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Search Results: 1 - 10 of 762 matches for " Norwahida Syazwani Othman "
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Graph Colouring and Clustering Heuristic Approach for Minimizing Examination Duration: A Case Study
Norwahida Syazwani Othman,Faizuniza Mashhod
IBIMA Business Review , 2012,
Abstract: Exam timetable is difficult to be done manually due to several factors such as dual academic calendar, larger student enrolments, constraints among invigilators and limitations of resources. At tertiary education, preparing exam timetable is very critical in order to ensure that all students are able to sit for the exam of every subject that they have registered without any clashing and only sit for one exam at one time. The lecturers who are also the invigilators as well need to be considered as one of the elements in the development of exam timetable as they are required to be in one venue at one time. Therefore, a good time table needs to ensure that the students and invigilators are able to commit their roles accordingly during the exam period. But the main problem is the duration of the exam which will be extended to fulfil all the requirements. This study presents a solution method intended for reducing exam duration in Centre for Foundation Studies and Extension Education (FOSEE), Multimedia University (MMU), Malaysia. The method of solution is using heuristic approaches that include graph colouring, clustering and sequential heuristic. The discussions were focused on constraints among invigilators and the approach is tested on real-world exam timetabling problems.
E-Filing Behaviour among Academics in Perak State in Malaysia  [PDF]
M. Krishna Moorthy, Azni Suhaily Binti Samsuri, Suhaili Binti Mohd Hussin, Maisarah Syazwani Binti Othman, Mahendra Kumar Chelliah
Technology and Investment (TI) , 2014, DOI: 10.4236/ti.2014.52009
Abstract:

Perak State government in Malaysia has been promoting an Internet tax filing called electronic filing as part of its e-government initiative. Starting in year 2006, Malaysia Inland Revenue Board (IRBM) has launched the e-filing method for individual taxpayers and from that point of time, Malaysia’s citizens are provided with the option to choose their tax filing method either in the way of manual tax-filing method or e-filing method. This study focuses on the Perak State academics’ intention and behavior to adopt e-filing tax system. The target population for this study is academic staff in Perak State in Malaysia. 116 usable questionnaires were collected from three public institutions and two private institutions of higher learning in Perak State in Malaysia and the data analyzed through the SPSS. The findings show that perceived use of use, perceived usefulness, perceived security, and perceived credibility do influence the Perak State academic’s e-filing adoption intention. However, perceived service and information quality has not influenced their e-filing adoption intention. This study provides several important implications for building and promoting effective e-filing system by the IRBM.

The Development and Characterization of Zirconia-Silica Sand Nanoparticles Composites  [PDF]
Tahir Ahmad, Othman Mamat
World Journal of Nano Science and Engineering (WJNSE) , 2011, DOI: 10.4236/wjnse.2011.11002
Abstract: The present study aims to develop zirconia-Silica sand nanoparticles composites through powder processing route and to study the physical properties, mechanical properties and microstructure of the composites. Zirconia based silica sand nanoparticles composite with 5, 10, 15 and 20 wt.% were developed through powder processing technique and sintered at 1500 ℃ for two hours. A decreasing trend of green density however an improvement in sintered density was observed. Also the addition of silica sand nanoparticles with 20 wt.% increased the hardness up to 12.45 GPa and microstructures indicated the diffusion mechanism of silica sand nanoparticles into pore sites of the composites.
Corporal Punishment Study: A Case in Malaysia  [PDF]
Narasappa Kumaraswamy, Azizah Othman
Psychology (PSYCH) , 2011, DOI: 10.4236/psych.2011.21004
Abstract: The study investigates the occurrence of childhood corporal punishment at home on a sample of participants who resided in the northeast of Malaysia, Kelantan. The Discipline Questionnaire (DQ) - a 32-item self-report instrument was completed by 196 medical students studying in fourth and fifth year at School of Medical Sciences Universiti Sains Malaysia (USM). The participants were asked about the type, frequency, and severity of parental corporal punishment they remembered to receive at home during childhood, in addition to their attitudes toward corporal punishment on children. Sixty three percent of participants remembered being corporally punished at home, as children. Only 3% of them reported that the punishment reaches an abusive level – which was defined as physical punishment that results in welts, bruises, bone fractures or breaks, or large/deep cuts. Pinching was the most commonly reported types of punishment used at home (35%), followed by slapping on the hand, arm or leg (31%), whipping using flexible material such as leather or rope (23%), and spanking/slapping on the buttocks with open hand (20%). The study indicates that on average the participants had a fairly favorable attitude towards corporal punishment. The findings suggest that majority of parents in Malaysia have been using corporal punishment on their children – primarily of mild types. Generally, the participants have had a fairly favorable attitude towards corporal punishment. Corporal punishment in this context is not perceived as an action of abusing a child, but rather one of many ways to teach the child a lesson in life.
