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IN BETWEEN INTENSIVE AND EXTENSIVE

100%

Timko M.

Slovenské divadlo (Slovak Theatre)

2006

tom 54

nr 1

70-79

An author in his contribution observes that Arthur Miller's stagings were performed in Slovakia each time when a new author's text appeared, and subsequently was produced in the various Slovak professional theatres. Miller's play 'Po pade' (1964) ( After the Fall ) was performed in Slovakia as the European opening. For P. Haspra, a dramatic definition of the new American drama was convenient. A young theatrical critic and historian M. Timko is dealing in detail with two Haspra's rehearsals of the play 'Cena' (The Price). The impact of Haspra's first staging of Miller's 'Cena' (The Price) was very heuristic and inspirative in the Slovak theatrical art context, extending the scale of histrionic mouldable devices of all actors who participated in performing. When confronting the first staging of 'Cena' (the Price), the second one seemed as numb and deaf, incomplete, building on extensiveness, outerness, lacking own substance - the contents. The director in the second staging waived of analyticism, embedding for the extensive outerior devices.

Ultrasonic and Magnetic Study of Physiology Based Magnetic Fluid

45%

Józefczak A. , Skumiel A. , Łabowski M. , Timko M. , Gierczyk N.

2002

tom Vol. 23

193-199

The Effect of Sonication on Acoustic Properties of Biogenic Ferroparticle Suspension

38%

Józefczak A. , Hornowski T. , Król A. , Molčan M. , Leszczyński B. , Timko M.

Archives of Acoustics

2016

tom Vol. 41, No. 1

161--168

Superparamagnetic iron oxide nanoparticles (SPION) synthesised chemically usually need the modification of the particle surface. Other natural sources of magnetic particles are various magnetotactic bacteria. Magnetosomes isolated from magnetotactic bacteria are organelles consisting of magnetite (Fe3O4) or greigite (Fe3S4) crystals enclosed by a biological membrane. Magnetotactic bacteria produce their magnetic particles in chains. The process of isolation of magnetosome chains from the body of bacteria consists of a series of cycles of centrifugation and magnetic decantation. Using a high-energy ultrasound it is possible to break the magnetosome chains into individual nanoparticles – magnetosomes. This study presents the effect of sonication of magnetosome suspension on their acoustic properties, that is speed and attenuation of the sound. Acoustic propagation parameters are measured using ultrasonic spectroscopy based on FFT spectral analysis of the received pulses. The speed and attenuation of ultrasonic waves in magnetosome suspensions are analysed as a function of frequency, temperature, magnetic field intensity, and the angle between the direction of the wave and the direction of the field.