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Wyświetlanie 1-4 z 4
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:
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:
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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