Percorrer por autor "Gari, Sirak Robele"
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- Building an integrated analytical framework: a new methodology to analysing social-ecological systemsPublication . Gari, Sirak Robele; Newton, Alice; Icely, John DavidAppropriate adaptive management frameworks are useful for analyzing social-ecological systems. Natural resource managers and concerned stakeholders can co-design locally adapted, appropriate management systems based on the information obtained using frameworks, which leads to a better understanding of the social-ecological system (SES). However, no single framework addresses all environmental and social issues with equal efficiency. Therefore, the Driver-Activity-Pressure-State-Impact (Welfare)-Response (Measure) framework (DAPSI(W)R(M)), Ostrom's SES Framework (SESF), and the Systems Approach Framework (SAF) were combined to create an integrated analytical framework (IAF). Finally, the integrated analytical framework was tested in the Community Council of Alto and Medio Dagua (AMDA), Colombia, to assess a water quality problem emanating from anthropogenic activities. The approach seems to be valid and useful for the assessment of social-ecological systems.
- The use of DPSIR and SAF for the management of eutrophication in the Ria FormosaPublication . Gari, Sirak Robele; Newton, Alice; Icely, JohnThe Driver-Pressure-State-Impact-Response (DPSIR) approach considers human activities as an integral part of the ecosystem and brings together natural science, social science and economics in one framework for adaptive management. Systems Approach Framework (SAF) encompasses the ecological, social and economic components of the coastal zones and aims to establish a permanent dialogue between scientists, stakeholders and policy makers in the European coastal zones for developing effective ICZM. The objective of the present study is to find management options for eutrophication of the Ria Formosa through DPSIR and SAF. The objective includes indicating the possibility that the same approaches could also be adapted anywhere in the world for different water bodies. DPSIR approach was used to identify the Drivers, Pressures, State, Impact and Responses as well as environmental indicators in the Ria Formosa. Agriculture and Livestock, Aquaculture and Fishery, Tourism and Urbanization were the major drivers. The pressure was nutrient enrichment. The State revealed itself in considerable nutrient concentration, Macro algal growth, occurrence of HAB in some parts of the lagoon and fluctuating oxygen concentration. The Ecological impact was high clam mortality. The associated decrease in aquaculture products, job loss and human intoxication due to HAB belong to Socio-economic impacts. Earlier Responses include measures against nutrient loading and clam mortality. Additional Responses have been recommended, mainly for reduction of nutrient loading. The four steps of SAF were followed. The stakeholders were identified and the issue of eutrophication was agreed on. Having defined the virtual system, the conceptual model of the Ria Formosa was made. Consequently, the possibility of formulating the conceptual model into a numerical model representing the ecological, social and economic components of the system was discussed. The linking of the three components in a simulation model and running the scenarios was, then, discussed. The deliberation process among the stakeholders and policy makers, the scientific body as facilitator is highlighted. The format by which the final output package is disseminated is suggested. Thus, DPSIR and SAF can be used for the management of eutrophication in any part of the world with the necessary modifications on the basis of resources and system characteristics.
- Water management practices and antibiotic-resistant Pseudomonas aeruginosa contamination in Ethiopian tertiary hospitals: implications for waterborne healthcare-associated infectionsPublication . Hailemichael, Etsub Brhanesilassie; Desta, Adey Feleke; Taye, Girma; Gari, Sirak Robele; Alemu, Amare; Gobena, Waktole; Amogne, WondwossenThe threat of healthcare-associated infections is significantly heightened when caused by drug-resistant pathogens. This study evaluates water management practices and prevalence of antibiotic-resistant Pseudomonas aeruginosa in water systems of two tertiary hospitals of Ethiopia. We employed a mixed-methods approach, combining the qualitative data thematic analysis with quantitative microbiological results from 120 potable water samples. P. aeruginosa isolates were identified and subjected to antimicrobial susceptibility testing. Data collection was conducted between December 2023 and January 2024. The findings indicate that neither hospital had a dedicated water management programme for preventive maintenance. Microbial analysis revealed a 16% prevalence of P. aeruginosa in the water samples, with 26.3% of isolates demonstrating resistant to at least one antibiotic class. Notably, two isolates from the maternity ward of Hospital A exhibited multidrug resistance (MDR) to ciprofloxacin, amikacin, and imipenem. Overall, the structural and operational standard of the water management programmes in both hospitals were found to be non-conformant to international standards. A higher rate of Pseudomonas positivity, including resistant and MDR strains, indicates persistent hospital water contamination and a tangible risk for HAIs. These results underscore the critical need for the formation of multidisciplinary water safety team to optimize water quality management in these hospitals.