Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Geomagnetic Field And The Sex Of A Child

29.03.2005


Researchers from St. Petersburg have ascertained that formation of a child’s sex depends, among other things, on the geomagnetic field status at the time of conception.



Who will be born – a boy or a girl? The answer to this question that worries all parents is determined by a lot of conditions, including external ones. The scientists of the Central Scientific-Research Institute of Radiology and Nuclear Medicine, Ministry of Health Care of the Russian Federation (St. Petersburg) and the St. Petersburg branch of Institute of Terrestrial Magnetism, Ionosphere and Radiopropagation, Russian Academy of Sciences (IZMIRAN), have ascertained that the sex of a child depends, among other things, on the level of disturbances of geomagnetic field status at the time of conception.

The researchers have retrospectively analyzed the connection between more than 600 randomly chosen supposed conception instants and the geomagnetic field status within the 1914-1979 timeframe. These instants were mainly inhabitants of St. Petersburg and the St. Petersburg Region. As the exact date of conception is normally unknown, therefore the researchers subtracted 280 days from the date of the child’s birth and determined the geomagnetic field status on that day and on the dates of nearest extremums before and after the supposed conception.


Regardless of the fact that the frequency of the boys’ and girls’ births was on the whole approximately equal within the period under review, some interesting regularities were still discovered. It has turned out that in case of lowering intensity of magnetic field oscillation at the point of conception, boys were borns more frequently (approximately 16 boys per 10 girls), but in case of increasing its intensity – girls were born more frequently (approximately 15 girls per 10 boys).

Can science explain this regularity? The researchers suppose that the discovered dependence is connected with the roles which are assigned by evolution to the male and female sex: the female role is stabilization, the male one - lability, search. That means that in unfavorable environment (in this case – increased level of magnetic field distortion) preconditions for girls’ birth occur in gametal cells, and vice versa, in favorable environment (decreased level of distortion), boys are born.

Such preconditions appearance mechanism is yet unclear. However, the researchers assume that it is connected with the presence of free-radical particles in the cells, fluctuations in ultra-low magnetic fields intensity being able to influence these particles’ recombination processes, and also to affect decay of some types of blood leucocytes, for example, neutrophils, which significantly decrease in number during disturbed geomagnetic activity periods.

Sergey Komarov | alfa
Further information:
http://www.informnauka.ru

More articles from Physics and Astronomy:

nachricht Study offers new theoretical approach to describing non-equilibrium phase transitions
27.04.2017 | DOE/Argonne National Laboratory

nachricht SwRI-led team discovers lull in Mars' giant impact history
26.04.2017 | Southwest Research Institute

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

 
Latest News

Bare bones: Making bones transparent

27.04.2017 | Life Sciences

Study offers new theoretical approach to describing non-equilibrium phase transitions

27.04.2017 | Physics and Astronomy

From volcano's slope, NASA instrument looks sky high and to the future

27.04.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>