327 research outputs found

    Saranan HAMKA terhadap Perpaduan Bangsa Serumpun Malaysia – Indonesia

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    Hamka adalah tokoh Nusantara yang sinonim dengan gelaran ulama dan menulis lebih dari 100 buah buku dalam pelbagai bidang. Bukan setakat sifat ulamak yang menjadikan beliau dikagumi tetapi kemampuannya sebagai pemimpin, penulis, pemikir, pujangga dan pejuang bangsa menjadikannya milik masyarakat Nusantara. Penulisan ini akan memperlihatkan bagaimana sifat keperibadian dan karisma Hamka dalam memperjuangkan penyatuan bangsa serumpun Malaysia-Indonesia berdasarkan ilham dan cita-cita sepanjang tempoh kehidupannya. Timbulnya isu-isu yang menggugat keharmonian kedua negara ternyata telah mencabar semangat serumpun yang diwarisi sejak ratusan tahun. Roh dan semangat serumpun semakin meminggir malahan tidak disedari oleh sebahagian generasi baru kerana identiti negara bangsa yang bersifat patriotik. Hamka telah menyedari bakal berlakunya pemecahan identiti bangsa dan kerosakan terhadap nilai serumpun sekiranya tidak dipertahankan oleh Malaysia dan Indonesia. Melalui kajian dan mengabstrakkan hasil-hasil karya Hamka sama ada dalam bidang sejarah, politik, novel, falsafah, tafsir dan biografi, beberapa elemen yang menyatukan bangsa serumpun akan dilihat sebagai bukti bahawa Hamka mempunyai cita-cita dan misi dalam menyatukan bangsa serumpun. Melalui penulisannya, Hamka menjadikan Melaka sebagai lambang kejatuhan bangsa serumpun di samping memperjuangkan pemikiran agama sebagai penyatuan. Selain perjuangan menangkis pengaruh luar yang melemahkan bangsa, Hamka menjadikan bahasa, tulisan dan sastera sebagai lambang penyatuan bangsa serumpun. Penolakan terhadap sikap sentrik dan pengukuhan identiti bangsa serumpun merupakan perjuangan dalam memastikan umat Melayu dan Islam di kedua negara bersatu. Jumpaan terhadap perjuangan Hamka melalui karya dalam bidang sejarah, bahasa, budaya dan agama ini boleh dijadikan panduan dalam konteks negara serumpun bagi memastikan perhubungan negara bangsa yang lebih harmoni dan beridentitikan dunia Melayu

    Quality attributes of fresh pineapple-mango juice blend during storage

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    Blending or mixing two or more of fruit juices is able to improve the quality of juices as compared to single flavour. Pineapple and mango are among the popular tropical fruits in Malaysia. Despite the massive production of pineapple in Malaysia, utilisation of pineapple as a juice remains unpopular due to its exotic and strong flavour. Blending of pineapple with mango is believed to overcome this issue. Nevertheless, suitable blending ratios play important role in the end product quality. The present work aims to determine the physicochemical and nutritional quality of fresh blended pineapple-mango juice at different blending ratios for 25 days of refrigerated storage (4 ± 2°C). Physicochemical (colour, pH, titratable acidity, and total soluble solid) and nutritional (vitamin C, total phenolic content, and total antioxidant content) properties of fresh pineapple-mango juice blends of ratio 80% pineapple with 20% mango (R80:20) and 50% pineapple with 50% mango (50:50) were determined throughout 25 days of storage. Pineapple-mango juice blends at blending ratio of R80:20 exhibited better qualities in term of colour (lightness, chroma, hue, and browning index), chemical composition, and nutritional content

    Effect of blending ratio on quality of fresh pineapple (Ananas comosus L.) and mango (Mangifera indica L.) juice blends

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    Quality and alimental contents of single fruit juice can be ameliorated through mixing or blending process with other fruit juices. Pineapple and mango are the most popular tropical fruits in Malaysia with good characteristic taste. Color properties of pineapple and mango juice blends at ratio of 70P:30M; 50P:50M; 30P:70M was evaluated in term of L*, a*, b* hue, Chroma, color difference (ΔE). Blends ratio 70P:30M juice give the best color performance in terms of hue, chroma and ΔE. Physicochemical properties of juice blends ratio of 70P:30M also give more perishable results of pH (4.32) titratable acidity (0.66% malic acid), total soluble solid (13.67), vitamin C (54.25 mg ascorbic acid/100 ml), and turbidity (438 NTU)

