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Fulltext Eagle's syndrome

Subramaniam S, Abd Majid MD

Med J Malaysia, 2003 Mar;58(1):139-41.
PMID: 14556342

Eagle's syndrome is an uncommon condition resulting from an elongated styloid process, which causes cervico facial pain, tinnitus and otalgia. A 48-year-old female presented to the clinic with bilateral upper neck pain radiating to the ears with tinnitus for almost one-year duration. Examination of the oral cavity revealed atrophic tonsils and palpable bony projection deep in the tonsillar fossa. Plain lateral neck X-ray and CT scan confirmed the presence of bilateral elongated styloid processes, which were subsequently resected surgically through an oropharyngeal approach. The patient was asymptomatic at follow up at 2 years.
Analysis of tocotrienols in different sample matrixes by HPLC

Sundram K, Nor RM

Methods Mol Biol, 2002;186:221-32.
PMID: 12013770
Effect of agitation and aeration on bioconversion of domestic wastewater sludge in a batch fermenter

Alam MZ, Fakhru'l-Razi A

J Environ Sci Health A Tox Hazard Subst Environ Eng, 2002;37(6):1087-97.
PMID: 12090282

Effects of agitation and aeration rate on microbial treatment of domestic wastewater sludge were investigated in a batch fermenter using mixed culture of Penicillium corylophilum and Aspergillus niger. It was found that liquid state bioconversion (LSB) of wastewater sludge was highly influenced by the effects of agitation and aeration. The maximum production of sludge cake and reduction of organic substances in treated sludge were recorded at 150-200 rpm of agitation speed and 0.5 vvm of aeration rate after 72 h of treatment. No effective results were observed at higher rate of agitation (300 rpm) and aeration (1.5 vvm) as compared to optimum values. The results showed that the minimum level of air saturation (pO2) was adequate to maintain the bioconversion process.
Cephalometric analysis of Deutero-Malay Indonesians

Munandar S, Snow MD

Aust Dent J, 1995 Dec;40(6):381-8.
PMID: 8615744

A cephalometric study using Downs' analysis was undertaken with lateral cephalometric radiographs for a mixed sample of 50 child, adolescent and young adult Indonesians who presented with Angle Class I occlusions. Significant differences between this study group and the published results from comparative racial types were found for Downs' angle of convexity, Y-axis and incisor inclinations, indicating that Indonesians can be differentiated from other races with similar occlusions by using Downs' analysis.
Fulltext Manual handling process on concrete panel lifting using ergonomic approach

Hussein Md Zan, Shapie, Sinatu Sadiah, Rahim Ishak, Md Saifuddin Yusop, Seri Rahayu Kama

Journal of Occupational Safety and Health, 2019;16(2):31-39.
MyJurnal

Precast concrete panel is one of the Industrial Building System (IBS) components currently used in modern construction industry, especially, in a highly populated urban area in Malaysia, owing to its cost and time efficiency in a project completion. However, the constraints lie in Musculoskeletal Disorders (MSDs) when IBS workers manually lift the concrete panel repeatedly. The aim of this study is to analyze the recommended weight limit (RWL), lifting index (LI) and physiological experience among workers while lifting precast concrete panel with 3300mm x 600mm size and compressive strength of 40MPa. The methods involved include a survey through the Nordic questionnaires, interview sessions, NIOSH lifting index calculation, recommended work limit calculation, Rapid Upper Limb Assessment (RULA) and video recording. The results yielded the MSDs problem. The guidelines of recommended weight limit and lifting index are produced. They benefit workers and increase their awareness on the MSDs issues.
Fulltext Interaction effect of co-digestion sewage sludge and food waste for production of biogas

Hosen, Md Sabuj, Mariatul Fadzillah Mansor, Ainoor Mariana Mohd Ali, Alam, Md. Zahangir

