The first part of this paper presents the classical Sabine formula used for estimating the reverberation time (𝑇60 of a room. An experiment was then conducted in which the reverberation time was evaluated using both the Sabine formula and the Schroeder algorithm, the latter estimating 𝑇60through the analysis of the Room Impulse Response (RIR).The second part of the paper introduces a corrected Sabine formula obtained by multiplying the original Sabine expression with a correction.....

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This study presents a comprehensive petrophysical and depositional environment evaluation of the QX Field, located in the Southeastern Niger Delta. The aim was to integrate well log analysis, and seismic attribute evaluation to characterize the reservoir properties and estimate hydrocarbon potential. Three key reservoirs (RES 1, RES 2, and RES 3) were delineated using gamma ray, resistivity, density, and neutron logs, followed by quantitative petrophysical analysis.........

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Mangrove forests are among the most productive and carbon-rich ecosystems on Earth, providing essential services such as shoreline protection, nursery habitats for fisheries, nutrient cycling, and long-term carbon sequestration. However, degradation from deforestation, wood harvesting, and land conversion releases significant greenhouse gases. Assessing above-ground and below-ground biomass along disturbance gradients is therefore crucial for understanding how human activities affect the climate-mitigation capacity of mangroves, particularly in Nigeria's Niger Delta. This study quantified above-ground biomass..........

[1]. Adame, M. F., Zakaria, R. M., Fry, B., Chong, V. C., Then, Y. H. A., Brown, C. J., & Lee, S. Y. (2018). Loss and recovery of carbon and nitrogen after mangrove clearing. Ocean & Coastal Management, 161;117–126. https://doi.org/10.1016/j.ocecoaman.2018.04.019
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The Native plant Paederia foetida, sometimes known as the skunk vine, is a member of the Rubiaceae family. A wide range of conditions can be treated with the plant, including rheumatoid arthritis and liver diseases. The goal of the current study was to utilize Swiss ADME to determine the pharmacokinetic profile of the methanolic extract from Paederia foetida leaves. Several bioactive substances were identified using GC-MS analysis, with terpenoids, fatty acid esters, and aromatic derivatives showing the largest peaks. The absorption, distribution, metabolism, and excretion (ADME) characteristics of these substances were examined in detail.Only a small percentage exhibited pharmacokinetic limitations, whereas the majority met Lipinski's rule of five and demonstrated good gastrointestinal absorption, adequate solubility, and excellent drug likeness scores.

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Self-service technology (SST) is increasingly being adopted by modern retailers to improve transaction efficiency, including through the use of self-checkout. But the success of its implementation depends on how consumers assess the quality of the system and the experience provided. This study aims to analyze the influence of customer satisfaction and reuse intention on the use of self checkout in the modern Indonesian retail sector. This study used a quantitative approach involving 50 respondents aged 20-51 years who had used self checkout technology. The method used is structural equation modeling (SEM)-PLS.........

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The nonlinear impairments in high-speed optical communication networks are becoming more and more limited by Kerr effects, dispersion-nonlinearity interactions, and amplified spontaneous emission noise. With changes in the transmission systems toward terabit-scale data rates, operation in an ultrawideband and space-division multiplexing architecture, the ability to maintain nonlinearity is critical in maintaining reach, spectral efficiency, and energy performance. The given paper provides a synthesizing overview and categorization of key remedies such as optical phase conjugation, Raman/EDFA hybrid amplification, soliton-based transmission..........

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Artificial intelligence (AI) is rapidly emerging as a transformative force with potential to address pressing global challenges in climate change, health, and social policy. However, without deliberate attention to fairness, transparency, and accountability, the risks of reinforcing inequalities, eroding trust, and misaligning with policy priorities remain significant. This article conducts a systematic review and conceptual synthesis of frameworks for responsible AI, and highlight how ethical and governance considerations can shape AI's contribution to global problem-solving...........

[1]. Aguh, P. S., Udu, C. E., Chukwumuanya, E. O., & Okpala, C. C. (2025). Machine learning applications for production scheduling optimization. Journal of Exploratory Dynamic Problems, 2(4). https://edp.web.id/index.php/edp/article/view/137
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The integration of Artificial Intelligence (AI) in education has transformed how learning is personalized, delivered, and assessed. This article explored the dual dimensions of AI tutors, which enhances cognitive outcomes and addresses equity challenges within automated education systems. Drawing on emerging research and practical developments, the paper examined how AI-driven platforms can improve student engagement, metacognitive skills, and academic achievement through adaptive and individualized instruction. Simultaneously, it highlights critical concerns including algorithmic bias, the digital divide, and disparities in access to quality AI tools among marginalized groups..........

