Autor: Krawczyk, Krzysztof - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Przekazanie parlamentom narodowym wniosku Ukrainy o członkostwo w Unii Europejskiej
Transmission to national parliaments of Ukraine’s application for membership of the European Union
Autorzy:: Żołądek, Łukasz
Krawczyk, Kaja
Wołowicz, Krzysztof
Kuszel, Konrad
Powiązania:: https://bibliotekanauki.pl/articles/2194657.pdf
Data publikacji:: 2022
Wydawca:: Kancelaria Sejmu. Biuro Analiz Sejmowych
Tematy:: foreign policy
European Union
Ukraine
Opis:: This communication of the Council of the EU concerns the transmission to national Parliaments of Ukraine’s application for the membership in the European Union, thus fulfilling the requirement of Article 49 of the Treaty on European Union laying down the conditions for accession to the European Union. The authors of the opinion stress the historical and primary importance of this application and the political context of its submission.
Źródło:: Zeszyty Prawnicze BAS; 2022, 3(75); 109-123
1896-9852
2082-064X
Pojawia się w:: Zeszyty Prawnicze BAS
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Color vision assessment following cataract surgery using anomaloscope
Autorzy:: Zabel, Jacek
Michalak, Krzysztof Piotr
Olszewski, Jan
Koszałkowski, Maciej
Przekoracka-Krawczyk, Anna
Powiązania:: https://bibliotekanauki.pl/articles/2046657.pdf
Data publikacji:: 2021-12-27
Wydawca:: Medical Education
Tematy:: cataract
color vision deficits
anomaloscope
Moreland test
Ray leigh test
Opis:: Aim: To evaluate the impact of cataract on color vision detection using an anomaloscope. Methods: 12 patients aged 64–82 years with history of cataract surgery in one eye and mature cataracts in the other eye were examined for color vision using the Rayleigh and the Moreland anomaloscope tests. Results: Different patterns of blue and green color vision deterioration have been observed in the eye with cataract as compared to the IOL eye. A decrease in M1 to approximately 1 (the minimum of the Moreland test scale) was observed in 5 out of 12 participants, whereas an increase in M2 to 99 (the maximum of the Moreland test scale) was observed in 6 out of 12 subjects. R1 found in the Rayleigh test was significantly lower in the cataract eyes as compared to the IOL eyes (38.9 ± 2.3 vs. 43.4 ± 1.6; p < 0.001). Conclusions: It has been shown that cataract causes a decrease in color sensitivity, especially affecting green and blue colors. Following IOL implantation, the previously deteriorated vision of green and blue was clearly improved. The most valuable parameters of the anomaloscope test, which enable to determine cataract severity, were M1, M2 and R1.
Źródło:: OphthaTherapy; 2021, 8, 4; 265-273
2353-7175
2543-9987
Pojawia się w:: OphthaTherapy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Nickel catalyst in coupled plasma-catalytic system for tar removal
Autorzy:: Woroszył-Wojno, Joanna
Młotek, Michał
Ulejczyk, Bogdan
Krawczyk, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/1849320.pdf
Data publikacji:: 2021
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: gliding discharge
plasma-catalytic system
tar decomposition
nickel catalyst
Opis:: Tar formation is a significant issue during biomass gasification. Catalytic removal of tars with the use of nickel cata-lyst allows to obtain high conversion rate but coke formation on catalysts surface lead to its deactivation. Toluene decomposition as a tar imitator was studied in gliding discharge plasma-catalytic system with the use of 5%, 10% and 15% by weight Ni and NiO catalyst on Al2O3 (α-Al2O3) and Peshiney (γ-Al2O3) carrier in gas composition similar to the gas after biomass pyrolysis. The optimal concentration of nickel was identified to be 10% by weight on Al2O3. It was stable in all studiedinitial toluene concentrations, discharge power while C7H8 conversion rate remained high – up to 82%. During the process, nickel catalysts were deactivated by sooth formation on the surface. On catalysts surface, toluene decomposition products were identified including benzyl alcohol and 3-hexen-2-one.
Źródło:: Polish Journal of Chemical Technology; 2021, 23, 3; 24-29
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Soft X-ray Diagnostic System Upgrades and Data Quality Monitoring Features for Tokamak Usage
Autorzy:: Wojenski, Andrzej
Linczuk, Paweł
Piotr, Kolasinski
Chernyshova, Maryna
Mazon, Didier
Kasprowicz, Grzegorz
Pozniak, Krzysztof T.
