The first-order derivative of the function evaluated in xj in the direction Pj is given by the scalar product gjp.. [Pg.83]

If Xi is a saddle point, g = 0 and the condition (3.18) carmot be used to assess if P is a direction of function decrease or not. In this situation, it is necessary to use the Hessian matrix also. In fact, if g = 0 for small values of a , it results in [Pg.83]

To be effective, the antiozonants should have two important functions decrease the rate of crack growth in the rubber, and increase the critical stress value (i.e. the stress at which crack growth occurs). Therefore, the following properties of an antiozonant are desirable. [Pg.645]

This function decreases monotonically with increasing vibrational quantum number n, and hence an inverted vibrational distribution can never be described with a temperature (except for degenerate vibrations). A P n) distribution that is thermal , or at least not inverted, is indicative of a well on the PES that is connected with little or no barrier to the product asymptote. [Pg.222]

It can be shown that r(/, w, n, a) thus defined, for any constant real value of a, form a complete orthogonal set with respect to a function decreasing rapidly with increasing r, such as rd l/oldz. We shall assume a to be negative. We may, therefore, write... [Pg.3]

What was evident in 1950 was that very few surface-sensitive experimental methods had been brought to bear on the question of chemisorption and catalysis at metal surfaces. However, at this meeting, Mignolet reported data for changes in work function, also referred to as surface potential, during gas adsorption with a distinction made between Van der Waals (physical) adsorption and chemisorption. In the former the work function decreased (a positive surface potential) whereas in the latter it increased (a negative surface potential), thus providing direct evidence for the electric double layer associated with the adsorbate. [Pg.4]

Inhaled tobramycin (TOBI ) is typically administered to patients 6 years of age and older in alternating 28-day cycles of 300 mg nebulized twice daily, followed by a 28-day washout or off period to minimize development of resistance. Longterm intermittent administration improves pulmonary function, decreases microbial burden, and reduces the need for hospitalization for IV therapy.24,25 Due to minimal systemic absorption, pharmacokinetic monitoring is not necessary with normal renal function. Lower doses of nebulized tobramycin solution for injection have been used in younger children, and studies are underway using 300 mg twice daily in children under age 6. [Pg.252]

Several other factors also contribute to the development of anemia in patients with CKD. Uremia, a result of declining renal function, decreases the lifespan of RBCs from a normal of 120 days to as low as 60 days in patients with stage 5 CKD. Iron deficiency and blood loss from regular laboratory testing and hemodialysis also contribute to the development of anemia in patients with CKD. [Pg.383]

What risk factors does HT have for tumor lysis syndrome Why is the serum uric acid elevated and renal function decreased ... [Pg.1486]

The degrees of substitution of chloroformate functions belonging to iso-, hetero- and syndiotactic triads respectively have been calculated from the percentages shown in Table II. Their evolution with the total degree of substitution is plotted in Figure 2. It can be concluded that the reactivity of the chloroformate functions decreases in the following order ... [Pg.42]

The objective function, F, as a function of iteration, during the search is shown in Figure 6. The objective function decreases rapidly and has neared the minimum value after approximately 20 Iterations. The trial values for the rate constants are shown in Figure 7. The values for k level off after about 30 Iterations, while k., which has less effect on the value of the objective function, does not level off until about 60 iterations. The convergence criteria is not met until almost 120 iterations. Since the rate constants are essentially determined after 60 iterations, the computer time could be decreased without affecting the accuracy of the final answer by using a less stringent criteria. [Pg.246]

cardiac function decreases after myocardial injury, the heart relies on the following compensatory mechanisms (1) tachycardia and increased contractility through sympathetic nervous system activation (2) the Frank-Starling mechanism, whereby increased preload increases stroke volume (3) vasoconstriction and (4) ventricular hypertrophy and remodeling. Although these compensatory mechanisms initially maintain cardiac function, they are responsible for the symptoms of HF and contribute to disease progression. [Pg.95]

Lethal, 3 to 10 days respiratory depression, hypertensive crisis, cerebral bleeding, loss of deep tendon reflexes, decreased renal function, decreased liver function... [Pg.143]

Note that the mean-field EoS of the two-flavor INCQM in the normal phase can be described by a bag model with a small, and almost constant bag function whereas in the superconducting phase the bag function decreases with the density, see Fig. 8. Such a behavior has been parametrized in heuristic quark matter models, see e.g. [34],... [Pg.389]

The PL lifetime values r obtained by fitting a stretched exponential function decrease with increasing PL peak energy PPL. For micro PS dried in a vacuum, for which the PL energies range from 1.5 to 3.5 eV, this dependence can roughly be fitted to the empirical relation ... [Pg.146]

The negative sign on the right-hand side occurs because the Gibbs function decreases as r increases that is, work would have to be performed on the sedimenting particle to bring it back from an axial position at large r to a position at small r. [Pg.506]

In patients with severe CHF whose renal function may depend on the activity of the renin-angiotensin-aldosterone system, treatment with ACEIs may be associated with oliguria or progressive azotemia and, rarely, with acute renal failure or death. Impaired renal function decreases lisinopril elimination. The elimination half-life of quinaprilat increases as Ccr decreases. Dosage adjustment may be necessary for quinapril, benazepril, ramipril, and lisinopril. Impaired renal function decreases... [Pg.584]

Elderly Safety and efficacy appear similar to those of younger age however, the elderly may have reduced renal function. Decreased cimetidine clearance may be more common. [Pg.1370]

Santarelli L, Gobbi G, Debs PC, Sibfile EL, Blier P, Hen R, Heath MJS (2001) Genetic and pharmacological disruption of neurokinin 1 receptor function decreases anxiety-related behaviors and increases serotonergic function. Proc Natl Acad Sci U S A 98 1912-1917... [Pg.110]

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