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Long-Term Electricity Demand Forecasting for Malaysia Using Artificial Neural Networks in the Presence of Input and Model Uncertainties

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Energy Engineering 2021年第3期118卷 715-725页

作者： Vin Cent Tai Yong Chai Tan Nor Faiza abd rahman Hui Xin Che Chee Ming Chia Lip Huat Saw mohd Fozi Ali Centre for Modelling and Simulation Faculty of EngineeringBuilt Environment and Information TechnologySEGi UniversityPetaling JayaMalaysia Mechanical Engineering Department Faculty of EngineeringBuilt Environment and Information TechnologySEGi UniversityPetaling JayaMalaysia Lee Kong Chian Faculty of Engineering and Science UTARKajangMalaysia Faculty of Civil Engineering Universiti Teknologi MARAShah AlamMalaysia

Electricity demand is also known as load in electric power *** article presents a Long-Term Load Forecasting(LTLF)approach for *** Artificial Neural Network(ANN)of 5-layer Multi-Layered Perceptron(MLP)structure has been designed and tested for this *** of input variables and ANN model were introduced to obtain the prediction for years 2022 to *** correlation was used to examine the input variables for model *** analysis indicates that Primary Energy Supply(PES),population,Gross Domestic Product(GDP)and temperature are strongly *** forecast results by the proposed method(henceforth referred to as UQ-SNN)were compared with the results obtained by a conventional Seasonal Auto-Regressive Integrated Moving Average(SARIMA)*** R^(2)scores for UQ-SNN and SARIMA are 0.9994 and 0.9787,respectively,indicating that UQ-SNN is more accurate in capturing the non-linearity and the underlying relationships between the input and output *** proposed method can be easily extended to include other input variables to increase the model complexity and is suitable for *** the available input data,UQ-SNN predicts Malaysia will consume 207.22 TWh of electricity,with standard deviation(SD)of 6.10 TWh by 2030.

关键词： Long-term load forecasting SARIMA artificial neural networks uncertainty analysis Malaysia

Anemia among Antenatal Mother in Urban Malaysia

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Journal of Biosciences and Medicines 2015年第3期3卷 6-11页

作者： Kim Lam Soh Eusni Rahayu mohd Tohit Salimah Japar Soh Kim Geok Norhaslinda Binti ab rahman Rosna abdul Raman Nursing Unit Department of Medicine Faculty of Medicine and Health Science Universiti Putra Malaysia Malaysia Department of Pathology Faculty of Medicines and Health Sciences Universiti Putra Malaysia Malaysia Department of Sport Studies Faculty of Education Universiti Putra Malaysia Malaysia Hospital Ampang Pandan Mewah Ampang Selangor Malaysia

An understanding of factors influencing haemoglobin (Hb) level among antenatal mothers can help healthcare providers assess, take appropriate action and manage anaemia in this risk group more effectively. A cross-sectional study was conducted in urban areas in Malaysia to determine the Hb levels of antenatal mothers and their association with various socio-economic characteristics. Data for this study were collected from pregnant women during their first antenatal check-up at three selected polyclinics in Malaysia. Anaemia in pregnancy was determined by the Hb level recorded during the first and the last antenatal visits. Determination of Hb was either by a photo calorimetric method or by the Sahliís method. A structured self-administered questionnaire was used to identify the factors influencing Hb level among the antenatal mothers. This study found that 73 out of 217 mothers (33%) were anaemic in that their Hb levels were below 11.00 g/dl. The findings also suggested that Hb levels among the antenatal mothers were influenced by various factors such as education level, occupation, and family income. Anaemia was generally more common among antenatal mothers who had a lower level of education and who were from a background of lower family income.

