Depression – although it may sound to some news – the same disease as the flu or intestinal upset.
It starts because of some problems in our psycho-neurological apparatus that cannot be won by force alone will and against which there is a set of therapeutic agents, including antidepressants terrific. It should probably stipulate again that we do not mean depression under normal spleen, and clinical disease.
It is obvious that, like any disease, depression should be subject to the usual clinical rules. And one of those rules states that the disease is easier to prevent than to treat it, and if it is begun, the better to catch it early in development. Is it fair for depression? And if it is true, how to choose the moment to pay her a preemptive strike?
These issues were engaged Marten Scheffer and his colleagues at Wageningen University (Netherlands), as well as experts from Australia and the USA. The researchers asked 600 people with depression and healthy, for 5-6 days followed by your emotions. Ten times for each day wristwatch test beep, reminding that you need to make a record of the test here and now emotions. Emotions were grouped into four types: the joy, satisfaction, anxiety and sadness. Celebrate it was necessary not only “what” but “how”, i.e. indicate strength in a state. Continue reading
An international group of scientists led by Vanessa Bailey, University of Arizona (USA) discovered exoplanet spaced from its star to 650 astronomical units.
HD 106906 b – almost a brown dwarf, good weight, it is 11 times larger than Jupiter. And it is for the present shadow of catastrophe theory of planets.
The body was found by chance no one was looking for anything like that at such a distance from the young star HD 106906, which is shared with the Earth 300 light years. However, third-party source of radiation itself attracted the attention of scientists and astronomers have gradually dropped all the other versions. That is, in theory, it can be light from another star, accidentally fell on the photo, but with the current data on the density of stars in our galactic neighborhood is unreal. Therefore, the facts look like this: body is separated from its star in more than twenty times more than the highest planet in the solar boundary from the Sun.
What is left? And is an extrasolar planet that came to light not know how. To such a body appeared, it must be part of the protoplanetary disk. Around HD 106906 itself, yes it only ends in a 120. AU from the star, and that although many (in our system, the space occupied by the planets, four times less), but weighty inferior distance to HD 106906 b. What planet is this? And why it is where it in principle should not be? Continue reading
Remembering the hot debate about the shape of the electron and the severity of his teeth, once a reservation: the proton consists of three quarks (two upper and one lower), has what is called its radius, and it is considered that the distance at which the charge density is reduced to certain value.
To measure this range, the interaction uses a proton (which take the nucleus of the hydrogen atom) and an electron -contacting, in turn, with the core. An electron around a Proton on the certain orbits — the discrete energy levels, some of which depends on the size of a Proton. Tracking the behavior of electrons, and it is measured.
But there is an alternative approach: instead of an electron in the course is the muon, which is 200 times heavier and therefore revolves around the proton at a lower orbital. This method determines the size of the proton, in theory, to be exact. In 2010, similar measurements made a small sensation: it turned out that instead of the more accurate assessment turned out … fundamentally different. And it made to doubt the “ideal” of quantum electrodynamics, which were based on calculations of the expected parameters of the proton… Continue reading
The search for weakly interacting dark matter particles (WIMP) is not very effective. This begs the question: what other particles may be candidates for dark matter?
With a very long time for a place tipped axions – hypothetical neutral particles that have weakly interact with normal baryonic matter in the end of his life decay into a pair of photons. Here are all attempts to detect traces of such particles in the experiments is inconclusive.
Or … so it seemed to us, involves Christian Beck from Cambridge University (UK), considered here by the provocative work. Certain anomaly in experiments with superconductors may well be the result of activity is axions passing through the experimental setup. And if so, for the masses of 0.11 meV axions already found!
Of course, throw in the air caps early. First, the weight is too small. Secondly, it is still necessary to confirm, but the undisputed advantage hypothesis is relatively uncomplicated its verifiability. Experiments with superconductivity do not require the Large Hadron Collider, and so in the near future, we learn: axions that were either just noise. Continue reading
The new X-ray machine the size of a shoebox gives a hundred times more detailed images of internal organs, with less irradiation of the patient.
Over a century of x-ray machines is everything when it comes to diagnosing many diseases and injuries. But there is no good without the hood is very limited: they “see” the soft tissues — at least if you don’t inject into the blood of the patient including barium, the purpose of which is to enhance the contrast of healing imagery.
All who have this procedure will agree with us that it’s disgusting, uncomfortable, impractical and often simply impossible, perhaps due to a lack of time in the immediate diagnosis.
And this motivated group of developers from the Massachusetts Institute of technology (United States) led by Chen Shuo, Luis Velasquez Garcia on the establishment of a system that uses coherent beams of x-rays from a single, and not from an array of sources, and micron -point.
This is radically different from the usual installation and, more importantly, dramatically improves the resolution of the device. In tests on the eye of the corpse of this technique could, without imposing any substances inside of the body to “see” in detail the lens, cornea and other structures of the eye. Needless to say, traditional x-ray devices are not always too tough? Technology of manufacture of microsources radiation is similar to that used in electronics, and therefore does not need new production equipment. Continue reading
Multitude of diseases arise due to problems in the DNA – if not entirely, at least partly, and scientists, of course, try to establish the most complete link between the two. And it usually happens like this: select a disease and people suffering from it – the more the better, they analyzed DNA and compare it with the DNA of those who have the disease do not.
Such studies require a lot of time and money: you need to find a sufficient number of patients to gather information about their genomes, etc. All this can take years, so scientists are constantly looking for a way that would save both time and money. And one of these approaches suggested by researchers from Vanderbilt University School of Medicine (USA).
Strictly speaking, what is reported in Nature Biotechnology Joshua Denny and his colleagues seem so obvious that it’s amazing how it still did not occur to anyone in the head. In medicine (at least in the West) has long been practiced maintenance of electronic records that reflect the entire history of the patient: diagnosis, treatment, test results, the doctor notes, as well as billing information necessary insurance company to provide payment services. Continue reading