نشریه هوزان
سال سوم شماره 5 (2019)

Lighting, as an effective physical parameter, has a significant impact on the performance of employees. Lighting of faculty, a place where students, officers, and teachers stay a long time, has the most importance. The lighting illumination, hence, should be standard to make them less tired. This study, in this vein, aimed the evaluation and measurement of lighting intensity in the school of nursing and midwifery, Saveh University of medical sciences in 2020.

This study, as a cross-sectional study, was carried out over one month in classrooms, official rooms, teacher’s rest rooms, laboratories, staircases, and studying halls.  IESNA (Illuminating Engineering Society of North America) guideline used to measure the illumination intensity. After that, the collected data is managed by SPSS 21 and then presented by using suitable descriptive indices.

Based on our results, the illumination intensity for 57% of classrooms and all other places were in accordance with an acceptable range.

As the obtained results show, inappropriate lighting was only for classrooms which needs to be corrected by a suitable intervention. Generally, inappropriate lighting and using excessive un-natural light may result in visual tiredness during daily work.

In almost all developed and developing countries, ATMs, as a very convenient tool for banking services, are widely used. As ATMs are among the equipment consuming a large number of papers, the present study was done to determine the amount of paper consumption from Saveh ATMs Banking Systems in 2020.

In this cross-sectional study, all of the banks and a number of Saveh ATMs are studied by capitation sampling method. In this regard, the required data for each bank is collected by using a research-made checklist. Furthermore, type and rate of paper consumption for each bank ATM collected. The obtained data, then, is managed by Excel software and is presented by using suitable statistics indices.

The obtained results show that Melli and Saderat banks have the most numbers of ATMs devices in Saveh.  According to the results, the average paper production weight was 76.5 g for each ATM system per day. The highest transaction rates obtained during 10-13 and 20-21 o’clock in which the paper consumption rate for the former.  In addition, the most paper consumption was on Saturday, Sunday, and Tuesday of August, February, and March.

Based on the results, the consumption rate of ATM paper is remarkably high; therefore, it can be considerable issue environmentally and economically.

Disability is a set of physical and mental disorders preventing individuals to continue living y and to keeping on social activities, independently and personally, People with disabilities experience more restrictions for their education and employment. Since the hope is considered as an important element for creating a positive image of oneself and attitudes towards the future of disable people, the present study examined the effect of physical disability on life expectancy of a cosmetic factory Workers.

In this study data were collected using demographic questionnaire and hope questionnaire Snyder (1991). Data was analyzed by using statistical tests including Mann-Whithney and Kruskal Wallis test of SPSS software v.22 (α= 0.05).

According to demographic questionnaire results,52% of workers were healthy and 48% of them were disable. 18.6% of disable workers, suffered from mobility disabilities. Also, the result of hope questionnaire Snyder showed a significant relationship between score of life expectancy and contract worker of factory and center for the disabled (P=0.011).

No significant relationship between score of life expectancy and type of disability, status physical, position job, and business unit was seen. Based on the finding of this study, it can be concluded that the employment of people with disabilities and their job security increase their life expectancy.

High concentrations of ammonia in drinking water resources can cause complications and diseases in human, as well as environmental problems such as eutrophication. The aim of this study was to investigate the removal of ammonia nitrogen from wastewater using the nitrification and modeling by response surface method (RSM).

Experiments were performed in a batch mood and in a laboratory scale by evaluating the amount of ammonium in effluent. The ammonium removal efficiency was optimized according to RSM and the central composite design (CCD).

The results of this study showed that by increasing the contact time and decreasing the ammonium load, the efficiency of the system was increased. The best conditions for nitrification were determined as follows; 38 hours of hydraulic retention time and 173.6 mg/L of inlet ammonium concentrations. Under this condition a maximum efficiency of about 70% was obtained.

Due to the high correlation coefficients, the ammonium removal model was significant and the surface response method was a suitable method for optimizing and modeling.