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Wyszukujesz frazę "Nowak, M.K." wg kryterium: Autor


Tytuł:
Analysis of the parameters of supercapacitors containing polypyrrole and its derivatives
Autorzy:
Gocki, M.
Nowak, A.J.
Karoń, K.
Powiązania:
https://bibliotekanauki.pl/articles/24200628.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
polymer supercapacitor
conductive polymers
cyclic voltammetry
chronopotentiometry
superkondensator polimerowy
polimery przewodzące
woltamperometria cykliczna
chronopotencjometria
Opis:
Purpose: Investigation of some parameters of energy storage devices (so-called supercapacitors) in which the structures of selected conductive polymers were implemented. Researchers were interested in the relationship between the parameters of the supercapacitor and the molecular structure of the conductive polymer used as the electrode material. Design/methodology/approach: The polypyrrole and its derivatives were produced by an electropolymerization process performed with cyclic voltammetry. During the research, polymer supercapacitors were created containing collectors made of ITO plates. Measurement of device parameters using cyclic voltammetry and chronopotentiometry. In addition, the devices use polymer electrolytes based on poly (methyl methacrylate) (PMMA). Findings: Devices containing polypyrrole have the best electrochemical parameters, while supercapacitors containing poly (phenylpyrrole) have the lowest parameters. This parameter is due to the high hindrance in the poly(phenylpyrrole) molecule in the form of an aromatic ring. Research limitations/implications: The most significant limitation of the devices is their durability due to the low strength of the conductive layer on ITO plates. This layer was easily degraded with too many test cycles. Practical implications: It was confirmed that polypyrrole and its derivatives could be used as electrode materials in energy storage devices. Originality/value: One of the few studies that allow the evaluation of the molecular structure of polypyrrole and its derivatives as electrode material in symmetrical supercapacitors.
Źródło:
Archives of Materials Science and Engineering; 2023, 120, 1; 5--14
1897-2764
Pojawia się w:
Archives of Materials Science and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Suspicion of bovine tuberculosis in sheep in the Małopolskie Voivodeship (southern Poland)
Autorzy:
Didkowska, A.
Żmuda, P.
Orłowska, B.
Nowak, M.
Filip-Hutsch, K.
Cuper, K.
Krajewska-Wędzina, M.
Anusz, K.
Powiązania:
https://bibliotekanauki.pl/articles/16539333.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
bovine tuberculosis
dairy products
IGRA
sheep
tuberculin skin test
Opis:
Bovine tuberculosis (BTB) in sheep (Ovis aries) is caused by Mycobacterium bovis and Mycobacterium caprae. Even though sheep have been considered less sensitive to BTB than other ruminants, they have been subject to increasing numbers of tuberculosis cases and it has been suggested that they may act as a disease reservoir in some regions. Aim of the study: Following a report of tuberculous-like gross lesions (repeated cases of purulent or caseous lymphadenitis and a single case of serosal tubercles on the peritoneum) from veterinarians working in a slaughterhouse in the Małopolskie Voivodeship, southern Poland, the aim of this study was to conduct ante-mortem BTB diagnostics in three flocks with suspected BTB. The animals for testing were selected randomly from the flocks; a blood sample for interferon-γ release assay (IGRA) and a single tuberculin skin test (TST) was performed on each sheep. All TST results were negative. The IGRA result was positive in two ewes from the same flock (four and five years of age); these two sheep were tested microbiologically using Stonebrink and Löwenstein-Jensen media. No gross lesions suggesting BTB were observed, and the culture results were negative. Based on the positive IGRA results, together with its high specificity in sheep, and the potential risk to humans posed by consuming local unpasteurized dairy products, we recommend introducing serological BTB screening in sheep from this area, and subjecting the positive results to confirmation by culture.
Źródło:
Polish Journal of Veterinary Sciences; 2022, 25, 3; 469-473
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antimicrobial resistance of Escherichia coli and Klebsiella spp. conventionally sampled from factory-farmed chickens – clinical submissions
Autorzy:
Majewski, M.
Józefiak, A.
Kimsa-Furdzik, M.
Dziubdziela, L.