    Isolation and identification of polystyrene degrading bacteria from zophobas morio’s gut

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    Polystyrene (PS) and expanded polystyrene (EPS) are commodity plastics widely used in many industries. The increase of PS in the environment causes ecological threats. It has been observed that the beetle larvae feed on plastic packages, and this has drawn the researcher’s attention towards the complex system within the larvae’s gut where relationships between fungi, bacteria, and the insect host have been established. The objective of this study is to isolate and identify PS-degrading microbe from super worms. The study used polystyrene as a sole carbon source to isolate the positive PS-degrading bacteria. Five bacterial colonies which showed positive growth on the modified PS-agar plate were isolated. All five colonies of the PS-degrading bacterial isolates were identified using partial 16 S rRNA gene sequencing. The results showed a close relationship between Bacillus aryabhattai and Bacillus megaterium strains. An examination via biochemical studies for distinction was implemented further. Based on the morphological characterization and taxonomic method, the isolates were identified as Bacillus megaterium. The isolates' viability was tested using 2,3,5-triphenyltetrazolium chloride (TTC), and positive results were obtained with red-colored insoluble triphenylformazan (TPF) formed within 5 to 7 days. The isolation and identification of these bacteria from Zophobas morio’s gut may provide a promising source of a plastic degrading enzyme that can be further studied and manipulated in developing enzymatic biodegradation in plastic waste management

    COX-2 inhibitors: a potential target for drug therapy in the management of colorectal cancer

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    Colorectal cancer is currently the third most common cancer in Malaysia. Elevated expression of COX-2, an induced cyclooxygenase isoenzyme, has been seen in colonic adenomas and colorectal carcinoma. There is evidence that inhibition of this COX-2 can decrease the risk of colorectal cancer. Selective COX-2 inhibitors may have a role in reducing the risk of colorectal cancer in high-risk individuals

    Pilot Survey On The Conservation Of Historical Buildings In Malaysia

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    Historic buildings basically represents the single most visible aspect of our past history and culture

    A two-component CFD studies of the effects of H2, CNG, and diesel blend on combustion characteristics and emissions of a diesel engine

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    Numerical simulations were conducted on a Ricardo Hydra diesel engine which is single cylinder engine and uses direct injection method. This study was performed by using a two-dimensional CFD code to examine the combustion characteristics and emissions of a diesel engine in diesel-CNG and diesel-H2 dual-fuel operations, as well as in the diesel-CNG-H2 tri-fuel operation at various air-fuel ratios. The results indicate that the peak in-cylinder pressure and peak temperature were increased with the addition of gaseous fuels at low and medium values of exceeds air. Compared with Diesel-H70-N30 for tri-mode and Diesel-H2 for dual mode, it is observed that there were no effects on the peak temperature at high exceed air. At 2.4 exceed air, the peak pressure increases by means of adding the limit value of hydrogen, such as H30-N70 and H50-N50, to CNG and it begins to decrease with H70-N30 and H2-Diesel operations. Diesel-H2-CNG operations decrease CO/CO2 emissions compared with Diesel-CNG operation and decrease NO emission compared with Diesel-H2 operation at every exceed air. The reduction in CO/CO2 emissions was suggested at high hydrogen fraction in CNG (H70-N30) with all exceeds air whereas low hydrogen fraction in CNG (H30-N70) can repress uncontrolled hydrogen combustion and further limit the increment of NO emission

