Publications by authors named "Ruben Monteiro"
Proceedings of the 3rd IPLeiria's International Health Congress : Leiria, Portugal. 6-7 May 2016.
BMC Health Serv Res
July 2016
Article Synopsis
- The text discusses various research studies focusing on health topics, including health literacy in adolescents and the impact of walking programs on individuals with schizophrenia.
- It also covers innovative medical practices, safety culture in patient care, and the psychological effects experienced by emergency crews after disasters.
- Additionally, it highlights issues such as musculoskeletal disorders in midwives, negative childhood experiences affecting adolescent mental health, and studies on vaccination timing and assessments in elderly care.
A study of the cross-phase modulation (XPM) degradation of differential-phase-shift-keyed (DPSK) signals due to amplitude-shift-keyed signals is performed using pump-probe simulation. Approximate expressions for the contributions of the XPM-induced intensity and phase modulation to the electrical current fluctuations at the differential-phase-exchange-keyed receiver are presented. It is shown that, unlike prior works and similar to intensity-modulated signals, the contribution of XPM-induced intensity modulation is dominant in systems using standard fiber or high residual dispersion.
View Article and Find Full Text PDFWe propose a novel analytical model for the characterization of fiber cross-phase modulation (XPM) in ultrafast all-optical fiber wavelength converters, operating at modulation frequencies higher than 1 THz. The model is used to compare the XPM frequency limitations of a conventional and a highly nonlinear dispersion shifted fiber (HN-DSF) and a bismuth oxide-based fiber, introducing the XPM bandwidth as a design parameter. It is shown that the HN-DSF presents the highest XPM bandwidth, above 1 THz, making it the most appropriate for ultrafast wavelength conversion.
View Article and Find Full Text PDF