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Decreasing map

A decrease in plasma volume leads to decreased MAP, which is detected by baroreceptors in the carotid sinuses and the arch of the aorta. By way of the vasomotor center, the baroreceptor reflex results in an overall increase in sympathetic nervous activity. This includes stimulation of the heart and vascular smooth muscle, which causes an increase in cardiac output and total peripheral resistance. These changes are responsible for the short-term regulation of blood pressure, which temporarily increases MAP toward normal. [Pg.336]

For example, the hypothesis that DCLHb would improve blood pressure, organ perfusion, and mortality was tested in a rodent model of sepsis. Administration of this tHb to moribund, septic rats immediately reversed the decreased MAP, increased systemic vascular resistance (SVR) and by 24 h, significantly elevated perfusion to vital areas (intestines, heart, and brain) as compared to albumin-treated animals. In addition, areas that did not display an increase in perfusion also did not demonstrate any deficits, suggesting that they were being adequately perfused. [Pg.371]

Limonene was found to decrease monocyte chemoattractant protein-1 (MCP-1) production in df-HL-60 cells at concentrations greater than 14.68 mmol/L. MCP-1 is one of the C-C chemokines that are spontaneously produced by eosinophile. Diesel exhaust particles-induced MCP-1 production was also reduced by limonene at a concentration of 14.68 mmol/L. Furthermore, the activity of NFkB in relation to the treatment of limonene was signi cantly decreased. MAP kinase pathway was also suppressed by limonene. These tests showed promising anti-in ammatory activity of limonene (Hirota et al., 2010). [Pg.295]

The following proposition shows that monotone map>s have a canonical decomposition in terms of increasing and decreasing map>s. [Pg.236]

Hence we need to combine the two maps to arrive at a net oil sand map (3). The odd shape is a result of that combination and actually it is easy to visualise at the fault the thickness of oil bearing sand will rapidly decrease to zero. The same is the case at the OWC. Where the net sand map indicates 0 m there will be 0 m of net oil sand. Where the channel is best developed showing maximum thickness we will encounter the maximum net oil sand thickness, but only until the channel cuts through the fault or the OWC. [Pg.156]

An observation of the results of cross-validation revealed that all but one of the compounds in the dataset had been modeled pretty well. The last (31st) compound behaved weirdly. When we looked at its chemical structure, we saw that it was the only compound in the dataset which contained a fluorine atom. What would happen if we removed the compound from the dataset The quahty ofleaming became essentially improved. It is sufficient to say that the cross-vahdation coefficient in-CTeased from 0.82 to 0.92, while the error decreased from 0.65 to 0.44. Another learning method, the Kohonen s Self-Organizing Map, also failed to classify this 31st compound correctly. Hence, we had to conclude that the compound containing a fluorine atom was an obvious outlier of the dataset. [Pg.206]

The electrostatic po tential map of pyri 5 dine on/.earn/ng Sy Modeling clearly shows its decreased tt electron density... [Pg.507]

The S—H bond is less polar than the O—H bond as is clearly seen m the elec trostatic potential maps of Figure 15 7 The decreased polarity of the S—H bond espe cially the decreased positive character of the proton causes hydrogen bonding to be absent m thiols Thus methanethiol (CH3SH) is a gas at room temperature (bp 6°C) whereas methanol (CH3OH) is a liquid (bp 65°C)... [Pg.649]

It would appear that the tradeoffs between these two requirements are optimized at the phase transition. Langton also cites a very similar relationship found by Crutchfield [crutch90] between a measure of machine complexity and the (per-symbol) entropy for the logistic map. The fact that the complexity/entropy relationship is so similar between two different classes of dynamical systems in turn suggests that what we are observing may be of fundamental importance complexity generically increases with randomness up until a phase transition is reached, beyond which further increases in randomness decrease complexity. We will have many occasions to return to this basic idea. [Pg.105]

For small enough values of p so that pf p) < p for all 0 < p < 1, p = 0 will be the only fixed point. As p increases, there will eventually be some density p for which pf p ) > p in this case, we can expect there to be nonzero fixed point densities as well. Qualitatively, the mean-field-predicted behaviors will depend on the shape of the iterative map. If / has a concave downward profile, for example (i.e. if/" < 0 everywhere), then, as p decreases, Poo decreases continuously to zero at some critical value of p = Pc- Note also that the iterative map /jet for the deterministic rule associated with its minimally diluted probabilistic counterpart is given by /jet = //p-... [Pg.356]

These properties include (l)a continuous decrease in the average density of turbulent sites as the threshold is approached from above (with exponent /3) (2) divergence of the average transient time (3) algebraic distributions of the sizes and durations of laminar clusters at the threshold (with exponents and < ). Houlrik, Webrnan arid Jensen [houl90] discuss the critical behavior of this map from a mean-field theoretic perspective. [Pg.402]

In contrast with amines, amides (RCONH ) are nonbasic. Amides don t undergo substantial protonation by aqueous acids, and they are poor nucleophiles. The main reason for this difference in basicity between amines and amides is that an amide is stabilized by delocalization of the nitrogen lone-pair electrons through orbital overlap with the carbonyl group. In resonance terms, amides are more stable and less reactive than amines because they are hybrids of two resonance forms. This amide resonance stabilization is lost when the nitrogen atom is protonated, so protonation is disfavored. Electrostatic potential maps show clearly the decreased electron density on the amide nitrogen. [Pg.922]

Acid rain is a regional phenomenon. The areas in different colors on the map to the right indicate constant values of the pH of rain. Notice that the pH of rain decreases down-... [Pg.550]

These maps ot stratospheric ozone concentration over the North Pole snow how the ozone was depleted from 2001 to 2003. Red areas represent ozone concentrations greater than 500 Dobson units (DU) the concentrations decrease through green, yellow, and blue, to purple at less than 270 DU. Normal ozone concentration at temperate latitudes is about 350 DU. [Pg.689]

On the isopotential map three minima (III, IV, V) are separated by barriers. They can be reached by decreasing of the distance R between the educts (I) via an activated complex (II). A detailed discussion of this potential energy surface also under the influence of a solvent will be given in part 4.3.1. [Pg.184]

There has been relatively little work done on the development of two-phase flow regime maps for micro-channels. The general trends of how the transition lines are shifted as the diameter is decreased are unclear. Figure 5.19 shows a flow pattern map obtained for air-water two-phase flow in a 20 pm i.d. silica tube by Serizawa et al. (2002) at nearly atmospheric pressure. [Pg.219]

Short-chain acyl-CoA dehydrogenase (SCAD) deficiency has been recorded in only a few patients and these show wide variation in clinical presentation. The defect has been seen in infants with a syndrome of psychomotor retardation and failure to thrive. These infants showed abnormal organic aciduria, and drastically decreased SCAD activity was demonstrable in cultured fibroblasts. Muscle symptoms were only part of a wider syndrome in all infants and children so far reported to have SCAD deficiency, but were the sole presenting feature in two adult patients, in whom lipid storage was demonstrable in skeletal muscle. The gene encoding for human SCAD has been mapped to chromosome 12. [Pg.306]

The flame maps shown in Figure 8.3.12 indicate reduction of peak temperatures with the increase in the EGR content, and this translates into tangible decrease in engine-out NO,.. While using EGR is a very effective way of reducing its percentage and thus magnitude of NO t reduction in a practical application is limited by the increased soot formation. [Pg.192]


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See also in sourсe #XX -- [ Pg.236 ]




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