Category Archives: Physics & Mathematics

Radiation Field Preference for Radiographic Anatomical Markers by Radiographers in a University Teaching Hospital in Nigeria

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Author(s) :Thomas Adejoh, Sobechukwu Warric Iwene Onwuzu, Flavious Bobuin Nkubli, Nwamaka Ikegwuonu ABSTRACT Objective: The work aims to determine the radiographers’ preference between primary and secondary radiation fields for imprinting anatomical markers on radiographs. Methodology: Processed radiographs from the darkroom with … Continue reading

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Solvability of the Economic Input-Output Equation by Time Irreversibility

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Author:Shinji Miura ABSTRACT This paper reinterprets the economic input-output equation as a description of a realized situation without considering decision making. This paper uses the equation that the self-sufficiency rate is added to the Leontief type, and discusses its solvability. … Continue reading

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Partial Frequencies and Chladni’s Law in Church Bells

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Author(s) :William A. Hibbert, David B. Sharp, Shahram Taherzadeh, Robert Perrin   The rim partials of a church bell (those with an antinode at the soundbow) generate the strike pitch or perceived note of the bell. The spacing in frequency of the higher rim … Continue reading

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Does Life Need Water or Can it be Generated by Other Fluids?

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Author: Piero Chiarelli Why the physics cannot coherently explain the biology and life and the spontaneous emergence of order? The missing bridge between the physics and life disciplines constitutes one of the greatest problems of nowadays science. The situation is similar … Continue reading

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Black Holes Are Only Half of Their Previously Predicted Size

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First discovered in 1971, Black Holes, as predicted by Einstein’s general relativity are regions in the space-time where the gravitation field is so intense that even light cannot escape it. The theory of general relativity predicts that a sufficiently compact mass will deform space-time … Continue reading

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