Biological and Natural Resources Engineering Journal, 2020;3(1):37-47.
MyJurnal

Increasing population, urbanization and industrial activities have increased the amount of solid waste worldwide. Food waste (FW) and sewage sludge (SS) are some of the solid wastes. Co-digesting of both substrates may improve process stabilization to increase biogas production and overcome the nutrients imbalance. Thus, anaerobic co-digestion has been recognized as a technology that could provide a clean renewable energy source and help reducing the landfill problem. In this study, the interaction between FW and SS as co-substrates in anaerobic digestion was studied under mesophilic temperature 36C (± 0.5). The experiments were conducted using five batch reactors with different ratios of substrates. There are four different analyses used to identify the characteristics of FW and SS, which are pH, reducing sugar (RS), total solid (TS), and total carbohydrate (TC). Water displacement method was used to record biogas yield. The experimental results showed that the highest biogas yield was from the composition of 50:50 (FW: SS) with a biogas volume of 1150.14 mL, while the least was the composition of 0:100 (FW: SS) with 170.47 mL biogas produced. The results for substrate degradation showed that the composition of 100:0 (FW: SS) has the highest percentage degradation for reducing sugar with the percentage of 56%, while the minimum was 0:100 (FW: SS) with a percentage of 35%. Besides, for TC, the highest percentage of degradation was the composition 50:50 (FW: SS) with 84%, and the least was 0:100 (FW: SS) with 44%. This study proves that using FW and SS enhanced biogas production as well as reducing the current issues of waste disposal.
Fulltext Bending and bonding properties of sandwiched polymer concrete composites

Hamidah Mohd Saman, Azmi Ibrahim, Yakub Md. Taib, Mohd. Faizal Md. Ja’afa

Scientific Research Journal, 2006;3(2):13-29.
MyJurnal

It is foreseen that the properties of Polymer Concrete (PC) can be further
enhanced if the PC is bonded to or sandwiched between Glass Fibre Reinforced
Plastic (GFRP) laminates, later termed as PC-GFRP system. In the present
investigation, the performance of PC-GFRP was assessed in terms of its bending
strength and bonding strength between PC and GFRP. Panels of PC size 500
mm × 500 mm × 20 mm were prepared. The panels then were cut into specimens
of appropriate geometry and dimensions required for the tests. Four (4) different
resin contents and different percentages of aggregate of different particle size
distributions were employed in preparing the PC-GFRP specimens. A batch of
PC specimens was layered with a Glass Fibre Reinforced Plastic (GFRP)
laminate on one side (SSL) and the other batch PC specimens were sandwiched
with two GFRP laminates (DSL). The PC-GFRP specimens were tested their
bending strength under three-point load test and bonding strength between
PC as a core material and glued GFRP laminate(s). The results showed that an
increase in the resin content increases the bending strength of the PC regardless
of the aggregate grading. The results also revealed that the PC specimens with
well-graded aggregate recorded the highest bending strength, with coarser
grading resulted in further increase. The bending strength of the PC-GFRP
Fulltext Circularly Polarized Broadband Printed Antenna for Wireless Applications

Samsuzzaman M, Islam MT

Sensors (Basel), 2018 Dec 04;18(12).
PMID: 30518080 DOI: 10.3390/s18124261

A simple, compact sickle-shaped printed antenna with a slotted ground plane is designed and developed for broadband circularly polarized (CP) radiation. The sickle-shaped radiator with a tapered feed line and circular slotted square ground plane are utilized to realize the wideband CP radiation feature. With optimized dimensions of 0.29λ × 0.29λ × 0.012λ at 2.22 GHz frequency for the realized antenna parameters, the measured results display that the antenna has a 10 dB impedance bandwidth of 7.70 GHz (126.85%; 2.22⁻9.92 GHz) and a 3 dB axial ratio (AR) bandwidth of 2.64 GHz (73.33%; 2.28⁻4.92 GHz). The measurement agrees well with simulation, which proves an excellent circularly polarized property. For verification, the mechanism of band improvement and circular polarization are presented, and the parametric study is carried out. Since, the proposed antenna is a simple design structure with broad impedance and AR bandwidth, which is a desirable feature as a candidate for various wireless communication systems. Because of the easy printed structure and scaling the dimension with broadband CP characteristics, the realized antenna does incorporate in a number of CP wireless communication applications.
Assessment of pollution and improvement measure of water quality parameters using scenarios modeling for sungai Selangor basin

Md. Sadek Uddin Chowdhury, Faridah Othman, Wan Zurina Wan Jaafar, Nuzaima Che Mood, Md. Ibrahim Adham

Sains Malaysiana, 2018;47:457-469.

