Telemetric control in assessing the working capacity of transport industry employees

2021 ◽  
Vol 61 (3) ◽  
pp. 191-196
Author(s):  
Igor B. Maksimov ◽  
Marina A. Fesenko ◽  
Vladimir I. Sinopalnikov ◽  
Aleksey N. Diashev
Keyword(s):  
Heart Rate ◽  
The Body ◽  
Modern World ◽  
Heart Rate Monitoring ◽  
Hardware Complex ◽  
Wide Range ◽  
The Face ◽  
Software And Hardware ◽  
Medical Examinations ◽  
The Impact

Introduction. In the modern world, the introduction of digital technologies in healthcare is one of the priorities of development, which opens up a wide range of opportunities from screening and monitoring to various health disorders. In 2020 we completed the work to evaluate the applied capabilities of contactless videoplethysmography based on the telemetric control system developed by us and patented using the DISITA software and hardware complex during pre-trip post-trip medical examinations in 19 drivers of passenger vehicles. The study aims to explore the possibilities of the data of variational heart rate monitoring using reflected video plethysmography in assessing drivers' performance in their work. We have identified the most sensitive and significant heart rate variability indicators that reflect the professional load's impact. Materials and methods. We carried out during the usual pre-trip examination, video plethysmography of the skin of the face of the subjects in parallel in conditions of both natural daylight and typical artificial lighting of medical and diagnostic rooms, at a distance of the recording WEB camera of the DISITA software and hardware complex from the face of the subject within 40-70 cm. Researchers examined the methodological recommendations developed by the Izmerov Research Institute of Occupational Health team and RT-Medicine JSC. Results. We use videoplethysmography to evaluate variational heart rate monitoring as a method for assessing functional states during mass pre-trip (pre-shift) and post-trip (post-shift) medical examinations. In this case, the heart rate estimated by palpation was identical to the heart rate obtained by videoplethysmography. The most sensitive parameters characterizing the impact of professional load on drivers were changes in the indicators of variational heart rate monitoring: SDNN, RMSSD, CV, TR, HF, LF, and the waves of vasomotion regulation. Conclusions. Videoplethysmography with an assessment of the data of variational heart rate monitoring can be used to predict the functional state (stability of the body) of drivers in the course of their professional activities.

DEVELOPMENT OF CALIBRATION MODULES FOR A COMPLEX OF ASSESSING THE IMPACT OF ELECTROMAGNETIC INTERFERENCE ON ELECTRONIC DEVICES

2022 ◽  
pp. 95-99
Author(s):  
Д.А. Пухов ◽  
А.В. Суворин ◽  
Д.В. Васильченко ◽  
М.А. Ромащенко
Keyword(s):  
Electromagnetic Interference ◽  
Printed Circuit Board ◽  
Mutual Influence ◽  
Circuit Board ◽  
Modern World ◽  
Signal Distortion ◽  
Printed Circuit ◽  
Hardware Complex ◽  
Software And Hardware ◽  
The Impact

В современном мире при стремлении человечества к миниатюризации электротехнической и радиоэлектронной продукции без потери технических характеристик устройств, наряду с их расширением одной из значимых проблем является влияние электромагнитных помех на стабильное функционирование устройств. Представлены модули калибровки, используемые в программно-аппаратном комплексе (ПАК), который позволяет произвести оценку влияния электромагнитных помех (ЭМП) на электронные средства. Практическое искажение сигналов неизбежно, так как причиной помех может стать взаимное влияние элементов печатной платы (ПП) друг на друга, а также конфигурация самого рисунка дорожек ПП и её топологии. Рассматриваются модули, позволяющие выявить ряд ошибок по ранее полученным результатам и обеспечить калибровку комплекса с целью повышения точности оценки влияния самоиндукции и импеданса линии передач на вносимые искажения сигнала при различных конфигурациях трассировки печатной платы. Применение данного программно-аппаратного комплекса позволяет значительно сократить время, необходимое на разработку устройства и комплекс испытаний, что, в свою очередь, снижает финансовую нагрузку на выпуск единицы продукции, поскольку позволяет выявить недостатки устройств на стадии макетирования электротехнической продукции In the modern world, with the desire of all mankind to miniaturize electrical products without loss of power, one of the significant problems is the influence of electromagnetic interference on the stable functioning of devices. This article presents the calibration modules used in the software and hardware complex (SHC), which allows one to assess the influence of electromagnetic interference (EMI) on electronic means. The practical distortion of signals is inevitable since the cause of interference can be their mutual influence on each other, as well as the configuration of the printed circuit board pattern itself. The paper considers modules that allow identifying a number of errors based on previously obtained results and providing calibration of the complex in order to increase the accuracy of estimating the effect of self-induction and transmission line impedance on the introduced signal distortion in various configurations of the PCB trace. The use of this software and hardware complex can significantly reduce the development time and conduct tests that require financial costs since it allows one to conduct a number of experiments at the stage of prototyping electrical products

