National Repository of Grey Literature 32 records found  previous11 - 20nextend  jump to record: Search took 0.01 seconds. 
An Introduction to relativistic magnetohydrodynamics. II. Case of stationary electro-vacuum fields around black holes
Karas, Vladimír
The lecture on electrodynamical effects near black holes. The author summarize the basic equations of relativistic electrodynamics in terms of spin-coefficien formalism.
Simulation of electron trajectories in thin foils and electromagnetic fields of STEM
Novotný, Peter ; Konvalina, Ivo ; Mika, Filip ; Müllerová, Ilona
Knowledge of angular and energy distribution of Trnsmitted Electrons (TE) is very important for the unerstading of image formation in Scanning Transmission Electron Microscopy (STEM).
Measurement of electrical and mechanical oscillations of yeast cells membrane in acoustic frequency range
Jelínek, František ; Pokorný, Jiří ; Vaniš, Jan ; Hašek, Jiří ; Šimša, Jan
The paper describes the measurement of electric activity of yeast cells at frequencies around 1 kHz and of mechanical vibrations of cell membrane. Synchronized and non-synchronized tubulin mutants of yeast cells were measured. The paper includes a description of the laboratory equipment with a platinum wire point sensor and a spectrum analyzer. Obtained results are in good agreement with AFM findings.
Experimental investigation of electromagnetic activity of living cells at millimeter waves
Jelínek, František ; Pokorný, Jiří ; Šaroch, Jaroslav
The direct detection of electric oscillations in biological cells can deliver strong evidence for Fröhlich's theory of coherent excitation in biological systems. A laboratory equipment fot the measurement of mm-waves interaction with yest cells is described.
Abstract Book URSI International Symposium Endogenous Physical Fields in Biology
Pokorný, Jiří
Book of Abstracts contains 65 abstracts of papers whose majority was presented at the symposium "Endogenous Physical Field in Biology" whose program was focused mainly on: a/ Generation of the endogenous electromagnetic filed by cellular and subcellular protein structures /e.g.microtubules/, b/ Biophysical problems of interaction of biological systems with exogenous electromagnetic fields. Some new methods used in photodynamic and hyperthermic therapy of malignant tumors are described too.
Microtubules in yeast cells - source of electromagnetic activity in the M phase of the cell cycle
Pokorný, Jiří ; Hašek, Jiří ; Jelínek, František
Electromagnetic activity was measured around cells of cold sensitivite tubulin mutants of Saccharomyces cerevisiae which displayed microtubules. Electromagnetic activity in the frequency range 8-9MHz coincides with evolution of the microtubular structures.
Experimental investigation of electromagnetic activity of living cells at millimeter waves
Jelínek, František ; Pokorný, Jiří ; Šaroch, Jaroslav
The direct detection of electric oscillations in biological cells can deliver strong evidence for Fröhlich's theory of coherent excitation in biological systems. Some experimental observations of interaction of electromagnetic fields with living cells at mm waves published in literature are shortly reviewed. A laboratory equipment for the measurement of mm-waves interaction with yeast cells is described.
Abstract Book URSI International Symposium Electromagnetic Aspects of Selforganization in Biology
Pokorný, Jiří
Abstracts of papers presented in the symposium "Electromagnetic Aspects of Selforganization in Biology", July 9-12, 2000, Prague, the Czech Rewpublic.
Electromagnetic field around yeast cells
Pokorný, Jiří ; Jelínek, František ; Šaroch, Jaroslav ; Hašek, Jiří ; Palán, B.
Electromagnetic field around synchronized cells of tubulin mutant tub2-401 of Saccharomyces cerevisiae was measured in the M phase of the cell cycle in the frequency range of 8-9 MHz. The measured electromagnetic activity is compared with the evolution of the mitotic spindle. The peaks of the electromagnetic activity seems to coincide with formation of the mitotic spindle, with binding of chromatids to kinetochore microtubules, with anaphase A, and with anaphase B.

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