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Health Facilities Affected by Flood Simulation to a District in Malaysia  [PDF]
Hazrin Hasim, Tahir Aris, Fadhli Yusof
Journal of Analytical Sciences, Methods and Instrumentation (JASMI) , 2014, DOI: 10.4236/jasmi.2014.44016
Abstract: Objective: The Ministry of Health Malaysia is developing a GIS database of health facilities in the country with the main aim to assist in the planning and development of the services, and in allocation of resources. Methodology: Apart from coordinates of the facilities, other digital information such as states and districts boundaries, main road networks and river were obtained from MacGDI, a centre responsible to manage geospatial data infrastructure in Malaysia. In assisting the Ministry of Health in its planning, one of the analyses that were conducted was a flood simulation analysis in a district in a coastal area of Peninsular Malaysia. This was done following a possibility that a tropical storm “Sonamu” would happen in that area. The objective was to identify health facilities that would be affected if a flood were to happen in the district and finally to assist the Ministry of Health in their emergency plan. Data on contour was obtain from a relevant government agency and was also mapped digitally. Results: The results were showing that with one metre depth of flood, more than half of the facilities would be affected and about two third of the facilities would be affected if the flood level rises to 2.5 metres. Conclusion: Application of GIS is very useful for the health sector in planning of facing an environmental related disaster.
Deciphering the Risk Factors of Autism: Are We There Yet?  [PDF]
Rasheeba Nizam, Suad Al Fadhli
Journal of Biosciences and Medicines (JBM) , 2016, DOI: 10.4236/jbm.2016.410007
Abstract: Background: Autism represents a group of developmental disorder that pose a major challenge to world-wide societies and healthcare providers with limited diagnostics and medical cure. It is widely been considered as a mental disorder characterized by speech deficit and repetitive behavior. The presumed etiology of autism involves genetic, immunologic, intestinal and synaptic irregularities, aside from environmental toxicities. Yet, the prospective factor that triggers or predominates autism remains barely understood. Objective: Herein we aim to review the literature to identify the risk factors associated with the development of autism and the need to investigate the underlying pathological events. Results: Genetic factors have been widely investigated in autism for its role in inflammation, neuronal function, metabolism and detoxification. It’s assumed to be negatively impacted by heavy metals, allergens, infectious agents and environmental pollutants. Considering the fact that, these elements individually does not make up autism, one would expect a complex interplay of neuro inflammatory and gastrointestinal system in the pathophysiology of the disease. Gut-brain axis may serve as a potential pathological link representing the plethora of mechanistic events involved in the development of autism. Abnormal activation of mast and neuro glial cells may lead to deregulated expression of cytokines and neuroactive compounds, which may disrupt the blood brain barrier permeability leading to inflammation. Alternatively it may also interfere with intestinal permeability, gut physiology, microbial composition and related metabolites. Conclusion: A glance through the literature indicates the likelihood of genetic variations and environmental factors in triggering a cascade of inflammatory events leading to the development of autism. Though relatively little information is known regarding the factors that initiate the onset and the progression of the disease; the rising prevalence of autism across the globe alarms us towards a better know-how of the disease and the shortfalls in disease treatment and management.
