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Alteration capability

Chick embryos exposed to rhodium on the eighth day of incubation were stunted mild reduction of limb size and feather growth inhibition were also observed. A number of rhodium compounds have tested positive in bacterial assays for genetic altering capability. The 2003 ACGIH threshold limit valuetime-weighted averages (TLV-TWAs) are 1.0 mg/m for the metal, l.Omg/m as Rh, insoluble compounds, and 0.01 mg/m as Rh, soluble compounds. [Pg.619]

We will reserve the word additive for substances, or mixtures of substances, capable of noticeably improving at least one property of the product in question, without altering the other intrinsic properties. [Pg.345]

Since an enzyme is a biological catalyst and therefore merely accelerates a reaction, it cannot alter the position of equilibrium in a reversible reaction. The hydrolysis of p-methylglucoside is reversible and emulsin should therefore be capable also of synthesising this compound frc n glucose and methanol. This synthesis can actually be carried out by the action of the enzyme on glucose dissolved in an excess of methanol, the excess of the alcohol throwing the equilibrium over to the left. Owing to experimental difficulties, this reaction is not here described. [Pg.516]

The so-called hydro-vac pump, shown in Fig. 11, 22, 2 (the upper half of the mercury reservoir and the column above it are insulated by a layer of asbestos), is an inexpensive, all-glass, mercury diffusion pump, which can be used in series either with an oil pmnp or with a water Alter pmnp (compare Fig. 11,21, 1) capable of producing a vacuum of at least 2 mm. It is accordingly of particular value in the organic laboratory for vacuum distillations, fractionations, sublimations and pyrolyses as well as for molecular distillations (see Section 11,26). The hydro-vac... [Pg.111]

To alter the circuit parameters L and C, reduce the line impedance and hence the voltage drop, and itiso to enhance utilizatioti. i.e. the power ti ansfei capability of the line. [Pg.779]

One example is sampling for S02- Liquid sorbents for SO2 depend on the solubility of SO2 in the liquid collection medium. Certain liquids at the correct pH are capable of removing ambient concentrations of SO2 with 100% efficiency until the characteristics of the solution are altered so that no more SO2 may be dissolved in the volume of liquid provided. Under these circumstances, sampling is 100% efficient for a limited total mass of SO2 transferred to the solution, and the technique is acceptable as long as sampling does not continue beyond the time that the sampling solution is saturated (1). A second example is the use of solid sorbents such as Tenax... [Pg.180]

The development of devices that provide a direct measure of stress or particle velocity led to observations of new rate-dependent mechanical responses and showed the power of such time-resolved measurements. The quartz gauge was the first of these devices with nanosecond time resolution, but its upper operating limit of 4 GPa limited its application. The development of the VISAR has had the most substantial impact on capabilities. VISAR systems, with time-resolution approaching 1 ns and the ability to work to pressures of 100 GPa, provide capabilities that have substantially altered the scientific descriptions of shock-compressed matter. [Pg.62]

Acyclic diene molecules are capable of undergoing intramolecular and intermolec-ular reactions in the presence of certain transition metal catalysts molybdenum alkylidene and ruthenium carbene complexes, for example [50, 51]. The intramolecular reaction, called ring-closing olefin metathesis (RCM), affords cyclic compounds, while the intermolecular reaction, called acyclic diene metathesis (ADMET) polymerization, provides oligomers and polymers. Alteration of the dilution of the reaction mixture can to some extent control the intrinsic competition between RCM and ADMET. [Pg.328]

This example illustrates that when the resources and personalities of both sides remain fixed in a conflict, how well side X does over side Y does not necessarily scale monotonically with X s sensor capability. As one side is forced to assimilate more and more information (with increasing sensor range), there will inevitably come a point where the available resources will be spread too thin and the overall fighting ability will therefore be curtailed. Agent-based models such as EINSTein are well suited for providing insights into more operationally significant questions such as, How must X s resources and/or tactics (i.e., personality) be altered in order to ensure at least the same level of mission performance ... [Pg.599]

As noted in the previous discussion, different tissues have varying efficiencies of stimulus-response coupling. However, within a given tissue there may be the capability of choosing or altering the responsiveness of the system to agonists. This can be a useful technique in the study of... [Pg.30]

There is a capability to alter the receptor density (or cells available with a range of receptor densities). [Pg.85]

In the Nernst equation the term RT/nF involves known constants, and introducing the factor for converting natural logarithms to logarithms to base 10, the term has a value at a temperature of 25 °C of 0.0591 V when n is equal to 1. Hence, for an ion M+, a ten-fold change in ionic activity will alter the electrode potential by about 60 millivolts, whilst for an ion M2 +, a similar change in activity will alter the electrode potential by approximately 30 millivolts, and it follows that to achieve an accuracy of 1 per cent in the value determined for the ionic concentration by direct potentiometry, the electrode potential must be capable of measurement to within 0.26 mV for the ion M+, and to within 0.13 mV for the ion M2 +. ... [Pg.549]


See other pages where Alteration capability is mentioned: [Pg.362]    [Pg.295]    [Pg.362]    [Pg.295]    [Pg.562]    [Pg.1633]    [Pg.14]    [Pg.334]    [Pg.455]    [Pg.32]    [Pg.449]    [Pg.445]    [Pg.211]    [Pg.410]    [Pg.488]    [Pg.232]    [Pg.298]    [Pg.346]    [Pg.1319]    [Pg.1749]    [Pg.49]    [Pg.92]    [Pg.290]    [Pg.848]    [Pg.199]    [Pg.38]    [Pg.220]    [Pg.4]    [Pg.16]    [Pg.298]    [Pg.813]    [Pg.373]    [Pg.480]    [Pg.322]    [Pg.853]    [Pg.241]    [Pg.215]    [Pg.440]    [Pg.67]   
See also in sourсe #XX -- [ Pg.151 ]




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