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International Journal of Advances in Applied Sciences

IJAAS
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Published by Institute of Advanced Engineering and Science

ISSN : 22528814 EISSN : 27222594 DOI : http://doi.org/10.11591/ijaas

Core Subject : Science, Education, Social,

Earth & Planetary Sciences Environmental Science Materials Science & Nanotechnology Mathematics Physics

International Journal of Advances in Applied Sciences (IJAAS) is a peer-reviewed and open access journal dedicated to publish significant research findings in the field of applied and theoretical sciences. The journal is designed to serve researchers, developers, professionals, graduate students and others interested in state-of-the art research activities in applied science areas, which cover topics including: chemistry, physics, materials, nanoscience and nanotechnology, mathematics, statistics, geology and earth sciences.

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Articles 8 Documents

Search results for , issue "Vol 3, No 1: March 2014" : 8 Documents clear

Highly Correlated Wiener polarity Index: A Model to Predict Log p Immadesetty Pothu Raju
International Journal of Advances in Applied Sciences Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

Wiener polarity index of a more generalized graph of chemical graphs of polyacenes and phenylenes is computed and the results are used to design a model for predicting log p values of polyacenes. The multiple regression with two descriptors gives improved models with correlation coefficient 0.999999980642502.

Building Information Modelling Penetration Factors in Malaysia W. I. Enegbuma; Y. A. Dodo; K. N. Ali
International Journal of Advances in Applied Sciences Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

The construction industry master plan in Malaysia provides ample leverage towards information technology improvements in the construction industry. Building Information Modelling (BIM) transforms the means to which the traditionally thought method is construction is carried out. Changes occur in aspects of people, process and technology during such transformation. Information technology (IT) acceptance theories of Theory of Reasoned Action (TRA), Technology Acceptance Model (TAM), Theory of Planned Behaviour (TPB), Innovation Diffusion Theory (IDT), Decomposed Theory of Planned Behaviour (DTPB), Extension of Technology Acceptance Model (TAM2) and Unified Theory of Acceptance and Use of Technology stipulates underlining theories to accessing user perception to new systems such as BIM. This paper presents the linking paths to factors of user perceptions (people, process and technology) and how they react in strategic IT implementation and collaborative environment to fully support extensive BIM penetration in the industry. The study further extends the BIM penetration model by Enegbuma and Ali (2012). The model will aid industry practitioners to tackle the various challenges experienced with BIM implementation. Future research will focus on solidifying the proposal with data analysis.

Shells of Telescopium Telescopium as Biomonitoring Materials of Ni Pollution in the Tropical Intertidal Area C. K. Yap
International Journal of Advances in Applied Sciences Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

The objective of this paper is to propose the use of the shells of Telescopium telescopium as good biomonitoring materials of Ni pollution. The snail and surface sediment samples were collected from 17 geographical sites in Peninsular Malaysia and they were dissected into six different soft tissues, namely foot, cephalic tentacle (CT), mantle, muscle, gill and remaining soft tissues (REST). The total shells, pooled and dissected soft tissues and sediments were determined for Ni using an air-acetylene flame Atomic Absorption Spectrophotometer. The present findings based on 1) ratios of shell/soft tissues (ratios> 1.0), 2) bioaccumulation factor values (shell as microconcentrator), 3) statistical outcomes of correlation analysis [significant correlations between shells and geochemical fractions (acid-reducible, non-resistant, resistant and total Ni concentrations) in the environmental sediments] and multiple linear stepwise regression analysis [significantly influenced by total Ni concentrations in the sediment], and 4) lowest value of coefficient of variation [thus higher precision], do indicate the very potential of shells of T. telescopium as good biomonitoring material of Ni pollution in the tropical intertidal area.

Effect of Lime and Waste Stone Powder Variation On the pH Values, Moisture Content and Dry Density of Clayey Soil Armin Roohbakhshan; Behzad Kalantari
International Journal of Advances in Applied Sciences Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

This paper reports an investigation of the influence of waste stone powder and lime on the geotechnical properties of clayey soil. The compaction and changes in the chemical properties of the soil with pH test when mixed with varying proportions of waste stone powder and lime were investigated. Thus, the effectiveness of using Waste Stone Powder (WSP) and lime for preliminary laboratory tests including grain size analysis, PH test and standard Proctor compaction tests for stabilizing fine-grained clayey soil (CL) was investigated in the laboratory. The percentage of lime and WSP used on the samples varied from 0 to 11%, which treatment of the samples with lime and WSP content show that the optimal moisture and maximum dry density values of the samples were changed. The results show increasing in the pH value of clayey soil with increasing amount of waste stone powder and lime. And the optimal moisture content increased with increasing lime and WSP content for all the samples. Also the maximum dry density decreased with increasing lime, whereas the maximum dry density increased with increasing WSP content. The behavior of the geotechnical properties of the clayey soil when blended with waste stone powder and lime indicates that these materials are a good modifier for this soil.

