The hormone of trust has been created. Free Technical Library News

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Created a hormone of trust

14.12.2017

Scientists from Australia have created a "confidence hormone" or oxytocin based on selenium. This eliminated the side effects. According to studies, the introduction of a selenium atom into the molecule blocked the imitation of the action of another peptide hormone - vasopressin. This hormone regulates blood pressure.

Thanks to this innovation, the modified molecule could be used to treat autism, schizophrenia and even epileptic seizures. Previously, despite the wide range of uses, oxytocin was treated with caution due to a whole range of side effects. Sometimes they were so serious that its use was fatal. It happened when it was introduced to a woman to stimulate contractions, a woman in labor and a baby died. This was due to the connection of oxytocin with vasopressin receptors, which regulates the balance of fluid in the body, including blood pressure on the walls of blood vessels.

However, by itself, this hormone sets people up for trust and contact, even with strangers. Under its influence, a person becomes more tolerant and kinder.

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The existence of a time loop has been proven 28.08.2018

Scientists at the University of Queensland in Australia have demonstrated that, in terms of quantum mechanics, two different events can precede each other at the same time. Violation of the causal relationship was demonstrated using the polarization of photons in the interferometer.

In the course of the study, physicists passed photons through an interferometer - a device with which a beam of electromagnetic radiation is divided into several beams going through different optical paths (A and B). Eventually, the two beams recombine and overlap each other, resulting in interference. The setup was assembled in such a way that, with vertical polarization, the photon will choose the left path, then return back and hit the right side of the interferometer. With horizontal polarization, the particle first goes along the right path, and then along the left.

However, with diagonal polarization, the quantum wave describing the position of the photon "splits", moving along both paths simultaneously. The vertically and horizontally polarized components first go each along their own path, return back, and switch to an adjacent path. Thus, both components go along each path at once, that is, the photon seems to go along both paths at the same time. At the end of each path, the photon splits again, with one component coming back and the other leaving the setup.

In this case, it is very difficult to determine which event precedes the other: either the return of the polarized components to the beginning of the paths creates the appearance of the photon passing along A and B simultaneously (the photon passes first along one path, and then along the other), or the splitting of the "forked" photon into the end of each of the paths causes a one-time return of the components to the beginning of each path (and then the photon actually passes along both paths simultaneously).

To solve this problem, scientists conducted a series of experiments, each time inserting additional lenses into the installation, which change the spatial distribution of the light beam. This allows you to change the polarization of the photon at the moment when the quantum waves are again superimposed on each other. If each photon in the beam first traveled one path and then another, then the resulting polarization of the photon must correspond to a certain value. However, the researchers found that it was impossible to determine in the experiment which of the events actually causes the other. In other words, both processes are cause and effect of each other.

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