A Compact Soil Perfusion Apparatus

Nature ◽  
1956 ◽  
Vol 178 (4541) ◽  
pp. 1073-1074 ◽  
Author(s):  
F. M. COLLINS ◽  
C. M. SIMS
Keyword(s):  
Compact Soil ◽  
Perfusion Apparatus

A Four-Year Study of Biomass Production of Eastern Gamagrass Grown on an Acid Compact Soil

2003 ◽  
Vol 34 (3-4) ◽  
pp. 457-480 ◽  
Author(s):  
Donald T. Krizek ◽  
Jerry C. Ritchie ◽  
Ali M. Sadeghi ◽  
Charles D. Foy ◽  
Errol G. Rhoden ◽  
...  
Keyword(s):  
Biomass Production ◽  
Compact Soil ◽  
Eastern Gamagrass

Simple perfusion apparatus for the study of oocytes

2013 ◽  
Vol 100 (3) ◽  
pp. S234
Author(s):  
L.M. Brayboy ◽  
N. Oulhen ◽  
S. Angione ◽  
A. Tripathi ◽  
G. Wessel
Keyword(s):  
Perfusion Apparatus

Inhibitory effect of cardiac contraction on coronary collateral blood flow

1977 ◽  
Vol 233 (5) ◽  
pp. H541-H546 ◽  
Author(s):  
R. E. Russell ◽  
R. W. Chagrasulis ◽  
J. M. Downey
Keyword(s):  
Blood Flow ◽  
Left Coronary Artery ◽  
Constant Pressure ◽  
Inhibitory Effect ◽  
Cardiac Contraction ◽  
Collateral Blood Flow ◽  
Ischemic Region ◽  
Perfusion Apparatus ◽  
Collateral Vessels ◽  
Coronary Collateral Blood Flow

The present study was undertaken to determine the effect of contraction on overall flow in an area supplied by collateral vessels. Changes in the distribution of blood flow across the wall of ischemic and normally perfused regions of the left ventricle were observed during normal beating and during vagal arrest. The main left coronary artery was cannulated and perfused at constant pressure (125 mmHg) using a servo pump apparatus. An ischemic area supplied by collaterals was created by ligating the left anterior descending artery. Radiomicrospheres (15 micrometer) were injected into the perfusion apparatus during beating. Then spheres with a different label were administered to the same heart during arrest. The results revealed that beating caused a gradient of blood flow inhibition from near zero at the epicardium to about 50% at the endocardium in both zones. Inhibition to flow at the mid wall of the ischemic zone, 71%, was significantly greater than that seen at the corresponding depth in the normally perfused region, 33%. These results indicate that contraction not only inhibits collateral blood flow to an ischemic region, but also that the inhibition is actually magnified at the mid wall.

Effect of insulin on potassium and glucose movement in perfused rat liver

1965 ◽  
Vol 209 (6) ◽  
pp. 1145-1151 ◽  
Author(s):  
Stanley D. Burton ◽  
Tadashi Ishida
Keyword(s):  
Rat Liver ◽  
Whole Blood ◽  
Intact Animal ◽  
Liver Glycogen ◽  
Recovery Phase ◽  
Perfused Rat Liver ◽  
Blood Insulin ◽  
Perfusion Apparatus ◽  
Normal Rat

When the liver from a normal rat is transferred to an extracorporeal perfusion apparatus, there is a marked release of potassium and glucose to the perfusing medium attributed primarily to the anoxia incident to removal of the liver from the intact animal. This glycogenolytic response subsided within 30 min as reflected by a rapid uptake of glucose in the absence of a recovery of potassium when livers were perfused with whole blood and a decreased outflow of glucose when livers were perfused with diluted blood. The administration of insulin during this recovery phase resulted in a prompt uptake of potassium from whole-blood perfusate which preceded any demonstrable increase in the uptake of glucose by the liver. These findings indicate that the extracorporeal perfused rat liver is responsive to added insulin despite the initial anoxia and suggest 1) that insulin is required by the liver for the recovery of potassium lost during glycogenolysis and 2) the transfer of glucose into the liver is dissociated from the transfer of K+. In perfusions with diluted blood, insulin inhibited the net accumulation of perfusate glucose, an effect possibly accounted for by a net decrease in the breakdown of liver glycogen.

A Simple Soil Perfusion Apparatus 1

1956 ◽  
Vol 48 (3) ◽  
pp. 138-139 ◽  
Author(s):  
P. J. Dubash
Keyword(s):  
Perfusion Apparatus

A Perfusion Apparatus

1948 ◽  
Vol 27 (2) ◽  
pp. 220-221
Author(s):  
James M. Stewart ◽  
Robert E. Moyers
Keyword(s):  
Perfusion Apparatus

scholarly journals A COMPARATIVE STUDY OF CELSIOR SOLUTION AND UW SOLUTION ON 12-HR PRESERVATION OF CANINE HEARTS USING A NEW PORTABLE HYPOTHERMIC PERFUSION APPARATUS.

2000 ◽  
Vol 69 (Supplement) ◽  
pp. S201
Author(s):  
Masahiro Aizaki ◽  
Izumi Takeyoshi ◽  
Jun Mohara ◽  
Kiyohiro Oshima ◽  
Hirohumi Tsutsumi ◽  
...  
Keyword(s):  
Comparative Study ◽  
Uw Solution ◽  
Hypothermic Perfusion ◽  
Perfusion Apparatus

Behavior of zoospores of Phytophthora megasperma var. sojae and P. drechsleri in soil

1972 ◽  
Vol 50 (11) ◽  
pp. 2125-2130 ◽  
Author(s):  
R. S. Mehrotra
Keyword(s):  
Fluorescence Microscope ◽  
Natural Soil ◽  
Moderate Degree ◽  
Percentage Germination ◽  
Phytophthora Megasperma ◽  
Potential Capacity ◽  
Perfusion Apparatus ◽  
Phytophthora Drechsleri ◽  
Germ Tubes ◽  
Modified Soil

Experiments done with the modified soil perfusion apparatus indicate the potential capacity of the zoospores and cysts of Phytophthora drechsleri and P. megasperma var. sojae as inoculum units in soil. The results indicate that although zoospores/cysts do not retain infectivity for months, those of P. drechsleri do not lose it very rapidly. Experiments done to find out the period of motility of zoospores have shown that some zoospores of P. drechsleri and P. megasperma var. sojae remained motile for up to 30 and 24 h respectively. Saprophytic behavior of the two species of Phytophthora has been studied with the help of a fluorescence microscope and using a fluorescent dye. Cysts of P. drechsleri and P. megasperma var. sojae germinate to a moderate degree in natural non-amended soil. Germination ranged from 30 to 50% in the case of P. drechsleri and 15 to 25% in P. megasperma var. sojae. Amending the soil with 0.4% glucose, 0.4% asparagine increased the percentage germination of cysts in natural soil. Germ tubes of a small percentage of cysts in the two species terminate in miniature sporangia-like structures.

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