    Carotid Doppler Ultrasonography Evaluation in Patients with Storke

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    INTRODUCTION : Stroke is defined as rapid onset of focal neurological deficit resulting from diseases of cerebral vasculature and its contents1. Community surveys in India have shown a crude prevalence rate for hemiplegia in the range of 200 per 100,000 persons, nearly 1.5% of all urban hospital admission, 4.5% of all medical and around 20% of neurological cases.1 Stroke is one of the leading causes of mortality and morbidity. Ischemic infarcts account for 80-85% of all strokes. Stroke related neurological disability has a major impact on the patient, family members and caretakers. 17% will remain institutionalized and 25-30% will need moderate to total assistance for activities of daily living2. Carotid atherosclerosis is one of the main risk factor for ischemic stroke which accounts for 5-10% of all ischemic stroke3. Carotid endarterectomy has been shown to effectively reduce the risk of developing stroke in patients with significant stenosis i.e. 70% or more. Various noninvasive vascular techniques can now be used to evaluate Carotid atherosclerosis which includes Carotid Doppler Ultrasonography, transcranial Doppler, CT angiography, Magnetic Resonance angiography, contrast enhanced Magnetic Resonance angiography. Among the tests Carotid Doppler ultrasound is a noninvasive, cost effective and easy available mode of investigation to identify the patients with significant stenosis and other changes due to atherosclerosis. AIMS OF THE STUDY : 1. To study the role of Carotid Doppler Ultrasonography in the diagnosis and management of stroke patients. 2. To study retrospectively the various abnormalities in Carotid arteries in patients who had suffered stroke. 3. To determine the usefulness of doing Carotid Doppler Ultrasonography as a screening procedure in predicting the chance of developing stroke in persons having risk factors for stroke. MATERIALS AND METHODS : The study was conducted in Department of Medicine, Government Mohan Kumaramangalam medical college, Salem in the year 2005-2006. Inclusion Criteria : Patients who suffered ischemic stroke in the anterior circulation of the brain as confirmed by CT scan brain. Exclusion Criteria : 1. Patients who suffered stroke due to intracerebral hemorrhage. 2. Patients who suffered stroke due to head injury. Methods : In this study patients who are admitted with history of sudden onset of neurological illness are subjected to CT scan brain. Among them patients who had suffered ischemic stroke in the anterior circulation are selected and they were further evaluated in the following ways. 1. Detailed history taking for the evaluation of risk factors such as hypertension, diabetes mellitus, smoking, previous TIA, previous stroke and coronary artery disease. 2. Complete physical examination to know the type of cerebrovascular accident (for right / left hemiplegia) and Carotid artery examination for the presence of bruit. 3. Laboratory investigation which include blood sugar, serum total cholesterol, ECG and Carotid Doppler Ultrasonography. CONCLUSION : 1. Doppler Ultrasonography of Carotid arteries shows significant changes due to atherosclerosis in the patients who suffered stroke. 2. Abnormalities in the vessel wall is more pronounced than the flow disturbances due to stenosis. 3. Since most of the patients showed changes in the contra lateral sides and ECG changes suggestive of ischemic heart diseases it is taken as an evidence of generalized vascular disease due to atherosclerosis. 4. Arterial wall motion abnormalities and plaque characteristics by tissue Doppler imaging is more useful in predicting the risk of stroke than detecting flow pattern abnormalities. 5. Carotid Doppler Ultrasonography cannot substitute for angiography as the sole preoperative tests for Carotid endarterectomy. 6. However it can be used as a screening test for the detection of the asymptomatic Carotid disease in patients with risk factors for stroke

    CFD SIMULATION FOR TRAY DRYER OPTIMIZATION

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    The paper presents the design and analysis of tray dryer system. The design was done in Solidwork while the analysis and simulation performed using ANSYS FLUENT. ANSYS FLUENT is a Computational Fluid Dynamic (CFD) software in which flow fields and other physics are calculated in detail for various engineering applications. The analysis was done to analyze heat transfer and temperature distribution, ressure, air flow and turbulence. Before generating the product in 3D modeling, the basic data or information of tray dryer system is required such as dimension of dryer equipment, air and heat source supply range, sizing method and etc. Through his step, the dryer system development and function ability can be clearly understood by the end of analyzing process is accomplished

    Color Thresholding Techniques Performance for Night Vision Surveillance Using Thermal Imaging

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    Visible surveillance is commonly an active research worldwide. The need of surveillance allows thermal imaging to participate in this study activity. The drawback of visible surveillance for night monitoring is overcome by the technology of the thermal imaging. To achieve the goal of the surveillance system , the works on detection must be very efficient to do the detection Throughout this research , we developed an algorithm involving thresholding technique for subject detection using thermal image to find the for night surveillance system
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