Fatin Amirah Ahmad Shukri, Fazilatulaili Ali, Asniah Alias, Nor Ain Azeany Mohd Nasir
Academic staff is one of the backbones of any educational institution and is responsible for the quality of students produced. Assessment of quality teaching has always been an endless debate within institutions. Research towards better teaching assessment on various criteria has been proposed. In past studies, teaching performance of academic staff was mostly evaluated based on only single numerical value, i.e. rating. Various studies have suggested different criteria on how to assess teaching performance. Due to the subjective nature of the students’ evaluation, the single rating, i.e. 1 to 5 score (very low to very high, respectively) achieved by academic staff are very general and lack accuracy. This research paper will venture into the teaching evaluation using Fuzzy Analytical Hierarchy Process (Fuzzy AHP) from the perspective of subject experts. The study will incorporate three main criteria for evaluating teaching quality, i.e. staff personal traits, knowledge transfer, and knowledge evaluation. It is found that speech culture (0.149) is deemed as the priority among other teaching quality criteria assessed.
Fadhlina Che Ros, Shahrul Izwan Ahmad, Fadhlul Wafi Badrudin, Siti Hasnawati Jamal, Norli Abdullah, Norhana Abdul Halim
This paper reports on the newly found ferroelectric material, Ag2Nb4O11 ceramics synthesised using solid state reaction and characterised its properties using X-ray powder diffraction, ferroelectric test and impedance spectroscopy. However, the synthesis of phase-pure Ag2Nb4O11 ceramics was unsuccessful due the presence of other phases such as AgNbO3, Ag metal and un-reacted Nb2O5 raw material. The inhomogeneity of the sample was clearly seen in impedance measurement which showed electrical inhomogeneity of bulk and grain boundary capacitances. Difficulties in obtaining phase-pure Ag2Nb4O11 ceramics has motivated an investigation on the purity and thermal stability of Ag2O raw material. X-ray diffraction patterns showed that Ag2Nb4O11 consist of Ag2Nb4O11, AgNbO3, Ag metal and un-reacted raw material. Studies on Ag2O raw material was carried out by heating and weighing it after each different temperature. Weight loss observed at temperatures 120oC, 270oC and 400oC correspond to the loss of water and the decomposition of Ag2O to Ag metal. In this study, the Ag2O used was mostly contained Ag metal than the Ag2O. The instability nature of Ag2O at high temperature may contribute to the difficulties in obtaining phase pure Ag2Nb4O11 product.
Chew Sue Ping, Anis Shahida Niza Mokhtar, Chai Zhi Ren, Wan Ariff Fadhil Wan Abdullah, Shee Hui Chien, Tee Kai Wen, Muhd Asran Turan
Fire accidents due to damaged wiring cables have claimed many buildings and lives. Refrigerant leakage might cause fire and it is poisonous if inhaled in large amount. Regular inspection and maintenance works are compulsory to have early detection to prevent such tragedies. However, the inspection works are tedious and incurring ineffective costs. In this paper, we present a robot CABtec with artificial intelligence capability to conduct close range inspection and detection missions in wiring systems of buildings. This robot will continuously navigate the entire area for damaged cables and gas leakages. If any fault is detected, CABtec is able to conduct thorough inspection suing multi-sensing feature. Users can then utilise the front robot arm to have a closer inspection on the suspected faults. Should any damages to be found, technicians will have to carry out maintenance job using the GPS location sent by the robot as a guide.
Ahmad Nazren Hakimi Ahmad Nasir, Suzaimah Ramli, Muslihah Wook, Nor Afiza Mat Razali, Norulzahrah Mohd Zainuddin
The ability to connect people around the world and share videos, photos and communications has made online social media (OSM) popular. Despite much of literature available in this field, there is still lack of study focusing on the creation of fake profile in the OSM. In fact, there has been relatively little effort aimed at solving fake profile features using classification algorithm. For these reasons, Support Vector Machine (SVM) classifier was employed to classify the novel features that had been created in the fake profile particularly among Facebook users’ account. The study begins with the data collection process, data pre-processing, evaluation, testing and lastly obtaining the result. The findings have revealed that the SVM classifier able to predict the fake profile with high Classifying Accuracy (CA) and Area Under Curve (AUC). Ultimately, this finding will provide a new endeavour for countermeasure and protection of OSM users.
