Faktor-Faktor yang mempengaruhi persepsi ibu terhadap kanak-kanak dengan kecacatan klef

Introduction A study was conducted to determine the level of mothers' perception on children with cleft deformity and its associated factors Methods This was a cross sectional study involving 110 mothers with children attending the Plastic And Reconstructive Surgery Clinic. Data was gathered from a face to face interview based on a questionnaire that assesses the level of perception and its associated factors. The level of perception was evaluated from a scoring method and divided into four domains namely psychosocial, care management, treatment and education. Results The level of perception was high in all four domains ranged from 62% for treatment and 80% for education. Factors that were significantly associated with the level of perception were ethnicity, religion, type of cleft deformity and level of information. Conclusions Information regarding cleft deformity must be tailored toward mothers’ personal characteristics and type of cleft deformity to improve mothers' perception on this problem

VARIATION OF CHEMICAL PROPERTIES, CRYSTALLINE STRUCTURE AND CALORIFIC VALUES OF NATIVE MALAYSIAN BAMBOO SPECIES

The chemical properties of four common Malaysian bamboo species locally known as Beting (Gigantochloa levis), Semantan (Gigantochloa scortechinii), Lemang (Schizostachyum brachyladum) and Akar (Bambusa vulgaris) were studied. Chemical analysis shows that the alkaline extractive content for Malaysian bamboo species studied was within 24.4% to 25.6%, ethanol-toluene extractive content for Malaysian bamboo species was within 4.0% to 7.2% and water extractive content was within 10.4% to 12.8%. The average value of holocellulose content for Malaysian bamboo was between 64.5% to 70.67%, Klason lignin within 25.3% to 28.4%, cellulose content was between 28.5% to 33.8% and α-cellulose content for all bamboo species was within the range of 40.7% to 47.9%. The crystallinity of bamboo samples was between 42.0 to 44.4%, indicating their semi-crystalline structure.  Heating value of bamboo ranged between 17.0 MJ/kg to 18.1 MJ/kg with G. scortechinii having the highest heating value.. The Inductive Couple Plasma Atomic Emission Spectroscopy (ICP-ES) analysis showed that Potassium (K) and Calcium (C) were the major elements in the ash of all bamboo samples. This study demonstrates the potential of native bamboo species as an alternative sustainable raw material to wood for a wide range of applications

Dream Work Pictures Sdn. Bhd. / Rosnani Taman ... [et al.]

Dream Work pictures Sdn Bhd is a production house and service helping programs about MCP and all show television especially TV3 and NTV7. Dream Work Pictures is also excellent in every work about that undertaking and responsible for the action and commitment. We had provided services that will ensure to attract people to participate in each of our event. These are, I. To provided clients with and experience of great about TV programs and help them to enhance their performance in every aspect. II. In Malaysia through strategic networking in industry and establishing smart partnership with established institutions for the enrichment and accreditation purposes. III. To undertake entrepreneurial activities in a professional and business like manner

The effect of alkaline treatment on water absorption and tensile properties of non-woven kenaf polyester composite

The aim of this study is to determine the effect of alkali treatment on water absorption and tensile properties of non-woven kenaf polyester composite. Kenaf fiber mat was treated with 2, 4 and 6% of different sodium hydroxide (NaOH) concentration. The composite was fabricated using compression molding technique. It was found that treatment reduced the overall water uptake of composites. The 6% treated fibre composite was greater in moisture resistance as compared to untreated. The tensile strength of the composites was substantially improved after alkali treatment, and it was similar with the tensile modulus

Biodegradability analysis of KBF reinforced poly(lactic acid) biocomposites

Poly(lactic acid) (PLA) and kenaf bast fiber (KBF) were melt-blended using brabender into films in the PLA/KBF ratios of 100/0, 90/10, 70/30 and 50/50 for natural soil burial test. This formulation was used to study the biodegradability of PLA and PLA/KBF biocomposites. It was found that the decompositions of the biocomposite were faster than pure PLA. The SEM morphology of the tensile fracture surface of the 30% and 50% of PLA/KBF biocomposites presented larger pores and degradation areas than smaller KBF loading (10 wt%). This result shows that the addition of larger fibre loading to the PLA matrix increased the micropore surface area of the PLA/KBF biocomposite hence accelerated the decompositions time of the biocomposites

Effect of hot water fibre treatment on the properties of kenaf/polyester composites

