Nurse is someone who has a task as a medical asisstant in the hospital. They work for eight hours per day in serving patients and helping out the doctors such as, wound cares, infusions, bathing patients, injecting medical substances, giving medications, moving patients, changing patient clothes, etc, creating a lot of work for them. According to survey of the Indonesian National Nurses Association there are 50.9% of nurses experiencing work stress, dizziness, and fatigue because of high workloads. Therefore, it is necessary to be improved. Objective of this study is to analyse the mental workload of nurses and develop few of recommendations to reduce the mental workload. National Aeronautical and Space Administration Task Load Index (NASA-TLX) is used to evaluate the mental workload based on six variables: mental demand, physical demand, temporal demand, own performance, effort, and frustation level. While the developed improvement uses the participatory ergonomic method which involve nurse, doctor, ergonomist, and designer as stakeholder by implementing a group discussion to determine criteria of enhancement. Statistical analysis is applied to verify the hypothesis. Result of this study shows that the score of NASA-TLX is 62.46, which means the task is overload. As for the result, participatory ergonomic is verified at 5% of significant levels that requires some improvements, including but not limited to administrative activities in the form of making action invoices, physical activity that causes spinal cord injuries was lifting the patients and bending while injecting the patient, and work shift system where morning and afternoon shift longer than night shift.

In all activities, people need memory as information storage. A good memory will make it easier for people to remember so they can do their job well. One of the things that affect memory is the sound of music. Music is commonly used as a stress treatment or as one of the stimuli of human brain memory. Not only classical music can be one of the stimuli of brain memory, but listening to the Quran can also be one of the brain memory stimulants. Several studies have proven that by listening to the Qur'an, the ability of the brain can be increased significantly. In this study used the variables pre and posted Qur'an listening to 50 respondents. Respondents consisted of 26 men and 24 women aged 19-22 years old. All respondents will get two treatments. The first treatment is without listening to murottal and the second treatment is done after listening to the Quran. All respondents will do memory test using the program running memory in software design tools. The results showed that the average ability of short-term memory without listening to murottal 11.8 and the average ability of short-term memory by listening to murottal is 12.62. Based on these results it is known that by listening to the Quran provides a significant increase in the ability of the brain.