关键词： Antenatal Mothers Pregnant Women Haemoglobin Anemia Maternal Malaysia

Factors influencing COVID-19 vaccination intention among university students:A cross-sectional study in Malaysia

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Biosafety and Health 2023年第1期5卷 37-44页

作者： Chee Yin Wong Jen Sern Tham Chai Nien Foo Foong Leng Ng Saleha Shahar mohd Nizam Zahary mohd Nazri Ismail Cheng Siang Tan Boon Peng Hoh Subbiah Vijay Kumar Yang Mooi Lim Center for Cancer Research Universiti Tunku Abdul RahmanKajang 43000Malaysia M.Kandiah Faculty of Medicine&Health Sciences Universiti Tunku Abdul RahmanKajang 43000Malaysia Department of Communication Faculty of Modern Languages and CommunicationUniversiti Putra MalaysiaSerdang 43400Malaysia UPM-UNICEF C4D Faculty of Modern Languages and CommunicationUniversiti Putra MalaysiaSerdang 43400Malaysia Faculty of Science Universiti Teknologi MalaysiaJohor Bahru 81310Malaysia Faculty of Health Sciences Universiti Sultan Zainal AbidinKuala Nerus 21300Malaysia Analytical Biochemistry Research Centre Universiti Sains MalaysiaBayan Lepas 11900Malaysia Faculty of Medicine and Health Sciences Universiti Malaysia SarawakKota Samarahan 94300Malaysia Faculty of Medicine and Health Sciences UCSI UniversityCheras 56000Malaysia Biotechnology Research Institute Universiti Malaysia SabahKota Kinabalu 88400Malaysia

Vaccination is crucial in controlling the spread of the coronavirus disease 2019(COVID-19)that triggered the pandemic,but herd immunity can only work with high vaccination coverage in the *** study aims to measure the COVID-19 knowledge level and determine the factors influencing COVID-19 vaccination intention among university students in Malaysia.A cross-sectional online survey was carried out with 1,274 Malaysian university students in July *** and multivariate analyses were employed to examine the relationships between the study *** showed that the majority of university students had an acceptable level of knowledge of *** knowledge,risk perception of COVID-19,social norms,and perceived benefit of COVID-19 vaccination were positively associated with vaccination ***,perceived trust in information sources of COVID-19 vaccination and the government's response to COVID-19 did not affect the university students’desire to receive the *** findings are essential for health policymakers and healthcare providers to implement evidence-based interventions to increase COVID-19 vaccination uptake among university students.

关键词： Behavioral intention COVID-19 Influencing factor SARS-CoV-2 University student Vaccination

In VitroRegeneration of Curcuma caesiaPlantlets from Basal Part and via Somatic Embryogenesis

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Advances in Bioscience and Biotechnology 2014年第4期5卷 363-372页

作者： ab. rahman Zuraida Kamaruddin Fatin Liyana Izzati Othman Ayu Nazreena Che mohd Zain Che Radziah Sheikh Ghadzi Siti Nur Asyikin Subramaniam Sreeramanan Biotechnology Research Centre MARDI Headquarters Persiaran MARDI-UPM Serdang Malaysia Faculty of Science and Technology Universiti Kebang-saan Malaysia Bangi Malaysia School of Biological Sciences Universiti Sains Malaysia (USM) Minden Heights Malaysia

Plantlets of Curcuma caesia were produced in vitro from newly sprouting vegetative buds of tubers. Segments of the plantlets from the junction between the root and the basal portion of the stem were subsequently used as explants to investigate factors affecting callus induction and plant regeneration via somatic embryogenesis. The explants were placed on Woody Plant Medium (WPM) together with different concentrations of 2,4-dichlorophenoxyacetic acid(2,4-D) and benzyl aminopurine (BAP) in the presence of light. The growth medium supplemented with 5 mg/L BAP and 2 mg/L 2,4-D promoted callus induction after 70 days of culture. Sub-culturing on the same medium enhanced the production of friable callus. Culture media containing higher concentrations of agar promoted the development of green somatic embryos from the callus. Respond of somatic embryogenesis was most successful with MS medium in 6.0 g/L agar supplemented with 5 mg/L BAP and 0.2 mg/L 2,4-D whereby the callus developed into green somatic embryos with an efficiency of 53%. This culture medium also produced the largest number plantlets.

