155 research outputs found
Persepsi industri hospitaliti terhadap golongan pekerja berkeperluan khas (masalah pendengaran)
Kerjaya merupakan salah satu keperluan bagi setiap manusia samada golongan normal
mahupun golongan berkeperluan khas. Kerjaya merupakan laluan bagi manusia untuk
mencari sumber pendapatan untuk memastikan kelangsungan hidup. Namun, terdapat
isu berkaitan pengangguran terhadap golongan berkeperluan khas. Oleh itu kajian ini
dilaksanakan untuk mengenal pasti persepsi industri hospitaliti terhadap golongan
berkeperluan khas (masalah pendengaran) serta mengenal pasti cabaran yang dihadapi
oleh industri dalam pengambilan pekerja berkeperluan khas (masalah pendengaran).
Selain itu kajian ini juga dijalankan untuk mengenal pasti keperluan kriteria yang
diharapkan oleh industri hospitaliti. Kajian ini melibatkan 28 syarikat di bawah sektor
hospitaliti yang terdapat di sekitar Batu Pahat dan Muar, Johor. Seramai 88 orang
majikan yang terdiri daripada pengurus, penyelia, ketua-ketua bahagian dan pekerja
yang terlibat dengan pekerja berkeperluan khas (masalah pendengaran) adalah
responden dalam kajian ini. Kajian ini menggunakan borang soal selidik sebagai
instrument kajian. Data yang diperoleh dianalisis menggunakan kaedah deskriptif
menggunakan perisian SPSS (Statistic Package for the Social Science) versi 16.0.
Hasil dapatan menunjukkan tahap penerimaan industri hospitaliti terhadap golongan
pekerja berkeperluan khas (masalah pendengaran) berada pada tahap sederhana
Ergogenic, anti-diabetic and antioxidant attributes of selected Malaysian herbs: characterisation of flavonoids and correlation of functional activities
In the present work, aqueous ethanolic (60% ethanol) extracts from selected Malaysian herbs including Murraya koenigii L. Spreng, Lawsonia inermis L., Cosmos caudatus Kunth, Piper betle L., and P. sarmentosum Roxb. were evaluated for their ergogenic, anti-diabetic and antioxidant potentials. Results showed that the analysed herbs had ergogenic property and were able to activate 5'AMP-activated protein kinase (AMPK) in a concentration dependant manner. The highest AMPK activation was exhibited by M. koenigii extract which showed no significant (p > 0.05) difference with green tea (positive control). For anti-diabetic potential, the highest α-glucosidase inhibition was exhibited by M. koenigii extract with IC50 of 43.35 ± 7.5 μg/mL, which was higher than acarbose (positive control). The determinations of free radical scavenging activity and total phenolics content (TPC) indicated that the analysed herbs had good antioxidant activity. However, C. caudatus extract showed superior antioxidant activity with IC50 against free radical and TPC of 21.12 ± 3.20 μg/mL and 221.61 ± 7.49 mg GAE/g, respectively. RP-HPLC analysis established the presence of flavonoids in the herbs wherein L. inermis contained the highest flavonoid (catechin, epicatechin, naringin and rutin) content (668.87 mg/kg of extract). Correlations between the analyses were conducted, and revealed incoherent trends. Overall, M. koenigii was noted to be the most potent herb for enhancement of AMPK activity and α-glucosidase inhibition but exhibited moderate antioxidant activity. These results revealed that the selected herbs could be potential sources of natural ergogenic and anti-diabetic/antioxidant agents due to their rich profile of phenolics. Further analysis in vivo should be carried out to further elucidate the mechanism of actions of these herbs as ergogenic aids and anti-diabetic/antioxidant agents
Integrated control of electrical discharge machining (EDM) using PSoC
Electrical discharge machining (EDM) is one of the earliest non-conventional machining in order to manufacture very accurate 3-D complex components on any electrically conductive materials. In die-sinking EDM, a pulse discharge occurs in a small spark gap between electrically conductive workpiece and electrode in dielectric medium. This paper proposed a new integrated control system using Programmable System-on-Chip (PSoC) for Die-sinking EDM in order to enhance Material Removal Rate (MRR). The MRR result of EDM-PSoC system is higher than EDM-Ben Fleming system due to the effect off high speed processing data analysis using PID algorithm in PSoC microcontroller and leads to improving system efficiency 41%
Antimicrobial activity and bioactive evaluation of Plectranthus amboinicus essential oil
Abstract Plectranthus amboinicus or locally known as bangun
Fluorescence dynamics of graphene quantum dots for detecting lard substance
Graphene Quantum Dots (GQD) is used for detecting lard substance. It is discovered that the fluorescence for a GQD with a size approximately 5nm in size will have a peak at 675nm. Introducing lard substance to the GQD will induce a broad fluorescence spectrum at the range of 415 till 715nm. Higher fluorescence is observed from 760nm till 860nm showing the dynamics fluorescence changes when lard is applied. These fluorescence dynamics when lard is introduced is due to the functional groups of Carbon-Carbon interaction between GQD and lard
Effects of elevated temperature on high performance concrete incorporating of metakaolin and garnet
Durability has become one of the major indicators to dictate a good quality of concrete. Rapid growing in construction leads to the demand of high strength concrete which can bear high stress and high resistance towards any hazard and harsh environment thus providing a safe structure. High performance concrete (HPC) has been identified as one of the advanced types of concrete that can fulfill the criteria. Hence, in this study resistance towards elevated temperature of HPC incorporating 10% of metakaolin as part of cementitious material and 50% of garnet as part of replacement of fine aggregates were investigated. Samples of HPC with metakaolin and garnet (HPCMG) and HPC with metakaolin (HPCM) were exposed to different heating temperature of 200°C, 400°C, 600°C and 800°C for duration of one hour. The changes of physical in color and the appearances of cracks in all samples were closely observed. In addition, compressive strength tests according to BS1881-116:1983 and percentage of weight loss for all the samples were also monitored in this study. Results showed that as the temperature increased, significance losses of compressive strength were detected for both HPCMG and HPCM. At the temperature of 800°C, HPCMG degenerated 86.8% of its strength compared to 71.8% for HPCM. As temperature increased, weight loss of HPCM indicated higher reading compared to HPCMG. Major changes of the physical appearances were also detected in both HPCM and HPCGM samples such as cracks and increment in gap width on the samples. This summarized that HPCM has better fire resistance compared to HPCMG
