ABSTRACT
A nonmonotonous dependence of luminescence intensity of aqueous solutions of 0.1 M glycine and its N-methyl derivatives on the number of methyl groups in the solute molecule was found. A correlation between luminescence intensities and optical density at the excitation wavelength of 300 nm was revealed. Possible causes of the phenomenon observed were analyzed. Among these are: luminescence of admixtures, intrinsic luminescence of dissolved molecules, and luminescence related to the formation of nanoscale complexes in solution. On the basis of the data, it is impossible to make a final choice between the three above-mentioned mechanisms of luminescence of aqueous solutions of glycine and its N-methyl derivatives.
Subject(s)
Glycine/chemistry , Glycine/analogs & derivatives , LuminescenceSubject(s)
Gallstones/surgery , Aged , Cholangiography , Cholecystectomy , Female , Gallstones/etiology , Humans , Intraoperative Period , Middle Aged , Time FactorsABSTRACT
The authors have analyzed results of the treatment of 234 patients with obturation jaundice. In half of thepatients jaundice was caused by stones in the common bile duct. Frequently jaundice was caused by cancer of the pancreas head, stenosing papillitis, chronic pancreatitis. Transduodenal transcapillary choledochopancreatography should be included into the complex preoperative examination for earlier diagnosis of the disease. This method gives timely diagnosis of mechanical jaundice and hence results in earlier surgical intervention.
Subject(s)
Cholestasis/diagnosis , Cholestasis/etiology , Cholestasis/surgery , Diagnosis, Differential , Diagnostic Errors , Female , Humans , Male , Middle Aged , Preoperative CareABSTRACT
Basal metabolism indices and data on external respiration function in 352 thyrotoxicosis cases are set forth. The significance of the definition of basal metabolism helping to determine the severity of thyrotoxicosis; they serve as objective criteria in the assessment of the effectiveness of the preoperative management.
