Introduction: Consumers are advised to read the nutrition labeling when purchasing packaged food. To what extent consumers read nutrition labeling and understand what they read is not well established among Malaysian older persons. Methods: Data from the National Health and Morbidity Survey III (NHMS III) undertaken in 2006 was analysed to determine the use and understanding of nutrition labeling and its associated factors among free living elderly men and women aged ~60 years. Descriptive analysis and binary Logistic Regression were used to analyse the data. Results: A total of 4,898 respondents provided self-reported information on their use and understanding of nutrition labeling when they bought or received food. Use of nutrition labeling was higher among elderly men [61.9% (95% CI: 59.6-64.1)] than for women [36.6% (95% CI: 34.5-38.8)]. Nutrition labeling use was significantly associated with age, formal education, higher household income levels and marital status among both elderly men and women. Understanding of nutrition labeling among elderly men and women was 91.8% (95% CI: 90.1-93.2) and 89.7% (95% CI: 87.4-91.7) respectively and was significantly associated with formal education for both elderly men and women. Conclusion: Overall, the reading of nutrition labeling among Malaysian elderly is moderate. Elderly men and women with formal education were more likely to understand nutrition labeling. The importance of reading nutrition labels should be inculcated in consumers including older persons so that they choose foods that are nutritious and safe.
Study name: National Health and Morbidity Survey (NHMS-2006)
Introduction: This cluster randomised controlled study design aimed to evaluate the effectiveness of implementing nutrition education intervention (NEI) that targeted at incremental reduction of body weight and increased physical activity level among university students. Methods: Body weight and physical activity level were assessed before and after intervention. A total of 417 university students from four public universities in Terengganu participated in the study. They were randomly selected and assigned into two arms, that is, intervention group (IG) or control group (CG) according to their cluster. The IG received 10 weeks intervention focused on NEI promotion using three modes which were conventional lecture, three brochures as take-home messages and text messages for intervention reinforcement while CG did not receive any intervention. Analysis of covariance (ANCOV A) and adjusted effect size were used to determine differences in body weight and physical activity levels between groups and time. Results: No significant changes in body weight were observed among both groups. The average weight and body mass index (BMI) were slightly reduced in IG compared to CG after the 10-week intervention (p>0.05). Nevertheless, physical activity level improved significantly among IG participants compared to CG with increased metabolic equivalent (MET) min/week spent for walking, moderate and vigorous activities and significantly decreased sitting time. The largest adjusted effect size was shown in total physical activity (0.75). Conclusion: The multimodal NEI had a positive influence on physical activity outcomes among university students. NEI should be continuously implemented in this particular population group.
MeSH terms: Body Weight; Food Habits; Health Education; Humans; Nutritional Status; Pamphlets; Students; Universities; Body Mass Index; Walking; Control Groups; Population Groups; Metabolic Equivalent; Text Messaging
Introduction: There is a lack of information on bone health status of premenopausal women in Malaysia. This study investigated the bone health status of premenopausal women and its associations with anthropometric, dietary and physical activity. Methods: Bone mineral density (BMD) was measured using dual X-ray absorptiometry (DEXA) at the lumbar spine, femoral neck, total hip and total body. Serum osteocalcin, parathyroid hormone (PTH), beta-crosslaps were also determined. Results: A total of 73 Chinese premenopausal women were recruited in the study with a mean age of 39.3 ± 5.0 years. Average BMI, body fat percentage and lean body mass were 22.2 ± 3.4 kg/m2, 33.9 ± 4.6% and 34.5 ± 4.4 kg, respectively. Mean BMD at the spine, total hip, femoral neck, and total body were 1.025 ± 0.118 g/cm2, 0.876 ± 0.109 g/cm2, 0.739 ± 0.110 g/cm2, and 1.061 ± 0.755 g/cm2, respectively. Their serum beta-crosslaps and PTH were within normal range, but serum osteocalcin (8.5 ± 4.2 ng/ ml) was low. On average, calorie intake (1506 ± 427 kcal/ day) was below the Malaysian Recommended Nutrient Intake (RNI) while their calcium intake achieved only 67% of RNI. Their mean metabolic equivalent score (MET) was 771.4 ± 926.1 min/week. Body weight and related indices (BMI, lean mass, fat mass) were significantly positively correlated with BMD at all skeletal sites. Conclusion: The study revealed that Chinese premenopausal women in the Klang Valley have low calcium intake and low level of physical activity.