关键词： In Vitro Regeneration Somatic Embryogenesis Curcuma caesia

Addressing sleep disorder of autistic children with Qur’anic sound therapy

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Health 2013年第8期5卷 73-79页

作者： mohd Amzari Tumiran Siti Patonah Mohamad Rohaida mohd Saat mohd Yakub Zulkifli mohd Yusoff Noor Naemah abdul rahman Durriyyah Sharifah Hasan Adli Academy of Islamic Studies University of Malaya Kuala Lumpur Malaysia Faculty of Education University of Malaya Kuala Lumpur Malaysia Faculty of Science University of Malaya Kuala Lumpur Malaysia

Autism is a neural development disorder characterized by the deterioration in social interacttion, abnormal language expression, repetitive actions, imaginative game tendencies, and limited and/or obsessiveness in certain activities/ interests. Lack of sleep is one of the factors contributing to the worsening of overall negative symptoms of autistic children. From the Islamic perspective, sleep is a necessity and could function as a treatment for health problems, in addition to influencing behavior patterns. Sound therapy has been used in dealing with various health problems, including sleep problems and mental ill health. Possibly, it can also address sleep problems of the autistic children. Listening to the melodious Qur’anic recitation is known to have therapeutic effects even on individuals who do not understand the meaning of the verses being read;it could function as sound therapy. However, no established work has been done to study the effect of Qur’anic verses recitation on autistic children and their sleep problems. Similar to the use of music therapy, Qur’anic recitation is also expected to have a positive impact on speech, learning and interpersonal relationship. As a healing medium, Qur’anic therapy is also expected to have a better result as compared to other conventional sound therapy since its content could be psychotherapeutic.

关键词： Sleep Disorder Autism Qur’anic Therapy Sound Therapy

Optimization of Extraction Conditions for Total Phenolics and Total Flavonoids from Kaempferia parvifloraRhizomes

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Advances in Bioscience and Biotechnology 2018年第5期9卷 205-214页

作者： Zuraida ab rahman Shazwan abd Shukor Hartinee abbas Chandradevan A. L. Machap mohd Suhaimi Bin Alias Razali Mirad Syairah Sofiyanand Ayu Nazreena Othman Biotechnology & amp Nanotechnology Research Centre MARDI HQ Persiaran MARDI-UPM Serdang Malaysia Horticulture Research Centre MARDI Sintok Bukit Kayu Hitam Malaysia Food Technology Research Centre MARDI HQ Persiaran MARDI-UPM Serdang Malaysia Agrobiodiversity and Environment Research Centre MARDI HQ Persiaran MARDI-UPM Serdang Malaysia Nilai Polytechnic Kompleks Pendidikan Bandar Enstek Bandar Enstek Malaysia

Kaempferia parviflora plants derived from in vitro culture were grown in the glasshouse. A comparison of the yield of total phenolics and total flavonoids under varying extraction conditions from rhizomes harvested from plants of different ages was undertaken. The results showed that phenolic and flavonoid contents in the rhizomes were highest 8 months after planting. Another study found that 2 g rhizomes extracted in 50 ml of water at 90°C for 120 minutes gave the best yield of phenolics and flavonoids. Under these conditions, an average of 210 mg GAE/g dry weight of total phenolics and 81 μg QCE/g dry weight of total flavonoids were obtained.

关键词： Phenolics Flavonoids Kaempferia parviflora Extraction

A Simple and Efficient Protocol for the Mass Propagation of Vanilla planifolia

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American Journal of Plant Sciences 2013年第9期4卷 1685-1692页

作者： ab rahman Zuraida Kamarulzaman Hassan Fatin Liyana Izzati Othman Ayu Nazreena Wan Sembok Wan Zaliha Che mohd Zain Che Radziah Zainal Zamri Subramaniam Sreeramanan Biotechnology Research Centre MARDI Headquarters MARDI HQ Persiaran MARDI-UPM Serdang Selangor Malaysia Department of Agrotechnology Faculty of Agrotechnology and Food Science Universiti Malaysia Terengganu Kuala Terengganu Malaysia Faculty of Science and Technology Universiti Kebangsaan Malaysia Bangi Malaysia School of Biological Sciences Universiti Sains Malaysia (USM) Minden Heights Malaysia.

