Journal articles: 'Biorhythmus'

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Weschenfelder, F., K. Lohse, UA Müller, E. Schleußner, and T. Groten. "Einfluss des Biorhythmus auf die Insulinreststenz bei Gestationsdiabetikerinnen." Diabetologie und Stoffwechsel 12, S 01 (May 5, 2017): S1—S84. http://dx.doi.org/10.1055/s-0037-1601779.

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Reshetniak, A. О., and D. О. Okun. "Improving the training process of powerlifting athletes, taking into account their biorhythms." Scientific Journal of National Pedagogical Dragomanov University. Series 15. Scientific and pedagogical problems of physical culture (physical culture and sports), no. 4(163) (April 21, 2023): 156–60. http://dx.doi.org/10.31392/npu-nc.series15.2023.04(163).30.

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The problem of biorhythms is one of the most important problems of our time, since the violation of the rhythmic activity of both the body as a whole and its individual organs and systems is of great importance not only for physiology, medicine and valeology, but also for other social and economic processes in modern society. The purpose of the study: to improve the methodology for planning the training process for powerlifting athletes, taking into account their biorhythms. Research methods: analysis of scientific and methodological literature, determination of biorhythms using a computer version, testing taking into account biorhythms, pedagogical experiment and methods of mathematical statistics. The experiment involved 16 qualified athletes aged 16–17 years. As a result of the study, it was revealed that the athletes of the experimental group, who used biorhythm calculations in planning the training load, improved strength indicators by 7,2%, in contrast to the control group, who trained without taking into account the calculation of biorhythms and improved strength results - by 4,6%. Athletes have also been found to exhibit biorhythmic addiction to a greater or lesser extent. It has been established that planning the training process taking into account biorhythms has a positive effect on the result to a greater extent than planning the same load without taking biorhythms into account. The analysis of literary sources showed that the use of biorhythmology data and the use of biological rhythms in planning training loads is not widely used in sports practice today. In the course of the statistical analysis of experimental data, it was found that planning the training process taking into account biorhythms positively affects the result to a greater extent than planning the same load without taking into account biorhythms (р<0,05).

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Датиева, Fatima Datieva, Хетагурова, and Larisa Khetagurova. "Tte temporary organization of hemostasis system and microcirculation rhythms while gestational DIC-syndrome against the background of phytocorrection while the experiment." Vladikavkaz Medico-Biological Bulletin 20, no. 29 (November 1, 2014): 0. http://dx.doi.org/10.12737/11821.

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The state of temporal organization of hemostasis system (HS) and microcirculation (MC) was studied in 72 rats of Wistar line weighted 200-250 gr. They were in 8 groups: intact rats, rats with physiologic pregnancy; with experimental gestosis; prophylactic and treatment-and-prophylactic injections of complex phytoadaptogens – phytococktails “Biorhythm-E” and “Biorhythm-RG”. The analysis of coagulation and microcirculation indices was performed on the 21-st day of gestation. The biorhythms were estimated with the help of “cosinor-analysis” programmer. The reliable ultradian biorhythms prevailed in the intact rats, among which there were rhythms (5%) with high and middle amplitude, with the period of 5-7 hours. The chronic intersystemic pathologic desynchronosis developed while the experimental gestosis. The usage of phytococktail “Biorhythm-E” was more effective while the architectonics of temporal organization impairment at the expense of the part of the reliable circadian rhythms increase while the treatment-and-prophylactic administration. The usage of complex phytoadaptogens promoted the increase of HS and MC adaptation resources, normalizing the impaired architectonics of biological rhythms.

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Kravchenko, Anatolii M., Nataliia M. Pryplavko, Kostiantyn O. Apykhtin, and Olga A. Stelmakh. "Interrelation of daily blood pressure profile with left ventricular myocardial hypertrophy in men of working age with hypertension." Wiadomości Lekarskie 77, no. 5 (2024): 937–42. http://dx.doi.org/10.36740/wlek202405109.

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Aim: To analyze the relationship between daily blood pressure biorhythms and left ventricular myocardial hypertrophy in working-age men with arterial hypertension. Materials and Methods: Fifty-seven men with AH (mean age: 44.6±1.3 years) underwent Echo-CG and daily ABPM. Non-dipper and night-peaker patterns indicated BP biorhythm disturbances, while normal dipper and over-dipper patterns indicated undisturbed BP biorhythms. LVH was defined as LMMI > 115 g/m^2. Results: About 60% of participants exhibited diurnal BP rhythm disorders, with a higher prevalence of LVH in this group compared to those with normal BP biorhythms (32% vs. 22%, p>0,05). Patients with normal daily BP biorhythms had significantly higher circadian indices of HR, systolic and diastolic BP, and double product compared to those with disturbed BP rhythms. Conclusions: In young men with “non-dipper” and “night-peaker” patterns, LVH appears to be more pronounced than in those with normal daily BP biorhythms. This approach may optimize the timing of antihypertensive drug administration.

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Anghel, Alexandru. "USE OF CIRCADIAN RHYTHMS OF LAWN TENNIS PLAYERS IN RELATION TO THEIR PSYCHOMOTOR SKILLS." Annals of Dunarea de Jos University of Galati Fascicle XV Physical Education and Sport Management 2 (November 9, 2023): 13–19. http://dx.doi.org/10.35219/efms.2023.2.02.

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Biorhythm or circadian rhythm represents a biological process through which the human body adopts a rhythmicity, which can be measured once every 24 hours. An analytical analysis of human biorhythms and their interaction in the synergy of psychomotor capabilities of lawn tennis players was performed. The reliability of performances in official competitions is conditioned by the integral preparation of the athlete, the components of which are optimal technical and tactical, physical, functional and mental training, taking into account the manifestation of his biorhythms. Biorhythmology is currently of great theoretical and practical importance in sports training. However, certain principles and provisions of biorhythmology in sports are insufficiently highlighted and scientifically justified, but, without a doubt, research in this direction gives the expected practical result. A series of aspects of psychophysiology are highlighted, the solution of which largely depends on the success of using biorhythms to increase the efficiency of sports activities. The dynamics of the circadian rhythms of the psychophysiological functions are reflected in the volume and intensity of the applied training and competition tasks, as well as in the physical recovery after their performance. In order to identify the relationship between biorhythms and sports and psychomotor performances of athletes, we analyzed the results obtained in competitions by tennis students (the best and worst of the season). The analysis of the obtained results showed that the best sports and test results are presented by tennis players during the optimal phases of the biorhythm, and the worst - during critical periods. It is necessary to take into account the characteristics of the biorhythm when predicting and analyzing the performances of athletes in certain competitions and the test parameters that characterize their psychomotor capabilities as determining factors of sports and tactical abilities. It has been established that psychomotor indices and sports performance of tennis players are interconnected with the periods of biorhythms. In the negative period and on the critical days, the greatest decrease in the reactions to the moving object (RMO) was observed, the decrease in the state-impact force, which provides the force of the deep (postural) muscles of the trunk, involved in maintaining both statodynamic and dynamic, one of the factors of motor-coordinating qualities of tennis players.