Occupational diseases of builders and factors affecting their occurrence and development

2021 ◽  
pp. 71-77
Author(s):  
D. V. Semenov ◽  
A. A. Tkachenko
Keyword(s):  
Occupational Diseases ◽  
Vital Role ◽  
The Body ◽  
Educational Work ◽  
Factors Affecting ◽  
Wide Range ◽  
Oncological Diseases ◽  
Noise Vibration ◽  
Medical Examinations ◽  
The Impact

The article deals with individual professional diseases of builders and the factors that influence their occurrence and development. The author believes that a wide range of industrial activities of representatives of the construction professions and the impact of the environment plays a vital role in the development and progression of most occupational diseases. However, the harmful effects of these diseases on the body are greatly underestimated, which reduces the effectiveness of preventive measures and complicates treatment. It is also impossible to ignore the occupational diseases of drivers of construction vehicles. The most common of them are diseases associated with the development of cardiovascular pathology, neuropsychiatric disorders, gastrointestinal disorders, diseases associated with problems with the musculoskeletal system, disorders caused by a sedentary lifestyle, as well as allergic and oncological diseases. In addition, drivers are affected by harmful sanitary and hygienic factors: noise, vibration, high temperature, harmful impurities in the bus cabin, nervous tension. Taking into account all the above factors, it is necessary to carry out appropriate prevention of occupational diseases of representatives of construction specialties by conducting educational work and conducting regular medical examinations.

scholarly journals Hyaluronan and the Fascial Frontier

2021 ◽  
Vol 22 (13) ◽  
pp. 6845
Author(s):  
Rebecca L. Pratt
Keyword(s):  
Nerve Fibers ◽  
The Body ◽  
Water Volume ◽  
Cell Behavior ◽  
Connective Tissues ◽  
Wide Range ◽  
The World ◽  
Extracellular Microenvironment ◽  
The Impact ◽  
The Relationship

The buzz about hyaluronan (HA) is real. Whether found in face cream to increase water volume loss and viscoelasticity or injected into the knee to restore the properties of synovial fluid, the impact of HA can be recognized in many disciplines from dermatology to orthopedics. HA is the most abundant polysaccharide of the extracellular matrix of connective tissues. HA can impact cell behavior in specific ways by binding cellular HA receptors, which can influence signals that facilitate cell survival, proliferation, adhesion, as well as migration. Characteristics of HA, such as its abundance in a variety of tissues and its responsiveness to chemical, mechanical and hormonal modifications, has made HA an attractive molecule for a wide range of applications. Despite being discovered over 80 years ago, its properties within the world of fascia have only recently received attention. Our fascial system penetrates and envelopes all organs, muscles, bones and nerve fibers, providing the body with a functional structure and an environment that enables all bodily systems to operate in an integrated manner. Recognized interactions between cells and their HA-rich extracellular microenvironment support the importance of studying the relationship between HA and the body’s fascial system. From fasciacytes to chronic pain, this review aims to highlight the connections between HA and fascial health.

Lymphoedema after head and neck cancer treatment: an overview for clinical practice

2021 ◽  
Vol 26 (Sup4) ◽  
pp. S24-S29
Author(s):  
Claire Jeans ◽  
Bena Brown ◽  
Elizabeth C Ward ◽  
Anne E Vertigan
Keyword(s):  
Head And Neck Cancer ◽  
Head And Neck ◽  
Neck Cancer ◽  
Lymphatic System ◽  
Review Article ◽  
Psychological Issues ◽  
Wide Range ◽  
The Face ◽  
Protein Rich ◽  
The Impact

Lymphoedema is a disorder of the lymphatic system that presents as an atypical swelling and accumulation of protein-rich fluid within the interstitial spaces. Head and neck lymphoedema (HNL) is highly prevalent in patients who have been treated for head and neck cancer (HNC) and may manifest externally on the face and neck; internally within the oral cavity, pharynx or larynx; or as a combination of both. HNL is known to contribute to a wide range of physical, functional and psychological issues, and presents several unique challenges in terms of its management. This review article provides an overview of HNL for clinicians and aims to improve awareness of this condition and the impact it has on patients.

