Abstract The chemical composition dependence of the Bi(Mg 0.5 Ti )O 3 (BMT)-modified BaTiO (BT)-BiFeO (BF) ceramics fabricated by a solid-state synthesis was studied. effects BT/BF ratios and BMT concentration on crystal structure, piezoelectric, ferroelectric properties were investigated. structure study carried out under synchrotron radiation X-ray diffraction revealed change from rhombohedra...

We have studied adrenergic function in vivo during anaesthesia and surgery. Epinephrine 50 ng kg-1 min-1 was given by i.v. infusion over 30 min to 10 healthy adult volunteers and to 10 patients undergoing abdominal operations. The cAMP response to stimulation by epinephrine, which was obtained as the area under the curve (AUC) for plasma cAMP concentration divided by the AUC for plasma concentr...

We studied the relationship between bilirubin concentrations in amniotic fluid and fetal blood in 68 non-hydropic rhesus d-alloimmunized anemic fetuses at first blood sampling. In these alloimmunized fetuses, the amniotic fluid/fetal blood ratio for bilirubin decreased from 0.09 at 28 weeks to 0.05 at 33 weeks. In normal fetuses, amniotic fluid/fetal blood ratios for bilirubin, and for albumin,...

background: suicide is a problem worldwide and occupation is an important risk factor. in the last decade, 55 200 deaths in the us were attributed to occupational risk factors. objective: to determine if toxic metal exposure was associated with suicide risk among paducah gaseous diffusion plant (pgdp) workers. methods: we assembled a cohort of 6820 nuclear industry workers employed from 1952 to...

Human and animal skeletal remains can provide information about the food chain of inhabitant’s nutrition of archaeologicalsites. The food chain which at it minerals and organic materials transferred from soil to the plants, from plants to theanimals, and from herbivores animals to the carnivores, is the benchmark system in ancient diet. Although Chemicalinteractions between soils, animal and hu...