MeSH terms: Adipose Tissue; Body Composition; Body Weight; Calcium; Female; Femur Neck; Health Status; Humans; Lumbar Vertebrae; Malaysia; Motor Activity; Parathyroid Hormone; Reference Values; Absorptiometry, Photon; Bone Density; Osteocalcin; Body Mass Index; Metabolic Equivalent
Introduction: Malnutrition is a serious unresolved nutritional problem amongst dialysis patients associated with increased mortality and morbidity and prevalence differs according to dialysis modalities. This study compared proteinenergy malnutrition (PEM) prevalence in haemodialysis (HD) and continuous ambulatory peritoneal dialysis (CAPD) patients. Methods: A total of 155 HD and 90 CAPD patients were enrolled. PEM prevalence was determined using body mass index (BMI), serum albumin, Dialysis Malnutrition Score (DMS) and dietary intake. Results: CAPD patients had significantly higher BMI (24.1 ± 4.8 kg/m2 vs. 22.7 ± 4.8 kg/m2; p=0.024) and mid-arm muscle area (32.1±12.4 cm2 vs. 29.5 ± 15.9 cm2; p=0.044) than HD patients. They also had significantly lower serum albumin (31 ± 5 g/L vs. 35 ± 6 g/L; p
Introduction: Tocotrienol exerts neuroprotective effects resulting in an improved circulating oxidative status. However, accumulation of tocotrienol due to longterm intake may exert pro-oxidant effects. Thus the effects of short- and longterm supplementation of vitamin E tocotrienol rich fraction (TRF) on the parameters of oxidative status in rat brains were determined. Methods: Wistar rats aged 3 months were supplemented with TRF for 3 or 8 months. Control groups received equivolume of distilled water. Rats were sacrificed and brains
harvested, weighed and homogenised. Supernatants were analysed for catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) activities, vitamin E and protein carbonyl. Results: A significant decline in the level of total vitamin E and its isomers with increasing age were found. TRF supplementation increased the level of total vitamin E with alpha-tocotrienol (ATT) being the major isomer raised. Glutathione peroxidase activity was also
significantly increased in the long-term supplemented group compared to the short-term supplemented and control groups. The results also showed significantly higher superoxide dismutase activity (p
Introduction: Cancer chemopreventive agents from natural sources have been actively investigated over the years to seek prevention against cancer. In this study, cocoa polyphenols extract (CPE) was examined to explore its antioxidant and cytotoxicity activities. Methods: CPE was analysed for total phenolic content (TPC) and antioxidant activity (DPPH radical scavenging activity and FRAP ferric-reducing antioxidant power assays). In vitro cytotoxicity effect of CPE
against HepG2, HT-29, HeLa, MCF-7, MDA-MB-231 and WRL-68 cell lines after 48 h exposure was measured by MTT assay. Results: The study showed that CPE had higher total phenolic content (13560.0±420.1 mg GAE/100g dry weight of sample) than vitamin E (p
Background: Although body fat percentage (BFP) is a widely accepted indicator of total body fat, it has not been extensively used in studies conducted among the Orang Asli in Peninsular Malaysia. Objective: This study was undertaken to determine the BFP distribution in a group of Orang Asli adults living in Cameron Highlands, Malaysia. Methods: Kampung Sungai Ruil, one of the Orang Asli settlements in Cameron Highlands, was conveniently selected for this crosssectional study. A total of 138 respondents aged 18 years and above were assessed. Skinfold thickness was measured using the Slim Guide skinfold caliper to calculate BFP. Waist circumference, BMI, blood pressure and random plasma glucose were also measured. Results: The mean BFP of the females (29.7%) was higher than the males (18.9%) and the respondents with abdominal obesity (36.2%) had higher mean BFP compared to those with normal waist circumference (23.7%) Those in the age group of 18-28 years old (22.1%) had lower BFP than
