Clipping preventing

If pres.sure tubing is used, it is advisable to insert a short length of thin metal wire e.g.. copper wire, 22 gauge) to prevent the tubing being closed completely by the screw clip. 

Mineralocorticoids. Aldosterone [6251-69-0] (32), the most potent natural rnineralocorticoid, also possesses a A -3-one group, an oxygen substituent at Clip, and a C17P-2-hydroxyethan-l-one side chain. In addition, the C18 of aldosterone is oxidized to an aldehyde. Mineralocorticoids, particularly aldosterone, act to retain sodium and to prevent the retention of excess potassium. Antimineral ocorticoids have been used therapeutically as diuretics and as agents that regulate blood pressure (63—65). 

The functions of the bulb in the inlet tube C are to reduce the danger of spurting and also the sucking back of the liquid in A the latter can be prevented by the timely opening of the screw clip on E. 

A safety (cotter) pin (2) with a pull ring is inserted thru a pair of holes in the arming vane to prevent it from turning. A short wire with a safety clip attached is inserted thru a 2nd pair of holes in the arming vane. The arming pin (4), [which is attached to the vane (1)], extends into the center of the fuze thru the striker (6) and sleeve (7), both of which are locked together by two steel balls (12) located in two holes of the striker (6). Each ball is held outward in a recess of the sleeve... 

A twist-rod retention strap or clip to prevent the twist-rod from inappropriately untwisting. 

Dermal. Dermal administration is required for estimation of toxicity of chemicals that may be absorbed through the skin, as well as for estimation of skin irritation and photosensitization. Compounds are applied, either directly or in a suitable solvent, to the skin of experimental animals after hair has been removed by clipping. Often dry materials are mixed with water to make a thick paste that can be applied in a manner that ensures adequate contact with the skin. Frequently the animals must be restrained to prevent licking and hence oral uptake of the material. Solvent and restraint controls should be considered when stress is involved. Skin irritancy tests may be conducted on either animals or humans, using volunteer test panels for human tests. 

In the typical primary irritation test, the backs of albino rabbits are clipped free of hair and an area of about 5 cm2 on each rabbit is used in the test. This area is then treated with either 0.5 ml or 0.5 g of the compound to be tested and then covered with a gauze pad. The entire trunk of the rabbit is wrapped to prevent ingestion. After 4 to 24 hours the tape and gauze are removed, the treated areas are evaluated for erythematous lesions (redness of the skin produced by congestion of the capillaries) and edematous lesions (accumulation of excess fluid in SC tissue), each of which is expressed on a numerical scale. After an additional 24 to 48 hours, the treated areas are again evaluated. 

To prevent bleeding, double clipping of the anterior wall in the anorectal region is performed using hemostats (Fig. 14.1A). 

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