Sungai Selangor is very important from the viewpoint of water supply and multipurpose water use in Malaysia. The
water quality of this river is degrading due to point and non-point sources of pollution. This study, focus on the water
quality assessment and simulation the effect of the pollution sources from urbanization to the Sungai Selangor basin.
Water quality Index (WQI) is used to define the status of river water quality and the QUAL2K was used as a simulation
model. Water quality parameters DO, BOD and NH3
-N have been chosen for modeling. In addition, five different model
scenarios were simulated to observe the impacts of pollution sources on the Sungai Selangor water quality. WQI results
showed that most of the stations in this river basin recorded water inferior to Class III. The water quality model presented
different scenarios for changes of Sungai Selangor water quality. Simulation results for different scenarios showed
that reduced levels of BOD and NH3
-N at 51.10% and 66.18%, respectively, can be obtained if Scenario-5 is employed.
The river water quality issue in the Rawang sub- basin within the study area is considered crucial to create significant
improvement within the sub basin and in the downstream area of Sungai Selangor basin.
Fulltext Very short answer questions: a viable alternative to multiple choice questions

Puthiaparampil T, Rahman MM

BMC Med Educ, 2020 May 06;20(1):141.
PMID: 32375739 DOI: 10.1186/s12909-020-02057-w

BACKGROUND: Multiple choice questions, used in medical school assessments for decades, have many drawbacks such as hard to construct, allow guessing, encourage test-wiseness, promote rote learning, provide no opportunity for examinees to express ideas, and do not provide information about strengths and weakness of candidates. Directly asked, directly answered questions like Very Short Answer Questions (VSAQ) are considered a better alternative with several advantages.
OBJECTIVES: This study aims to compare student performance in MCQ and VSAQ and obtain feedback. from the stakeholders.
METHODS: Conduct multiple true-false, one best answer, and VSAQ tests in two batches of medical students, compare their scores and psychometric indices of the tests and seek opinion from students and academics regarding these assessment methods.
RESULTS: Multiple true-false and best answer test scores showed skewed results and low psychometric performance compared to better psychometrics and more balanced student performance in VSAQ tests. The stakeholders' opinions were significantly in favour of VSAQ.
CONCLUSION AND RECOMMENDATION: This study concludes that VSAQ is a viable alternative to multiple-choice question tests, and it is widely accepted by medical students and academics in the medical faculty.
Diazinon-induced oxidative stress and renal dysfunction in rats

Shah MD, Iqbal M

Food Chem Toxicol, 2010 Dec;48(12):3345-53.
PMID: 20828599 DOI: 10.1016/j.fct.2010.09.003

Diazinon (O,O-diethyl-O-[2-isopropyl-6-methyl-4-pyrimidinyl] phosphoro thioate), an organo-phosphate insecticide, has been used worldwide in agriculture and domestic for several years, which has led to a variety of negative effects in non target species including humans. However, its nephrotoxic effects and mechanism of action has not been fully elucidated so far. Therefore, the present study was aimed at evaluating the nephrotoxic effects of diazinon and its mechanism of action with special reference to its possible ROS generating potential in rats. Treatment of rats with diazinon significantly enhances renal lipid peroxidation which is accompanied by a decrease in the activities of renal antioxidant enzymes (e.g. catalase, glutathione peroxidise, glutathione reductase, glucose-6-phosphate dehydrogenase, glutathione S-transferase) and depletion in the level of glutathione reduced. In contrast, the activities of renal γ-glutamyl transpeptidase and quinone reductase were increased. Parallel to these changes, diazinon treatment enhances renal damage as evidenced by sharp increase in blood urea nitrogen and serum creatinine. Additionally, the impairment of renal function corresponds histopathologically. In summary, our results indicate that diazinon treatment eventuates in decreased renal glutathione reduced, a fall in the activities of antioxidant enzymes including the enzymes involved in glutathione metabolism and excessive production of oxidants with concomitant renal damage, all of which are involved in the cascade of events leading to diazinon-mediated renal oxidative stress and toxicity. We concluded that in diazinon exposure, depletion of antioxidant enzymes is accompanied by induction of oxidative stress that might be beneficial in monitoring diazinon toxicity.
Site-saturation mutagenesis of mutant L-asparaginase II signal peptide hydrophobic region for improved excretion of cyclodextrin glucanotransferase