respondents in the age groups 29-39 years old (27.3%) and 40-50 years old (29.1%) (p=
MeSH terms: Adipose Tissue; Adult; Blood Glucose; Blood Pressure; Blood Pressure Determination; Cross-Sectional Studies; Female; Humans; Malaysia; Male; Surveys and Questionnaires; Skinfold Thickness; Body Mass Index; Population Groups; Asian Continental Ancestry Group; Body Fat Distribution; Waist Circumference; Obesity, Abdominal
Introduction: The increasing prevalence of adiposity is associated with the development of type 2 diabetes mellitus (T2DM). The two most popular methods to measure adiposity are body mass index (BMI) and waist-hip-ratio (WHR), which measure the overall and abdominal adiposity, respectively. The aim of this study was to determine whether BMI or WHR was more strongly associated with macronutrient intakes and lipid profiles in T2DM patients. Methods: In this cross-sectional study, a total of 210 T2DM patients, mean age of 56.73(SD 10.23) years, were recruited from Penang. Information on socio-demographic, body measurements (height, weight, waist circumference and hip circumference)and macronutrient intakes (three 24-hour dietary recalls) were recorded. Routine laboratory tests (fasting blood glucose, HbA1c, LDL, HDL, triglyceride and total cholesterol) were performed according to standard procedure. Results:Among the respondents, 84% had abdominal and 63% had overall adiposity respectively.There was a significant correlation between WHR and the total calorie(r=0.27; p
MeSH terms: Blood Glucose; Body Weight; Cholesterol; Cross-Sectional Studies; Diabetes Mellitus, Type 2; Fasting; Humans; Lipids; Obesity; Surveys and Questionnaires; Triglycerides; Body Mass Index; Prevalence; Waist-Hip Ratio; Adiposity; Waist Circumference; Obesity, Abdominal
Introduction: Child malnutrition continues to be a major public health problem in developing countries. This study aims to determine the current nutritional status of Malaysian school children using the anthropometric indicators of weight for age (WAZ), height for age (HAZ), and body mass index for age (BAZ). Methods: A nationwide school-based survey was undertaken in all Malaysian
states and territories, which included 18,078 children aged 8-10 years attending 445 primary schools. The software WHO AnthroPlus was used to calculate zscores for the nutritional status (WAZ, HAZ and BAZ) of the target population relative to the World Health Organization (WHO) 2007 reference. Results: The national prevalence of underweight among school children was 13.6% and in
rural areas, this rate was nearly double that of urban areas. The national prevalence rate for stunting was 10.9%, double among rural school children compared to their urban counterparts. As for thinness, the national prevalence was 6.5%. Using the WAZ indicator, we found that the national prevalence of overweight children was 7.6%. Additionally, we found that urban areas showed a higher
prevalence of overweight children (8.8%) than rural areas (5.9%). Conclusion: The findings of this study indicate that Malaysian school children face the burden of malnutrition, suffering from both undernourishment and overweight. Malaysia must make a concerted effort to overcome the problems of malnutrition among children.
