Elsevier BV
Date: 11-2016
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 03-2016
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2019
Publisher: IEEE
Date: 06-2013
DOI: 10.1109/SCC.2013.85
Publisher: IGI Global
Date: 07-2009
Abstract: In multi-agent systems, negotiations are important activities for solving agent conflicts and forming agent cooperation. Nowadays, many applications require multi-agent systems to work in open and dynamic environments. In such working environments, agents need to face various changeable factors in negotiations The dynamic features of open environments make the need of a flexible mechanism to handle agent negotiations that can involve various negotiation protocols and to allow agents to form dynamic negotiation relationships. In this article, we bring some advantages of Colored Petri Net techniques to capture dynamic and concurrent features of agent negotiations, and propose a Colored Petri Net based approach to model and handle agent negotiation activities. In this approach, agents can choose different protocols, which are represented in Colored Petri Net models, to operate negotiations. In addition, this approach supports flexible negotiations that involve different number of negotiation partners.
Publisher: Springer International Publishing
Date: 2014
Publisher: Springer Science and Business Media LLC
Date: 24-11-2011
Publisher: Springer Nature Switzerland
Date: 2022
Publisher: Elsevier BV
Date: 02-2019
Publisher: IEEE
Date: 12-2015
Publisher: Springer Japan
Date: 2014
No related grants have been discovered for Quan Bai.