Influence of activities

Hanna LE, Bose JC, Nayak K, Subramanyam S, Swaminathan S. Short communication influence of active tuberculosis on chemokine and chemokine receptor expression in HIV-infected persons. AIDS Res Hum Retroviruses 2005 21(12) 997-1002. 

Figure 10.31 Influence of active chlorine concentration on AOX content and whiteness [247]...

Deffieux A, Cramail H, Radharkrishnen K, Pedeutour JN (2001) Reactivity of metallocene catalysts for olefin polymerization influence of activator nature and structure. Macromol Rapid Commun 22 1095-1123... 

Figure 6. Influence of activator type on vulcanization network character of the elastomeric compositions ...

Additional information <3> (<3> kinetics of peptide phosphorylation, influence of activated rhodopsin and /I2-AR on the value for different peptide substrates [14]) [14]... 

According to Stewart [49] hydrazoic acid decomposes under the influence of active nitrogen to form the NH radical. 

In a detonation wave the change of state—after equally rapid compression—depends on the process of chemical reaction and is extended in accordance with the kinetics of the reaction. The only restriction is that the wave (reaction zone) not be extended to a length which is many times larger than the tube diameter. Comparison with a shock wave shows only that the role of heat conduction and diffusion of active centers in a detonation wave is negligible. But they are not needed the mixture, which has been heated to a high temperature, enters the reaction and reacts under the influence of active centers created by the thermal motion and multiplying in the course of the reaction. Each layer reacts without exchanging heat or centers with other layers. 

Figure 22. Influence of activity profiles on the temperature profile of a strongly exothermic reaction. A) Catalyst with 66% activity in the front section and 100% activity in the back [37] B) Linear (broken line) and optimal catalyst activity distribution (full line) for limiting the maximum temperature to 370 °C (simulation result) C) Experimental verification of B [38].

Fig. 2. Summary of regulatory GTPase cycle in photoactivation of cGMP-specific phosphodiesterase (PDE) in retinal rod cells. T, transducin (Gt) Rho, rhodopsin Rho, photoactivated Rho. PDE is represented as a heterotrimeric peripheral membrane protein, as is T. This regulatory cycle differs from that in Fig. 1 mainly in that the activation of PDE entails the dissociation of an inhibitory y subunit (PDEy) under the influence of activated Ta-GTP complex leading to formation of intermediary soluble Ta-GTP/PDEy complex. This complex persists until GTP is hydrolyzed to GDP, at which moment the inhibited PDEa/3y heterotrimer reforms. Dark adapted - non-activated - Rho is then required for reassociation of Ta-GDP to T/3y and release of GDP.

Influence of Activator. With a jfl-TiCh precipitate of optimum activity, prepared by reaction at 80° C. of TiCl4 with AlEt3 at an Al/Ti ratio of 0.35-0.40, a further study was made of the effect of amount and type of activator on the polymerization of propylene. As stated above, it should be realized that this precipitate contains at least % mole A1C13 per mole TiCl3 and moreover a few alkyl groups. 

Chiodo LA, Caggiula AR, Antelman SM, Lineberry CG (1979) Reciprocal influences of activating and immobilizing stimuli on the activity of nigrostriatal dopamine neurons. Brain Res 776 385-390. 

Figure 9 influence of activated carbon on the separator concentration at 110 bar, 70 °C... 