MeSH terms: Anthropometry; Body Weight; Child; Developing Countries; Growth Disorders; Health Services Needs and Demand; Humans; Malaysia; Nutritional Status; Public Health; Surveys and Questionnaires; Software; Thinness; Child Nutrition Disorders; Body Mass Index; Prevalence; Malnutrition; Overweight
Introduction: The Infant and Early Childhood Nutrition Task Force, International Life Sciences Institute Southeast Asia (ILSI SEA) Region, organised the 1st and 2nd Expert Consultation and Planning Meeting on Infant and Early Childhood Nutrition in 2009 and 2011, respectively. The goal of the consultations was “to generate and promote relevant science-based information that will help improve nutritional status, growth and development of infants and young children in Southeast Asia.” Methods: An Expert Panel Core Group was created whose role is to provide advice and recommendations through a review of current scientific knowledge regarding issues related to early childhood growth and nutrition. The Panel is composed of experts representing 7 countries (China, Indonesia, Malaysia, Philippines, Singapore, Thailand, and Vietnam). In July 2012, the Panel convened the 3rd Expert Consultation and Planning Meeting on Infant and Young Child Nutrition in Singapore. This report presents the highlights of the meeting and recommendations made by the Panel on ways to improve infant and young child nutrition in Southeast Asia. Results and Conclusion: The effective use of WHO indicators for assessing infant and young child feeding practices, mitigating the effects of maternal employment on breastfeeding, using behaviour change communication, updating the education of health personnel, and improving maternal health were considered important actions to be taken. Since current feeding practices in Southeast Asia fall short of WHO recommendations, studies are needed to develop strategies which take into consideration the diverse cultural settings that characterise the region.
MeSH terms: Maternal Health; Asia, Southeastern; Biological Science Disciplines; Breast Feeding; Child; Child Nutritional Physiological Phenomena; Child, Preschool; China; Employment; Feeding Behavior; Female; Goals; Health Personnel; Humans; Indonesia; Infant; Malaysia; Nutritional Status; Philippines; Referral and Consultation; Singapore; Thailand; Vietnam; Growth and Development
Introduction: A prebiotic such as inulin is a well-known functional plant food ingredient. It is capable of stimulating growth of beneficial bifidobacteria in the intestine thus protecting against intestinal infections, preventing constipation, increasing mineral absorption, reducing the incidence of colon cancer, and producing B vitamins. Inulin added to food therefore has to be stable during food processing especially against heat treatment, low pH and Maillard reaction. Methods: Newly developed dark chocolate, DC-1, containing inulin (replacing sugar component) as an added value, was stored at 18oC, 60% relative humidity and 25oC, 80% relative humidity (RH) to determine shelf life stability compared to control dark chocolate, DC-0 (with high content of sugar). Sensory evaluation (quantitative descriptive analysis), water activity (aw), microbiological content and presence of inulin after storage of the prebiotic chocolate under both conditions were evaluated to determine shelf life. Results: The DC-1 chocolate had at least 12 months of shelf life at 18oC, 60% RH with better acceptance than DC-0; moreover, it did not experience microbiological and inulin content changes. At 25oC, 80% RH, the growth of Aspergillus sp. was observed on the surface of both DC-0 and DC-1 with aw >0.50 after a 2-month storage. Conclusion: Shelf life stability of DC-1 is almost similar to DC-0.
Introduction: The aims of this study were to determine the proximate composition, functional properties and antioxidant activity of pumpkin seeds and rind. Besides, the effects of dietary fibre in pumpkin seeds and rinds on bread qualities and properties were evaluated. Methods: Formulations for bread substituted with 0%, 5% and 10% pumpkin seed and rind, respectively were produced. Sensory evaluation of the prepared bread samples for such attributes as appearance, aroma, flavour, texture and overall acceptability was undertaken. The physical properties of the bread samples, including dough expansion, loaf volume, crumb colour and bread texture, were determined. Proximate analysis and determination of antioxidant activity of the bread samples were also conducted. Results: Crude fibre of the pumpkin seeds and pumpkin rinds was high at 31.48% and 14.83%, respectively. The total phenolic compound (TPC) and DPPH radical scavenging activity for the pumpkin rinds were 38.60 mg GAE/ 100 g dry weight and 69.38%, respectively, which were higher than those of pumpkin seeds. A 5% level of pumpkin rind bread gave the best overall acceptability and sensory attributes, followed by 5% pumpkin seed bread. Total dietary fibre, total phenolic compound and DPPH radical scavenging activity in breads substituted with 5% pumpkin seed and 5% pumpkin rind flour were higher than the values in control bread. Conclusion: Pumpkin seeds and rinds can be used as dietary fibre sources in bakery.
