Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "circadian rhythm" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-8 z 8
    Tytuł:
    Circadian rhythms and second language performance
    Autorzy:
    de Bot, Kees
    Fang, fang
    Powiązania:
    https://bibliotekanauki.pl/articles/780913.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    circadian rhythm
    chronotype
    aptitude
    vocabulary
    Opis:
    Human behavior is not constant over the hours of the day, and there are considerable individual differences. Some people raise early and go to bed early and have their peek performance early in the day (“larks”) while others tend to go to bed late and get up late and have their best performance later in the day (“owls”). In this contribution we report on three projects on the role of chronotype (CT) in language processing and learning. The first study (de Bot, 2013) reports on the impact of CT on language learning aptitude and word learning. The second project was reported in Fang (2015) and looks at CT and executive functions, in particular inhibition as measured by variants of the Stroop test. The third project aimed at assessing lexical access in L1 and L2 at preferred and non-preferred times of the day. The data suggest that there are effects of CT on language learning and processing. There is a small effect of CT on language aptitude and a stronger effect of CT on lexical access in the first and second language. The lack of significance for other tasks is mainly caused by the large interindividual and intraindividual variation.
    Źródło:
    Studies in Second Language Learning and Teaching; 2017, 7, 1; 47-60
    2083-5205
    2084-1965
    Pojawia się w:
    Studies in Second Language Learning and Teaching
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A multifaceted assessment of the nutritional status, diet and eating habits of midwives working on a shift schedule in Wrocław, Poland: evaluation of macronutrients, vitamins and minerals in the diets of midwives participating in the study
    Autorzy:
    Gołąbek, Katarzyna D.
    Chmielewska, Anna
    Karoluk, Ewa
    Regulska-Ilow, Bożena
    Powiązania:
    https://bibliotekanauki.pl/articles/21375379.pdf
    Data publikacji:
    2023-11-27
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    overweight
    diet
    midwives
    vitamins
    circadian rhythm
    shift work
    Opis:
    Objectives The aim of the study was to assess the nutritional status and diet of midwives working on a shift schedule in public hospitals in Wrocław, Poland, and to analyze the variation in their diet according to their working hours (day shift, night shift) and on a non-working day. Material and Methods In the group of 50 midwives, employed in 4 public hospitals in Wrocław weight and body composition, waist and hip circumference, waist-hip-ratio and BMI were assessed. The nutritional habits and quality of the study participants’ diets were assessed by 3-days food dietary recall, including 1 day shift day, 1 night shift day, and 1 non-working day. Results More than half of the subjects were assessed as having excess body weight (BMI ≥25 kg/m2). Thirty percent of participants had BMI ≥25–<30 kg/m2 and 24% BMI ≥30 kg/m2, 70% had a body fat percentage >30%. Fifty-six percent of the diets had an energy value <90% of the subject’s total daily energy expenditure. Significantly higher energy value of diets on the night shift day compared to the morning shift day (1959.05±596.09 kcal vs. 1715.36±654.55 kcal, p = 0.01) were observed. The same relationship applied to cholesterol content (349.50±155.33 mg vs. 261.39±190.59 mg, p = 0.002). A high intake of phosphorus and sodium, exceeding the recommended dietary intake, was noticed. Conclusions The occurrence of a night shift in the shift work schedule is an element of that model that may have a significant impact on the nutritional and health value of shift workers’ diets. Therefore, it seems reasonable to implement nutritional education programs promoting healthy eating choices and habits during night work.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2023, 36, 5; 618-631
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sleep Quality and the Level of Perceived Stress in Medical Students
    Autorzy:
    Bagrowski, Bartosz
    Gutowska, Joanna
    Powiązania:
    https://bibliotekanauki.pl/articles/2125134.pdf
    Data publikacji:
    2022-04-26
    Wydawca:
    Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
    Tematy:
    sleep disturbances
    sleep quality
    stress level
    sympathetic nervous system,
    circadian rhythm
    Opis:
    Sleep is a very important aspect of human life, as it is responsible for regulation of the circadian cycle, body regeneration and reduction of harmful metabolites. Sleep deprivation can be associated with chronic stress, which can have an extremely negative impact on bodily function. The presented study covered 220 students of medical faculties; their correlations between the sleep quality and the level of perceived stress were analyzed. Sleep quality was measured using the PSQI (Pittsburgh Sleep Quality Index), and perceived stress was measured using PSS-10 (10-Item Perceived Stress Scale). A high correlation was shown between the PSQI and PSS-10 results (rs = 0.60), which means that people who were characterized by a low sleep quality also showed a high level of perceived stress. Among the PSQI components that were the most correlated with PSS-10, can be counted in such components as C1 (subjective sleep quality, rs = 0.50), C2 (sleep latency,  rs = 0.51), and C7 (daytime dysfunctions, rs = 0.52). Mobile phone usage at bedtime has also been demonstrated to correlate with poor sleep quality. The study shows a significant relationship between sleep quality and the level of perceived stress, which has also been shown in other studies.
