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Solar activity 23-24 cycles and Structure of biomedical monitoring data

Keywords:

V.N. Obridko – Dr.Sc. (Med.), Professor, Institute of Terrestrial Magnetism (Moscow). E-mail obridko@izmiran.ru
M.V. Ragulskaya – Ph.D. (Phis-Math), Senior Research Scientist, Institute of Terrestrial Magnetism. E-mail: ra_mary@mail.ru
E.A. Rudenchik – Ph.D. (Phis-Math), Institute of Terrestrial Magnetism. E-mail: ruden_ea@mail.ru
O.V. Khabarova – Ph.D. (Phis-Math), Senior Research Scientist, Institute of Terrestrial Magnetism. E-mail: olik3110@list.ru
E.G. Hramova – Senior Engineer, Institute of Terrestrial Magnetism. E-mail sinop@yandex.ru


The present-day biological objects, available to study, carries the information about the rhythms and the features of adaptation of early and modern ecological systems to the outer space influence. Influence of cosmic rays, ultraviolet and geomagnetic field on early life has its signs in modern biosphere processes, which may be experimentally studied. IZMIRAN experimental bio-medical data as well as historical and paleo-data bases are taken into consideration. Long –term helio-medical daily monitoring of physiological parameters for a constant group of volunteers (psycho-emotional tests, the ECG 1 st lead – 50 000 measurements, arterial blood pressure – 100 000 measurements, cardio-variability (the RR-interval) – 250 000 measurements, electric conductivity of skin bioactive points – > 500 000 measurements). Currently IZMIRAN has its own database to change the daily physiological parameters constant group of people for 1998 - 2012 years (more than 500 000 measurements). The monitoring period 1998-2013 was not average for solar activity. It included the phase of growth, maximum and decay of the 23-rd cycle, than the phase of minimum of solar activity 2005-2009 (almost 2 times longer than standard duration), than the phase of growth 2009-2011 and then the phase of growth and the phase of maximum of current 24-th cycle 2011-2012. Physical characteristic of each phase of the solar activity strongly differs from other phases. The magnetic storms are most interesting for us. During the monitoring period were observed 519 magnetic storms with gradual commencement (GC) and 135 storms with sudden commencement (SC). At that in phase of maximum, 1998-2002, were observed 172 storms GC and 85 storms SC. At that in phase of minimum, 2008-2009, the quantity of storms was essentially less (32 GC и 2 SC). One can expect, that the adaptation reaction of the human organism (which starts a response to the gradient of external influence) in first case it will appear at the fact of presence of a storm, and in the second at the fact of its unexpected absence. Having the database of daily measures of the physiological parameters of people in 1998-2012 we tried to analyze the statistic regularities and to answer the question: how the existence of the solar activity cycle impacts on the structure of the biomedical data? The period of the accumulation of the data for making estimation of the parameters of distribution was two months. The quantity of the measures in each period is from 17000 to 45000. All diagrams show the abrupt change of the parameters of distribution between July and September 2005. Considering the candidates for the biotropic agent of the cosmic weather one can suppose, that the quick change of all main statistical parameters of the biological objects could be explained by the quick change of the quantity of the geomagnetic storms with sudden and gradual commencement. As the matter of fact, the geomagnetic activity is determined by two factors. On the one hand the crown ejections of the mass, relate to the local magnetic fields. The crown ejections of the mass generate the geomagnetic storms with sudden commencement. The storms with gradual commencement are generated by crown holes, and the holes, in turn depend on large-scaled or global magnetic fields of the Sun [1]. The function of the fields of different scales changes during the cycle. The local fields dominate at the maximum of the cycle, and the large-scaled fields dominate at the minimum of the cycle. The index of sun effective multi-field (IM) may be to estimate their relative impact. Its amount is shown with the red curve, and the values are pointed on the left ordinate line. The traditional Wolf numbers are shown with the blue curve, and the values are pointed on the right ordinate line. When the solar magnetic fields are strong the IM increases, at their minimum IM converges to the value order 3. The same way the further developments were in previous cycles. But at the 23-ed cycle after the usual decay there was the second maximum of the IM and the return to the top values. Just such qualitative changes of geomagnetic perturbations took place at the end of 2004. It is supposed that the quick change of the geomagnetic activity happened, at that just due to the geomagnetic storms with gradual commencement; and these geomagnetic storms in their turn are dependent on quantity of the equator crown holes. Within 2002-2003 were the high value (especially high at 2003), than quick decay, than a small rise in 2004 – 2005, and then decay again. The value has not come to the level of 2002 – 2003 until now. The current 24 cycle of the solar activity is unusual because of long minimum 2005-2009, and, simultaneously, because of the dynamic parameters of the cosmic weather. The analytic prognosis allows supposing the soon coming of a long period of low solar activity, analogously to the Maunder minimum 400 years ago. For this reason one would like to pay attention to the detected quick change of the biological parameters of the statistic distributions in 2004 – 2005, which does not conform to the tradition correlation of the biomedical data to the classic sinusoid dynamic of the changes of quantity of the sunspots during the solar activity cycle.
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