Respiration mean values

Table II. Mean values for ATP and total adenylate content and photosynthesis and respiration rates of pinto bean leaves harvested over a 72-hr period following a 3-hr ozonation1...

For smokers, the personal mean values for particulate matter, in this instance respirable particle concentrations, were driven by the indoor air passive smoke (23). The studies summarized in Table III show similar information for other pollutants, and for many the outdoor levels are much lower than the indoor levels that result from the presence of specific indoor sources or activities (40). 

Seawater concentrations are the mean values of dissolved P, N and C in the deep ocean and the atmospheric saturation value in the atmosphere. Availability ratio refers to the concentrations of dissolved N, C and O2 relative to P. Use ratio refers to the relative stoichiometry of P, N, C, and O2 during respiration. 

Table 3-5 Mean values for Respiration (R), Production (P), and Assimilation (A) in kj/m year for different groups of animals ...

Reeburgh et al. (1993) estimated the global methane flux in marine sediments to a mean value of 70 Tg yr or 0.5 10 mol CH yr. This is equivalent to 2% of the entire organie earbon mineralization via oxygen respiration and about 7% of the global sulfate reduetion. A more recent estimate by Hinriehs and Boetius (2002) of AOM... 

Among the variously proposed mechanisms of exercise hyperpnea, the PCO2 oscillation hypothesis of Yamamoto [1962] has received widespread attention. According to this hypothesis, the controller may be responsive not only to the mean value of chemical feedback but also to its oscillatory waveform which is induced by the tidal rhythm of respiration. This hypothesis is supported by the experimental finding that alterations of the temporal relationship of the PaC02 waveform could profoundly modulate the exercise hyperpnea response (Poon, 1992b]. 

In contrast to the primary production, which is estimated by a wide use of radiocarbon techniques, the methods for calculation of the secondary production are based either on the data for the rate of weight growth at different stages of their lifecycle and their abundance, or on the use of physiological characteristics of the organism such as the daily ration, the proportion of the assimilated food in the ration, and the respiration. The data obtained with these methods allow estimation of the values of production of the main species of copepods and other animals [69]. The mean annual values of the... 

Figure 4 The global disequilibrium effect. value of CO2 currently fixed into plants (associated with photosynthetic discrimination, is lower than that of older CO2 respired back to the atmospheric CO2 (no fractionation is assumed). This is due to the rapid decrease in atmospheric associated with fossil fuel emissions, on the one hand, and to the slow turnover of carbon in the biosphere, on the other hand. A similar disequilibrium occurs in the ocean where the atmospheric trend influences the values of newly formed Die, while the ocean mean DIG pool lags behind this equilibrium values due to slow mmover rates (not shown). The atmospheric trend shown is based on the best fit line to the data of Francey et al. (1999) the land organic matter trend is obtained by appl3ung global mean = 18%o, and moving it back in time by 27 yr, the first order estimate of global mean soil carbon turnover time. The resulting 0.6%o disequilibrium for the 1990s is within the range of current estimates for both land and ocean.

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