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Customer participation is an external knowledge source that could be used for enterprise innovation. However, extant studies on the effect of customer participation are inconsistent, casting doubt on what success factors affect customer participation innovation performance. With customers and employees increasingly forming enterprise's collaborative team and their interaction of knowledge shaping a knowledge collaboration network, micro-individual factors become vital. Drawing on complex network and evolutionary game theory, this study explores the effects of dynamic strategy (cooperation choice) and updating network structure (network rewiring) towards customer participation innovation performance. Based on multiagent simulation method, a knowledge collaboration network model was built to characterize the process of customer's interaction with employees, with statistical measures, i.e., average knowledge, knowledge increase rate, knowledge standard deviation rate of the customer, employee, and the total, respectively. Through the comparison and analysis of the effects of dynamic strategy and updating network structure, this study concludes the following: (1) the cooperation decades over time when the initial cooperation rate is less than half; (2) a higher cooperation rate benefits innovation; (3) dynamic strategy proceeds fixed strategy; however, when strategy is dynamic but is updated fast, innovation falls; (4) updating network structure is superior to fixed structure, and when team members could update their network ties fast, innovation gets higher level; and (5) however, when both strategy and network structure could be updated fast, innovation level performs better than other cases. Accordingly, innovation team managers need to give team members a chance to update connections and coordinate the updating frequency of strategy and structure properly. [ABSTRACT FROM AUTHOR]

Studies have shown the prevalence of mental health and obesity among adolescents is at increasing trend due to urbanisation and changes in lifestyle. This study is to investigate the level of stress and its impact on eating behaviour among Malaysian adolescents. A total of 797 multi-ethnic Malaysian secondary school student participated in this cross-sectional study. Data was collected two weeks prior to final year examination. A validated Cohen Perceived Stress Scale questionnaire was used to assess the stress level with subsample analysis of 261 participants' saliva cortisol level. A validated Child Eating Behaviour questionnaire was used to explore eating behaviours. There were 29.1% adolescents having high stress with the mean saliva cortisol 3.8 nmol/L. A positive correlation was observed between perceived stress and emotional overeating; stronger among urban (r = 0.32), female (r = 0.31), underweight (r = 0.34) and moderately stressed adolescents (r = 0.24). In addition, a positive correlation was found between perceived stress and food responsiveness; strongest among Malay (r = 0.23), male (r = 0.24), underweight (r = 0.30) and adolescents with high perceived stress (r = 0.24). The perceived stress level prior to exam period affects the emotional eating and external eating patterns of adolescents. [ABSTRACT FROM AUTHOR]

Green roofs have gained much attention as a modern roofing surface due to their potential to deliver many environmental and social benefits. Studies have indicated that different GR designs deliver different ecosystem services, and there are important factors that affect GR performance. This article reviewed significant factors that influence GR performance and sustainability. Substrate and drainage layer material choice significantly affects stormwater retention potential, leachate quality, plant survival, and determines GR environmental footprints. Subsequently, type of plants, their form, and kinds used on GRs impact GR ecosystem function. Leaf area is the most studied trait due to its influence on the cooling potential and energy performance. In order to achieve a sustainable GR, it is essential to select the type of plants that have a high survival rate. Perennial herbs, particularly forbs and grass as dominant groups, are heat and drought tolerant, which make them suitable in GR experiment. Furthermore, selecting a suitable irrigation system is as important as two other factors for having a sustainable GR. Irrigation is essential for plant survival, and due to the current pressure on valuable water sources, it is important to select a sustainable irrigation system. This review presents three sustainable irrigation methods: (i) employing alternative water sources such as rainwater, greywater, and atmospheric water; (ii) smart irrigation and monitoring; and (iii) using adaptive materials and additives that improve GR water use. This review sheds new insights on the design of high-performance, sustainable GRs and provides guidance for the legislation of sustainable GR. [ABSTRACT FROM AUTHOR]

