RESUMO
Cosmic rays are energetic charged particles from extraterrestrial sources, with the highest-energy events thought to come from extragalactic sources. Their arrival is infrequent, so detection requires instruments with large collecting areas. In this work, we report the detection of an extremely energetic particle recorded by the surface detector array of the Telescope Array experiment. We calculate the particle's energy as [Formula: see text] (~40 joules). Its arrival direction points back to a void in the large-scale structure of the Universe. Possible explanations include a large deflection by the foreground magnetic field, an unidentified source in the local extragalactic neighborhood, or an incomplete knowledge of particle physics.
RESUMO
Stevens-Johnson syndrome is an acute, inflammatory eruption of the skin and mucous membranes often associated with drug ingestion. A forty-five-year-old woman showed symptoms consistent with Stevens-Johnson syndrome two days after indapamide therapy was begun for the treatment of hypertension. Initial manifestations consisted of headaches, sore throat, cough, and symptoms of conjunctival injection, including redness and swelling. Approximately two weeks later, the patient noted skin eruptions involving the conjunctiva, lips, face, neck, trunk, and extremities. She was treated with cool compresses, antiseptics, ophthalmic antibiotics and steroids, and oral prednisone. Symptoms began to resolve approximately eight days after indapamide was discontinued and treatment was begun. Although rare, Stevens-Johnson syndrome should be considered in the differential diagnosis of a patient with a history of indapamide ingestion who presents with malaise, fever, and skin eruptions.