A Review on Contamination of Heavy Metals, Linear Alkylbenzenes, Polycyclic Aromatic Hydrocarbons, Phenolic Endocrine Disrupting Chemicals and Organochlorine Compounds in Perna viridis from the Coastal Waters of Malaysia: A compilation of 1998 Data C. K. Yap
International Journal of Advances in Applied Sciences Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

Since 1990s until today, the Asia-Pacific Mussel Watch approach has been widely used for biomonitoring purpose in Malaysia by using the green-lipped mussel Perna viridis in particular. This paper reviewed the concentrations of heavy metals (Cd, Cu, Pb and Zn), Linear Alkylbenzenes (LABs), Polycyclic Aromatic Hydrocarbons (PAHs), phenolic Endocrine Disrupting Chemicals (EDCs) [nonylphenol (NP), octylphenol (OP), and bisphenol A (BPA)] and organochlorine (OC) compounds (PCBs, DDTs, CHLs, HCHs and HCB) in nine mussel populations collected in 1998 from the coastal waters of Malaysia. In fact, all of these data were published separately in five different research journals in the literature. Since they discussed only based on the group of contaminants which they focused upon, this review paper aimed to see a holistic picture and understanding of the impacts of the different chemical contaminants in relation to the description of the sampling sites. Based on seven mussel populations with complete 11 chemicals (ranging from heavy metals, LABs, PAHs, phenolic EDCs and OCs), a dendrogram was established using single linkage cluster analysis. The clustering pattern showed two major subclusters. The first one comprising Tanjung Rhu, Trayong, Kuala Penyu and Pasir Panjang populations, indicating relatively uncontaminated conditions while the other subcluster consists of Penang, Kg. Pasir Puteh and Anjung Batu which indicated contaminated conditions as it is well supported by the elevated levels of some chemicals. The subcluster combining Penang and Kg. Pasir Puteh populations were mainly due to the elevated levels of LABs and PAHs in both sites while Kg. Pasir Puteh also had elevated levels of Cu, Pb, PCBs and CHLs. Anjung Batu, which is also clustering together with Penang and Kg. Pasir Puteh population can be explained by its elevated levels of three OC compounds namely DDTs, CHLs and HCHs. This comprehensive review is the first to report in the literature.

Neuropharmacognosy as an Emerging Multidisciplinary Science Abdelaziz Ghanemi; Besma Boubertakh
International Journal of Advances in Applied Sciences Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

Neuropharmacognosy represents the field that combines neuroscience and pharmacognosy. It allows us to better understand and use the data that pharmacognosy provides and apply them in neurosciences which may lead to new therapeutic approaches.The existence of both pharmacological and toxicological aspects of neuropharmacognosy creates more challenges. However, the methodsprovided by the related fields, such as chemistry and biology, let us expect more advances and hopefully new perspective that would overcome the current challenges

An Evaluation of the Antimicrobial Activity of Various Concentrations of Ocimum sanctum Against Various Species of Bacteria: an Invitro Study Shiju Mathew
International Journal of Advances in Applied Sciences Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

Plants are one of the most important sources of medicines. Among the plants known for medicinal value, the plants of genus Ocimum belonging to family Labiatae are very important for their therapeutic potentials. Ocimum sanctum L., known as ‘Tulsi’ in Hindi and ‘Holy Basil’ in English is an erect softy hairy aromatic herb or under shrub found throughout India. The antimicrobial activity is done by using Soxhlet apparatus method. For antimicrobial activity, Nutrient broth was used for inoculating the culture. Then wells were cut on the solidified agar medium which were swabbed with microorganism. Thus agar well diffusion method is carried out. The extracts were poured into the wells at different concentrations like 25%, 50% and 100%. After incubation, zone of inhibition was observed. So Ocimum sanctum can be used in developing drugs and medicines against various activities of Bacteria

Modeling The Multiple Indirect Effect Among Latent Constructs By Using Structural Equation Modeling: Volunteerism Program Wan Mohamad Asyraf Wan Afthanorhan
International Journal of Advances in Applied Sciences Vol 3, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

This study aimed to evaluate the factors used for develop a best model of multiple indirect effect among latent constructs by using Structural Equation Modelling (SEM) on volunteerism program as a research subject. The data be collected through questionnaires distributed at four higher education institution. This questionnaire is constructed based on four dimension which is motivation, benefits, goverment support, and barrier The data were distributed by using stratified sampling technique and involving 453 respodents . In this case, the data were analyzed by using Analysis Moment of Structural (AMOS) 18.0 in order to examine the influence of exogenous and endogenous variables. As a result showed that the goverment support is significant and direct influences on motivation, benefits, and barrier. Moreover, the benefits and barrier is significant and direct influence on motivation. In generals, the findings revealed that benefits influence is most crucial for motivation of volunteerism.

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