Ismail A, Illias RM

J Ind Microbiol Biotechnol, 2017 Dec;44(12):1627-1641.
PMID: 28921081 DOI: 10.1007/s10295-017-1980-6

The excretion of cyclodextrin glucanotransferase (CGTase) into the culture medium offers significant advantages over cytoplasmic expression. However, the limitation of Escherichia coli is its inability to excrete high amount of CGTase outside the cells. In this study, modification of the hydrophobic region of the N1R3 signal peptide using site-saturation mutagenesis improved the excretion of CGTase. Signal peptide mutants designated M9F, V10L and A15Y enhanced the excretion of CGTase three-fold and demonstrated two-fold higher secretion rate than the wild type. However, high secretion rate of these mutants was non-productive for recombinant protein production because it caused up to a seven-fold increase in cell death compared to the wild type. Our results indicated that the excretion of CGTase is highly dependent on hydrophobicity, secondary conformation and the type and position of amino acids at the region boundary and core segment of the h-region.
Prevalence of emotional disorders among adult patients attending a rural primary care clinic

Fuziah P, Sherina MS, Nor Afiah MZ, Jefferelli SB

Family Physician, 2005;13:16-19.

Emotional disorders are common human emotional states that include anxiety, depression, social impairment and somatic symptoms. Emotional disorders are common in the community and therefore an important issue in primary care practice. The objective of this study was to determine the prevalence of emotional disorders among adults at a rural primary care clinic in Malaysia and to identify the associated factors. A cross-sectional study was conducted at Klinik Kesihatan Sungai Mati, Muar, Johor from 1st November to 31st December 1998. A self-administered 30-item General Health Questionnaire (GHQ-30) was used to screen for emotional disorders. Out of 414 patients seen during the study period, 368 fulfilled the selection criteria and agreed to participate in the study (response rate 88.9%). The prevalence of emotional disorders among the adult patients in this study was 15.2%. Factors such as age, race, gender, marital status, education level and employment were analyzed for association with emotional disorders. However, none of these factors were found to be significantly associated with emotional disorders in this study.
Fulltext Validation of inventory responses-oMR (IR-oMR) towards the self-assesment instrument of outdoor competency (OCL-oMR) among the co-curriculum center coaches in Malaysia

Omar Firdaus Mohd Said, Md Amin Md Taff, Ahmad Hashim, Jaffry Zakaria

Jurnal Sains Sukan & Pendidikan Jasmani, 2020;9(2):47-55.
MyJurnal

This study is fundamental in looking to validate the agreement of Self-Assesment Instrument of Outdoor Competency (OCL-oMR) among the Co-curriculum Center Coaches in Malaysia. The instrument are newly developed by the researcher . The Inventory Responses –oMR (IR-oMR) are purposely to evaluate and determine the goodness of self-assesement instrument of outdoor competency (OCL-oMR) among co-curriculum center coaches in Malaysia. By using the correlation & percentage, the analysis were used. N=10 of head coaches of co-curriculum Center were selected to be a sampels. These data is a secondary data that researcher used in the main research. But as a secondary data, its really important to researcher to identify and justify the newly instrument of self assesment of outdoor competency (OCL-oMR). Findings shown contents validity r=.82 were recorded and the language validity were shown r=.83. Meanwhile, anothers supporting data were used percentage of agreement of Inventory Responses –Omr (IR-oMR) toward the Self-Assesment Instrument of Outdoor Competency (OCL-oMR) among the Co-curriculum Center Coaches in Malaysia. Overall, from these findings, researcher found that’s the Inventory Responses – oMR (IR-oMR) shown that the Self-Assesment Instrument of Outdoor Competency (OCL-oMR) among the Co-curriculum Center Coaches in Malaysia are valid instrument to measure the competency level of outdoor education coaches in co-curriculum center in Malaysia and the Inventory Responses – oMR (IR-oMR) are significantly toward the outdoor competency (OCL-oMR).
The phytochemical analysis and pharmacological potentials of husk and straw as paddy waste products

