Computer Engineering
ISSN: 10003428
Volume 14, Issue 5, 2025
Research Articles
Enhancing Science Achievement in Secondary Schools: Teachers' Perspectives on Innovative Strategies
Pages: 1–6
Abstract
Citation
This study was based on teachers’ assessment of innovative teaching strategies that could enhance secondary school students’ science achievement. It was guided by two research questions and one null hypothesis. The study adopted a descriptive survey research design. Purposive sampling technique was used to obtain a sample of 150 secondary school Science Teachers in Nasarawa State West Senatorial Zone. Innovative Teaching Assessment Questionnaire (ITAQ) was developed by the researchers as an instrument for data collection. The reliability of the instrument was determined using Cronbach Alpha method which yielded a coefficient value of 0.88. Expert opinions were used to validate the instrument for the study. The research questions were answered using means and standard deviations. The null hypothesis was tested at 0.05 level of significance using Chi-Square statistic. Results revealed that simulations, brain-storming, peer- tutoring, collaborative learning, competitive learning and discovery learning were innovative teaching strategies that proved to enhance Science Students’ achievement. Based on the findings of this study, it was recommended that Science teachers should be encouraged to employ these innovative strategies in teaching to enhance students’ learning and academic achievement in science.
Dr. Afolabi Temitope, Dr. Nneoma Blessing Chukwueke. "Enhancing Science Achievement in Secondary Schools: Teachers' Perspectives on Innovative Strategies." Computer Engineering, vol. 14, no. 5, pp. 1–6, 2025.
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Investigating Correlation-Based Link Predictions through Differential Evolution Optimization
Pages: 7–16
Abstract
Citation
: Binary correlation indices are crucial for forecasting and modelling tasks in different areas of scientific research. The setting of sound binary correlations and similarity measures is a long and mostly empirical interactive process, in which researchers start from experimental correlations in one domain, which usually prove to be effective in other similar fields, and then progressively evaluate and modify those correlations to adapt their predictive power to the specific characteristics of the domain under examination. In the research of prediction of links on complex networks, it has been found that no single correlation index can always obtain excellent results, even in similar domains. The research of domain-specific correlation indices or the adaptation of known ones is therefore a problem of critical concern. This paper presents a solution to the problem of setting new binary correlation indices that achieve efficient performances on specific network domains. The proposed solution is based on Differential Evolution, evolving the coefficient vectors of meta- correlations, structures that describe classes of binary similarity indices and subsume the most known correlation indices for link prediction. Experiments show that the proposed evolutionary approach always results in improved performances, and in some cases significantly enhanced, compared to the best correlation indices available in the link prediction literature, effectively exploring the correlation space and exploiting its self-adaptability to the given domain to improve over generations.
Alessandro Rossi and Sofia De Luca. "Investigating Correlation-Based Link Predictions through Differential Evolution Optimization." Computer Engineering, vol. 14, no. 5, pp. 7–16, 2025.
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Temporal Dynamics of Plantar Pressure Distribution using Parametric Mapping Techniques
Pages: 17–36
Abstract
Citation
Background: Pedobarography produces large sets of plantar pressure samples that are routinely subsampled (e.g. using regions of interest) or aggregated (e.g. center of pressure trajectories, peak pressure images) in order to simplify statistical analysis and provide intuitive clinical measures. Research Question: We hypothesize that these data reductions discard gait information that can be used to differentiate between groups or conditions. Methods: To test the hypothesis of null information loss, we created an implementation of statistical parametric mapping (SPM) for dynamic plantar pressure datasets (i.e. plantar pressure videos). Our SPM software framework brings all plantar pressure videos into anatomical and temporal correspondence, then performs statistical tests at each sampling location in space and time. Novelly, we introduce non-linear temporal registration into the framework in order to normalize for timing differences within the stance phase. We refer to our software framework as STAPP: spatiotemporal analysis of plantar pressure measurements. Using STAPP, we tested our hypothesis on plantar pressure videos from 33 healthy subjects walking at different speeds. Results: As walking speed increased, STAPP was able to identify significant decreases in plantar pressure at mid-stance from the heel through the lateral forefoot. The extent of these plantar pressure decreases have not previously been observed using existing plantar pressure analysis techniques. Significance: We therefore conclude that the subsampling of plantar pressure videos – a task which led to the discarding of gait information in our study – can be avoided using STAPP. Keyterms— Pedobarography, Walking Speed, Statistical Parametric Mapping, Spatiotemporal Analysis Computer Engineering ISSN: 10003428 Volume 14 | Issue 5 | Year 2025 https://journalofcomputerengineering.com/ © 2025 Computer Engineering. All Rights Reserved. Page 17
Emily J. WYNTON,*,†, Katrien J. VAN DEN BROECK2, Lucas R. VANDERPOTTE1,2. "Temporal Dynamics of Plantar Pressure Distribution using Parametric Mapping Techniques." Computer Engineering, vol. 14, no. 5, pp. 17–36, 2025.
