BACKGROUND Echocardiographically determined left ventricular (LV) mass predicts adverse cardiovascular events in the general population. We have assessed the correlates of LV mass in a population-based study focusing on lifestyle and salt intake. METHODS AND RESULTS A random sample of 120 persons born in 1954 was invited; 93 (42 men) entered the study. The subjects' physical activity and alco...

background : sleep apnea is accompanied by some cardiovascular complications. it has even been hypothesized that sleep apnea, itself, can induce some of these complications. given such controversies, we assessed the left ventricular mass index (lvmi) and systolic pulmonary artery pressure in patients with sleep apnea. methods: through convenience sampling, 56 patients with the obstructive sleep...

With the implementation of regional coordinated development strategy, traffic flow has grown explosively. The construction a larger tunnel section becomes an effective way to solve highway network’s insufficient transport capability problem. Currently, there is little research on factors influencing and methods calculating loose pressure in surrounding rock mass for tunnels with super-large cro...

Background: Adrenal hematoma is a very rare acquired cause of neonatal hypertension. In this study, we report a case of neonatal hypertension associated with adrenal hematoma. A male neonate was immediately transferred to our neonatal intensive care unit after delivery due to meconium aspiration. He needed to be on mechanical ventilation support. During his hospital stay, hospital records showe...

The utilization of the lining type in pressure tunnels is highly dependent on the geological and hydraulic conditions. There are two types of lining, namely concrete and steel lining but steel lining is one of the most expensive arrangements. To decrease the length of steel lining in these tunnels, the concrete lining, which prevents water seepage from the surrounding rock mass, is the appropri...

background and objective : obstructive sleep apnea (osa) syndrome is a common sleep-related breathing disorder characterized by repeated episodes of the upper airway collapse during sleep. loud snoring and daytime sleepiness are the main complaints; however, the condition may present with a variety of symptoms and signs. case report : a 65-year-old woman was admitted to neurology ward with the ...

the effect of γ-al2o3 nanoparticles on heat transfer rate, baffle spacing and pressure drop in the shell side of small shell and tube heat exchangers was investigated numerically under turbulent regime. γ-al2o3-water nanofluids and pure water were used in the shell side and the tube side of heat exchangers, respectively. since the properties of γ-al2o3-water nanofluids were variable, they were ...