Browsing by Author "Ahmad, R"
Now showing 1 - 9 of 9
Results Per Page
Sort Options
- Some of the metrics are blocked by yourconsent settings
Publication Big Data Emerging Technology: Insights into Innovative Environment for Online Learning Resources(Kassel Univ Press Gmbh, 2018) ;Huda, M ;Maseleno, A ;Atmotiyoso, P ;Siregar, M ;Ahmad, R ;Jasmi, KA ;Muhamad, NHN ;Mustari, MIBasiron, BAttempts to adopt the network data massively from the social media refer to provide the particular means in extracting the value from information space such as message, conversation, transaction and others, where the sources of structured data come from enterprise resources data and sources of unstructured data come from audio and video. It can be achieved to expand the process of extracting the value from social network to pattern the data sources to fulfil the organisation goal. This paper aims to reveal the way of big data approach in extracting data value from data complexity involving variety and velocity into the volume. This study was conducted using contents analysis by reviewing some literatures in peer-reviewed journals, chapters, books and proceedings in developing prototype using data analytics associated from the topic, users and time analytics. The findings reveal that big data emerging technology with analytic process provides particular advantages to transform the pattern of information fitted into the innovative environment of online learning resources (OLR) to enhance in developing the learning resources. Both prototype and model of data extraction value could be enhanced to facilitate the learning environment in supporting implementations with ease and convenience. This study is expected to contribute to improve the learning environment and outcomes with performance and achievement by enhancing students' learning process development to provide online resources in higher education context. - Some of the metrics are blocked by yourconsent settings
Publication Emotional Substrates in Neuroticism: The Reactions to Arousal-evoking Stimuli of Various Strengths(IBN SINA Trust, 2020) ;Yusoff, N ;Reza, F ;Anuar, NNAhmad, RObjective: Neuroticism is a medical condition associated with negative affect and is considered to predispose one to mental disorders. This study examined the effects of arousal-evoking stimuli of various strengths on the severity of neuroticism. Materials and Methods: In the Event Related Potential (ERP)/electroencephalograph (EEG) recording session that was held at the Clinical Neuroscience Laboratory at a local hospital, Electroencephalogram was recorded in 58 participants (N=29 for moderate neuroticism and 29 for mild neuroticism) after they were screened for the severity of the neurotic trait. Universal emotional pictures were chosen randomly from the International Affective Picture System (IAPS) and were used as visual stimuli in the experiment. Visual stimuli were divided into three categories (high, moderate, low) based on the IAPS normative mean values of arousal. Results: The significant interaction effect of P300 latency between neuroticism and arousal strength was found in the mid-frontal region. Meanwhile, independent of neuroticism, the main effects of arousal strength of the P300 (amplitude and latency) and N200 (latency) were observed in the mid-central region. Conclusion: There is a significant interaction between the severity of neuroticism and the emotional arousal strength, thus, points to the implication of the emotion process in the brain rewards system especially among individuals with neuroticism. - Some of the metrics are blocked by yourconsent settings
Publication Emotional Substrates in Neuroticism: The Reactions to Arousal-evoking Stimuli of Various Strengths(Ibn Sina Trust, 2020) ;Yusoff, N ;Reza, F ;Anuar, NNAhmad, RObjective: Neuroticism is a medical condition associated with negative affect and is considered to predispose one to mental disorders. This study examined the effects of arousal-evoking stimuli of various strengths on the severity of neuroticism. Materials and Methods: In the Event Related Potential (ERP)/electroencephalograph (EEG) recording session that was held at the Clinical Neuroscience Laboratory at a local hospital, Electroencephalogram was recorded in 58 participants (N=29 for moderate neuroticism and 29 for mild neuroticism) after they were screened for the severity of the neurotic trait. Universal emotional pictures were chosen randomly from the International Affective Picture System (IAPS) and were used as visual stimuli in the experiment. Visual stimuli were divided into three categories (high, moderate, low) based on the IAPS normative mean values of arousal. Results: The significant interaction effect of P300 latency between neuroticism and arousal strength was found in the mid-frontal region. Meanwhile, independent of neuroticism, the main effects of arousal strength of the P300 (amplitude and latency) and N200 (latency) were observed in the mid-central region. Conclusion: There is a significant interaction between the severity of neuroticism and the emotional arousal strength, thus, points to the implication of the emotion process in the brain rewards system especially among individuals with neuroticism. - Some of the metrics are blocked by yourconsent settings
