نتایج جستجو برای: 2007 broken stick
تعداد نتایج: 172899 فیلتر نتایج به سال:
Why can we balance a yardstick but not a pencil on the tip of our finger? As with other physical systems, human motor control has constraints, referred to as bandwidth, which restricts the range of frequency over which the system can operate within some tolerated level of error. To investigate control bandwidth, the natural frequency of a stick used during a stick-balancing task was modified by...
background injuries with sharps are common occupational hazards for healthcare workers. such injuries predispose the staff to dangerous infections such as hepatitis b, c and hiv. objectives the present study was conducted to investigate the behaviors of healthcare workers in kashan healthcare centers after needle sticks and injuries with sharps in 2012. materials and methods a cross-sectional s...
BACKGROUND Penetrating injuries of the perineum are rare but very dangerous. Since the genitourinary and colorectal organs may be injured, how to evaluate surgical management of the injury is very important. METHODS The present report presents a case of penetrating injury of the perineum by a wooden stick when the patient fell on the upright wooden stick from a tree. The three feet long stick...
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