Gaska, Michał
Czarski, Tomasz
Krawczyk, Rafał
Powiązania:: https://bibliotekanauki.pl/articles/1844595.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: data quality monitoring
FPGA
Verilog/VHDL
HDL
GEM detector
SXR plasma diagnostics
modular measurement system
data evaluation
tokamak
Opis:: The validation of the measurements quality after on-site diagnostic system installation is necessary in order to provide reliable data and output results. This topic is often neglected or not discussed in detail regarding measurement systems. In the paper recently installed system for soft X-ray measurements is described in introduction. The system is based on multichannel GEM detector and the data is collected and sent in special format to PC unit for further postprocessing. The unique feature of the system is the ability to compute final data based on raw data only. The raw data is selected upon algorithms by FPGA units. The FPGAs are connected to the analog frontend of the system and able to register all of the signals and collect the useful data. The interface used for data streaming is PCIe Gen2 x4 for each FPGA, therefore high throughput of the system is ensured. The paper then discusses the properties of the installation environment of the system and basic functionality mode. New features are described, both in theoretical and practical approach. New modes correspond to the data quality monitoring features implemented for the system, that provide extra information to the postprocessing stage and final algorithms. In the article is described also additional mode to perform hardware simulation of signals in a tokamak-like environment using FPGAs. The summary describes the implemented features of the data quality monitoring features and additional modes of the system.
Źródło:: International Journal of Electronics and Telecommunications; 2021, 67, 1; 109-114
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: An assessment of physical efficiency in cadet pilots before and after the implementation of a program preparing for flights
Autorzy:: Wochyński, Zbigniew
Krawczyk, Piotr
Cur, Krzysztof
Kobos, Zdzisław
Powiązania:: https://bibliotekanauki.pl/articles/2095501.pdf
Data publikacji:: 2021-09-03
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: physical fitness
examination
training program
Aviation Synthetic Efficiency Test
special aviation gymnastic instruments
targeted efficiency
Opis:: ObjectivesThe aim of the study was to examine the impact of the training program on directed physical fitness.Material and MethodsThe research involved 35 male cadets of the Polish Air Force Academy in Dęblin. The examined persons were on average 19 years old. All the examined persons were divided into 2 groups. Group I (N = 25, the test group) carried out a program on Special Aviation Gymnastic Instruments. Group II (N = 10, the control group) conducted the standard physical military education program. In both groups, the test was performed twice, before (examination I) and after (examination II) the preparatory process, using the following tests: pull-ups, a 16.5-meter race, a 10×10-meter shuttle race, forward bends, and the Aviation Synthetic Efficiency Test (ASET). The findings obtained in these tests were converted into points for the overall evaluation of physical fitness. The training lasted 70 days.ResultsIn group I, in examination II, there was a statistically significant increase in the results of pull-ups (p < 0.01), the 16.5-meter race (p < 0.01), the 10×10-meter shuttle race (p < 0.05), forward bends for 2 min (p < 0.05) and the overall physical fitness (p < 0.05), compared to examination I. In group II, in examination II, the authors proved an insignificant increase in the findings when contrasted with examination I. The test results between groups I and II did not show any significant differences in the examined efficiency tests. In group I, in examination I, significant correlations were found between the overall physical fitness and pull-ups, the 10×10-meter shuttle race, the 16.5-meter race, forward bends and ASET. Examination II demonstrated significantly stronger correlations between the overall physical fitness and forward bends as well as ASET. In group II, in examination II, a significant correlation was shown between the overall physical fitness and the 16.5-meter race.ConclusionsA significant correlation between the overall physical fitness and ASET in examination II indicates an impact of the training program on the targeted efficiency of the cadet pilots.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2021, 34, 5; 647-658
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: The assessment of the impact of a training process on the habituation of the vestibular-vegetative system, using a special rotational test as a condition of maintaining flight safety
Autorzy:: Wochyński, Zbigniew
Krawczyk, Piotr
Cur, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/2116592.pdf
Data publikacji:: 2020-06-16
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: space motion sickness
special aviation gymnastic instruments
test on the unlocked looping
vestibular-vegetative system
