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Search Results: 1 - 10 of 13710 matches for " Abdul Razak Ahmed "
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Students’ Journal Paper Citing and Choice of Publisher: The Mediating Roles of Impact Factor and H-Index as Bibliometric Measures  [PDF]
Abdul Razak Ahmed, Xiaoyang Zhang, Shi Yu
Open Access Library Journal (OALib Journal) , 2019, DOI: 10.4236/oalib.1105696
The purpose of this study was to investigate the relationship between journal citation preference (JCP) of scholars and their choice for publisher (CP) for their research papers. The study also considers the mediating roles played by journal impact factor (IF) and H-index (HI) on this relationship. Multiples linear regression analysis and the PROCESS Macro statistical tool were used to assess the main effects and mediating effects between the studied variables. From findings, CP had a 49.1%, 66.7% and 53.0% chance of its variations being explained by a unit increase in JCP, IF and HI respectively. In practical sense, the decision of a research student for a journal paper publisher is explained by the type of journal papers cited in the study up to about 50.0%, ceteris paribus. Impact factor (IF) played a significant mediating role on the relationship between JCP and CP with an r2 of 0.588 against a 0.434 direct effect. Fir HI, an r2 of 0.086 against a direct effect coefficient of 0.434 did not show significant mediation. It implies therefore that CP is influenced mostly by IF of journals.
Investigation on Ethylenediaminetetra-Acetic Acid as Corrosion Inhibitor for Mild Steel in 1.0M Hydrochloric Acid
Ahmed Y. Musa,Abdul Amir H. kadhum,Mohd Sobri Takriff,Abdul Razak Daud
Modern Applied Science , 2009, DOI: 10.5539/mas.v3n4p90
Abstract: The influence of ethylenediaminetetra-acetic acid (EDTA) on the corrosion of mild steel in 1.0 M hydrochloric acid solution was investigated by means of potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The efficiency of EDTA was compared with thiourea. Primary results obtained revealed that EDTA performed as good corrosion inhibitor for mild steel in 1.0 M hydrochloric acid media comparing with thiourea. Polarization curves show that the behavior of EDTA and thiourea are mixed-type inhibitors. EIS shows that the control step for corrosion process is a charge transfer mechanism.
Fuzzy Soft Expert Set and Its Application  [PDF]
Shawkat Alkhazaleh, Abdul Razak Salleh
Applied Mathematics (AM) , 2014, DOI: 10.4236/am.2014.59127

In 1999, Molodtsov introduced the concept of soft set theory as a general mathematical tool for dealing with uncertainty. Alkhazaleh and Salleh (2011) define the concept of soft expert sets where the user can know the opinion of all experts in one model and give an application of this concept in decision making problem. So in this paper, we generalize the concept of a soft expert set to fuzzy soft expert set, which will be more effective and useful. We also define its basic operations, namely complement, union, intersection, AND and OR. We give an application of this concept in decision making problem. Finally, we study a mapping on fuzzy soft expert classes and its properties.

Possibility Fuzzy Soft Expert Set  [PDF]
Maruah Bashir, Abdul Razak Salleh
Open Journal of Applied Sciences (OJAppS) , 2012, DOI: 10.4236/ojapps.2012.24B047
Abstract: In this paper we introduce the concept of possibility fuzzy soft expert set .We also define its basic operations, namely complement, union, intersection, AND and OR, and study some of their properties. Finally, we give an application of this theory in solving a decision making problem.
A Multiple Regression Analysis on Influencing Factors of Urban Services Growth in China  [PDF]
Yuan Gao, ABDUL Razak bin Chik
Technology and Investment (TI) , 2013, DOI: 10.4236/ti.2013.41B001
Abstract: The indicator of urban success is the success of its urban services. Although much research on services have been made, there is major gap with regard to the regional services, especially on urban services within a country. As for urban ser-vices, there are few research on factors influencing urban services and its effect on regional growth. In reaction to this, the government intend to accelerate the development of urban services and regional economy in the present Twelfth Five-Year Plan 2011-2015.Thus, the main purpose of this paper is to investigate the factors that influence urban servic-es growth from demand , supply, institutional environment and spatial agglomeration side. By using cross-section mul-tiple regression analysis, the study examine the factors influencing urban services growth in China .The model indicated that except for urbanization, division of labor , other independent variables have contributed positively towards urban services growth in China.
