University of Peradeniya

About: University of Peradeniya is a education organization based out in Kandy, Sri Lanka. It is known for research contribution in the topics: Population & Poison control. The organization has 5970 authors who have published 7388 publications receiving 197002 citations.

A critical review of social resilience assessment frameworks in disaster management

Abstract: The role of social resilience in disaster management continues to gain increasing attention and interest from both researchers and practitioners. This paper critically reviews existing frameworks and methods to understand their application in a disaster context, to highlight key challenges and future directions for developing robust social resilience assessment frameworks. The analysis revealed a lack of consistency in key concepts used to measure social resilience to disasters. This results in significant confusion in the way key concepts are understood, interpreted, and applied. Due to the multi-faceted nature of social resilience concepts, there are pronounced theoretical and practical difficulties in carrying out a rapid, but rational, accurate, and meaningful assessment of social resilience to disasters. Many of the key process-oriented indicators are not included in the existent social resilience frameworks, since they are not easy to operationalise due to their dynamic nature. Therefore, a comprehensive social resilience framework that can be adapted to different contexts and integrated with specific measurement tools and guidelines is necessary. Such a comprehensive framework can make resilience measurement consistent across geographies by adapting it with context specific resilience characteristics.

TiO2 Surface Treatment Effects by Mg2+, Ba2+, and Al3+ on Sb2S3 Extremely Thin Absorber Solar Cells

Abstract: Sb2S3-based extremely thin absorber (ETA) solar cells of structure, , was fabricated with porous TiO2 surface treating by Mg2+, Ba2+, and Al3+ to be full-inorganic printed solar cells. The fabrication parameters of the ETA structure were optimized and the photovoltaic characteristics were improved significantly when double treatment in Mg2+ and Ba2+ were introduced. Best cells obtained using double treatment in Mg2+ and Ba2+ attained a short-circuit photocurrent of 13.4 mA/cm2, a open-circuit voltage of 0.584 V, a fill factor of 0.525, and a conversion efficiency 4.10% at 1 sun irradiation.

Does Carica papaya leaf-extract increase the platelet count? An experimental study in a murine model

Abstract: Objective To investigate the potential role of fresh Carica papaya (C. papaya) leaf extract on haematological and biochemical parameters and toxicological changes in a murine model.

Adsorptive interaction of antibiotic ciprofloxacin on polyethylene microplastics: Implications for vector transport in water

Abstract: This study investigates the adsorption behavior of Ciprofloxacin (CPX) antibiotic on polyethylene (PE) microplastics through batch adsorption experiments under various environmental conditions, i.e., ionic strengths, pH and in the presence of dissolved organic matter (DOM). The adsorption of CPX showed a gradual increase with increasing pH reaching the maximum adsorption at pH 6.5–7.5 and then decreased, which is likely due to the redistribution of CPX species with pH. The overall CPX adsorption capacity of PE microplastics decreased with an increase in the ionic strength revealing the hydrophobic and electrostatic interactions. Fourier-transform infrared spectra (FTIR) bands ascribable to −CH2 and −CH3 functional groups exhibited non-polar hydrophobic properties of PE microplastics. CPX adsorption kinetics data were compatible with the parabolic diffusion model and the Elovich model in the presence of humic acid, suggesting that the adsorption was assisted through diffusion-controlled processes. The isotherm equilibrium data fitted well for Hill and Dubinin–Radushkevich models implying multilayer adsorption through physical adsorption processes on the heterogeneous PE microplastics surface. Hence, PE microplastics could be a potential vector to transport CPX in a natural aquatic environment where the adsorption mechanism is being influenced primarily by the pH, ionic strength, DOM of the water system, and the properties of the plastic.