Determination of manganese in serum: Normal value and physiological variations

1983 ◽  
Vol 6 (S2) ◽  
pp. 90-90 ◽  
Author(s):  
A. Favier ◽  
D. Ruffieux
2016 ◽  
Vol 2 (2) ◽  
pp. 142-163 ◽  
Author(s):  
Weihuan Zhou ◽  
Andrew Percival

This article provides a detailed analysis of the World Trade Organisation (“wto”) panel report on the eu—Biodiesel dispute which represents the latest development of the wto jurisprudence on anti-dumping. The panel’s decision has significant implications for the rising use of Particular Market Situation (“pms”) by traditional users of anti-dumping (such as Australia) against economies like China in anti-dumping investigations. The panel correctly established that a finding of pms does not provide a sufficient ground for the use of surrogate costs in the determination of constructed normal value (“cnv”) and that the use of that methodology would result in the imposition of anti-dumping duties in excess of dumping margins that should have been established consistently with the wto Anti-Dumping Agreement, that is, by using actual costs recorded by exporters under investigation. It is argued that both Australia’s anti-dumping laws which essentially authorise the use of surrogate costs in the construction of normal value solely based on a finding of pms and Australia’s use of that methodology in practice are contrary to wto rules. The panel’s decision, therefore, is a positive step toward the resolution of the issues related to pms by imposing constraints on the use of a protectionist methodology in determining cnv so as to prevent unjustified inflation of dumping margins and anti-dumping duties.


1975 ◽  
Vol 21 (8) ◽  
pp. 1077-1087 ◽  
Author(s):  
Gérard Siest ◽  
Françoise Schiele ◽  
Marie-Madeleine Galteau ◽  
Edwige Panek ◽  
Josiane Steinmetz ◽  
...  

Abstract The determination of frequency value (percentile limits) and the classification of the different variation factors allow us to define more and more homogeneous subpopulations as we use these factors for sorting. Using as our study population those persons coming to the Centre for Preventive Medicine, we were able to: (a) Describe and measure the significance and importance of physiological variations or of variations attributed to age—the latter largely related only to excessive weight, which it seems to us is often the case. (b) Establish a classification for variation factors; the recapitulatory table should be useful to clinical chemists in helping physicians interpret a laboratory test result that falls within the zone of incertitude. (c) Suggest a preliminary group of reference values for healthy subjects, to be used in interpreting a laboratory test in this way.


1975 ◽  
Vol 42 (5) ◽  
pp. 503-507 ◽  
Author(s):  
Karl Guldberg Krogness

✓ Two new proportional methods for determination of the normal or abnormal position of the cerebral aqueduct are described. The position of the iter is expressed by the quotients and , when d-aq represents the distance between the upper posterior surface of the dorsum sellae and the dorsal center of the air-filled aqueduct. Ts = aq is the distance from the tuberculum sellae to the same point, and Tw is Twining's line. The normal value of the dorsum to aqueduct ratio was 0.32 ± 0.02 standard deviation (SD) and of the tuberculum to aqueduct ratio 0.44 ± 0.03 SD. Both proportional methods are independent of skull dimensions. These are compared to another proportional method described in Part 1 of this report.


2011 ◽  
Vol 132 (2) ◽  
pp. 197-202 ◽  
Author(s):  
Ryuichi Kobayashi ◽  
Soichiro Miyazaki ◽  
Masayuki Karaki ◽  
Hirotaka Hara ◽  
Astushi Kikuchi ◽  
...  

2010 ◽  
Vol 56 (4) ◽  
pp. 39-43
Author(s):  
E A Troshina ◽  
D G Bel'tsevich ◽  
M Iu Iukina

Biochemical diagnosis of pheochromocytoma is based on the measurement of altered levels of normetanephrine and metanephrine in plasma or 24-hour urine samples. Plasma normetanephrine and metanephrine levels four times the upper limit of the normal value or metanephrine and normetanephrine excretion in urine above 700 and 1500 mcg/24 hours respectively makes further testing unnecessary and subsequent examination must be focused on the determination of tumour localization. In patients presenting with the above parameters elevated within the "grey zone", effect of medicinal products needs to be excluded and the diagnosis confirmed in the clonidine test or by the measurement of chromogranin A level.


1981 ◽  
Vol 64 (5) ◽  
pp. 1145-1148
Author(s):  
Ramesh T Sane ◽  
Sudhir S Kamat ◽  
Amulya D Pandit

Abstract A method is described for the determination of ethanol in the presence of methanol without pre-separation. The sample is oxidized to give acetaldehyde and formaldehyde. 2-Thiobarbituric acid reagent is added and selectively forms a pink adduct with acetaldehyde, but not with formaldehyde. The method is sensitive, obeys Beer’s law in the concentration range 18–80 μg/mL, and has an advantage over other methods because it does not detect any “apparent normal value” of alcohol in blood.


The plant is a multicellular organism, and hence necessity arises for inter­communication and inter-action between more or less distant organs. I have shown elsewhere (1) that this is accomplished in the plant, as in the animal, in two different ways, by translocation of matter and by transmission of motion. The first is secured by the slow movement of fluids carrying chemical substances in solution, such as occurs in the circulation of sap. The second is brought about by the rapid propagation of protoplasmic excitation, such as the nervous impulse in the animal. The evolution of a nervous system for the transmission of excitation in the living organism is a matter of much theoretical importance. It is therefore of interest to investigate the trans­mission of excitation in the undifferentiated protoplasm of the plant. In the course of my investigations on nervous reactions in plants during the last twenty years (2, 3, 4, 5) many important facts have been discovered which throw light on the more complex phenomena in the animal. A suitable subject for investigation is Mimosa pudica , in which the pulvinus acts as a motile effector, the excitation being conducted along definite channels. It is unfortunate that in most investigations on the nature of the transmission of excitation in plants, hydro-mechanical disturbance was involved by the crude and drastic methods of stimulation employed, which led to erroneous conclusions. For the determination of the true character of the transmission, it is essential that the stimulus should be such as to produce no mechanical disturbance. The important characteristics of the impulse, moreover, can only be determined by accurate measurement of its normal velocity and the changes induced in it under physiological variations. It is therefore necessary to obtain, by means of an automatic recorder, reliable measurements of the period of transmission in the conducting tissue, as well as the latent period of the effector. These requirements are fulfilled by my Resonant Recorder (2), which enables time-intervals as short as 0·005 sec. to be determined with very great precision (3).


1988 ◽  
Vol 34 (11) ◽  
pp. 2271-2274 ◽  
Author(s):  
F Mashige ◽  
N Tanaka ◽  
T Murakami ◽  
H Shimosaka ◽  
S Kamei ◽  
...  

Abstract In one widely used enzymatic method for urinary polyamines, the total concentrations of four polyamines--putrescine, spermidine, spermine, and cadaverine--are determined. We report here a simple enzymatic method for measuring the total concentrations of urinary polyamines except cadaverine. The coefficients of variation (CV) for within-run measurements by this method were 4.3% (means = 17.2 mumol/L) and 1.5% (means = 66.5 mumol/L), between-run CVs were 4.8% (means = 16.8 mumol/L) and 1.8% (means = 67.5 mumol/L). The central 95% normal reference interval was 12.3-29.1 mumol/g creatinine for men and 14.1-36.8 mumol/g creatinine for women. In some cases, physiological variations in urinary polyamine excretion were large, mainly because of variations in cadaverine excretion, even in health. Pathological changes in polyamine production in the body may therefore be more easily shown by the excretion of total polyamines excluding cadaverine than by that including cadaverine.


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