scholarly journals Improving the quality of sleep under distant effects of weak extremely low frequency electromagnetic fields measured by subjective indicators

2018 ◽  
pp. 61-82
Author(s):  
I.S. Blokhin ◽  
G.N. Arsen'ev ◽  
V.B. Dorokhov
Keyword(s):  
Circadian Rhythms ◽  
Sleep Quality ◽  
Sleep Latency ◽  
Low Frequency ◽  
Subjective Assessment ◽  
Pulse Frequency ◽  
Sleep Fragmentation ◽  
Extremely Low Frequency ◽  
The Impact

Periodic variations of natural weak extremely low frequency electromagnetic field (ELF-EMF) along with illumination can serve for entrainment of circadian rhythms. It seems promising to use the non-pharmacological remote physiotherapy exposure to ELF-EMF for the correction of sleep disorders and the normalization of circadian rhythms of sleep. The aim of our study was to assess the impact of weak ELFMF on different characteristics of night sleep, estimated by subjective assessment of sleep quality. In our experiments, an ELF-EMF generator “Smart Sleep” formed rectangular current pulses supplied to the magnetic field emitter. The device has 7 modes of pulse frequency: 2, 4, 8, 16, 20, 32, 40 Hz. At a distance of 70–200 cm from the device field intensity was less than 0.2 µT, which is significantly less than the permissible hygienic standards. 20 healthy volunteers (both sexes, aged 20–30) took part in the study and self-assessed the night’s sleep: sleep quality, sleep latency, wellbeing on awakening, sleep fragmentation, quality of dreams, emotions in dreams, dreams’ memorability, awareness in dreams. The Kruskall-Wallis single-factor rank analysis was used. Significant improvements under ELF-EMF influence were found: p < 0,05 for the: wellbeing on awakening (4 Hz, 20 Hz), sleep fragmentation (8 Hz) and latency (20 Hz), the dream memorability (4 Hz), quality (2 Hz, 16 Hz), emotions (8 Hz) and awareness (20 Hz); p < 0,01 for the: sleep latency (32 Hz), the dream memorability (2 Hz), quality (4Hz) and emotions (2 Hz).

Sleep Quality in Children and Adults with Rett Syndrome

2020 ◽  
Vol 51 (03) ◽  
pp. 198-205 ◽  
Author(s):  
Y. Leven ◽  
F. Wiegand ◽  
B. Wilken
Keyword(s):  
Sleep Quality ◽  
Rett Syndrome ◽  
Behavioral Disorders ◽  
Sleep Disturbances ◽  
Primary Caregivers ◽  
Subjective Assessment ◽  
Clinical Approach ◽  
Sleeping Disorders ◽  
The Impact

Abstract Background Over 80% of individuals suffering from Rett syndrome (RTT) are affected over their life period by sleeping disorders. Little is known about the impact of those on the quality of life and a clinical approach to the treatment of sleep disturbances is lacking. Aims Primary aim was to assess sleep quality in children and adults. Secondary aim was to assess behavioral disorders and their relationship to sleep quality. The medication taken by the subjects was also included. Methods Sleep quality and medication were assessed using the sleeping questionnaire for children with neurological and other complex diseases (SNAKE). Behavioral disorders were assessed by the Rett Syndrome Behavior Questionnaire (RSBQ). Questionnaires were sent to the 700 members of the Elternhilfe für Kinder mit Rett Syndrom in Deutschland e.V. (Rett Aid) of which 287 were included. Questionnaires were filled out by the primary caregivers. Results Sleep quality was rated as very good to good by over 60% of caregivers in contrast to data available in the literature. Behavioral disorders related to regression such as loss of acquired hand skills (p = 0.046) and isolation (p = 0.002) were found to be associated with sleep quality. Melatonin showed a significant association (p = 0.007) with sleep quality. Conclusion Our study showed sleep dysfunction to be less prevalent in RTT-affected individuals than evidence from past studies has suggested. Nevertheless, this remains a subjective assessment of sleep quality and therefore the need to find objective, disorder-specific parameters that measure sleep quality in RTT patients persists.