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Zotin, Alexey A., Svetlana A. Murzina, and Evgeny P. Ieshko. "Growth biorhythms in the freshwater pearl mussel Margaritifera margaritifera (Bivalvia, Margaritiferidae). Livojoki river population (Karelia)." Knowledge & Management of Aquatic Ecosystems, no. 419 (2018): 44. http://dx.doi.org/10.1051/kmae/2018033.

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Individual linear growth rates were studied in freshwater pearl mussels Margaritifera margaritifera from the Livojoki River. Growth deceleration coefficients were shown to vary widely and differ significantly among individuals. The average value of the growth deceleration coefficient for the population is 0.060. The growth of mussels in the Livojoki River is accompanied by two regular biorhythms. These biorhythm periods were roughly constant both through an individual's ontogeny and among mussels, their average periods were 7.16 and 4.09 years. We discuss the possibility that these biorhythms are of thermodynamic nature.

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Bee, Kang Gyu, and Jeon Ye Won. "IMPLEMENTATION OF BIORHYTHM GRAPH WITH TRIGONOMETRIC FUNCTIONS USING PYTHON." MATTER: International Journal of Science and Technology 9, no. 1 (July 15, 2023): 66–73. http://dx.doi.org/10.20319/mijst.2023.91.6673.

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This study aimed to implement the researcher's biorhythm graph using a programing language called Python in relation to trigonometric functions. The etymology of biorhythm is a combination of two Greek words, Bio, which means life, and Rhythm, which means regular and accurate rhythm, and means the rules of human life rhythm. In other words, the biorhythm is a theory that everyone is governed by three rhythm curves called physical rhythm, emotional rhythm, and intellectual rhythm that start inside the body from birth to death. During this study, biorhythm and trigonometric functions were studied, and biorhythm graphs were implemented with trigonometric functions when the researcher's date of birth was entered through Python. A biorhythm graph was implemented based on Python, the most used programming language. The Python syntax used in the algorithm is typically a sympy function, a datetime function, arrange function, and a function. The value obtained after implementing the algorithm using this grammar is as follows. This is the result of implementing a biorhythm graph using the algorithm implemented by the two researchers. This paper can be used in various fields related to the relationship between biorhythms and trigonometric functions.

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Bee, Kang Gyu, and Jeon Ye Won. "Implementation of Biorhythm Graph with Trigonometric Functions using Python." MATTER: International Journal of Science and Technology 9 (July 15, 2023): 66–73. http://dx.doi.org/10.20319/mijst.2023.9.6673.

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This study aimed to implement the researcher's biorhythm graph using a programing language called Python in relation to trigonometric functions. The etymology of biorhythm is a combination of two Greek words, Bio, which means life, and Rhythm, which means regular and accurate rhythm, and means the rules of human life rhythm. In other words, the biorhythm is a theory that everyone is governed by three rhythm curves called physical rhythm, emotional rhythm, and intellectual rhythm that start inside the body from birth to death. During this study, biorhythm and trigonometric functions were studied, and biorhythm graphs were implemented with trigonometric functions when the researcher's date of birth was entered through Python. A biorhythm graph was implemented based on Python, the most used programming language. The Python syntax used in the algorithm is typically a sympy function, a datetime function, arrange function, and a function. The value obtained after implementing the algorithm using this grammar is as follows. This is the result of implementing a biorhythm graph using the algorithm implemented by the two researchers. This paper can be used in various fields related to the relationship between biorhythms and trigonometric functions.

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Hirschwald, Barbara, Annette Nold, Frank Bochmann, Thomas Heitmann, and Yi Sun. "Chronotyp, Arbeitszeit und Arbeitssicherheit." Zentralblatt für Arbeitsmedizin, Arbeitsschutz und Ergonomie 70, no. 5 (April 30, 2020): 207–14. http://dx.doi.org/10.1007/s40664-020-00397-4.

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Zusammenfassung Hintergrund und Zielsetzung Viele Arbeitszeitregelungen greifen in den Biorhythmus der Beschäftigten ein und wirken sich negativ auf Konzentration und Schlafqualität aus. Schichtarbeitende leiden doppelt so häufig an Schlafstörungen wie andere Erwerbstätige. Schlafmangel und gestörter Schlaf erhöhen das Unfallrisiko. In dieser Studie wurde untersucht, ob die Schlafdauer von der Lage der Arbeitszeit und vom individuellen Chronotyp beeinflusst wird. Methode In einer Querschnittsuntersuchung wurden 374 Beschäftigte mit meldepflichtigem Arbeitsunfall zu ihrem Chronotyp und ihren üblichen Schlafenszeiten befragt. Zur Chronotypermittlung wurde die Composite Scale of Morningness (CSM) in der deutschsprachigen Version verwendet. Die Effekte von Schichtarbeit, Chronotyp und Alter auf die Schlafdauer wurden mittels multivariabler linearer bzw. logistischer Regression untersucht. Ergebnisse Ohne Schichtarbeit (Tagarbeitszeiten [TA]) betrug die durchschnittliche Schlafdauer an Arbeitstagen 7,2 h (SD 0,9). Vor einer Frühschicht (FS) war die Schlafdauer verkürzt auf 6,4 h (SD 0,6). Ein früher Arbeitsbeginn ist ein Risikofaktor für eine kurze Schlafdauer (<7 h) vor FS Odds Ratio (OR) = 13,8 (95 % Konfidenzintervall [KI] 3,38–56,25) im Vergleich zu einem späten Arbeitsbeginn (Spätschicht). Ein später Chronotyp erhöht ebenfalls das Risiko für kurze Schlafdauer an Arbeitstagen OR = 2,7 (95 % KI 0,97–7,67). An arbeitsfreien Tagen haben Frühtypen eine signifikant kürzere Schlafdauer als Intermediärtypen OR = 2,2 (95 % KI 1,16–4,31). Diskussion Ein späterer und flexibler Arbeitsbeginn unter Einbeziehung des Chronotyps sowie Maßnahmen für gesundheitsförderlichen Schlaf könnten dazu beitragen, müdigkeitsbedingte Arbeitsunfälle zu verhindern.

