scholarly journals THE INFLUENCE OF TEMPERATURE ON HEMOLYSIS IN HYPOTONIC SOLUTIONS

1909 ◽  
Vol 11 (4) ◽  
pp. 593-603 ◽  
Author(s):  
Paul A. Lewis
Keyword(s):  
Sodium Chloride ◽  
Osmotic Pressure ◽  
Opposite Direction ◽  
Cane Sugar ◽  
Original Method ◽  
Influential Factors ◽  
Permeable Membrane ◽  
Influence Of Temperature ◽  
Influence Of Temperature On ◽  
The Common

Decreasing the temperature from 37° C. to 5° C. perceptibly and regularly increases hemolysis in hypotonic sodium chloride and cane sugar solutions, when the erythrocytes of a number of the common mammals are considered. The measurements were carried out with Smith's modification of the method of Hamburger. If following the original method of Hamburger one relies on the point of beginning hemolysis as an index of corpuscle resistance, the facts are not brought out clearly. The effect is in the opposite direction from that which would prevail if the laws governing change of osmotic pressure with change of temperature were the influential factors. The results possibly depend on some change in the permeability or consistence of the erythrocytic protoplasm considered as a semi-permeable membrane.

scholarly journals On the osmotic pressures of some concentrated aqueous solutions

1906 ◽  
Vol 78 (521) ◽  
pp. 68-68
Keyword(s):  
Aqueous Solutions ◽  
Osmotic Pressure ◽  
Turning Point ◽  
Cane Sugar ◽  
Permeable Membrane ◽  
Concentrated Aqueous Solutions ◽  
Point Pressure ◽  
Exact Point ◽  
Rate Of Movement

This communication gives an account of measurements of osmotic pressures of aqueous solutions of cane sugar, dextrose, galactose, and mannite. The method adopted is that briefly outlined by us in Vol. 73, ‘Roy. Soc. Proc.’ A gradually increasing pressure is placed upon the solution (which is separated from the solvent by a semi-permeable membrane) until the solvent, which at first flows into the solution, reverses its direction and is squeezed out. The pressure, when there is no movement of the solvent, is considered to be the osmotic pressure. Owing to the difficulty of determining the exact point at which no movement takes place and for other reasons, the experi­ments are carried out so as to enable an observation to be made of the rate of movement of the solvent, both when the pressure on the solution is just below and when just above the turning point pressure. The osmotic pressure is deduced from these rates. The range of pressures covered by the experiments is from 12 to 135 atmospheres.

THE INFLUENCE OF TEMPERATURE ON THE RATE OF NATURAL PENETRATION OF ELECTROLYTES INTO WOOD

1934 ◽  
Vol 10 (2) ◽  
pp. 180-189 ◽  
Author(s):  
O. Maass
Keyword(s):  
Sodium Chloride ◽  
Hydrochloric Acid ◽  
Sodium Hydroxide ◽  
Black Spruce ◽  
Longitudinal Direction ◽  
Lateral Direction ◽  
Influence Of Temperature ◽  
Influence Of Temperature On ◽  
Different Shapes

The rates of diffusion of sodium hydroxide, sodium chloride and hydrochloric acid into chips of black spruce heartwood impregnated with water were measured for different shapes of chip at 20, 50, and 75 °C. In the longitudinal direction of the wood, hydrochloric acid diffuses the most rapidly and sodium hydroxide and sodium chloride at nearly the same rates. In the lateral direction sodium hydroxide diffuses the most rapidly, owing to its action on the wood. Concentration of electrolyte is practically without influence on the time to half-value for sodium hydroxide and hydrochloric acid. The density of the wood does not affect the rate of diffusion of sodium hydroxide.The rate of diffusion of water into air dry chips was measured at 20 and 50 °C.

The effect of temperature on high-resolution TEM image contrast

1995 ◽  
Vol 53 ◽  
pp. 640-641
Author(s):  
T. Geipel ◽  
W. Mader ◽  
P. Pirouz
Keyword(s):  
Form Factor ◽  
Inelastic Scattering ◽  
Accurate Method ◽  
Waller Factor ◽  
Effect Of Temperature ◽  
Specimen Thickness ◽  
Influence Of Temperature ◽  
Debye Waller Factor ◽  
Influence Of Temperature On ◽  
Atomic Form Factor

Temperature affects both elastic and inelastic scattering of electrons in a crystal. The Debye-Waller factor, B, describes the influence of temperature on the elastic scattering of electrons, whereas the imaginary part of the (complex) atomic form factor, fc = fr + ifi, describes the influence of temperature on the inelastic scattering of electrons (i.e. absorption). In HRTEM simulations, two possible ways to include absorption are: (i) an approximate method in which absorption is described by a phenomenological constant, μ, i.e. fi; - μfr, with the real part of the atomic form factor, fr, obtained from Hartree-Fock calculations, (ii) a more accurate method in which the absorptive components, fi of the atomic form factor are explicitly calculated. In this contribution, the inclusion of both the Debye-Waller factor and absorption on HRTEM images of a (Oll)-oriented GaAs crystal are presented (using the EMS software.Fig. 1 shows the the amplitudes and phases of the dominant 111 beams as a function of the specimen thickness, t, for the cases when μ = 0 (i.e. no absorption, solid line) and μ = 0.1 (with absorption, dashed line).

The Influence of Temperature on Successful Reproductions of Burbot, Lota Lota (L.) Under Hatchery Conditions

2010 ◽  
Vol 25 (1) ◽  
pp. 93-105 ◽  
Author(s):  
Daniel Żarski ◽  
Dariusz Kucharczyk ◽  
Wojciech Sasinowski ◽  
Katarzyna Targońska ◽  
Andrzej Mamcarz
Keyword(s):  
Lota Lota ◽  
Influence Of Temperature ◽  
Influence Of Temperature On
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