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Stress is one of the most important psychosocial risks and it can produce, among other things, different degrees of anxiety, in work life, in studies or in any field of activities carried out by human beings. Anxiety is a state of mind and a physiological response of the person when facing a situation that causes anguish, fear and mental and emotional blockage. Among young university students, this occurs to a greater or lesser degree and is often not diagnosed or evaluated in its true magnitude. The Covid 19 pandemic has generated a radical change in the teaching modality that has gone to a virtual learning, which has aggravated the usual anxiety levels in students. The aim of this study was to examine the anxiety level of industrial engineering students of different academic levels, in this pandemic environment, to help them cope with this problem. To do this, a study sample was taken and an evaluation instrument was applied that allowed these levels to be established. Relationships were established with the number of credits taken on average and the study cycle of the students in the sample. The results show significant information that can help academic leaders and students themselves to take measures that help improve their anxiety levels.

This work proposes a practical methodology for the evaluation and control of ergonomic risks in construction and building works. The methodology starts with the Analysis of Working Conditions for Risk Identification, and then selects the critical positions using techniques such as the hierarchical analytical method or the criteria comparison matrix. The next step is to determine the ergonomic tools to be used per workstation, and once the evaluations are completed, the results of the risk level and the recommended actions are considered as a basis for improvement proposals. Of particular importance at this stage is the use of the Ruler tool for angle measurement. The improved positions are re-evaluated to verify the favorable changes from an ergonomic point of view and, in addition, risk level values are compared before and after the implementation of proposals. Finally, the methodology includes an implementation plan and an economic evaluation, to decide whether it is appropriate to invest in ergonomic improvements. Improvements are observed in accident indicators related to the presence of ergonomic risks, while evaluating the opportunity cost related to potential savings for the organization related to absenteeism, staff turnover, costs related to medical breaks and potential fines for non-compliance with legal regulations. Finally, it is concluded that there is a potential profitability and feasibility of the ergonomic interventions applied and proposed.