This study quantitatively investigated the scientific progress of walkability research landscape and its future prospects using bibliometric indicators to highlight the research hotspots. The results accentuated multifaceted nature of walkability research landscape with a strong association towards public health disciplines. Keyword co-occurrence analysis emphasized that majority of the walkability studies centred on the interactions between walking and other three main factors such as built environment attributes, transportation and obesity. Based on the identified research hotspots, a brief state-of-the-art review of walkability studies was presented. Future prospects based on the unexplored research gaps within the hotspots were also discussed. High correlation (r = 0.99, p < 0.05) between annual publications and citation counts demonstrated the significance of walkability studies to the contemporary scientific community. Being one of the comprehensive studies to evaluate the historic trajectory of walkability research landscape, the findings were expected to accelerate a comprehensive understanding of the walkability research domain that will assist future research direction. [ABSTRACT FROM AUTHOR]

In response to a significant contribution of batik industries towards water pollution in Kelantan, this study sought to examine the environmental awareness of the community staying in the vicinity of batik manufacturing units in Kelantan. In this cross-sectional study, 160 participants were administered with interviewer-assisted questionnaire surveys between November 2013 and December 2013. Information pertaining to the participants' awareness of the batik manufacturing process, nature and disposal of dyes as well as the associated environmental and health impacts due to improper wastewater discharges were recorded. Chi square and multivariate binary logistic regression model was deployed to determine the significance between the socio-demographic variables and the items assessed to explore their environmental awareness. Despite a limited awareness on the batik manufacturing process and chemical properties of dyes, more than half of the study participants were more likely to be aware of the dye disposal methods utilized by the manufacturing units as well as the environmental and health impacts of the wastewater discharges in their neighbourhood. Among the socio-demographic variables, having a formal education recorded a significant association with the nature of dye, dye disposal method, environmental and health impacts due to improper dye disposal. In a nutshell, this study contributed useful empirical insights on the current environmental awareness levels of the community near the batik manufacturing units in Kelantan to devise interventions for the cultivation of community-based surveillance. [ABSTRACT FROM AUTHOR]

The various benefits of biofuels versus fossil fuels due to recent global challenges and issues are the best approach toward low-cost economic production of renewable energy. This study is trying to obtain economic catalysts with easy fabrication technology. The synthesized catalysts were obtained using calcium oxide/nanoclay catalysts by an initial ion-exchange reaction of calcium oxide and nanoclays (montmorillonite). These catalysts have been synthesized for the first time by being stirred for 5 h at a temperature of 80 °C, and the colloidal supernatant is obtained and kept in an ultrasonic bath for 20 min. The solution was filtered, washed several times, the residual mixture on filter paper was dried in the oven at 50 °C for few hours, and the powder was calcined for 8 h in a furnace at 600 °C. After identification and characterization, using XRD, BET, and SEM, the results approved the formation of a new nanostructure in synthesized catalysts, which were suitable to be used in biodiesel production from waste oils with high free fatty acids content. The results of this study indicate that the catalysts production process is not complicated, and methyl ester production rates in all biodiesel samples were more than 97% (97.1–98.8%). [ABSTRACT FROM AUTHOR]