The Effect of Urban Services Development on Regional Economic Growth in China ——Based on Provincial Panel Data Analysis  [PDF]
Yuan Gao, ABDUL Razak bin Chik
Technology and Investment (TI) , 2013, DOI: 10.4236/ti.2013.41B002
Abstract: The indicator of urban success is the success of its urban services. Although much research on services have been made, there is major gap with regard to the regional services, especially on urban services within a country. As the Chinese government intends to accelerate the development of urban services and regional economy in the present Twelfth Five-Year Plan 2011-2015, the main purpose of this paper is to investigate the effect of urban services development on regional growth. By using panel data of 30 provinces in China from 2001-2011 and through GLS estimation of the ran-dom effect panel data model, it is found that the growth of urban services performed rather well in promoting regional economic growth of all of the three regions in China. But the promoting role of urban services on regional economic growth in this three regions were different among which, the role of urban services in eastern region were strongest , followed by central region and weakest in Western region.
Validation of the Computational Fluid Dynamics (CFD) Method for Predicting Wind Flow
Abdul Razak Sapian
Journal of Construction in Developing Countries , 2009,
Abstract: Virtual Experiments or, more specifically, the Computational Fluid Dynamics (CFD) method have been used in numerous airflow studies. Most CFD code providers claim that their software can simulate and model airflow around a building. However, the literature shows little or no evidence of the implementation of this software for this purpose. Therefore, this study attempts to validate and justify the reliability of this software, by investigating the wind flow around a high-rise building. The main goal of this paper is to determine if the CFD method can be used to study wind flow around a high-rise building, with a focus on the effect natural cross ventilation within a building to predict the indoor air velocity, for human thermal comfort purposes. A software called FloVent from Flomeric Inc. UK was used in the experiments. The data obtained from the simulation are compared with wind tunnel data. The result of theanalysis shows that the deviation between the CFD and wind tunnel data is less than 15% on average. This result indicates that the CFD can be used as an alternative method for investigating wind flow around high-rise buildings in an urban boundary layer condition.
The SCIDOTS Project: Evidence of benefits of an integrated tobacco cessation intervention in tuberculosis care on treatment outcomes
Ahmed Awaisu, Mohamad Haniki Nik Mohamed, Noorliza Mohamad Noordin, Noorizan Abd Aziz, Syed Azhar Syed Sulaiman, Abdul Razak Muttalif, Aziah Ahmad Mahayiddin
Substance Abuse Treatment, Prevention, and Policy , 2011, DOI: 10.1186/1747-597x-6-26
Abstract: An integrated TB-tobacco intervention was provided by trained TB directly observed therapy short-course (DOTS) providers at five chest clinics in Malaysia. The study was a prospective non-randomized controlled intervention using quasi-experimental design. Using Transtheoretical Model approach, 120 eligible participants who were current smokers at the time of TB diagnosis were assigned to either of two treatment groups: conventional TB DOTS plus smoking cessation intervention (integrated intervention or SCIDOTS group) or conventional TB DOTS alone (comparison or DOTS group). At baseline, newly diagnosed TB patients considering quitting smoking within the next 30 days were placed in the integrated intervention group, while those who were contemplating quitting were assigned to the comparison group. Eleven sessions of individualized cognitive behavioral therapy with or without nicotine replacement therapy were provided to each participant in the integrated intervention group. The impacts of the novel approach on biochemically validated smoking cessation and TB treatment outcomes were measured periodically as appropriate.A linear effect on both 7-day point prevalence abstinence and continuous abstinence was observed