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Fulltext An approach for Web service selection based on confidence level of decision maker

Khezrian M, Jahan A, Kadir WM, Ibrahim S

PLoS One, 2014;9(6):e97831.
PMID: 24897426 DOI: 10.1371/journal.pone.0097831

Web services today are among the most widely used groups for Service Oriented Architecture (SOA). Service selection is one of the most significant current discussions in SOA, which evaluates discovered services and chooses the best candidate from them. Although a majority of service selection techniques apply Quality of Service (QoS), the behaviour of QoS-based service selection leads to service selection problems in Multi-Criteria Decision Making (MCDM). In the existing works, the confidence level of decision makers is neglected and does not consider their expertise in assessing Web services. In this paper, we employ the VIKOR (VIšekriterijumskoKOmpromisnoRangiranje) method, which is absent in the literature for service selection, but is well-known in other research. We propose a QoS-based approach that deals with service selection by applying VIKOR with improvement of features. This research determines the weights of criteria based on user preference and accounts for the confidence level of decision makers. The proposed approach is illustrated by an example in order to demonstrate and validate the model. The results of this research may facilitate service consumers to attain a more efficient decision when selecting the appropriate service.
Through-knee amputation for a patient with proximal femur focal deficiency and tibial hemimelia: surgical anatomy and clinical implications

Lloyd S, Rashid AH, Das S, Ibrahim S

Anat Sci Int, 2014 Mar;89(2):122-5.
PMID: 24158808 DOI: 10.1007/s12565-013-0211-0

Tibial hemimelia is a rare anomaly of unknown etiology. This condition can occur sporadically or may have a familial inheritance. It is characterized by deficiency of the tibia with a relatively intact fibula. The anomaly may be unilateral or bilateral. We report a case of a 2-year-old girl who presented with right lower limb deformity since birth. She was diagnosed with proximal femur focal deficiency with absence of the ipsilateral tibia. She presented with a shorter right lower limb and a deformed foot. She was treated with a through-knee amputation. Anatomical dissection of the amputated limb was carried out to verify the anomalies. The dissection showed that the distal phalanx of the great toe was trifid. The anatomical and clinical significance of this interesting case is discussed.
Fulltext Perceived physical activity barriers related to body weight status and sociodemographic factors among Malaysian men in Klang Valley

Ibrahim S, Karim NA, Oon NL, Ngah WZ

BMC Public Health, 2013;13:275.
PMID: 23530696 DOI: 10.1186/1471-2458-13-275

Physical inactivity has been acknowledged as a public health issue and has received increasing attention in recent years. This cross-sectional study was conducted to determine the barriers to physical activity among Malaysian men. These barriers were analyzed with regards to sociodemographic factors, physical activity level, BMI and waist circumference.
Fulltext NOMID: the radiographic and MRI features and review of literature

Zaki FM, Sridharan R, Pei TS, Ibrahim S, Ping TS

J Radiol Case Rep, 2012 Mar;6(3):1-8.
PMID: 22690285 DOI: 10.3941/jrcr.v6i3.745

Neonatal onset multisystem inflammatory disease (NOMID) is a rare autoinflammatory disorder, which manifests early in infancy. We describe a case of a 10-year-old boy who has been unwell since infancy. He presented with urticarial rash, intermittent fever and hepatosplenomegaly followed by progressive arthropathy. His joint symptoms started at two years of age, which progressively involved multiple joints, resulting in bone and joint deformities. A series of joint radiographs demonstrated bizarre enlarging physeal mass with heterogenous calcification. Magnetic resonance imaging (MRI) of the involved right ankle and knee showed characteristic thickened and calcified physeal lesions, which enhanced post-gadolinium. This debilitating disease is also known to involve the central nervous system and eyes. This case report aims to highlight the conventional radiographic and magnetic resonance imaging (MRI) findings of this physeal abnormality in NOMID syndrome.
Congenital pseudoarthrosis of the tibia: healing by lengthening over a rod without compression of the nonunion. A preliminary report

Muhammad Abdul Jamil MK, Abdul Rashid AH, Ibrahim S

J Pediatr Orthop B, 2013 May;22(3):207-12.
PMID: 22182834 DOI: 10.1097/BPB.0b013e32834ecc01

