AN EVALUATION OF CAPTAN SMOKE GENERATORS FOR CONTROLLING ROTS IN STORED TOMATOES

1962 ◽  
Vol 42 (2) ◽  
pp. 294-301
Author(s):  
C. L. Lockhart ◽  
C. A. Eaves
Keyword(s):  
Active Ingredient ◽  
Response Curve ◽  
Storage Rots ◽  
Dosage Response Curve

Fungitoxic residues of captan were deposited on the surfaces of stored produce using an electrically operated smoke generator. Deposits were heavier on upper surfaces than on side or undersurfaces.The slope of the captan smoke deposit dosage-response curve was similar to that of captan, which indicated that the active ingredient was not destroyed during the smoking process.Deposits from captan smoke showed some promise for the control of tomato storage rots.

Dosage-response curve of wheat brown rust to triforine supplied via root treatment

1974 ◽  
Vol 5 (1) ◽  
pp. 17-24 ◽  
Author(s):  
Chukwuwetalu Ebenebe ◽  
Volkmar Von Bruchhausena ◽  
Friedrich Grossmann
Keyword(s):  
Response Curve ◽  
Brown Rust ◽  
Dosage Response Curve ◽  
Root Treatment

scholarly journals THE RELATIVE SIGNIFICANCE OF GRADED IMMUNIZING AND CHALLENGE DOSES IN MEASURING THE POTENCY OF VACCINES

1949 ◽  
Vol 90 (3) ◽  
pp. 233-253 ◽  
Author(s):  
H. C. Batson
Keyword(s):  
Response Curve ◽  
Standard Errors ◽  
Typhoid Vaccine ◽  
Relative Significance ◽  
Immunological Assay ◽  
Cent Level ◽  
The Difference ◽  
Graded Challenge ◽  
Level Of Significance ◽  
Dosage Response Curve

A study of the effect of graded immunizing doses of typhoid vaccine and graded challenge doses of S. typhosa in 5 per cent mucin on the degree of gradation of response (survival or death) elicited in successive groups of mice is reported. In the range of doses employed the effect of graded immunizing doses was markedly greater than was the effect of graded challenge doses. Statistically the difference exceeded the 0.1 per cent level of significance. It was concluded that the use of graded immunizing doses was preferable to the use of graded challenge doses as a basis for the immunological assay of typhoid vaccine, since with the former there was obtained (a) a greater significance of differences in response of groups given graded doses even with smaller fold increments in successive doses, (b) a greater slope of the dosage-response curve which permitted estimation of ED50 values with smaller standard errors, and (c) an effect on response apparently less dependent on the sex of mice used.

THE DOSAGE-RESPONSE CURVE FOR THE COMPARISON OF MERCURIAL DIURETICS

1950 ◽  
Vol 220 (2) ◽  
pp. 156-159 ◽  
Author(s):  
Donald A. Clarke ◽  
Walter Modell ◽  
Theodore Greiner ◽  
Nathaniel T. Kwit ◽  
Joseph L. Gluck ◽  
...  
Keyword(s):  
Response Curve ◽  
Dosage Response Curve

scholarly journals STUDIES ON SPREADING FACTORS

1947 ◽  
Vol 85 (1) ◽  
pp. 77-97 ◽  
Author(s):  
Oscar Hechter
Keyword(s):  
Response Curve ◽  
Enzyme Concentration ◽  
Constant Volume ◽  
Interstitial Pressure ◽  
Snake Venoms ◽  
Slow Diffusion ◽  
Intradermal Administration ◽  
Dosage Response Curve

The spreading response induced by intradermal administration of hyaluronidase is influenced not only by enzyme concentration, but also by the volume and pressure of the injection. These pressure-volume factors influence the rate of spreading and determine the final area of spreading. When a constant volume is injected, the rate of spreading to the area determined by the volume of injection is a function of the enzyme concentration. These and other findings have led to the conclusion that hyaluronidase is an effective spreading agent only when the slow diffusion of enzyme in skin is accelerated by a localized increase of interstitial pressure and volume. These considerations of hyaluronidase action in skin have been utilized to explain the shape of the dosage-response curve of hyaluronidase spreading activity, and the differences in the spreading reactions between crude snake venoms and purified hyaluronidase. The significance of the findings as related to the rôle of hyaluronidase in bacterial invasiveness, and in the assay of S. F. are briefly discussed.

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