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Volume 13 Issue 5

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Title : A Comparative Analysis of Website Usability Evaluation Techniques

Authors : Nengak Iliya Sitlong, Abraham E. Evwiekpaefe, Martins E. Irhebhude

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Abstract :

Most system interfaces do not meet user intuition in terms of both context and the underlying actions thereof, hence reducing user’s task execution efficiency. This translate into the amount of time taken to learn, recall and complete the procedure for certain task with respect to a given system or device. It was in the light of this that this work took a look at the existing human computer interaction (HCI) usability testing techniques with the intention of empirically establishing which among cognitive walkthrough, heuristic evaluation and user group is the most efficient in identifying and correcting system’s usability problems. To create the research pathway a detail review of related work was undertaken to identify the lacuna therein for the research direction. A case study of the Nigerian Defence Academy (NDA) website was used as a specimen for administering the usability test methods and the outcome of each was documented. The research methodology adopted a purposive and stratified sampling technique to reduced biased and increased reliability of the representative sample chosen for this research. The sample chosen was an extract of final year undergraduate students of Federal College of Education (FCE) Pankshin, an affiliate of University of Jos, Plateau State, Nigeria. The students have taken a course in Human Factor in System Design, which provided them with adequate training in usability test techniques, 20 out of the total 30 students with the requisite skill were chosen to undertake the test process. The data collated passed through paired sample T-test procedure of the compare-mean analysis with confidence interval percentage of 95%, using the IBM Statistical Package for the Social Sciences (SPSS) version 26. The outcome of the T-test showed that the respective means of cognitive-walkthrough, heuristic-evaluation and user-group are 5.750, 4.900 and 6.350, with respective correlation coefficients of 0.192, 0.54 and 0.624. This shows a strong relationship between each pair of the test techniques. However, user-group usability test technique with the highest mean accuracy interval of 1.450 is the best in terms of performance relative to the other two techniques. Finally, the result of the analysis as well as charts created and the participant’s findings were summarized thus proffering way forward and recommendations for the improvement of system and user interaction.


Title : The Role of Information Technology for Quality Education in Nigerian Universities

Authors : Nengak Iliya Sitlong, Abraham E. Evwiekpaefe

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This paper explore the relationship between Information Technology (IT) and its role with regards to quality of education in the Nigerian universities. It firstly elaborated what IT entails and the standards for defining global quality in education. The research went on to identify the cutting edge technologies that are transforming the standard quality in education in the contemporary society as one of the means for establishing the research confines. In addition, the paper elucidated the different categories of university systems in Nigeria and provided accurate statistics of the respective categories.  A review of related literatures was meticulously conducted with the aim of unveiling what aspect of research interest were there to be explored and eventually two research hypothesis were outlined and researched on. The first hypothesis tested for the availability of IT presence in the Nigerian universities, and depending on the outcome of the first hypothesis result, the research on the second hypothesis took effect. The second hypothesis ascertained to what extend is the role of IT to quality education in Nigerian universities. The research used an online questionnaire as the research instrument facilitated by google form organized around complex random sampling technique adopting both clustered sampling and stratified sampling techniques for data collection. Subsequently, the latest version of Statistical Package for the Social Sciences (SPSS) was deployed for the analysis of the collected data; specifically IBM SPSS V26 was used invoking both descriptive statistics and two tailed partial correlation in arriving at the responses to the research hypotheses. The results obtained showed a great presence of state of the art information technology gadgets in the Nigerian University, but there is apparent inappropriateness of applications of the IT tools. Nevertheless the result also showed that there is remarkable relationship between the application of IT tools in teaching and learning in Nigerian Universities and the increase in the standard of quality education. Further, recommendations were provided on how to improve the quality of Nigerian university educational system from the established conclusions.


Title : Peritoneal Malignant Mesothelioma: About a Case and Literature Review

Authors : El Aamraoui Meryem, Chebli Najoua, Hassan Errihani

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Abstract :

Malignant mesothelioma is a rare tumor, the occurrence of which is closely linked to exposure to asbestos, Its incidence is estimated at 0.5 to 3 cases per million inhabitants in humans and 0.2 to 2 cases per million in women.

Pleural mesothelioma is the most frequent form, the peritoneal location represents the second location in terms of frequency, it represents 30% of cases. It is a tumor characterized by clinical polymorphism, and the diagnosis is often made at an advanced stage of the disease, and is based on pathological examination with immunohistochemical study.

The prognosis remains poor, and the treatment is multimodal and discussed in the multidisciplinary consultation meetings (RCP), based on cytoreductive surgery associated with hyperthermic intraperitoneal chemotherapy (CHIP) in localized forms and systemic chemotherapy in disseminated forms. to the entire peritoneal cavity.