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Yevtushenko, Iryna, Olena Butok, Olena Otroshko, and Andriy Storozhenko. "Accounting for an individual approach to training of athletes in playing sports (on the example of basketball, volleyball and futsal)." Human and nation's health 1, no. 1 (December 1, 2023): 21–36. http://dx.doi.org/10.31548/humanhealth.1.2023.21.

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The article is devoted to the study of ways to optimize the training process for student basketball, volleyball and futsal teams, taking into account the individual biorhythmic properties of female athletes. The study determines the importance of individualizing training and preparation, in particular, taking into account circadian rhythms and other biorhythmic aspects that determine physiological and psychological changes in female athletes during the day. The tasks of the study included testing the biological rhythms of female athletes to improve the training process. 36 sportswomen (14 basketball players, 12 volleyball players, 10 soccer players) of the teams of the National University of Life and Environmental Sciences of Ukraine took part in the study. The analysis of the biological rhythms of female athletes included various indicators that help to understand their physiological reactions and determine the optimal schedule of training and rest. Among them were taken: heart rate, rhythmic changes in body temperature (measurement of body temperature during the day to determine the circadian rhythm of heat exchange), rhythmic changes in blood pressure (observation of changes in blood pressure during the day to determine the circadian rhythm of cardiovascular activity), indicators of activity and sleep (determination of activity and sleep mode, including time of awakening, time of falling asleep and duration of sleep), hand strength (hand dynamometry), standing long jump. The article examines the results of the study, which include an analysis of the optimal time for training, fatigue and recovery management, adaptation of training programs to biorhythms, and the impact on psychological readiness. The conclusions drawn indicate that an individual approach to training, based on biorhythmic properties and psychomotor qualities, can improve the performance of sportswomen in the aforementioned teams. This article is aimed at coaches, scientists and physical training specialists interested in innovative methods of training female athletes aimed at taking into account their individual biorhythms to achieve optimal results in basketball, volleyball and futsal.

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Gibson, Dale. "Constitutional Biorhythms." Canadian Review of American Studies 17, no. 3 (September 1986): 375–80. http://dx.doi.org/10.3138/cras-017-03-11.

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Царева, Ю. О., and Ю. Г. Шварц. "Importance of Biorhythms and early thyroid Dysfunction in Development of Cardiovascular Pathology (Literature Review)." Кардиология в Беларуси, no. 1 (April 7, 2020): 115–24. http://dx.doi.org/10.34883/pi.2020.12.1.010.

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В обзоре рассмотрена проблема сочетанной патологии щитовидной железы и сердечно-сосудистой системы, которая в настоящее время наблюдается достаточно часто. Представлены особенности течения кардиоваскулярных заболеваний при субклинической дисфункции щитовидной железы. Освещена теория об изменении суточных ритмов секреции тиреоидных гормонов как начальных проявлений нарушения функции щитовидной железы. В настоящее время отмечается возрастание интереса к изучению биоритмов организма и их изменений при формировании той или иной патологии. В связи с этим особое внимание уделяется роли клеточных, гуморальных механизмов регуляции биологических ритмов и их влияния на развитие и течение сердечно-сосудистых заболеваний. Приведены экспериментальные данные, результаты пилотных и проспективных исследований, посвященных изменениям биоритмов у пациентов с ишемической болезнью сердца, фибрилляцией предсердий, хронической сердечной недостаточностью. Описываются особенности ритмической деятельности щитовидной железы при сердечно-сосудистой патологии. В заключении указывается, что более глубокое изучение индивидуальных биоритмических особенностей организма помогло бы получить дополнительное представление о механизмах развития и прогрессирования заболеваний и создать перспективы для внедрения новых эффективных методов лечения. We considered the problem of the combined pathology of the thyroid gland and the cardiovascular system, which is currently quite often observed. The main features of cardiovascular diseases in subclinical thyroid dysfunction are presented. The authors highlighted the theory of changes in the daily rhythms of secretion of thyroid hormones as the initial manifestations of thyroid dysfunction. Currently, there is the increase of interest in the study of biological rhythms and their changes in the pathology. Special attention was paid to the role of cellular and humoral mechanisms of regulation of biorhythms and their influence on the development and progression of cardiovascular diseases. There are presented the results of experimental evidences, pilot and prospective studies on biorhythmic changes among patients with coronary heart disease, atrial fibrillation, and chronic heart failure. The features of the rhythmic activity of the thyroid gland in cardiovascular pathology are described. In conclusion, the authors indicate that a deeper study of the individual biorhythmic characteristics would help to introduce an additional view of the mechanisms of development and progression of diseases and create prospects for introducing new effective methods of treatment.

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da Silva, Martins, C. D. Binnie, I. H. Meinard, and Ronald Lesser. "Biorhythms and Epilepsy." Therapeutic Drug Monitoring 8, no. 2 (June 1986): 247. http://dx.doi.org/10.1097/00007691-198606000-00025.

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Fenwick, P. "Biorhythms and Epilepsy." Journal of Neurology, Neurosurgery & Psychiatry 49, no. 6 (June 1, 1986): 731. http://dx.doi.org/10.1136/jnnp.49.6.731-a.

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Daly, David D. "Biorhythms in Epilepsy." Journal of Clinical Neurophysiology 3, no. 3 (July 1986): 268. http://dx.doi.org/10.1097/00004691-198607000-00005.

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Meldrum, B. S. "Biorhythms and Epilepsy." Neurochemistry International 10, no. 1 (January 1987): 128. http://dx.doi.org/10.1016/0197-0186(87)90186-0.

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Hughes, John R. "Biorhythms and epilepsy." Electroencephalography and Clinical Neurophysiology 63, no. 4 (April 1986): 390–91. http://dx.doi.org/10.1016/0013-4694(86)90027-1.