The carbon support used was a Norit activated carbon (RX3 extra) having a surface area of 1190 m2.g 1 and a pore volume of 1.0 cm3.g . The Co/C catalyst (4.1 wt% Co) was prepared by pore volume impregnation with an aqueous solution of cobalt nitrate (Merck p.a.) followed by drying in air at 383 K (16 h). The promoted catalyst (1.5 wt% Co, 7.7 wt% Mo) was prepared in a special way to ensure a maximum amount of the Co-Mo-S phase (11). Mossbauer spectroscopy of this promoted catalyst clearly showed that only the Co-Mo-S phase was present after sulfiding (11) and furthermore that this Co-Mo-S is probably a Co-Mo-S type II phase, meaning a minor influence of active phase-support interaction (11,12). The catalytic activity of the sulfided catalysts was determined by a thiophene HDS measurement at 673 K and atmospheric pressure, as described elsewhere (10). The thiophene HDS reaction rate constant kHDg per mol Co present (approximated as a first order reaction) was found to be 17 10 s 1 for Co/C and 61 10 3s 1 for Co-Mo/C. 

Finally, the influence of active surface area on fluorination is extremely well demonstrated by the various forms of A1203. The commercially available, activated A1203 reacts very vigorously with elemental fluorine and is a convenient active agent in absorption towers for fluorine and reactive fluorides. In contrast, tubes and crucibles made from sintered A1203 withstand fluorine up to several hundred degrees Celsius. Finally synthetic sapphire, which is actually crystalline A1203, is possibly the most inert material for use in fluorine chemistry. 

Activation of the Catalyst Precursors 515 Table 12.1 Influence of activation conditions on unpromoted V—P—O catalysts [135]. 

In the present study, an attempt was undertaken to study the influence of activated (spillover) hydrogen on the activity and selectivity of n-hexane cracldng on Pt/H-erionite. 

The influence of activity changes on the dynamic behavior of nonisothermal pseudohomogeneoiis CSTR and axial dispersion tubular reactor (ADTR) with first order catalytic reaction and reversible deactivation due to adsorption and desorption of a poison or inert compound is considered. The mathematical models of these systems are described by systems of differential equations with a small time parameter. Thereforej the singular perturbation methods is used to study several features of their behavior. Its limitations are discussed and other, more general methods are developed. 

The scallop Adamussium colbecki was sampled from areas adjacent to Terra Nova Bay and Swoya research stations as well as from the Explorers Cove site which is hydrographically isolated from the influence of activities at the McMurdo Base (73). The study aimed at developing a circumpolar baseline for this species as regards trace elements in relation to the different habitat conditions. Determinations of Cd, Cu, Fe, Mn, Ni, Pb and Zn were performed on all tissues combined. The concentrations found were generally lower than those for temperate and tropical scallop species. 

The influence of activated carbon preloaded with organic matter (see Chapter 25 for the adsorption of organics in aqueous solution) on the adsorption of metal ions is dependent on the operating conditions and on the properties of both the activated carbon and the organic matter [18]. 

TABLE 53 Properties of Cr/AlP04 Catalyst (0.9 P/Al) and the Polymers it Made, Showing the Influence of Activation Temperature in Three Series of Polymerization Tests... 

FIGURE 258 The influence of activation hold time can be seen in this experiment in which Cr/silica catalysts (1 wt% Cr) were activated at various temperatures for 15 min and for 20 h. The catalyst activity is plotted, and two important polymer properties— the MW and the relaxation time distribution (CY-a), which represents elasticity. 

It is also possible to study the influence of active carriers on the transport over the intestinal mucosa by this technique. This can be done by comparing the Peff with and without an... 

Couch DB et al., The influence of activation systems on the metabolism of 2,4-dinitrotoluene and its mutagenicity to CHO cells, in Banbury Report. 2. Mammalian Cell Mutagenesis The Maturation of Test Systems, Hsie AW, O Neil JP, and McElheny VK, Eds., Cold Spring Harbor Laboratory, NY, 1979, pp. 303-309. 

Figure 2. Influence of activator concentration on DBTDB yield...

Studies of the influence of activation procedures on the characteristics of the resulting activated carbon employ synthetic solutions in which a single adsorbable solute is dissolved in water. Some recent studies indicate that a test solution containing two or more adsorbable solutes will reveal properties not disclosed when only a single solute is present. 

The influence of active transporters and the concentration dependency in vivo are not always clear. 

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