This preliminary report is on two patients with congenital pseudoarthrosis of the tibia who had a persistent nonunion following intramedullary rodding and bone grafting. We do not advocate repeated surgery to achieve union. When limb length discrepancy becomes greater than 5 cm, we proceeded with an Ilizarov procedure with the primary aim of equalizing limb length rather than achieving union. Healing of the pseudoarthrosis occurred in both patients after lengthening over the intramedullary rod without compression of the nonunion site. We believe that union occurs because of hyperaemia during the lengthening. This approach minimizes the repeated surgeries that are usually needed and thus ensures a more normal childhood without frequent hospitalizations.
Enhanced magnetic separation and photocatalytic activity of nitrogen doped titania photocatalyst supported on strontium ferrite

Abd Aziz A, Yong KS, Ibrahim S, Pichiah S

J Hazard Mater, 2012 Jan 15;199-200:143-50.
PMID: 22100220 DOI: 10.1016/j.jhazmat.2011.10.069

An enhanced ferromagnetic property, visible light active TiO(2) photocatalyst was successfully synthesized by supporting strontium ferrite (SrFe(12)O(19)) onto TiO(2) doped with nitrogen (N) and compared with N-doped TiO(2). The synthesized catalysts were further characterized with X-ray diffraction (XRD), transmission electron microscope (TEM), energy dispersive X-ray spectroscopy (EDS), BET surface area analysis, vibrating sample magnetometer (VSM), X-ray photon spectroscopy (XPS) and visible light spectroscopy analysis for their respective properties. The XRD and EDS revealed the structural and inorganic composition of N-TiO(2) supported on SrFe(12)O(19). The supported N-TiO(2) exhibited a strong ferromagnetic property with tremendous stability against magnetic property losses. It also resulted in reduced band gap (2.8 eV) and better visible light absorption between 400 and 800 nm compared to N-doped TiO(2). The photocatalytic activity was investigated with a recalcitrant phenolic compound namely 2,4-dichlorophenol (2,4-DCP) as a model pollutant under direct bright and diffuse sunlight exposure. A complete degradation of 2,4-DCP was achieved with an initial concentration of 50mg/L for both photocatalysts in 180 min and 270 min respectively under bright sunlight. Similarly the diffuse sunlight study resulted in complete degradation for supported N-TiO(2) and >85% degradation N-TiO(2), respectively. Finally the supported photocatalyst was separated under permanent magnetic field with a mass recovery ≈ 98% for further reuse.
A rare case of diplopodia and syndactyly: anatomical and surgical considerations

Kadir KH, Abdul Rashid AH, Das S, Ibrahim S

J Foot Ankle Surg, 2011 Mar-Apr;50(2):252-6.
PMID: 21354013 DOI: 10.1053/j.jfas.2010.10.017

Diplopodia is a rare congenital disorder that has not been extensively discussed in textbooks, and case reports appear to be the main source of information. Although the exact cause of diplopodia remains unknown, the presence of extra digits as well as metatarsals and tarsals allows it to be differentiated from pedal polydactyly. Syndactyly refers to the congenital fusion of the digits. Concomitant bilateral syndactyly and diplopodia is extremely unusual, and in this report we describe a case of right diplopodia and left polydactyly combined with bilateral manual syndactyly in a 15-year-old girl who was ultimately treated with through-the-knee amputation. Radiological examination of the right leg revealed tibial hypoplasia and the right foot displayed 8 digits with corresponding metatarsals and tarsals, whereas the left leg revealed 2 extra digits on the medial aspect of the foot with corresponding metatarsal and tarsal bones. Anatomical dissection of the right foot revealed that it was divided into halves consisting of 8 toes with corresponding metatarsals and tarsals, as well as tibial hypoplasia and absence of the great toe. Diplopodia associated with tibial hypoplasia and syndactyly can be treated surgically, and the present case report details the clinical, radiological, and anatomical elements of this rare deformity.
An elbow dislocation in a child with missed medial epicondyle fracture and late ulnar nerve palsy

Haflah NH, Ibrahim S, Sapuan J, Abdullah S

J Pediatr Orthop B, 2010 Sep;19(5):459-61.
PMID: 20555271 DOI: 10.1097/BPB.0b013e32833b6032