The present study describes a direct shoot regeneration-based micropropagation procedure for Vanilla planifolia. Two types of explant (i.e. shoot apex and stem nodal segment) were screened for their shoot induction potential following a three-month treatment with 6-benzylaminopurine (BAP) and α-Naphthaleneacetic acid (NAA). Results indicated that the shoot apices were poor candidates for shoot induction whereas the stem nodal segments showed potential for shoot initiation at a rate of up to 6 shoots/explant. Stem nodal segments were the most responsive as shoots formed (55 shoots) directly following treatments with 1 mg/L BAP at half strength MS medium after the third subculture. In addition, more shoots were produced on solid medium treatments compared to the liquid medium treatments in two strengths of mediums tested. Regenerated plantlets derived from the 1 mg/L of BAP treatment were induced to root following a one month culture in growth regulator-free MS medium. There was 90% survival rate of the rooted plantlets after acclimatization in the greenhouse. The findings in the present study would be helpful for large-scale mass propagation of Vanilla planifolia using this simple and efficient protocol.

关键词： Vanilla planifolia Mass Propagation Growth Regulator In Vitro BAP NAA IBA

Dye-tolerant marine Acinetobacter baumannii-mediated biodegradation of reactive red

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Water Science and Engineering 2018年第4期11卷 265-275页

作者： Sneha Unnikrishnan mohd Hashim Khan Karthikeyan Ramalingam School of Life Sciences B.S.Abdur Rahman Crescent Institute of Science and Technology

The objective of this study was to isolate a potent dye-degrading microbe that can be used to reduce the pollution caused by industrial *** red 198 is an extensively used textile dye and is a major environmental pollutant in water bodies. In this study, a bacterial strain was isolated from sea sediments and identified as Acinetobacter baumannii with 16S rRNA sequencing. The isolated bacteria were immobilized in calcium alginate and decolorization studies were carried out to determine the optimum pH, temperature, dye concentration, inoculum volume,and static/agitated condition using the one factor at a time(OFAT) approach. The Box-Behnken design, a type of response surface methodology,was adopted to improve the degradation efficiency. At 37℃ using an inoculum volume of six beads, 96.20% decolorization was observed in 500 mg/L of reactive red 198 after 72 h. Dye degradation was confirmed with UV-visible spectroscopy and Fourier-transform infrared(FTIR)spectroscopy studies of the dye and degraded metabolites. Microbial toxicity studies using Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa and phytotoxicity studies using Vigna radiata proved that the toxicity of the dye was significantly reduced after degradation. We can conclude that the isolated A. baumannii strain is an efficient dye-degrading microbe that can be used to reduce the pollution caused by industrial dyes.

关键词： Immobilization Box-Behnken design Response surface methodology Microbial toxicity Dye degradation

Forecasting towards Planning and Sustainable Development Based on a System Dynamic Approach: A Case Study of the Setiu District, State of Terengganu, Malaysia

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Open Journal of Statistics 2016年第5期6卷 931-950页

作者： Muhamad Safiih Lola mohd Noor Afiq Ramlee Hanani Isa Mhd Ikhwanuddin abdullah mohd Fadli Hussin Nurul Hila Zainuddin mohd Naeim rahman School of Informatics and Applied Mathematics University Malaysia Terengganu Kuala Terengganu Malaysia Institute Aquaculture Tropical University Malaysia Terengganu Kuala Terengganu Malaysia

In this paper, a system dynamics approach is used instead of the traditional approaches to stimulate, forecast and analyze the economic effects of an existing policy practice in Setiu Wetland. As a part of Setiu district that uphold tradition in fishery and maritime based industry, Setiu Wetland area seems to be left behind in terms of economic and livelihood. Generally, Setiu development policy consists of five sub-system including population growth, economic, residential, transportation and sub-urban sprawl. Due to their widespread population distribution, Setiu Wetland receives low urban-related progress. Hence, a forecast of 30 years from 2016 to 2046 providing a necessary insight for potential development of the Setiu Wetland region, to simulate its environment, identify gaps, propose suitable land model towards Setiu Minapolitan area (Peri-urban area) and suggest directions for future studies particularly in economic and livelihood for local authorities to develop with.

关键词： System Dynamics Setiu Wetland Minapolita Economic and Livelihood Policy Practice