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Порядин, Г. В., Ж. М. Салмаси, and Ю. В. Шарпань. "Pathophysiology of biorhythms." Zhurnal «Patologicheskaia fiziologiia i eksperimental`naia terapiia», no. 2 (May 31, 2022): 108–16. http://dx.doi.org/10.25557/0031-2991.2022.02.108-116.

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Актуальным вопросом для специалистов самых разных клинических дисциплин является совершенствование подходов к диагностике и лечению широкого круга заболеваний, в патогенезе которых большую роль играет рассогласованность циклических процессов, управляемых внутренними и внешними ритмогенными детерминантами. Цель лекции - представление накопленных к настоящему времени знаний о физиологии и патофизиологии биоритмов, причинах и последствиях десинхронозов. An urgent challenge for various clinical specialists is improving approaches to the diagnosis and treatment of multiple diseases, which pathogenesis includes a mismatch of cyclic processes controlled by internal and external rhythmogenic determinants. The purpose of this lecture was to present the current knowledge about physiology and pathophysiology of biorhythms as well as and about the causes and consequences of desynchronosis.

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Zarubin, V. "CHRONOPHYSIOTHERAPY – A NEW DIRECTION IN MEDICAL BIOPHYSICS." Russian Journal of Biological Physics and Chemisrty 8, no. 2 (May 21, 2024): 199–202. http://dx.doi.org/10.29039/rusjbpc.2023.0609.

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The study is aimed at solving the issues of increasing the efficiency and safety of treatment for a wide range of diseases based on the developed chronobiological approach to managing the functional state of the body. The approach is based on the following chronobiological patterns: 1. the principle of the rhythm of biological processes in living organisms; 2. the principle of conjugation of bioprocesses and their biorhythms; 3. the principle of chrono-management of living organisms by regulating their biorhythms; 4. the phenomenon of assimilation of external rhythms by living organisms. According to the principle of rhythm, all biological processes in the body have their own biorhythms. This means that bioprocesses and their biorhythms are interdependent and obey the conjugation principle. Therefore, in case of a disease, a violation of bioprocesses in the body is accompanied by a deviation of their biorhythms from the norm – desynchronosis. From this it follows that it is possible to treat diseases not only by pharmacotherapy methods by restoring disturbed bioprocesses, but also by chronophysiotherapy methods by correcting their biorhythms and eliminating desynchronosis. This is the principle of chrono-management of living organisms. However, at present, there is no hardware methods for the treatment of desynchrony on the therapy market. To implement this principle, based on the phenomenon of mastering external rhythms and the principle of conjugation of bioprocesses and their biorhythms, a technology of chronophysiotherapy has been developed. Chronotechnology includes a method of resynchronizing physiotherapy of biorhythms of a sick organism and a chronophysiotherapy apparatus. The frequency component of the EMF is used as an external synchronizer. The apparatus simultaneously implements two treatment functions: chronotherapy and magnetotherapy. The function of chronotherapy implements the developed method of treatment, the therapeutic factor of which is the frequency of EMF from the corresponding range of biorhythms of a healthy organism. And the function of magnetotherapy implements an auxiliary method, the therapeutic factor of which is the magnetic component of the EMF. The device has no side effects on the body and as a result of complex chronomagnetic therapy, the effectiveness of treatment on it reaches 95%.

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Babich, T. M. "The role of biorhythms in ensuring human life activities and their effects on the mental and physical activity of students." Scientific Journal of National Pedagogical Dragomanov University. Series 15. Scientific and pedagogical problems of physical culture (physical culture and sports), no. 2(174) (February 17, 2024): 29–32. http://dx.doi.org/10.31392/udu-nc.series15.2024.2(174).07.

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Annotation. In the modern world, more and more people are interested in their health and are looking for ways to improve their quality of life. One of them is the study of biorhythms and their influence on human health. Biorhythms are cyclic physiological processes that occur in our body, and they can have an important impact on our physical and mental health. Human biological rhythms are interesting primarily because the maximum and minimum activity of various biological processes do not coincide in time. Of all the cycles found in humans, the most studied was the daily cycle as the main one. The biological clock, triggered by the change of day and night, carries about 50 rhythms that change their characteristics from day to night. All body rhythms are subject to hierarchical dependence — they are divided into leading (main) and subordinate. The biorhythms of the central nervous system are leading. The reason for their «leadership» is clear: they are responsible for communication with the surrounding environment, the safety of the organism depends on the degree of their readiness and ability to respond adequately to the influence of the environment. The study aims to determine the impact on human biorhythms for physical training for improvement of the educational process during physical education lessons. This paper considers the classification and characterization of human morphology, basic biorhythms of living organisms, including the process of human development in all aspects of life. The subject of research is the influence of biorhythms on the formation of human development. Attention is also paid to physical, physiological, genetic, intellectual, emotional, psychological, social adaptive stages and meanings, mechanisms of regulation; as well as – disorders of biorhythms, methods of treatment and prevention.

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Minkevich, A. I., R. V. Yunusov, S. Z. Gabitov, and A. L. Storozhev. "Biorhythms and myocardial infarction." Kazan medical journal 68, no. 2 (April 15, 1987): 133–34. http://dx.doi.org/10.17816/kazmj96050.

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The aim of our research was to find the dependence of myocardial infarction occurrence on the critical days and phases of three macrorhythms: physical, emotional and intellectual. The following dates were taken for comparison - day, month, year of birth and date, month, year of myocardial infarction occurrence.

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Thomas, Karen. "Biorhythms in the Nursery." Journal of Perinatal & Neonatal Nursing 21, no. 2 (April 2007): 89–90. http://dx.doi.org/10.1097/01.jpn.0000270622.87454.e1.

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Soroka, Olena, and Andriy Herashchenko. "USE OF HUMAN BIORHYTHMS TO IMPROVE THE WATER TRANSPORT SAFETY MANAGEMENT SYSTEM." Grail of Science, no. 35 (January 27, 2024): 443–57. http://dx.doi.org/10.36074/grail-of-science.19.01.2024.081.

