It has been generally assumed that the exchange of gases between the intercellular spaces of leaves and the external atmosphere occurs to an appreciable extent only when the stomates of the leaves are open. However, attempts to correlate the observed rate of CO2 absorption either with the number of stomates per unit area or with stomate area have met with only limited success. VERDUIN (16) beli...

Fossil fuels constitute a major energy resource for Canada. In 2002 alone, the production of oil, gas and coal contributed over $30 billion to the Canadian economy. Fossil fuel is presently the world’s most abundant, economical and reliable fuel for energy production. However, the industry now faces a major challenge because the production of fossil fuels including coal, crude oil and gas, and ...

The reliance of the world economies on the use of fossil fuels (i.e. coal, natural gas and oil) as primary source of energy, have contributes to the high emission of CO2 in atmosphere. One of the promising way to mitigate the CO2 emission is by implemented Post Combustion Carbon Capture (PCCC) through absorption process. PCCC by amines based solvent is a method to remove the carbon dioxide from...

Paired micropuncture experiments were carried out in plasma-replete volume-expanded rats to examine the acute effects of 1-desamino-8-D-arginine vasopressin (dDAVP) on urinary acidification and tubular handling of bicarbonate and chloride. No effect was detected on the fractional absorption of water, total CO2, and chloride at end-proximal and early distal sites of superficial nephrons in intac...

Recent studies of ice cores from Greenland and Antarctica have proven that both temperature and CO2 content of the earth’s atmosphere followed a regular 100,000 year cycle of change and that they are closely correlated. Moreover, the observed increase of CO2 in the atmosphere exceeds the predicted values extrapolated from historical data. Other than industrialization and rapid urbanization, geo...

Global measurement of atmospheric CO2 concentration from space is greatly desired for global and regional carbon budget studies. The biggest challenge for CO2 remote sensing from space is to achieve the high-precision science measurement requirement (~ 1 ppmv or 0.3% on regional scales) so that the satellite measurements will be able to remarkably reduce current large uncertainties about carbon...

In spite of the importance of the potato as a food, little is known about the effect of environmental factors on photosynthesis in the plant. Studies with several other crops (1, 12, 16, 23, 24) have not only added to the knowledge of photosynthesis but have aided in understanding certain responses of these crops to environmental variations. VERDUIN and LooMIs (24) and GABRIELSON (10) have show...