منابع مشابه
Nasogastric Tube Placement in Newborns Before Discharge.
The aim of this study was to assess the knowledge of medical staff (physicians) at different levels about insertion or placement of nasogastric tube (NGT) in a normal newborn before discharge. It was a survey-based, observational study conducted at King Khalid University Hospital. Atotal of 103 doctors were sent text message; among those 81 (78.6%) responded. Among the respondents, 27, 16, 11 a...
متن کاملThe microsporidian spore invasion tube. II. Role of calcium in the activation of invasion tube discharge
A swelling response by the polaroplast organelle initiated microsporidian invasion tube extrusions by Glugea hertwigi spores. The tumescence was induced by the displacement of internal calcium. Sodium citrate, phosphate, and the calcium ionophore A23187 were effective in initiating polaroplast swelling and spore discharge; however, the addition of external CaCl2 switched the expanded polaroplas...
متن کاملCreep Life Assessment of Primary Reformer HP40-NB Modified Steel Tube of an Ammonia Plant
Assessment of creep damage and residual creep life of a cast HP 40 Nb Mod. Reformer tube was performed, wherein the experimental Larson–Miller diagram and area fraction of creep voids were adopted. The state of damage of the tube in service was metallographically analyzed by using light and electron microscopy. Samples from the serviced reformer furnace tube were cut and prepared for void exami...
متن کاملSimulation of Gas Discharge in Tube and Paschen’s Law
According to the related theory about gas discharge, the numerical model of a gas discharge tube is established. With the help of particle simulation method, the curve of relationship between gas ignition voltage, gas pressure and electrode distance product is studied through computer simulation on physical process of producing plasma by DC neon discharge, and a complete consistence between the...
متن کاملJohn Hughes Davies. the Effect of the Silent Electrical Discharge on the Ammonia System*
As early as 1785 Claude Louis Berthollet (17481822) studied the decomposition of ammonia by electric sparking. He found that 0.725 by volume of hydrogen and 0.275 by volume of nitrogen were produced. Several other workers confirmed this effect of sparking but noted that some NH3 always remains. The partial formation of NH3 when mixtures of H2 and N2 were subjected to various forms of electrical...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1930
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.16.12.804