Marina Ismail, N. Diah, Suzan Ahmad, N. Kamal, Mohd Khairulnizam Md Dahari
{"title":"Measuring usability of educational computer games based on the user success rate","authors":"Marina Ismail, N. Diah, Suzan Ahmad, N. Kamal, Mohd Khairulnizam Md Dahari","doi":"10.1109/SHUSER.2011.6008500","DOIUrl":"https://doi.org/10.1109/SHUSER.2011.6008500","url":null,"abstract":"Children learn through play [1]. According to Crawford [2] educational game is the children's first contact with the computer. Therefore, it is important that the computer games for children are well designed and usable. Usability testing can also be adopted to assess learner's motivation towards learning. Assessing the usability with children requires special consideration. Children must be allowed to play freely and expressed their opinion while being observed. This study explores the measuring consideration for the usability of an educational game called Jelajah. Jelajah, was designed to teach pre-schools children to learn the Malay words and was developed based on a solid research on educational approaches. Five pre-school children were selected for this study. During the usability testing session, children are observed and their behaviors are recorded in an observation checklist. The session was video-taped for further observation. A post test was administered after the session to seek the children's satisfaction in using the game for learning. Data collected were quantitative and qualitative data. Data were later quantified to measure the effectiveness, efficiency and satisfaction towards the software. Based on the analysis, children showed interest and were highly motivated to learn when using educational game for learning.","PeriodicalId":193430,"journal":{"name":"2011 International Symposium on Humanities, Science and Engineering Research","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126336984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. R. Ibrahim, N. S. Damanhuri, N. A. Othman, R. Radzali, M. N. Mohd, M. K. Hamzah
{"title":"Dual-tariff PV energy system — An alternative to PV energy system in Malaysia","authors":"I. R. Ibrahim, N. S. Damanhuri, N. A. Othman, R. Radzali, M. N. Mohd, M. K. Hamzah","doi":"10.1109/SHUSER.2011.6008481","DOIUrl":"https://doi.org/10.1109/SHUSER.2011.6008481","url":null,"abstract":"Dual-tariff PV energy system was introduced to maneuver the lower tariff rate at off-peak period and to reduce the capital installation cost of PV energy system. In this paper, the system configuration, architecture and operation of the dual-tariff PV energy system are described and discussed. A 2.4 kW prototype system has been developed and run 24-hours to supply the load. Meteorological and electrical data was collected and prove the successful of such system. The system is expected to reduce 89% of electricity bill with estimated COE of RM3.813/kWh. It is hoped that the dual-tariff PV system can serve as an alternative implementation of standalone PV energy system.","PeriodicalId":193430,"journal":{"name":"2011 International Symposium on Humanities, Science and Engineering Research","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121097302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. W. Abdul, N. Mohamad, H. H. Mizaton, H. F. Mohsin, T. Ponto
{"title":"Stigmasterol from a Pandanus and Myrmecodia species","authors":"I. W. Abdul, N. Mohamad, H. H. Mizaton, H. F. Mohsin, T. Ponto","doi":"10.1109/SHUSER.2011.6008492","DOIUrl":"https://doi.org/10.1109/SHUSER.2011.6008492","url":null,"abstract":"The isolation of compounds 1 and 2, respectively from two unrelated plants [a Pandanus (Pandanaceae) and a Myrmecodia (Rubiaceae)] is presented. According to the Nuclear Magnetic Resonance (NMR) spectroscopy, both biomolecules could be a triterpene. The NMR data from P. tectorius' phytosterol was compared, where a mixture of stigmasterol:β-sitosterol (2:1) was reported. However, the signals for an exo-methylene group likewise in Pandanus' antitubercular tirucallane, did not appear in the <sup>1</sup>H-NMR spectrum of 1 and 2 (500 MHz, δ<inf>H</inf> 0.5–5.5 ppm, CDCl<inf>3</inf>). Furthermore, the <sup>13</sup>C-NMR spectroscopy (125 MHz, δ<inf>C</inf> 10–141 ppm, CDCl<inf>3</inf>) suggested 1 and 2 as a non-ketosteroid of possibly 29 carbon atoms. Both equally could be an aglycon triterpenoid, due to the absence of <sup>13</sup>C-NMR signals at δ<inf>C</inf> 60–110, which are carbons' signals, assigned for sugar moieties. However, one <sup>13</sup>C-NMR peak at δ<inf>C</inf> 71.81 and 71.82 [C-3 (OH)] was detected, respectively for 1 and 2. Therefore, the occurrence of a hydroxylated stigmastane-like molecule was proposed. Instead, two sets of -C=C- bonds (1: δ<inf>C</inf> 140.76; 129.29 and 138.29; 121.70); (2: δ<inf>C</inf> 140.78; 129.31 and 138.29; 121.70) were observed. From 2D NMR spectra, 1 was recognised as stigmata-(5,22)-diene-3-ol or stigmasterol. Stigmasterol was also reported from a Hydnophytum species, another epiphytic myrmecophytes associated with Myrmecodia. Recrystallizations were performed to purify crystal 2 (13.4 mg colorless needles; R<inf>f</inf> = 0.2), which was also proposed as a type-1 molecule. In short, stigmasterol was identified as the major non-polar component from these two plant extracts.","PeriodicalId":193430,"journal":{"name":"2011 International Symposium on Humanities, Science and Engineering Research","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134435015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"xLearning — A new paradigm of on-line learning","authors":"K. Nagi","doi":"10.1109/SHUSER.2011.6008501","DOIUrl":"https://doi.org/10.1109/SHUSER.2011.6008501","url":null,"abstract":"Widespread use of portable and mobile devices requires drastic changes in the ways the educational and training organizations deliver a courseware. The new paradigm of xLearning (where x= using any device for learning) incorporates courseware and services enabled by emerging Internet technologies in use today. This paper provides insight into the significance of the cloud and connectivity. New ways of teaching and learning requires a shift in system design in context of online teaching and learning using any portable device connected to the cloud.","PeriodicalId":193430,"journal":{"name":"2011 International Symposium on Humanities, Science and Engineering Research","volume":"2012 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132045250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dynamic causal modelling for schizophrenia","authors":"M. Nagori, W. Ranjana, M. Joshi","doi":"10.1109/SHUSER.2011.6008504","DOIUrl":"https://doi.org/10.1109/SHUSER.2011.6008504","url":null,"abstract":"Schizophrenia is a complex psychiatric disorder which leads to local abnormalities in brain activity. Functional Magnetic Resonance Imaging (fMRI) technology enables medical doctors to observe brain activity patterns that represent the execution of subject tasks, both physical and mental. In general, each subject exhibits his own activation pattern for a given task, whose intensity is affected by the physiology of the subject's brain, the usage of medications, and the parameters of the scanner used for image acquisition. Since it is possible to co-register the resulting activation map to a standard brain, all activation patterns from the different individuals can be analyzed in terms of consistency on the brain sections or brain coordinates where the activation is observed. The dynamic Causal Model using Bayesian networks (DBNs) extracts causal relationships from functional magnetic resonance imaging (fMRI) data applying HITON-PC, a local causal algorithm. Based on these relationships, a dynamic causal model is to be build that is used to classify patient data as belonging to healthy or ill subjects. Causal Explorer is a Matlab library of computational causal discovery and variable selection algorithms.","PeriodicalId":193430,"journal":{"name":"2011 International Symposium on Humanities, Science and Engineering Research","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126570418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Notice of RetractionFactors associated with the adoption of improved cook stoves in southern parts of India","authors":"K. Pushpa","doi":"10.1109/SHUSER.2011.6008490","DOIUrl":"https://doi.org/10.1109/SHUSER.2011.6008490","url":null,"abstract":"The Improved cook stoves popularised under the National Programme of Improved Chulhas in India claims more than double the thermal efficiency of the conventional cook stoves and several health and environmental benefits to the users and their micro environment with overall benefits at macro level. But several studies have indicated a low rate of adoption of this technology by the prospective users to whom the cook stove had been given either free or at subsidized price. This unhealthy trend in the adoption of improved wood stove had to be checked for ensuring success in programme implementation. The overall objective of the study was to assess the level of adoption of the improved cook stoves in the study locale and to understand the factors promoting or precluding its adoption. An analytical survey design was followed for the study. An interview schedule with an attitude scale and a technology rating scale developed by the investigator was used for data gathering. Family size, family occupation and age of the beneficiaries were the variables associated with the level of adoption of the improved cook stoves. Majority of the adopters exhibited a neutral attitude towards the cook stoves. Very few families rated the technology as highly appropriate. This paper analyses the variables associated with the adoption of improved cook stoves in rural areas of southern India.","PeriodicalId":193430,"journal":{"name":"2011 International Symposium on Humanities, Science and Engineering Research","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130841314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Modified PTS with FECs for PAPR reduction in MIMO-OFDM system with different subcarriers","authors":"P. Mukunthan, P. Dananjayan","doi":"10.1109/SHUSER.2011.6008507","DOIUrl":"https://doi.org/10.1109/SHUSER.2011.6008507","url":null,"abstract":"Multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) systems have been proposed in the recent past for providing high-data rate services over wireless channels. When combined with space time coding it provides the advantages of space-time coding and OFDM, resulting in a spectrally efficient wideband communication system. However, MIMO-OFDM systems suffer with the problem of inherent high peak to average power ratio (PAPR) due to the intersymbol interference between the subcarriers. In this paper, a generalized framework for PAPR reduction for space-time coded OFDM systems based on modified PTS using forward error-correcting codes (FECs) such as Turbo codes and Golay codes are employed in the modified PTS radix FFT, where, the PAPR is jointly optimized in both the real and imaginary