: Water preparation for industrial use commonly involves a multi-stage approach to raw water treatment. The selection of individual treatment operations is based on various factors. Adherence to regulations and standards on water quality for a specific purpose is of key importance, as the entire treatment process should meet or exceed applicable regulatory standards. In the selected plant for the preparation of industrial water, an evaluation of the efficiency and economy of the process was carried out by comparing the results of water analysis before and after each treatment, by reviewing the justification of the location of the process units in the treatment line, and by analyzing the selected process parameters. The results of water analyzes confirmed that adequate selection and location of unit operations in the raw water treatment line can have multiple beneficial effects in meeting water quality requirements for the desired purpose.

It is estimated that 1 to 2% of the population in developed countries will experience a chronic wound during their lifetime. Nurses are leaders in applying innovations that can create positive results in preventing and treating chronic wounds in patients admitted to acute care hospitals. The aim of the research is to examine the knowledge of nurses-technicians about the knowledge of measures for the prevention and treatment of chronic wounds. In the research of knowledge on the treatment of chronic wounds, 349 respondents participated, employed at the primary and tertiary levels of health care. For the purposes of the research, the authors created a questionnaire based on a review of professional and scientific literature, as well as evidence in practice. The research was conducted through the Chamber of Nurses-Technicians of Sarajevo Canton and the Chamber of Tuzla Canton. Respondents from Sarajevo Canton worked significantly longer in practice, and 36.2% of respondents worked from 21 to 30 years, and 10.9% of respondents worked longer than 30 years, while among respondents from Tuzla Canton 34.8% of them, worked from 21 to 30 years and 9.9% worked for more than 30 years. 43.9% of respondents from Tuzla Canton and 39.6% of respondents from Sarajevo Canton had a certificate for the care of chronic wounds ( X 2 = 9.077; p = 0.028). The assessment of knowledge is in a direct positive relationship with the level of health care (rho = 0.187; p = 0.001).

Aim: To investigate whether additional treatment of ischemic heart disease with trimetazidine, proper nutrition and physical activity could decrease the number of rehospitalizations and overall quality of life of patients with ischemic heart disease. Methods: The study included 200 patients with ischemic heart disease. The sample is divided into 2 randomly selected groups: the experimental and control group. The diagnostic procedures included: trade-mill test according to Bruce protocol, heart ultrasound for assessment of ejection fraction, test for the assessment of quality of life and subjective problems (Short Form SF 36). Patients were tested on time of discharge from hospital, after 6 and 12 months, including reevaluation of the overall condition of the previous period. Results: Patients have been tested for the endurance of effort with the measurement Metabolic Equivalent of TASK (METs) which is the equivalent of physical labor. Patients treated with trimetazidine since the time of hospital discharge have achieved an average of 3.68, after 6 months 5.68, and after 12 months 7.79 METs. Control and experimental groups showed a significant difference in the number of hospitalizations for the periods of 6 months and 12 months after treatment. Fewer hospitalizations were in the group treated with trimetazidine than in those with only conventional therapy after 6 and 12 months. There is a significant difference in values Respondents' attitudes about how much they shortened their time at work or other activities as a result of physical health before starting therapy (Ppt <0.001), as well as for a period of 12 months after starting therapy shows a significant difference (P12 <0.001). The results we have for HDL and LDL after the clinical study show that patients who were on conventional therapy and trimetazidine and who used a proper diet as well as those who had physical activity, that their HDL and LDL values were better than at the beginning studies. Conclusion: Patients treated with conventional therapy including trimetazidine have better tolerance to effort and fewer hospitalizations in the comparison with those treated without trimetazidine, so trimetazidine has a beneficial effect on reducing the number of hospitalizations and productiveness at work and improving the quality of life. They had a better lipid status compared to patients who only used conventional therapy. BMI index was better in patients who used trimetazidine along with conventional therapy and had better psychological health.

<p>Waste management is becoming an increasingly important factor in the context of climate change, particularly due to methane emissions from landfills, which have a significantly stronger warming effect than carbon dioxide. The City of Prnjavor, facing challenges related to the growth of municipal waste and limited infrastructure, represents a representative example of a local community in transition toward a more sustainable waste management system. The aim of this research is to assess greenhouse gas (GHG) emissions from the waste sector and identify optimal strategies for their reduction.</p> <p>The methodology is based on the IPCC Tier 1 approach for GHG emission estimation, applied to three waste management scenarios: full landfilling, partial recycling, and a combination of recycling and composting. The analysis includes emissions from waste collection, transport, and final treatment, as well as avoided emissions resulting from the processing of recyclable and biodegradable fractions.</p> <p>Results show that the scenario combining recycling and composting can reduce total GHG emissions by 37% compared to the baseline scenario.</p> <p>The conclusions suggest that transitioning to selective waste collection and treatment, along with strengthening institutional capacities, has the potential to enable efficient emission reductions and improve the waste management system, without the need for major infrastructure investments.</p>