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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Electric stove. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Household Appliances

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In kitchen electric stoves, heating electric elements are used. Already in 1880, a kitchen pot with a spiral wound around it was used for cooking. And in 1890, metal plates began to be used as heating elements, under which a spiral was installed. Modern heating elements have been used since 1920. These are wire spirals, zigzag ribbons or cast parts made of alloys with high electrical resistivity (nichrome, chrome).

Disc heating elements for pots and pans are installed at the top of the stove. They have stepwise adjustment of the heating temperature with the help of special handles. The electric stove oven is equipped with zigzag heating elements. The temperature in it is regulated by a thermostat. Usually this is a bimetallic strip that cuts off the current in the circuit when the temperature in the oven reaches a predetermined level.

Electric stove ovens are equipped with a rotating grill for cooking poultry or meat. Slowly rotating, they allow you to evenly fry the carcass of a bird or a piece of meat. Modern electric stoves have software control. They turn on, set the desired temperature and turn off when food is cooked.

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Anti-inflammatory drugs help with depression 26.10.2016

It is often said that depression and inflammation are interrelated, that one reinforces the other. But in this case, probably, anti-inflammatory drugs should reduce the symptoms of depression.

Indeed, they do work, but not all. According to the results of the work of researchers from Cambridge, ordinary ibuprofen, for example, will not help here. Inflammation is a highly complex immune response involving many different cells and molecules, including lipids called prostaglandins and proteins called cytokines. The anti-inflammatory properties of ibuprofen lie in the fact that it inhibits the synthesis of prostaglandins, however, in order to reduce not only inflammation, but also depression, it is necessary to act through cytokines.

The authors analyzed the results of several clinical studies involving more than 2 people treated for various autoimmune disorders. Inflammation, generally speaking, turns on during infection, when something foreign invades the body; however, it happens that the immune system begins to perceive the body's own cells as foreign, so that as a result, organs and tissues are filled with inflammatory signaling molecules synthesized for absolutely no reason.

In autoimmune disorders, they try to suppress such false signals, reduce their strength, which means to reduce the level of the notorious cytokines. In those clinical studies, the goal of the doctors was specifically immune problems, but at the same time during therapy, the general condition of patients was also recorded. Some were given real anti-cytokine drugs, some were given a placebo, and it turned out that those who took the real drugs had markedly reduced symptoms of depression. What's more, anti-inflammatory drugs often helped primarily against depression, while autoimmune symptoms remained unchanged.

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