BACKGROUND The age standardised death rate from motor neuron disease (MND) has increased from 1.29 to 2.74 per 100,000, an increase of 112.4% between 1959 and 2013. It is clear that genetics could not have played a causal role in the increased rate of MND deaths over such a short time span. We postulate that environmental factors are responsible for this rate increase. We focus on lead additive...

The biological effect of putative genotoxic chemicals in the work place environment was monitored in peripheral mononuclear blood cells of exposed workers. DNA strand breaks, alkali-labile sites of DNA and DNA cross-links were measured using the alkaline filter elution method. A dose dependent increase in DNA damage was found in sterilization workers exposed to ethylene oxide and metal workers ...

We consider a two-station tandem queueing system where customers arrive according to a Poisson process and must receive service at both stations before leaving the system. Neither queue is equipped with dedicated servers. Instead, we consider three scenarios for the fluctuations of workforce level. In the first, a decisionmaker can increase and decrease the capacity as is deemed appropriate; th...

We consider a two-station tandem queueing system where customers arrive according to a Poisson process and must receive service at both stations before leaving the system. Neither queue is equipped with dedicated servers. Instead, we consider three scenarios for the fluctuations of workforce level. In the first, a decision-maker can increase and decrease the capacity as is deemed appropriate; t...

Allergic Rhinitis (AR) is a chronic immune system inflammation that occurs when the body overreacts to antigens in environment (triggers) and produces variety of symptoms nasal mucosa paranasal sinuses due release many interleukins cytokines. We investigated influence allergen on serum levels TNF-α Total IgE patients with AR their function initiating allergic rhinitis Iraqi petrol station worke...

The purpose of this study was to compare symptoms of PTSD among war affected people and employees in the fire station. Totally, 60 people affected by war and 60 fire workers were selected using simple random sampling. By completing PCL inventory, samples of PTSD were characterized. Data was analysed through SPSS software by independent t-test. As the results showed, severity of PTSD symptoms am...

Inahalant abuse is of increasing interest in India. The age of onset is typically during adolescence. Gasoline inhalant use is rarely reported in adolescents with intellectual deficit. We report a case of petrol dependence in a 10-year-old child with mental retardation. Possible effect of petrol huffing on behavior and cognition is discussed.