scholarly journals Evaluation of Friction Velocity Using Drag Plate Method

1988 ◽  
Vol 44 (1) ◽  
pp. 45-48
Author(s):  
Yousay HAYASHI ◽  
Kouichi NARITA ◽  
Hitoshi TORITANI
Keyword(s):  
Friction Velocity ◽  
Plate Method ◽  
Drag Plate

Evaluation of the Fibrin Plate Method for Estimating Plasminogen Activators

1972 ◽  
Vol 28 (01) ◽  
pp. 075-088 ◽  
Author(s):  
N. A Marsh ◽  
C. L Arocha-Pinango
Keyword(s):  
Tranexamic Acid ◽  
Plasminogen Activators ◽  
Heated Plate ◽  
Plasminogen Activation ◽  
Response Curves ◽  
Plate Method ◽  
Single Plate ◽  
Effect Of Additives ◽  
Threefold Increase ◽  
Fibrin Plate

SummaryA study was carried out in order to evaluate the Astrup and Mullertz fibrin plate method for estimating plasminogen activators.Choice of a suitable fibrinogen substrate was found to be the most important factor in setting up a workable assay. Many preparations contained a large proportion of non-clottable protein and plates made from these fibrinogens were usually unreliable. In addition, plasminogen content varied appreciably between preparations so that sensitivity of the method required careful calibration with each new batch of fibrinogen.The effect of additives in the fibrin plate was considered and it was found that calcium chloride alone was sufficient to ensure a stabilised plate which could be stored at 4° C for some time. The addition of tranexamic acid (AMCHA) was found to be a slightly more convenient way of estimating direct proteolytic activity, compared with the traditional heated plate. However neither method distinguished completely between proteolysis and plasminogen activation.In order to improve the precision of the method, the use of an analysis of variance technique has been studied. This technique provides information on the dose-response curves of test and unknown substances, and in addition produces an approximately threefold increase in precision over single plate tests.

Fibrinolytic Activity of Cerebro-Spinal Fluid and the Development of Artificial Cerebral Haematomas in Dogs

1969 ◽  
Vol 21 (02) ◽  
pp. 294-303 ◽  
Author(s):  
H Mihara ◽  
T Fujii ◽  
S Okamoto
Keyword(s):  
Cerebrospinal Fluid ◽  
Carboxylic Acid ◽  
Fibrinolytic Activity ◽  
Clinical Implications ◽  
Trans Form ◽  
Plate Method ◽  
Blood Samples ◽  
Fibrin Plate ◽  
The Brain

SummaryBlood was injected into the brains of dogs to produce artificial haematomas, and paraffin injected to produce intracerebral paraffin masses. Cerebrospinal fluid (CSF) and peripheral blood samples were withdrawn at regular intervals and their fibrinolytic activities estimated by the fibrin plate method. Trans-form aminomethylcyclohexane-carboxylic acid (t-AMCHA) was administered to some individuals. Genera] relationships were found between changes in CSF fibrinolytic activity, area of tissue damage and survival time. t-AMCHA was clearly beneficial to those animals given a programme of administration. Tissue activator was extracted from the brain tissue after death or sacrifice for haematoma examination. The possible role of tissue activator in relation to haematoma development, and clinical implications of the results, are discussed.

Antifungal activity of plant extracts against dandruff causing organism Malassezia furfur

2016 ◽  
Vol 5 (11) ◽  
pp. 5047 ◽  
Author(s):  
Mamatha Pingili* ◽  
Sridhar Vanga ◽  
Rama Krishna Raparla
Keyword(s):  
Antifungal Activity ◽  
Plant Extracts ◽  
Malassezia Furfur ◽  
Plate Method

In the present study, an attempt was made to know the activity of different plant extracts against the dandruff causing organism Malassezia furfur. Various parts of twelve different plants were collected and their crude as well as powered extracts were used for the activity studies. The evaluation was done using cup plate method. Sensitivity of the organism to marketed antidandruff shampoos was also studied. Of all the extracts, antifungal activity was shown by lemon, amla, shikakai, henna (decreasing order of activity). These results were compared with the antifungal activity of three branded shampoos. On comparison, it is inferred that plant extracts showed promising activity against Malassezia furfur when compared with the marketed antidandruff shampoos. 

A Rapid and Direct Plate Method for EnumeratingEscherichia colibiotype I in Food

1975 ◽  
Vol 39 (2) ◽  
pp. 111-117 ◽  
Author(s):  
JUDITH M. ANDERSON ◽  
A. C. BAIRD-PARKER
Keyword(s):  
Plate Method
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