Sensitivity, increase

Improvement of spectral sensitization can be accompHshed by dye combinations. The effect has been found to often be greater than the predicted additive sensitivity increase. This phenomenon is called supetsensitization (94), which is appHed most effectively to polymethine aggregates (96). 

Increased flexibility Increased water sensitivity Increased ease of solvation... 

Increased flexibility Increased dispersing power Increased water sensitivity Increased adhesion to hydrophobic surfaces... 

Fluorescence intensifier Substances Sensitivity increase/ stabilization Remarks/references... 

Figure 7b also illustrates the high detection sensitivity of the FTMS instrument. We calculate that the CO peak corresponds to approximately 5000 ions in the analyzer cell. In Figure 7a, the number of ions with m/z 43 was calculated to be approximately 20 million. A point to note is that In FTMS the sensitivity increases with resolution whereas it decreases with other mass spectroscopies. 

Since the frequency can be measured within an accuracy of 1 Hz, a 5-MHz EQCM can detect lOng/cm. This corresponds to 10% of a monolayer of Pb atoms. Much higher sensitivity can be achieved with thinner quartz crystals operated at higher frequencies, as the sensitivity increases with/g. 

Oil-based fluids Water sensitive increased fire hazard... 

As the sensitivity increases, the IDL decreases, and as the instrumental noise decreases, so does the IDL. These aspects are key to selecting the correct instm-ment/detector system to perform the analysis. 

Sensitivity increases as the carbon nradier increases Sensitivity for alkanes < alkenes < aroaatics... 

AOS responsiveness to hormonal influences is shown in the action of sodefrin on the lateral nasal sinus of newts (Cynops). The receptors in the accessory pocket are differentially affected by pituitary and ovarian hormones (Toyoda et al., 2000). The local EOG response to the pheromone (Fig. 5.1) was enhanced by the presence of prolactin or of estrogen alone. Receptor sensitivity increase is perhaps an alternate strategy to AOS receptor density increase several alternate routes of signal receptor adaptation (Fig. 7.1) have been hypothesised (Sorenson and Stacey, 1998). 

When aqueous solutions of the polymerisation initiators 2,2/-azobis(2-amidinio-propane) chloride and sodium peroxodisulfate are mixed, the title compound separates as a water insoluble shock-sensitive salt. The shock-sensitivity increases as the moisture level decreases, and is comparable with that of lead azide. Stringent measures should be used to prevent contact of the solutions outside the polymerisation environment. (The instability derives from the high nitrogen (21.4%) and oxygen (31.6%) contents, and substantial oxygen balance, as well as the structural factors present in the salt.)... 

Mixtures of sodium (or its alloy with potassium) and nitromethane, trichloroni-tromethane, nitrobenzene, dinitrobenzene, dinitronaphthalene, ethyl nitrite, ethyl nitrate or glyceryl nitrate are shock-sensitive, the sensitivity increasing with the number of nitro groups. 

It has already been noted that the temperature sensitivity of developmental route is different for different isofemale lines when compared at one time point in an infection (Fig. 5.4). If this sensitivity is considered through an infection, it can be seen that the sensitivity increases during an infection (Fig. 5.5) (Harvey et al., 2000) here the difference in the proportion of larvae that develop into free-living females and iL3s at 19 and at 25°C becomes greater as an infection progresses. However, if the temperature sensitivity of larvae passed from immunologically intact animals is compared with that of larvae passed from hypothymic (nude) rats, it can be... 

From the above discussion, it is obvious that response time of a system and its sensitivity are intrinsically linked. In fact they have a reciprocal relationship. As sensitivity increases it is possible to look at bimolecular reactions of species at lower and lower concentrations. In these circumstances the requirements on the response time for a system will get less and less. Of course, there are limits to how far this can be pushed, particularly with time resolved IR measurements in solutions, where absorption by the solvent is significant. Also, as indicated previously, coordination of a nascent photofragment by solvent molecules can occur on an exceedingly rapid timescale (15). Additionally, as the concentration of added reactant is diminished, reactions with impurities in the solvent or with small concentrations of atmospheric gases become a problem. Nevertheless, over a wide range of concentration there is a trade-off between minimum detectable signal and timescale. 

The intensity of SHG is low but readily detectable for a photomultiplier. Note that although the sensitivity increases quadratically with laser intensity, the possibility of damage requires that the energy per unit area remains below a certain threshold value... 

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