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Outline of proram for testing air-supplied face masks used in P-10 atmospheres

Description: This report consists of an outline for a program for testing the air-supplied face masks currently being used as protection against P-10 atmospheres at HAPO. The test procedures which follow are intended to determine circumstances under which the mask ceases to offer protection to the wearer. To keep the scope of the test program to a minimum and also to facilitate interpretation of the findings in the light of P-10 atmospheres, the test conditions chosen were those which would be most unfavora… more
Date: September 11, 1950
Creator: Adley, F. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Relationship Between the Metabolic Pools of Photosynthetic and Respiratory Intermediates

Description: Using radioactive carbon dioxide, an attempt has been made to distinguish the various pools of intermediary metabolism which may be physically or chemically separate within the cell. Some correlation between the structural elements of the cells and these pools appears possible.
Date: July 1, 1958
Creator: Moses, V.; Calvin, M.; Holm-Hansen, O. & Bassham, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Relation of Quantum Requirement in Photosynthesis toRespiration

Description: 1. The r a t e s of photosynthesis and subsequent respiration of Chlorella pyrenoidosa were measured using an oxygen analyzer (sensitive to paramagnetism). The energy absorbed during the photosynthesis periods was determined and the quantum requirement was calculated. 2. Dark respiration r a t e was found to depend on the r a t e of light absorption during the period of photosynthesis, and increased with increasing photosynthesis rate. 3 . The quantum requirement, corrected for respiration, var… more
Date: January 21, 1955
Creator: Bassham, James A.; Shibata, Kazuo & Calvin, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Photosynthetic Cycle and Respiration: Ligh-DarkTransients

Description: Studies of the transient changes in radiocarbon found in various photosynthetic and respiratory intermediates in Scenedesmus, which result when changing from a condition of steady-state photosynthesis in the light to dark and then back to light again, indicate the following metabolic mechanisms: (a) The carboxylation step in the carbon-reduction cycle of photosynthesis results in the formation of two molecules of 3-PGA from one RuDP molecule, one CO{sub 2}, and one H{sub 2}O: (b) This carboxyla… more
Date: March 1, 1956
Creator: Bassham, James A.; Shibata, Kazuo; Steenberg, Kjell; Bourdon,Jean & Calvin, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Path of Carbon in Photosynthesis. XX. The Steady State

Description: The separation of the phenomenon of photosynthesis in green plants into a photochemical reaction and into the light-dependent reduction of carbon dioxide is discussed, The reduction of carbon dioxide and the fate of the assimilated carbon were investigated with the help of the tracer technique (exposure of the planks to the radioactive C{sup 14}O{sub 2}) and of paper chromatography. A reaction cycle is proposed in which phosphoglyceric acid is the first isolable assimilations product. Analyses … more
Date: September 1, 1952
Creator: Calvin, M. & Massini, Peter
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

THE RELATION OF PHOTOSYNTHESIS TO RESPIRATION

Description: The gas exchange by barley leaves of oxygen, carbon dioxide, and added radiocarbon dioxide has been measured in a closed system, with the following results: 1. Carbon dioxide follows different but not necessarily independent paths in photosynthesis and light respiration. 2. The carbon of newly formed photosynthetic intermediates is not available for respiration while the light is on, but becomes immediately respirable in the dark, The enhancement of dark respiration after a light period is larg… more
Date: July 20, 1950
Creator: Weigl, J. W.; Warrington, P. M. & Calvin, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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