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  • Author: Marek Urban x
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Documentary film as historical narrative

Abstract

The submitted study describes the documentary film as a historical narrative that carries within it problems documented by historians such as Paul Veyne and Hayden White. It argues on behalf of the thesis that a documentary film in itself does not classify historical clues according to historical truth but according to a selected purpose (e.g. despite aesthetic conventions or in the case of a narrative film - according to the story). The study refutes the argument of Noël Carroll, who deals with the popularizing documentary film - specifically, connecting scientific “truth” with the tropological character of a documentary film narrative can create at best an approximate picture of a historical event.

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The Representation of Men and Women in Contemporary Slovak Musical Films Aimed at Children

Abstract

The present study analyses the social representation of women and men in ten contemporary Slovak musical films aimed at children (Spievankovo, Fíha-tralala, Smejko a Tanculienka). An analysis of the internal and external features attributed to “men”, “women”, “boys”, and “girls” has revealed, in line with previous research, that men are associated with strength and courage and women with beauty and care. Gender also determines clothing, props, and mise-en-scene. Contrary to previous findings, women in the analysed films, more often than men, display activity and dominance and take the role of moral and intellectual authorities. Men, on the other hand, are just as emotional as women. In conclusion, the author proposes a hypothesis to explain these discrepancies with the previous research.

Open access
Numerical analysis of road pavement thermal deformability, based on Biot viscoelastic model of porous medium

Abstract

The following study presents numerical calculations for establishing the impact of temperature changes on the process of distortion of bi-phase medium represented using Biot consolidation equations with Kelvin–Voigt rheological skeleton presented, on the example of thermo-consolidation of a pavement of expressway S17. We analyzed the behavior of the expressway under the action of its own weight, dynamic load caused by traffic and temperature gradient. This paper presents the application of the Biot consolidation model with the Kelvin–Voigt skeleton rheological characteristics and the influence of temperature on the deformation process is taken into account. A three-dimensional model of the medium was created describing the thermal consolidation of a porous medium. The 3D geometrical model of the area under investigation was based on data obtained from the land surveying and soil investigation of a 200 m long section of the expressway and its shoulders.

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Accessory brachial artery: a case report, embryological background and clinical relevance

Abstract

Background: The accessory brachial artery (arteria brachialis accessoria) is a rare upper limb vascular abnormality, reported in less than one percent of cases. It is the artery originating from the axillary artery or the brachial artery, which rejoins the brachial artery further along its distal course within the arm or cubital fossa. Its detailed knowledge is necessary in transradial transulnar catheterization during coronary procedures, mainly due to its narrow caliber, which is responsible for the failure of the intervention performance.

Objectives: Present a case of uncharacteristic branching pattern of the accessory brachial artery.

Method: The case was observed during a routine dissection in the left axilla of a female cadaver at the Department of Anatomy at the Third Faculty of Medicine, Charles University in Prague.

Results: The infrapectoral part of the axillary artery gave rise to a branch that descended distally along the medial side of the arm. This artery accompanied firstly the ulnar nerve, then it diverted laterally towards the median nerve and coursed hidden behind it to re-enter the brachial artery within the distal part of the arm, next to the biceps brachii muscle. The calibre of the accessory brachial artery was two mm only.

Conclusion: The accessory brachial artery is a rare variant of the upper limb vascular system and its prevailingly narrow lumen can cause a failure of the transradial/transulnar catheterization intervention.

Open access
Fatigue Testing of Dental Bridges on Selected Examples

Abstract

The paper presents example tests of the functional quality of selected designs of dental bridges. These were: porcelain bridges on a metal base (cobalt based alloy), porcelain bridges on a zirconia base (zirconia ceramic – Zirkon Zahn), and full zirconia bridges (Zirkon Zahn). For the purpose of the study, durability of bridges in cyclic fatigue testing was adopted as a measure of their quality. The tests were carried out on a Zwick Roell Z010 universal testing machine. They consisted in cyclic loading and unloading of dental bridges mounted on gypsum models at a loading force of F= 400 [N] and a frequency of load of f= 1 [Hz]. Each bridge was subjected to a cycle of 7200 loads. The results show that there are no significant differences in the functional quality of the bridges.

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Detection of antibiotic resistance and classical enterotoxin genes in coagulase -negative staphylococci isolated from poultry in Poland

Abstract

Introduction: The study sought to characterise antimicrobial resistance among coagulase-negative Staphylococcus (CNS) species recovered from broiler chickens and turkeys in Poland including the presence of 12 antimicrobial resistance genes and five classical genes of staphylococcal enterotoxins. Material and Methods: A panel of 11 antimicrobial disks evaluated the phenotypic sensitivity of the tested strains to antibiotics. Five multiplex PCR assays were performed using primer pairs for specific detection of antibiotic resistance genes and staphylococcal enterotoxin A to E genes. Results: Selected antimicrobial agent susceptibility testing revealed 100% of such in in vitro conditions to cefoxitin among strains of Staphylococcus sciuri and S. chromogenes. The blaZ (for ß-lactam) and mecA (for methicillin resistance) genes were in 58.3% and 27.5% of strains, respectively. Among genes resistant to tetracyclines, tetK was most frequent. Fewer (CNS) strains showed genes resistant to macrolides, lincosamides, and florfenicol/chloramphenicol. Multiplex PCR for classical enterotoxins (A-E) detected the see gene in two S. hominis strains, while the seb gene producing enterotoxin B was found in one strain of S. epidermidis. Conclusion: CNS strains of Staphylococcus isolated from poultry were either phenotypically or genotypically multidrug resistant. Testing for the presence of the five classical enterotoxin genes showed that CNS strains, as in the case of S. aureus strains, can be a source of food intoxications.

Open access