The work was undertaken to evaluate the efficacy of hot water treatment of kenaf fibres on the properties of 36 volume % kenaf/polyester composites. Two hot water treatment temperatures were examined, 75˚C and 100˚C. Both involved soaking for 4 hours. The 75˚C treatment was supplemented by ultrasonic agitation. No ultrasonic agitation was used for the 100˚C treatment but some agitation was present due to the boiling action of the water. Untreated fibres were also examined for comparison.The hot water treatments were found to have a substantial effect on the appearance of the surface of the kenaf technical fibre bundles, with the coating seen on the untreated fibres being substantially removed by the hot water treatments. The 100˚C treatment was the most effective, indicating that temperature was more important than agitation. FTIR analysis indicated that the products removed were pectins and waxes. A lower amount of the carbonyl volatile fractions was emitted from the treated fibres during TGA, also consistent with the removal of pectin. The hot water treatments also increased the coarseness of the technical fibre bundles, with the increase being greatest for the 100˚C treatment. The tensile strength of single technical fibres was 182-245 MPa, the Young’s modulus was 13.0-19.2 GPa while the strain to failure was 1.3-1.4%. Because of the wide scatter in the data, no significant differences were detected between the different treatments when the data was analysed statistically. A Weibull analysis of the strength data gave Weibull modulus values of 1.7-2.0.The interfacial shear strength determined from the fragmentation test was 40.7 MPa for the fibres treated in 100˚C water, 13.3 MPa for the fibres treated in 75˚C water and 9.1 MPa for the untreated fibres. The improvement of interfacial shear strength with temperature of hot water treatment is attributed to the progressive removal of pectins and waxes from the surface of the fibres resulting in improved fibre matrix bonding. The tensile strength of the composites ranged from 91-100 MPa, with the modulus ranging from 13.1 to 14.6 and the strain to failure ranging from 1.5- 2.0%, while the flexural strength and modulus ranged from 112-138 MPa and from 14.7-17.2 GPa, respectively, and the impact strength ranged from 20.9-28.9 KJ/m2. The differences between the different treatments in tensile and impact properties proved not to be statistically significant, but the flexural properties were 20% lower for the composites made with the 100˚C water treated fibres than for the composites made with the other fibres

Characterization of Microcrystalline Cellulose Isolated from Paper Sludge

The large amount of paper sludge generated from wastepaper industries emphasizes the importance of developing green waste management. The study aimed to characterize microcrystalline cellulose from paper sludge using different acid concentrations. The properties of chemical composition, morphological, thermal, reflectance, and crystallinity index were accessed. The disappearance of peaks in FTIR was related to the removal of amorphous structure. SEM confirmed the reduction in diameter with the decomposed temperature of 266°C. 3.0 M reflects the highest UVB at 28% and UVA at 39% due to the highest crystallinity index of 31%, which is possible for reinforcement application in film packaging

Comparative study of celluloses from biofilm-forming bacteria for development of cellulose-reinforced Product

This study was conducted to compare the celluloses from Acetobacter xylinum and Pseudomonas fluorescens. Results showed that A. xylinum and P. fluorescens produce insoluble and soluble cellulose respectively. The agitation at several speeds was found to affect the form and yield of bacterial celluloses.Based on FTIR spectroscopy,the biochemical composition of A. xylinum cellulose was apparently distinct from that of p. fluorescens with regards to the spectral region between 830 cm-1 and 1400 cm-1.Sample preparation of P. fluorescens cellulose for XRD analysis was unsuccessful due to its high solubility in culture medium whilst XRD analysis demonstrated the high crystallinity (92.13%)of A.xylinum cellulose. Collectively, the variations between A.xylinum and P. fluorescents celluloses could be observed in terms of cellulose form, cellulose yield, biochemical composition and crystallinity. The findings from this study are expected to assist the industries in choosing the right source of bacterial cellulose for their commercial products

Effect of growth times on the physical and mechanical properties of hydrophobic and oleophilic silylated bacterial cellulose membranes

Bacterial cellulose is an extracellular natural byproduct of the metabolism of various bacteria. Its physical and mechanical properties were determined by growth period, method of cultivation either static or agitate, fermentation condition and medium. Thispaper presented works done on the effect of culture time on the physical and mechanical properties of silylated bacteria cellulose membranes. Bacterial cellulose (BC) growth under 4, 5, 6 and 7 days had been used as a natural reinforcement material and silane as a hydrophobic coating material. With extended culture time, the tensile strength and tensile modulus were increased linearly as result of more compact structure. Due to hydrophobic properties of silane, the water absorption and thickness swelling improved correspondingly. Contact angle testingusing three different liquid proven the functionality of silane as hydrophobic and oleophilic coating agent. The experimental results suggested that hydropobicand oleophilicsilylatedbacteria cellulose membranes with controlled growth time could be prepared and regarded as a reusable oil spills membrane

Strength Performance and Microstructure Characteristic of Naturally-Bonded Fiberboard Composite from Malaysian Bamboo (Bambusa vulgaris)

This study investigated the mechanical properties and microstructural characteristics of fiberboard composite produced by naturally-bonded Malaysian bamboo fiber (Bambusa vulgaris). The components that obtained through soda pulping of bamboo culms such as fiber and black liquor, were used for the preparation of high-density fibreboard composite at two target densities of 850 and 950 kg/m3. The bamboo fiberboard composite (BFC) were then produced at 200°C and two pressing parameters of 125 and 175 s/mm. The mechanical properties, e.g., flexural strength and internal bonding (IB) of BFC samples were evaluated according to BS EN 310: 1993 and BS EN 319: 1993, respectively. It was found that the mechanical performance of the composite with 850 kg/m3 density was significantly higher than 950 kg/m3 ones, especially for the samples with 125 s/mm pressing parameter. Microstructure characteristic of the BFC samples illustrated that the fiber linkages were cracked in the composites with higher density, e.g., the composite with the density of 950 kg/m3 and also black liquor were slightly degraded at longer pressing time, which led to the reduction in mechanical properties, especially in IB strength