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KILL, description

An inhibitor is a substance that retards a reaction. An inhibitor is also present in "catalytic" or sub-stoichiometric amounts. In a radical chain reaction an inhibitor may be a radical scavenger that interrupts the chain. In a metal catalysed reaction an inhibitor could be a substance that adsorbs onto the metal making it less active or blocking the site for substrate co-ordination. We also talk about a poison, a substance that stops the catalytic reaction. A poison may kill the catalyst. The catalyst dies, we say, after which it has to be regenerated wherever possible. We will often see the word co-catalyst, a substance that forms part of the catalyst itself or plays another role somewhere in the catalytic cycle. We inherited a florid language from our predecessors to whom catalysis was black magic. Naturally, these words are rather imprecise for a description of catalysis at the molecular level. [Pg.2]

Next to the description of God breathing into Adam s nostrils Forman added definitions of the divine and animal souls that he attributed to Paracelsus. The divine soul was eternal, only man s imagination could kill it the animal or elemental soul died with the body. At the bottom of the page Forman added a description of Adam as born with eternal life, power over all creatures, and altitude ... [Pg.197]

A fairly comprehensive description of this process is given in Ref I, pp Ger 198—99 Dr Duffek worked after WWII at Picatinny Arsenal until he was killed in his car by a train at a grade crossing in Sparta, New Jersey (Ref 2)... [Pg.461]

The Hindenburg was the largest flying machine ever built — 804 feet long. It would have dwarfed a Jumbo 747 and was roughly the size of the Titanic. The crash Morrison described killed thirty-five of the ninety-seven people onboard, along with one crew member on the ground. Morrison s description. [Pg.208]

When tested in bacteria, toluene did not induce prophage, differential killing or gene mutation. In single studies with Saccharomyces cerevisiae, toluene did not induce either gene conversion or gene mutation (WHO, 1985, secondary description). [Pg.849]

A group of 28 male Fischer rats, seven weeks of age, was treated by gavage with a single dose of 35 mg/kg bw 1,2-dimethylhydrazine hydrochloride dissolved in 0.1 M sodium acetate buffer. The animals were killed 1.5 years after treatment and 22/28 (78.6%) treated rats had colon epithelial tumours [detailed histological description not given]. One of the rats with colon tumours also developed a small intestinal tumour and another had a tumour of the Zymbal gland (Schiller et al., 1980). [Pg.949]

But real systems are usually not simple feedback loops. In a virus such as bacteriophage the decision to kill the infected bacterial cell or to establish a symbiotic association with it depends on complex interactions involving a number of interconnected feedback loops. Such systems (and even simpler ones) would need a formal description in view of their complexity but as a matter of fact this complexity is such that the classical methods are much too heavy. This was a reason for trying a logical description, that is, a description using variables and functions which can take only a limited number of values—typically two (1 and 0). [Pg.252]

Some of the common anthelmintics used to kill the basic types of worms in humans are listed in Table 35-5. These agents are often very effective a single oral dose is usually sufficient to selectively destroy the parasite. Brief descriptions of the basic pharmacologic effects and possible adverse effects of the primary anthelmintic agents are presented below. Several authors have also extensively reviewed the pharmacologic treatment of helminthic infections.36,41,52,58,66... [Pg.557]

Pressac himself becomes very critical in quite a few of his passages relating to the reliability and credibility of eyewitness testimonies 452 yet it is upon these eyewitness testimonies that all the descriptions of the gas chamber killings are based. He lists the untruths, impossibilities, and exaggerations of the witnesses and explains how they presumably materialized. Finally, in an interview, he said 453... [Pg.205]

The following description is provided to enable any person skilled in the art to make and use the invention and sets forth the best modes contemplated by the inventor of carrying out his invention. Various modifications, however, will remain readily apparent to those skilled in the art, since the general principles of the present invention have been defined herein specifically to provide an improved colloidal silver product with significant abilities to kill human pathogens both in vivo and in vitro. [Pg.3]

Microscopic examination of all preserved organs and tissues with complete description of all found in the exposed animal 1) all animals that die or were killed during the study 2) all animals exposed to highest dose of the test chemical and the controls. [Pg.503]

Rats are treated with 120 mg/kg ANIT and Tween-80 in the same amoimt as used for diluting ANIT. Mter approximately 40 h the rats were killed and microsomes isolated as descript above. Here you can see the results of the heme oxygenase activity measurement by using 0.2 ml hemin solution and different amoimts of microsomal solution. The highest activity is measured with 0.1 ml added microsomes and decreases 5 to 9-fold at 0.4 ml added microsomes. So 0.2 ml hemin solution is too little for an increased (more than 0.1 ml) microsomal volume. So HO is rate-limited. [Pg.79]

In this chapter, the mechanisms of UV disinfechon will be presented. A mathematical description of microorganism killing by UV radiation is given. Design approaches of disinfection systems are demonstrated. Case studies will also be presented at the end of this chapter. [Pg.320]


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See also in sourсe #XX -- [ Pg.75 ]




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