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Drill increases aggression

27.10.2012

In armies around the world, recruits are first trained to march in step. What for? It is generally believed that this skill contributes to the coherence of the unit's actions when executing commands. However, psychologists from the University of Southern California argue that the habit of acting in the same rhythm with everyone else increases the aggressiveness of the group.

Volunteers - participants in the experiments had to perform simple movements to the music. At the same time, one group listened to rhythmic music through loudspeakers, while the other group individually listened to music of different rhythms through headphones. Psychological tests after this experiment showed that aggressiveness increased by 54% in the first group.

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Ultrasound against cancer cells 04.01.2020

Most ultrasound treatments for cancer use high-intensity radiation to heat and destroy cells. In this case, special contrast agents can be used, which "mark" the tumor and allow you to focus the radiation in the desired area. However, heat to some extent harms healthy cells, and contrast agents act on only a small part of tumors.

Researchers at the California Institute of Technology (Caltech) and the Beckman Research Institute (National Medical Center City of Hope, USA) have developed a cancer treatment method in which low-intensity ultrasound causes the destruction of the cellular skeleton of cancer cells, while neighboring healthy cells do not suffer. .

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