Yield response

A very useful constant used to characterize the propensity of a given system and a given agonist to yield response is the ratio [Rt]/KE- This is denoted x. Substituting for x yields the working equation for the... 

Experimental exposure of several agricultural crops to ambient levels of acidic pollutants has not established measurable yield responses although foliar damage has been observed. Complex interactions with other airborne pollutants, particularly ozone, makes it difficult to exactly establish the damages that may be attributed to acidic deposition 14), It has not been possible to establish any critical level of acidic deposition in relation to crop damages. 

To promote the use of poor quality water for irrigation, a field research study was conducted in three semi-arid regions with water scarceness in Syria in order to define, under field conditions, the wheat yield response function to irrigation water salinity, the effect of soil texture and structural characteristics on the irrigation water salinity threshold, and to compare this value with the conventional threshold value. 

Fischer, R. A. Maurer, R. (1978). Drought Resistance in spring wheat cultivars. I. Grain yield responses. Australian Journal of Agricultural Research, 29, 897-905. 

Using the principles of biological olfaction, electronic nose systems contain arrays of different types of cross-reactive vapor-sensitive sensors. While it is difficult to discriminate analytes entirely by their responses to a single type of sensor, using an array of sensors yields response patterns that can readily distinguish many different vapors. Ideally, the response mechanisms of the sensors are highly varied and encompass both physical and chemical phenomena1. 

Hea e, A. D. E. Body, and G. E. Neely. Injuty and yield responses of soybean to chronic doses of ozone and sulfur dioxide in the field. Phytopathology 64 132-136, 1974. 

Suppose, by chance (one in 362,880) you happened to assign the letters H, C, I, D, G, B, F, A, E to the solvents numbered 1, 2, 3, 4, 5, 6, 7, 8, 9 in Figure 2.11. If these solvents and their percent yield responses were listed in alphabetical order A-I, and a plot of percent yield vs. solvent letter were made, what naive conclusion might be drawn ... 

Both the parameter estimate bo and the standard uncertainty of its estimate depend on the Y matrix of experimental responses (see Equations 5.36, 5.28, and 5.43) if one set of experiments yields responses that agree closely, the standard uncertainty of bg will be small if a different set of experiments happens to produce responses that are dissimilar, the standard uncertainty of bg will be large. Thus, not only is the estimation of the parameter Pq itself subject to uncertainty, but the estimation of its standard uncertainty is also subject to uncertainty. 

Figure 1. Generalized Crop Yield Response to Duration of Weed Presence.

All the observed yield responses to changes in the RE content of the catalysts were in the same direction as those observed for vacnnm gas oil reported in the literature. This indicated that these changes are trne also for North Sea atmospheric residue. 

In this chapter we will focus on side chain functionalized supramolecular polymers as well as main chain noncovalent functionalized polymers, which are the two main areas of supramolecular polymers. We will initially discuss the design principles and methodology of side chain functionalization, in particular, multifunctionalization. In the later part of the chapter, we will discuss in detail two important applications of side chain functionalized supramolecular polymers. The first application involves the use of noncovalent interactions to yield highly functionalized materials, whereas the second application involves the reversible noncovalent cross-linking of polymers to yield responsive materials. 

A later paper presented the results of a study of the mechanism of the sympathomimetic cardiovascular actions of I.H Cats and dogs anesthetized with allobarbital-urethane were used for measurements of pressure near the bifurcation of the descending aorta and of blood flow with electromagnetic probes. Intravenous Injection of I at 20 mg/kg was found to produce an immediate, sharp increase in blood pressure lasting for about 25 s and followed after a lag of about 6 s by an increase in blood flow. A slow drift downward of the peak systolic pressure followed. Repetition of the dose of I after an hour yielded responses similar to those after the first dose, but... 

Two algorithms are available to perform all the calculations in a very simple way, namely the Box, Hunter and Hunter (BH ) algorithm and Yates s algorithm. Both are considered below for a typical and simple example of a 2 factorial design. Assume we are studying the influence of pH (A), temperature (B) and time (C) over the yield (response in %) of the extraction of a metal from a complex analytical matrix, just before conducting the extracts to an ICP device. The levels of each factor, fixed by the analyst, are pH (A), 3 (—), 5(4-) temperature (B), 40 (-), 60 C ( + ) and time (C), 1 (-), 2h. (- -). The matrix design and the experimental data are as follows ... 

Hoffmann-Hergarten, S., Gulati, M.K., Sikora R.A.. Yield response and biological control of Meloidogyne incognita on lettuce and tomato with rhizobacteria. J Plant Diseas Protect 1998 105 349-358. 

Sowers, R., "Yield response of gibberellin at Waialua Sugar... 

Figure 4. Liquid yield response to liquefaction residence time...

Paolini, R. and De Pace, C., Yield response, resource complementarity and competitive ability of Jerusalem artichoke (Helianthus tuberosus L.) and potato (Solanum tuberosum L.) in mixture, Agric. Med., 127, 5-16, 1997. 

For purposes of this discussion, attention is focused on the yield response variable, yr Notice first that the four y2 values from the center point of the experimental region have y = 53.2 and s= 1.13 (which incidentally already appear to be an improvement over typical process behavior). As a partial indication of the logic that can be used to investigate whether the dependence of yield on the experimental factors is simple enough to be described adequately by the data of Table 5.7, one can compute some estimated main effects from the first eight data points. That is, considering first the impact of the variable Xj (alone) on yield, the quantity... 

Concord grapes, peas, seed alfalfa, and seed clover as a result of damin-oxide treatments or the 50% increases in yield of pickling cucumbers because of ethephon. In addition, there are many crops where 10-15% increases have been consistently noted, but because of normal crop variability, these increases are not considered to be of economic importance. It would seem that it is only a matter of time before more active compounds are found or systems devised whereby available products can be utilized to provide the desired yield responses. 

Henderson, W.R. and R.A. Reinert. 1979. Yield response of 4 fresh market tomato (Lycopersicon esculentum) cultivars after acute ozone exposure in the seedling stage. J. Am. Soc. Hortic. Sci. 104 754-759. 

Initial screening tests for the previously listed drugs are typically immunoassays (e.g., EMIT, FPIA, CEDIA, microparticle immunoassay, and RIA see Chapter 9). These assays are calibrated at established cutoff concentrations. Specimens yielding responses greater than the cutoff (threshold) value are considered positive, whereas values below the cutoff are considered negative. Cutoff values are not synonymous with assay detection limits. Instead the... 

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