Hasanuddin University

Abstract This study examines the socioeconomic impacts of the March 2024 earthquake on household resilience in Bawean Island, East Java, Indonesia. Data for this study were collected through a survey with a snowball sampling technique, with a total of 221 valid respondents from affected regions. Using a household survey across 12 affected villages and partial least squares-structural equation modeling (PLS-SEM), the study identifies critical factors contributing to household resilience, namely social, economic, human, and physical capital assets. The findings can be explained in two ways. First, the result confirms social, economic, human, and physical capital as critical resilience determinants. Second, higher household resilience could reduce the impact of natural disasters. This study can be an input for policymakers to strengthen household resilience in disaster-prone areas to support sustainable development goals (SDGs).

Dopamine, a critical neurotransmitter, plays a pivotal role in regulating various physiological and neurological processes. The detection and monitoring of dopamine levels are essential for understanding the pathophysiology of diseases such as Parkinson’s, Alzheimer’s, and depression. Reduced graphene oxide (rGO)-based electrochemical sensors have garnered significant attention due to their exceptional properties, including superior electrical conductivity, expansive surface area, and remarkable functionalization potential. This review article provides a comprehensive discussion of recent advancements over the past eight years in rGO-based dopamine electrochemical sensors, encompassing rGO synthesis techniques and surface modification methods. The integration of rGO with other materials, such as inorganic compounds, polymers, and biomolecules, is also examined to assess sensor performance metrics, including detection limit, sensitivity, and linear range. Finally, we elucidate future research prospects for the development of more effective rGO-based dopamine electrochemical sensors.

Climate change profoundly affects the phytochemical profiles and therapeutic potentials of medicinal plants through environmental stressors such as rising temperatures, altered precipitation patterns, and increased atmospheric CO2 levels. This review critically examines the mechanisms underlying these impacts, focusing on physiological plant responses, shifts in primary and secondary metabolite biosynthesis, and the consequent effects on medicinal efficacy and toxicity. Our findings indicate that elevated CO2 often enhances biomass production but exerts variable effects on bioactive compound concentrations; temperature fluctuations disrupt phenological phases, thereby altering medicinal quality; and water stress significantly modulates secondary metabolite profiles. While these environmental challenges threaten plant-based healthcare, potential mitigation strategies—including sustainable agricultural practices, genetic engineering, and conservation approaches—are discussed as viable solutions. We recommend future research to emphasize metabolomics, interdisciplinary methodologies, and integration of traditional knowledge to bolster resilience and preserve the therapeutic efficacy of medicinal plants amid ongoing climatic uncertainties.

This study evaluates the technical and environmental feasibility of incorporating fine recycled concrete aggregate (FRCA) and recycled concrete powder (RCP) as partial replacements for natural sand and cement in mortar. Mortar mixtures were prepared with FRCA replacement levels of 0–60

Functional ABO3 perovskite oxides are a highly diverse and active field of research at the interface between chemistry and solid-state physics. These materials have remarkable optoelectronic and photocatalytic properties, which make them suitable for use in advanced technological fields. In particular, they can improve the efficiency of optoelectronic devices and facilitate cutting-edge photocatalytic reactions, such as the degradation of pollutants, CO2 reduction, and hydrogen production. The assembly of plasmonic nanoparticles (NPs), such as gold (Au) or silver (Ag), with perovskite oxides significantly enhances the performance of the latter thanks to surface plasmon resonance (SPR), which is a fundamental property of noble metal NPs. This work focuses on studying the improvement of the optoelectronic properties of LaMnO3 perovskite (lanthanum and manganese [III] oxide) through the integration of spherical (S) and hollow (H) Au and Ag NPs (SNPs, HNPs). First, density functional theory was used to determine the optical properties of the LaMnO3 perovskite crystal structure. Second, the finite element method was used to analyze the optoelectronic and plasmonic properties of the LaMnO3-NPs nanocomposite. Four types of NPs were considered, namely, two solid spheres made of Au and Ag (AuSNPs, AgSNPs) and two hollow spheres (AuHNPs and AgHNPs), for which the SPR characteristics were determined as a function of parameters such as the volume fraction and the size of the nanometric cavity. The near-field enhancement effect induced by the presence of these NPs in the LaMnO3 matrix is studied by calculating the field amplification factor. Subsequently, the optimization of light absorption after the introduction of these plasmonic NPs is evaluated by determining the associated optical parameters, such as transmittance and absorbance. Finally, the bandgap energy of the nanocomposite is calculated from the absorption coefficient using the Tauc plot method. The results of this study demonstrate that the incorporation of spherical and hollow Au and Ag NPs significantly improves the absorption performance of LaMnO3 perovskite. In addition, the addition of these NPs leads to a reduction in the bandgap energy of the LaMnO3 semiconductor. These improvements in the optoelectronic properties of LaMnO3 perovskite broaden its response spectrum, which is particularly advantageous for applications in photocatalysis and advanced optoelectronic devices.