scholarly journals Flow-induced vibrations of a rotating cylinder in an arbitrary direction

2018 ◽  
Vol 860 ◽  
pp. 739-766 ◽  
Author(s):  
Rémi Bourguet
Keyword(s):  
Three Dimensional ◽  
Rotating Cylinder ◽  
The Body ◽  
Arbitrary Direction ◽  
Fast Rotation ◽  
Flow Past ◽  
Symmetrical Configuration ◽  
Wide Range ◽  
Flow Induced Vibrations ◽  
The Impact

The flow-induced vibrations of an elastically mounted circular cylinder, free to oscillate in an arbitrary direction and forced to rotate about its axis, are examined via two- and three-dimensional simulations, at a Reynolds number equal to 100, based on the body diameter and inflow velocity. The behaviour of the flow–structure system is investigated over the entire range of vibration directions, defined by the angle $\unicode[STIX]{x1D703}$ between the direction of the current and the direction of motion, a wide range of values of the reduced velocity $U^{\star }$ (inverse of the oscillator natural frequency) and three values of the rotation rate (ratio between the cylinder surface and inflow velocities), $\unicode[STIX]{x1D6FC}\in \{0,1,3\}$, in order to cover the reference non-rotating cylinder case, as well as typical slow and fast rotation cases. The oscillations of the non-rotating cylinder ($\unicode[STIX]{x1D6FC}=0$) develop under wake-body synchronization or lock-in, and their amplitude exhibits a bell-shaped evolution, typical of vortex-induced vibrations (VIV), as a function of $U^{\star }$. When $\unicode[STIX]{x1D703}$ is increased from $0^{\circ }$ to $90^{\circ }$ (or decreased from $180^{\circ }$ to $90^{\circ }$), the bell-shaped curve tends to monotonically increase in width and magnitude. For all angles, the flow past the non-rotating body is two-dimensional with formation of two counter-rotating spanwise vortices per cycle. The behaviour of the system remains globally the same for $\unicode[STIX]{x1D6FC}=1$. The principal effects of the slow rotation are a slight amplification of the VIV-like responses and widening of the vibration windows, as well as a limited asymmetry of the responses and forces about the symmetrical configuration $\unicode[STIX]{x1D703}=90^{\circ }$. The impact of the fast rotation ($\unicode[STIX]{x1D6FC}=3$) is more pronounced: VIV-like responses persist over a range of $\unicode[STIX]{x1D703}$ but, outside this range, the system is found to undergo a transition towards galloping-like oscillations characterised by amplitudes growing unboundedly with $U^{\star }$. A quasi-steady modelling of fluid forcing predicts the emergence of galloping-like responses as $\unicode[STIX]{x1D703}$ is varied, which suggests that they could be mainly driven by the mean flow. It, however, appears that flow unsteadiness and body motion remain synchronised in this vibration regime where a variety of multi-vortex wake patterns are uncovered. The interaction with flow dynamics results in deviations from the quasi-steady prediction. The successive steps in the evolution of the vibration amplitude versus $U^{\star }$, linked to wake pattern switch, are not captured by the quasi-steady approach. The flow past the rapidly-rotating, vibrating cylinder becomes three-dimensional over an interval of $\unicode[STIX]{x1D703}$ including the in-line oscillation configuration, with only a minor effect on the system behaviour.

scholarly journals A before and after study of the impact on obstetric and perinatal outcomes following the introduction of an educational package of fetal heart rate monitoring education coupled with umbilical artery lactate sampling in a low resource setting labor ward in South Africa

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Emma R. Allanson ◽  
Robert C. Pattinson ◽  
Elizabeth A. Nathan ◽  
Jan E. Dickinson
Keyword(s):  
Heart Rate ◽  
Cesarean Section ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Perinatal Outcomes ◽  
Heart Rate Monitoring ◽  
Post Intervention ◽  
Fetal Heart Rate Monitoring ◽  
Resource Setting ◽  
The Impact