Hudak-Nowak, M.
Wilczyński, J.
Anusz, K.
Powiązania:
https://bibliotekanauki.pl/articles/28762783.pdf
Data publikacji:
2021
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2021, 28, 2; 271-276
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stress at work as a health risk factor from the opinion of professionally active nurses
Stres w pracy jako czynnik zagrożenia zdrowia w opinii pielęgniarek i pielęgniarzy aktywnych zawodowo
Autorzy:
Dziewisz-Markowska, E.
Chmielewski, J.P.
Czerwiec, M.
Fiks, J.
Markowski, K.
Nowak-Starz, G.
Powiązania:
https://bibliotekanauki.pl/articles/2048064.pdf
Data publikacji:
2021
Wydawca:
Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Tematy:
occupational stress
nurses
work
Opis:
Background. Medical workers, especially nurses, are susceptible to numerous stressful situations, due to the great demands which are a result of the specifics of working with an ill person. The aim of the study was to identify stress factors in nursing work, without taking into account the place of employment (i.e., wards). Material and methods. The study group was made up of a sample of 102 nurses, 15 male and 87 female. The diagnostic poll method and the interview technique were used, and a designed questionnaire was used as the research tool. During statistical analysis, a non-parametric χ2 test was used (p<0.05). Additionally, the strength of the examined relationships was determined (rp). Results. Work was the main source of stress (44.1%) for the participants. Of the nurses, 39.2% often felt stressed at work, whereas emotional tension was present in 25.5% of the participants constantly. Nearly half felt burdened by everyday tasks at work, while talking about the problem (55.9%) and physical activity (37.3%), including walks (19.6%), were the most frequently used forms of fighting stress. Significant relationships were found between the level of stress and the marital status and place of residence of the participants. Conclusions. Some nurses assessed the stress that accompanied them at work as being high and over half of them felt it was an average level of stress. Stress was the most often mentioned detriment-to-health factor in the opinions of the participants.
Źródło:
Health Problems of Civilization; 2021, 15, 3; 196-201
2353-6942
2354-0265
Pojawia się w:
Health Problems of Civilization
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Awareness of smoking in adolescents with inflammatory bowel disease
Autorzy:
Dziekiewicz, M.
Kowalska-Duplaga, K.
Baranowska-Nowak, M.
Nieścioruk, M.
Kuźniarski, S.
Banasiuk, M.
Banaszkiewicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/2085373.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
Crohn’s disease
ulcerative colitis
environmental factors
tobacco
Opis:
Introduction and objectives. Inflammatory bowel disease (IBD) is long life disease that results from an interaction between a polygenetic predisposition and environmental factors, including smoking. The aim of this study was to evaluate beliefs about and awareness of smoking among adolescents with IBD compared to healthy controls. Materials and method. Patients with IBD, Crohn’s disease (CD) and ulcerative colitis (UC), and healthy controls were asked to complete a questionnaire on demographic data and smoking status. The questionnaire also included data on beliefs and awareness of smoking-related health effects, including effects on IBD. Results. A total of 139 IBD patients and 108 controls were enrolled in the study. Of the IBD patients, 17/139 (12.2%) were smokers compared to 18/108 (16.7%) of controls (p=0.3). Patients with IBD were nine times more likely to be everyday smokers than occasional smokers (OR=9.2, 95% CI: 1.9- 45.1, p=0.004). No difference was found between patients with CD and UC in their answers to the question of whether “smoking increases the risk for surgery in your type of IBD” (17/28 (60.7%) vs. 10/29 (34.5%), respectively (p=0.047). More patients with CD than UC were aware of the risks of smoking on their disease: extra-intestinal manifestations and disease exacerbation, OR=11.3 (95% CI: 4.1 – 30.9; p=0.000) and OR=19.3 (95% CI: 6.7 – 55.1; p=0.000), respectively. Conclusions. The data obtained demonstrated that adolescents with CD are much more aware of the role of smoking on CD than are their peers with UC; however, this awareness is still unsatisfactory. Therefore, there is an unmet need to implement better anti-smoking strategies for this group of patients.