Versatile use of vacuum-assisted healing in fifty patients
Al Fadhli Ahmad,Alexander George,Kanjoor James
Indian Journal of Plastic Surgery , 2009,
Abstract: Context: Wound management can often be a challenging experience, especially in the presence of diabetes mellitus, vascular or immunological compromise. While no single technique can be considered by itself to be ideal, vacuum-assisted healing, which is a recent innovation, is fast becoming a necessary addition as adjuvant therapy to hasten wound healing. Aims: To determine the efficacy of vacuum-assisted healing. Settings and Design: Plastic surgery centre. Ministry of Health Hospital, Kuwait. Materials and Methods: Patients from Kuwait in a wide variety of clinical situations were chosen for study: Patients (n=50) were classified by diagnosis: Group 1: pressure sore- sacral (n= 3), trochanteric (n=6), ischial (n= 2); Group 2: ulcers (n= 11); Group 3: traumatic soft tissue wounds (n =15); Group 4: extensive tissue loss from the abdominal wall perineum, thigh and axilla (n =5); Group 5: sternal dehiscence wounds (n =4) and Group 6: wounds from flap necrosis (n =4). All wounds were subjected to vacuum by wall unit or portable unit, using pressure of 100-125 mm - continuous or intermittent. Closure of wounds, significant reduction in size and refusal by patient for continuation of vacuum-assisted closure therapy were end points of vacuum application. Results: Sixteen per cent of patients showed complete healing of the wound. Seventy per cent of patients showed 20-78% reduction in wound size. In 14% of patients treatment had to be discontinued. All patients showed improvement in granulation tissue and reduction in bacterial isolates and tissue oedema. Conclusions: The application of subatmospheric pressure or negative pressure promotes healing in a wide range of clinical settings and is an advanced wound healing therapy that can optimize patient care, promote rapid wound healing and help manage costs. It may be used in most instances in both hospital and community settings.
Tidally induced cross – shore sand – mud transport and long-term bed-profile evolution
Mohammad Fadhli AHMAD a, Ping DONG b
Journal of Sustainability Science and Management , 2009,
Abstract: A one-dimensional numerical model based on the shallow-water equations, suspended-sediment transport formulae and bed-material conservation equation was developed in order to study the morphological behaviour of idealised hump bed under cross-shore tidal current. A series of tests were carried out for some benchmark problems, such as wave propagation and hump morphodynamics, to validate the numerical scheme. The system of hydrodynamic equations was solved using the finite-volume numerical scheme associated with approximate Roe’s Riemann solver, a data-reconstruction and slope limiter. Hump beds consisting of sand/mud mixtures were examined. It was found that the predicted morphological behaviours of the hump beds under the cross-shore tidal current for a five year period show quite similar trends and the height of hump-profiles is reduced at the top and increased at both sides. Moreover, sand content of 40 percent produces the highest peak of hump-bed profile. This study shows that the amount of decreasing and increasing of bed-profile depends on the critical shear-stress and quantity of sand and mud in the sediments fraction.
Spatial patterns of health clinic in Malaysia  [PDF]
H. Hazrin, Y. Fadhli, A. Tahir, J. Safurah, M. N. Kamaliah, M. Y. Noraini
Health (Health) , 2013, DOI: 10.4236/health.2013.512287

