scholarly journals Climatic consequences of very high carbon dioxide levels in the earth's early atmosphere

Science ◽  
1986 ◽  
Vol 234 (4782) ◽  
pp. 1383-1385 ◽  
Author(s):  
J. Kasting ◽  
T. Ackerman
Keyword(s):  
Carbon Dioxide ◽  
High Carbon ◽  
Early Atmosphere ◽  
Carbon Dioxide Levels ◽  
High Carbon Dioxide ◽  
Very High

scholarly journals Effect of. Oxygen and Carbon Dioxide on the Mitochondria of Sclerotium Rolfsh

1969 ◽  
Vol 22 (4) ◽  
pp. 1061
Author(s):  
NG Nair ◽  
NH White ◽  
DM Griffin ◽  
Suzanne Blair§
Keyword(s):  
Carbon Dioxide ◽  
Sclerotium Rolfsii ◽  
Yeast Cells ◽  
Low Oxygen ◽  
High Carbon ◽  
Anaerobic Conditions ◽  
External Stresses ◽  
Carbon Dioxide Levels ◽  
Effect Of Oxygen ◽  
High Carbon Dioxide

The number of mitochondria apparently vary with the energy requirements of the cell (see Rouiller 1960). Although swelling and multiplication of mitochondria have been observed to occur in cells, a quantitative analysis of these changes has not been recorded. Matile and Bahr (1968) have recently provided electron micro-scopic evidence of the heterogeneity of density, mass, and volume of the mitochon-drial population in respiring baker's yeast. There are reports in the literature of the complete absence of mitochondria in yeast cells growing under anaerobic conditions (see Marchant and Smith 1968). Griffin and Nair (1968) demonstrated that the growth of Sclerotium rolfsii was inhibited by concentrations of oxygen below 4% and by concentrations of carbon dioxide above 0�03 %. It was, therefore, thought worthwhile to study the changes in mitochondria of this fungus when the cells are subjected to external stresses of low oxygen and high carbon dioxide levels.

scholarly journals Iatrogenic gastric perforation during laparoscopy presenting on anaesthesia monitor

2014 ◽  
Vol 96 (5) ◽  
pp. e14-e15 ◽  
Author(s):  
MA Parvaiz ◽  
MA Pervaiz
Keyword(s):  
Carbon Dioxide ◽  
Gastric Perforation ◽  
Direct Vision ◽  
Atypical Presentation ◽  
Minimal Access ◽  
High Carbon ◽  
Carbon Dioxide Output ◽  
High Carbon Dioxide ◽  
Access Surgery ◽  
Very High

Unfortunately, in the era of minimal access surgery, visceral injuries due to laparoscopic port insertion are common. Most such injuries are diagnosed on direct vision through a laparoscope camera. We report a case of iatrogenic gastric perforation during laparoscopy, presenting in an unusual way in the form of a very high carbon dioxide output on the anaesthesia monitor. This atypical presentation should be borne in mind while performing laparoscopy.

scholarly journals Effects of Low Oxygen and High Carbon Dioxide Atmospheres on the Chilling Sensitivity of Cucumber Seedlings

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 539B-539
Author(s):  
Mary E. Mangrich ◽  
Mikal E. Saltveit
Keyword(s):  
Carbon Dioxide ◽  
Chilling Injury ◽  
Chilling Tolerance ◽  
Low Oxygen ◽  
High Carbon ◽  
Radicle Growth ◽  
Cucumber Seedlings ◽  
Carbon Dioxide Levels ◽  
The Individual ◽  
High Carbon Dioxide

Crops with origins in tropics and subtropics undergo physiological injury when subjected to nonfreezing temperatures below 12°C. Application of heat and chemical shocks to tissue prior to chilling induces chilling tolerance. This study was undertaken to investigate the effects of low oxygen and high carbon dioxide atmospheres on subsequent chilling tolerance. Cucumber seedlings (Cucumis sativus L., cv. Poinsett 76) with radicles 8 to 12 mm long were subjected to 0% to 21% oxygen and/or 0% to 20% CO2 atmospheres for 0 to 72 hr at 2.5 or 15°C. After chilling, they were placed at 25°C for three additional days. Radicle growth was used to assess chilling injury. Modification of the individual germination plates was necessary to ensure seedling exposure to the desired atmospheres. Chilling injury was reduced by exposure to oxygen levels below 1% and to carbon dioxide levels above 5%. Effects of brief exposures were small in comparison to prolonged exposures during chilling. Seed to seed variability was high and obscured some results. The effects of the various atmospheres were greater with the less vigorous seedlings.

Effects of High Carbon Dioxide Levels on Nutrition of Sheep

1969 ◽  
Vol 28 (4) ◽  
pp. 554-556 ◽  
Author(s):  
P. H. Knowlton ◽  
W. H. Hoover ◽  
B. R. Poulton
Keyword(s):  
Carbon Dioxide ◽  
High Carbon ◽  
Carbon Dioxide Levels ◽  
High Carbon Dioxide
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