10 research outputs found
XeCl-laser-generated ablation products from a nitrogen-rich polymer studied by laser-ionization mass spectrometry
Laser-ionization mass-spectrometric studies on laser ablation of a nitrogen-rich polymer at 532 nm and 1064 nm
Regional differences in gallbladder cancer pathogenesis: Insights from a comparison of tumor mutations
Remissionsinduktion und -erhaltung bei Erwachsenen mit akuter, nicht lymphozyt�rer Leuk�mie mittels modifiziertem COAP-Schema
Gas chromatography of copper (II), nickel (II), palladium (II) and vanadium (IV) using atomic emission detector and β-ketoamine Schiff bases derived from stilbenediamines
EFFECTS OF PERINATAL EXPOSURE TO FLUTAMIDE ON SEX HORMONE RESPONSIVENESS IN F1 MALE RATS
A standard calculation methodology for human doubly labeled water studies
The doubly labeled water (DLW) method measures total energy expenditure (TEE) in free-living subjects. Several equations are used to convert isotopic data into TEE. Using the International Atomic Energy Agency (IAEA) DLW database (5,756 measurements of adults and children), we show considerable variability is introduced by different equations. The estimated rCO(2) is sensitive to the dilution space ratio (DSR) of the two isotopes. Based on performance in validation studies, we propose a new equation based on a new estimate of the mean DSR. The DSR is lower at low body masses (<10 kg). Using data for 1,021 babies and infants, we show that the DSR varies non-linearly with body mass between 0 and 10 kg. Using this relationship to predict DSR from weight provides an equation for rCO(2) over this size range that agrees well with indirect calorimetry (average difference 0.64%; SD = 12.2%). We propose adoption of these equations in future studies