Nik Noorul Shakira Mohamed Shakrin, Nor Syaza Syahirah Amat Junaidi, Mohammad Fahmi Daman Huri, Frhana Rahmat, Nur Adnin Ahmad, Ahmad Zakuan Kamarudin, Mohd Nasir Mohd Desa
Background: Staphylococcus aureus is a human pathogen causing a variety of diseases ranging from superficial skin and soft-tissue infections to life-threatening infections. Nowadays, the treatment has become complicated due to the emergence of methicillin-resistant S. aureus (MRSA). It is an established pathogen that causes hospital- and community-acquired infections worldwide. This study was a preliminary retrospective study involving S. aureus clinical isolates from Hospital Angkatan Tentera Tuanku Mizan (HATTM) for a period of 6 months (October 2018 until March 2019). Objectives: The study was conducted to determine the S. aureus antibiotic susceptibility profiles and its association with types of infection, gender, wards, age of patients and types of specimens. Methods: Standard bacteriological method was used for S. aureus isolation from various clinical specimens including blood, urine, pus and wound, eye, throat, nasal, pericardial fluid, tracheal aspirate, high vagina swab (HVS), bronchial alveolar lavage (BAL) and tissue. Kirby-Bauer disc diffusion method was utilized for antibiotic susceptibility profiles determination. Results: Ninety-five S. aureus strains were isolated from 3571 specimens. Twenty-six of the isolates (27%) was identified as MRSA and 69 (73%) was identified as methicillin-sensitive S. aureus (MSSA). Among the MRSA, 4 isolates were hospital-acquired MRSA (HA-MRSA) and the rest were community-acquired MRSA (CA-MRSA). There was a statistically significant association between isolation of MRSA with age of patient as well as types of infection or origin of the MRSA (p<0.05). Only 42 (44.2%) of the S. aureus isolates were fully susceptible to all antibiotics. Almost half isolates (n=46, 48.4%) were resistant to at least two antibiotics and seven (7.4%) isolates were resistant to one type of antibiotic only. Conclusions: None of the isolate showed reduced susceptibility nor resistant to vancomycin. Future study with a larger sample size using a wider study period needs to be done to confirm that vancomycin-resistant S. aureus has not yet been established in HATTM.
Tengku Natasha Eleena Tengku Ahmad Noor, Amaradran Dass, Liana Ma Abdullah
BACKGROUND Foreign body impaction in the oral cavity either due to traumatic injury or iatrogenically is not uncommon. Most commonly encountered iatrogenic foreign bodies is restorative materials such as amalgam, obturation materials, broken instruments and needles. Majority of foreign bodies are impacted in tonsils, base of tongue, maxillary sinus and vallecula. However, foreign bodies impaction in the mobile tongue is rare. We present a case of unusual foreign body impaction on the right lateral border of tongue appeared as bluish mass. A 40-year-old female military personnel came to Oral and Maxillofacial Surgery Department of 94 Armed Forces Hospital Terendak Camp complaining of bluish, painless mass on the right side of her tongue for 4 years. Excisional biopsy has been done and histopathological examination reveals foreign body impaction, likely amalgam tattoo. Amalgam tattoo can sometimes be confused with other foreign body pigmentations, being then biopsied. Once amalgam tattoos have been established, the removal of lesions is not necessary, except for esthetic reasons.
Hasif Yahaya, Gunasilan Manar
The integrity of the aircraft structure after a permanent repair requires thorough engineering analysis. In this study, the aircraft’s defective Bulkhead was damaged due to heat exposure and repaired with a patching technique known as a bulkhead patch repair. The study aimed to analyse the repair carried out using numerical calculation and finite element analysis. The first result of the numerical calculation shows that the repair part (stainless steel) will restore the original part (AA7050) strength capability. The second result from the LS-Dyna analysis shows that heat damage had caused the material (AA7050) strength to deteriorate significantly. The final loads testing using LS-Dyna analysis on components shows the patch repair scheme conducted was capable of strengthening the damaged part by transferring the applied loads to repair part. The outcome of this study justified that for better maintenance action (structural integrity consideration), the damaged Y453 Bulkhead needed to be replaced instead of conducting permanent repair.
Mohd Nor Faiz Norrrahim, Noor Azilah Mohd Kasim, Victor Feizal Knight, Nurjahirah Janudin, Tengku Arisyah Tengku Yasim-Anuar, Norhana Abdul Halim, Noor Aisyah Ahmad Shah, Keat Khim Ong, Siti Aminah Mohd Noor, Siti Hasnawati Jamal, Muhammad Syukri Mohamad Misenan, Wan Md Zin Wan Yunus
Cellulose nanofiber (CNF) has been recognized as a new family of sustainable nanomaterials with significant mechanical, colloidal, low density, renewable and biodegradable properties. These properties make CNF a promising material either as an additive or primary material for the development of various applications such as for packaging, coatings, adsorbent, papermaking, biomedicine, cosmetic and automotive industries. Prior to CNF production, cellulose has to be isolated from various sources of lignocellulosic biomass such as oil palm, bamboo, flax bast, hemp, kraft pulp, and rutabagas. The isolated cellulose then can be nanofibrillated into CNF using several nanofibrillation treatments. However, the nanofibrillation treatment is one of the major factors that can influence the final characteristics of CNF. The selection of nanofibrillation treatment is important as each treatment produces CNF with different properties especially in terms of diameter sizes, lengths, thermal, crystalline and mechanical properties. The CNF properties have to comply with the requirement of the targeted application, as different applications require different specifications of CNF. Other external factors may also influence the properties of CNF. Hence, this review focused on discussing the current CNF production treatment as well as factors that may influence the nanofibrillation process of CNF production.