The importance of numerical analysis in investigation of piled embankment over soft soil has been developed since 1990. Several investigators have extended the numerical analysis to model ground improvement using soil-column to support embankment or structures. This paper presents a numerical analysis of the Pulverized Fuel Ash (PFA) column-treated peat and compared with field static-loading test results. Back analysis was performed to determine the material parameters and soil stiffness surrounding soil & soil-column. Two geometrical models were used in this analysis: (a) block (Model A), and (b) column group (Model B). This situation was analyzed using commercially available finite element package PLAXIS 2D ver. 8.2. It is found that both models are reliable to simulate the field static-loading test for column-treated peat. Model B shows a higher stability to failure if compared to Model A.
Recently, there has been great interest on the applicability of Recycled Concrete Aggregate (RCA) as a new ecological construction material that can be sustainable in a gradually expanding construction industry. This paper reports the structural performance particularly on shear behaviour of high strength reinforced recycled concrete beams. Compressive cube strength of the tested beams ranged from 65-74 MPa at the age of 28-days. The experimental program compared conventional concrete mix with concrete mix having substitution of 25% recycled concrete aggregates of grade 25-30 MPa. In this study, three 150 mm x 200 mm x 1200 mm simply supported rectangular concrete beams in each mix were tested under a four-point bending static load with various shear span to effective depth ratios (a/d = 1.0, 1.5, 2.0). Subsequently, the shear behavior of the beams was investigated through studies of load-deflection responses, effect of a/d ratios and crack patterns. The test results reported that the substitution of 25% recycled concrete coarse aggregates barely affects the shear capacity of the high strength reinforced concrete beams with a/d of 1.5 onwards. Finally, experimental results were compared using existing design codes by ACI 318, Eurocode-2 and AS3600 which lie on the safe side.
MeSH terms: Construction Materials; Paper; Compressive Strength; Recycling; Construction Industry
The aim of this project is to produce electricity from citronella biomass using isolated microbes from wastewater as biocatalyst in a dual chamber microbial fuel cell (MFC). MFC is one such system that not only reduced biomass, which contains mostly waste products but can also liberate electricity from them. MFC system is well-established and using lignocellulosic biomass as fuel is one step to future energy generation. Trials of MFC experiments have been conducted but using citronella bagasse (CB) as fuel source. Furthermore, pre-treatment of the biomass was done using NaOH pre-treament and effluent treatment wastewater from a palm edible oil company as a source for microorganism. The end results indicate that bioelectricity production from CB is possible though very low yield in the present MFC.
MeSH terms: Bioelectric Energy Sources; Cellulose; Electricity; Waste Products; Biomass; Cymbopogon; Waste Water
An AC to DC voltage rectifier and its respective regulator were designed and integrated on a 0.25μm CMOS process. Its input impedance was measured along with the regulated DC output. Input impedance of a series of rectangular coil microstrip antenna on FR4 PCB with outer dimension of 78mm x 41mm was measured. The positive reactance of the antenna was matched at resonance with negative reactance of the integrated rectifier and regulator with addition of external capacitor. Relationship between incidental electromagnetic field in A/m at the coil microstrip antenna all the way to the rectified DC voltage at the output of the regulator is presented. In the context of wireless power transfer, this work focuses on the remote unit that absorbs electromagnetic field generated by another system and converts the energy into DC supply voltage for remote device
MeSH terms: Durable Medical Equipment; Electromagnetic Fields; Vibration; Electric Impedance
Link analysis algorithms for Web search engines determine the importance and relevance of Web pages. Among the link analysis algorithms, PageRank is the state of the art ranking mechanism that is used in Google search engine today. The PageRank algorithm is modeled as the behavior of a randomized Web surfer; this model can be seen as Markov chain to predict the behavior of a system that travels from one state to another state considering only the current condition. However, this model has the dangling node or hanging node problem because these nodes cannot be presented in a Markov chain model. This paper focuses on the application of Markov chain on PageRank algorithm and discussed a few methods to handle the dangling node problem. The Experiment is done running on WEBSPAM-UK2007 to show the rank results of the dangling nodes.