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In the modern world of the transport industry, it is important to implement new technologies and innovations to ensure safety and work efficiency. One of the pages of this challenge is the possible use of biorhythms in shipping companies. This article examines the advantages and disadvantages of such an approach, and also identifies the potential effectiveness of the implementation of biorhythms to increase the level of safety and optimize the operation of maritime and inland waterway transport. One of the key benefits could be the adaptation of crews' work schedules to their natural biological rhythms, helping to reduce the risks of fatigue and errors. On the other hand, there are certain challenges associated with the use of biorhythms in transport, such as individual differences in biological cycles and technical aspects of implementing such systems. In this context, our analysis will highlight different aspects of the use of biorhythms in shipping companies, offering readers a deeper understanding of the opportunities and challenges of this innovative approach to managing the safety and efficiency of water transport.

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Astashev, Maxim E., Dmitriy A. Serov, and Sergey V. Gudkov. "Application of Spectral Methods of Analysis for Description of Ultradian Biorhythms at the Levels of Physiological Systems, Cells and Molecules (Review)." Mathematics 11, no. 15 (July 27, 2023): 3307. http://dx.doi.org/10.3390/math11153307.

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The presence of biological rhythms is a characteristic of all living organisms. Over the past 60 years, scientists around the world have accumulated a huge amount of data on rhythmic processes in living systems at various levels. The acquired knowledge has found applications in human economic activity and medicine. The ultradian (less than a day) rhythms at the organismal, organ, and cellular levels are characterized by high diversity. Unfortunately, biorhythms in different systems are considered, most often, in isolation from each other. Much knowledge about biorhythms was obtained using expert evaluation methods, and later methods of spectral analysis were used to describe biorhythms. Ultradian rhythms have a relatively short duration; therefore, they can be characterized by spectral analysis methods. More and more researchers believe that in order to further expand the understanding of the nature and purpose of biorhythms, the use of more advanced methods of mathematical processing is required, and rhythms in different organs, tissues, and cells should be considered parts of a single system. This review is intended to provide the reader with the variety of ultradian rhythms in living systems (organismal, organ, cellular, molecular levels), the mechanisms of their generation, and their functions to give the reader a picture of the possible relationships between these rhythms. Further, the reader will be able to get acquainted with the variety of mathematical methods for analyzing biorhythms, including bispectral and cross-correlation analyses.

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Lyashuk, P. M., and V. V. Pishak. "I. I. Dedov, V. I. Dedov. Hormonal Biorhythms." Problems of Endocrinology 40, no. 1 (February 15, 1994): 58–59. http://dx.doi.org/10.14341/probl11342.

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There are many different, mostly popular, sometimes sensational publications dedicated to biorhythms in our lives. The peer-reviewed monograph summarizes literature data and the results of our own studies on the nature of the rhythmic functioning of various parts of the neuroendocrine system and the role of hormone biorhythms in the development of endocrinopathies. The authors went beyond the title of the book, since biorhythms are only a special case of a wider dependence of life processes on time. The monograph consists of a preface, introduction, 4 chapters, conclusion and list of references. The introduction substantiates the relevance of the topic and clearly defined tasks. The material of each chapter is presented at the modern level of knowledge with an analysis of extensive, mainly foreign, literature.

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Кострова, Ирина, Irina Kostrova, Ольга Приходько, Olga Prikhodko, Светлана Горячева, and Svetlana Goryacheva. "STATE OF CIRCADIAN RHYTHMS OF LUNG FUNCTION IN PATIENTS WITH SEVERE CHRONIC OBSTRUCTIVE PULMONARY DISEASE." Bulletin physiology and pathology of respiration 1, no. 66 (December 26, 2017): 14–17. http://dx.doi.org/10.12737/article_5a1f6270ce0570.73479912.

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Investigation of timing organization of lung function in patients with chronic obstructive pulmonary disease of different severity is an important problem in the diagnosis of desynchronosis. We aimed to study circadian rhythms of lung function in patients with severe chronic obstructive pulmonary disease. As a result, not only quantitative, but also qualitative disorders of lung function were revealed. There were registered three types of biorhythms: day, evening and morning. Minimum values of lung function parameters were recorded in patients with pathological morning type of biorhythms. In patients with the severe course against the background of lower medians of spirographic indices, statistically significant differences were also revealed in patients with day and evening types of biorhythms, which indicated a decrease in the adaptive capabilities of the respiratory system.

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Anghel, Alexandru. "STUDY OF THE PSYCHOMOTOR ABILITIES AND QUALITIES OF THE STUDENTS CONDITIONED BY BIORYTHMS AND THEIR PERSONAL AND PSYCHOLOGICAL CHARACTERISTICS." Annals of Dunarea de Jos University of Galati Fascicle XV Physical Education and Sport Management 2 (November 9, 2023): 20–31. http://dx.doi.org/10.35219/efms.2023.2.03.

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One of the most important problems of modern science is the search for new reserves aimed at increasing the efficiency of educational, work and training activities by using biological rhythms. The temporal sequence of interaction of various functional systems of the body with the environment, developed in the course of evolution, contributes to the harmonious coordination of various biological processes and ensures the normal functioning of the entire organism. This reveals the important adaptive value of biorhythms for the body's vital functions. However, certain principles and provisions of biorhythms in sports are insufficiently highlighted and scientifically justified, but without a doubt, scientific research in this direction brings the expected practical result. We also mention the problems of psychophysiology, the solution of which largely depends on the success of using biorhythms to improve the efficiency of sports and students learning activities [1]. The dynamics of the circadian rhythmicity of the psychophysiological functions is reflected in the volume and intensity of the applied training and competition tasks, as well as in the performance recovery after performing them. Three biorhythms are known that significantly influence human performance: physical, emotional and intellectual ones.

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Afonin, Aleksey. "Infradian rhythms of increment dynamics of shoots in clones of almond willow (Salix triandra, Salicaceae)." Agrarian Bulletin of the 205, no. 02 (April 23, 2021): 2–11. http://dx.doi.org/10.32417/1997-4868-2021-205-02-2-11.

