Agent, defined

For newer agents, defining the plasma level or dose-response relationship should be a priority to avoid using excessive doses for prolonged periods of time. This information may also be relevant for designing clinical trials using appropriate doses of neuroleptics for comparison trials against novel antipsychotics (i.e., parallel dose-response studies). 

Figure 1. Generic structures of nerve agents defined in Schedule 1 of the CWC...

Murthy TH, Weissman NJ. The advanced echocardiographic contrast agent Definity (perflutren lipid microspheres). Today s Ther Trends 2002 20 233 1. 

Surfactant - Derived from surface active agent. Defined as substances which aggregate or absorb at the surfaces and interfaces of materials and change their properties. These agents are used to make compatible two or more immiscible phases such as water and oil. In general, one end of a surfactant is water soluble and the other end is soluble in an organic liquid. 

Release studies are extremely important due to the possibility of modulating the releases of the active ingredient from microparticles produced by spray chilling. The type and geometry of the particles and, especially the encapsulating agent define the mechanism of release. 

Chemical weapons are those weapons capable of disseminating chemical warfare agents, defined by a United Nations report as chemical substances, whether gaseous, liquid, or solid, which might be employed because of their direct toxic effects on man, animals and plants . This definition, unlike that of the United States Department of Defense,... 

Observational studies In a questionnaire study about unwanted symptoms over 7 days after injection of ferucarbotran, an SPIO contrast agent, in 315 patients who underwent MRI scans of the liver, here were 169 adverse events in 78 patients, of which 70 adverse events in 45 patients were judged to be adverse reactions to the contrast agent, defined as possibly or definitely related to ferucarbotran [32 ]. All the reactions were of mild intensity. However, the incidence of all adverse events was less than that of baseline symptoms. 

The initiating or degrading agent defines the type of degradation or decomposition as shown in Table 1 [1-11]. 

A RAFT polymerization system consists of an initiator, monomer, solvent and a chain transfer agent, defined as RAFT agent, which mediates the polymerization via a reversible chain transfer process. RAFT agents are thiocarbonylthio compounds, including dithioesters, dithiocarbamates, trithiocarbonates and xanthates, and characterized by the presence of two different functionalities a Z group, which affects the stability of the C=S bond and controls the effectiveness radicals addition to the growing chain, and a R group, able to initiate new polymeric chains (Fig. 1.10). 

The agent class schema includes the set of ALC roles and a function called AgentName n4e that qiecifies the role of a refnenced agent defined as ... 

Neutralization value An important characteristic of chemical leavening agents defined as the parts of sodium bicarbonate that neutralize 100 parts of the chan-ical-leavening agent under controlled baking conditions. For example, monocalcium phosphate has a neutralization value of 80, whereas dicalcium phosphate has a neutralization value of 33. The sodium aluminum salts (phosphate and sulfate) have values of 100. 

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