Malaysian Journal of Applied Sciences (Journal of UniSZA - Universiti Sultan Zainal Abidin)
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Health Risk From Radioactive Iodine (RAI) Therapy And Medical Imaging- A Short Review
Full text linkDifferent role of radioactive iodine (RAI) has a different dosage. RAI is the effective treatment for cancer but has a short or long side effects such as xerostomia and loss of taste or smell. Ablation, adjuvant and therapeutic is the role of RAI and all of it has risk. RAI tend to increase the survival for the patient on progression-free survival and disease- free survival. Aside from that, computed tomography radiation has
been associated to a small but significant increase in the chance of fatal cancer during a person’s lifetime. This review aims to promote public awareness and lead initiatives to eliminate unneeded computed tomography scans. Despite evidence of recognized hazards of radiation-related computed tomography and cancer induction, the usage of pediatric computed tomography continues to rise. In the United States of America, more than 60 million computed tomography scans are projected to be conducted each year, with 7 million of those being performed on children. To decrease radiation exposure, pediatric radiologists employ the ALARA ('as low as reasonably achievable') concept. This idea is reinforced through education and lobbying directed towards recommending physicians. Clinical strategies that restrict computed tomography scanning and encourage non-radiation imaging modalities like ultrasound and magnetic resonance imaging might help decrease radiation exposure even further. Although individual risk estimates are tiny, the widespread use of computed tomography in the community may result in future public health concerns
A Review of Game Theory and Multi-Criteria Decision-Making Methods with Application to the Oil Production and Price
Full text linkThe oil production and price issues have been discovered a long time ago, and always be a continuous problem to the globe especially during the current global threats of the coronavirus pandemic. This paper provides a literature review that involves game theory and multi-criteria decision-making (MCDM) methods with its applications to oil production and price problems. This paper identifies and analyses the use of the game theory and MCDM methods on oil production and price to compare the situation studied, to determine the model that has been used, the trend of past literature and also the details of the basic elements for the game theory framework. Therefore, the oil production and price problem using the game theory and MCDM methods are reviewed and numerous applications studied from the past works of literature are highlighted. The trend of oil production and price which used the game theory and MCDM methods based on the year 2001 till 2021 is still lacking sources from the Web of Science and Scopus databases. The main contribution of the recent study is the employment of the game theory and MCDM methods to the oil production and price problem.
Keywords: Game theory; MCDM; oil production; oil pric
Increased Digital Literacy Skills as a Catalyst for Driving Nigerian Digital Economy- An Overview
Full text linkDigital economy is being promoted in both developed and developing nations of the world. Nigeria, as a developing country, is not left behind in the promotion of the IT-driven economy across different sectors. Digital economy is the type of economy that is built around computing technologies, solutions, and platforms. Preliminary review of literature in this area revealed that focus has been more on the provision of wireless broadband and other technological infrastructure that are needed to support digital economy deployment. It was observed that digital literacy skills that are needed to drive it successfully are less canvassed for. This paper reported the prospects of having widespread digital literacy skills in promoting the digital economy. It focused on discussing how adequate training and exposure on various technologies should be a thing of priority among government and individuals in the country so that the technology-based economy can be fully harnessed. These relevant papers selected reported the overview of using digital literacy skills for attaining improved digital economy across different sectors in Nigeria.
Keywords: Digital Economy, Digital Literacy, Internet Penetration, Technological skill
A Mathematical Model of Geared DC Motor Based of Overhead Crane Control System Prototype
Full text linkOverhead crane system is largely used in the heavy industries as the main part of material handling mechanism. The overhead crane operated by the electric motor and its controller shall fulfill two major requirements which are fast response as well as accurate positioning during moving the goods from one location to another location. However, to simulate the real overhead crane system is tedious and time consuming due to the large structure and safety reasons. Thus, this project will try to simulate the performance of the prototype version of the overhead crane system that has been predicted to perform like the original one but in a small scale. In order to simulate that, a mathematical model of the geared DC motor-based of overhead crane control system prototype shall be formulated. The mathematical model is developed and tested by using Matlab/Simulink software. The mathematical model is being tested in two conditions, without controller and with controller. To acquire the gain value of the controller, first method of the Ziegler-Nichols method is applied. The developed model will be verified for various positions and loads. The performance of the model will be measure in terms of the time response which are rise time, peak time, percentage overshoot, and settling time as well as the steady-state error for the position accuracy. The results will confirm that a good mathematical model will give the best projection to imitate the performance of the real size of the overhead crane.