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Abstract. Purpose of research – harmonic analysis of the structure of seasonal dynamics of daily increment of shoots in almond willow (Salix triandra) clones. Research methodology and methods. Object is a model population created by cuttings of sibs-seedlings from the same family obtained by regular inbreeding over three generations. Material – growing long shoots. Experimental group: seven clones of one-year saplings from cuttings; 6-fold repetition. Control group – seedlings from the same family on their own roots of the fourth year of life. Methods: comparative morphological, chronobiological, numerical analysis of time series. Observations were made during the growing season of 2020. Results. The beginning of the growth of shoots – the end of the first decade of May. The maximum daily increase is in early summer (06.06…14.06). Further, the daily growth decreased unevenly until the end of August. Seasonal dynamics of daily increment is determined by the interaction of linear and nonlinear components. Linear components determine the seasonal trend of daily increment dynamics. They are approximated by the corresponding regression equations with different reliability. Nonlinear components determine the cyclical nature of the seasonal dynamics of daily increment. They are approximated by sums of harmonics with an oscillation period of 9–144 days with very high reliability. Scientific novelty. The cyclical nature of the seasonal dynamics of daily increment is determined by the interaction of biorhythms with different periods. Subannual biorhythms with a period of more than 48 days correct seasonal trends of daily increment. Infradian biorhythms with a period of 9...36 days determine the alternation of peaks and dips in the seasonal dynamics of daily increment. Biorhythms with a period of 29...36 days were synchronized in the experimental and control groups, but shifted in phase when comparing the experiment and control. Biorhythms with a period of 21...24 days are synchronized on all the researched shoots. Biorhythms with a period of 9…18 days are not synchronized, but their resulting fluctuations affect the dynamics of daily increment at the beginning and end of the growing season.

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Kachlík, Petr. "Human biorhythms and their importance." Tělesná kultura 40, no. 1 (June 30, 2017): 23–32. http://dx.doi.org/10.5507/tk.2017.001.

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Berger, Josef. "Why do circadian biorhythms age?" Journal of Applied Biomedicine 1, no. 2 (July 31, 2003): 77–84. http://dx.doi.org/10.32725/jab.2003.012.

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Neudakhin, E. V. "Chronotherapy in pediatrics is the basis for improving the effectiveness of treatment of children`s diseases." Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics) 63, no. 6 (December 29, 2018): 7–14. http://dx.doi.org/10.21508/1027-4065-2018-63-5-7-14.

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The article briefly describes the general ideas on the body’s biorhythms determining the essence of its homeostasis. The article pays special attention to the importance of alternative interaction of the body's reactions in the formation of biorhythms. It is emphasized that the violation of biorhythms (desynchronosis) is the most profound and most sensitive marker of functional disorders. In this regard, the practicing doctors should use methods of chronodiagnosis and chronotherapy more widely. The article presents the authors’ data and the data of other authors on the high efficiency of chronotherapy. This method, focused on the individual approach to the treatment of a child, makes it possible to increase the effectiveness of treatment while decreasing usage of drugs. The future of medicine is impossible without a chronobiological understanding of its problems.Conflict of interest: The author of this article confirmed the lack of conflict of interest and financial support, which should be reported.

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Sivaprasad, S, Sivaprasad, S. "Circadian Biorhythms – Present Understanding and Status of Research." Indian Journal of Applied Research 4, no. 3 (October 1, 2011): 512–16. http://dx.doi.org/10.15373/2249555x/mar2014/160.

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Afonin, A. "Seasonal Dynamics of Internodes Length of the Shoots of Salix dasyclados Wimm. (Salicaceae Mirb.) Against the Background of Early Summer Drought Stress." Bulletin of Science and Practice 6, no. 9 (September 15, 2020): 18–36. http://dx.doi.org/10.33619/2414-2948/58/02.

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The article substantiates the need to study the influence of hydrothermic conditions on the linear growth of shoots of woolly-stemmed willow. Purpose of research: identification and analysis structure of seasonal dynamics of internodes length of the shoots of S. dasyclados against the background of short atmospheric drought. Object of research: model inbred-clone population of S. dasyclados. Material: growing and matured annual shoots on two-year-old roots. Research methods: empirical methods of experimental botany, computer technologies of data analysis. Results. Against the background of the change of the early summer drought by cool rainy weather, the annual growth of the strongest shoots was 1.3 ... 2.5 m. The average length of internodes on the shoot varied from 23 to 31 mm. Seasonal dynamics of internode length can be approximated by linear trends in the first approximation. The deviations of the internode length from linear trends are nonlinear and are approximated by the equations of harmonic oscillations with a period of 96 ... 192 days. The strength of the influence of these harmonics on the seasonal dynamics of deviations of the internode length from linear trends is 2 ... 54%. The cyclicity of seasonal dynamics of deviations of internode length from linear trends is established. The revealed cyclicity is determined by the interaction of endogenous subannual and infradian biorhythms. Subannual biorhythms are approximated by harmonic oscillations with a period of 48 (64) days. The contribution of these biorhythms to the overall cyclicity is 23 ... 76%. Multi-day, or infradian biorhythms are approximated by harmonic oscillations with a period of 19 … 24 (32) days. The contribution of these biorhythms to the overall cyclicity is 3 ... 35%. High-frequency oscillations with a period of 12 ... 16 days are disordered. Differences between series of seasonal dynamics of internode length are determined by differences between shoots of a single ramet, between different ramets, and between different clones. The influence of from early summer drought stress on the seasonal dynamics of internode length has not been established.

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Hines, Terence M. "Comprehensive Review of Biorhythm Theory." Psychological Reports 83, no. 1 (August 1998): 19–64. http://dx.doi.org/10.2466/pr0.1998.83.1.19.

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Biorhythm theory which became popular with the general public in the late 1960s held that three different biorhythm cycles influenced three different general aspects of human behavior. There was a 23-day cycle which influenced physical aspects of behavior. A 28-day cycle influenced emotions and a 33-day cycle influenced intellectual functions. Further, according to the theory, these three cycles started at birth and progressed, sinusoidally, throughout life varying not a bit with environmental or physiological factors. This paper reviews 134 studies of biorhythm theory, both published and unpublished. 35 of those reported some support for biorhythm theory. Careful examination of these studies identified methodological and statistical errors that account for the claimed findings supporting the theory. Another 99 studies, covering many different variables, yielded no support. The conclusion is that biorhythm theory is not valid.

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Bulla, Martin, Thomas Oudman, Allert I. Bijleveld, Theunis Piersma, and Charalambos P. Kyriacou. "Marine biorhythms: bridging chronobiology and ecology." Philosophical Transactions of the Royal Society B: Biological Sciences 372, no. 1734 (October 9, 2017): 20160253. http://dx.doi.org/10.1098/rstb.2016.0253.

