163 research outputs found
Correlation of trans-Lycopene Measurements by the HPLC Method with the Optothermal and Photoacoustic Signals and the Color Readings of Fresh Tomato Homogenates
The trans-lycopene content of fresh tomato homogenates was assessed by means of the laser photoacoustic spectroscopy, the laser optothermal window, micro-Raman spectroscopy, and colorimetry; none of these methods require the extraction from the product matrix prior to the analysis. The wet chemistry method (high-performance liquid chromatography) was used as the absolute quantitative method. Analytical figures of merit for all methods were compared statistically; best linear correlation was achieved for the chromaticity index a* and chroma C*
Real-time compression feedback for patients with in-hospital cardiac arrest: a multi-center randomized controlled clinical trial
Objective: To determine if real-time compression feedback using a non-automated hand-held device improves
patient outcomes from in-hospital cardiac arrest (IHCA).
Methods: We conducted a prospective, randomized, controlled, parallel study (no crossover) of patients with IHCA in
the mixed medical–surgical intensive care units (ICUs) of eight academic hospitals. Patients received either standard
manual chest compressions or compressions performed with real-time feedback using the Cardio First Angelâ„¢ (CFA)
device. The primary outcome was sustained return of spontaneous circulation (ROSC), and secondary outcomes were
survival to ICU and hospital discharge.
Results: One thousand four hundred fifty-four subjects were randomized; 900 were included. Sustained ROSC was
significantly improved in the CFA group (66.7% vs. 42.4%, P < 0.001), as was survival to ICU discharge (59.8% vs. 33.6%)
and survival to hospital discharge (54% vs. 28.4%, P < 0.001). Outcomes were not affected by intra-group comparisons
based on intubation status. ROSC, survival to ICU, and hospital discharge were noted to be improved in inter-group
comparisons of non-intubated patients, but not intubated ones.
Conclusion: Use of the CFA compression feedback device improved event survival and survival to ICU and hospital
discharge
The Axial Age and the Problems of the Twentieth Century: Du Bois, Jaspers, and Universal History
Direct determination of sulfur by atomic absorption spectrometry in a nitrogen separated nitorus oxide-acetylene flame
The rapid determination of arsenic by optical emission spectroscopy using a microwave induced plasma source and a miniature hydride generation device
Design consideration and temperature determination of an automated graphite furnace cup system used for direct sample introduction for ICP optical emission spectrometry
- …