Publication Fruiting-body-base flour from an oyster mushroom-a waste source of antioxidative flour for developing potential functional cookies and steamed-bun(Amer Inst Mathematical Sciences-Aims, 2018) ;Wan-Mohtar, WAQI ;Mahmud, N ;Supramani, S ;Ahmad, R ;Zain, NAM ;Hassan, NAM ;Peryasamy, JHalim-Lim, SAIn a commercial oyster mushroom farm, fruiting body base (FBB) was not harvested compared to the common cap and stem of the fruiting body parts, and thus remained as waste. In the present study, unused FBB was powdered and subjected to proximate analysis as floured FBB (FFBB). FFBB was found to contain 71.2% carbohydrate, 8.93% moisture, 7.18% fibre, 5.72% ash, 5.57% protein, and 1.4% fat, while raw-FBB (RFBB) contained 7.57% carbohydrate, 84.4% moisture, 5.17% fibre, 5.72% ash, 1.54% protein, and 0.85% fat. The high carbohydrate content of FFBB was subjected to hot-water extraction and yielded 7.40 g of FFBB polysaccharide (FFBBP). Total phenolic content (TPC) of FFBBP contained 1.80 mg gallic acid equivalents (GAE)/g, exhibiting the reducing activity of 1.74 mM Fe(II)/g by ferric reducing antioxidant power assay, and reduced the stable 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonate radical forms at IC50 of 25.08 mg/mL, which was comparable with other parts of oyster mushroom species. Different percentages of FFBB mixtures were utilized in the production of cookies (10% and 20%) and steamed buns (10%, 20% and 30%). Thirty-seven panellists were selected for sensory testing, which showed that 10% of FFBB in a steamed bun was more acceptable than 30% of FFBB, while the overall acceptance of cookies with 10% FBB was insignificant (p > 0.05) but 20% FFBB in cookies was significantly different from control (p < 0.05). This study indicates that potential value of FFBB as an economical antioxidative flour in the development of functional foods. - Some of the metrics are blocked by yourconsent settings
Publication Information Security Risk Assessment Framework for Cloud Computing Environment Using Medical Research Design and Method(Amer Scientific Publishers, 2018) ;Samy, GN ;Shanmugam, B ;Maarop, N ;Magalingam, P ;Perumal, S ;Albakri, SHAhmad, RThe traditional risk assessment methods calculate the risk based on the risk likelihood and the risk impact, which are not suitable to be applied in cloud computing environments. Therefore, this study proposes a framework to assess information security risk by using international risk management standard with adoptions of a medical research design and method. The risk management standard is based on BS. ISO/IEC27005: 2011, which consists of context establishment, risk identification, risk analysis, risk evaluation, risk treatment, monitoring and review, and communication and consultation. Adopting a retrospective cohort study and a method known as Cox Proportional Hazards (PH) Model under survival analysis method will be applied to identify potential information security threats in cloud computing environments. The survival analysis method is used to identify which factors have significant impact and predict the hazard probabilities for selected risk factors in medical field. The proposed framework will be used software as a service model of cloud computing. Therefore, the contribution of this research will be a framework for performing risk analysis studies to identify information security threats in cloud computing environment using medical research design and method. - Some of the metrics are blocked by yourconsent settings
Publication Molecular Characterisation of alpha- and beta-Thalassaemia among Indigenous Senoi Orang Asli Communities in Peninsular Malaysia(Wiley, 2017) ;Koh, DXR ;Sabudin, RZAR ;Yusoff, MM ;Hussin, NH ;Ahmad, R ;Othman, AIsmail, EThalassaemia is a public health problem in Malaysia, with each ethnic group having their own common mutations. However, there is a lack on data on the prevalence and common mutations among the indigenous people. This cross-sectional study was performed to determine the common mutations of - and -thalassaemia among the subethnic groups of Senoi, the largest Orang Asli group in Peninsular Malaysia. Blood samples collected from six Senoi subethnic groups were analysed for full blood count and haemoglobin analysis (HbAn). Samples with abnormal findings were then screened for - and -globin gene mutations. Out of the 752 samples collected, 255 showed abnormal HbAn results, and 122 cases showing abnormal red cell indices with normal HbAn findings were subjected to molecular screening. DNA analysis revealed a mixture of - and -globin gene mutations with 25 concomitant cases. The types of gene abnormalities detected for -thalassaemia were termination codon (T>C) Hb CS ((CS)), Cd59 (G>A) haemoglobin Adana (Hb Adana) ((Cd59)), initiation codon (ATG>A-G) ((IniCd)), two-gene deletion (-(SEA)), and single-gene 3.7-kb deletion (-(3.7)). For -thalassaemia, there were Cd26 (G>A) Hb E ((E)), Cd19 (A>G) Haemoglobin Malay (Hb Malay) ((Cd19)), and IVS 1-5 (G>C) ((IVS 1-5)). - Some of the metrics are blocked by yourconsent settings
