scholarly journals Investigations dealing with the phenomena of “clot” formations. Part IV.—The diphasic erosive action of salts on the cholate gel

1916 ◽  
Vol 89 (617) ◽  
pp. 361-372 ◽  
Keyword(s):  
Sodium Chloride ◽  
The Other ◽  
Salt Solutions ◽  
Antagonistic Action ◽  
Sodium Potassium ◽  
Calcium Salts ◽  
Sodium Salts ◽  
Marine Plants ◽  
Magnesium Salts ◽  
The One

In the last communication† of this series, attention was called to the fact that the cholate gel is eroded when immersed in solutions of sodium chloride and other chlorides, and that this erosive action can be “antagonised” by addition to the chloride solutions of relatively small amounts of calcium chloride. The analogy between this action and the biological “antagonistic” action of calcium towards sodium and other salts was also commented upon and illustrated by examples from the researches of Loeb, Osterhout and other investigators. In addition, however, to the antagonism between calcium salts on the one hand and sodium, potassium and magnesium salts on the other hand, Loeb has shown in the case of Fundulus that there is evidence of antagonism between potassium and sodium salts, that is to say that the toxic action of one salt can be rendered more or less innocuous by the addition of the other. Osterhout has shown that certain marine plants will retain their vital activities for a longer period in a solution which contains, in addition to sodium and calcium salts, also potassium and magnesium salts, and has formulated the conception of “balanced” salt solutions as necessities for the maintenance of the maximal activities of plants.

scholarly journals RIGOR MORTIS AND THE INFLUENCE OF CALCIUM AND MAGNESIUM SALTS UPON ITS DEVELOPMENT

1908 ◽  
Vol 10 (1) ◽  
pp. 45-77 ◽  
Author(s):  
S. J. Meltzer ◽  
John Auer
Keyword(s):  
The Other ◽  
Original Position ◽  
Rigor Mortis ◽  
Calcium Salts ◽  
Intravenous Injections ◽  
Magnesium Salts ◽  
Calcium And Magnesium ◽  
Ion Effects ◽  
The One ◽  
The Right

Calcium salts hasten and magnesium salts retard the development of rigor mortis, that is, when these salts are administered subcutaneously or intravenously. When injected intra-arterially, concentrated solutions of both kinds of salts cause nearly an immediate onset of a strong stiffness of the muscles which is apparently a contraction, brought on by a stimulation caused by these salts and due to osmosis. This contraction, if strong, passes over without a relaxation into a real rigor. This form of rigor may be classed as work-rigor (Arbeitsstarre). In animals, at least in frogs, with intact cords, the early contraction and the following rigor are stronger than in animals with destroyed cord. If M/8 solutions—nearly equimolecular to "physiological" solutions of sodium chloride—are used, even when injected intra-arterially, calcium salts hasten and magnesium salts retard the onset of rigor. The hastening and retardation in this case as well as in the cases of subcutaneous and intravenous injections, are ion effects and essentially due to the cations, calcium and magnesium. In the rigor hastened by calcium the effects of the extensor muscles mostly prevail; in the rigor following magnesium injection, on the other hand, either the flexor muscles prevail or the muscles become stiff in the original position of the animal at death. There seems to be no difference in the degree of stiffness in the final rigor, only the onset and development of the rigor is hastened in the case of the one salt and retarded in the other. Calcium hastens also the development of heat rigor. No positive facts were obtained with regard to the effect of magnesium upon heat vigor. Calcium also hastens and magnesium retards the onset of rigor in the left ventricle of the heart. No definite data were gathered with regard to the effects of these salts upon the right ventricle.

