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A material's half-value layer (HVL), or half-value thickness, is the thickness of the material at which the intensity of radiation entering it is reduced by one half. [1] HVL can also be expressed in terms of air kerma rate (AKR), rather than intensity: the half-value layer is the thickness of specified material that, "attenuates the beam of radiation to an extent such that the AKR is reduced ...
A meta-analysis found that ultrasound therapy is effective in reducing pain, increasing ROM, and reducing WOMAC functional scores in patients with knee osteoarthritis. [7] There are three potential therapeutic mechanisms of ultrasound in physical therapy. The first is the increase in blood flow in the treated area.
The minimum requirement is to wear 0.25 mm Pbeq when not behind lead shielding. In a theatre using fluoroscopy (e.g. orthopaedics, cardiology or interventional radiology) 0.35 or 0.5 mm lead may be appropriate because of the higher KV employed, and on proximity to the primary beam. [7]
Psychedelic therapy uses some type of hallucinogenic, often MDMA, ketamine, or psilocybin, alongside facilitated psychotherapy to open up a client’s mind and invite new perspectives to the table ...
[5] The first radiograph. Röntgen discovered X-rays' medical use when he made a picture of his wife's hand on a photographic plate formed due to X-rays. The photograph of his wife's hand was the first ever photograph of a human body part using X-rays. When she saw the picture, she said, "I have seen my death." [5]
An Indian company says an email informing staff that admitted to burnout had been fired was in reality part of an elaborate ruse to raise awareness over workplace stress.
U.S. prosecutors unveiled criminal charges on Wednesday against five alleged members of Scattered Spider, a loose-knit community of hackers suspected of breaking into dozens of U.S. companies to ...
Multimodal therapy (MMT) is an approach to psychotherapy devised by psychologist Arnold Lazarus, who originated the term behavior therapy in psychotherapy. It is based on the idea that humans are biological beings that think, feel, act, sense, imagine, and interact—and that psychological treatment should address each of these modalities .