Family status of a person and his state of health. Free Technical Library News

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Marital status of a person and his state of health

15.05.2019

Loneliness causes heart and circulatory diseases in older people. According to scientists, people die due to diseases of the heart and blood vessels, experiencing loneliness for a long time. This feeling is experienced by more and more people every year.

Anna Winggaard, a researcher at the University of Copenhagen, says that social isolation greatly increases the death rate due to stroke or coronary heart disease. Based on such data, the researchers decided to study whether loneliness really affects the number of deaths among older people.

Scientists observed volunteers from Denmark who live in different social conditions and have different status. It turns out that older people with families live longer on average than their single peers. Experts also decided that loneliness kills more often than obesity or other diseases of a similar plan.

Researchers explain this fact by the fact that lonely old people often do not take care of themselves, do not take medicine, eat junk food, walk a little, and so on. Against the background of loneliness, they begin to drink alcohol and get involved in smoking, which in old age, of course, has a very strong effect on the body. In addition, such pensioners often do not have friends.

As a result, older people without family care die more often than their peers for several years. Against this background, scientists decided to work with organizations from different countries so that they pay special attention to single pensioners.

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Fullerene will not conduct current 25.12.2009

The electric current between two fullerenes in contact goes badly, German physicists have established.

In the future, microcircuits are going to be made from individual molecules, most likely from carbon nanotubes. And they will be placed very tightly on the substrate, because the task is to create subminiature devices.

How tightly can you pack them without fear of electric current flowing in the wrong directions? The answer to this question was found by physicists from the University of Kiel, headed by Professor Richard Berndt.

They carried out the following subtle experiment. Using the probe of a tunneling microscope, they picked up one fullerene ball and delivered it to a predetermined place. Then they picked up the second same molecule and moved it close to the first one. The accuracy of movement in this case amounted to several trillionths of a meter.

By passing an electric current through the resulting pair, the researchers found that the conductivity is low: a hundred times less than that of the fullerene molecule itself. This means that when creating nanocircuits, special insulation of nanotube wires is not required.

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