The Effects of Atmospheric Pressure Fluctuations on Human Behaviour Related to Injury Occurrences: Study on the Background of Low and Moderate Levels of Geomagnetic Activity

Didyk, L. A.; Gorgo, Yuriy; Prigancova, A.; Tunyi, I.; Váczyová, Magdaléna; Mamilov, S. O.; Dirckx, Joris J.J.

doi:10.5402/2012/791524

Cited by 3 publications

(2 citation statements)

References 20 publications

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“…The group of the surveyed can be divided into two parts: the majority show a response to changes in the magnetic field, a smaller part is resistant to the effects of changes in the magnetic field. This observation confirms our previous studies [8].…”

Section: Discussionsupporting

confidence: 94%

Arterial Blood Oxygen Saturation and Its Dynamics Due to the Environmental Electromagnetic Conditions

Mamilov¹,

Gorgo²,

Esman³

et al. 2019

Innov Biosyst Bioeng

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Background. As widely known, the geomagnetic field intensity does change abruptly during global magnetic disturbances specified as magnetic storms. Those are due to the changing solar activity influencing solar wind parameters and the state of the magnetosphere. This chain of physical processes with their origin in the Sun is described as the space weather. To understand the space weather effects in the environment is most important since those are related to the biosphere as well. Namely, the low-frequency geomagnetic field dynamics, linked with space weather conditions, seems to be a quite probable factor influencing both the pathological and functional state of a human being and biological objects, in general, during magnetic storms. Objective. In this study, the dynamics of an oxygen saturation parameter in human arterial blood is analyzed with regard to extreme space weather when magnetic storms occur. Methods. Experimental setup for measuring changes of the relative concentration of oxyhemoglobin in arterial blood (saturation of arterial blood with oxygen), is a pulse oximeter-spectrophotometer. Measurements were carried out using pulse-oximetry sensor covering the first phalanx of a finger, and laser radiation was directed to the side of the second phalanx. The He-Ne laser with a wavelength of 632 nm was used as a source of electromagnetic radiation. Observational values of the geomagnetic field with a high-time resolution (1-sec) are obtained from the midlatitude Hurbanovo Geomagnetic Observatory (Slovak Republic). Deviations/oscillation ranges regarding the average value were calculated at all frequencies, and low pass filter was applied from the "Seewave-1.7.6" package (F-filter) for frequencies of 0.1, 0.5, 0.01, 0.05, 0.001, and 0.0001 Hz. The data on magnetic storms for 2015 were derived from the file of Kyoto Geomagnetic Center which indicated the dates and the amplitudes of magnetic storms on the Earth. Results. The following variables were analyzed: the average arterial oxygen saturation at the patient's rest, peak-to-peak value of saturation, changes in the average oxygen saturation under laser radiation. A group of 33 persons was daily monitored from March 30, 2015, to May 25, 2015. In the presence of Earth's magnetic field disturbances, the average value of arterial oxygen saturation at the state of rest in 29 persons out of 33 was 93.9 ± 0.9%, peak-to-peak value of oxygen was 1.25 ± 0.24%, and the change in the average arterial oxygen saturation under laser radiation made up 2.34 ± 0.41%. In 4 persons under study the peak-to-peak value of saturation at rest did not differ from the case of the undisturbed geomagnetic field. Conclusions. The results of this study of some blood parameters, namely the oxygen saturation (and oxygenetion) value of the arterial blood and its dynamics due to exposed laser radiation in case of both the undisturbed and disturbed GMF, can be summarized as follows: the decrease of the blood oxygenation in case of the disturbed GMF (magnetic storm conditions) is quite appa...

