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Andreas Stihl AG & Co. (commonly referred to as Stihl and styled as STIHL, / stiːl / ⓘ, [3] German: [ʃtiːl]) is a German manufacturer of chainsaws and other handheld power equipment including trimmers and blowers headquarted in Waiblingen, Baden-Württemberg, near Stuttgart, Germany. Stihl was founded in 1926 by Andreas Stihl, an innovator ...
Historical osteotome, a medical bone chainsaw. The origin of chainsaws in surgery is debated. A "flexible saw", consisting of a fine serrated link chain held between two wooden handles, was pioneered in the late 18th century (c. 1783 –1785) by two Scottish doctors, John Aitken and James Jeffray, for symphysiotomy and excision of diseased bone, respectively. [2]
The signs and symptoms of multiple sclerosis (MS) encompass a wide range of neurological and physical manifestations, including vision problems, muscle weakness, coordination difficulties, and cognitive impairment, varying significantly in severity and progression among individuals. Multiple sclerosis can cause a variety of symptoms: changes in ...
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In a pap smear, a gynecologist uses a speculum to open the walls of the vagina, and then uses an instrument to collect cells from the cervix. As the Mayo Clinic notes, it “may feel uncomfortable ...
Multiple sclerosis. Variable, including almost any neurological symptom or sign, with autonomic, visual, motor, and sensory problems being the most common. [1] Multiple sclerosis (MS) is an autoimmune disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged. [3] Being a demyelinating disease, MS disrupts ...
The MS.250 was a parasol-wing monoplane with swept-back wings, similar to the Morane-Saulnier MS.230, but differed in having a new tail. The cockpits had windscreens, and the rear cockpit had a gun ring. The pilot-instructor manned the front cockpit, and the trainee observer manned the rear cockpit. [1] A second aircraft was built with a more ...
The Department of Transportation announced on Thursday that it was investigating the rewards programs of the four largest US airlines — American, Delta, Southwest, and United — to make sure ...