Effect of Conduction Pre-heating in Au-Al Thermosonic Wire Bonding  [PDF]
Gurbinder Singh, Othman Mamat
Journal of Surface Engineered Materials and Advanced Technology (JSEMAT) , 2011, DOI: 10.4236/jsemat.2011.13018
Abstract: This paper presents the recent study by investigating the vital responses of wire bonding with the application of conduction pre-heating. It is observed through literature reviews that, the effect of pre-heating has not been completely explored to enable the successful application of pre-heating during wire bonding. The aim of wire bonding is to form quality and reliable solid-state bonds to interconnect metals such as gold wires to metalized pads deposited on silicon integrated circuits. Typically, there are 3 main wire bonding techniques applied in the industry; Thermo-compression, Ultrasonic and Thermosonic. This experiment utilizes the most common and widely used platform which is thermosonic bonding. This technique is explored with the application of conduction pre-heating along with heat on the bonding site, ultrasonic energy and force on an Au-Al system. Sixteen groups of bonding conditions which include eight hundred data points of shear strength at various temperature settings were compared to establish the relationship between bonding strength and the application of conduction pre-heating. The results of this study will clearly indicate the effects of applied conduction pre-heating towards bonding strength which may further produce a robust wire bonding system.
Simulation Mechanical Properties of Lead Sulfur Selenium under Pressure  [PDF]
Mazin S. Othman
Journal of Modern Physics (JMP) , 2013, DOI: 10.4236/jmp.2013.42026
Abstract:
The elastic properties of lead sulfur selenium are studied using first-principles calculations. The geometry optimized structural parameters for PbS0.5Se0.5 under different pressures are listed. The lattice parameter increase with increasing pressure, but enthalpy is constant. However, parameter B and Y decrease and parameter S increase with increasing pressure. The elastic constants satisfy the traditional mechanical stability conditions for these ternary mixed crystals. The elastic modulus as two functions of pressure from 0 - 10 GPa are obtained. The calculated elastic constants Cij decrease but with different rates under increasing pressure.
Treatment of Chronic Lateral Epicondylitis: Platelet Rich Plasma versus Extra-Corporeal Shock Wave Therapy  [PDF]
Ahmed Mohamed Ahmed Othman
Open Journal of Orthopedics (OJO) , 2014, DOI: 10.4236/ojo.2014.43013
Abstract: Background: Several treatment options have been proposed to treat lateral epicondylitis. Both Platelet rich plasma (PRP) and Extra-corporeal Shock Wave Therapy (ESWT) are new treatment modalities for tendinopathy. Patients and Methods: Thirty seven patients suffering from chronic lateral epicondylitis (tennis elbow) for at least six months were treated in this study. The patients were divided into two treatment groups, the first group including 20 patients treated by ESWT and the second group including 17 patients treated by local injection of platelet-rich plasma. The results were evaluated using the visual analogue scale and the DASH score. Results: In the first group (treated by ESWT), the average follow-up period was 21.55 months. The average VAS improved from 8.2 to 1.95 and the average DASH score improved from 72.25 to 51.7. Moreover, 11 cases were satisfied (55%), 3 cases (15%) were satisfied with reservation and 6 cases (30%) were not satisfied. In the second group (treated by PRP), the average follow-up period was 18.47 months. The average VAS improved from 8.52 to 1.47, the DASH score improved from 72 to 48.23. Concerning patient satisfaction, 13 cases were satisfied (83.33%), 3 cases (10.52%) were satisfied with reservation and 1 case (5.55%) was not satisfied. Conclusion: Platelet rich plasma was proved to achieve superior results when compared to ESWT as regards pain relief, improvement of elbow function and patient satisfaction at follow-up.