Background: This manuscript aimed to map the spatial distributions of health clinics for public and private sectors in Malaysia. It would assist the stakeholders and responsible authorities in the planning for health service delivery. Methods: Data related to health clinic were gathered from stakeholders. The location of health facilities was geo-coded using a Global Positioning System (GPS) handheld. The average nearest neighbour was used to identify whether health clinics were spatially clustered or dispersed. Hot spot analysis was used to assess high density of health clinics to population ratio and average distance of health clinics distribution. A Geographically Weighted Regression (GWR) was used to analyse the requirement of health clinic in a sub-district based on population density and number of health clinics with significant level (p < 0.001). Results: The results of the average nearest neighbour analysis revealed that the distribution of public health clinics was dispersed (p < 0.001) with z-scores 3.95 while the distribution of private clinics was clustered (p < 0.001) with z-score ?29.26. Several locations especially urban area was also identified as high density in the sub-district. Conclusions: There is a significant difference in the spatial pattern of public health clinics and private clinics in Malaysia. The information can assist stakeholder and responsible authorities in planning health service delivery.


Analysis of a Dengue Disease Transmission Model without Immunity
Yusof Yaacob
Matematika , 2007,
Abstract: A dengue disease transmission model by Esteva & Vargas assumes that once a person recovers from the disease he or she will not be reinfected by the disease. However recovering from one of the four types of virus will not guarantee that a person is immuned to the other types. Hence it is reasonable to assume that the immune subpopulation is negligible. Consequently the model is reduced to a two-dimensional planar system. In this model, the endemic state is stable if the basic reproductive number of the disease is greater than one, and this result is similar to the result of the transmission model with immunity. For a relatively small series of outbreaks of the disease in population sufficiently large for the number of susceptible to remain effectively constant, the model is reduced to a population model for the group of infectives. Taking the incubation period into consideration, the model without immunity gives rise to a two-dimensional delay differential equations. The presence of the delay seems to destabilise the dynamics.
Food Preferences of Seladang (Bos gaurus hubbackki) in Ulu Lepar, Pahang, Peninsular Malaysia
Ebil Yusof
Journal of Sustainable Development , 2009, DOI: 10.5539/jsd.v2n3p201
Abstract: Seladang food preferences primarily depended on the habitat types within their home range. Shrubs and grasses were their main food sources. The types of food species preferred by seladang in each habitat types were unknown. In this study, the food species were identified and classified according to the intensity of browsing and grazing capacity of seladang within each habitat type such as in the primary forests, secondary forests and agricultural areas. Study plots and sub-plots were selected based on feeding habit and footprint signs. The results of this study found that 17 species of shrubs and 6 species of grasses were preferred by seladang. S. acuminata (7.95%) was the most preferable species of shrubs in the primary forest, Melastoma malabathricum (10.42%) in the secondary forest and Erythrina variegata (18.56%) in the agriculture area. The amount of grass species eaten by seladang is not significantly different but Imperata cylindrica was grazed in the primary forest compared to Paspalum conjugatum in the secondary forest and Paspalum vaginatum in agricultural area.
Support Vector Machine-Based Fault Diagnosis of Power Transformer Using k Nearest-Neighbor Imputed DGA Dataset  [PDF]
Zahriah Binti Sahri, Rubiyah Binti Yusof
Journal of Computer and Communications (JCC) , 2014, DOI: 10.4236/jcc.2014.29004

Missing values are prevalent in real-world datasets and they may reduce predictive performance of a learning algorithm. Dissolved Gas Analysis (DGA), one of the most deployable methods for detecting and predicting incipient faults in power transformers is one of the casualties. Thus, this paper proposes filling-in the missing values found in a DGA dataset using the k-nearest neighbor imputation method with two different distance metrics: Euclidean and Cityblock. Thereafter, using these imputed datasets as inputs, this study applies Support Vector Machine (SVM) to built models which are used to classify transformer faults. Experimental results are provided to show the effectiveness of the proposed approach.

Quality of Intellectual Capital and Human Resources Disclosure on the Firm Valuation  [PDF]
Abdolreza Ghasempour, Mohd Atef Md Yusof
Open Journal of Accounting (OJAcct) , 2014, DOI: 10.4236/ojacct.2014.32007
Abstract: Recent tendency of businesses towards voluntary disclosure has improved the quality of financial reporting. High-quality financial reporting helps users of financial information trust business, and thus, creates value for the business. The present study concerned itself with the voluntary reporting of intellectual capital and knowledge assets. Companies with large investments on knowledge assets, intellectual capital, and human resources, have managed to create great competitive advantage. The population of the present study was composed of 65 companies listed on Tehran Stock Exchange in the period from 2005 to 2012. The hypothesis testing results showed that voluntary disclosure of intellectual capital and human resources information had a significant and positive impact firm value, with a one year lapse. This is an indication of the importance of the disclosure of such information for financial statements users.
Poly(Acrylamide-Co-Acrylic Acid)-Zinc Acetate Polymer Electrolytes: Studies Based on Structural and Morphology and Electrical Spectroscopy  [PDF]
Mohd Faiz Hassan, Siti Zulaikha Mohd Yusof
Microscopy Research (MR) , 2014, DOI: 10.4236/mr.2014.22005

Solid polymer electrolytes (SPEs) of polyacrylamide-co-acrylic acid (PAA) as the polymer host and zinc acetate (ZnA) as an ionic dopant were prepared using a single solvent by the solution casting technique. The amorphous and crystalline structures of film were investigated by X-ray diffraction (XRD). The surface morphology of samples was examined by scanning electron microscopy (SEM). The composition and complex formation of films were characterized by Fourier transform infrared (FTIR) spectroscopy. The conductivity of the PAA-ZnA films was determined by electrochemical impedance spectroscopy. According to the XRD and FTIR analyses, all electrolyte films were in amorphous state and the existence of interaction between Zn2+ cations and the PAA structure confirms that the film was successfully prepared. The SEM observations reveal that the electrolyte films appeared to be rough and flat with irregularly shaped surfaces. The highest ionic conductivity (σ) of 1.82 × 10-5 Scm-1 was achieved at room temperature (303 K) for the sample containing 10 wt % ZnA.

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