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Palembang, Indonesia

For the Thai university, Rajamangala University of Technology Srivijaya also known as Srivijaya University, see Rajamangala University of Technology.Sriwijaya University is a public university in Palembang, South Sumatra, Indonesia. It was founded on 29 October 1960. The current rector, for the years 2011-2015, is Badia Perizade. Wikipedia.

Arifin A.,National University of Malaysia | Arifin A.,University of Sriwijaya | Sulong A.B.,National University of Malaysia | Muhamad N.,National University of Malaysia | And 2 more authors.
Materials and Design | Year: 2014

The bio-active and biodegradable properties of hydroxyapatite (HA) make this material a preferred candidate for implants such as bone replacement in replacing natural tissues damaged by diseases and accidents. However, the low mechanical strength of HA hinders its application. Combining HA with a biocompatible material with a higher mechanical strength, such as a titanium (Ti) alloy, to form a composite has been of interest to researchers. A HA/Ti composite would possess characteristics essential to modern implant materials, such as bio-inertness, a low Young's modulus, and high biocompatibility. However, there are issues in the material processing, such as the rheological behavior, stress-shielding, diffusion mechanism and compatibility between the two phases. This paper reviews the HA and Ti alloy interactions under various conditions, in vitro and in vivo tests for HA/Ti composites, and common powder metallurgy processes for HA/Ti composites (e.g., pressing and sintering, isostatic pressing, plasma spraying, and metal injection molding). © 2013 Elsevier Ltd. Source

Nurmaini Dr. S.,University of Sriwijaya
International Journal of Control and Automation | Year: 2012

Navigation in mobile robot not only avoid obstacles based on the sensor input but also comprehend the nature of its environment, remember over time such comprehended scenarios, recollect them and associate in time perceptions of environment that resemble each other. Such requirements demand spatial and temporal reasoning capabilities, for considering the mobile robot environmental as an experience of a sequence of sensor patterns. Memory-based reasoning must integrate into mobile robot control strategy to produces efficiently movement in unpredictable environment, to achieve robustly and to reduce computational cost. To implement this strategy Fuzzy-Kohonen Network (FKN) technique is utilized by employing small number of rules. The effectiveness of the proposed technique is demonstrated in series of practical test on our experimental mobile robot in structured and unstructured environment. A detailed comparison of the proposed technique with other recent approaches in the specific case of 'local minima' detection and obstacle avoidance is also presented. As results found that mobile robot based on FKN technique has the ability to perform navigation tasks in several environments, it has capability to recognize the environment, suitable for low cost mobile robot due to only produce small resources, provides much faster response to expected events and it allows the mobile robot move without any need to stop for 'danger' situation without suffering from the 'local minima' problem. Source

Indrajaya T.,University of Sriwijaya
Acta medica Indonesiana | Year: 2011

to describe the role of ACE gene polymorphism on pathogenesis of ischemic stroke in patients with the history of hypertension. The study was conducted in a population of Palembang city. approximately 3 ml of peripheral blood samples were obtained by using venipuncture on antecubital vein. The samples were collected in tubes that contained ethylene diamine tetraacetic acid (EDTA) for DNA analysis. The DNA was extracted from leukocytes according to the standard DNAzol® Extraction Protocol. Samples were stored at -80°C until the analysis. Template DNA was then amplified by using a pair of sense oligonucleotide primer of 5'-CTGG AGACC ACTCCCATCCTTTCT-3' and antisense primer 5'-GATGGTGGCCATCAC ATTCGTC AGAT-3', 10 pmol of each primer. The PCR mixture contained 20 ng of genomic DNA, 3 mM MgCl2, 50 mM KCl, 10 mM Tris-HCl pH 8.4, 5% dimethyl-sulphoxide (DMSO), each of 0,5 mM deoxyribonucleoside triphosphate (dNTPs) and 1 unit of Taq polymerase in a final volume of 50 μL. The DNA was amplified by 30 cycles; denaturation at 940C for 1 min, annealing at 580C for 1 min, and extension at 720C for 2 min, followed by a final extension at 720C for 4 min by using PCR Thermal (Icycler, Biorad, USA). PCR products were separated by electrophoresis on a 2% agarosa gel, and identified by ethidium bromide (0.1%) staining, and finally visualized by ultraviolet light. They were documented by using the geldoc (Biorad, USA). The PCR product is a 190 bp fragment in the absence of insertion (D) and a 490 bp fragment in the presence of insertion (I). ischemic stroke with hypertension or with the history of hypertension was found more frequently in male (70%) and ≥ 55 year old subjects (60.0%). The study showed that the frequency of II genotype was higher than DI and DD. Moreover, the frequency of I allele was higher than D allele. In healthy normotensive group, the results remained the same. However, different results were found in infarct-stroke group with hypertension history in which the frequency of DI genotype was higher than in II genotype and the DD. The study showed that there was no significant correlation (p=0.188) between ACE gene polymorphism and infarct stroke in subjects with the history of hypertension. ACE gene just has approximately 5% role in developing ischemic stroke. there is no significant correlation between ACE gene polymorphism and the development of ischemic stroke in patients with history of hypertension of the population in Palembang. However, the study showed that there is a different pattern of genetic control on ACE compared to previous studies ever done in Caucasians. Source

Tama B.A.,University of Sriwijaya
Journal of Theoretical and Applied Information Technology | Year: 2015

Managing customer satisfaction has become a crucial issue in fast-food industry. This study aims at identifying determinant factor related to customer satisfaction in fast-food restaurant. Customer data are analyzed by using data mining method with two classification techniques such as decision tree and neural network. Classification models are developed using decision tree and neural network to determine underlying attributes of customer satisfaction. Generated rules are beneficial for managerial and practical implementation in fast-food industry. Decision tree and neural network yield more than 80% of predictive accuracy. © 2005-2015 JATIT & LLS. All rights reserved. Source

Legiran S.,University of Sriwijaya | Brandi M.L.,University of Florence
Clinical Cases in Mineral and Bone Metabolism | Year: 2012

Background. Leptin has been known to play a role in weight regulation through food intake and energy expenditure. Leptin also has an important role in bone metabolism. The role of leptin is determined by leptin receptors, either central or peripheral to the bones. Design. We discuss the Edizioni role of leptin on bone and molecular genetics of osteoporosis in postmenopausal obese women. Results. The role of leptin in bone preserves bone mineral density (BMD) through increased OPG levels leading to bind RANKL, resulting in reducing osteoclast activity. The estrogen role on bone is also mediated by RANKL and OPG. In postmenopausal women who have estrogen deficiency, it increases the rate of RANKL, which increases osteoclastogenesis. Obese individuals who have a high level of leptin will be effected by bone protection. Conclusion. CIC There are similarities in the mechanism between estrogen and leptin in influencing the process of bone remodeling. It may be considered that the role of estrogen can be replaced by leptin. Molecular genetic aspects that play a role in bone remodeling, such as leptin, leptin receptors, cytokines (e.g. RANK, RANKL, and OPG), require further study to be useful, especially regarding osteoporosis therapy based on genetic analysis. © CIC Edizioni Internazionali. Source

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