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Exploring Digital Discourse in the Middle East: A New Paradigm of Politics
Pages: 37–42
Abstract
Citation
Social media determined dramatic changes in the balance of political power in the Arab world and in Israel. In the new politics of the Middle East the political environment and the communications between people are different then what used to be before 2011. Two major civil demonstrations – the Arab Spring and the Israeli Social Justice movement – were motivated by the masses through social media and received tremendous media coverage. The revolutions proved that the internet is truly a powerful tool that changed the world in ways that no government can stop social movements. The research finds similarities between the uprisings in the Arab world and in Israel, which created a new environment of "new politics." The uprisings that began on Facebook, and Twitter changed the way societies function and caused governments to change old policies. Despite the long-lasting conflict in the Middle East, involving the Palestinian issue, which traditionally occupied governments and public agenda, the uprisings raised social and economic issues. The events started with isolated acts of young people through social media and brought together people from all walks of life and across all political spectrums. The legitimacy of the protest to be considered as social revolution came only after the media started live transmissions – global media of the Arab Spring and Israel's national media services of the Social Justice movement. This proves the crucial role of traditional media, since only after the social media revolution was accepted by the media, a new reality could be created, in which the public rather than governments and social media and not the traditional media are dictating public agenda and enforcing political changes.
Amir Cohen and Galit Raz. "Exploring Digital Discourse in the Middle East: A New Paradigm of Politics." Computer Engineering, vol. 14, no. 5, pp. 37–42, 2025.
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Microscale Surface Texturing Effects on Lubrication in Non- Conformal Contacts
Pages: 43–52
Abstract
Citation
This paper presents an experimental study on the effects of micro-textured surfaces on lubricated nonconformal point contacts. Thus, we focus on a regime poorly investigated in literature, where the contact area and the micro-holes have a comparable size. Tribological characterization are performed on three geometrical patterns, which are textured on stainless steel polished surfaces. Experiments are carried out on a rheometer, where a steel ball slides against the surface of the samples. These samples are tested with two different viscosities of the PAO (Poly-Alpha-Olefin) as a lubricant. Results show the change in the friction with respect to the sliding velocity under different lubrication regimes due to the stress, void ratio and two different kinematic viscosities of PAO. In particular, we show that, depending on the void ratio, a significant friction reduction or, on the contrary, a deterioration of the frictional performances can affect the boundary and mixed lubrication regimes. This is due to the simultaneous occurrence of two competing effects. One is related to the stress intensification, due to the presence of the micro-hole edges on the contact topography, which leads to a consequent increase in wear and friction. On the other hand, micro-texture may play a positive role in the friction optimization given the possibility, offered by the micro-holes, to entrap wear debris and, then, to preverse a smoother interface between the contacting pairs.
G. Bianchi, M. Russo, R. Esposito, K. Müller, A. Mariani, G. Sarti. "Microscale Surface Texturing Effects on Lubrication in Non- Conformal Contacts." Computer Engineering, vol. 14, no. 5, pp. 43–52, 2025.
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Advanced Signal Processing Techniques for Laser Information Measuring Systems
Pages: 53–62
Abstract
Citation
Improving the accuracy of measuring motion parameters and the volume of information exchange with aircraft requires the modern development of multifunctional radio systems that allow the combination of information and measuring channels due to frequency (time) signal selection. However, radio systems have limitations on the number and accuracy of the measurement of aircraft motion parameters, as well as information transfer rates. These restrictions will make it possible to remove laser systems for measuring with high accuracy the parameters of motion of aircraft. Similar laser systems are widely used in transmitting information to stationary or quasi-stationary objects. As a result, there was a need to overcome the contradiction between the requirements for the technical characteristics of radio systems and the capabilities of the existing scientific and methodological apparatus for synthesizing the signals of laser information-measuring systems for monitoring the parameters of aircraft motion. The theoretical foundations of the formation and selection of laser signals for combining the information and measuring channels of laser information-measuring systems are proposed and investigated. A comparison is made with known methods of combining (combining) the information and measuring channels of radio engineering systems and the features of using a spectrum of laser radiation formed by pairs of longitudinal modes that “color” each channel signal for their selection at reception. When receiving optical pairs of longitudinal modes, the intermode beat frequencies turn into radio engineering subcarriers that are well filtered and selectable. Based on the results of mathematical modeling and combinations of longitudinal modes, the choice of elements of a modified selector of longitudinal modes of laser information- measuring systems is substantiated. This determines the importance and usefulness of work for applied systems for measuring the parameters of movement of aircraft.