Abstract Introduction Rates of cesarean section (CS) are increasing and abnormal fetal heart rate tracing and concern about consequent acidosis remain one of the most common indications for primary CS. Umbilical artery (UA) lactate sampling provides clinicians with point of care feedback on CTG interpretation and intrapartum care and may result in altered future practice. Materials and methods From 3rd March - 12th November 2014 we undertook a before and after study in Pretoria, South Africa, to determine the impact of introducing a clinical package of fetal heart rate monitoring education and prompt feedback with UA cord lactate sampling, using a hand-held meter, on maternal and perinatal outcomes. Results Nine hundred thirty-six consecutive samples were analyzed (pre n = 374 and post n = 562). There was no difference in mean lactate (4.6 mmol/L [95%CI 4.4–4.8] compared with 4.9 mmol/L [95%CI 4.7–5.1], p = 0.089). Suspected fetal compromise was reduced in the post-intervention period: 30·2% vs 22·1%, aOR 0·71, 95% CI 0·52–0·96, p = 0·027. Cesarean section rates were significantly reduced in the univariate analysis: pre- 40·3% vs post-intervention 31·6% (p = 0·007). This reduction remained significant when adjusted for previous cesarean section, primiparity, maternal HIV infection and preterm birth (aOR 0·72, 95%CI 0·54–0·98, p = 0·035). Neonatal outcomes did not differ between the two groups. Conclusion The introduction of a clinical practice package of fetal heart rate monitoring education combined with routine UA cord lactate sampling has the potential to reduce the cesarean section rate without increasing adverse neonatal outcomes in a low-resource setting.

Testing the impact of physiological stress response on police performance during critical job tasks

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Lois James ◽  
Michael S. Goldstein ◽  
Peter Lecy ◽  
Stephen Mase
Keyword(s):  
Heart Rate ◽  
Nervous System ◽  
Real Time ◽  
Police Officers ◽  
Physiological Stress ◽  
The Body ◽  
Stress Profile ◽  
Content Type ◽  
Body Of Knowledge ◽  
The Impact

PurposeTo add to the existing body of knowledge on the relationship between stress and job performance in policing, we monitored police officers' physiology using Hexoskin shirts while they responded to simulated scenarios.Design/methodology/approachWe employed mixed repeated measures (baseline, intervention, post-intervention), between groups (treatment vs control group) design. Using this approach, our aims were (1) to determine whether an individualized physiological stress profile—a combination of heart rate (HR), heart rate variability (HRV), sympathetic nervous system (SNS) index and parasympathetic nervous system (PNS) index—could be developed for each participant; (2) to investigate the association between physiological stress and scenario performance and (3) to pilot test an intervention for decreasing physiological stress in real time.FindingsWe found that it was possible to individualize physiological stress profiles for each participant that alerted us when the participant was becoming stressed. We also found that physiological stress was significantly and negatively/inversely associated with scenario performance. However, our intervention to try and decrease participants' stress in real time was not successful. Several key lessons can be taken from our attempt that could inform future efforts in this area.Research limitations/implicationsThis was a small pilot study, precluding generalizability of results. Furthermore, our intervention was simplistic and potentially affected by an experimenter effect. Future research should explore better ways to intervene when officers are becoming physiologically stressed to help them overcome stress in real time and safeguard against the cumulative effects of stress on health and performance.Originality/valueThis research adds to the body of knowledge on physiological stress and job-task performance in police officers.

Does the Body Move the Soul? The Impact of Arousal on Music Preference

2011 ◽  
Vol 29 (1) ◽  
pp. 37-50 ◽  
Author(s):  
Thomas Schäfer ◽  
Peter Sedlmeier
Keyword(s):  
Heart Rate ◽  
Skin Conductance ◽  
Emotional Arousal ◽  
Physiological Arousal ◽  
The Body ◽  
Music Preference ◽  
Physiological Measures ◽  
Subjective Impression ◽  
Body Move ◽  
The Impact

people often report changes in emotional arousal when listening to their preferred music. Can this subjective impression be related to objective physiological measures? And if so, does preference induce arousal or could arousal also influence preference? In Study 1, participants listened to 18 pieces of music and rated the strength of preference as well as their experienced emotional arousal for each piece. In addition, physiological arousal was measured via heart rate, skin conductance, and respiration rate. Results showed that subjective reports about emotional arousal were much more closely connected to the strength of music preference than were physiological measures such as heart rate or skin conductance. The two types of arousal (emotional, physiological) were not substantially associated with each other. In Study 2, we manipulated physiological arousal while one group of participants watched their faces in a mirror during music listening. Effects on music preference differed: For a given piece of unknown music, higher induced arousal yielded higher preference ratings. However, this result only held when the music was not too complex. The results indicated that arousal was not solely a consequence of listening to preferred music but might also be a potent determinant of music preference.

scholarly journals The true cost of in-patient obesity: impact of obesity on inflammatory stress and morbidity