Źródło:
Annals of Agricultural and Environmental Medicine; 2020, 27, 1; 61-65
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of Triticum durum genotypes showing increased tolerance to oxidative stress
Identyfikacja genotypów Triticum durum o zwiększonej tolerancyjności na stres oksydacyjny
Autorzy:
Leśniowska-Nowak, J.
Sozoniuk, M.
Kawęcka, M.
Maga, K.
Mrozek, M.
Powiązania:
https://bibliotekanauki.pl/articles/13098639.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
durum wheat
plant tolerance
Triticum durum
oxidative stress
methyl viologen
paraquat
Źródło:
Agronomy Science; 2020, 75, 1; 43-65
2544-4476
2544-798X
Pojawia się w:
Agronomy Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metastatic and non-metastatic sentinel inguinofemoral lymph nodes in vulvar cancer show an increased lymphangiogenesis
Autorzy:
Piechowicz, M.
Mikos, M.
Banas, T.
Okon, K.
Pietrus, M.
Balajewicz-Nowak, M.
Szczudlik, L.
Kojs, Z.
Czerw, A.
Juszczyk, G.
Pityński, K.
Powiązania:
https://bibliotekanauki.pl/articles/2085422.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
anti-D2–40 antibody
lymphatic vessel density
immunohistochemistry
sentinel lymph node
vulvar cancer
Opis:
Introduction and objective. Lymph node involvement is a strong predictor of disease recurrence and patient survival in vulvar cancer. The aim of the study was to evaluate the feasibility of sentinel lymph node (SLN) screening, the incidence of skip metastases, and lymph node lymphangiogenesis. Materials and method. Fifty-five patients participated in this prospective, single centre study. A double SLN screening method was employed using radiocolloid (technetium-99 sulfur colloid) and 1.0% Isosulfan Blue. Immunohistochemistry, using a mouse monoclonal antibody against D2–40, was used to evaluate lymphatic vessel density (LVD). All calculations were performed using STATISTICA software v. 10 (StatSoft, USA, 2011); p<0.05 was considered significant. Results. Using both methods of SLN detection, 100% accuracy was achieved, and skip metastases were diagnosed in only one woman (1.82%). Peri-tumour median LVD was significantly increased compared with matched intra-tumour samples (p<0.001), while median LVD was significantly lower in negative, compared with positive SLN, regardless of whether matched non-SLN were negative (p<0.001) or positive (p=0.005). Metastatic SLN exhibited significantly higher median LVD compared with matched negative non-SLN (p=0.015), while no significant difference in median LVD was detected between positive SLN and matched positive non-SLN. However, negative SLN had a significantly higher median LVD compared with matched negative non-SLN (p = 0.012). Conclusions. SLN detection is a safe and feasible procedure in vulvar cancer. In patients without nodular involvement, SLN, compared with non-SLN, exhibited significantly higher median LVD, which may be an indication of its preparation to host metastases, and thus requires further investigation.
Źródło:
Annals of Agricultural and Environmental Medicine; 2020, 27, 1; 123-128
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transformation of a large multi-speciality hospital into a dedicated COVID-19 centre during the coronavirus pandemic
Autorzy:
Król, Z.
Szymański, P.
Bochnia, A.
Abramowicz, E.
Płachta, A.
Rzepliński, R.
Sługocki, M.
Nowak, B.
Zaczyński, A.
Kozłowski, K.
Posobkiewicz, M.
Wierzba, W.