    Źródło:
    Roczniki Psychologiczne; 2022, 25, 1; 87-98
    1507-7888
    Pojawia się w:
    Roczniki Psychologiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Prolactin secretion pattern among female flight attendants
    Autorzy:
    Radowicka, Małgorzata
    Pietrzak, Bronisława
    Wielgoś, Mirosław
    Powiązania:
    https://bibliotekanauki.pl/articles/2085767.pdf
    Data publikacji:
    2021-06-28
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    shift work
    prolactin
    occupational medicine
    hyperprolactinemia
    circadian rhythm disruption
    female flight attendant
    Opis:
    ObjectivesEpidemiological observations indicate that female flight attendants are exposed to some reproductive and endocrine system disturbances. The aim of the study was to determine the incidence of hyperprolactinemia among female flight attendants, and to identify factors affecting the secretion of prolactin in female flight attendants working within 1 time zone as well as on long-distance flights.Material and MethodsThe cross-sectional study covered 103 women aged 23–46 years. The study group (I) was divided into 2 subgroups: subgroup Ia comprising female flight attendants flying within 1 flight zone, and subgroup Ib composed of female flight attendants working on long-distance flights. The control group (II) included women of reproductive age who sought medical assistance due to marital infertility in whom the male factor was found to be responsible for problems with conception in the course of the diagnostic process. The assessment included: age, the body mass index, menstrual cycle regularity, the length of service, the frequency of flying, the prolactin, estradiol and progesterone concentrations, and the result of endometrial biopsy. Descriptive and inferential statistics methods were used to compile the data.ResultsThe incidence of hyperprolactinemia in the female flight attendants (46%) was significantly higher than in the control group (9%), p < 0.001. Differences between subgroups Ia and Ib regarding individual concentrations were not statistically significant (p = 0.425). Hyperprolactinemia among the female flight attendants working ≥15 years is present slightly more often than in those working <15 years: 46% vs. 45% (p > 0.05). No significant difference was revealed in the secretion of prolactin between the study participants spending <60 h/month flying and those spending ≥60 h/month flying (p > 0.05).ConclusionsHyperprolactinemia is more common in female flight attendants than in the general population. High values of prolactin concentration in flight attendants are rarely manifested in clinical symptoms. The frequency of flying and the length of service do not affect the development of hyperprolactinemia or the mean prolactin concentration.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2021, 34, 3; 351-361
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Circadian Rhythm of Heart Rate, Urinary Cortisol Excretion, and Sleep in Civil Air Traffic Controllers
    Autorzy:
    Zużewicz, K.
    Kwarecki, K.
    Waterhouse, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/90437.pdf
    Data publikacji:
    2000
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    heart rate
    cortisol
    sleep disorders
    circadian rhythm
    shift work
    tętno
    zaburzenia snu
    praca zmianowa
    Opis:
    The examination of Air Traffic Controllers (ATCs) from the Warsaw Airport (Poland) included 24-hr ECG monitoring. The participants were 10 civil ATCs, 9 males and 1 woman. The study was carried out on a group of 19 ATCs during their duty periods, 14 of them working 12-hr shifts and 5 performing 24-hr duties. The participants collected urine every 4 hrs, and cortisol concentration was determined. Further, the survey included the quality and duration of sleep, and subjective fatigue in the 62 participants. In ATCs, shift work modifies natural rhythms of the circulatory system and decreases the ability for intensified mental work at night. In consequence ATCs experience frequent sleep disorders.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2000, 6, 3; 383-392
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Measuring the effects of night-shift work on cardiac autonomic modulation: an appraisal of heart rate variability metrics
    Autorzy:
    Fink, Anne M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2116589.pdf
    Data publikacji:
    2020-06-16
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    sleep
    circadian rhythm
    heart rate variability
    sympathetic nervous system
    night shift
    parasympathetic nervous system
    Opis:
    Night-shift workers may develop poor cardiovascular health. Studies about heart rate variability (HRV) metrics could identify risk factors in this population and be used to examine the effectiveness of interventions for optimizing the health of night-shift workers. The purpose of this review was to examine the use of HRV methodologies in studies about night-shift work. Overall, 34 articles met the selection criteria and underwent a methodological critique. The main conclusion across these studies was that night-shift work could increase the sympathetic influences on the variability between heartbeats. In many cases, however, important methodological details were omitted (e.g., the number and duration of electrocardiogram recordings, sampling rates, R–R segment duration, wavelet transform methods). Recommendations include adding measures of disease outcomes, using ≥250 Hz sampling rates and 600-s R–R segments, and measuring sleep and circadian rhythms. With these approaches, researchers can design investigations that identify therapeutic targets for improving the health of night-shift workers.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2020, 33, 4; 409-425
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The value of interdisciplinary research: lessons from the 2017 Nobel Prize in chronobiology
    Autorzy:
    Giebultowicz, J.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1666.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Opolski. Instytut Nauk o Zdrowiu
    Tematy:
    interdisciplinary research
    Nobel Prize
    laureate
    chronobiology
    physiology
    medicine
    circadian rhythm
    biological clock
    Drosophila
    human health
    Opis:
    Since 1901, the Nobel Prize has been awarded to scientists who have made the most important discoveries for the benefit of humanity. The 2017 Nobel Prize in Physiology or Medicine was awarded jointly to Jeffrey C. Hall, Michael Rosbash and Michael W. Young “for their discoveries of molecular mechanisms controlling the circadian rhythm.” It may be surprising to learn that those three scientists dedicated their entire careers to research on the fruit fly, Drosophila melanogaster. However, as their studies progressed, it became increasingly clear that the mechanism of the biological clock that they discovered in Drosophila is very similar to a timekeeping mechanism present in mammals, including humans. Through interdisciplinary work between scientists performing basic research on model organisms and doctors working in medical schools, we have learned over time that daily rhythms support human health while disruption of these rhythms is associated with a range of pathological disorders such as cardiovascular problems, metabolic, neurological, and many other diseases. This short review will highlight critical milestones on the way to understanding biological clocks, focusing on the roles played by the three Nobel Prize winners.
