Related Experiment Video
Updated: Jan 22, 2026

Enhanced Northern Blot Detection of Small RNA Species in Drosophila Melanogaster
Published on: August 21, 2014
Workplace Homicides in Northern Tunisia: A 15-Year Study (2003-2017)
Mehdi Ben Khelil1,2, Meyssa Belghith1,2, Ahmed Chraiti2
1From the Department of Legal Medicine, Charles Nicolle Hospital.
Background:
Death in workplaces remains a public health issue. However, data regarding workplace homicides are scarce in most of regions, especially in the Arab world. The aim of our study was to analyze the epidemiological features of workplace homicides in northern Tunisia.
Materials And Methods:
This is a descriptive study with retrospective data collection over a 15-year period (January 2003 to December 2017).
Results:
We recorded 50 workplace homicide cases. Sex ratio was 49:1 (male/female). The mean age was 41.6 ± 15.13 years. Occupations the most at risk were security guards (odds ratio, 8.25; 95% confidence interval, 4.28-15.91; P < 0.0001) and taxi drivers (odds ratio, 5.61; 95% confidence interval, 2.39-13.18; P < 0.00001). The motive of the aggression was either interpersonal conflict or robbery (47.9% and 43.8%, respectively). Victims working as security guards or taxi drivers were most frequently assaulted by an unknown perpetrator, the motive being robbery. Death was most frequently secondary to blunt trauma (n = 20) or stab wounds (n = 15).
Conclusions:
Workplace homicides represent a substantial phenomenon in Tunisia. The application of prevention measures is required based on improving environmental measures targeting, in priority, security guards and taxi drivers.
Related Concept Videos
Other Nuclides: 31P, 19F, 15N NMR
While fluorine-19 and phosphorous-31 have high natural abundances (100%) and positive gyromagnetic ratios, nitrogen-15 has a low natural abundance and a negative gyromagnetic ratio. However, nitrogen-15 is still preferred over nitrogen-14 (which has a...
Case Studies
Imaging Studies I: Kidney, Ureter, and Bladder Studies
Longitudinal Studies
Observational Studies
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One...
Studying the Cytoskeleton