THE EVALUATION OF SERUM SEROTONIN LEVEL AMONG PATIENTS WITH CROHN’S DISEASE AND ITS IMPACT ON QUALITY OF LIFE

2021 ◽  
Vol 27 (Supplement_1) ◽  
pp. S55-S55
Author(s):  
Marcin Sochal ◽  
Piotr Bialasiewicz ◽  
Agata Gabryelska ◽  
Renata Talar-Wojnarowska ◽  
Jakub Fichna ◽  
...  
Keyword(s):  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Sleep Quality ◽  
Sleep Fragmentation ◽  
Clinical Severity ◽  
Serotonin Level ◽  
Intestinal Physiology ◽  
Tnf Α

Abstract Background and aims Serotonin affects intestinal physiology, mood, as well as circadian rhythm. Moreover, serotonin has proinflammatory function. Therefore, the aim of this study was to investigate the role of serotonin in clinical severity of Crohn’s Disease (CD) and its effect on pain and sleep quality. Methods Fifty-nine CD patients (34 in exacerbation and 25 in remission according to the Harvey-Bradshaw Index-HBI) and 25 health control individuals(HC) were recruited. Sleep quality was assessed by the Pittsburgh Sleep Quality Index (PSQI) and subjective severity of pain by the Visual Analog Scale (VAS). Seventeen patients were treated with anti-TNF-α induction therapy for 14 weeks. Results Serotonin level was higher in CD (145.12ng/mL, IQR:98.14–179.25) compared to HC (87.52ng/mL, IQR:70.04–129.39; p=0.002) and in exacerbation of CD (157.66ng/mL, IQR:111.94–197.64) compared to remission (122.33ng/mL, IQR:83.28–163.67; p=0.029). Serotonin level with cut-off point of 92.45 ng/mL is useful for distinguishing participants with CD from HC (sensitivity: 78%, specificity: 60%, positive predictive value: 82%). Positive correlation between serotonin and HBI (r=0.279, p=0.032) and severity of diarrhoea (r=0.260, p=0.047) were found. Serotonin does not correlate with PSQI (r=0.152, p=0.168), but correlates with presence of sleep fragmentation for example by getting up to use the bathroom (joined 5b-5j PSQI questions; r=0.270, p=0.039). Correlations between serotonin and VAS were also obtained (r=0.220, p=0.045). Moreover, serotonin level significantly decreased after anti-TNF-α therapy (192.35ng/mL, IQR:150.36–225.56 vs. 121.11ng/mL, IQR:91.28–188.87; p=0.006). The study was funded by National Science Centre, Poland (#2018/31/N/NZ5/03715). Conclusions Serotonin level correlates with the severity of CD and decreases after anti-TNF-α therapy. It is associated with sleep fragmentation, which may be caused by diarrhea.

The impact of sleep quality on quality of life for autistic adults

2021 ◽  
Vol 88 ◽  
pp. 101849
Author(s):  
Kiley J. McLean ◽  
Shaun M. Eack ◽  
Lauren Bishop
Keyword(s):  
Quality Of Life ◽  
Sleep Quality ◽  
Autistic Adults ◽  
The Impact

Etudes comparées des rythmes circadiens et reflet actimétrique du sommeil de sportifs et de sédentaires en poste régulier de nuit

2003 ◽  
Vol 28 (6) ◽  
pp. 831-887 ◽  
Author(s):  
Benoît Mauvieux ◽  
Laurent Gouthière ◽  
Bruno Sesboüe ◽  
Damien Davenne
Keyword(s):  
Circadian Rhythm ◽  
Circadian Rhythms ◽  
Sleep Quality ◽  
Shift Work ◽  
Physical Training ◽  
Night Shift ◽  
Circadian Variation ◽  
Night Work ◽  
Sedentary Subjects

The aim of this study was to show the resistance and persistence of the circadian rhythm of temperature (T°) and the sleep quality of athletic subjects and sedentary subjects engaged in night work, and attempt to explain the mechanisms that influence these differences. The effects of night work on biological rhythms have been studied extensively in the past few years. The contradictory situations for the night workers irrefutably affect their biological systems. Individuals with high amplitudes in their circadian rhythms have been found to be more tolerant to shift work and this results in a greater stability of circadian rhythms. This seems beneficial in coping with frequent rhythm disturbances. The physical training program seems to improve several mechanisms of the human biological system: amplitudes of circadian rhythms were increased and the circadian rhythm period was more resistant to an environment extreme (night work, shift work, sleep deprivation, or jet lag). To test this hypothesis, athletes and sedentary subjects who were engaged in regular night work were selected in the PSA Peugeot Citroën Automobiles Group in French Normandy country. The circadian rhythm of the T° for both groups was studied with a specific methodology and with extensive spectral analysis, especially the spectral elliptic inverse method. Study models of the rhythm of the T° were determined and the characteristic parameters were exposed. A complementary actigraphic study showed the physical training program's effects on the sleep quality. The results revealed a large stability in the rhythm of circadian variation of T° for the athletes: the amplitude was still large but for the sedentary subjects the amplitude of the T° decreased and it was difficult to adjust a period on the rhythm of T°. The stability and persistent quality of the athletes' circadian rhythm was confirmed. We observed that the actigraphic sleep was greater for athletes than for sedentary subjects, and the acrophase time for the athletes was later than for the sedentary subjects during the night shift. Key words: circadian rhythm of temperature, actimetry, sleep quality, exercise, night work, methodology of rhythms analysis

scholarly journals Pulsed Light treatment below a Critical Fluence (3.82 J/cm2) minimizes photo-degradation and browning of a model Phenolic (Gallic Acid) Solution