2010 ◽  
Vol 69 (4) ◽  
pp. 511-517 ◽  
Author(s):  
Robert F. Grimble
Keyword(s):  
Inflammatory Cytokines ◽  
Inflammatory Cytokine ◽  
Cytokine Production ◽  
The Body ◽  
Morbidity And Mortality ◽  
Metabolic Effects ◽  
Inflammatory Cytokine Production ◽  
Inflammatory Stress ◽  
Wide Range ◽  
The Impact

The objective of the present review is to provide an overview of the metabolic effects of pro-inflammatory cytokine production during infection and injury; to highlight the disadvantages of pro-inflammatory cytokine production and inflammatory stress on morbidity and mortality of patients; to identify the influence of genetics and adiposity on inflammatory stress in patients and to indicate how nutrients may modulate the inflammatory response in patients. Recent research has shown clearly that adipose tissue actively secretes a wide range of pro- and anti-inflammatory cytokines. Paradoxically, although inflammation is an essential part of the response of the body to infection, surgery and trauma, it can adversely affect patient outcome. The metabolic effects of inflammation are mediated by pro-inflammatory cytokines. Metabolic effects include insulin insensitivity, hyperlipidaemia, muscle protein loss and oxidant stress. These effects, as well as being present during infective disease, are also present in diseases with a covert inflammatory basis. These latter diseases include obesity and type 2 diabetes mellitus. Inflammatory stress also increases during aging. The level of cytokine production, within individuals, is influenced by single nucleotide polymorphisms (SNP) in cytokine genes. The combination of SNP controls the relative level of inflammatory stress in both overt and covert inflammatory diseases. The impact of cytokine genotype on the intensity of inflammatory stress derived from an obese state is unknown. While studies remain to be done in the latter context, evidence shows that these genomic characteristics influence morbidity and mortality in infectious disease and diseases with an underlying inflammatory basis and thereby influence the cost of in-patient obesity. Antioxidants andn-3 PUFA alter the intensity of the inflammatory process. Recent studies show that genotypic factors influence the effectiveness of immunonutrients. A better understanding of this aspect of nutrient–gene interactions and of the genomic factors that influence the intensity of inflammation during disease will help in the more effective targeting of nutritional therapy.

Influence of different breathing patterns on heart rate variability indices and reproducibility during experimental endotoxaemia in human subjects

2011 ◽  
Vol 121 (5) ◽  
pp. 215-222 ◽  
Author(s):  
Matthijs Kox ◽  
Jan C. Pompe ◽  
Johannes G. van der Hoeven ◽  
Cornelia W. Hoedemaekers ◽  
Peter Pickkers
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Respiratory Rate ◽  
Spontaneous Breathing ◽  
Breathing Patterns ◽  
Paced Breathing ◽  
Cardiac Autonomic Nervous System ◽  
Wide Range ◽  
Static Conditions ◽  
The Impact

HRV (heart rate variability) analysis is a widely employed method to assess cardiac autonomic nervous system activity. Accurate HRV measurement is critical to its value as a diagnostic and prognostic tool. Different breathing patterns may affect HRV, but results obtained under static conditions are conflicting. HRV indices decrease considerably during systemic inflammation evoked by experimental endotoxaemia, enabling the determination of the effects of different breathing patterns on HRV in a dynamic setting. We investigated the impact of different breathing patterns on short-term HRV measurements during experimental endotoxaemia. Furthermore, we assessed whether paced breathing improved HRV reproducibility. Twelve healthy male volunteers received an intravenous bolus (2 ng/kg of body weight) of endotoxin [LPS (lipopolysaccharide), derived from Escherichia coli O:113] on two occasions with an interval of 2 weeks. Five-minute HRV recordings were performed just prior to LPS administration and hourly thereafter until 8 h post-LPS. Three breathing protocols were employed every hour: (i) spontaneous breathing, (ii) metronome-guided breathing at the subject's normal respiratory rate (‘paced’) and (iii) metronome-guided breathing at 150% of the subject's normal respiratory rate (‘mild hyperventilation’). LPS administration resulted in a sharp decrease in all of the HRV indices measured, which was similar during both LPS administrations. Neither paced breathing nor mild hyperventilation influenced HRV indices compared with spontaneous breathing. Paced breathing did not improve reproducibility as it did not exert a significant effect on intra-subject coefficients of variation and intra-class correlation coefficients (calculated between both visits). In conclusion, over a wide range of HRV magnitudes during experimental endotoxaemia, neither paced breathing nor mild hyperventilation affected HRV indices. Moreover, paced breathing did not result in a significant improvement in reproducibility. Therefore employing a paced breathing protocol is not required to obtain valid HRV data during endotoxaemia.

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