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Closely spaced polysynthetic twinning is often observed as striations or fine parallel lines on the crystal face. Cyclic twins are caused by repeated twinning around a rotation axis. This type of twinning occurs around three, four, five, six, or eight-fold axes, the corresponding patterns are called threelings, fourlings, fivelings , sixlings ...
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Endoscopic thoracic sympathectomy (ETS) is a surgical procedure in which a portion of the sympathetic nerve trunk in the thoracic region is destroyed. [1] [2] ETS is used to treat excessive sweating in certain parts of the body (focal hyperhidrosis), facial flushing, Raynaud's disease and reflex sympathetic dystrophy.
Postoperative cognitive dysfunction (POCD) is a decline in cognitive function (especially in memory and executive functions) that may last from 1–12 months after surgery, or longer. [1] In some cases, this disorder may persist for several years after major surgery. [2] POCD is distinct from emergence delirium. Its causes are under ...
Green to dark green; colorless to pale green in thin section: Crystal habit: Rarely in rough crystals; anhedral, granular to massive: Twinning: Single and polysynthetic twinning common on {100} Cleavage: Good on {110}, {110} ^ {1 1 0} ≈87°; parting on {100} Fracture: Uneven to conchoidal: Tenacity: Brittle: Mohs scale hardness: 5–6: Luster ...
Homopaternal superfecundation is fertilization of two separate ova from the same father, leading to fraternal twins, [3] while heteropaternal superfecundation is a form of atypical twinning where, genetically, the twins are half siblings – sharing the same mother, but with different fathers.
Fat embolism syndrome; Other names: Fat embolism: Microscopic section of the lungs showing a blood vessel with fibrinoid material and an empty space indicative of the presence of lipid dissolved during the staining process.
Disconnection syndrome is another well-known side effect of the surgery. [15] This occurs due to the brain's inability to transfer information between the hemispheres. [ 16 ] One characteristic symptom is the "crossed-avoiding reaction", which is observed when one hemisphere does not respond to visual or sensory (e.g., touch, pressure, or pain ...