www.ajcconline.org • BACKGROUND Pulse oximetry is commonly used to monitor oxygenation in neonates, but cannot detect variations in hemoglobin. Venous and arterial oxygen saturations are rarely monitored. Few data are available to validate measurements of oxygen saturation in neonates (venous, arterial, or pulse oximetric). • PURPOSE To validate oxygen saturation displayed on clinical monitors ...

White light spectroscopy non-invasively measures hemoglobin saturation at the capillary level rendering an end-organ measurement of perfusion. We hypothesized this technology could be used after microvascular surgery to allow for early detection of ischemia and thrombosis. The Spectros T-Stat monitoring device, which utilizes white light spectroscopy, was compared with traditional flap monitori...

The history of backfilling underground mined-out voids dates back to the beginning mining several centuries ago using rockfill. Currently, there are three major types backfill: rock, hydraulic, and paste fill. When backfill is required be exposed from beside or underneath, cement binder added. Cemented hydraulic fill most commonly used as it has existed for over 80 years. In early 1960s, a seri...

Permeabilized germlings from the dimorphic fungus Mucor rouxii were used for in situ measurement of protein kinase A (PKA) activation, to compare the results with those obtained in vitro at low or high (nonlinear) enzyme concentrations. The apparent total activity per cell when measured in situ is 5- to 10-fold lower than the in vitro measured activity in crude extracts from those cells. Polyam...

Monitoring the biochemistry of aquatic ecosystems is critical to understanding biogeochemical cycling induced by microorganisms. They play a vital role in climate-gaseous drivers associated with natural ecosystems, such as methane emission wetlands and peatlands; gas fixation: methane, sulfur, carbon, nitrogen; water quality assessment remediation; monitoring oxygen saturation due contamination...