training process
Coriolis effect
Opis:: ObjectivesThe authors formulated a hypothesis that, on completion of the training program by cadets, their vestibular habituation would increase, measured by the time of the duration of the test on the unlocked looping, in contrast to the initial values and the control group.Material and MethodsThe research involved 35 male cadets, first-year students of the Polish Air Force Academy in Dęblin. The examined persons were on average 20 years of age. They were divided into 2 groups. Group A (N = 25, tested) continued training on Special Aviation Gymnastic Instruments (SAGI). The cadets were a homogeneous group of participants in the jet pilot course, selected by the Military Aeromedical Board. Group B (N = 10, control) conducted the standard physical military education program. Groups A and B were tested on the unlocked looping before and after the training process. In the training process, the groups had heart rate (HR) monitored.ResultsThe cadets in group A on the test in the unlocked looping, at the beginning of the training period, had an average score of 468.5±96.6 s, and on completion of the training period 575.6±47.9 s, which is a statistically significant difference at p < 0.000001. Similarly, the examined individuals in group B received an average score of 396.2±31.8 s, and at the end of the training period 473.4±72.0 s, which is a statistically significant difference at p < 0.01. In group A, a statistically significant decrease in the average HR value was observed. In group B, there was a statistically significant increase in the average HR value.ConclusionsThe exercises on SAGI have a beneficial impact on improving the habituation of the vestibular organ in training cadets in examination II, as opposed to examination I and the control group.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2020, 33, 4; 497-506
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Analysis of the Impact of Wiper Geometry Insert on Surface Roughness and Chips in Machining Materials Used in the Aviation Industry
Autorzy:: Szablewski, Piotr
Smak, Krzysztof
Krawczyk, Bartłomiej
Powiązania:: https://bibliotekanauki.pl/articles/2022247.pdf
Data publikacji:: 2022
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: surface roughness
chips
turning
Wiper
aviation materials
Opis:: Nowadays, great emphasis is placed on increasing the efficiency of machining processes. However, this cannot be done at the expense of quality worsening of the machined surface. In this paper the influence of Wiper geometry on Ra and Rz surface roughness parameters is described when finishing turning of materials used in the aviation industry: austenitic stainless steel XCrNiNb18-9, low alloy steel 14NiCr14 and aluminum alloy A356, as well as the chips generated in the cutting process in terms of shape were assessed. It was found that for the lowest tested feed rate during turning with a Wiper insert, the values of Ra and Rz parameters do not differ significantly from the roughness parameters obtained during machining with a conventional insert. The beneficial effect of feed rate on surface roughness for the Wiper insert is clearly visible above f ≥ 0.12 mm/rev. The biggest difference in roughness parameters was recorded for the highest value of the applied feed f = 0.28 mm/rev. Using conventional insert, Ra and Rz values are almost three times bigger than for Wiper insert. The influence of the cutting speed on the Ra and Rz parameters depends on the type of material being processed. Increasing cutting speed from vc =120 m/min to vc = 200 m/min for stainless steel, Ra and Rz values decrease about 35%. Similar situation noticed for aluminum alloy, but increasing cutting speed decrease Ra and Rz values only about 18%. The situation is different for low alloy steel. Increasing the cutting speed increases the Ra and Rz parameters by about 37%. Rz/Ra ratio shows that for feed rate f ≤ 0.12 mm/rev. cutting process is unstable, because the values are between 5.5–7.5, but should oscillate around 4. Increasing feed rate value to f = 0.2 mm/rev allows to stabilize the process and the ratio value is close to 4. Wiper insert create the same form chips as a conventional insert, using the same value of feed rate.
Źródło:: Advances in Science and Technology. Research Journal; 2022, 16, 1; 203-212
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Meteoryty – najstarszy materiał do wytwarzania narzędzi żelaznych?
Meteorites – the oldest material for fabricating iron artifacts?
Autorzy:: Socha, Krzysztof
Suliga, Ireneusz
Krawczyk, Henryk
Powiązania:: https://bibliotekanauki.pl/articles/1033010.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Meteorytowe
Tematy:: functional products from meteorites
iron meteorites
meteorites
plastic deformation
Opis:: This article describes the results of metallurgical studies of three experiments on hammering products made of iron meteorites. The objective qualification criteria of these materials created by plastic deformation were defined: carburization in smithing hearth, creating martensitic structure and the existence of small-martensitic weld and increased content of nickel.
