EXPLANATION screens

Explanation Screens. In addition to HELP screens that instruct the user how to do something, EXPLANATION screens tell the user why she or he is being asked to make a choice or enter data. A brief explanation of the relevance of a particular choice to the overall risk assessment process is provided if appropriate, alternative values for data entries are given. 

The screened proton model of nickel or palladium hydrides and Switendick s concept of the electronic structure do not constitute a single approach sufficient to explain the observed facts. In this review, however, such a model will be used as the basis for further discussions. It allows for the explanation and general interpretation of the observed change of catalytic activity of the metals, when transformed into their respective hydrides. 

The full-screen background is light blue and features the SMAC initials in varying positions and sizes so that a uniform non-distracting background is achieved, even if the active window does not fill the full screen. Use of color was restricted to visually distinguishing classes of information (pastel eolors), and to prompt the user (yellow explanation and pale yellow input fields (data)). 

C08-0030. Write brief explanations of (a) screening (b) the Pauli exclusion principle (c) the aufbau principle (d) Hund s rule and (e) valence electrons. 

C08-0040. Refer to Table 84 to answer the following questions. In each case, provide a brief explanation of your choice, (a) Which ionization energies show that an electron in a 1 S orbital provides nearly complete screening of an electron in a 2 orbital (b) Which ionization energies show that the stability of a = 2 orbitals increases with ... 

C08-0120. Make an electron density plot that shows how the 3. S and 3 p orbitals are screened effectively by the 2 p orbitals. Provide a brief explanation of your plot. 

There are two explanations for the small shrinkage in hydrochloric acid. One is that the deformation may be caused by the electrostatic forces between the anode and the negatively charged polyions in the gel. The other relates to the screening effect of COO H + by CP which comes in from the D phase. As a large number of CP ions restrain interactions between COO H+, the gel will shrink. 

Explanation of Principal Application Codes 1 = screening 6 = reaction due to oxidation 2 = thermal stability 7 = runaway behavior (initial phase) 3 = sensitive thermal stability 8 = complete runaway behavior and 4 = very sensitive thermal stability simultaneous pressure measurements 5 = study autocatalysis, contaminations, 9 = time to maximum rate of reaction inhibitor depletion ... 

A stimulus-filter model of nicotine reinforcement has been proposed that suggests that it helps screen irrelevant stimuli from awareness (Kassel 1997). An alternative explanation asserts that nicotine induces attentional narrowing and facilitates perceptual processing. Human nonsmokers given an acute dose of nicotine (administered in gum) showed dose-related trends toward decreased accuracy and increased response time (Heishman et al. 1993). 

For those readers who are not yet familiar with mass spectrometry, the introduction provides an explanation of the basics of mass spectrometry and its instrumentation as well as practical aspects and applications in bioanalysis. Next, a block of three chapters shows different affinity selection procedures suitable to identify hits from combinatorial compound libraries. This subject, being metaphorically speaking a search for a needle in a haystack, is of outstanding relevance for big pharma . The techniques described here offer real high throughput capabilities and are implemented already in the routine industrial screening... 

The trend of radii vs. Z shown in Fig. 2 finds then an explanation consistent with the picture of ion cores, each containing a 4P non-binding shell. In fact, the 4f" shells screen only imperfectly the outer electrons. Adding one nuclear charge when going from Z to Z -f 1, means increasing the central field of the nucleus, without increasing as efficiently... 

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