variability of tidal volume and respiratory rate in normally breathing man has long been demonstrated [1]. however because of lack of knowledge and technology primary ventilators could only deliver a fixed tidal volume in a fixed rate the so called volume controlled ventilation (vcv). vcv was volume preset time triggered and cycled and there was no synchronization with patient’s breaths. at tha...

objective: several medications have been used for sedation in children in dentistry and intra-nasal route has been reported to be an efficient way regarding patient cooperation. the aim of the present study was to compare the changes in physiologic parameters following intra-nasal midazolam and ketamine administration.   methods: in this randomized cross-over double-blind trial, 17 uncooperativ...

the aims of this study were to determine some major biochemical alterations observed in first calving cows with udder edema during the periparturient period and to detect some associations between dietary factors and the disease. for that, the concentrations of some electrolytes (na+, k+, cl, ca2+, p and mg2+), lipid (triglycerides and cholesterol) markers and lipoproteins (hdl, ldl and vldl) a...

objective: to compare the effect of the physiologic and facilitated labor on the mother and neonate outcomes in the prim gravid women referring to arash hospital. materials and methods: this clinical trial study was performed on 200 low risk pregnant women referring to arash women's hospital in 2012-2013. mothers were divided into two groups of 100 patients using a simple random sampling method...

in order to study planting date impacts and ending season drought stress  on grain yield and  gaining weight  rate  and wheat filling period characteristics in new advanced bread wheat genotypes ,this research  is done by using plan statistical  of spilt plot  in form of complete random blocks basic  plot with 3 replications in both common separated irrigation  and ending season drought  stress...