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Search Results: 1 - 10 of 873 matches for " Selma Limam Mansar "
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Integrating Health Theories in Health and Fitness Applications for Sustained Behavior Change: Current State of the Art  [PDF]
Angela Brunstein, Joerg Brunstein, Selma Limam Mansar
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.38B001
Abstract: Two hundred million people in the US are overweight or obese mirroring a worldwide trend that is associated with high morbidity and mortality rates. Health and fitness mobile technology applications have great capacities for supporting dieters’ life-style changes and could profit from and provide input of health behavior theories. Those theories have been demonstrated with massive clinical evidence to be efficient for fostering healthy lifestyle changes and weight loss. This research reviewed the 100 most popular mobile technology applications from iTunes App Store’s Health and Fitness category in respect coverage of health behavior theories’ concepts und chose 14 of those for a complete analysis. Applications provide good support for athletes’ workouts and have great potential to be extended to serve overweight users as well. Missing features could be easily implemented given the current state of technology. These developments look promising for tackling sustained weight loss in many mobile technology users.
Adapting a Database of Text Messages to a Mobile-Based Weight Loss Program: The Case of the Middle East
Selma Limam Mansar,Shashank Jariwala,Nawal Behih,Maahd Shahzad,Aysha Anggraini
International Journal of Telemedicine and Applications , 2014, DOI: 10.1155/2014/658149
Abstract: Obesity has become a worldwide epidemic. Qatar, a rapidly developing country in the Middle East, has seen a sharp increase in the prevalence of obesity. The increase can be attributed to several reasons, including sedentary lifestyles imposed by a harsh climate and the introduction of Western fast food. Mobile technologies have been used and studied as a technology to support individuals’ weight loss. The authors have developed a mobile application that implements three strategies drawn from proven theories of behavioral change. The application is localized to the cultural context of its proposed users. The objective of this paper is to present a method through which we adapted the messaging content of a weight loss application to the context of its users while retaining an effective degree of automation. The adaptation addressed body image, eating and physical exercise habits, and regional/cultural needs. The paper discusses how surveying potential users can be used to build a profile of a target population, find common patterns, and then develop a database of text messages. The text messages are automated and sent to the users at specific times of day, as suggested by the survey results. 1. Introduction Tackling the weight issue is a significant undertaking. Worldwide, the number of obese people has doubled in the past 20 years [1]. We explored ways in which mobile technologies can be adapted to meet environmental and cultural norms and thereby support individuals in their effort to lose weight. In this paper, we examine the case of the Middle East through the example of Qatar. According to the International Association for the Study of Obesity, the numbers for obesity for the Qatari population are alarming. The association ranks the country sixth on its list of the most obese countries worldwide. The numbers presented in [2] (cited by [3]) were overwhelming: for the 25–65 age group, 34.6% of the men were obese and 34.3% were overweight. For females in the same age group, 45.3% were obese and 33% were overweight. The figures are also alarming for children: [4] (cited by [3]) found that in the 12–17 age group, 28.7% of boys were overweight and 7.6% were obese. Additionally, 20.3% of the girls in the same age group were overweight and 4.5% were obese. A more recent study in Qatar [5] suggests slightly lower figures among children of 2–19 years old, but still a much higher percentage than the current 16.9% for American children in this age group as reported by the National Health and Nutrition Examination Survey (NHANES) [6]. Despite this disparity, the
Consensus Decision for Protein Structure Classification  [PDF]
Khaddouja Boujenfa, Mohamed Limam
Journal of Intelligent Learning Systems and Applications (JILSA) , 2012, DOI: 10.4236/jilsa.2012.43022
Abstract: The fundamental aim of protein classification is to recognize the family of a given protein and determine its biological function. In the literature, the most common approaches are based on sequence or structure similarity comparisons. Other methods use evolutionary distances between proteins. In order to increase classification performance, this work proposes a novel method, namely Consensus, which combines the decisions of several sequence and structure comparison tools to classify a given structure. Additionally, Consensus uses the evolutionary information of the compared structures. Our method is tested on three databases and evaluated based on different criteria. Performance evaluation of our method shows that it outperforms the different classifiers used separately and gives higher classification perfor-mance than a free-alignment method, namely ProtClass.