Elbow dislocations associated with a medial epicondyle fracture and ulnar nerve palsy are uncommon injuries. We present the case of an 11-year-old girl with an elbow dislocation treated by closed manual reduction. The medial epicondyle fracture was missed initially until she developed an ulnar nerve palsy 2 months later. Intraoperatively we discovered the bony epicondyle piercing the joint capsule and compressing the ulnar nerve. Removal of the bony fragment relieved her symptoms and she returned to normal activities at 1 year follow-up. We would like to highlight this rare occurrence and present the detailed history and management of this case.
In vitro differences of hydroxyapatite from different resources in simulated body fluid

Hashim N, Sabudin S, Ibrahim S, Zin NM, Bakar SH, Fazan F

Med J Malaysia, 2004 May;59 Suppl B:103-4.
PMID: 15468839

Hydroxyapatite (HA; Ca10(PO4)6(OH)2), is one of the significant implant materials used in Orthopaedics and Dental applications. However, synthetically produced HA may not be stable under ionic environment, which it will unavoidably encounter during its applications. In this paper, the in vitro effects of three HA materials derived from different resources, i.e. commercial HA (HAC), synthesised HA from pure chemicals (HAS) and synthesised HA from kapur sireh; derived traditionally from natural limestone (HAK), were studied. The HA disc samples were prepared and immersed in simulated body fluid (SBF) for 31-day period. The evaluation conducted focuses on the changes of the pH and the Calcium ion (Ca-ion) and Phosphate ion (P-ion) concentrations in the SBF solution, as well as the XRD and SEM data representing the reactions on the HA materials. From the XRD, it was found that HAK has the smallest crystallite sizes, which in turn affect the pH of the SBF during immersion. The Ca and P-ion concentrations generally decrease over time at different rates for different HA. Upon 1-day immersion in SBF, apatite growth was observed onto all three surfaces, which became more pronounced after 3-day immersion. However, the appetites formed were observed to be different in shapes and sizes. The reasons for the difference in the apatite-crystals and their subsequent effects on cells are still being investigated.
Fulltext Palladium nanoparticles anchored to anatase TiO2 for enhanced surface plasmon resonance-stimulated, visible-light-driven photocatalytic activity

Leong KH, Chu HY, Ibrahim S, Saravanan P

Beilstein J Nanotechnol, 2015;6:428-37.
PMID: 25821683 DOI: 10.3762/bjnano.6.43

Freely assembled palladium nanoparticles (Pd NPs) on titania (TiO2) nano photocatalysts were successfully synthesized through a photodeposition method using natural sunlight. This synthesized heterogeneous photocatalyst (Pd/TiO2) was characterized through field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), BET surface area, UV-vis diffuse reflectance spectra (UV-DRS), Raman and photoluminescence (PL) analyses. The simple and smart synthesis anchored well the deposition with controlled Pd NPs size ranging between 17 and 29 nm onto the surface of TiO2. Thus, it gives the characteristic for Pd NPs to absorb light in the visible region obtained through localized surface plasmon resonance (LSPRs). Apparently, the photocatalytic activity of the prepared photocatalysts was evaluated by degrading the endocrine disrupting compound (EDC) amoxicillin (AMX) excited under an artificial visible light source. In the preliminary run, almost complete degradation (97.5%) was achieved in 5 h with 0.5 wt % Pd loading and the degradation followed pseudo-first-order kinetics. The reusability trend proved the photostability of the prepared photocatalysts. Hence, the study provides a new insight about the modification of TiO2 with noble metals in order to enhance the absorption in the visible-light region for superior photocatalytic performance.
Lensed optical fiber sensors for on-line measurement of flow

Ibrahim S, Green RG, Dutton K, Abdul Rahim R

ISA Trans, 2002 Jan;41(1):13-8.
PMID: 12014798

This paper describes a system using lensed optical fiber sensors that are arranged in the form of two orthogonal projections. The sensors are placed around a process vessel for upstream and downstream measurements. The purpose of the system is for on-line monitoring of particles and droplets being conveyed by a fluid. The lenses were constructed using a custom heating fixture. The fixture enables the lenses to be constructed with similar radii resulting in identical characteristics with minimum differences in transmitted intensity and emission angle. By collimating radiation from two halogen bulbs, radiation can be obtained by the sensors with radiation intensity related to the nature of the media. Each sensor interrogates a finite section of the measurement section. Each sensor provides a view. Parallel sensors provide a projection. Signal processing is carried out on the measured data in the time and frequency domains to investigate the latent information present in the flow signals.
Fulltext Restructuring burns management during the COVID-19 pandemic: A Malaysian experience

