Rodrigues Savio

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Strongly enhanced light emission at wavelengths between 1.3 and 1.6 ␮m is reported at room temperature in silicon photonic crystal ͑PhC͒ nanocavities with optimized out-coupling efficiency. Sharp peaks corresponding to the resonant modes of PhC nanocavities dominate the broad sub-bandgap emission from optically active defects in the crystalline Si membrane.(More)
BACKGROUND Emergence of polyantimicrobial resistant strains of hospital pathogens has presented a challenge in the provision of good quality in-patient care. Inappropriate use of antibiotics in the hospital is largely responsible for this catastrophe. Bacteriological surveillance of the cases of nosocomial infections is crucial for framing an evidence-based(More)
HIV and AIDS have brought about a global epidemic, far more extensive than what was predicted. HIV infection appears to influence the natural history of infection with Hepatitis viruses. There is a high degree of epidemiological similarity between the Hepatitis B virus and HIV as regard to high risk groups, route of transmission and presence of virus in the(More)
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