Oxygen-18 data

For some depth profiles, the dissolved oxygen data are best fit with a J term that is first order, i.e.,/= -k[02[, or exponential, i.e.,/ = [O... 

The dissolved oxygen data follow depth trends that are nearly a mirror image of the nutrients. The OMZ lies at depths slightly above the core of the AAIW. Why is the OMZ located at these depths To answer this question, oceanographers use the vertical concentration profiles of O2, nutrients, and TDIC to assess the relative rates of aerobic respiration and photosynthesis as a function of depth. (The TDIC concentration is used as a measure of how much CO2 has been taken up from or released into the water.)... 

Figure 3.3 Graph showing mean values for systolic blood pressure (SBP) and systemic vascular resistance index (SVRI) in young (n=20) and elderly (n=20) patients during induction of anaesthesia with isoflurane (1 MAC) in 100% oxygen. Data from McKinney MS, Fee JPH, Clarke RSJ. British Journal of Anaesthesia 1993 71 696-701.)...

Table IV. Dissolved Oxygen Data from 150°C Basalt + Synthetic Grande Ronde Groundwater Experiment (Run D2-16)...

Boyer T, Levitus S (1994) Quality control and processing of historical oceanographic temperature, salinity, and oxygen data. NOAA, Washington DC... 

The heteroatom elimination from total feed is plotted vs. temperature in Figure 11. The data show an increase in sulfur, oxygen, and nitrogen removal as the temperature increases. The scatter in the oxygen data is considerably greater than for either nitrogen or sulfur. 

Fig. 2 a Molar absorption coefficients for ferric species of interest (Fe3+ and FeOH2+), and b HO quantum yields obtained from photolysis of pH 3 ferric solutions in the wavelength range 280-370 nm in the presence and absence of oxygen (data from [10])... 

FIGURE 20.3. Data are from a healthy male volunteer, who breathed a low concentration of carbon monoxide and then oxygen at 2.5 atmospheric pressure, absolute. Blood was collected at different times after starting oxygen. Data points are taken from Pace et al. (1950) and may not be exactly the same as in their figure. Each point is the mean of triplicate determination and intercept indicates CO level at time zero prior to oxygen therapy. 

The results in Tables 1, 2, and 3 show that the weight loss on vacuum drying at 60°C was very inconsistent between laboratories on all three samples. The numbers vary by an unacceptable factor of 2 on samples No. 1 and No. 2 and by 30% on sample No. 3. Whatever the cause of this variation, it is clear that large discrepancies would result in the carbon, hydrogen, and oxygen values reported by these laboratories if the raw carbon, hydrogen, and oxygen data were corrected based on these reported moisture values. 

Methane Not pertinent (methane is an asphyxiant, and limiting factor is available oxygen) Data not available Data not available 200... 

The analytical forms for the functions g(x) are based on fits to the oxygen data of Weber (21). The form... 

This value of A corresponds approximately to the slope of the low-pressure, nearly straight-line curve in the P, V diagram. Tested on oxygen data in... 

Figure 6. Rate constants for electron transfer from nitro radical-anions or tirapazamine radical to oxygen. Data mainly from [134,153], and unpublished measurements by Mr. E. D. Clarke.

The section inverse approach developed by Wunsch exploits hydrographic data along sets of oceanographic sections, and allows estimation of absolute flow velocities perpendicular to the sections. The method was later extended to include nutrient and oxygen data allowing to estimate nutrient and oxygen fluxes across the sections. 

Historical dissolved oxygen data such as those for the northern Adriatic Sea beginning in 1911 are not commonly available. A solution is to turn to the sediment record for paleoindicators of long-term transitions related to eutrophication and oxygen deficiency. Biological, mineral, or chemical indicators of plant communities, level of productivity, or... 

Figure 1. Periodic table of the elements showing the heat of formation (in kcal/gram-atom) of the most stable solid oxide of each element. The more negative the value of AHf, the more strongly the element bonds to oxygen. (Data were taken from Refs. 2 and 3.)...

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