Ilenghoven D, Hisham A, Ibrahim S, Mohd Yussof SJ

Burns, 2020 08;46(5):1236-1239.
PMID: 32471558 DOI: 10.1016/j.burns.2020.05.008
The sources and ecological risk assessment of elemental pollution in sediment of Linggi estuary, Malaysia

Elias MS, Ibrahim S, Samuding K, Rahman SA, Hashim A

Mar Pollut Bull, 2018 Dec;137:646-655.
PMID: 30503479 DOI: 10.1016/j.marpolbul.2018.11.006

In this study, concentrations of heavy metals, rare earth elements (REEs), Uranium (U) and Thorium (Th) of the actinide group were determined from Linggi estuary sediment samples by neutron activation analysis (NAA) and inductive coupled plasma - mass spectrometry techniques. The geo-accumulation (Igeo) and ecological risk index (Ri) values were calculated to identify the quality status of Linggi estuary sediments. Results indicated Linggi estuary was polluted by arsenic (As), lead (Pb) and antimony (Sb). REEs, U and Th showed significant increase of concentration in Linggi estuary sediments. Ri of Linggi estuary was categorised as low to considerable ecological risk, which indicates no significant to moderate effect on the majority of the sediment-dwelling organisms. Correlation matrix and principal component analysis assessed pollution sources to be both natural and anthropogenic.
Fulltext Cubitus Valgus with Tardy Ulnar Nerve Palsy - Is Anterior Transposition of the Ulnar Nerve Always Necessary? A Case Report

Anuar-Ramdhan IM, Remli R, Abdul-Rashid AH, Ibrahim S

Malays Orthop J, 2020 Jul;14(2):126-129.
PMID: 32983387 DOI: 10.5704/MOJ.2007.010

Tardy ulnar nerve palsy is a known complication of cubitus valgus. The options for treating the ulnar neuropathy include anterior nerve transposition or neurolysis. We report on an 11-year-old boy who had a tardy ulnar nerve palsy due to cubitus valgus resulting from a non-union of a lateral condyle fracture of the humerus. Anterior transposition of the ulnar nerve was not done after the closing wedge osteotomy of the distal humerus. The close wedge osteotomy relieved the tension on the nerve and not transposing the ulnar nerve anteriorly prevented an iatrogenic nerve injury. The patient had no restriction with activities of daily living at the six years follow-up although neurological recovery was incomplete.
Fulltext Subcapital Femoral Neck Tension Stress Fracture - A Rare Injury in A Child: A Case Report

Hayyun MF, Jamil K, Abd-Rashid AH, Ibrahim S

Malays Orthop J, 2021 Mar;15(1):132-134.
PMID: 33880161 DOI: 10.5704/MOJ.2103.021

Femoral neck stress fractures are rare in children. To the best of our knowledge, the tension type stress fracture has been reported only twice in the English language literature. We report on a five years follow-up of a 10-year-old boy with this injury which was initially missed. The fracture healed after screw fixation. We highlight the importance of considering stress fracture as a differential diagnosis in a child with chronic hip pain. A careful physical examination and the appropriate imaging will avoid missing the diagnosis.
Letter to the editor regarding the article, "young lady with bilateral yellowish lesions on her eyelids"

Hisham A, Md Mydin Siddik N, Ibrahim S, Mohd Yussof SJ

Malays Fam Physician, 2020;15(2):56-57.
PMID: 32843948
Add-on rosiglitazone therapy improves plasminogen activity and high-density lipoprotein cholesterol in type 2 diabetes mellitus

Mustaffa N, Ibrahim S, Abdullah WZ, Yusof Z

Blood Coagul Fibrinolysis, 2011 Sep;22(6):512-20.
PMID: 21537159 DOI: 10.1097/MBC.0b013e32834740ba