In the moving layer of particles with variable concentration, the shear estimation is not directly predictable and there is no existing clear mathematical or empirical formula to achieve this objective. This paper presents a developed approach to estimate the shear forces in a flow having suspended and moving layers of solid particles in liquid flow. The two-layer approach was taken whereby the flow consisting of one upper suspended layer of particles in the liquid, and the bottom layer was the moving bed of particles. In the present work, the method of finding the force acting on the pipe wall by the particles in the layer, termed as the ‘dry force’, was presented using a “pseudo hydrostatic pressure” method. To attain the equation for the dry force, a mathematical approach is taken with the assumptions that the flow is horizontal, two-phase pipe flow (solid in Newtonian liquid), incompressible and it is at steady-state. The analysis was conducted considering various particles densities, various concentrations in the suspended layer and different thicknesses of the moving bed. Changing the concentration in the suspended layer from 0.00001 up to 0.001 didn’t showed significant changes in the dry force evaluation. The dry friction force is increasing with increasing moving bed thickness. The developed mathematical model can be
applicable in solving for the shear force in horizontal solid liquid two-phase flows.
Recent rootkit-attack mitigation work neglected to address the integrity of the mitigation tool itself. Both detection and prevention arms of current rootkit-attack mitigation solutions can be given credit for the advancement of multiple methodologies for rootkit defense but if the defense system itself is compromised, how is the defense system to be trusted? Another deficiency not addressed is how platform integrity can be preserved without availability of current RIDS or RIPS solutions, which operate only upon the loading of the kernel i.e. without availability of a trusted boot environment. To address these deficiencies, we present our architecture for solving rootkit persistence – Rootkit Guard (RG). RG is a marriage between TrustedGRUB (providing trusted boot), IMA (Integrity Measurement Architecture) (serves as RIDS) and SELinux (serves as RIPS). TPM hardware is utilised to provide total integrity of our platform via storage of the aggregate of the clean snapshot of our platform OS kernel into TPM hardware registers (i.e. the PCR) – of which no software attacks have been demonstrated to date. RG solves rootkit persistence by leveraging on one vital but simple strategy: the mounting of rootkit defense via prevention of the execution of configuration binaries or build initialisation scripts. We adopted the technique of rootkit persistence prevention via thwarting the initialisation of a rootkit’s installation procedure; if the rootkit is successfully installed, proper deployment via thwarting of the rootkit’s
configuration is prevented. We had subjected the RG to 8 real world Linux 2.6 rootkits and the RG was successful in solving rootkit persistence in all 8 evaluated rootkits. In terms of performance, the RG introduced a maximum of 11% overhead and an average of 4% overhead, hence permitting deployment in production environments.
In this study a GIS model was developed and spatial analytical techniques performed to identify and select a suitable location for a waste transfer station in the sprawling suburban town of Petaling Jaya. The lack of a transfer station in urban centres of Malaysia has caused many problems and affects the efficiency of waste collection and disposal. With diminishing space for landfills and the increasing cost of solid waste management, the need for urban solid-waste recycling has become very important. However, finding a place for waste to be efficiently sorted before unwanted waste can be carried to disposal landfills has social and physical constraints. This study applies GIS techniques and analysis for site selection and identifies an acceptable area. In the model, environmental, physical and social constraints were taken into account, resulting in the selection of a potential area that is acceptable to the residents of the area because it is out of range of causing public nuisance and within minimum travelling distance for collection vehicles. The results show that the potential location for the transfer station should be in proximity of the industrial area of Petaling Jaya, allowing for the possible sale of recyclable materials to local industries. The location is also sited near a major highway to allow quick transportation of the rest of the unwanted waste to the landfill.