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Materias / palabras clave: Islam; Ramadán

Graphene is the two-dimensional building block for carbon allotropes of every other dimensionality. We show that its electronic structure is captured in its Raman spectrum that clearly evolves with the number of layers. ...

Raman spectra are reported from single crystals of graphite and other graphite materials. Single crystals of graphite show one single line at 1575 cm−1. For the other materials like stress-annealed pyrolitic graphite, ...

Materias / palabras clave: Cornejo Polar, Antonio; Rama, Angel; Rama, Ángel; Critics; Peru; Uruguay; Criticism; History; 20th century; Latin America; Spanish American literature; History and criticism; Theory, etc; Decolonization in literature; A...

The model and theoretical understanding of the Raman spectra in disordered and amorphous carbon are given. The nature of the G and D vibration modes in graphite is analyzed in terms of the resonant excitation of \ensurem...

Optical detection and spectroscopy of single molecules and single nanoparticles have been achieved at room temperature with the use of surface-enhanced Raman scattering. Individual silver colloidal nanoparticles were scr...

Con el objetivo de conocer el crecimiento y desarrollo de Gliricidia sepium durante el establecimiento se estudiaron los indicadores altura, numero de ramas y supervivencia del área a los 2, 4, 6, 8, 10, 12 y 14 meses p...