Search results
New Frequency-Modulation Method for Measuring Ultrasonic Absorption in Liquids - Nature
Nature· 22 hours agoIN this method the frequency of a radio-frequency oscillator is modulated by a sinusoidal audio-frequency voltage, and the resultant radio-frequency voltage is applied to ...
Method for Measuring Vapour Pressures of Liquids1 - Nature
Nature· 19 hours agoApparatus for realising the proposed method is represented in the accompanying diagram. Two Woolff's bottles, each having a vertical glass tube fitted airtight into one of ...
A Method of Testing the Antimalarial Properties of Compounds in vitro - Nature
Nature· 19 hours agoTHE rate of hæmolysis produced in vitro by the hæmolytic substance isolated from normal blood plasma1 has been found to be decreased on addition of antimalarial drugs in low concentration (1 ...
Adopting a disciplined and rational framework for long-term investment
The Herald· 32 minutes agoEvidence-based investing is an investment approach that relies on rigorous and empirical research like modern portfolio theory, the efficient market hypothesis, and factor-based investing. The ...
Use of Acid-Base Indicator for Quantitative Paper Chromatography of Sugars - Nature
Nature· 20 hours agoQUANTITATIVE methods of paper chromatography tend to be unsatisfactory largely because of the very small amounts of substance separated. In the case of sugars, the spots are ...
Methods of Surveying - Nature
Nature· 20 hours agoIt contains just what is necessary and little that is superfluous; each step is so clearly indicated, and the little prac tical hints given are so apt, that a novice could go ostraight on with ...
A New Method of Light Microscopy - Nature
Nature· 21 hours agoWITHOUT criticizing the vector treatment of amplitude and phase-contrast microscopy kindly given by Dr. Barer in his comment on my letter1, I would like to make the following comments: (1) Using ...
A New Method in Animal Psychology - Nature
Nature· 19 hours agoThe method which Prof. Pawlow introduced consists in studying the modifications of the salivary reflex under various mental conditions. By a simple operation a salivary fistula ...
Methods and Aims of Anthropology - Nature
Nature· 22 hours agoPROF. KARL PEARSON'S presidential address to the Anthropological Section of the British Association at the recent Cardiff meeting sounded a note of challenge which it is not usual to hear from ...
Lability of Fibrinolysin - Nature
Nature· 21 hours agoFEARNLEY'S method for estimating fibrinolytic activity of normal blood1 is based on the fact that the clot formed by adding thrombin to blood diluted 1 : 10 with phosphate ...