Experimental study of the sensitivity of a porous silicon ring resonator sensor using continuous in-flow measurements.

A highly sensitive photonic sensor based on a porous silicon ring resonator was developed and experimentally characterized. The photonic sensing structure was fabricated by exploiting a porous silicon double layer, where the top layer of a low porosity was used to form photonic elements by e-beam lithography and the bottom layer of a high porosity was used to confine light in the vertical direction. The sensing performance of the ring resonator sensor based on porous silicon was compared for the different resonances within the analyzed wavelength range both for transverse-electric and transverse-magnetic polarizations.

Infusion phlebitis in patients with acute pneumonia: a prospective study.

Study Objectives: To prospectively assess the relative risk for phlebitis in a series of consecutive patients with pneumonia and to identify risk factors that predict an increased risk for phlebitis.

Setting: Internal medicine department of a tertiary teaching hospital.

Patients: Seven hundred sixty-six consecutive patients with acute pneumonia receiving IV therapy.