995 resultados para 280


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Dynamics of I*(P-2(1/2)) formation from CH2ICl dissociation has-been investigated at five different ultraviolet excitation wavelengths, e.g., 222, 236, 266, 280, and similar to304 nm. The quantum yield of I*((2)p(1/2)) production, phi*, has been measured by monitoring nascent I(P-2(3/2)) and I* concentrations using a resonance enhanced multiphoton ionization detection scheme. The measured quantum yield as a function of excitation energy follows the same trend as that of methyl iodide except at 236 run. The photodissociation dynamics of CH2ICl also involves three upper states similar to methyl iodide, and a qualitative correlation diagram has been constructed to account for the observed quantum yield. From the difference in behavior at 236 nm, it appears that the crossing region between the two excited states ((3)Q(0) and (1)Q(1)) is located near the exit valley away from the Franck Condon excitation region. The B- and C-band transitions do not participate in the dynamics, and the perturbation of the methyl iodide states due to Cl-I interaction is relatively weak at the photolysis wavelengths employed in this investigation.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Poucas alterações ocorreram no substitutivo na votação do capítulo II. O Deputado Renato Viana (PMDB-SC) declara que os recursos naturais sobre a plataforma continental pertencem aos Estados costeiros. A Comissão de Sistematização discute a criação de novos Estados. Mantida a proposta onde qualquer alteração só poderá ocorrer se aprovada por plebiscito, Assembleia Legislativa e Congresso Nacional. O Deputado Ottomar Pinto (PTB-RR) defende que apenas o plebiscito é suficiente para a aprovação de criação de um estado. Constituintes estão preocupados com o prazo da votação. Em debate, o funcionamento da Comissão de Sistematização e do Plenário em paralelo. Celso Furtado, Ministro da Cultura, reune os constituintes negros para avaliar o trabalho realizado sobre a cultura negra na Comissão de Sistematização. O Deputado Carlos Alberto Caó (PDT-RJ) ressalta dispositivo no capítulo de Educação que valoriza a grande contribuição histórica sedimentada dada pelos negros para a cultura brasileira. O Deputado Edmilson Valentin (PCdoB-RJ) declara que o texto constitucional acertou quanto à discriminação racial. O ministro Celso Furtado acredita que o projeto representa um grande avanço cultural, por ser amplo e moderno. A Deputada Benedita da Silva (PT-RJ) destaca que valores culturais estão sendo resgatados no texto constitucional.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

As an alternative to the present system of intermediation of the German savings surplus, this paper suggests that the risk-adjusted rate of return could be improved by creating a sovereign wealth fund for Germany (designated DESWF), which could invest excess German savings globally. Such a DESWF would offer German savers a secure vehicle paying a guaranteed positive minimum real interest rate, with a top-up when real investment returns allowed. The vehicle would invest the funds in a portfolio that is highly diversified by geography and asset classes. Positive real returns can be expected in the long run based on positive real global growth. Since, in this case, a significant amount of funds would flow outside the euro area, the euro would depreciate, which would help crisis countries presently struggling to revive growth through exports and to close their external deficits so as to recoup their international credit-worthiness. Target imbalances would gradually disappear and German claims abroad would move from nominal claims on the ECB to diversified real and nominal claims on various private and public foreign entities in a variety of asset classes.