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In occupational safety and health, hand arm vibrations (HAVs) are a specific type of occupational hazard which can lead to hand–arm vibration syndrome (HAVS). HAVS, also known as vibration white finger (VWF) or dead finger, [1] is a secondary form of Raynaud's syndrome, an industrial injury triggered by continuous use of vibrating hand-held ...
Minister Vindhya Persaud demonstrating the human trafficking distress gesture. In Guyana in 2022, the Ministry of Human Services and Social Security mimicked the existing Signal for Help and announced a gesture of clasping the fingers into the palm and releasing them, in a repeated motion three times, to be used as a signal that the person was a victim of human trafficking and required help.
The signal is performed by holding one hand up with the thumb tucked into the palm, then folding the four other fingers down, symbolically trapping the thumb by the rest of the fingers. [3] It was designed intentionally as a single continuous hand movement, rather than a sign held in one position, so it could be made easily visible.
The Finger, an extended middle finger with the back of the hand towards the recipient, is an obscene hand gesture used in much of Western culture. [17] Finger gun is a hand gesture in which the subject uses their hand to mimic a handgun. If pointed to oneself (with or without the "hammer falling" of the thumb indicating firing, or a small tilt ...
The Chinese variant became much more complex including pointing (using both forefinger and middle finger instead of forefinger-only as in Japan, and used when checking signals, doors, speed and other major aspects) and caution (bending the right elbow by 90° and lifting the forearm upright, used when a checking procedure is finished or caution ...
Fine motor skills are also needed in construction. Repeatedly performing these tasks can cause injuries such as tendinitis, carpal tunnel syndrome, trigger finger, epicondylitis, and hand-arm vibration syndrome (HAVS). [16] Vibrations from power tools can cause injuries and long-term health effects.
Hand signals are agreed gestures that people make with their hands or body to communicate in a non-verbal way. When used in traffic, hand signals are often used to convey driver's intention of their next movement. In some countries, hand signals can apply to any vehicle whose signal lights are missing or damaged.
The hand is a very complex organ with multiple joints, different types of ligament, tendons and nerves. Hand disease injuries are common in society and can result from excessive use, degenerative disorders or trauma. Trauma to the finger or the hand is quite common in society. In some particular cases, the entire finger may be subject to ...
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