Učinci različitih aspekata koordinacije na način borenja i razinu sportske vještine kadetskih judo natjecatelja

The primary aim of this study was to determine the relationship between certain aspects of coordination, the time course of a bout and sport-related skill levels in cadet judoists. The study evaluated eight judokas with high sport skill levels. Based on the analysis of tournament matches (N=66), the authors determined the activity, effectiveness of actions and the level of achievement. Ten aspects of coordination were assessed by 28 indices. It was found that a high level of adaptive ability was a prerequisite for high levels of activity during the phase I of a bout. Shorter durations of complex reaction time were correlated with higher effectiveness in both the phase I and throughout a bout. High level of visual-motor coordination was correlated with high effectiveness and its increase during the phase II of a bout. Certain aspects of coordination seem to be necessary components of the technical and tactical coaching of cadets. However, they do not correlate directly with the level of achievement.Primarni cilj ovog istraživanja bio je utvrditi povezanost između pojedinih aspekata koordinacije, tijeka borbe i razine specifičnih motoričkih znanja u judaša kadetskog uzrasta. U istraživanju je testirano osam tehnički visokokvalitetnih judaša. Na temelju analize turnirskih borbi (N=66), autori su utvrdili aktivnost, učinkovitost akcija te razinu uspjeha sportaša. Deset aspekata koordinacije bilo je procijenjeno pomoću 28 pokazatelja. Utvrđeno je da je visoka razina sposobnosti adaptacije preduvjet za visoku razinu aktivnosti tijekom prve polovice judo borbe. Kraće vrijeme kompleksne reakcije bilo je u korelaciji s višom razinom učinkovitosti u prvom dijelu borbe, ali i tijekom cijele borbe. Visoka razina vizualno-motoričke koordinacije predstavlja preduvjet za visoku razinu učinkovitosti u borbi, a razina koordinacije povećavala se tijekom drugog dijela borbe. Čini se da su određeni aspekti koordinacije komponente potrebne za tehničko-taktičko usavršavanje kadeta. Ipak, aspekti koordinacije nisu izravno povezani s razinom uspjeha na natjecanju

Review of Experimental Verification Methods of Gyrotron Quasi-optical Mode Converters, Journal of Telecommunications and Information Technology, 2020, nr 3

This survey presents a review of experimental methods relied upon while implementing gyrotron higher mode generation techniques and performing near electromagnetic field measurements in launcher and quasi-optical mode converters. In particular, the paper focuses on low power (cold) testing of gyrotron quasi-optical mode converters outside of the gyrotron, without the presence of high electromagnetic power and electron beam

Učinci različitih aspekata koordinacije na način borenja i razinu sportske vještine kadetskih judo natjecatelja

The primary aim of this study was to determine the relationship between certain aspects of coordination, the time course of a bout and sport-related skill levels in cadet judoists. The study evaluated eight judokas with high sport skill levels. Based on the analysis of tournament matches (N=66), the authors determined the activity, effectiveness of actions and the level of achievement. Ten aspects of coordination were assessed by 28 indices. It was found that a high level of adaptive ability was a prerequisite for high levels of activity during the phase I of a bout. Shorter durations of complex reaction time were correlated with higher effectiveness in both the phase I and throughout a bout. High level of visual-motor coordination was correlated with high effectiveness and its increase during the phase II of a bout. Certain aspects of coordination seem to be necessary components of the technical and tactical coaching of cadets. However, they do not correlate directly with the level of achievement.Primarni cilj ovog istraživanja bio je utvrditi povezanost između pojedinih aspekata koordinacije, tijeka borbe i razine specifičnih motoričkih znanja u judaša kadetskog uzrasta. U istraživanju je testirano osam tehnički visokokvalitetnih judaša. Na temelju analize turnirskih borbi (N=66), autori su utvrdili aktivnost, učinkovitost akcija te razinu uspjeha sportaša. Deset aspekata koordinacije bilo je procijenjeno pomoću 28 pokazatelja. Utvrđeno je da je visoka razina sposobnosti adaptacije preduvjet za visoku razinu aktivnosti tijekom prve polovice judo borbe. Kraće vrijeme kompleksne reakcije bilo je u korelaciji s višom razinom učinkovitosti u prvom dijelu borbe, ali i tijekom cijele borbe. Visoka razina vizualno-motoričke koordinacije predstavlja preduvjet za visoku razinu učinkovitosti u borbi, a razina koordinacije povećavala se tijekom drugog dijela borbe. Čini se da su određeni aspekti koordinacije komponente potrebne za tehničko-taktičko usavršavanje kadeta. Ipak, aspekti koordinacije nisu izravno povezani s razinom uspjeha na natjecanju

Chirurgiczne zaopatrzenie tętniaka gałęzi przedniej zstępującej lewej tętnicy wieńcowej z jednoczesnym pomostowaniem tętnic wieńcowych bez użycia krążenia pozaustrojowego

W niniejszej pracy przedstawiono przypadek 79-letniego mężczyzny z rozpoznanym w koronarografii tętniakiem tętnicy wieńcowej i trójnaczyniową chorobą wieńcową. U chorego wykonano operacje wykluczenia tętniaka i pomostowania tętnic wieńcowych bez użycia krążenia pozaustrojowego. Wydaje się, że takie postępowanie było bezpieczne i mało inwazyjne u pacjenta obciążonego znacznym ryzykiem. (Folia Cardiol. 2004; 11: 535–538

Chirurgiczne zaopatrzenie tętniaka gałęzi przedniej zstępującej lewej tętnicy wieńcowej z jednoczesnym pomostowaniem tętnic wieńcowych bez użycia krążenia pozaustrojowego

W niniejszej pracy przedstawiono przypadek 79-letniego mężczyzny z rozpoznanym w koronarografii tętniakiem tętnicy wieńcowej i trójnaczyniową chorobą wieńcową. U chorego wykonano operacje wykluczenia tętniaka i pomostowania tętnic wieńcowych bez użycia krążenia pozaustrojowego. Wydaje się, że takie postępowanie było bezpieczne i mało inwazyjne u pacjenta obciążonego znacznym ryzykiem. (Folia Cardiol. 2004; 11: 535–538

TEORIA WZMOCNIENIA JEDNOFOLIOWEGO DETEKTORA Z GAZOWYM POWIELANIEM ELEKTRONÓW

Gain prediction theory of single foil Gas Electron Multiplier detector was developed. Gas electron multiplier (GEM) detector with single foil was developed. Soft X-ray spectra with an energy of 5.9 keV emitted by the isotope Fe-55 were measured. On this basis, the dependence of gain and energy resolution from the detector voltage was determined. The simple theory of gain dependence on various detector parameters was developed. Preliminary results of the study confirmed the potential usefulness of the GEM detector as a substitute for the multiwire proportional chamber.Opracowano teorię wzmocnienia jednofoliowego detektora z gazowym powielaniem elektronów. Opracowano detektor z gazowym powielaniem elektronów z pojedynczą folią. Zmierzono widmo miękkiego promieniowania X, o energii 5,9 keV, emitowanego przez izotop Fe-55. Na tej podstawie wyznaczono zależność wzmocnienia i energetycznej zdolności rozdzielczej od napięcia zasilającego detektor. Opracowano prosta teorią zależności wzmocnienia od różnych parametrów detektora. Wstępne rezultaty badań potwierdzają potencjalną przydatność detektora GEM jako substytutu wielodrutowej komory proporcjonalnej