Rosiglitazone is an oral hypoglycaemic agent of the thiazolidinedione group. This study aimed to assess changes in the diabetic prothrombotic state via plasminogen activity and changes in surrogate markers of atherosclerotic burden via ankle-brachial pressure index (ABPI) measurements after rosiglitazone was added to a pre-existing type 2 diabetes mellitus treatment regime. A nonblinded interventional study was designed. Fifty-nine patients were enrolled. Rosiglitazone-naïve patients were prescribed oral rosiglitazone 4 mg daily for 10 weeks. ABPI, plasminogen activity, glycosylated haemoglobin (HbA1c) and fasting lipid profile were measured pretreatment and post-treatment. Forty-eight patients completed the study. At the end of this study, mean plasminogen activity improvement was nearly 16% (P<0.05), mean ABPI improvement was 0.01 (P=0.439), mean HbA1c reduction was 0.51% (P<0.05), mean total cholesterol (TC) increase was 0.36 mmol/l (P<0.05), mean high-density lipoprotein cholesterol (HDL-C) increase was 0.15 mmol/l (P<0.05) and mean low-density lipoprotein cholesterol increased by 0.19 mmol/l (P=0.098). Rosiglitazone significantly improved plasminogen activity. There was also significant HbA1c reduction, and rise in both TC and HDL-C. Thus, rosiglitazone potentially improves the atherosclerotic burden and prothrombotic state. In future, more studies are needed to confirm the relationship between rosiglitazone, fibrinolytic system and atheromatous reduction in type 2 diabetes mellitus.
Giant cell tumor of the tendon sheath in the knee of an 11-year-old girl

Abdullah A, Abdullah S, Haflah NH, Ibrahim S

J Chin Med Assoc, 2010 Jan;73(1):47-51.
PMID: 20103492

Giant cell tumors are commonly found over the flexor tendon sheath of the hand and wrist. However, giant cell tumors in the knee joint are rare, especially in children. We report an interesting case of an 11-year-old girl who presented with a painful lump on her right knee that enlarged over time. Clinically, she had fullness over the anterolateral part of her knee. Magnetic resonance imaging revealed an encapsulated mass inferior to the patella. The tumor measured 3 x 3.5 x 1.5 cm. Histopathological findings confirmed that it was a tenosynovial giant cell tumor. Because of initial mild symptoms, there was a delay of 2 years from the initial symptoms until tumor excision. Her follow-up period was 35 months, and her health to date is excellent with no recurrence. We believe that reporting this rare case will help clinicians update their knowledge on possible causes of lumps in the knee, and avoid diagnostic delay. It could also prove to be beneficial in arriving at a diagnosis in future cases.
Fulltext Anxiety Reaction in Children During Cast Removal using Oscillating Saw versus Cast Shear - A Randomised, Prospective Trial

Mohamed-Zain NA, Jamil K, Penafort R, Singh A, Ibrahim S, Abdul-Rashid AH

Malays Orthop J, 2021 Jul;15(2):122-128.
PMID: 34429832 DOI: 10.5704/MOJ.2107.018

Introduction: To compare the anxiety levels demonstrated by children during cast removal procedure between oscillating saw vs cast shear methods.
Material and methods: A randomised prospective study of 102 children (mean age 8.3 ± 3.5 years) with fractures involving upper or lower limbs. Children undergoing removal of cast were divided into 2 groups; either by an oscillating saw or a cast cutting shear. The level of anxiety was assessed by recording the heart rate with a portable fingertip pulse oximeter before, during and after removal of the cast. Objective assessment was performed by documenting the fear level on Children's Fear Scale (CFS).
Results: There was a significant increase in the heart rate of children during cast removal while using the oscillating saw compared to cast shear (p<0.05). The noise level produced by the saw exceeded 80 dB (mean 103.3 dB). The fear level was significantly lower in the cast shear group (p<0.05).
Conclusion: The noise produced by the oscillating saw was associated with an increased anxiety level in children undergoing cast removal. Cast shear is a simple and inexpensive instrument that can be used for cast removal in overly anxious children.
A case of a hand burns associated with a "wrap-around" pulse oximeter in an infant

Hisham A, Hafizuddin Bin Salleh M, Ibrahim S, Mohd Yussof SJ

Int Wound J, 2020 Aug;17(4):1097-1098.
PMID: 32333718 DOI: 10.1111/iwj.13375

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