Publication Multivariate Survival Analysis for Correlated Node Behavior in MANETS(IEEE, 2014) ;Azni, AH ;Ahmad, RNoh, ZAMThis paper present correlated hazard function in multivariate network survival analysis in MANETS. Correlated hazard function is an extended hazard function in Cox model to capture correlated events. The function takes correlated degree as a covariate to measure the effect of correlated node behavior and describe the relationship between correlated degree and survival times. The covariates analysis shows that the effect of correlated degree is significant in measuring survival analysis in MANETS. - Some of the metrics are blocked by yourconsent settings
Publication Network Survivability Analysis Modeling Approach for MANETS : A Systematic Review(IEEE, 2014) ;Azni, AH ;Ahmad, R ;Noh, ZAM ;Hazwani, FHayaati, NNetwork survivability analysis modeling in MANETs was hardly an issue in the early years of wireless technology because there was no critical network system that depended on wireless technology yet. Today, network survivability analysis is an essential aspect of reliable communication especially in MANETs. Although various methods have been proposed to model network survivability analysis in MANETs, no related review has been published as to date for this topic. Thus, a comprehensive review of this body of work would be beneficial to researchers to have an overview of the current state of research trend in this area. This paper provides a systematic literature review (SLR) of the state of the art approach in modeling network survivability analysis in MANETs. We used studies from a number of relevant article sources, and our results showed the existence of twenty six articles. From this SLR we found that the existing of modeling method is focusing on individual node in which the node is treated as independent event. Furthermore, the analysis also reveals the less popular methods in modeling network survivability analysis are with statistical methods such as regression analysis and survival analysis. The implication of this study is to give a clear direction to future researchers in this area for a better and accurate analysis in measuring network survivability in MANETs. - Some of the metrics are blocked by yourconsent settings
Publication Pellet diameter and morphology of European Ganoderma pfeifferi in a repeated-batch fermentation for exopolysaccharide production(Elsevier Ltd, 2019) ;Supramani, S ;Jailani, N ;Ramarao, K ;Zain, NAM ;Klaus, A ;Ahmad, RWan-Mohtar, WAIThe pellet diameter and morphology of an underutilized European Ganoderma pfeifferi (EGP) mycelium was studied in a repeated-batch fermentation (RBF) for exopolysaccharide (EPS) production. In preliminary fermentation, growth screening was performed for initial pH, glucose concentration, and agitation speed. At 30 degrees C, the favourable conditions for EPS production (0.58 g/L) and EPS productivity (0.058 g/L day(-1)) were 15 g/L glucose, initial pH 6, and 100 rpm, while the highest dry cell weight (DCW; 3.63 g/L) was achieved at 9 g/L glucose, initial pH 4, and 120 rpm. Morphologically verified, large, compact pellets (diameter: 40 mu m < d < 40.67 mu m) were associated with high DCW while small dispersed pellets (diameter: 11.67 mu m < d < 14.67 mu m) were associated with high EPS production. In RBF, EGP mycelium exhibited the ability to self-immobilize and high stability for repeated use with increasing smooth pellet diameter from RBF1 (7.33 mu m < d < 7.67 mu m) to RBF4 (16.67 mu m < d < 18.33 mu m). The fermentation period was subsequently shortened from 48 (batch) to 24 days in four consecutive cycles of RBF, and the productivity of EPS increased from 0.053 g/L day(-1) to 0.108 g/L day(-1). In an FTIR analysis, crude EPS of EGP showed the presence of beta-glucan characteristics at 1075 cm(-1) and 891 cm(-1) wavelengths, similar with European G. lucidum BCCM 31549. In addition, H-1 NMR showed similar beta-glycosidic linkages when compared with laminarin standard. The proposed strategy demonstrated that G. pfeifferi pellet morphology can withstand extended fermentation cycles for efficient EPS production.