[1]. Aguh, P. S., Udu, C. E., Chukwumuanya, E. O., and Okpala, C. C. (2025). Machine learning applications for production scheduling optimization. Journal of Exploratory Dynamic Problems, 2(4). https://edp.web.id/index.php/edp/article/view/137
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The growing demand for eco-efficient materials has driven the development of biodegradable polymer nanocomposites with enhanced performance and reduced environmental footprint. This study investigates the mechanical, thermal, and biodegradation behavior of Polylactic Acid (PLA) reinforced with three sustainable nanofillers: Cellulose Nanocrystals (CNC), Chitin Nanofibers (ChNF), and Lignin Nanoparticles (LNP). The nanocomposites were prepared via melt blending at 3 wt% filler content, and their structural, thermal, and mechanical properties were systematically characterized.........

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Climate change poses unprecedented challenges to global food systems, as it threatens productivity, sustainability, and food security. By drawing lessons from global case studies, this article examined the integration of smart and resilient agricultural practices as a pathway to sustainable food systems. By leveraging technologies such as precision farming, remote sensing, and artificial intelligence, smart agriculture optimizes resource use and enhances efficiency, while resilient agriculture, which encompasses agroforestry, conservation practices, and diversified production systems, strengthens adaptive capacity and system stability..........

[1]. Aguh, P. S., Udu, C. E., Chukwumuanya, E. O., and Okpala, C. C. (2025). Machine learning applications for production scheduling optimization. Journal of Exploratory Dynamic Problems, 2(4). https://edp.web.id/index.php/edp/article/view/137
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Cities around the world are increasingly challenged by the intersecting pressures of climate change, technological transformation, and rapid urbanization. Building resilience in this context requires an integrated approach that goes beyond infrastructure durability or digital innovation alone. This article examines how climate-responsive urban design, technological innovation, and human well-being can be combined to create smart and resilient cities. Drawing on multidisciplinary perspectives, it argues that resilience is most effective when ecological adaptation strategies are reinforced by robust digital systems and grounded in human-centered values..........

[1]. Ahern, J. (2011). From fail-safe to safe-to-fail: Sustainability and resilience in the new urban world. Landscape and Urban Planning, 100(4), 341–343. https://doi.org/10.1016/j.landurbplan.2011.02.021
[2]. Aguh, P. S., Udu, C. E., Chukwumuanya, E. O., & Okpala, C. C. (2025). Machine learning applications for production scheduling optimization. Journal of Exploratory Dynamic Problems, 2(4). https://edp.web.id/index.php/edp/article/view/137
[3]. Aldrich, D. P., & Meyer, M. A. (2015). Social capital and community resilience. American Behavioral Scientist, 59(2), 254–269. https://doi.org/10.1177/0002764214550299
[4]. Anguelovski, I., Shi, L., Chu, E., Gallagher, D., Goh, K., Lamb, Z., Reeve, K., & Teicher, H. (2016). Equity impacts of urban land use planning for climate adaptation: Critical perspectives from the global north and south. Journal of Planning Education and Research, 36(3), 333–348. https://doi.org/10.1177/0739456X16645166
[5]. Archer, D., & Dodman, D. (2015). Making capacity building critical: Power and justice in building urban climate resilience in Indonesia and Thailand. Urban Climate, 14, 68–78. https://doi.org/10.1016/j.uclim.2015.06.007

The durability and strength performance of construction materials in coastal environments are crucial for sustainable infrastructure. This study investigates the effect of seawater on the compressive strength of sandcrete blocks in Nembe, Bayelsa State, Nigeria. Sand and water samples were collected from Basambiri (seawater environment) and Amassoma (freshwater environment). Sandcrete blocks were produced using a cement-to-sand ratio of 1:8 and cured for 7, 14, 21, and 28 days with either freshwater or seawater. Compressive strength tests were conducted using a Universal Testing Machine in accordance with ASTM C140/C140M-20 and NIS 87:2000 standards..........

[1]. Anosike, F. (2011). Concrete and Sandcrete Technology. Lagos: Civil Engineering Press.
[2]. Ede, A., & Joshua, T. (2015). Effect of seawater on concrete durability in coastal regions. Journal of Nigerian Civil Engineering, 12(2), 45–52.
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