AN EXTENSION AND IMPROVEMENT OF THE CLOUDSIM SIMULATOR
Ghalem Belalem,Said Limam
International Journal of Digital Information and Wireless Communications , 2011,
Abstract: Cloud computing has become a signi cant technology trend. With the cloud computing technology, users use a variety of devices to access programs, storage, and application- development platforms over the Internet, via services offered by cloud computing providers. Advantages of the cloud computing technology include cost savings and high availability. Access to the infrastructure in Cloud Computing incurs payments. To design and develop Cloud technologies focus on defining novel methods, policies and mechanisms for efficiently managing Cloud infrastructures. To test these newly developed methods and policies, researchers need tools that allow them to evaluate the hypothesis prior to real deployment in an environment where one can reproduce tests free of cost. Simulation- based approaches offer significant benefits. CloudSim enables seamless modeling, simulation, and experimentation of emerging Cloud computing infrastructures and application services. In the CloudSim simulator there are two problems: Lack of links between Datacenters and no possibility to create a virtual machine (VM) in more Datacenters. In this paper we propose a ring topology to allow the exchange and the sharing of information and services between different Datacenter, and we improve the method of creating VMs to allow the creation of VMs in several Datacenter, which improves fault tolerance in this type of environment.
A semantic cache for enhancing Web services communities activities: Health care case Study
Hela Limam,Jalel Akaichi
International Journal of Advanced Computer Sciences and Applications , 2012,
Abstract: Collective memories are strong support for enhancing the activities of capitalization, management and dissemination inside a Web services community. To take advantages of collective memory, we propose an approach for indexing a health care Web services community’s’ resources with semantic annotations explaining and formalizing its informative content. Then we show how the health care Web services community’ members exploit their collective memory by expressing their queries allowing them searching relevant resources in order to perform their activities.
Managing and Querying Web Services Communities: A Survey
Hela Limam,Jalel Akaichi
International Journal of Database Management Systems , 2011,
Abstract: With the advance of Web Services technologies and the emergence of Web Services into the informationspace, tremendous opportunities for empowering users and organizations appear in various applicationdomains including electronic commerce, travel, intelligence information gathering and analysis, healthcare, digital government, etc.However, the technology to organize, search, integrate these Web Services has not kept pace with therapid growth of the available information space. The number of Web Services to be integrated may belarge and continuously changing.To ease and improve the process of Web services discovery in an open environment like the Internet, it issuggested to gather similar Web services into groups known as communities.Although Web services are intensively investigated, the community management issues have not beenaddressed yetIn this paper we draw an overview of several Web services Communities’ management approachesbased on some currently existing communities platforms and frameworks. We also discuss differentapproaches for querying and selecting Web services under the umbrella of Web services communities’.We compare the current approaches among each others with respect to some key requirements.
Web Services Synchronization Health Care Application
Jalel Akaichi,Hela Limam
International Journal of Web & Semantic Technology , 2011,
Abstract: This With the advance of Web Services technologies and the emergence of Web Services into theinformation space, tremendous opportunities for empowering users and organizations appear in variousapplication domains including electronic commerce, travel, intelligence information gathering andanalysis, health care, digital government, etc. In fact, Web services appear to be s solution for integratingdistributed, autonomous and heterogeneous information sources. However, as Web services evolve in adynamic environment which is the Internet many changes can occur and affect them. A Web service isaffected when one or more of its associated information sources is affected by schema changes.Changes can alter the information sources contents but also their schemas which may render Web servicespartially or totally undefined. In this paper, we propose a solution for integrating information sources intoWeb services. Then we tackle the Web service synchronization problem by substituting the affectedinformation sources. Our work is illustrated with a healthcare case study.
