Volume 7, Issue 9 (2010) | American Journal of Applied Sciences

Cardiotrophin-1 in Patients with Acute Myocardial Infarction

Abdolreza Sotoodeh Jahromi — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1190.1194

Problem statement: Myocardial infarction is the combined result of environmental and personal factors. Prothrombotic factors might play an important role in this phenomenon. Inflammation plays a pivot...

Effect of Temperature and Time to the Antioxidant Activity in Plecranthus amboinicus Lour.

Mohd S. Azman Abdul Rahim — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1195.1199

Problem statement: Processing of food involving heat will contribute to loss of nutritional content, thus it is important to measure and control temperature and time to reduce the loss. Approach: Exam...

Differences in Soil Physical and Chemical Properties of Rehabilitated and Secondary Forests

M. H. Akbar — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1200.1209

Problem statement: The soil properties of tropical rain forest in Southeast Asia have been characterized by several researchers; however empirical data on soil characteristics under rehabilitation pro...

Comparison of Two Regimens of Nigella sativa Extract for Treatment of Subclinical Mastitis Caused by Staphylococcus aureus

Hamideh Ghodrati Azadi — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1210.1214

Problem statement: Little research has focused on treatment of cows with subclinical mastitis during lactation. The seed of Nigella sativa Linn. (Ranunculaceae), commonly known as black seed or black ...

Effect of Thickness of Tris (8-Hydroxyquinolinato) Aluminum on the Photoluminescence and I-V Characteristic of Organic Light Emitting Structure

Lim Mei Yee — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1215.1218

Problem statement: How the thickness of the tris (8-hydroxyquinolinato) Aluminum (Alq3) effect the optical and electrical properties of organic light emitting diode. Approach: The optimum thickness, p...

Comparison of Pre-Processing and Classification Techniques for Single-Trial and Multi-Trial P300-Based Brain Computer Interfaces

Chanan S. Syan — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1219.1225

The P300 component of Event Related Brain Potentials (ERP) is commonly used in Brain Computer Interfaces (BCI) to translate the intentions of an individual into commands for external devices. The P300...

Dielectric Properties of Ni_0.2Zn_0.8Fe₂O₄-Polypropylene Composites

Tan Foo Khoon — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1226.1230

Problem statement: In the last decade, the studies and investigation on polymer-based composites have drawn significant attention owing to improvement in their mechanical, thermal, electrical, optical...

Heavy Metals Contamination of Road-Deposited Sediments

Jonathan Yisa — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1231.1236

Problem statement: Impact of anthropogenic activities on man and his environment as a result of the growing rate of urbanization in Bida, Nigeria is of a great concern. Street sediments that accumulat...

Wall Shear Stress Distribution in Patient Specific Coronary Artery Bifurcation

Vahab Dehlaghi — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1237.1242

Problem statement: Atherogenesis is affected by hemodynamic parameters, such as wall shear stress and wall shear stress spatial gradient. These parameters are largely dependent on the geometry of arte...

Determination of Antioxidants in Oil Palm Leaves (Elaeis guineensis)

Ng Mei Han — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1243.1247

Problem statement: Previous findings on the occurrence of water soluble antioxidants in palm oil has brought to the question on whether these compounds is also present in other parts of the oil palm; ...

Parametric Deduction Optimization for Surface Roughness

Tian-Syung Lan — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1248.1253

Problem statement: Surface roughness is a major consideration in modern Computer Numerical Control (CNC) turning industry. Most existing optimization researches for CNC finish turning were either acco...

Image Reconstruction Algorithm for Electrical Charge Tomography System

M. F. Rahmat — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1254.1263

Problem statement: Many problems in scientific computing can be formulated as inverse problem. A vast majority of these problems are ill-posed problems. In Electrical Charge Tomography (EChT), normall...

Synthesis of a Robust Multiobserver for the Estimation of Unknown Inputs Using the Piecewise Quadratic Functions

Elyes Maherzi — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1264.1276

Problem statement: The estimation of states and the unknown inputs of a nonlinear system described by a multimodel are done by a multiobserver. The stabilization of the multiobserver calls upon uses...

Mathematical Modeling and Characterization of Thin Film, Narrow Gap Sensor Array Units (SAU)

Mahmoud Z. Iskandarani — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1277.1284

Design, modeling, testing and analysis multi-gap PbPc sensor array units for the purpose of gas detection are carried out. The tested devices showed reduction in conductance as a function of increas...

Effect of Compression on the Acoustic Absorption of Coir Fiber

Mohd Jailani Mohd Nor — 2010-09-30

American Journal of Applied Sciences, Published online: 30 September 2010; doi:10.3844/ajassp.2010.1285.1290

Problem statement: The absorption characteristics of coir fiber were analyzed previously. Analytical method to predict the acoustical behavior of coir fiber has already been developed. However, comp...