Excitation energy transfer from dye molecules to doped graphene

Recently, we have reported theoretical studies (J. Chem. Phys. 129, 054703, 2008 and J. Chem. Phys. 130, 086101, 2009) on the rate of energy transfer from an electronically excited molecule to graphene. It was found that graphene is a very efficient quencher of the electronically excited states and that the rate $\propto$ $(distance)^{-4}$. The process was found to be effective up to $30\;nm$ which is well beyond the traditional FRET limit. In this report, we study the transfer of an amount of energy $\hbar \Omega$ from a dye molecule to doped graphene. We find a crossover of the distance dependence of the rate from $(distance)^{-4}$ to exponential as the Fermi level is increasingly shifted into the conduction band, with the crossover occurring at a shift of the Fermi level by an amount $\hbar \Omega/2$.Comment: This paper was submitted to J. Chem. Phys. on 20/05/201

Gender issues in Marine Fisheries

The overall G.D.E.I of 63.03 suggests that there is further potential for effective continued use of this model in similar locations in Coastal Karnataka, since the diffusion of this technology to other end users in this region, is in the initial stage of the adoption curve with the innovators dominating the mussel groups. Women mussel farmers in the group need to be strengthened and their potential has to be harnessed on the group dimensions such as influence, styles of influence, decision making, task function ,feelings, norms, interpersonal trust and group achievements

Factors influencing the livelihood index and level of aspiration of fisherwomen

A study was conducted among fifty women fish vendors in Kancheepuram and Chennai districts to determine the factors influencing the livelihood index and leve! of aspiration. The independent variables such as annual income, scientific orientation, expenditure per year and savings per year were found to have highest factor loadings on livelihood index and level of aspiration of fisherwomen. Besides most of the fisherwomen had a high level (score of < 50) of livelihood index and a high level (score greater than 13) of aspiratio