Outflow oxygen

In Fig. 1 we display the log(N/0) vs. time and log(N/0) vs. log(0/H)+12 behaviours predicted by two successful models for NGC 1569 and NGC 1705. These models well reproduce several observational constraints - the present-day gaseous and total masses as well as the overall metallicity and oxygen content of the gas - by adopting the same prescriptions on the stellar nucleosynthesis, stellar IMF and galactic outflow onset conditions and efficiency. However, as can be seen from Fig. 1, the present-day N/O ratio is reproduced only for NGC 1569, whilst for NGC 1705 the theoretical N/O ratio during the last 4 Gyr of galaxy s evolution is 0.3-0.4 dex higher than observed at the present time. 

Regardless of the etiology, fall in blood pressure (BP) is compensated by an increase in sympathetic outflow, activation of the renin-angiotensin system, and other humoral factors that stimulate peripheral vasoconstriction. Compensatory vasoconstriction redistributes blood away from the skin, skeletal muscles, kidneys, and GI tract toward vital organs (e.g., heart, brain) in an attempt to maintain oxygenation, nutrition, and organ function. 

Fig. 9.5. Schematic of decline of D and growth of 7Li and oxygen abundances in the Simple or homogeneous outflow model, assuming instantaneous recycling with a = 0.67 and yields p(O) = 0.8 Zq(O) p(7Li) = 0.7 Z0(7Li) Zo(7Li) =...

It will be assumed that, within the tank itself, both gas and liquid phases are well-mixed. Figure 4.S shows a diagram of the reactor. The inflow of fresh o-xylene and the outflow of the products are shown as broken lines since they do not enter into the calculation. Also it is assumed that because the reaction is relatively fast and the solubility of oxygen is low, only a negligible amount of dissolved but unreacted oxygen leaves in the product stream. 

In addition to trapped gases in their surfaces, Ganymede and Callisto both have tenuous extended atmospheres as well. Molecular oxygen has been identified as one constiment of Ganymede s atmosphere (Hall et al., 1998) with a column density of 5 X 10 " cm . Galileo observations also show a hydrogen exosphere (Barth et al., 1997) and evidence for proton outflow (Frank et al., 1997). Callisto s atmosphere is of similar density ( 8 X 10 " cm ) but the identified constituent is CO2 (Carlson, 1999). 

The hepatic blood flow is decreased in chronic heart insufficiency, and there is disturbed venous outflow, i. e. cardiac output is diminished. There is also a pressure increase in the splanchnic nerve area with subsequent blood pooling as a result of the rise in CVP. The markedly reduced hepatic blood flow at first evokes an increase in oxygen extraction, but after its elimination, hypoxia with centrilobular cell necroses follows. The elevated CVP extends as far as the central veins, so that dilatation and hyperaemia of the sinusoids occur. Pericentral atrophy in the liver cell trabeculae develops at a later stage, (s. tab. 39.1) (s. fig. 39.3)... 

In addition to inflow and outflow of Fe, we need expressions for the rate of reduction of Fe(III) (hydr)oxides and for the reoxidation of Fe by oxygen. The rate of photochemical Fe(II) formation depends on the light intensity I and the surface concentration of the specifically adsorbed ligand (electron donor) ... 

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