Murtey MD, Seeni A

J Sci Food Agric, 2020 Sep;100(12):4347-4352.
PMID: 32248531 DOI: 10.1002/jsfa.10406

Rice serves as a staple food for one-half of the global population. However, rice production, particularly the rice milling process, results in a substantial amount of paddy waste products (e.g. bran, husk and straw) annually. Because the potentials of bran have been extensively explored in prior studies, the present review focuses exclusively on the phytochemical analysis and pharmacological potentials of husk and straw. This comprehensive review establishes a solid foundation for promoting husk and straw as medicinal substances given their promising pharmacological potentials as bioactive compound sources with therapeutic functions. © 2020 Society of Chemical Industry.
Fulltext Prevalence of Depression among Transgender Male to Female in Kuantan, Pahang.

Md Hadis ND, Draman S, Samsudin S, Yusuf MZ, Md Rosli AN, Abd Rahman NS

IIUM Medical Journal Malaysia, 2019;18(102):31-0.
MyJurnal

Transgender is an umbrella term for persons whose gender identity, gender expression or behaviour does not conform to that typically associated with the sex to which they were assigned at birth. Transgender individuals are particularly vulnerable to mental health concerns and psychological distress. Objective: This study aims to assess the prevalence of depression and associated risk factors among transgender male to female in Kuantan, Pahang. Material and method: This was a cross-sectional study conducted among 96 transgender male to female in Kuantan, Pahang. A convenient type of sampling was used as a mean of data collection. A selfadministered validated Malay version of Beck Depression Inventory(BDI) was used to screen for depression. Result: Majority of the respondent were Malay (82.3%), Muslim (99%), unmarried (93.8%) and monthly income <RM2300 (91.7%). Prevalence of depression among transgender male to female in Kuantan is 37.5%. There is no significant association between sociodemographic data of participants and depression. Conclusion: This study shows that almost one third of transgender male to female are at risk of depression. Therefore, screening for mental health assessment is recommended so that important measures can be taken to prevent depression among this high-risk group.
Enhanced settleability and dewaterability of fungal treated domestic wastewater sludge by liquid state bioconversion process

Alam MZ, Fakhru'l-Razi A

Water Res, 2003 Mar;37(5):1118-24.
PMID: 12553987

A study was conducted to evaluate the settleability and dewaterability of fungal treated and untreated sludge using liquid state bioconversion process. The fungal mixed culture of Aspergillus niger and Penicillium corylophilum was used for fungal pretreatment of wastewater sludge. The fungal strains immobilized/entrapped on sludge particles with the formation of pellets and enhanced the separation process. The results presented in this study showed that the sludge particles (pellets) size of 2-5mm of diameter were formed with the microbial treatment of sludge after 2 days of fermentation that contained maximum 33.7% of total particles with 3-3.5mm of diameter. The settling rate (measured as total suspended solids (TSS) concentration, 130 mg/l) was faster in treated sludge than untreated sludge (TSS concentration, 440 mg/l) after 1 min of settling time. In 1 min of settling operation, 86.45% of TSS was settled in treated sludge while 4.35% of TSS settled in raw sludge. Lower turbidity was observed in treated sludge as compared to untreated sludge. The results to specific resistance to filtration (SRF) revealed that the fungal inoculum had significant potentiality to reduce SRF by 99.8% and 98.7% for 1% w/w and 4% w/w of TSS sludge, respectively. The optimum fermentation period recorded was 3 days for 1% w/w sludge and 6 days for 4% w/w sludge, respectively, for dewaterability test.
Fulltext Prevalence and determinants of smoking behaviour among the secondary school teachers in Bangladesh

Md Mizanur Rahman, Md Jahirul Karim, Sk Akhtar Ahmad, Mohd. Raili Suhaili, Sharifah Norashikin Wan Ahmad