Open versus Arthroscopic Treatment of Post-Traumatic Stiff Elbow  [PDF]
Ahmed Mohamed Ahmed Othman
Open Journal of Orthopedics (OJO) , 2014, DOI: 10.4236/ojo.2014.411047
Abstract: Thirty three patients with post-traumatic stiff elbow were divided into two groups. The first group included 18 patients with an average age of 31.05 years treated by open arthrolysis. The second included 15 patients with an average age of 31.66 years treated by arthroscopic method. The results were evaluated using the Mayo clinic score and DASH score for elbow function. In the open group, after an average period of follow-up 19.33 months, the average range of flexion-extension movement improved from 51.11° to 103.94°. The average Mayo clinic score improved from 63.38 to 92.83 and the average DASH score improved from 68.1 to 40.23. There were 13 cases (72.22%) excellent, 4 cases (22.22%) good and 1 case (5.55%) with the poor result. In the arthroscopic group, after an average period of follow-up 17.73 months, the average range of flexion-extension movement improved from 59.46° to 101.53°. The average Mayo clinic score improved from 62.93 to 92.73 and the average DASH score improved from 69.25 to 46.4. There were 10 cases (66.66%) excellent, 3 cases (20%) good and 2 cases (13.33%) with the poor result. Both open and arthro-scopic treatment can be effective in treatment of post-traumatic stiff elbow. Arthroscopic treatment is associated with less post-operative pain and morbidity. However, open treatment provides better range of motion and marked improvement of elbow function.
Percutaneous Endoscopic Lumbar Discectomy versus Conventional Open Discectomy: A Prospective Randomized Comparative Trial  [PDF]
Ahmad Abdalla, Hazem Othman
Open Journal of Modern Neurosurgery (OJMN) , 2019, DOI: 10.4236/ojmn.2019.92010
Abstract: Introduction: The majority of series considered the conventional open discectomy as the gold standard for the treatment of lumbar disc prolapse. Despite of the popularity of the lumbar endoscopic discectomy nowadays, many neurosurgeons still prefer conventional open discectomy. Purpose: Our study has been designed to compare between percutaneous endoscopic lumbar discectomy and conventional open discectomy; regarding surgical results, complications, clinical and functional outcomes. Patients and Methods: This study is a clinical prospective randomized controlled trial conducted upon 30 patients suffering from prolapsed lumbar disc, from December 2016 to May 2018. Those patients were divided randomly into 2 groups, 15 patients each. One group treated by percutaneous endoscopic interlaminar lumbar discectomy (PELD) and the other group treated by conventional open discectomy (COD). Operative time, wound size, Intraoperative blood loss, Intraoperative complications, postoperative hospital stay, Postoperative complication and the results of visual analogue score (VAS) and modified MacNab’s criteria were assessed. Results: This study included 30 patients (18 males and 12 females). The mean age was about 35 years. Although, there was postoperative improvement of the VAS and MacNab’s criteria in the two groups, there was no statistically significant difference between the preoperative and postoperative VAS of low back pain and radicular pain for the two groups in the follow up period. Conclusion: Both techniques give good results for patients; each technique has some advantages over the other.
Does Board of Director’s Characteristics Affect Firm Performance? Evidence from Malaysian Public Listed Companies
Siti Norwahida Shukeri,Ong Wei Shin,Mohd Shahidan Shaari
International Business Research , 2012, DOI: 10.5539/ibr.v5n9p120
Abstract: The aim of this study is to answer the question: “do board characteristics affect firm performance?” There are six board of directors’ characteristics being studied, including managerial ownership, board size, board independence, CEO duality, gender diversity and ethnic diversity. Return on Equity (ROE) is used as a measurement for firm financial performance. There are 300 Malaysian public listed companies being randomly selected from each sector. The results show that board size and ethnic diversity have positive relationship with ROE while board independence has negative relationship. There is no significant relationship between managerial ownership, CEO duality and gender diversity on firm performance. The findings may provide some implications for future research regarding the effectiveness of board of directors towards firm performance.
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