abstract background : today, as many as 1.5 million americans use ventilators once in a year. .response to mechanical ventilation alarms remains to be one of the most challenging tasks facing physicians, nurses or other medical personnel in the icu. in the present study we aimed to compare the response times to “vocal alarms” and “visual or audible ones”. methods : in the present study we devel...

Why do we study Is the a acoustic structure in which we are interested to use it for communication? Certainly, belongs to a natural class of acoustic patterns about which we know very little, nam'ely, structured over time by mechanical events--such as a footstep on hand paper, a glass bottle bouncing or breaking communication) 0 If we knew more about the temporally and ly distributed acoustic p...

Objectives: The present study aims to compare acoustic voice parameters in patients with vocal cord nodules, polyps, and normal subjects.  Methods: In this cross-sectional case-control study, the participants were selected by convenience sampling, including 30 patients with vocal polyps group, 38 patients with vocal nodules for the second group, and 42 participants without voice pathologies a...

In many applications, one needs to approximate a filter of very high order with that of lower order. To reduce the order of the filter, some techniques such as balanced model reduction approach are often applied. In this paper, we will introduce a new technique which is based on minimizing the H2-norm between the filter of very high order and the reduced one. This technique shows much better pe...

background:speech is the most important communication tool and is the smooth product of four systems: respiratory, phonatory, resonatory, and articulatory. currently, a variety of voice disorder occurred because of life style and environmental pollutants. vocal nodule is one of the most prevalent disorders in this category. considering the point that the air required for vocal cords vibration i...

Risky behaviors (e.g., binge drinking, drunk driving, risky sex) are increasing among U.S. college students, and the personality trait of sensation seeking provides a potential link between such norm-breaking behaviors and biological processes. We examined the relationship between sensation-seeking behaviors and two hormones, testosterone and cortisol, in male and female college students. Hormo...

case presentation herein, we reported a case of a 22-year-old woman diagnosed with erms, t1n0m0 stage, localized at the right vocal cord. tumor was successfully treated with a radical excision and selective neck dissection and followed-up for 5 years with no evidence of local recurrence. introduction although embryonal rhabdomyosarcomas (erms) represent the most common (50% - 60%) clinical form...