Źródło:: Acta Societatis Metheoriticae Polonorum; 2014, 5; 104-114
2080-5497
Pojawia się w:: Acta Societatis Metheoriticae Polonorum
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Influence of Adriblastin and Bleomycin on Wistar rat mothers and fetus development
Autorzy:: Sęk-Mastej, Anna
Galiniak, Sabina
Krawczyk-Marć, Izabela
Balawender, Krzysztof
Szymczak, Artur
Kaniewski, Maciej
Leksa, Natalia
Biesiadecki, Marek
Orkisz, Stanisław
Powiązania:: https://bibliotekanauki.pl/articles/454733.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:: pregnancy
foetus
congenital defect
teratogen
Opis:: Introduction. Gestation is a very sensitive time both to mother and child. Any substance, factor, or environmental condition disturbing homeostasis may cause congenital defects, anomalies or even death. Teratology evaluates those potential factors and their influence. Also, medicinal products used during pregnancy may be teratogenic. Adriblastin, also known as Doxorubicin, and Bleomycin are widely used cytostatic drugs in oncology. Aim. Aim of this study was to evaluate the embryotoxic effects of Doxorubicin and Bleomycin in an animal model. Materials and methods. Fertilised Wistar rat females were given each drug intraperitoneally between the 8th and 15th gestation day, and compared to control group receiving placebo (distilled water, 0.9% NaCl). Another group received acetyl salicylic acid, as a model, well known teratogen. Changes in mothers’ weight from baseline, implantation of embryos, any discrepancies in mothers wombs and health as well as defects in fetuses were evaluated and compared. Fetus skeletons were stained by Dowson’s method to visualise bone defects. Results and conclusion. Both Adriblastin and Bleomycin were teratogenic, producing significantly more embryo absorptions, and fetal defects compared to placebo. The effects of the two cytostatics were similar to the model teratogen acetyl salicylic acid.
Źródło:: European Journal of Clinical and Experimental Medicine; 2018, 2; 85-91
2544-2406
2544-1361
Pojawia się w:: European Journal of Clinical and Experimental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Wpływ miękkich multifokalnych soczewek kontaktowych z wysokimi addycjami na koordynację wzrokowo-ruchową
The influence of soft multifocal contact lenses with high additions on the eye–hand coordination
Autorzy:: Przekoracka, Katarzyna
Michalak, Krzysztof
Michalski, Andrzej
Olszewski, Jan
Paluch, Joanna
Przekoracka-Krawczyk, Anna
Powiązania:: https://bibliotekanauki.pl/articles/1927589.pdf
Data publikacji:: 2019
Wydawca:: Medical Education
Tematy:: kontrola progresji krótkowzroczności
koordynacja oko–ręka
krótkowzroczność
miękkie multifokalne soczewki kontaktowe
Opis:: Celem zaprezentowanych badań było sprawdzenie, czy miękkie multifokalne soczewki kontaktowe z wysokimi addycjami o konstrukcji przeznaczonej do kontroli krótkowzroczności mogą wpływać na ruchy oczu i koordynację oko–ręka. W badaniu wzięło udział 24 młodych dorosłych, którym zaaplikowano miękkie multifokalne soczewki kontaktowe (Relax, SwissLens) z addycją +2D (Add2) i +4D (Add4) oraz kontrolne soczewki jednoogniskowe (Add0, Orbis, SwissLens). Zadaniem uczestników było sięganie w kierunku kółka wyświetlanego na ekranie dotykowym. Mierzono czasy reakcji, dokładność dotknięcia celu oraz latencje ruchów oczu. Wyniki wykazały, że miękkie multifokalne soczewki kontaktowe nie wpłynęły na latencje ruchów oczu (135, 136 i 139 ms odpowiednio dla Add0, Add2 i Add4, p = 0,171), czasy reakcji (732, 730, 727 ms dla Add0, Add2 i Add4, p = 0,932) ani na procent błędów (17%, 13%, 18% dla Add0, Add2 i Add4, p = 0,386)
The aim of the present study was to assess whether soft multifocal contact lens (SMFCLs) with high addition powers, designed for myopia control, may have an impact on eye movements and eye–hand coordination. A total of 24 young adults used SMFCLs (Relax, SwissLens) with high additions: +2D (Add2) and +4D (Add4). Single vision (Add0) contact lenses were used as controls (Orbis, SwissLens). In the eye–hand coordination task, the study participants were asked to point out the small circle displayed on a touch screen. Reaction time and accuracy of pointing, as well as latency of eye movements were measured. Results showed that SMFCLs had no significant impact on the latency of eye movements (135, 136, 139 ms, for Add0, Add2 and Add4, p = 0.171), reaction time (732, 730, 727 ms for Add0, Add2 and Add4, p = 0.932) or percent error (17%, 13%, 18% for Add0, Add2 and Add4, p = 0.386).
