A large set of quasi-classical, direct dynamics trajectory simulations were performed for decomposition of 1,5-dinitrobiuret (DNB) over a temperature range from 4000 to 6000 K, aimed at providing insight into DNB decomposition mechanisms. The trajectories revealed various decomposition paths and reproduced the products (including HNCO, N(2)O, NO(2), NO, and water) observed in DNB pyrolysis expe...

PURPOSE To report the association of Marcus Gunn jaw-winking phenomenon and pseudo inferior oblique overaction. METHODS Case report. RESULTS A 21-year-old woman presented with right eyelid elevation on the chewing movement since infancy. Examination showed that both Marcus Gunn jaw-winking phenomenon and pseudo inferior oblique overaction coexist in this patient. CONCLUSION The associatio...

THE following case of congenital ptosis with Marcus Gunn phenomenon (Gunn, 1883) is interesting because of its unusual association with multiple paradoxical oculo-palpebral movements (Duke-Elder, 1952). Case Report An 18-year-old girl came for cosmetic correction of a congenital ptosis of the right upper lid with alternate divergent strabismus of about 150. The Marcus Gunn phenomenon was also p...

Several abnormal synkinetic eye movements during jaw movements may often be seen after trauma or congenitally in the Marcus Gunn jaw winking phenomenon. The most frequent type consists of unilateral ptosis and retraction of the ptotic lid upon moving the jaw. The authors describe a case with isolated simultaneous adduction of the left eye upon jaw movement. This paper presents a rare case of Ma...

The unimolecular dissociation and isomerization kinetics of the three methyl propanoate (MP) radicals, CH3CH2C(=O)OĊH2 (MP-m), CH3ĊHC(=O)OCH3 (MP-α), and ĊH2CH2C(=O)OCH3 (MP-β), are theoretically investigated using high-level ab initio methods and the Rice-Ramsperger-Kassel-Marcus (RRKM)/master equation (ME) theory. Stationary-point energies are obtained using the coupled cluster singles and do...

José Fernando Pereira Mesquita, Thiago Faria Ramos, Felipe Pereira Mesquita, José Murillo Bastos Netto, Marcus Gomes Bastos, André Avarese de Figueiredo I Faculdade de Medicina da Universidade Federal de Juiz de Fora, Curso de Pós Graduação em Saúde Brasileira, Juiz de Fora/MG, Brasil. II Faculdade de Medicina da Universidade Federal de Juiz de Fora, Juiz de Fora/MG, Brasil. III Faculdade de Me...