Seasonal haze episodes and the associated inimical health impacts have become a regular crisis among the ASEAN countries. Even though many emerging experimental and epidemiological studies have documented the plausible health effects of the predominating toxic pollutants of haze, the consistency among the reported findings by these studies is poorly understood. By addressing such gap, this review aimed to critically highlight the evidence of physical and psychological health impacts of haze from the available literature in ASEAN countries. Systematic literature survey from six electronic databases across the environmental and medical disciplines was performed, and 20 peer-reviewed studies out of 384 retrieved articles were selected. The evidence pertaining to the health impacts of haze based on field survey, laboratory tests, modelling and time-series analysis were extracted for expert judgement. In specific, no generalization can be made on the reported physical symptoms as no specific symptoms recorded in all the reviewed studies except for throat discomfort. Consistent evidence was found for the increase in respiratory morbidity, especially for asthma, whilst the children and the elderly are deemed to be the vulnerable groups of the haze-induced respiratory ailments. A consensual conclusion on the association between the cardiovascular morbidity and haze is unfeasible as the available studies are scanty and geographically limited albeit of some reported increased cases. A number of modelling and simulation studies demonstrated elevating respiratory mortality rates due to seasonal haze exposures over the years. Besides, evidence on cancer risk is inconsistent where industrial and vehicular emissions are also expected to play more notable roles than mere haze exposure. There are insufficient regional studies to examine the association between the mental health and haze. Limited toxicological studies in ASEAN countries often impede a comprehensive understanding of the biological mechanism of haze-induced toxic pollutants on human physiology. Therefore, the lack of consistent evidence among the reported haze-induced health effects as highlighted in this review calls for more intensive longitudinal and toxicological studies with greater statistical power to disseminate more reliable and congruent findings to empower the institutional health planning among the ASEAN countries. [ABSTRACT FROM AUTHOR]

The aims of this study were to explore the differences in (1) the perception of severity towards ZIKV infection and dengue fever, and (2) mosquito control practices before and after the ZIKV outbreak were declared a Public Health Emergency of International Concern (PHEIC). Data were collected between Feb to May 2016 using a computer-assisted telephone interviewing system. The median scale score for perceived severity of ZIKV was 3 (interquartile range [IQR] 1-5) versus 4 (IQR 3-5) for dengue (P < 0.001). The scores for mosquito control practices before and after ZIKV was declared a PHEIC were similar, at 4 (IQR 3-5). Multivariate analysis revealed that participants with a higher score for perception of severity of ZIKV were more likely to report greater mosquito control practices after the declaration of the PHEIC (OR 1.822 [95% CI 1.107-2.998]). The emerging ZIKV pandemic requires concerted efforts to enhance mosquito control practices among the Malaysian public. Efforts to improve public mosquito control practices should focus on enhancing the perception of the severity of ZIKV. [ABSTRACT FROM AUTHOR]

The rapidly increasing uptake of e-cigarettes in Malaysia as of late demands a study to identify factors leading to its increased popularity and user intentions to quit smoking e-cigarettes. A convenience sample of e-cigarette smokers visiting e-cigarette retail shops in Selangor and Kuala Lumpur was recruited. The majority of e-cigarette smokers were youth in colleges or universities (39 %), and young professionals and managers (36 %). The main reasons for using e-cigarettes were to help the user quit tobacco cigarettes (88 %), the perception that e-cigarettes are not as intrusive as tobacco cigarettes (85 %) and can be used in public areas (70 %), the perception that e-cigarettes are healthier than tobacco cigarettes (85 %), and its relatively lower cost compared to tobacco cigarettes (65 %). A total of 65.3 % of respondents expressed intentions to quit e-cigarettes. In a multivariate analysis, the respondents who earned monthly income of RM1000 or less were significantly more likely to intend to quit smoking e-cigarettes [OR 1.551; 95 % CI 1.022-2.355; p = 0.015] compared to the respondents who earned a monthly income of more than RM2000. The respondents who disagreed with the statement 'Smoking e-cigs is relatively cheaper compared to tobacco cigarettes' were significantly more likely to intend to quit smoking e-cigarettes [OR 1.548; 95 % CI 1.045-2.293; p = 0.027] compared to respondents who did not agree. e-cigarette preventive interventions should target areas related to the identified main reasons for using e-cigarettes, namely as an aid for quitting tobacco cigarettes, the perception that e-cigarettes are not as intrusive as tobacco cigarettes and can be used in public areas, the idea that e-cigarettes are healthier than tobacco cigarettes, and its relatively lower cost compared to tobacco cigarettes. [ABSTRACT FROM AUTHOR]