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    Wyświetlanie 1-4 z 4
    Tytuł:
    Przeszłość sportowa a obecna sprawność fizyczna mężczyzn po 50. roku życia
    Past sports participation and current physical fitness in men over 50 years
    Autorzy:
    Stodółka, Weronika
    Domaradzki, Jarosław
    Powiązania:
    https://bibliotekanauki.pl/articles/464782.pdf
    Data publikacji:
    2015-09-30
    Wydawca:
    Akademia Wychowania Fizycznego we Wrocławiu
    Tematy:
    zdrowie
    sprawność fizyczna
    przeszłość sportowa
    osoby dorosłe
    health
    physical fitness
    past sports participation
    elderly
    Opis:
    Background. The literature on the determinants of health in older adults and the elderly shows a paucity of current research on the long-term effects (positive and negative) of participation in professional sports in youth. The aim of the study was to determine the relationship between early involvement in professional sports and late-age physical fitness. Material and methods. A sample of 48 men over 50 years was recruited, of which 23 were former professional athletes and 25 formed a control group with no history of involvement in sports in youth. Anthropometric and physical fitness measures were collected and basic descriptive statistics were calculated. Data were analyzed with Statistica 9.1 software using Student’s t test for independent samples. Results. Intergroup differences were observed in body fat distribution. In addition, the former athletes exhibited lower waist and hip girths. Conclusions. The lack of statistically significant differences in fitness levels demonstrates that past participation in sports does not guarantee improved health in later life. Additional research is needed involving larger sample sizes and controlling for lifestyle behaviors and quality of life markers.
    Źródło:
    Rozprawy Naukowe Akademii Wychowania Fizycznego we Wrocławiu; 2015, 50; 10-15
    0239-4375
    Pojawia się w:
    Rozprawy Naukowe Akademii Wychowania Fizycznego we Wrocławiu
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zdrowotność stylu życia uczniów szkoły zawodowej we Wrocławiu
    Health behaviors high school unions students in Wroclaw
    Autorzy:
    Łazorczyk, Magdalena
    Domaradzki, Jarosław
    Powiązania:
    https://bibliotekanauki.pl/articles/464686.pdf
    Data publikacji:
    2015-03-31
    Wydawca:
    Akademia Wychowania Fizycznego we Wrocławiu
    Tematy:
    styl życia
    zdrowie
    aktywność fizyczna
    zachowania zdrowotne
    chłopcy
    lifestyle
    health
    physical activity
    health behaviors
    boys
    Opis:
    Background. Lifestyle has the biggest impact on human health. It is a set of everyday human behaviors, the standard responses and certain personality traits. Material and methods. The material includes survey data of 54 male students (aged 16) attending a vocational school in Wroclaw. The survey was conducted in April 2012. The self-made questionnaire adopted in the study was self-contained and consisted of questions relating to the boys’ lifestyle, participation in physical education lessons and extra-curricular activities, regular workouts, nutrition and ways of spending free time. Statistical analysis included calculation of: arithmetic mean, standard deviation, Spearman’s correlation and percentages, taking into account the analysis of selected sports. Results and conclusions. The vast majority of 16-year-old boys associated a healthy lifestyle with physical activity and healthy food. The majority of respondents see the need for physical activity. It is manifested by their regular participation in physical education lessons, and quite often, in extra-curricular activities.
    Źródło:
    Rozprawy Naukowe Akademii Wychowania Fizycznego we Wrocławiu; 2015, 48; 127-136
    0239-4375
    Pojawia się w:
    Rozprawy Naukowe Akademii Wychowania Fizycznego we Wrocławiu
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Memristors : a Short Review on Fundamentals, Structures, Materials and Applications
    Autorzy:
    Domaradzki, Jarosław
    Wojcieszak, Damian
    Kotwica, Tomasz
    Mańkowska, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/226873.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    memristor
    materials
    electronics
    applications
    Opis:
    The paper contains a short literature review on the subject of special type of thin film structures with resistive-switching memory effect. In the literature, such structures are commonly labeled as "memristors". The word "memristor" originates from two words: "memory" and "resistor". For the first time, the memristor was theoretically described in 1971 by Leon Chua as the 4th fundamental passive electronics element with a non-linear current-voltage behavior. The reported area of potential usage of memristor is enormous. It is predicted that the memristor could find application, for example in the domain of nonvolatile random access memory, flash memory, neuromorphic systems and so forth. However, in spite of the fact that plenty of papers have been published in the subject literature to date, the memristor still behaves as a "mysterious" electronic element. It seems that, one of the important reasons that such structures are not yet in practical use, is unsufficient knowledge of physical phenomena determining occurrence of the switching effect. The present paper contains a literature review of available descriptions of theoretical basis of the memristor structures, used materials, structure configurations and discussion about future prospects and limitations.
    Źródło:
    International Journal of Electronics and Telecommunications; 2020, 66, 2; 373-381
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Imaging methods of detecting defects in photovoltaic solar cells and modules: a survey
    Autorzy:
    Maziuk, Maurycy
    Jasińska, Laura
    Domaradzki, Jarosław
    Chodasewicz, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/27311747.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    solar cells
    defects
    photovoltaic cell characterization
    defect imaging
    electroluminescence
    photoluminescence
    Opis:
    In pursuit of increased efficiency and longer operating times of photovoltaic systems, one may encounter numerous difficulties in the form of defects that occur in both individual solar cells and whole modules. The causes of the occurrence range from structural defects to damage during assembly or, finally, wear and tear of the material due to operation. This article provides an overview of modern imaging methods used to detect various types of defects found in photovoltaic cells and panels. The first part reviews typical defects. The second part of the paper reviews imaging methods with examples of the authors’ own test results. The article concludes with recommendations and tables that provide a kind of comprehensive guide to the methods described, depending on the type of defects detected, the range of applicability, etc. The authors also shared their speculations on current trends and the possible path for further development and research in the field of solar cell defect analysis using imaging.
    Źródło:
    Metrology and Measurement Systems; 2023, 30, 3; 381--401
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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