Powiązania:
https://bibliotekanauki.pl/articles/2085728.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
COVID-19
SARS-CoV-2
coronavirus pandemic
treatment in an infectious hospital
epidemic safety
organizational changes
Opis:
Introduction. The article describes the process of converting a large multi-specialized hospital into one dedicated to COVID-19 patients, and present established standards of work organization in all the wards and training system of the medical and supporting staff. The several weeks pandemic of the COVID-19 disease has forced the healthcare systems of numerous countries to adjust their resources to the care of the growing number of COVID-19 patients. Managers were presented with the challenge of protecting the healthcare workers from transmission of the disease within medical institutions, and issues concerning the physical and psychological depletion of personnel. Materials and method. Based on analyses of the structure and work processes in Central Clinical Hospital (CCH) reconstructive strategic plan was developed. It included: division of existing wards into observation and isolation wards; installing locks; weekly plan for supplying personal protection equipment (PPE); designating new access to the hospital and communication routes; training of medical and supporting staff. The plan was implemented from the first days of conversion of the hospital. Results. The wards of the CCH were converted for observation and isolation, and each one was fitted with sanitary locks. There was a big improvement in the supply of PPE for the medical staff. Separation of the ‘dirty’ and ‘clean’ parts of the CCH were attained, and widespread intensive training not only protected personnel against infections, but also diminished unrest which was discernable at the beginning of conversion. Conclusions. The transformation efforts will ultimately be appraised at the end of the epidemic, but the data looks encouraging. Two weeks after conversion, the testing of hospital Staff was started and by the end of April, 459 tests were had been conducted, of which only 11 were positive.
Źródło:
Annals of Agricultural and Environmental Medicine; 2020, 27, 2; 201-206
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Accuracy of real-time shear wave elastography in the assessment of normal small intestine mucosa in dogs
Autorzy:
Spużak, J.
Kubiak, K.
Glińska-Suchocka, K.
Jankowski, M.
Borusewicz, P.
Kubiak-Nowak, D.
Powiązania:
https://bibliotekanauki.pl/articles/2087460.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
dog
intestine
elastography
Źródło:
Polish Journal of Veterinary Sciences; 2019, 3; 457-461
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anodic Oxide Coatings on Aluminium Resistant to Strong Alkali Environment
Autorzy:
Kozik, A.
Nowak, M.
Gędłek, K.
Leśniak, D.
Zasadziński, J.
Jurczak, H.
Powiązania:
https://bibliotekanauki.pl/articles/355544.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
anodic coating
sealing of anodic coatings
resistant to strong alkali environment
sealing quality
aluminium alloys
Opis:
The aim of this paper was to test currently available on the market products for sealing anodic oxide coatings as well as to test the use of other alternative substances improving the sealing process. The ability to seal in 10 different solutions and the quality of the seal has been tested. The influence of the applied preparations on corrosion resistance and resistance to strongly alkaline environment was also investigated. Based on the results obtained, satisfactory results were archived for the sample sealed in a IMN-OML (Institute of Non-Ferrous Metals in Gliwice, Light Metals Division) solution sealant and in solution of nickel acetate in a medium-temperature process. Sealing by means of nickel acetate solutions is economically justified, and its use allows the process temperature to be lowered. When it comes to resistance to alkalis, samples sealed in IMN-OML sealant are the best. Commercial solutions have also achieved positive results in all tests.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 4; 1335-1342
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bóbr europejski w diecie wilka w Wigierskim Parku Narodowym
European beaver in the wolf diet in Wigry National Park
Autorzy:
Myslajek, R.W.
Romanski, M.
Tolkacz, K.
Nowak, S.
Powiązania:
https://bibliotekanauki.pl/articles/882824.pdf
Data publikacji:
2019
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:
parki narodowe
Wigierski Park Narodowy
drapiezniki
wilk
Canis lupus
sklad pokarmu
bobr europejski
Castor fiber
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2019, 21, 2[59]
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cisgenesis as a novel prospect for crop improvement. A review
Cisgeneza jako perspektywa dla hodowli roślin. Praca przeglądowa
Autorzy:
Dudziak, K.
Sozoniuk, M.
Kowalczyk, K.
Nowak, M.
Powiązania:
https://bibliotekanauki.pl/articles/13104412.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Źródło:
Agronomy Science; 2019, 74, 2; 7-14
2544-4476
2544-798X
Pojawia się w:
Agronomy Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of the Method of Separating Graphene from the Growth Substrate on the Quality of the 2D Material Obtained
Autorzy:
Dybowski, K.
Romaniak, G.
Kula, P.
Jeziorna, A.
Kowalczyk, P.
Atraszkiewicz, R.
Kołodziejczyk, Ł.
Nowak, D.
Zawadzki, P.
Kucińska, M.
