Activity range

Table 4 shows, the sources are available with physical sizes ranging from 1 mm x 1 mm up to 3 mm x 3 mm. They are produced from firmly compressed selenium pellets of cylindrical shape. The activities range up to 3 TBq or 80 Ci, which is the maximum allowed loading of the GammaMat SE portable isotope transport and working container, as well as the Source Projector M-Se crawler camera. 

Sodium lauryl sulfate is available in solution, paste, and soHd forms. As a solution its activity ranges between 28—30%, and as a paste it is 55% active. With this detergent in a shampoo, inorganic salts can affect viscosity. In addition, the limited solubiHty of sodium lauryl sulfate requires its judicious use in low cloud point clear shampoo systems. 

In the United States the Clean Coal Technology program was created to develop and demonstrate the technology needed to use coal in a more environmentally acceptable manner. Activities range from basic research and estabUshing integrated operation of new processes in pilot plants through demonstration with commercial-scale equipment. 

At die slag-matte interface, the activity of FeO can be 0.3 as a maximum before Si02 saturation sets in. The activity of FeS can be assumed to vary over die activity range aFeS = 0.5-10 during the process, and so the oxygen... 

According to the current density-potential curves in Figs. 2-18 and 21-11, carbon steels can be passivated in caustic soda [27-32]. In the active range of the... 

As with most other metals, the anodic behaviour of nickel is influenced by the composition of the solution in which measurements are made, particularly if the solution is acidic. Acidic solutions containing d ions or certain sulphur compounds in particular have a pronounced influence both in increasing the rate of anodic dissolution in the active range and in preventing passivation, and in stimulating localised corrosion . Thiourea and some of its derivatives have a complex effect, acting either as anodic stimulators or inhibitors, depending on their concentration . 

Fig. 4.32 Anodic behaviour of Ni-Al alloys in 0-5 m H2SO4, de-aerated with H2, at 22°C the potential was increased by 0-01 or 0-02 V every 3 min in the active range and by 0-04 V in the passive range (after Crow, era/. )...

Fig. 7.76 Superimposed simplified thermodynamic stability diagrams for three elements with oxygen and sulphur at 871°C. The shaded rectangle indicates possible activity ranges in coal gasification atmospheres (after Stringer )...

Ligands that bind to the receptor, but do not exert a maximal cellular reaction when applied at saturating concentrations are referred to as partial agonists. Their remaining activity is termed intrinsic activity ranging between 0% and 100%. 

Tamplin et. al. (54) observed that V. cholerae and A. hydrophila cell extracts contained substances with TTX-like biological activity in tissue culture assay, counteracting the lethal effect of veratridine on ouabain-treated mouse neuroblastoma cells. Concentrations of TTX-like activity ranged from 5 to 100 ng/L of culture when compared to standard TTX. The same bacterial extracts also displaced radiolabelled STX from rat brain membrane sodium channel receptors and inhibited the compound action potential of frog sciatic nerve. However, the same extracts did not show TTX-like blocking events of sodium current when applied to rat sarcolemmal sodium channels in planar lipid bilayers. 

The age of Green tuff volcanic activity ranges widely from ca. 25 Ma to 2 Ma. Volcanic activity during the early to middle Miocene (25-15 Ma) was intensive, whereas it was weak during the late Miocene to early Quaternary (Sugimura et al., 1963) (Fig. 3.1). The production of lavas and other effusives per unit time reached five or six time more... 

Sol-gel-derived membranes encapsulating a bis(crown ether) derivative [bis(12-crown-4-ylmethyl) 2-dodecyl-2-methylmalonate] [28] were also fabricated with an initial DEDMS/TEOS ratio of 3 for Na -ISFETs. The Na -ISFETs showed a Nernstian response to Na+ activity changes in the activity range of 1 x 10 " to 1 M and a short response time of 2 s. Employment of a polythiophene interlayer improved the potential instability and the lower detection limit in both of the K - and Na -ISFETs based on the sol-gel-derived membranes with the initial DEDMS/TEOS ratio of 3 (Fig. 8). 

Typical profiles for the potential response of Na -ISFETs based on the sol-gel-derived membranes modified chemically by alkoxysilylated 16-crown-5 (7) and bis(12-crown-4) (11), together with anion excluder (9) show that both of the Na -ISFETs have high sensitivity with a Nernstian response to Na activity changes in wide activity ranges of 3 x 10 to 1 M (Fig. 12). The potential response is quite fast in the Na -ISFETs in spite of the covalent bonding of the neutral carriers to the ion-sensing membranes, as exemplified in the membrane system of the bis(12-crown-4) (11). Some mobility of the chemically bonded neutral carriers can probably be maintained in the present sol-gel-derived membranes. The response time ( 9o) is several seconds for both of the Na -... 

A plot or graphical representation of the number of samples present in each activity range. Often shown as a population bar chart, it is used to provide an overview of the screening results and typically allows the determination of the overall BACKGROUND signal and threshold for selection of ACTIVE samples. 

Drug Receptor Affinity Intrinsic Usual Sympathomimetic Dose Activity Range ... 

ACE-1 Angiotensin-converting enzyme inhibitor AROM Active range of motion... 

Badawy et al. (2002) reported that in near neutral and alkaline soils, representative alluvial, desertic and calcareous soils of Egypt, lead activity ranged from 10 677 to 10 4 83 M, and was negatively correlated with soil and soil solution pH. It could be predicted in soil solution from the equation log (Pb2+) = 9.9-2pH. In German noncontaminated soil with 2.3% CaC03 and soil pH 8.5, Zn, Cu and Cd are 1.87, 0.66, and 0.20 pM/L in soil solution, respectively (Helal et al., 1996). 

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