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Section: Discussionsupporting

confidence: 94%

Arterial Blood Oxygen Saturation and Its Dynamics Due to the Environmental Electromagnetic Conditions

Mamilov¹,

Gorgo²,

Esman³

et al. 2019

Innov Biosyst Bioeng

Self Cite

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“…In our study, there was a strong correlation between indoor and outdoor atmospheric pressure (r = 0.96, p < 0.001). The slight average pressure differences between indoor (higher by approximately ten hPa) and outdoor environments and across seasons (with a three hPa difference between fall and winter) suggest that external air could readily enter through windows, influencing indoor ventilation, air quality, and potentially affecting weather sensitivity symptoms (37). Indoor temperature levels maintained a higher average (19 to 22°C) compared to the outdoors (9.8 to 16°C) during both seasons, with a notable correlation between indoor and outdoor temperatures (r = 0.79, p < 0.001).…”

Section: Baseline Indoor and Outdoor Weather Datamentioning

confidence: 99%

Multilevel and general linear modeling of weather and time effects on the emotional and behavioral states of children with profound intellectual and multiple disabilities

Herbuela,

Karita,

Toya

et al. 2024

Front. Psychiatry

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IntroductionEliciting the emotional and behavioral states of children with severe or profound intellectual disabilities (IDs) and profound intellectual and multiple disabilities (PIMD) due to their complex and atypical developmental trajectories has become increasingly elusive. It is evident that the environment, influenced by weather conditions and time of the day, plays a pivotal role in molding children’s behaviors, emotions, and interactions. This underscores the significance of the environment as a critical factor in exploring the communication dynamics of children with PIMD/IDs.MethodsOver five months during fall and winter seasons, we conducted 105 video-recorded sessions with 20 children aged 8 to 16 with PIMD/IDs. These sessions aimed to capture the emotional and behavioral states interpreted by caregivers while simultaneously collecting indoor and outdoor weather indices, location, and time data. Using cross-classified multilevel and general linear models adjusted for individual characteristics and location variability with subsequent simple slope analyses, we examined the main and seasonal interaction effects of indoor and outdoor weather indices and time of the day on the emotional and behavioral states of children with PIMD/IDs.ResultsThe models revealed that higher atmospheric pressure (atm), indicative of pleasant and favorable weather conditions, was associated with increased engagement (indoor: p < 0.01; outdoor: p < 0.01) and interest (outdoor: p < 0.01) behaviors. In contrast, engagement levels decreased before lunchtime (p < 0.01; p < 0.001), and inclement or unstable weather conditions characterized by low-pressure systems (p < 0.05) and stronger wind speed (p < 0.05) led to more refusal or disagreement. During winter, children displayed significantly more agreement with their caregivers (p < 0.001). Interestingly, they also engaged more on cloudy days (p < 0.05). Furthermore, simple slope analyses revealed that high atm conditions in fall were linked to more engagement (p < 0.05) while humid conditions predicted more assent behaviors (p < 0.001). However, cloudy weather predicted less attentional focusing (p < 0.05) and interest (p < 0.01) behaviors in winter.ConclusionThis study confirms that fluctuations in weather indices, including seasonal changes and time of the day, can provide potential pathway indicators and supplement behavioral observations to elicit the behavioral states of children with PIMD/IDs. These findings highlight the importance of considering these factors when designing meaningful interactions and communication interventions for this population.

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Effect of meteorological factors and lunar phases on occurrence of psychogenic nonepileptic seizures

Izadyar

Fahimi

Hejazi

et al. 2021

Epilepsy & Behavior

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The Effects of Atmospheric Pressure Fluctuations on Human Behaviour Related to Injury Occurrences: Study on the Background of Low and Moderate Levels of Geomagnetic Activity

Cited by 3 publications

References 20 publications

Arterial Blood Oxygen Saturation and Its Dynamics Due to the Environmental Electromagnetic Conditions

Arterial Blood Oxygen Saturation and Its Dynamics Due to the Environmental Electromagnetic Conditions

Multilevel and general linear modeling of weather and time effects on the emotional and behavioral states of children with profound intellectual and multiple disabilities

Effect of meteorological factors and lunar phases on occurrence of psychogenic nonepileptic seizures

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