THE RELATIONSHIP OF THE SODIUM, POTASSIUM, AND CHLORIDE CONCENTRATION OF THE FEEDING TO THE WEIGHT GAIN OF PREMATURE INFANTS

PEDIATRICS ◽  
1962 ◽  
Vol 30 (6) ◽  
pp. 909-916
Author(s):  
Herbert I. Goldman ◽  
Samuel Karelitz ◽  
Hedda Acs ◽  
Eli Seifter
Keyword(s):  
Weight Gain ◽  
Sodium Chloride ◽  
Human Milk ◽  
Premature Infants ◽  
Chloride Concentration ◽  
The Other ◽  
Milk Formula ◽  
Sodium Potassium ◽  
Relationship Of ◽  
The Relationship

One hundred four healthy premature infants, of birth weight 1,000 to 1,800 gm, were fed one of five feedings: (1) human milk; (2) human milk plus 13 meq/l of sodium chloride; (3) human milk plus 13 meq/l of sodium chloride and 18 meq/l of potassium chloride; (4) a half-skimmed cows milk formula; and (5) a partially-skimmed vegetable oil, cows milk formula. The infants fed any of the three human milk formulas gained weight at a slower rate than the infants fed either of the two cows milk formulas. Infants whose diets were changed from unmodified human milk to the half-skimmed cows milk gained large amounts of weight, and at times were visibly edematous. Infants whose diets were changed from the human milks with added sodium chloride, to the half-skimmed cows milk, gained lesser amounts of weight and did not become edematous. The infants fed the two cows milk diets gained similar amounts of weight, although one diet provided 6.5 gm/kg/day, the other 3.1 gm/kg/day of protein.

GERMINATION OF ALFALFA VARIETIES IN SOLUTIONS OF VARYING OSMOTIC PRESSURE AND RELATIONSHIP TO WINTER HARDINESS

1959 ◽  
Vol 39 (3) ◽  
pp. 384-394 ◽  
Author(s):  
D. H. Heinrichs
Keyword(s):  
Sodium Chloride ◽  
Osmotic Pressure ◽  
Laboratory Experiments ◽  
Reliable Method ◽  
Winter Hardiness ◽  
The Other ◽  
General Tendency ◽  
Salt Solutions ◽  
Sodium Chloride Solutions ◽  
Alfalfa Varieties

Two laboratory experiments were conducted to evaluate the reliability of amount of germination in solutions of varying osmotic pressure, as a means of separating alfalfa varieties into winter-hardiness classes. In one test 23 varieties or strains were studied, and in the other 36. It was found that significant differences exist between certain alfalfa varieties in their ability to germinate in sucrose or sodium chloride solutions of 3, 6, and 9 atmospheres. There is a general tendency for non-hardy varieties to germinate more rapidly and more completely than hardy ones but there are many exceptions to this trend. Germination in solutions of 6 atmospheres osmotic pressure at 5 days gave the best separation of varieties on the basis of their ability to germinate. Germination was generally better in solutions of sucrose at 6 atmospheres osmotic pressure than in solutions of sodium chloride of the same osmotic pressure but several varieties germinated equally well in either solution. The results indicate that germinating alfalfa in sugar or salt solutions is not a reliable method for differentiating alfalfa varieties into winter hardiness classes.

Sodium chloride supplementation of high-grain diets for fattening Merino sheep

1957 ◽  
Vol 8 (1) ◽  
pp. 83 ◽  
Author(s):  
GL McClymont ◽  
KN Wynne ◽  
PK Briggs ◽  
MC Franklin
Keyword(s):  
Sodium Chloride ◽  
Sodium Intake ◽  
The Other ◽  
Dietary Sodium ◽  
Limiting Factor ◽  
Food Utilization ◽  
Merino Sheep ◽  
Low Sodium ◽  
Cent Sodium ◽  
The One

