BACKGROUND A feasibility trial was conducted to evaluate the initial safety and clinical use of a next-generation artificial cervical disc (M6-C artificial cervical disc; Spinal Kinetics, Sunnyvale, CA) for the treatment of patients with symptomatic degenerative cervical radiculopathy. A standardized battery of validated outcome measures was utilized to assess condition-specific functional impa...

we present a case of caustic ingestion by a 1.5-year-old boy. the caustic agent was drain opener which is a strong alkaline substance. children in iran and many other countries are still exposed to not “child proof” (child resistant packaging) toxic substance containers. ingestion of caustic agents may lead to necrosis, perforation, and strictures. substances that are ingested more frequently a...

a total number of 67 workers of teheran battery workshops were investigated for probable lead absorption due to the working with lead storage batteries. twenty workers with other occupations were selected as control group. blood and urine analysis were carried out for both groups. lead content of the urine in about 95.5% of the subjects was below 10 μg/100 ml. two subjects showed higher concent...

The majority of foreign body ingestions occur in children between the ages six months and three years. Most cases are brought to medical attention by a child's caregivers following witnessed or reported ingestion. Many asymptomatic have transient symptoms at time Clinical management focuses on identifying treating risk for complications, which depend location type body. A battery lodged esophag...

Output power in a hybrid power system is constant while the input power with variable characteristics that is generated by different sources. Using Hybrid Electrical Energy Storage (HEES) systems, is growing rapidly since there is an obvious need for clean energy. This paper introduces different parts of a HEES system and then proposes HEES systems which employ battery, ultracapacitor and f...

The Energy Storage System (ESS) is an expensive component of an E-bike. The idea of Hybrid Energy Storage System (HESS), a combination between battery and Ultra-Capacitor (UC), can moderate the cost of E-bike ESS. In this paper, a cost function is developed to use for optimal sizing of a HESS. This cost function is consisted of the HESS (battery, UC and DC/DC converter) cost and the cost of bat...