Int J Public Health Res, 2011;1(2):25-32.
MyJurnal

Background Despite country’s tobacco control law, cigarette smoking by the young people and the magnitude of nicotine dependence among the school personnel is alarming.
Objective To determine the prevalence of smoking and to examine the determinants of smoking behaviour among the secondary school teachers in Bangladesh.
Methods A two-stage cluster sampling was used with a selection of schools on Probability Proportional to Enrolment (PPE) size followed by stratified random sampling of government and private schools and then all the teachers present on the day of the survey were selected for the study. The 66-item questionnaire included smoking behaviour, knowledge, attitude, second-hand smoking, tobacco free school policy, cessation, media advertisement and curriculum related topics. Seven additional questions were included to assess the socio-demographic characteristics of the teachers. Data analysis was performed using SPSS 17 software. A total of 60 schools were selected with school response rate of 98.3%. An anonymous self-administered questionnaire was filled in by all teachers present at the day of the survey. The sample consisted of 559 teachers with response rate of 99.5%.
Results The prevalence of smoking was 17% (95% CI: 14%, 20.4). About half of the teachers (48.4%) smoke daily followed by 25.3% smoke 1-2 days in last 30 days. The mean duration smoking of was 13.7(95% CI: 11.6, 15.9) years. Logistic regression analysis revealed that male teachers smoke 37.46(95% CI: 5.078, 276.432) times higher than their female counterparts. The graduate teachers were 2.179(95% 1.209, 3.926) times more likely to be smoke than master’s degree holder teachers. Smoking by friends appeared to be the strongest predictor for teachers smoking behaviour (OR 4.789, 95% CI: 1.757, 13.050). However, no statistically significant association was found between type of school, second-hand smoking and curriculum related factors and smoking behaviour of the teachers (p>0.05).
Conclusions Prevalence of smoking among the teachers is high in Bangladesh. Effective smoking prevention program should take into account within the dominant of socio-environmental influence to reduce smoking behaviour. The school curriculum items had less impact in preventing smoking behaviour.
Malaysian-based science process skills inventory: development, validation and utilisation

Ong, Eng Tek, Wong, Yew Tuang, Sopia Md Yassin, Sadiah Baharom, Asmayati Yahya, Zahid Md Said

CREAM : Current Research in Malaysia (Penyelidikan Terkini di Malaysia), 2012;1(1):125-149.
MyJurnal

This study aimed to develop and validate an inventory that measures the whole range of basic and integrated science process skills as stipulated in the Malaysian science curricula and that is suitable for Malaysian lower secondary school students. The validated inventory was subsequently utilised to determine the differential acquisition of science process skills by gender, location, and ethnicity. In the instrument development phase which involves item generation and field testing, a reliable 60-item Malaysian-Based Basic and Integrated Science Process Skills Inventory (MB-BISPSI) that has a KR-20 reliability of 0.88, difficulty indices of items that range between 0.25-0.75 and discrimination indices which are above 0.4 was produced. In the main causal-comparative study using a sample of 1021 Form 2 students (548 girls and 473 boys) from seven (four rural and three interior) out of the eight secondary schools in Kapit Division, Sarawak, the findings indicate that the students achieved a mastery level which fell short of the two-third benchmark (e.g., 66.7%) for the overall science process skills, basic and integrated science process skills, and also for each of the 12 science process skills. Additionally, it was found that, while female students generally achieved a markedly higher mean percentage score in the overall Science Process Skills than did the male students, such phenomenon was only observed amongst the Kenyah ethnicity. There were no significant differences in science process skills acquisition between rural and interior students. Implications for a more thoughtful inculcation of science process skills are proffered alongside recommendations for future research using a more nationally representative sample to examine the validity of such generalisation.
Fulltext Electricity generation from citronella bagasse (CB) using dual chamber microbial fuel cell

Nik Azmi Nik Mahmood, Mohd Nazlee Faisal Md Ghazali, Kamarul’Asri Ibrahim, Nur Muhammad ElQarni Md Norodin

Pertanika Journal of Science & Technology, 2013;21(2):581-588.
MyJurnal

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.

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