    Źródło:
    Medical Science Pulse; 2018, 12, 1
    2544-1558
    2544-1620
    Pojawia się w:
    Medical Science Pulse
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The role of circadian rhythms and indiyidual differences in human attention in road transport safety
    Znaczenie rytmów dobowych i różnic indywidualnych w zakresie uwagi człowieka w bezpieczeństwie transportu drogowego
    Autorzy:
    Jankowski, K. S.
    Zajenkowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/242075.pdf
    Data publikacji:
    2009
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    transport drogowy
    bezpieczeństwo transportu drogowego
    uwaga
    rytmy dobowe
    czynnik ludzki
    road transport
    road transport safety
    circadian rhythm
    human factor
    attention
    Opis:
    In the paper the role of human attention in road transport safety was considered. In the first part, various, known in psychology aspects of attention such as: selectiveness, scanning, divided attention, shifting and sustain attention were described. Further, research about drivers attention were characterized. From this perspective, especially significant are data associated with divided attention and selectiveness. It was proved that responding simultaneously to secondary task decreases concentration on driving. In this article, the meaning of individual differences in attentional functioning was emphasized. Empirical data suggests that high generał intelligence subjects have bigger capacity of attention than individuals with low general intelligence. Another factor that influences attention is age. Younger drivers (age 23 - 46) under demanding conditions, such as sohing multiple tasks, perform better than older drivers (age 58 - 76). In the last part the work focuses on circadian rhythms in human attention and their impact on transport safety. Many studies suggest that road accidents exhibit variations with circadian (peak at 03:00), weekly and seasonal period. Besides that, many researchers were interested in dynamics of attentional functioning during the day. Results indicate different patterns of responses with respect to different aspects of attention and chronotype.
    W pracy przedstawiono znaczenie uwagi człowieka w bezpieczeństwie transportu drogowego. W pierwszej części zostały omówione różne, spotykane w psychologii, aspekty uwagi takie jak: umiejętność selekcji źródła informacji, zdolność do przeszukiwania pola percepcyjnego, podzielność uwagi, przerzutność oraz przedłużona koncentracja. Następnie zaprezentowane zostały badania nad uwagą u kierowców. W tym zakresie szczególnie istotne wydają się być dane dotyczące podzielności uwagi i selektywności. Wykazano, że wykonywanie dodatkowego zadania towarzyszącego jeździe samochodem obniża koncentrację na prowadzeniu. W artykule pokazano również znaczenie różnic indywidualnych w zakresie uwagi. Badania pokazują, że osoby o wysokiej inteligencji ogólnej mają większą pojemność uwagi, niż osoby o niskiej inteligencji. Innym czynnikiem, który wpływa na uwagę jest wiek. Młodsi kierowcy (w wieku 23 - 46) lepiej funkcjonują w warunkach podwójnego zadania, niż osoby starsze (58 — 76 lat). W ostatniej części pracy skupiono się na dobowych rytmach uwagi. Wiele studiów empirycznych pokazuje, że wypadki drogowe charakteryzują się zarówno dobową (szczyt o godz. 03:00 rano), tygodniową jak i roczną rytmiką. Oprócz tego wielu badaczy zajmowało się zmianami w koncentracji uwagi w ciągu dnia. Wyniki tych badań sugerują inny wzorzec reakcji w zależności od aspektu uwagi oraz chronotypu.
    Źródło:
    Journal of KONES; 2009, 16, 3; 141-147
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies