https://ir.vidyasagar.ac.in/jspui/handle/123456789/34 HWWE 2013 2026-04-26T06:08:50Z https://ir.vidyasagar.ac.in/jspui/handle/123456789/250 Title: Trip-Hit Accidents and Safety: Human Error Psychology and Influence of the Subconscious Mind in Preventing and Causing Trip Hit Accidents Authors: Yadunath, R Varma; Jeyapaul, R Abstract: Much of the trip-hit accidents in industry or home are of false or mis-cognitive causes. The victim was in a situation where the person failed to judge the position of the obstacle and his psychomotor system misunderstood the environment and thus caused the trip or hit. When a person does the same job repeatedly, the person’s subconscious mind learns how to do it. Hypothesis was that during a repetitive activity when our sub conscious mind is taking control of it, we tend to make an error or accident in the activity if the activity environment changes because our sub conscious may fail to recognize the change in the work environment”. A wire-loop activity game was designed for the purpose of experiment. The experiment is essentially a hand-eye coordination task wherein the subject has to traverse a loop along a central wire without touching it.. Several parameters were varied during the experimental run without the subject noticing it which tested the psychological, cognitive and other response factors of the subjects.The experimental results proved the hypothesis. It was observed that when the subject was carrying out the task with his subconscious mind and when the work environment (task) was altered, the subject made more number of errors. Also on comparison of gender, females tend to show greater working capacity with their subconscious mind than males. Description: Physical and Cognitive Ergonomics 2015-01-01T00:00:00Z https://ir.vidyasagar.ac.in/jspui/handle/123456789/249 Title: Study on Hearing Status of Children Residing Near an Airport Authors: Chatterjee, Ayan; Chatterjee, Sandipan; Banerjee, Neepa Abstract: ndia being an emerging economy, the air traffic movement rate has increased many folds in recent times. As aircrafts produce considerable noise particularly during takeoff and landing, people, including children, inhabiting the neighboring areas of any busy airport get exposed to a lot of noise. In this backdrop, a study was carried out to assess the impact, if any, of airport noise on the hearing status of children staying near an airport. Few educational institutions located near the international airport in Kolkata were approached for carrying out the study. After obtaining permission from the concerned authorities, the assessment was carried out on volunteers from the consenting schools. Initially the sound pressure level was measured at different locations within the institution at periodic intervals. Audiometric assessment was thereafter carried out on fifty - four male students (age range 11-16 years), who were permanent inhabitants of the locality. Forty – eight male students of comparable age group, permanently residing in remote areas in other districts, far away from the airport, constituted the control group. Results indicate that exposed group children, that is, those residing in the vicinity of the airport, had significantly more hearing loss at speech frequency, and compared to the control group children. Degree of impairment was also calculated at 4 kHz and 6 kHz. From the present study it may be concluded that hearing status of children residing in the vicinity of the airport area is getting affected. Description: Environmental Ergonomics 2015-01-01T00:00:00Z https://ir.vidyasagar.ac.in/jspui/handle/123456789/248 Title: A Study on Assessment of Hand Grip Strength in Medical Laboratory Technicians Authors: Maulik, Shreya; Iqbal, Rauf; De, Amitabha; Chandra, Ananga Mohan Abstract: Measuring grip strength is an important part of hand injury evaluation. Hands undergo many physiological and anatomical changes with aging, though these effects on hand function are still poorly understood. The aim was to assess the hand grip strength among medical laboratory technicians in India. The cross sectional study was carried out among 108 medical laboratory technicians in the age group of 20 to 50 years and 38 subjects as control group from Mumbai and Kolkata. Hand grip strength has been measured with the help of using Jamar Hand Grip Dynamometer. The results indicated that there is an increase of hand grip strength up to the age of 40 years and 35 years in males and females respectively. Thereafter there is a gradual decline in the strength for the medical laboratory technicians. The primary factor for this is aging, and consequent decline of muscle mass. The other contributing factors are lack of body activity, improper work schedule and inappropriate design of tools, etc. There was a significant difference in the means of handgrip strength between males and females in all age groups. The dominant hand shows greater handgrip strength than the non dominant hand in both males and females and the difference was highly significant (p<0.05). There was a positive significant correlation between age and grip strength in the dominant hand (p<0.05). Description: Occupational Health and Ergonomics 2015-01-01T00:00:00Z https://ir.vidyasagar.ac.in/jspui/handle/123456789/247 Title: Study of Milling Machines Using RULA Authors: Bhattacharya, Amrita; Kashif, Md; Banerjee, Debamalya Abstract: In laboratories and workshops, milling machine is one of the most important common machines to use. Students and lab assistants of Jadavpur University spend a great deal of time working on milling machine. The design of a machine is proved to be successful only when it is ergonomic. Thus the analysis on the correct posture of work becomes important. Undergraduate students of Production engineering and Lab assistants were subjected to Rapid Upper Limb Assessment(RULA) while working on milling machine to test if the design of the machine is ergonomic or not. The assessment concludes that posture while working on milling machine is not ergonomic. Thus the necessity to make it ergonomic increases. A few remedies have been suggested here after a detailed study of the work. Application of these remedies will reduce the risk of working on a milling machine in a workstation to a certain extent. Description: Design Ergonomics 2015-01-01T00:00:00Z