Enhancing the decolorization of methylene blue using a low-cost super-absorbent aided by response surface methodology
The presence of organic dyes from industrial wastewater can cause pollution and exacerbate environmental problems; therefore, in the present work, activated carbon was synthesized from locally available oil palm trunk (OPT) biomass as a low-cost adsorbent to remove synthetic dye from aqueous media. The physical properties of the synthesized oil palm trunk activated carbon (OPTAC) were analyzed by SEM, FTIR-ATR, and XRD. The concurrent effects of the process variables (adsorbent dosage (g), methylene blue (MB) concentration (mg/L), and contact time (h)) on the MB removal percentage from aqueous solution were studied using a three-factor three-level Box–Behnken design (BBD) of response surface methodology (RSM), followed by the optimization of MB adsorption using OPTAC as the adsorbent. Based on the results of the analysis of variance (ANOVA) for the three parameters considered, adsorbent dosage (X1) is the most crucial parameter, with an F-value of 1857.43, followed by MB concentration (X2) and contact time (X3) with the F-values of 95.60 and 29.48, respectively. Furthermore, the highest MB removal efficiency of 97.9% was achieved at the optimum X1, X2, and X3 of 1.5 g, 200 mg/L, and 2 h, respectivel
Hygiene logistics practices in osman goat farm at kangkar tebrau
Hygiene in food preparation for Muslim consumer is the same as Halal requirements. The contradicting term of halal is haram or non-halal. Halal is associated with the concept of hygiene because of what is permitted in Islam is related with human health (www.hdcglobal.com). As an example, a dead but non-slaughtered animal is normally associated with a disease. Most diseases originated or carried in the animal's blood. Therefore, slaughtering is mandatory to ensure the blood is completely out from the animal's body, thus minimizing the chance of microbial infection. Lack of awareness the hygiene logistics practices in animal farms results in unhealthy and dangerous consumption of meat and animals to be eaten. Thus, this research is trying to study the hygiene logistics practice in Osman Goat Farm at Kangkar Tebrau as one of the largest farm managed by Muslim in Johor. This study uses qualitative method by interviewing the authorized person to ensure that hygiene logistics practiced has been done. Semi structured interview and participation observation has been used as the study instrument to gain data. Case study has been used as the method of analysis by triangulation data between the interview and observations. Interview was conducted with the authorized person such as Mr. Osman who is the director and Mr. Supri who is his supervisor. The study found that Osman Goat Farm has implemented most of the requirement of halal logistics. Hygiene logistics aspects in this study consists of storage, processing, packaging, handling, and transportation. Osman Goat Farm had implied all the hygiene logistics practices measured. Surrounding factors such as the farm location, which is near to schools and residents area allows Osman Goat farm to implements hygiene logistics practices very well. This study recommends an innovation in storage system especially the food container and drink for the goat. The innovation also includes new waste management design system as issued in chapter 4. These solutions can be the benchmark or design of hygiene logistics practices of goat farming industries in Malaysia
Brain-based learning in design and visual arts education: a bibliometric assessment of Scopus indexed literature [version 3; peer review: 2 approved, 1 not approved]
Background: This study aims to critically review, quantify, and assess research outcomes on brain-based learning with an evidence-based study on Scopus indexed literature, with a focus to understand the evolution structure and growth, detect trends, subject development, and most importantly, identify the gaps in the published body of literature that relates brain-based learning to design and visual arts education. Methods: Various scientometric tools were used to map, visualize, and analyze 186 research publications, indexed in Scopus in a twenty-year timespan ‘2001-2021’. Annual publication trends, relevant sources, prolific authors, authorship patterns, productive organizations and countries, funding agencies, keyword co-occurrence analysis, and thematic evolution mapping on brain-based learning publications were examined in this study. Results: Despite the significance to apply brain-based learning strategies in design and visual arts education to boost students’ knowledge and creative skills, the findings show a decline in quantities and growth patterns in brain-based learning research directed towards design disciplines in the past twenty years. Among the identified (186) documents published in (128) sources, with (1013) citations, the study detected only (57) research (30%) that were related to ‘design education,’ including those focusing on ‘instructional design, ‘and ‘syllabus design’ whereas only (3) articles were in ‘design and visual arts’ disciplines. Conclusion: These rather small numbers reflect the big gap in the current body of literature that associates brain-based learning with creativity-based disciplines, specifically in design and visual arts education. This infers the necessity to direct the attention of academics, researchers, and educationalists in the fields of design and arts towards brain-based learning applications, research and pedagogy
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