Źródło:: OphthaTherapy; 2019, 6, 4; 252-258
2353-7175
2543-9987
Pojawia się w:: OphthaTherapy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Napoleon bez granic : rozmowa z dr. Krzysztofem Ostrowskim, prorektorem Wyższej Szkoły Humanistycznej w Pułtusku i dyrektorem Ośrodka Studiów Epoki Napoleońskiej
Autorzy:: Ostrowski, Krzysztof.
Powiązania:: Mówią Wieki 2001, nr 5, s. 43-45
Współwytwórcy:: Borucki, Bogdan. Opracowanie
Krawczyk, Jarosław. Opracowanie
Data publikacji:: 2001
Tematy:: Napoleon I (cesarz Francuzów ; 1769-1821)
Ośrodek Studiów Epoki Napoleońskiej Wyższej Szkoły Humanistycznej (Pułtusk)
Polacy
Wojny napoleońskie (1803-1815)
Opis:: Działalność Ośrodka Studiów Epoki Napoleońskiej w Pułtusku.
Fot., plan.
Dostawca treści:: Bibliografia CBW

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Skocz do pozycji: 12.

Tytuł:: Biopolymer compositions for ecological protection and growth stimulation of plants
Autorzy:: Niekraszewicz, Antoni
Wiśniewska-Wrona, Maria
Kopania, Ewa
Orlikowski, Leszek
Pospieszny, Henryk
Krawczyk, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/1035390.pdf
Data publikacji:: 2012
Wydawca:: Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:: biopolymer compositions
growth stimulation.
plant protection
polysaccharides
Opis:: Presented herein are investigations in the preparation of an advanced , human-and environmentfriendly plant protection composition based on selected bioactive biopolymers of the polysaccharide family. In the Institute of Biopolymers and Chemical Fibres the biopolymers were prepared and the biological activity of chitosan in the form of salt and gel and of hemicelluloses (galactoglucomannans) and of their compositions was tentatively evaluated by way of plate tests. Estimated was the impact of such preparations upon the stimulation of the germination rate of radish seeds at concentration of 0.1, 0.01 and 0.005% after 72 hours. The efficacy of the preparations was evaluated based on the number of germinated seeds in the green mass of the sprouts and their length in comparison to a reference in water at pH = 7.0. In Research Institute of Horticulture, Skierniewice, Poland the usefulness of selected iopolymer preparations was evaluated as agents to protect decorative plants against some pathogens (on leaves, in soil) such as Phytophtora cryptogea causing decay of shoots and roots. It could be found that the biopolymer compositions applied to the soil provided a much better rooting of chrysanthemum cuttings in a Phytophtora cryptogea - infected soil. The cuttings were growing much faster and the number of infected ones was largely reduced. The usefulness of a number of chitosan formulations was also evaluated for seed pickling. It was found that the formulations exerted a distinctly positive impact upon the germination, growth and health of the seedlings. Laboratory and greenhouse testing was made in the Institute of Plant Protection, Poznań, Poland where the biological activity of some biopolymer compositions was evaluated. A first selection of the biopolymers was done based on an in vitro examination of the impact upon bacteria growth. (Gram negative - Erwinia amylovora and Gram positive Clavibacter ichiganensis ) on agar or agarose plates and upon the generation of necrotic stains on beans and tobacco caused by lucerne mosaic virus and tobacco mosaic virus respectively. It was found that the preparations with original biopolymer concentration had not affected the viruses directly but stimulated the plants’ immunity against the pathogens.
Źródło:: Progress on Chemistry and Application of Chitin and its Derivatives; 2012, 17; 149-162
1896-5644
Pojawia się w:: Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:: Biblioteka Nauki