Keywords: Geared DC motor, overhead crane system, first method of Ziegler-Nichols, time respond, position accurac
Conceptual Design And Simulation Analysis Of Dough Mixer-Maker Machine
Full text linkCollecting information on the use of kitchen appliances i.e. dough mixers is important to provide a more efficient and high-quality system and design. Nowadays, dough mixers that can only knead the dough are widely used to get a complete dough while saving time. Therefore, a dough mixer machine that operates with two functions such as McDuo Maker Machine is developed to save users time in kneading the dough as well as forming the finished dough into a cake according to the set mold. Currently, the machines developed in the market only work for kneading dough. Therefore, this machine is developed to produce a machine that can operate with two functions namely mixing the dough and forming the dough into a cake
Design Modification and Structure Simulation Analysis of Tapioca Peeling Machine
Full text linkThis project works on the design of a tapioca peeling machine for peeling freshly harvested tapioca tubers with the capacity of peeling tubers of different weight and diameter sizes. The need to mitigate the low output, drudgery, high labor costs and losses associated with manual peeling called for the design of the machine to improve the agricultural yield of the crop. The objectives of the research were to study the existing tapioca peeling technologies, to select and size the machine components, to develop the layout of the machine and to carry out the cost analysis of the tapioca peeling machine. To solve the problem, the innovation was formulated to peel tapioca skin with two stage of peeling (the first layer and the second layer) to increase productivity. From simulation of eco-auto-tap , the design of machine can work succesfully, and be a great improvement in the tapioca machin
Photoelectrochemical Process of Producing Hydrogen Gas Energy from Brewery Wastewater
Full text linkThe major portion of the energy needs of the world are obtained from fossil fuels. However, the future of fossil fuel is beclouded with environmental threats and degradation, which has caused an adverse effect on human health. Therefore, seeking a non-polluting alternative energy source has become important and necessary. Hydrogen gas energy constitutes low-cost energy without any negative impact on the environment and human health. Furthermore, Hydrogen gas energy can replace fossil fuels based on its physical and chemical properties. This research aims to produce hydrogen gas via a photo-electrochemical process unit using brewery wastewater. The specific objective is to design and fabricate a new electrolyzer to produce hydrogen gas from brewery wastewater. A new fabricated photo-electrochemical electrolyzer of dimension 24 cm x 42 cm x 28 cm was designed with a 10-plate stainless-steel electrode. The electrolyzer was connected upwardly to a gas storage container, dc compressor, and a gas cylinder. The electrolyzer was connected to a 12 Volt 9 Amps battery, two-100W solar panels. A mixture of 8 liters of brewery wastewater and 160 grams of NaOH was charged into the electrolyzer, after which the electrolysis process commenced. The process was left for 5 days. Within these times, hydrogen and carbon dioxide gases were produced simultaneously and collected by the upward method. The produced gases were compressed by high pressured gas cylinders respectively using a compressor of 350 bars. Voltage and current supplied by solar panels to the electrolyzer were monitored. The maximum and minimum voltage and current readings were ranged between 3.63 V – 13.60 V and 1.83 A -7.81A, respectively. This result revealed that high voltage and near-constant amperage readings would produce more hydrogen gas than low voltage readings. The weight of hydrogen produced after 5 days of observations was 2.01kg. This study demonstrated that hydrogen gas energy could be produced from locally made non-polluting devices, turning brewery wastewater into a useful form of energy and creating a carbon-free environment.
Keywords: Energy Sustainability, Photo-Electrolytic Process, Brewery Wastewater, Hydrogen Generation, Carbon Neutralit
Application of Mahalanobis-Taguchi System in Full Blood Count of Methadone Flexi Dispensing Program
Full text linkPatient under methadone flexi dispensing (MFlex) program are required to do blood tests like full blood count (FBC). A doctor assesses 3 parameters like haemoglobin, platelet count, and fasting blood sugar to ensure the patient has FBC problem. Consequently, the existing system does not have a stable ecosystem towards classification and optimization. The objective is to apply Mahalanobis-Taguchi system (MTS) in the MFlex program. The data is collected at Bandar Pekan clinic with 34 parameters. Two types of MTS methods are used like RT-Method and T-Method for classification and optimization respectively. The average Mahalanobis distance (MD) of healthy is 1.0000 and unhealthy is 187.0555. Positive degree of contribution has 19 parameters. 15 unknown samples have been diagnosed. Type 5 of 6 modifications has been selected as the best proposed solution. In conclusion, a pharmacist from Bandar Pekan clinic confirmed that MTS able to solve problem in classification and optimization of MFlex program
The Beautiful Mind : A Case Report
Full text linkCaring for a family member diagnosed with schizophrenia will not only impart a lifetime of emotional distress but also social and financial challenges. Failure to anticipate and cope with the burden of care responsibilities will add unnecessary risk to permanent injury resulting in substandard management of the patient and even death. We describe a case of successful removal of nine (9) constricting rings from the finger of both hands in a poorly taken care of an abusive relapse schizophrenia patient using an oscillating saw and ring cutter under procedural sedation combined with wrist block in the emergency department (ED). Early recognition and definitive treatment are of paramount importance to avoid irreversible ischemia and gangrene. The possible risk of negligence should be kept in mind bearing a link with depression among members caring for schizophrenia.
Keywords: Schizophrenia, Emergency Department, Negligence, Early recognitio
A Brief Overview of Population Biology of Mangrove Fisheries in Malaysia
Full text linkOne of important habitat for estuarine fish and their juvenile are mangrove areas, as hundreds of studies had been conducted since 1950s until now to assess and understand the distribution and diversity of them over there. The study of population biology in tropical and sub-tropical mangrove estuaries nowadays have reached new level of achievement where they contribute significantly in the socio-economic field. So, the main objective of this paper are briefly described and reviewed some aspects of population biology (such as distribution and diversity) of mangrove fisheries in Malaysia. In the making of this paper, literature materials from the past such as scientific journals, reference books and online statistics related to mangrove fisheries were collected and referred. Species diversity and distribution of fish is one of the most important aspects in stock assessment of mangrove fishes as it provides a brief information on the composition of fish species and their populations. Overall, the information from this paper can be shared with the concerned authorities and researchers for management purposes and population studies to a greater extent