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Marine organisms adapt to complex temporal environments that include daily, tidal, semi-lunar, lunar and seasonal cycles. However, our understanding of marine biological rhythms and their underlying molecular basis is mainly confined to a few model organisms in rather simplistic laboratory settings. Here, we use new empirical data and recent examples of marine biorhythms to highlight how field ecologists and laboratory chronobiologists can complement each other's efforts. First, with continuous tracking of intertidal shorebirds in the field, we reveal individual differences in tidal and circadian foraging rhythms. Second, we demonstrate that shorebird species that spend 8–10 months in tidal environments rarely maintain such tidal or circadian rhythms during breeding, likely because of other, more pertinent, temporally structured, local ecological pressures such as predation or social environment. Finally, we use examples of initial findings from invertebrates (arthropods and polychaete worms) that are being developed as model species to study the molecular bases of lunar-related rhythms. These examples indicate that canonical circadian clock genes (i.e. the homologous clock genes identified in many higher organisms) may not be involved in lunar/tidal phenotypes. Together, our results and the examples we describe emphasize that linking field and laboratory studies is likely to generate a better ecological appreciation of lunar-related rhythms in the wild. This article is part of the themed issue ‘Wild clocks: integrating chronobiology and ecology to understand timekeeping in free-living animals’.

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Cooke, Hannah M., and Agnes Lynch. "Biorhythms and chronotherapy in cardiovascular disease." American Journal of Health-System Pharmacy 51, no. 20 (October 15, 1994): 2569–80. http://dx.doi.org/10.1093/ajhp/51.20.2569.

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Hogg, Russell T., Laurie R. Godfrey, Gary T. Schwartz, Wendy Dirks, and Timothy G. Bromage. "Lemur Biorhythms and Life History Evolution." PLOS ONE 10, no. 8 (August 12, 2015): e0134210. http://dx.doi.org/10.1371/journal.pone.0134210.

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Devika k, Anandalakshmy K N, and Ajitha k. "Harmonizing health through Biorhythms: Ayurvedic insight." International Journal of Biological and Pharmaceutical Sciences Archive 7, no. 1 (March 30, 2024): 077–84. http://dx.doi.org/10.53771/ijbpsa.2024.7.1.0023.

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Biological rhythms that sustain life exhibit periodic fluctuations in response to environmental changes. In the absence of external inputs, rhythms are maintained by this internal mechanism. Three primary types of rhythms can be distinguished: Circadian, Ultradian, and Infradian. The Tridosha theory, which forms the basis of Ayurveda, has a deep and innate relationship with the concept of biological rhythms. These rhythms are closely associated with an Ayurvedic theory called "Loka Purusha Samya Siddhanta," which postulates that humans are miniature of the cosmos. Understanding the cyclical variations associated with Tridoshas, Agni, and Sharira Bala concerning variables such as age, time of day, seasonal variations, and nutrition is the foundation of Ayurveda. To maintain maximum health, aligning with this natural cycle is imperative. Breaking from it can lead to a variety of mental and physical ailments. Ayurveda recommends activities like dinacharya, ritucharya, sadvritta, and ahara vidhis, as well as seasonal sodhana procedures and acharya rasayana to maintain the rhythmic balance of doshas in a healthy state. This review paper examines biological rhythm from contemporary and Ayurvedic perspectives. It addresses the physiological and pathological characteristics of these rhythms and their significance in the treatment and prevention of disorders associated with them.

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Afonin, Alexey A. "Infradian rhythms of daily shoot increment in Salix viminalis (salicaceae) clones." Bulletin of Nizhnevartovsk State University, no. 2 (54) (June 20, 2021): 12–22. http://dx.doi.org/10.36906/2311-4444/21-2/02.

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The structure of seasonal dynamics of daily growth of shoots of basket willow (Salix viminalis) is described and analyzed. Object: model inbred-clone population of S. viminalis. Material: developing shoots on annual saplings from cuttings. Methods: comparative morphological, chronobiological, numerical analysis of time series. The formation of dimorphic root systems of one-year saplings from cuttings is described. It is established that the seasonal dynamics of daily increment of shoots is determined by the interaction of linear and nonlinear components. Linear components are approximated by regression equations, and nonlinear components are approximated by harmonic oscillation equations. The rhythmicity of seasonal dynamics of shoot growth is described. Four groups of biorhythms were identified: annual with a period of about 96 days, subannual with a period of 4064 days, and infradian with a period of 1924 days and infradian with a period of 1016 days. The alternation of peaks and dips in the seasonal dynamics of shoot increment is determined by infradian biorhythms with a period of 19...24 days. Infradian biorhythms with different periods are synchronized with each other. The probable reason is the existence of a pulse synchronizer of biorhythms. Interclonal differences in the seasonal dynamics of the daily growth of shoots were not revealed. The probable cause of intraclonal differences is the ontogenetic heterogeneity of vegetative buds, from which annual shoots have developed. To verify this hypothesis, we plan to observe the development of seedlings grown from cuttings harvested from different parts of the uterine shoots. The results obtained are recommended to be taken into account when planning agroforestry measures for crop of S. viminalis.

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Marktl, W. "Biorhythmen und geschlechtliche Unterschiede." Manuelle Medizin 51, no. 1 (January 20, 2013): 33–34. http://dx.doi.org/10.1007/s00337-012-0993-5.

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Fedortsov, A. B., and M. O. Silivanov. "Physiologically based control of the process of gentle light awakening." Journal of Physics: Conference Series 2127, no. 1 (November 1, 2021): 012064. http://dx.doi.org/10.1088/1742-6596/2127/1/012064.

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Abstract The well-being of a person and the efficiency of his production activities are largely determined by the correspondence of the biorhythms of a person to his working schedule. As it was established at the molecular and genetic level, the main physical factor that allows us to control human biorhythms is light (Nobel Prize 2017). Modern studies of ophthalmologists have found a third type of photoreceptors in human eyes, in addition to rods and cones. These receptors are not intended for receiving images, but primarily for correcting biorhythms, including controlling the process of awakening. The third type of receptors are sensitive mainly in the short-wave, blue region of the visible spectrum. In recent years light-emitting diodes have appeared. However, these devices do not take into account the current requirements for the spectrum of the awakening radiation, and even more so do not allow it to be adjusted during the awakening process according to the necessary program. We offer a technology for gentle awakening of the employee, based on modern concepts of ophthalmology and biorhythmology. The technology uses computer control of the physical factors of awakening-light and sound.

