Strontium (atomic symbol Sr) is a silvery-white alkaline earth metal that exists in several stable (e.g., Sr-86 and Sr-88) and several radioactive (e.g., Sr-89 and Sr-90) isotopic states. Stable strontium and its salts have many industrial uses, such as providing the red color in pyrotechnic devices such as tracer bullets, distress signal rockets, flares, and fireworks. In medicine, strontium b...

1 Instituto de Saúde Coletiva, Federal University of Bahia, Salvador, Brazil, 2 National Institute in Science, Technology and Innovation in Health (CITECS), Salvador, Brazil, 3 Instituto de Pesquisa Econômica Aplicada, Brası́lia, Brazil, 4 Federal University of Santa Catarina, Floranopólis, Brazil, 5 Secretaria de Vigilância a Saúde, Ministry of Health, Brası́lia, Brazil, 6 Instituto de Comunicaç...

The asymmetric unit of the title compound, C(15)H(10)BrNO(4)S, contains two different conformers in which the benzisothia-zole rings are essentially planar, with r.m.s. deviations of 0.012 and 0.017 Å. The mean planes of the benzene rings form dihedral angles 70.49 (13) and 72.79 (11)° with the benzisothia-zole rings. The orientation of the Br atoms in the two conformers exhibit the most pronou...

The title compound C(19)H(27)N(3)O(3)S, crystallizes with two unique mol-ecules in the asymmetric unit. The benzene ring of each benzothia-zole unit carries a dipropyl-carbamoyl substituent in the 6-position and a tert-butyl carbamate unit on each thia-zole ring. In the crystal structure, inter-molecular N-H⋯N and weak C-H⋯O hydrogen bonds form centrosymmetric dimers. Additional C-H⋯O contacts ...

We aimed to compare effectiveness of Wenxin Keli (WK) and sotalol in assisting sinus rhythm (SR) restoration from paroxysmal atrial fibrillation (PAF) caused by hyperthyroidism, as well as in maintaining SR. We randomly prescribed WK (18 g tid) or sotalol (80 mg bid) to 91 or 89 patients. Since it was not ethical not to give patients antiarrhythmia drugs, no control group was set. Antithyroid d...

Resistance to malignant erythropoiesis induced by Friend spleen focus-forming virus and resistance to marrow stem cell allografts are under genetic control. Strains of mice, e.g., C57BL/6 and B10.D2, which are homozygous for resistance at the Fv-2 locus, are also good rejectors of most bone marrow allografts. (89)Sr, a bone-seeking isotope, irradiates marrow but not other lymphoid organs and ab...