over time in the intervention group. At the end of 6 months, patients who received the integrated intervention had significantly higher rate of success in quitting smoking when compared with those who received the conventional TB treatment alone (77.5% vs. 8.7%; p < 0.001). Furthermore, at the end of TB treatment (6 months or later), there were significantly higher rates of treatment default (15.2% vs. 2.5%; p = 0.019) and treatment failure (6.5% vs. 0%; p = 0.019) in the DOTS group than in the SCIDOTS group.This study provides evidence that connecting TB-tobacco treatment strategy is significant among TB patients who are smokers. The findings suggest that the integrated approach may be beneficial and confer advantages on short-term outcomes and possibly on
Tobacco use prevalence, knowledge, and attitudes among newly diagnosed tuberculosis patients in Penang State and Wilayah Persekutuan Kuala Lumpur, Malaysia
Ahmed Awaisu, Mohamad Haniki Nik Mohamed, Noorizan Abd Aziz, Syed Azhar Syed Sulaiman, Noorliza Mohamad Noordin, Abdul Razak Muttalif, Aziah Ahmad Mahayiddin
Tobacco Induced Diseases , 2010, DOI: 10.1186/1617-9625-8-3
Abstract: Data were generated on prevalence rates of smoking among newly diagnosed TB patients in the State of Penang from January 2008 to December 2008. The data were obtained based on a review of routinely collated data from the quarterly report on TB case registration. The study setting comprised of five healthcare facilities (TB clinics) located within Penang and Wilayah Persekutuan, Kuala Lumpur health districts in Malaysia, which were involved in a larger project, known as SCIDOTS Project. A 58-item questionnaire was used to assess the tobacco use knowledge, attitudes and behaviors of those TB patients who were smokers.Smoking status was determinant in 817 of 943 new cases of TB from January to December 2008. Of this, it was estimated that the prevalence rates of current- and ex-smoking among the TB patients were 40.27% (329/817) and 13.95% (114/817), respectively. The prevalence of ever-smoking among patients with TB was estimated to be 54,220 per 100,000 population. Of 120 eligible participants for the SCIDOTS Project, 88 responded to the survey (73.3% response rate) and 80 surveys were analyzed (66.7% usable rate). The mean (± SD) total score of tobacco use knowledge items was 4.23 ± 2.66 (maximum possible score=11). More than half of the participants (51.3%) were moderately dependent to nicotine. A moderately large proportion of the respondents (41.2%) reported that they have ever attempted to quit smoking, while more than half (56.3%) have not. Less than half (47.5%) of the study participants had knowledge about the body system on which cigarette smoking has the greatest negative effect. The majority wrongly believed that smokeless tobacco can increase athletic performance (60%) and that it is a safe and harmless product (46.2%). An overwhelming proportion (>80%) of the patients believed that: smoking is a waste of money, tobacco use is very dangerous to health, and that smokers are more likely to die from heart disease when compared with non-smokers. The use of sm
Energy-Efficient Data Collection in Wireless Sensor Networks  [PDF]
Mohammad Hossein Anisi, Abdul Hanan Abdullah, Shukor Abd Razak
Wireless Sensor Network (WSN) , 2011, DOI: 10.4236/wsn.2011.310036
Abstract: Wireless Sensor Networks (WSNs) are usually self-organized wireless ad hoc networks comprising of a large number of resource constrained sensor nodes. One of the most important tasks of these sensor nodes is systematic collection of data and transmits gathered data to a distant base station (BS). Hence network life- time becomes an important parameter for efficient design of data gathering schemes for sensor networks. In this paper, we benefit both cluster and tree structures for data gathering. In our proposed energy-efficient mechanism, the most appropriates hops for data forwarding will be selected and the lifetime of the whole network will be maximized. The simulation results show that by using the proposed approach, the lifetime and the throughput of the network will be increased.
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