In an experiment lasting 60 days the effect of adding sodium chloride to five types of diet was studied in young Merino wethers. The diets used were 100 per cent. oat grain, and 50 : 50 as well as 75 : 25 mixtures of oat grain with lucerne chaff on the one hand, and with wheaten chaff on the other. The addition of 0.25 per cent. sodium chloride to these diets resulted in increased food consumption and improved efficiency of food utilization, with significant increases of 19-58 per cent. in body-weight gains. The unsupplemented diets contained 0.009-0.062 per cent. sodium and 0.05-0.42 per cent. chlorine. There were indications that the lack of sodium was the limiting factor in these diets, and that the sodium requirement of these sheep was greater than 0.06 per cent. of the diet, or 0.88 g per day. Dietary sodium intake did not affect serum-sodium levels, except those of sheep fed on the 50 : 50 mixture of oats and lucerne chaff in which they were significantly higher. Serum-potassium levels were slightly, but significantly, higher in sheep fed on the low-sodium diets. In a second experiment the two groups which had received the 75 : 25 mixture of oat grain and wheaten chaff were fed on the mixture for a further 29 days, but the group which had not received sodium chloride was given 0.37 per cent. sodium bicarbonate. The response was similar to that of the group which received sodium chloride.

scholarly journals Effects of Two Salts Compounds on Mycelial Growth, Sporulation, and Spore Germination of Six Isolates ofBotrytis cinereain the Western North of Algeria

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Boualem Boumaaza ◽  
Mohamed Benkhelifa ◽  
Moulay Belkhoudja
Keyword(s):  
Sodium Chloride ◽  
Calcium Chloride ◽  
Mycelial Growth ◽  
Liquid Culture ◽  
Germination Percentage ◽  
Germination Capacity ◽  
Calcium Salts ◽  
Sodium Salts ◽  
High Tunnels ◽  
Three Stages

Six isolates ofBotrytis cinereawere isolated from leaves and stems of different tomato varieties taken from four areas in the northwest of Algeria where tomato is mostly grown in greenhouses and high tunnels. The purpose of this research was to determine the effect of two salts, NaCl and CaCl2, on three stages ofBotrytis cinerea’slife cycle. All isolates tested were stimulated in 50 to 150 ppm; NaCl was the most effective treatment to increase mycelial growth at two tested concentrations. However, at 300 ppm concentration, CaCl2completely inhibited the growth of mycelium; they reach 34.78% for the isolate TR46 and 26.72% for isolate F27. The sodium and calcium salts stimulated conidia production in liquid culture. We noticed that the effect of calcium chloride on sporulation was average while sodium chloride. In the medium containing 50 ppm, calcium chloride and sodium chloride increased the germination capacity of most isolates compared with the control. Other calcium salts, at 100 or 300 ppm, decreased the germination percentage of the conidia. With the exception of sodium salts, the inhibitions of germination reduce at 150 or 300 compared with the control. Conidial germination was slightly inhibited by sodium chloride only when the concentration was over 300 ppm.

Large enhancement of canine taste responses to amino acids by salts

1993 ◽  
Vol 264 (6) ◽  
pp. R1071-R1076 ◽  
Author(s):  
T. Ugawa ◽  
K. Kurihara
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Chorda Tympani ◽  
Chorda Tympani Nerve ◽  
Sodium Potassium ◽  
Calcium Salts ◽  
Receptor Sites ◽  
Large Enhancement ◽  
Magnesium Salts ◽  
High Concentrations

The effects of salts on the canine taste responses to amino acids were examined by recording the activity of the chorda tympani nerve. 1) The tonic responses to most amino acids examined were significantly enhanced by the presence of various salts. 2) The degree of the enhancement varied with the species of amino acid and salt. The responses to most amino acids were enhanced by sodium, potassium, and calcium salts, but not enhanced by magnesium salts. The response to methionine, for example, was enhanced by NaCl, but not by Na phosphate of equimolar Na+. 3) The responses to glycine and alanine were suppressed by high concentrations of NaCl. 4) The presence of salts (NaCl and CaCl2) enhanced the responses to amino acids without affecting the thresholds for the amino acids, suggesting that the presence of the salts did not change the affinity of amino acids to the receptor sites. 5) The enhancing effects of salts on the responses to amino acids could not be explained in terms of permeability of cation and anion of salts. It was speculated that the binding of cation and anion of salts on the receptor membranes induces exposure of the receptor sites for amino acids available for binding of amino acids.