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Aminvaziri, Soma, and Mansour Irandoost. "Surveying Relationship between Biorhythm and Making Error in Buying Stock in Tehran Stock Exchange." International Letters of Social and Humanistic Sciences 64 (November 2015): 126–32. http://dx.doi.org/10.18052/www.scipress.com/ilshs.64.126.

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Biorhythm is defined as any repeated pattern of physical, emotional, and intellectual activities which some believe to affect human’s behavior. This article studies relationship between Biorhythm, 3 dimensions of Biorhythm (Emotional, Physical and Intellectual) and making error in buying stock in Tehran stock exchange. Statistical population of the present study includes all stock buyers in stock exchange at 2014 that of these 312 buyers selected randomly as sample. This research is applicable in terms of goal and descriptive from solidarity category in terms of methodology and is survey in terms of collecting data. For research hypothesis test, Phi & Cramer's test was used because both of indexes are nominal. Results show there is a meaningful relationship between critical manners in Biorhythm (Emotional, Physical and Intellectual) and error in buying stock (the one that should not be bought) in Tehran stock exchange.

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Panuszka, Ryszard, Zbigniew Damijan, Cezary Kasprzak, and James McGlothlin. "Infrasounds and biorhythms of the human brain." Journal of the Acoustical Society of America 111, no. 5 (2002): 2335. http://dx.doi.org/10.1121/1.4777803.

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Grisar, Th, B. Lakaye, and E. Thomas. "Molecular basis of neuronal biorhythms and paroxysms." Archives of Physiology and Biochemistry 104, no. 6 (January 1996): 770–74. http://dx.doi.org/10.1076/apab.104.6.770.12915.

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Guha, T., A. Sen, and R. L. Brahmachary. "Squid Gill - a System for Studying Biorhythms." Microscopy and Microanalysis 3, S2 (August 1997): 125–26. http://dx.doi.org/10.1017/s1431927600007510.

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It is well known that cephalopods ( octopus, squid, cuttle fish etc. ) have various pulsatile systems in their bodies. We have now used the gills of Loliolus investigatoris and Loligo dauvauceli, two small squids found in the Bay of Bengal, as a system for studying such autonomous pulsations. The gills excised out of squids cast on the beach from fishing nets can be maintained in pasteurised sea water for 3 4 or 5 days in petri dish where they continue to execute the rhythmic movements.The gill samples were fixed in 2% Gluteraldehyde in 0.1M Phosphate buffer (pH 7.4).for 48 hours, then washed with filtered pasteurised sea water, followed by washing in distilled water, dehydration in acetone and critical point drying in liquid CO2 and coating with gold.Fig. 1.depicts an ablated gill which executes an oscillatory motion as a whole; more importantly, the individual finger like projections shown in fig. 2, exhibit rhythmic lateral movements and the blood-vessels, as a result of constrictions and dilation, seem to “tick” like a clock in rapid succession. Periodicity of the gill swinging as a whole is about one swing per 7-8 seconds, for the sidewise swing it varied from 35 to 70 seconds in one gill, 11-39 in another while the “ticking” is about once a second. This last one is, however, lost after a few hours.

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Mergenhagen, Dieter. "Biorhythms on cellular and organismic level (introduction)." Advances in Space Research 9, no. 11 (January 1989): 247–48. http://dx.doi.org/10.1016/0273-1177(89)90080-x.

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Golubev, Vadim M. "Global extinctions and the biological evolution." Journal of Palaeosciences 44 (December 31, 1995): 1–8. http://dx.doi.org/10.54991/jop.1995.1197.

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The biosphere evolution is shown to accompany geodynamic processes and follow different-order cycles of the galactic motion of the Solar System. Restricted to critical points of the cycles are global epochs of nascencies and extinctions of taxa whose rank corresponds to a scale of geodynamic activation at their origin in critical points of the Earth’s surface. Mutations are induced by a cyclic increase in cosmic radiation and provided by synchronous variations of geophysical fields. Rhythmics of physical fields at taxa nascencies is fixed in genotype of organism to form their biorhythms and typical response degree to variations of the fields, reflected in stage-by-stage pattern of their life cycle. Desynchronization of the biorhythms with physical rhythms cause taxa extinctions or re-nascencies that is stimulated by simultaneous catastrophic changes in habitat conditions.

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SAIGUSA, Masayuki. "Biorhythm in tide environment." Dobutsu seiri 5, no. 1 (1988): 3–10. http://dx.doi.org/10.3330/hikakuseiriseika1984.5.3.

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Panduro-Baron, G., J. Gonzalez-Moreno, and E. Hernandez-Figueroa. "The biorhythm of birth." International Journal of Gynecology & Obstetrics 45, no. 3 (June 1994): 283–84. http://dx.doi.org/10.1016/0020-7292(94)90257-7.

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Carta, MG, A. Preti, and HS Akiskal. "Coping with the New Era: Noise and Light Pollution, Hperactivity and Steroid Hormones. Towards an Evolutionary View of Bipolar Disorders." Clinical Practice & Epidemiology in Mental Health 14, no. 1 (February 28, 2018): 33–36. http://dx.doi.org/10.2174/1745017901814010033.

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Human population is increasing in immense cities with millions of inhabitants, in which life is expected to run 24 hours a day for seven days a week (24/7). Noise and light pollution are the most reported consequences, with a profound impact on sleep patterns and circadian biorhythms. Disruption of sleep and biorhythms has severe consequences on many metabolic pathways. Suppression of melatonin incretion at night and the subsequent effect on DNA methylation may increase the risk of prostate and breast cancer. A negative impact of light pollution on neurosteroids may also affect mood. People who carry the genetic risk of bipolar disorder may be at greater risk of full-blown bipolar disorder because of the impact of noise and light pollution on sleep patterns and circadian biorhythms. However, living in cities may also offers opportunities and might be selective for people with hyperthymic temperament, who may find themselves advantaged by increased energy prompted by increased stimulation produced by life in big cities. This might result in the spreading of the genetic risk of bipolar disorder in the coming decades. In this perspective the burden of poor quality of life, increased disability adjusted life years and premature mortality due to the increases of mood disorders is the negative side of a phenomenon that in its globality also shows adaptive aspects. The new lifestyle also influences those who adapt and show behaviors, reactions and responses that might resemble the disorder, but are on the adaptive side.

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Journal articles on the topic 'Biorhythmus'

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