Uptake of a metabolically inert amino acid by brain tissue during high pressure oxygen exposure

1972 ◽  
Vol 28 (11) ◽  
pp. 1277-1277 ◽  
Author(s):  
D. E. Holness ◽  
M. W. Radomski
Keyword(s):  
High Pressure ◽  
Amino Acid ◽  
Brain Tissue ◽  
Oxygen Exposure ◽  
Pressure Oxygen ◽  
High Pressure Oxygen

Effect of 6-hydroxydopamine on brain and blood catecholamine, ammonia, and amino acid metabolism in rats subjected to high pressure oxygen induced convulsions

1978 ◽  
Vol 56 (2) ◽  
pp. 334-336 ◽  
Author(s):  
A. K. Singh ◽  
E. W. Banister
Keyword(s):  
High Pressure ◽  
Amino Acid ◽  
Rat Brain ◽  
Amino Acid Metabolism ◽  
Acid Metabolism ◽  
Convulsive Activity ◽  
Pressure Oxygen ◽  
High Pressure Oxygen ◽  
6 Hydroxydopamine ◽  
Brain Gaba

Effects of 6-hydroxydopamine (6-OHDA) on rat brain and blood adrenaline (A), noradrenaline (NA), ammonia (NH3), γ-aminobutyric acid (GABA), and amino acid metabolism prior to and after high pressure oxygen (OHP) induced convulsions have been studied. 6-OHDA reduces GABA and glutamate (Glu) prior to OHP exposure in rat brain so that the concentration is even equal to that seen in nondrugged animals after convulsion. Concomitantly, 6-OHDA reduces the latency of OHP-induced convulsion significantly, and increases brain NH3, glutamine, and asparagine significantly. Although 6-OHDA, in increasing dosage, elevates blood A concentration, convulsion produces a significant further increase in A. Blood NA was not significantly changed in drugged, convulsed animals and was much less than blood NA concentrations in nondrugged convulsed animals. Increasing doses of 6-OHDA also increase NH3 in the blood significantly and convulsion increases its concentration further. Latency of convulsion seems to be related to certain monoamine levels since in some drugged animals where A and total catecholamines are still reduced 96 h after the first of two doses of 6-OHDA, NA concentrations are recovered to relatively normal and the convulsion latency time is also increased although it remains significantly abbreviated from undrugged animals' convulsion time. Low brain GABA levels seem to be a prime effector of convulsive activity.

HIGH PRESSURE OXYGEN A-BAND SPECTRA

2015 ◽  
Author(s):  
Brian Drouin ◽  
Jiajun Hoo ◽  
V. Devi ◽  
D. Benner ◽  
David Robichaud ◽  
...  
Keyword(s):  
High Pressure ◽  
Pressure Oxygen ◽  
High Pressure Oxygen ◽  
Band Spectra

High pressure oxygen iodine laser based on twisted flow singlet oxygen generator

2001 ◽  
Author(s):  
B. Vyskubenko ◽  
A. Adamenkov ◽  
S. Ilyin ◽  
Yu. Kolobyanin ◽  
I. Krukovsky ◽  
...  
Keyword(s):  
High Pressure ◽  
Singlet Oxygen ◽  
Iodine Laser ◽  
Pressure Oxygen ◽  
Twisted Flow ◽  
Oxygen Generator ◽  
Singlet Oxygen Generator ◽  
High Pressure Oxygen

Basic Characteristics of a Simultaneous Double-Side CMP Machine, Housed in a Sealed, Pressure-Resistant Container

2010 ◽  
Vol 447-448 ◽  
pp. 61-65 ◽  
Author(s):  
Kei Kitamura ◽  
Toshiro K. Doi ◽  
Syuhei Kurokawa ◽  
Yoji Umezaki ◽  
Yoji Matsukawa ◽  
...  
Keyword(s):  
High Pressure ◽  
Single Crystal ◽  
Effective Action ◽  
Single Crystal Silicon ◽  
Crystal Silicon ◽  
Pressure Oxygen ◽  
Gas Atmosphere ◽  
High Pressure Oxygen ◽  
Oxygen Gas ◽  
Basic Characteristics

We designed and manufactured a prototype of a unique CMP machine, which can perform double-side CMP simultaneously in a sealed and pressure container as regarding effective action of the processing atmosphere around workpieces as important. Polishing experiments with single crystal silicon (Si) wafers (100) are performed by charging the container with various gases. As a result, the removal rates increased by up to 25% under high pressure oxygen gas atmosphere.

The combustion of iron in high-pressure oxygen

1992 ◽  
Vol 89 (2) ◽  
pp. 221-228 ◽  
Author(s):  
Theodore A. Steinberg ◽  
George P. Mulholland ◽  
D.Bruce Wilson ◽  
Frank J. Benz
Keyword(s):  
High Pressure ◽  
Pressure Oxygen ◽  
High Pressure Oxygen
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