Powiązania:
https://bibliotekanauki.pl/articles/351974.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
graphene
polycrystalline graphene
electrochemical delamination
chemical etching
graphene transfer
Opis:
This article presents the research results on impact of the method of polycrystalline graphene layers separation from the growth substrate on the obtained carbon material quality. The studies were carried out on graphene sheets obtained by metallurgical method on a liquid metal substrate (HSMG® graphene). The graphene was separated using chemical etching method or the electrochemical delamination method, by separating by means of electrolysis. During electrolysis, hydrogen is emitted on a graphene-covered of cathode (metal growth substrate) as a result of the voltage applied. The graphene layer breaks away from metallic substrate by gas accumulation between them. The results from these separation processes were evaluated by means of different tools, such as SEM, TEM and AFM microscopy as well as Raman Spectroscopy. In summary, the majority of analyses indicate that the graphene obtained as a result of hydrogen delamination possesses higher purity, smaller size and number of defects, its surface is smooth and less developed after the transfer process to the target substrate.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 4; 1321-1326
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microstructure and properties of tin bronzes produced by the SPD method
Autorzy:
Sobota, J.
Rodak, K.
Nowak, M.
Powiązania:
https://bibliotekanauki.pl/articles/355126.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
tin bronzes
KOBO
microstructure
mechanical properties
corrosion
Opis:
In this article the structural and mechanical properties of grain refinement of Cu-Sn alloys with tin content of 10%, 15% and 20% using the KOBO method have been presented. The direct extrusion by KOBO (name from the combination of the first two letters of the names of its inventors – A. Korbel and W. Bochniak) method employs, during the course of the whole process, a phenomenon of permanent change of strain travel, realized by a periodical, two-sided, plastic metal torsion. Moreover the aim of this work was to study corrosion resistance. The microstructure investigations were performed using an optical microscope Olimpus GX71, a scanning electron microscope (SEM) and a scanning transmission electron microscope (STEM). The mechanical properties were determined with INSTRON 4505/5500 machine. Corrosion tests were performed using «Autolab» set – potentiostat/galvanostat from EcoChemie B.V. with GPES software ver. 4.9. The obtained results showed possibility of KOBO deformation of Cu-Sn casting alloys. KOBO processing contributed to the refinement of grains and improved mechanical properties of the alloys. The addition of tin significantly improved the hardness. Meanwhile, with the increase of tin content the tensile strength and yield strength of alloys decrease gradually. Ductility is controlled by eutectoid composition and especially δ phase, because they initiate nucleation of void at the particle/matrix interface. No significant differences in the corrosion resistance between cast and KOBO processed materials were found.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 1; 95-102
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physical properties and texture of gluten-free snacks supplemented with selected fruit additions
Autorzy:
Wójtowicz, A.
Lisiecka, K.
Mitrus, M.
Nowak, G.
Golian, M.
Oniszczuk, A.
Kasprzak, K.
Widelska, G.
Oniszczuk, T.
Combrzyński, M.
Powiązania:
https://bibliotekanauki.pl/articles/2082641.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
corn snacks
chokeberry
elderberry
strawberries
texture
Opis:
Extrusion-cooking is used to produce directly expanded gluten-free snacks, especially for consumers with celiac disease. The aim of the study was to evaluate the effect of various fruits type supplementation as well as the processing screw speed on the physical properties and texture of ready-toeat corn-based gluten-free snacks. Black elderberry, chokeberry and strawberry were dried and used in the amount of 5 to 20% as a corn grit replacement. The directly expanded snacks were processed with a single-screw extruder at various screw speeds (80 and 120 rpm) and tested to measure their expansion ratio, bulk density, colour profile as well as their texture profile. The results showed the various effects of adding different types and amounts of fruit on the physical properties and texture of supplemented gluten-free snacks. A higher amount of fruit resulted in a significant decrease in the expansion ratio and an increase in the bulk density of the snacks. Reduced lightness and a more pronounced red tint were observed when red fruits were added. The desired hardness of the snacks suggested that the addition of fruit should be retained below 15% of the recipe content. The screw speeds applied showed a significant effect on the expansion, bulk density and texture of the tested snacks.
Źródło:
International Agrophysics; 2019, 33, 4; 407-416
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł

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