parts, separately multiplied with phase factors when dividing the subcarriers into 4 subgroups. The simulation results show that the combined FEC with modified PTS technique significantly provides better PAPR reduction with reduced computational complexity compared to original PTS technique in the MIMO-OFDM systems.","PeriodicalId":193430,"journal":{"name":"2011 International Symposium on Humanities, Science and Engineering Research","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114860554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Agent-based MOM for interoperability cross-platform communication of SOA systems","authors":"Najhan M. Ibrahim, M. Hassan, Zain Balfagih","doi":"10.1109/SHUSER.2011.6008496","DOIUrl":"https://doi.org/10.1109/SHUSER.2011.6008496","url":null,"abstract":"Demands for interoperability are getting increased since there are a lot of products available to provide the same functionality which have raised some heterogeneous issues. Various middleware technologies are often used as the communication infrastructure for distributed system to ensure the interoperability. However, different types of middleware have cause interoperability issues as well. One of the middleware architectures used for heterogeneous systems is MOM. Message Oriented Middleware (MOM) is known as common glue technology for heterogeneous, distributed and loosely coupled software system. In this paper we explore and analyze studies related to distributed communication using MOM architecture. We found that there are some weaknesses for MOM such as limited ability to link complex application, losing the trace of execution and low level of autonomous. To overcome these weaknesses, some researches have been done to extend MOM architecture. Most of these efforts are addressing one or two of the MOM limitations and not the general requirement of cross-platform communication such 24 by 7 environment, autonomous level, failure recovery and guaranteed transmission. In the end, we have proposed conceptual framework which is agent-based MOM for interoperability cross-platform communication of SOA system.","PeriodicalId":193430,"journal":{"name":"2011 International Symposium on Humanities, Science and Engineering Research","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131934310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluating the usability and acceptance of multimedia web-based education among children","authors":"Suzana Baharudin, Marina Ismail, Suzan Ahmad, Nurazian Mior Dahalan","doi":"10.1109/SHUSER.2011.6008497","DOIUrl":"https://doi.org/10.1109/SHUSER.2011.6008497","url":null,"abstract":"Development of a software product needs to be evaluated to ensure that it meets the objective. There are many ways to evaluate a software product. Software are tested for its functionality, usability, completeness and also the acceptance. This study evaluated the usability and acceptance of a multimedia web based education among children. The web based education that was tested for this study is called ‘Adikku Sayang.com’, a website that teaches children to learn Bahasa Melayu. The website has been developed based on sound theory in teaching and learning, pedagogical and multimedia concept. Hundred children at the age between 4–7 years old from all over Malaysia have been selected to participate in this test. This research involves ethnography field testing that were conducted through observation and interview. The evaluation components that were evaluated are the speed of system's performance, rate of error, user retention of command overtime, user satisfaction, terminology used, screen testing and learning ability and the acceptance towards the website. Data collected from the study are analyzed using SPSS based on its mean. The result showed that the website is accepted by the children as a website that can be used to teach the introduction to learning Bahasa Melayu. The usability test also showed that the website is usable for children in the age group between 4 to 7 years old.","PeriodicalId":193430,"journal":{"name":"2011 International Symposium on Humanities, Science and Engineering Research","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114466513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Visual speech recognition of Modern Classic Arabic language","authors":"Pascal Damien","doi":"10.1109/SHUSER.2011.6008499","DOIUrl":"https://doi.org/10.1109/SHUSER.2011.6008499","url":null,"abstract":"Viseme-based Visual Speech Recognition (VSR) systems, using Hidden Markov Models (HMM) for phoneme recognition, generally use 3-state left-right HMM for each viseme to recognize. In this article, we propose a novel approach introducing a consonant-vowel detector and using two classifiers: an HMM based classifier for the recognition of the “consonant part” of the phoneme and a classifier for the “vowel part”. The benefits of such an approach include (1) reducing the number of hidden states and (2) reducing the number of HMMs. We tested our method on a limited set of words of the Modern Classic Arabic language and achieved a recognition rate of 81.7%. Moreover, the proposed model is speaker-independent and uses visemes as the basic units, thereby, making it applicable to any set of words of varying size or content.","PeriodicalId":193430,"journal":{"name":"2011 International Symposium on Humanities, Science and Engineering Research","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123822382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}