On the Use of the K-Chart for Phase II Monitoring of Simple Linear Profiles
Walid Gani,Mohamed Limam
Journal of Quality and Reliability Engineering , 2013, DOI: 10.1155/2013/705450
Abstract: Control charts for monitoring linear profiles are used to control quality processes which are characterized by a relationship between a response variable and one or more explanatory variables. In the literature, the majority of control charts deal with phase II analysis of linear profiles, where the objective is to assess the performance of control charts in detecting shifts in the parameters of linear profiles. Recently, the kernel distance-based multivariate control chart, also known as the K-chart, has received much attention as a promising nonparametric control chart with high sensitivity to small shifts in the process. Despite its numerous advantages, no work has proposed the use of the K-chart for monitoring simple linear profiles and that serves the motivation for this paper. This paper proposes the use of the K-chart for monitoring simple linear profiles. A benchmark example is used to show the construction methodology of the K-chart for simultaneously monitoring the slope and intercept of linear profile. In addition, performance of the K-chart in detecting out-of-control profiles is assessed and compared with traditional control charts. Results demonstrate that the K-chart performs better than the control chart, EWMA control chart, and R-chart under small shift in the slope. 1. Introduction In the last decade, control charts for monitoring linear profiles have acquired a prominent role in controlling quality processes characterized by a relationship between a response variable and one or more explanatory variables. A control chart for monitoring linear profiles consists of two phases. In phase I, the parameters of the regression line are estimated to determine the stability of the process. In phase II, the goal is to detect shifts in the process from the baseline estimated in phase I. In the literature, the majority of control charts deal with the phase II analysis of linear profiles. Kang and Albin [1] proposed a multivariate control chart for monitoring both the intercept and the slope, while Kim et al. [2] suggested the use of three univariate exponentially weighted moving average (EWMA3) control charts for simultaneously monitoring the intercept, slope and standard deviation. Zou et al. [3] proposed a multivariate EWMA scheme when the quality process is characterized by a general linear profile. Zhang et al. [4] developed a control chart based on EWMA and Likelihood ratio test. Zou and Qiu [5] developed the LASSO-based EWMA control chart, for monitoring multiple linear profiles. Li and Wang [6] established an EWMA scheme with variable
Managing and Querying Web Services Communities: A Survey
Hela Limam,Jalel Akaichi
Computer Science , 2011,
Abstract: With the advance of Web Services technologies and the emergence of Web Services into the information space, tremendous opportunities for empowering users and organizations appear in various application domains including electronic commerce, travel, intelligence information gathering and analysis, health care, digital government, etc. However, the technology to organize, search, integrate these Web Services has not kept pace with the rapid growth of the available information space. The number of Web Services to be integrated may be large and continuously changing. To ease and improve the process of Web services discovery in an open environment like the Internet, it is suggested to gather similar Web services into groups known as communities. Although Web services are intensively investigated, the community management issues have not been addressed yet In this paper we draw an overview of several Web services Communities' management approaches based on some currently existing communities platforms and frameworks. We also discuss different approaches for querying and selecting Web services under the umbrella of Web services communities'. We compare the current approaches among each others with respect to some key requirements.
Web services synchronization health care application
Hela Limam,Jalel Akaichi
Computer Science , 2011, DOI: 10.5121/ijwest.2011.2204
Abstract: With the advance of Web Services technologies and the emergence of Web Services into the information space, tremendous opportunities for empowering users and organizations appear in various application domains including electronic commerce, travel, intelligence information gathering and analysis, health care, digital government, etc. In fact, Web services appear to be s solution for integrating distributed, autonomous and heterogeneous information sources. However, as Web services evolve in a dynamic environment which is the Internet many changes can occur and affect them. A Web service is affected when one or more of its associated information sources is affected by schema changes. Changes can alter the information sources contents but also their schemas which may render Web services partially or totally undefined. In this paper, we propose a solution for integrating information sources into Web services. Then we tackle the Web service synchronization problem by substituting the affected information sources. Our work is illustrated with a healthcare case study.
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