Paula Magalhães, Beatriz Pereira, Francisco Garcia, Catarina Vilas, Tânia Moreira, Pedro Rosário
Changes in Student's Breakfast and Snack Consumption during the Second COVID-19 Lockdown in Portugal: A Five-Wave Study
International journal of environmental research and public health
rate exchange urea across membranes human erythrocytes red blood cells quantified 1s 2min timescale 13curea hyperpolarized subjected rapid dissolution previously reported partial resolution 13c nmr resonances molecules inside outside red blood cells suspensions observed enabled stoppedflow type experiment measure initially zerotrans transport urea sequential singlepulse 13c nmr spectra every second 2 min data analyzed using bayesian reasoning markov chain monte carlo method set simultaneous nonlinear differential equations described nuclear magnetic relaxation combined transmembrane exchange results contribute quantitative understanding ureaexchange kinetics whole body methodological approach likely applicable cellular systems tissues vivo