Science, a story of discovery and progress [by] Ira C. Davis [and] Richard W. Sharpe.

Davis, Ira C.; Sharpe, Richard Worthy

doi:10.5962/bhl.title.39789

Cited by 30 publications

(42 citation statements)

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“…Taking these factors into consideration other hand there is a linkage with cyst formation in together with the presence of an active peptic ulcer, the gastric wall associated with chronic gastritis. it would seem highly probable that the solitary cyst Davis and Salkin (1947), discussing the origin of formation is primarily due to a developmental abnorthe intrathoracic gastric cysts, mention the work of mality and secondarily associated inflammatory changes. I n the first case consequent upon an embryonic out-pocketing of epithelial nodes capable of producing gastric mucosa, or, if we followed Keith's suggestion, due to failure of coalescence of the vacuoles in the alimentary tube, there develops a partly or completely detached portion of the stomach consisting of mucosa, submucosa, and muscle wall.…”

Section: Discussionmentioning

confidence: 99%

Cyst formation in relation to the stomach and oesophagus

Shaw

1951

Journal of British Surgery

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Section: Discussionmentioning

confidence: 99%

Cyst formation in relation to the stomach and oesophagus

Shaw

1951

Journal of British Surgery

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“…This enzyme was then further purified by CaM affinity chromatography [ 131 yielding a major protein band of Mr 53 000 ( fig.1 ; [ 13,191). Enzyme activity was measured by direct assay using boronate affinity methods [20].…”

Section: Methodsmentioning

confidence: 99%

The stimulation of cyclic nucleotide phosphodiesterase by A M_r 11 500 calcium binding protein from hepatoma

MacManus

1981

FEBS Letters

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“…Although there is no direct evidence for reactions [7], [8], and [9], it is quite likely, in view of their exothermicity, that these reactions occur.…”

Section: Liquid Phasementioning

confidence: 98%

“…At the temperatures used in this work the p e~l t a~l o~l y l radical does not decompose to any appreciable extent and will eventually disappear by a radical reaction such as [7], [8], [9], [13], [14], [15] or by one of the followi~lg reactions:…”

Section: Liquid Phasementioning

confidence: 99%

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The Liquid Phase Photolysis of Diethyl Ketone and Methyl Ethyl Ketone

Ausloos¹

1958

Can. J. Chem.

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The liquid phase photolysis of diethyl ketone has been studied in the temperature range from -35" to 95' C. The CO quantum yield a t 95' C. nras found to be close to unity. .At 28" C. decrease in intensity and addition of heptane led to a substantial increase of the CO and the ethane yields.The methyl ethyl ketone liquid phase photolysis a t temperatures between 5' and 75" C. led to the same observations. Arrhenius plots of Rp/Ru1/? [I<] ga\.e for both compounds a value of 5 k~a l . / mole.Gas phase studies in the temperature range of 0" to 60' C. confirmed the low CO quantum yield reported previously and showed evidence for disproportionation and recombinatioii reactions between ethyl and propionyl radicals. EXPERIMENTALEastman Icodak Company methyl ethyl ketone and diethyl ketone (white label) were distilled through 10 theoretical plates with rejection of large head ancl tail fractions. Air was removed by bulb-to-bulb distillation in the vacuum line.Gas phase experiments were performed with a Hanovia (16A-13) SH type medium pressure lamp. The cylindrical quartz cell (5 cm. diameter, 10 cm. long) was completely filled with a nearly parallel light beam.The liquids were irradiated in a quartz cell of 5 cm. diameter and 0.05 cm. depth. The cell was provided with two outlets, one of which was sealed after filling, while the other was closed by a break seal which made it possible to attach the cell to the analysis system after each experiment. Between runs the cell was washed out with diethyl ketone and dried a t about 150' C. The irradiation was carried out in a thermostat consisting of a brass cylinder with evacuated double walls and double quartz windows. For experiments above room temperature an electric im~nersion heater was brought into distilled water, while for the low temperature experiments the thermostat was filled with methanol cooled by dry ice. In this way it was possible to maintain the temperature constant within half a degree.At 3130 A about 98% of the incident radiation is absorbed by the undiluted ketone.In order to compensate for this sharp absorption decrease throughout the cell, two Hanovia lamps were placed opposite each other with the cell fixecl in the center of the nearly parallel light beam.Except for experiments 1 and 2 Corning filters (9-53) were used to cut off wavelengths below 2800 A. The incident intensity was varied by means of copper gratings.After irradiation of the liquid the cell was attached to the analysis system, consisting of three traps and one modified Ward still. The CO-CHI fraction was removed a t solid nitrogen temperature and was analyzed by combustion over hot CuO. The C~H C -C~H~ fraction was taken off a t -lGOO C. CzH4 was determined by hydrogenation over a Ni

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Science, a story of discovery and progress [by] Ira C. Davis [and] Richard W. Sharpe.

Cited by 30 publications

References 0 publications

Cyst formation in relation to the stomach and oesophagus

Cyst formation in relation to the stomach and oesophagus

The stimulation of cyclic nucleotide phosphodiesterase by A M_r 11 500 calcium binding protein from hepatoma

The Liquid Phase Photolysis of Diethyl Ketone and Methyl Ethyl Ketone

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Science, a story of discovery and progress [by] Ira C. Davis [and] Richard W. Sharpe.

Cited by 30 publications

References 0 publications

Cyst formation in relation to the stomach and oesophagus

Cyst formation in relation to the stomach and oesophagus

The stimulation of cyclic nucleotide phosphodiesterase by A Mr 11 500 calcium binding protein from hepatoma

The Liquid Phase Photolysis of Diethyl Ketone and Methyl Ethyl Ketone

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Product

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The stimulation of cyclic nucleotide phosphodiesterase by A M_r 11 500 calcium binding protein from hepatoma