Determination of the cutoff point of the absolute value of MGMTmRNA for predicting the therapeutic resistance to temozolomide in glioblastoma

2020 ◽  
Vol 64 (5) ◽  
Author(s):  
Satoshi Tanaka ◽  
Jiro Akimoto ◽  
Yoshitaka Narita
Keyword(s):  
Cutoff Point ◽  
Therapeutic Resistance ◽  
Absolute Value ◽  
The Absolute

scholarly journals I. Experiments, by the method of Lorentz, for the further determination of the absolute value of the British association unit of resistance, with an appendix on the determination of the pitch of a standard tuning-fork

1883 ◽  
Vol 34 (220-223) ◽  
pp. 438-439
Keyword(s):  
Tuning Fork ◽  
British Association ◽  
Cavendish Laboratory ◽  
Absolute Value ◽  
The Absolute ◽  
The Difference

The experiments described in the present paper were carried out during the spring and summer months of the present year, at the Cavendish Laboratory, and are divided into three distinct series. In the first and second series, the induction coils were situated nearly in the plane of the revolving disk, as in Lorentz’s original use of the method; the difference between the two series relating only to the speed of rotation, which was varied in the proportion of 10:16.

scholarly journals The significance of determination of the absolute value of gravity in geodesy

Tehnika ◽  
2021 ◽  
Vol 76 (1) ◽  
pp. 17-24
Author(s):  
Sofija Naod
Keyword(s):  
Theoretical Basis ◽  
Absolute Gravity ◽  
Reference Systems ◽  
Global Knowledge ◽  
Earth’S Gravity Field ◽  
Absolute Value ◽  
Reference Networks ◽  
The Absolute ◽  
Gravimetric System

The gravity is used to solve geodesy's primary tasks, such as determining geoid and defining the height and gravimetric reference networks of different scales, from national to global. Knowledge of gravity is of great importance for both metrology and geodetic metrology. In addition to the historical overview of absolute gravimeters, this paper presents the theoretical basis of the most commonly used method for determining the absolute value of gravity. The principle of operation of the absolute gravimeter FG5 and the importance of international comparison of absolute gravimeters are briefly presented. An overview of the gravimetric reference systems is given, emphasizing the establishment of the International Reference Gravimetric System. The previous works concerning the absolute determination of acceleration due to Earth's gravity field in Serbia are presented. Finally, the importance of determining the absolute value of gravity from the geodetic and metrological perspective is pointed out. Both national and international significance of determining absolute gravity in defining gravimetric reference systems and the importance of absolute gravity in monitoring global phenomena are emphasized.

NEW DETERMINATION OF THE ABSOLUTE VALUE OF THE RADIUM: URANIUM RATIO.1

1920 ◽  
Vol 42 (6) ◽  
pp. 1170-1177 ◽  
Author(s):  
S. C. Lind ◽  
L. D. Roberts
Keyword(s):  
Absolute Value ◽  
The Absolute

Determination of Chemical Composition in Zircon-Refractory Material by MLD Method

2017 ◽  
Vol 726 ◽  
pp. 434-439
Author(s):  
Wei Han ◽  
Yu Bing Liu ◽  
Jian Xing Ren ◽  
Juan Juan Lu
Keyword(s):  
Chemical Composition ◽  
Refractory Material ◽  
Standard Method ◽  
National Standard ◽  
Absolute Value ◽  
X Ray ◽  
Zircon Refractory ◽  
Counting Error ◽  
The Absolute

The contents of each element in the melting glass samples of zircon-refractory material were measured by X-ray fluorescence spectrometry. The samples were melted completely with uniform intensity. Then the incident ray absorption coefficient and the MLD coefficient of the solvents and samples were extracted by using the method of equivalent wavelength. Finally the chemical composition of zircon-refractory material was determined by MLD coefficient and normalization calculation method. The results are consistent with those obtained with the national standard method and the absolute value of error is less than 0.1%. The precision is comparative with the counting error of XRF analysis and the absolute value of the standard deviation is less than 0.05%, being much higher than national standard method. At the same time, this method is simple, easy to be operated.

The Absolute, Entirely Viscometric Determination of the Molecular Weight of high Polymers

1957 ◽  
Vol 30 (2) ◽  
pp. 470-486 ◽  
Author(s):  
K. Edelmann
Keyword(s):  
Molecular Weight ◽  
Average Molecular Weight ◽  
Absolute Value ◽  
Simple Measurement ◽  
The Absolute ◽  
Viscosity Determination ◽  
Numerical Knowledge ◽  
High Polymers

Abstract The utility of high polymers in all fields of application depends on the average molecular weight. In general, strength, elasticity and tear resistance under sudden stress increase with the molecular weight. On the contrary, processibility and solubility decrease with increasing molecular weight. The opposing requirements for quality and economy lead to the necessity of possessing as accurate a knowledge of the molecular weight as possible, to make certain that the molecular weight of a product is adequate for the requirements of a definite application. Normally, a simple measurement of viscosity will suffice as a test for the characterization of a definite product. The knowledge of the absolute value of the molecular weight is not required in the case where it is possible to arrange different samples in a correct series. However, in many cases a numerical knowledge of the molecular weight is desirable. In the case of the reactions of cellulose, e.g., it is often necessary to determine at what point decomposition occurs. Normally, this is not possible by means of a simple viscosity determination, since its standardization against absolute methods varies with the degree of substitution and the type of solvent. To this must be added, the causes for the occurrence of structural viscosity in solutions of linear macromolecules, which also make it necessary to determine the molecular weight for the evaluation of these high polymers.

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