{"id":{"repo_id":"njit","oai_identifier":"oai:digitalcommons.njit.edu:theses-1037"},"canonical_url":"https://search.dev.ndltd.org/etd/njit/oai:digitalcommons.njit.edu:theses-1037","repository":{"repo_id":"njit","name":"NJIT","base_url":"https://digitalcommons.njit.edu/do/oai/"},"display":{"title":"Effects of 8 and 12 hour non-rotating shift schedules for security and protective services workers","abstract":"Shiftwork is a major feature of working life in today’s world. Increasing the workday length is a new trend in alternative work schedules. The features of a shift system operation can have an impact on sleep, alertness, and the well-being of shift workers. The objective of this study is to evaluate security and protective services employees working in non-rotating shift systems of 8- hour and 12-hour schedules. New Jersey Institute of Technology’s Public Safety Department staff was studied to examine how non-rotating shift schedules affect sleep, alertness, and wellness under five different work schedules. A survey instrument, approved by the Institutional Review Board was used to acquire data from the participants (n=39). The survey included 29 questions covering alertness, sleep habits, and wellness factors. The survey data were statistically analyzed using single factor ANOVA to compare a 12 h compressed work schedule to an 8 h regular work schedule. The results of the study strongly support (p<0.10) the hypothesis that a decreasing level of alertness, and increasing sleep and health problems are associated with a non-rotating 12 h shift. These findings are similar to those of previous researchers highlighting the negative effects of a 12 h rotating shift on workers.","abstract_html":"Shiftwork is a major feature of working life in today’s world. Increasing the workday length is a new trend in alternative work schedules. The features of a shift system operation can have an impact on sleep, alertness, and the well-being of shift workers. The objective of this study is to evaluate security and protective services employees working in non-rotating shift systems of 8- hour and 12-hour schedules. New Jersey Institute of Technology’s Public Safety Department staff was studied to examine how non-rotating shift schedules affect sleep, alertness, and wellness under five different work schedules. A survey instrument, approved by the Institutional Review Board was used to acquire data from the participants (n=39). The survey included 29 questions covering alertness, sleep habits, and wellness factors. The survey data were statistically analyzed using single factor ANOVA to compare a 12 h compressed work schedule to an 8 h regular work schedule. The results of the study strongly support (p&lt;0.10) the hypothesis that a decreasing level of alertness, and increasing sleep and health problems are associated with a non-rotating 12 h shift. These findings are similar to those of previous researchers highlighting the negative effects of a 12 h rotating shift on workers.","abstract_has_math":false,"creators":["Aydin, Zuleyha"],"institution":null,"degree_name":"Master of Science in Occupational Safety and Health Engineering - (M.S.)","degree_level":null,"degree_discipline":"Mechanical and Industrial Engineering","degree_department":null,"school":null,"contributors":["Arijit K. Sengupta","Athanassios K. Bladikas","Samuel Lieber"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2017,"date_issued":"2017-12-31T08:00:00Z","date_published":"2017-12-31T08:00:00Z","updated_at":"2026-07-24T03:22:07Z","subjects":["Shiftwork","Impact on sleep","Impact on alertness","Impact on well-being","Occupational Health and Industrial Hygiene"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://digitalcommons.njit.edu/theses/38","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Arijit K. Sengupta","Athanassios K. Bladikas","Samuel Lieber"]},{"key":"dc:creator","label":"Author","values":["Aydin, Zuleyha"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical and Industrial Engineering"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science in Occupational Safety and Health Engineering - (M.S.)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Shiftwork","Impact on sleep","Impact on alertness","Impact on well-being","Occupational Health and Industrial Hygiene"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://digitalcommons.njit.edu/theses/38"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Shiftwork is a major feature of working life in today’s world. Increasing the workday length is a new trend in alternative work schedules. The features of a shift system operation can have an impact on sleep, alertness, and the well-being of shift workers. The objective of this study is to evaluate security and protective services employees working in non-rotating shift systems of 8- hour and 12-hour schedules. New Jersey Institute of Technology’s Public Safety Department staff was studied to examine how non-rotating shift schedules affect sleep, alertness, and wellness under five different work schedules. A survey instrument, approved by the Institutional Review Board was used to acquire data from the participants (n=39). The survey included 29 questions covering alertness, sleep habits, and wellness factors. The survey data were statistically analyzed using single factor ANOVA to compare a 12 h compressed work schedule to an 8 h regular work schedule. The results of the study strongly support (p<0.10) the hypothesis that a decreasing level of alertness, and increasing sleep and health problems are associated with a non-rotating 12 h shift. These findings are similar to those of previous researchers highlighting the negative effects of a 12 h rotating shift on workers."]},{"key":"dc:title","label":"Title","values":["Effects of 8 and 12 hour non-rotating shift schedules for security and protective services workers"]}]}],"canonical_facts":{"dc:contributor":["Arijit K. Sengupta","Athanassios K. Bladikas","Samuel Lieber"],"dc:creator":["Aydin, Zuleyha"],"dc:description.abstract":["Shiftwork is a major feature of working life in today’s world. Increasing the workday length is a new trend in alternative work schedules. The features of a shift system operation can have an impact on sleep, alertness, and the well-being of shift workers. The objective of this study is to evaluate security and protective services employees working in non-rotating shift systems of 8- hour and 12-hour schedules. New Jersey Institute of Technology’s Public Safety Department staff was studied to examine how non-rotating shift schedules affect sleep, alertness, and wellness under five different work schedules. A survey instrument, approved by the Institutional Review Board was used to acquire data from the participants (n=39). The survey included 29 questions covering alertness, sleep habits, and wellness factors. The survey data were statistically analyzed using single factor ANOVA to compare a 12 h compressed work schedule to an 8 h regular work schedule. The results of the study strongly support (p<0.10) the hypothesis that a decreasing level of alertness, and increasing sleep and health problems are associated with a non-rotating 12 h shift. These findings are similar to those of previous researchers highlighting the negative effects of a 12 h rotating shift on workers."],"dc:identifier":["https://digitalcommons.njit.edu/theses/38"],"dc:subject":["Shiftwork","Impact on sleep","Impact on alertness","Impact on well-being","Occupational Health and Industrial Hygiene"],"dc:title":["Effects of 8 and 12 hour non-rotating shift schedules for security and protective services workers"],"dc:type":["Thesis"],"thesis:degree_discipline":["Mechanical and Industrial Engineering"],"thesis:degree_name":["Master of Science in Occupational Safety and Health Engineering - (M.S.)"]},"updated_at":"2026-07-24T03:22:07Z"}