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2. Evaluation of the use of silicomolybdate as an electron acceptor for photosystem 2 in photoinhibition research
- Creator:
- Schansker, G. and van Rensen, J. J. S.
- Format:
- Type:
- model:internalpart and TEXT
- Language:
- Multiple languages
- Description:
- Silicomolybdate (SiMo) is an electron acceptor that has many characteristics, the ignorance of which makes an interpretation of the results quite troublesome. In photoinhibitíon experiments the photosystem 2 (PS 2) actívity can be best monitored if 1 pM dibromotíiymoquinone (DBMIB) is added after photoinhibitory treatment and SiMo is added in the light. Diuron (DCMU) may complicate interpretation of the results as it is also a competítíve inhibitor of SiMo binding at pH 7.6. The binding niche of SiMo is probably located at the stroma side between the fourth and fifth helix of the Dl and D2 proteins close to Q^- The whole chain actívity was much more affected by the photoinhibitory treatment than the PS 2 actívity itself Uncoupling of electron flow by addition of ammonium chloride accelerated the rate of photoinhibitíon. Photoinhibitory treatment decreased not only the Hill actívity at photon saturation, but also decreased the quantum yield and increased the photon flux density yielding half maximum rate of electron flow (K^). Decrease of quantum yield indicated that the photochemistry of PS 2 was afiected; increase of indicated a coiďormational change of the SiMo binding site. In experiments on PS 2 actívity monitored witíi SiMo, DCMU had no protectíve effect on the damage of the electron transport chain between water and QA.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
3. Foreplane demonstrator aeroelastic test
- Creator:
- Maleček, Jaromír
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- aircraft aeroelastic demonstrator, stiffness test, ground vibration test, wind tunnel test, and active aeroelastic control
- Language:
- English
- Description:
- The work described in this contribution was performed as a part of the 3AS project (Active Aeroelastic Aircraft Structures) which was funded under contract (Contract No. G4RD-CT-2002-00679) of the European Union. The paper deals with the tests of the X-DIA component aeroelastic demonstrator (the front part of the fuselage with the foreplane of the three plane jet transport aircraft) in the VZLU Prague. and Obsahuje seznam literatury
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
4. Intelektuálne dejiny československého poststalinizmu: Jan Mervart, Jiří Růžička, "Rehabilitovat Marxe!" Československá stranická inteligence a myšlení poststalinské modernity
- Creator:
- Halas, Juraj
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- post-Stalinism, Marxist philosophy, categories, law of value, and socialist commodity production
- Language:
- Czech
- Description:
- In this review essay, Juraj Halas discusses the book „Rehabilitovat Marxe!“ by Jan Mervart and Jiří Růžička, which represents a formidable attempt at mapping and systematizing the development of Marxist philosophy in Czechoslovakia from 1953 to 1969. In their efforts at an “analytical archaeology” of post-Stalinist thought, they identify a range of central tendencies among thinkers who aimed to rehabilitate Marxist philosophy in the postwar period. “Dialectical determinism” was associated with the likes of Josef Cibulka and Jindřich Zelený and focused on ontological or methodological issues. “Marxist humanism” was a current with a heavy philosophical-anthropological focus, represented, e.g., by Karel Kosík. Conversely, the “techno-optimism” of Radovan Richta and his associates was preoccupied with forces of production and the “scientific-technological revolution.” Finally, “legal philosophy,” as propounded by figures such as Zdeněk Mlynář, František Šamalík, and Miroslav Kusý, was set on providing a critical account of modern political institutions and their relation to civil society. Mervart and Růžička associate these four currents with distinct, if overlapping, clusters of philosophical categories. In addition to providing an in-depth analysis of these now largely forgotten contributions to Czechoslovak Marxism, the book offers useful insights into their limits – for example, in terms of their relation to state socialism, (inter)nationalism, and gender. In this review, Halas draws critical attention to a noteworthy omission: Ota Šik’s critique of the “political economy of socialism.” He shows that Šik’s approach satisfies Mervart and Růžička’s own criteria for inclusion. It was specifically post-Stalinist, it was to a large extent philosophical in nature, and it cannot be reduced to any of the other tendencies discussed in the book. Moreover, it was subject to the same kinds of limitations identified in the authors’ analysis of the other four currents. In this sense, Halas’s essay serves to confirm the heuristic import of their approach.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
5. Šlechta ve službách Masarykovy republiky
- Creator:
- Hazdra, Zdeněk
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Bohemian history, Czech aristocracy, and the First Czechoslovak Republic (1918-1938)
- Language:
- Czech
- Description:
- This study discusses the aristocrats who aligned themselves with the Czechoslovak state in 1918 and entered into its service. This was a rather small group (brothers Zdeněk, Antonín and František Bořek-Dohalský, Max Lobkowicz, Jindřich Kolowrat-Krakovský or František Schwarzenberg), but it widened the spectrum of the aristocracy living in the Czech Lands from those who rejected the new state right from the beginning and those who only formally accepted it to those who identified with it right from its birth. and Článek zahrnuje poznámkový aparát pod čarou
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public