Sudden pipe expansions have been known as efficient hydraulic energy dissipaters for a long time. The complex phenomenon of flow separation and velocity discontinuity at the interface of incoming jet and the recirculation flow, results in intensive shear and tensile rupture of the fluid and the associated destructive phenomenon of cavitation. This paper focuses on aeration in sudden pipe expans...

background the early repolarization pattern (erp) has been considered a normal variant in electrocardiography (ecg) for a long time. nevertheless, increasing evidence has demonstrated its association with adverse outcomes. objectives the present study aimed to evaluate the prevalence of erp in the iranian general population and demonstrate its clinical and ecg correlates. methods a cross sectio...

background: tramadol is a widely used centrally acting opioid analgesic and due to its ease of access in iran as an over-the- counter drug, reported cases of intoxication are rising. case: a 19-year-old male who was referred to our center, noor hospital, isfahan university of medical sciences, isfahan, iran, because of confusion, ataxia, agitation and an episode of seizure, followed by intentio...

Background and Objectives: In spite of large number of studies conducted so far, sudden cardiac death remains an enigma and relative importance of acute coronary events as a trigger of sudden death is currently unclear. An autopsy study of heart was therefore planned to observe various histomorphological cardiac changes, and to determine the frequency association of acute coronary events and my...

Introduction: Sudden sensorineural hearing-loss (SSNHL) patients constitute approximately 2–3% of referrals to ear, nose and throat (ENT) clinics. Several predisposing factors have been proposed for this condition; one of which is vascular disorders and perfusion compromise. In this research the atherosclerotic changes and their known risk factors are studied in SSNHL patients.   Materials and ...

BACKGROUND Out-of-hospital sudden cardiac death (SCD) is a frequent cause of death. Survival rates remain low despite increasing efforts in medical care. Better understanding of the circumstances of SCD could be helpful in developing preventive measures and facilitating proper reactions to such a pending event. METHODS AND RESULTS Information on cases of out-of-hospital SCD was collected in t...

background and objectives: in spite of large number of studies conducted so far, sudden cardiac death remains an enigma and relative importance of acute coronary events as a trigger of sudden death is currently unclear. an autopsy study of heart was therefore planned to observe various histomorphological cardiac changes, and to determine the frequency association of acute coronary events and my...

although death is a gradual process, sometimes sudden death occurs in a fraction of a minute or seconds. here we report a 49-year-old man without any underlying disease, which has instantly died in an accident scene due to compression of neck critical elements by a three-point seat belt. the examination of the body and the results of the autopsy, toxicology and pathology tests are described fro...

background: cyanide poisoning is frequently lethal, because of the early onset of severe symptoms and difficulty in the diagnosis. case: the case was a 29-year-old boy who collapsed suddenly after taking a bottle of beer in a bar. samples, such as peripheral blood, stomach contents, bile fluid, urine and mouth swabs, were prepared using standard autopsy procedure and were subjected to analysis ...