Dr. Christian H. Bischof. "Advanced Signal Processing Techniques for Laser Information Measuring Systems." Computer Engineering, vol. 14, no. 5, pp. 53–62, 2025.
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Medication Practices in Primary Health Care Settings of the Brazilian Unified Health System: A Descriptive Analysis
Pages: 63–74
Abstract
Citation
OBJECTIVE: To characterize the use of medicines by patients of the primary health care of the Brazilian Unified Health System (SUS). METHODS: This is a cross-sectional, exploratory, and descriptive study, part of the Pesquisa Nacional sobre Acesso, Utilização e Promoção do Uso Racional de Medicamentos – Serviços, 2015 (PNAUM – National Survey on Access, Use and Promotion of Rational Use of Medicines – Services, 2015). Interviews were carried out with patients present in the services by semi-structured questionnaires. Sociodemographic, clinical, and use of medicines variables were assessed and the use of medicines in the 30 days prior to the interview was also verified. The population was stratified into three age groups: 18 to 44, 45 to 64, and 65 years or more. The differences between the age groups were verified using the Student’s t-test for continuous variables and chi-square test for the categorical ones. The complex samples analysis plan was employed. The medicines were classified according to the Anatomical Therapeutic Chemical Classification System. RESULTS: Of the 8,803 patients interviewed, 6,511 (76.2%) reported to have used medicines in the 30 days prior to the interview. On average, each patient used 2.32 medicines, without difference between the sexes. Among medicine users, 18.2% were aged 65 years or more. Compared to the other age groups, older adults presented more comorbidities, used more medicines, and self-reported worse health conditions. They were also less educated, reported worse economic situation, and lived alone. The medicines that were mostly used were “other analgesics and antipyretics” (3rd ATC level) and Losartan (5th ATC level). CONCLUSIONS: Most medicine users had lower education level and presented comorbidities. The most used medicines were the antihypertensive ones. Self-medication was higher among young people. Most patients reported to use generic medicines. The average number of medicines and the prevalence of use increased with age. Due to the characteristics observed and the difficulties in the use of medicines, older adults are in a situation of greater vulnerability.
delay the emergence of complications associated with the. "Medication Practices in Primary Health Care Settings of the Brazilian Unified Health System: A Descriptive Analysis." Computer Engineering, vol. 14, no. 5, pp. 63–74, 2025.
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Comparative Analysis of Requirements Prioritization Strategies in Marketing Contexts
Pages: 75–86
Abstract
Citation
Aisha Malik, Sophia Khan, and Omar Ali. "Comparative Analysis of Requirements Prioritization Strategies in Marketing Contexts." Computer Engineering, vol. 14, no. 5, pp. 75–86, 2025.
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Comparative Evaluation of Antioxidant Potentials of Chitosan Extracts Obtained via Diverse Extraction Techniques
Pages: 87–90
Abstract
Citation
Chitosan is a natural polysaccharide that has antioxidant properties. It can consider as an antioxidant agent in food supplements. In this study the effect of extraction methods on the antioxidant activity of chitosan was investigated. Three methods including enzymatic, acid and alkaline methods were applied for isolating the chitosan from shrimp waste. The content of extracted chitosan was measured and its antioxidant activity was investigated by employing various analyses such as assay of their power on the oxidative stability in sunflower oil and DPPH. Inhibition of lipid per-oxidation was evaluated by thiobarbituric acid reactive substances assay. The extracted chitosan by enzymatic method had best antioxidant activities. Furthermore, the results demonstrated that good yields can be obtained via enzymatic treatment. According to the results, the content of chitosan influences on antioxidant activity. The chitosan extracted by enzymatic method can be a source of antioxidant agents in manufacturing food and supplement.
Dr. Yara Alizada, Dr. Kavus Jafari, Dr. Leila Nazemi, Dr. Cyrus Yazdanparast, Dr. Amir. "Comparative Evaluation of Antioxidant Potentials of Chitosan Extracts Obtained via Diverse Extraction Techniques." Computer Engineering, vol. 14, no. 5, pp. 87–90, 2025.
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Maximal Subgroup Structure in Countably Categorized Groups
Pages: 91–114
Abstract
Citation
The object of this work is to find classes of groups which possess only countably many maximal subgroups. Modules with countably many maximal submodules and group rings having countably many maximal right ideals are also investigated. Examples of soluble groups with uncountably many maximal subgroups are described.
Anastasios Kontogiannis, Sofia Papadopoulou, and Ethan Fraser. "Maximal Subgroup Structure in Countably Categorized Groups." Computer Engineering, vol. 14, no. 5, pp. 91–114, 2025.
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