scholarly journals An Analysis of Hamster Afferent Taste Nerve Response Functions

1973 ◽  
Vol 61 (5) ◽  
pp. 588-618 ◽  
Author(s):  
Marion Frank
Keyword(s):  
Sodium Chloride ◽  
Hydrochloric Acid ◽  
Neural Response ◽  
The Other ◽  
Response Functions ◽  
Chorda Tympani ◽  
Sodium Salts ◽  
Second Best ◽  
C Fibers ◽  
Nerve Response

Sensitivities to moderately intense stimuli representing four taste qualities to man were determined for 79 hamster chorda tympani fibers. Some fibers were very sensitive to sucrose, sodium chloride, or hydrochloric acid, but none were very sensitive to quinine. These sensitivities were not randomly distributed among fibers: the sucrose sensitivity was separated from and negatively correlated with the other sensitivities which were associated and positively correlated with each other. Moreover, there were a limited number of sensitivity patterns: (a) fibers responding best to sucrose responded second-best to salt, less to acid, not to quinine; (b) fibers responding best to salt either responded second-best to sucrose and not to acid or quinine; or second-best to acid, less to quinine, and not to sucrose; and (c) fibers responding best to acid responded second-best to salt, more to quinine, and less to sucrose than other fibers. Therefore, if four stimuli of different taste qualities are ordered from acceptable to unacceptable, neural response functions of most hamster chorda tympani taste fibers peak at one point. Sensitivities to nine other moderately intense stimuli which vary in quality to man were also determined for 46–49 of the fibers. Sensitivities to sweet stimuli were always associated with each other and separated from sensitivities to nonsweet stimuli. Sensitivities to nonsweet stimuli were all associated with each other; however, the strongest correlations were between sensitivities to stimuli of like quality, e.g., the three acids or the two sodium salts.

scholarly journals Re‐evaluation of sodium, potassium and calcium salts of fatty acids (E 470a) and magnesium salts of fatty acids (E 470b) as food additives

EFSA Journal ◽  
2018 ◽  
Vol 16 (3) ◽  
Author(s):  
◽  
Maged Younes ◽  
Peter Aggett ◽  
Fernando Aguilar ◽  
Riccardo Crebelli ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Food Additives ◽  
Sodium Potassium ◽  
Calcium Salts ◽  
Magnesium Salts

Note on Selection of Coordinate Systems for Geodynamics

1975 ◽  
Vol 26 ◽  
pp. 395-407
Author(s):  
S. Henriksen
Keyword(s):  
Sea Level ◽  
The Other ◽  
Coordinate Systems ◽  
Mean Sea Level ◽  
The Earth ◽  
The One ◽  
Static Systems ◽  
Selection Of

The first question to be answered, in seeking coordinate systems for geodynamics, is: what is geodynamics? The answer is, of course, that geodynamics is that part of geophysics which is concerned with movements of the Earth, as opposed to geostatics which is the physics of the stationary Earth. But as far as we know, there is no stationary Earth – epur sic monere. So geodynamics is actually coextensive with geophysics, and coordinate systems suitable for the one should be suitable for the other. At the present time, there are not many coordinate systems, if any, that can be identified with a static Earth. Certainly the only coordinate of aeronomic (atmospheric) interest is the height, and this is usually either as geodynamic height or as pressure. In oceanology, the most important coordinate is depth, and this, like heights in the atmosphere, is expressed as metric depth from mean sea level, as geodynamic depth, or as pressure. Only for the earth do we find “static” systems in use, ana even here there is real question as to whether the systems are dynamic or static. So it would seem that our answer to the question, of what kind, of coordinate systems are we seeking, must be that we are looking for the same systems as are used in geophysics, and these systems are dynamic in nature already – that is, their definition involvestime.

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