http://hdl.handle.net/20.500.12603/1 2026-08-01T07:06:11Z 2026-08-01T07:06:11Z Květina, Jan http://hdl.handle.net/20.500.12603/2850 2026-07-21T06:46:59Z 2025-01-01T00:00:00Z

Polish-Lithuanian Republican Mythology: opening the research field for a new study of Czech political thought? Květina, Jan This paper analyses the options to apply the model of Polish-Lithuanian republicanism – studied mainly for the 16th–19th century context – for the research of the Czech historical tradition of political thought. By doing so, the article tries to deconstruct the traditional national narrativization of the Czech domestic political discourse as a gradual evolution of classical liberalism and ethnic nationalism (i.e., the narrative created during the National Revival and emphasized dominantly again after 1989) with the help of suggestion that the Czech historical political thought might have reflected specific interpretations of political values (liberty, equality, common good, etc.) that have been already identified in the Polish-Lithuanian aristocratic milieu. Contrary to the Polish historiography that reflects and analyses the domestic tradition of republican political thought on a large scale, the Czech historical science still lacks appropriate theoretical and methodological tools to interpret the Bohemian (and later Czech) discourse of political theory from the perspective of Central European republican tradition. Hence, this paper identifies the main impetuses for such research on possible patterns of Czech historical republicanism, including the challenge to deconstruct the traditional narrativization of the Czech “national story” constructed mainly at the turn of the 19th and 20th centuries. The operationalization of the republican theory in the Central European context – based primarily on the current state of research of the Polish-Lithuanian historical case revealing new contextual meanings of political concepts such as mixed government, liberty, equality, or common good – opens the space for re-interpretation of fundamental Czech political and civic values that have been so far dominantly understood in the framework of the “victory march” of liberal, democratic and ethno-national principles. Such reinterpretation – enriching the perspectives of both Czech as well as broader Central European study of political ideas – is therefore suggested in case of two relevant historical cases: 1) the Bohemian political thought during the 1618 anti-Habsburg uprising; 2) the Czech political discourse in the 1848 revolution.

2025-01-01T00:00:00Z Monnier, Charline Andrýs, Rudolf Castellino, Irene Mičková, Veronika Halečková, Annamária Loskot, Jan Benek, Ondřej Zemanová, Lucie http://hdl.handle.net/20.500.12603/2849 2026-07-21T06:46:52Z 2025-01-01T00:00:00Z

Immobilized animal liver microsomes: A versatile tool for efficient ester hydrolysis in chemo-enzymatic synthesis☆ Monnier, Charline; Andrýs, Rudolf; Castellino, Irene; Mičková, Veronika; Halečková, Annamária; Loskot, Jan; Benek, Ondřej; Zemanová, Lucie Animal liver microsomes are a rich source of carboxylesterases with potential for biocatalytic applications. However, their instability and difficulty in reuse limit their practical application. This study investigates the immobilization of animal liver microsomes from four species Mus musculus (house mouse), Sus scrofa (wild boar), Dama dama (fallow deer), and Capreolus capreolus (roe deer) on Perloza MG microparticles for enhanced stability and reusability. Immobilization significantly improved the stability and pH tolerance of the microsomes, particularly those from D. dama, maintaining esterase activity across a broad pH range (5-9) and enabling the reusability over ten consecutive cycles. The immobilized D. dama microsomes were successfully employed in a preparative-scale chemo-enzymatic synthesis of a cyclophilin D inhibitor, achieving a total reaction yield of 68% with 98% final product purity, demonstrating their potential for sustainable organic synthesis.

2025-01-01T00:00:00Z Aboelezz, Asmaa M. El-Saadawi, Magdi M. Eladl, Abdelfattah A. El-Afifi, Magda I. Bureš, Vladimír Sedhom, Bishoy E. http://hdl.handle.net/20.500.12603/2848 2026-07-21T06:46:43Z 2025-01-01T00:00:00Z

Improved protection scheme for shipboard microgrids based on high frequency impedance method with experimental validation Aboelezz, Asmaa M.; El-Saadawi, Magdi M.; Eladl, Abdelfattah A.; El-Afifi, Magda I.; Bureš, Vladimír; Sedhom, Bishoy E. his paper addresses the critical problem of fault detection in DC zonal shipboard microgrids, which is essential for ensuring system reliability and operational safety. The proposed method detects faults by utilizing the high-frequency characteristics of estimated impedance. The technique involves Fast Fourier Transform analysis of current and voltage waveforms to extract high-frequency components before and after a fault. These features help identify the system’s high-frequency impedance via a communication system. Fault detection is achieved by comparing the estimated impedance with a predefined threshold. The performance of the method is evaluated using MATLAB/Simulink simulations and experimental implementations under various scenarios. Communication between components in the DC zonal microgrid is managed using the IEC 61850 standard. Results demonstrate the method’s effectiveness in detecting faults under diverse conditions, including variations in fault resistance, dynamic load behavior, changes in photovoltaic irradiation, system configuration alterations, noise immunity, and multi-fault scenarios. The method achieves fault clearance times ranging from 0.17 ms in MATLAB/Simulink simulations to 33–45 ms in experimental tests, showing its capability to enhance fault detection in complex DC microgrid environments.

2025-01-01T00:00:00Z Daneš, Jaroslav http://hdl.handle.net/20.500.12603/2847 2026-07-21T06:46:37Z 2023-01-01T00:00:00Z

Diskurz cti a hanby v Aischylově dramatu Daneš, Jaroslav V článku se zabývám diskurzem cti a hanby v Aischylově dramatu. Sleduji, jakým způsobem je tento diskurz využíván, manipulován nebo problematizován. Dospívám k závěru, že ve většině analyzovaných případů je tento diskurz problematizován (Sept., Ag., Suppl., Pers.) nebo též může být implikována jeho ambivalence (Pers.). Naprosto zřetelná je Aischylova revize homérského konceptu nehynoucí slávy (κλέος ἄφθιτον). Válka obecně i hrdinové Aischylových tragédií jsou problematičtí a důraz je jednoznačně položen na utrpení a zdrcující důsledky, které válka přináší, ať už pro členy vládnoucích rodin, nebo pro polis. Jen zřídka můžeme najít příklady neproblematického užití tohoto diskurzu, které vykazují kontinuitu s homérským světem, například pokud jde o podobu smrti bojovníka. To je patrně způsobeno zkušenostmi Aischylovy generace. Aischylos debutoval krátce před tím, než Athéňané odhlasovali podporu povstání proti perskému králi, čímž spustili několik desetiletí trvající vojenský konflikt a mocenské soupeření s Persií. Průběh tohoto konfliktu a následné nabytí hegemonního postavení v řeckém světě přinesly prakticky kontinuální vojenskou angažovanost a velké množství obětí. Ideologie Athén Aischylovy doby pracovala s hérojskými koncepty cti, které umožňovaly získat, udržovat a rozvíjet hegemonní postavení a τιμή s ním spojenou. Toto politicko-společenské směřování si vyžadovalo též novou konceptualizaci vztahu individuálního a kolektivního.

2023-01-01T00:00:00Z