Perceived risk factors in the process of closure and greening of the Lupeni mining operation for the miner workplace

Determining the risk factors of a job is a process that requires many studies. Determining risk factors is necessary to prevent accidents at work. The process of closing and greening the Lupeni Mining Exploitation is a very complex one. The closure of the mining operation is done in stages for the underground and the surface based on a closure project. When implementing the closure and greening project, all occupational safety and health regulations must be observed. As part of the process of closing and greening a mining operation, it is necessary to redo the risk factor assessment sheets with additional measures for the closure and greening of the mining operation. In this paper we intend to establish the risk factors for the miner workplace within the Lupeni Mining in the process of closure and greening.

The Development of a Bayesian Network Framework with Model Validation for Maritime Accident Risk Factor Assessment

An integrative approach to maritime accident risk factor assessment in accordance with formal safety assessment is proposed, which exploits the multifaceted capabilities of Bayesian networks (BNs) by consolidation of modelling, verification, and validation. The methodology for probabilistic modelling with BNs is well known and its application to risk assessment is based on the model verified though sensitivity analysis only, while validation of the model is often omitted due to a lack of established evaluation measures applicable to scarce real-world data. For this reason, in this work, the modified Lyapunov divergence measure is proposed as a novel quantitative assessor that can be efficiently exploited on an individual accident scenario for contributing causal factor identification, and thus can serve as the measure for validation of the developed expert elicited BN. The proposed framework and its approach are showcased for maritime grounding of small passenger ships in the Adriatic, with the complete grounding model disclosed, quantitative validation performed, and its utilization for causal factor identification and risk factor ranking presented. The data from two real-world grounding cases demonstrate the explanatory capabilities of the developed approach.

Efficacy and risk factor assessment of outcomes of self-expanding metal stents deployed in advanced oesophageal cancer: a case series of 69 patients from a tertiary referral centre of South India

Background: In India, Oesophageal cancer ranks as the 6th most common cause of cancer-related deaths. SCC is the most common histology with middle and lower third of the oesophagus as most common location. Often, it is diagnosed in elderly individuals with multiple comorbidities, and at an advanced stage with malignant strictures, where SEMS is treatment of choice. The current retrospective study aims to evaluate efficacy and the risk factor assessment of outcomes of SEMS deployment in patients with advanced oesophageal cancer.Methods: All consecutive patients referred to Department of SGE and LT of BMCRI, with advanced oesophageal cancer from March 2012 to October 2019 were studied. Patients details viz. demography, dysphagia grade, stricture details and SEMS related adverse events and 30-day, 90-day and long-term mortality data was charted and significance of these study parameters along with survival analysis was carried out by using relevant statistical tools.Results: Of the 69 patients, SCC in mid-oesophagus was the most common presentation. 36 patients (52.2%) received prior CRT, TEF (n=11) and distant metastasis (n=7). SEMS intention was palliation in all patients. Overall procedural success using 'Endoscopy alone' was achieved in all 69 patients (100%). Post SEMS period uneventful (n=36), transient haemorrhage (n=5) patients, aspiration (n=11), tumour overgrowth and ingrowth (n=11), SEMS on SEMS (n=5), double SEMS for TEF (n=2). Significant adverse events necessitating reinterventions were seen in 17 patients (24.5%). Kaplan-Meier graph showed lower survival in patients with metastasis and TEF and no statistical difference in-terms of adverse events was noted based on fully covered versus partially covered SEMS.Conclusions: SEMS aids in early resumption of oral feeds and the outcomes of fully covered and partially covered SEMS are comparable in a palliative setting.