New response to sexual characteristics

2021 ◽  
Vol 20 (9) ◽  
pp. 987-987
Author(s):  
V. G.
Keyword(s):  
Potassium Hydroxide ◽  
Sodium Hydroxide Solution ◽  
Potassium Hydroxide Solution ◽  
Test Tube ◽  
Animal Tissues ◽  
Hydroxide Solution ◽  
Sexual Characteristics ◽  
Small Test ◽  
Small Test Tube ◽  
Color Indicator

Prof. Bernatsky (Doctor. Gaz., 1924, No. 18) describes a new specific reaction to the sexual characteristics of plant and animal tissues. 1/4 of the timing is taken. test tissue, crushed in a mortar, placed in a small test tube ("port-fleur"), 1 cube of site is poured, a mixture of equal parts of 0.582% sodium hydroxide solution and 0.816% potassium hydroxide solution, the mixture is thoroughly mixed with a glass rod, and 1 a drop of a color indicator consisting of 2 hours of alcohol (95-96 ) 1% dalpy solution, 1 hour. one

Kinetics and mechanism of cyclization of N-(2-methoxycarbonylphenyl)-N’-methylsulphonamide to 3-methyl-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide

1991 ◽  
Vol 56 (8) ◽  
pp. 1701-1710 ◽  
Author(s):  
Jaromír Kaválek ◽  
Vladimír Macháček ◽  
Miloš Sedlák ◽  
Vojeslav Štěrba
Keyword(s):  
Potassium Hydroxide ◽  
Acid Catalysis ◽  
Potassium Hydroxide Solution ◽  
Hydroxide Solution ◽  
General Base ◽  
Rate Limiting Step ◽  
Limiting Step ◽  
Cyclization Kinetics ◽  
Rate Limiting ◽  
Kinetics Of

The cyclization kinetics of N-(2-methylcarbonylphenyl)-N’-methylsulfonamide (IIb) into 3-methyl-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide (Ib) has been studied in ethanolamine, morpholine, and butylamine buffers and in potassium hydroxide solution. The cyclization is subject to general base and general acid catalysis. The value of the Bronsted coefficient β is about 0.1, which indicates that splitting off of the proton from negatively charged tetrahedral intermediate represents the rate-limiting and thermodynamically favourable step. In the solutions of potassium hydroxide the cyclization of dianion of the starting ester IIb probably becomes the rate-limiting step.

Occurrence of Yersinia enterocolitica in Poultry Products

1982 ◽  
Vol 45 (4) ◽  
pp. 322-325 ◽  
Author(s):  
E. DE BOER ◽  
B. J. HARTOG ◽  
J. OOSTEROM
Keyword(s):  
Yersinia Enterocolitica ◽  
Bile Salts ◽  
Potassium Hydroxide ◽  
Saline Solution ◽  
Potassium Hydroxide Solution ◽  
Macconkey Agar ◽  
Hydroxide Solution ◽  
Poultry Products ◽  
Phosphate Buffered Saline

In a study on isolation of Yersinia enterocolitica from poultry products, usefulness of the following enrichment media was evaluated: phosphate-buffered saline solution with and without addition of 1% sorbitol plus 0.15% bile salts, modified Rappaport medium and selenite broth. Plating was performed on MacConkey agar directly from the incubated broths and after treatment of the enrichment broths with a potassium hydroxide solution. Seventy-three of 108 (68%) samples of poultry products contained Y. enterocolitica. Y. enterocolitica was isolated most frequently after enrichment in phosphate-buffered saline solution with sorbitol and bile salts. Nearly all Y. enterocolitica strains were found after KOH-treatment. Serotyping showed that the isolated strains mainly belonged to the category of the non-pathogenic, so called “environmental” strains.

The Boltz (Acetic-Anhydride) Test in Cerebro-Spinal Fluid

1930 ◽  
Vol 76 (313) ◽  
pp. 271-276 ◽  
Author(s):  
C. Thomas
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Acetic Anhydride ◽  
Test Tube ◽  
Spinal Fluid ◽  
White Background ◽  
The Central Nervous System ◽  
Small Test ◽  
Small Test Tube ◽  
Pink Coloration

The acetic anhydride test was introduced in 1923 by Boltz, who regarded a positive result as diagnostic of syphilis of the central nervous system. The technique of the test is simplicity itself, and is as follows: Place 1 c.c. of spinal fluid in a small test-tube. Add 0.3 c.c. of acetic anhydride drop by drop; shake. Add 0.8 c.c. concentrated sulphuric acid drop by drop; shake. After five minutes examine the colour of the fluid against a white background. A lilac or blue-pink coloration is positive.

Fabrication of porous ZnO via electrochemical etching using 10wt% potassium hydroxide solution

2013 ◽  
Vol 16 (1) ◽  
pp. 70-76 ◽  
Author(s):  
C.G. Ching ◽  
P.K. Ooi ◽  
S.S. Ng ◽  
M.A. Ahmad ◽  
Z. Hassan ◽  
...  
Keyword(s):  
Potassium Hydroxide ◽  
Electrochemical Etching ◽  
Potassium Hydroxide Solution ◽  
Hydroxide Solution

Surface passivation of cadmium zinc telluride radiation detectors by potassium hydroxide solution

2000 ◽  
Vol 29 (6) ◽  
pp. 708-712 ◽  
Author(s):  
Kaushik Chattopadhyay ◽  
Miguel Hayes ◽  
Jean-Olivier Ndap ◽  
Arnold Burger ◽  
W. J. Lu ◽  
...  
Keyword(s):  
Potassium Hydroxide ◽  
Surface Passivation ◽  
Cadmium Zinc Telluride ◽  
Potassium Hydroxide Solution ◽  
Zinc Telluride ◽  
Radiation Detectors ◽  
Hydroxide Solution ◽  
Cadmium Zinc
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