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Article
Open AccessComparative analysis of Bricker versus Wallace ureteroenteric anastomosis and identification of predictors for postoperative ureteroenteric stricture
Ureteroenteric anastomosis after cystectomy is usually performed using the Bricker or Wallace technique. Deterioration of renal function is the most common long-term complication of urinary diversion (UD).
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Article
Urachal cancer—current concepts of a rare cancer
Urachal cancer is a rare but aggressive disease. In addition to the non-glandular tumors, non-cystic urachal adenocarcinomas are nowadays distinguished from the primary cystic variant. (Immunohistochemical) ma...
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Article
The particular characteristics of the active sites of MoS2, WS2 catalysts in thiophene hydrodesulfurization
It was reported in earlier studies that a linear correlation existed between the total sulfur exchange capacity and thiophene hydrodesulfurization activity of different, alumina- or silica-supported molybdenum...
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Article
The Conversion of Butadiene on Thiophene Hydrodesulfurization Catalysts
The production of thiophene via heterocyclization of butadiene with sulfur (hcycl.) has been studied in the interaction of butadiene with sulfided, alumina supported nickel (Ni6), molybdena–alumina (Mo6) and n...
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Article
Determination of Endogenous Formaldehyde in Plants (Fruits) Bound to L-Arginine and its Relation to the Folate Cycle, Photosynthesis and Apoptosis
A very powerful nucleophilic reagent, hydralazine(l-hydrazino-phtalazine) proved to be suitable for determination of the endogenous formaldehyde level in biological samples. It was found that in different plan...
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Article
The Hydrazine Derivative Aminoguanidine Inhibits the Reaction of Tetrahydrofolic Acid with Hydroxymethylarginine Biomolecule
Aminoguanidine (AG), a hydrazine derivative is known to inhibit the formation of Advanced Glycosylation Endproducts (AGE) and AG has been proposed as an agent in prophylaxis of diabetic complications. However,...
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Article
Analogies and Differences in the Excited Reactions of Formaldehyde and D-Glucose
The investigations proved that D-glucose (as reducing sugar) can easily be activated in a ternary system (L-lysine : D-glucose : H2O2) similarly to formaldehyde at 20 °C, in pH = 7.4 forming chemiluminescence (CL...
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Article
Determination of endogenous formaldehyde level in human blood and urine by dimedone-14C radiometric method
Radiometric method was developed for the analysis of endogenous formaldehyde in human blood and urine using dimedone-14C reagent. The method based on that dimedone /5,5-dimethyl-cyclohexane-1, 3-dione/ can very e...
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Article
Radiometric titration based on colloidal and slow precipitate formation
Fluoride ions and, in about 0.005M concentration, tungstate ions form gelatinous precipitates, poorly soluble in water, with calcium ions. The radiometric determinations of the above ions are based on these react...
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Article
Investigation and radiometric determination of saturated and unsaturated aliphatic monocarboxylic acids and aromatic dicarboxylic acids
Investigations have been carried out on the precipitation of calcium salts of saturated and unsaturated aliphatic monocarboxylic acids and of aromatic dicarboxylic acids. The optimum ethanol/water solvent rati...
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Article
Investigation and radiometric determination of saturated and unsaturated aliphatic dicarboxylic acids
Radiometric determination of saturated and unsaturated aliphatic dicarboxylic acids has been developed using a precipitation reaction. The influence of the conditions of precipitation, the composition of the c...
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Article
Radiometric determination of 8-hydroxyquinoline and its derivatives with calcium chloride reagent solution labelled by45Ca
Radiometric titrations are reported based on the formation of poorly soluble chelate complexes of 8-hydroxyquinoline and its derivatives with calcium ions. Calcium chloride reagent solution labelled with45Ca was ...
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Article
Titrating apparatus for the detection of soft β-emitting isotopes
The measuring devices reported in the literature allow only radiometric titrations indicated by hard β or γ-radiating isotopes. The authors developed an apparatus also suitable for the detection of soft β-emit...
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Article
The cortisol metabolism of human pulmonary tumour tissue
Bösartige Lungengeschwulstgewebe verschiedener Zelltypen wurden mit Hydrocortison 13H, 23H inkubiert. Die freien, markierten Steroide wurden extrahiert, chromatographisch getrennt und identifiziert.