Foods ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 380 ◽  
Author(s):  
Wiktor ◽  
Mandal ◽  
Pratap Singh
Keyword(s):  
Acid Solution ◽  
Gallic Acid ◽  
Prediction Models ◽  
Pulse Frequency ◽  
Food Preservation ◽  
Nutrient Loss ◽  
Pulsed Light ◽  
Cumulative Energy ◽  
The Impact

Pulsed light (PL) is one of the most promising non-thermal technologies used in food preservation and processing. Its application results in reduction of microbial load as well as influences the quality of food. The data about the impact of PL on bioactive compounds is ambiguous, therefore the aim of this study was to analyze the effect of PL treatment of a gallic acid aqueous solution—as a model system of phenolic abundant liquid food matrices. The effect of PL treatment was evaluated based on colour, phenolic content concentration and antioxidant activity measured by DPPH assay using a design of experiments approach. The PL fluence (which is the cumulative energy input) was varied by varying the pulse frequency and time. Using Response Surface Methodology, prediction models were developed for the effect of fluence on gallic acid properties. It was demonstrated that PL can modify the optical properties of gallic acid and cause reactions and degradation of gallic acid. However, application of PL did not significantly alter the overall quality of the model gallic acid solution at low fluence levels. Cluster analysis revealed that below 3.82 J/cm2, changes in gallic acid were minimal, and this fluence level could be used as the critical level for food process design aiming to minimize nutrient loss.

scholarly journals The Use of Virtual Reality in Geo-Education

2020 ◽  
Vol 15 (20) ◽  
pp. 59
Author(s):  
Nurzhanat Dalelovna Shakirova ◽  
Nidal Al Said ◽  
Svetlana Mihailovna Konyushenko
Keyword(s):  
Virtual Reality ◽  
Subjective Assessment ◽  
Physical Geography ◽  
Google Earth ◽  
Learning System ◽  
Technological Capabilities ◽  
Before And After ◽  
E Learning ◽  
The Impact

The paper discusses the technological capabilities of virtual reality (VR) in the field of education as a highly developed form of computer modeling. VR is con-sidered to be able to revolutionize the education field since it provides better en-gagement in learning activities than other teaching methods. In order to study the impact of VR technology on ensuring the quality of e-learning, an experiment is conducted during the Physical Geography online course. The current research in-volves 60 third-year students from the Abai Kazakh National Pedagogical Uni-versity, Moscow Pedagogical State University, and Ajman University. All the re-spondents were divided into two groups. The training of the first group is under-gone through distance learning in the Moodle e-learning system, while the educa-tional process of the second is supplemented with the technological capabilities of the latest VR services (Google Earth, Apple Maps, My Way VR, The VR Muse-um of Fine Art). During the study, students’ subjective assessment of the training is performed according to the basic, expected, and desirable criteria. The exami-nation is carried out in two stages - before and after the course. At the first stage of the assessment, the use of VR corresponds to the desired quality of the educa-tional product. However, after the course and the acquiring of virtual experience, the transfer of the students' desired training criteria into the expected can be ob-served. This indicates a high degree of adaptability of VR technology in educa-tion as well as an increase in the respondents' requirements against the quality of subsequent training courses. Consequently, a significant impact of immersive technology's evolution on the demands on the e-learning quality can be noted.

scholarly journals Effect of extremely low frequency electromagnetic field exposure on sleep quality in high voltage substations

2012 ◽  
Vol 9 (1) ◽  
Author(s):  
Tayebeh Barsam ◽  
Mohammad Reza Monazzam ◽  
Ali Akbar Haghdoost ◽  
Mohammad Reza Ghotbi ◽  
Somayeh Farhang Dehghan
Keyword(s):  
Electromagnetic Field ◽  
Sleep Quality ◽  
High Voltage ◽  
Low Frequency ◽  
Field Exposure ◽  
Extremely Low Frequency
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