Background Spirometry is the single most important test for the evaluation of respiratory function. The results are interpreted by comparing measured data with predicted values previously obtained from a reference population. Reference equations for spirometry have been discussed previously. The aim of this study was to compare reference values based on National Health and Nutrition Assessment ...

M. P. Luttje, M. Wyss, N. Zölch, A. Fuchs, R. A. Edden, S. Heinzer, P. Bösiger, and A. Henning Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Zurich, Switzerland, Contributed equally, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States, F.M. Kirby Research Center for Functio...

Many approaches to unconstrained face identification exploit small patches which are unaffected by distortions outside of their locality. However, small patches have limited discriminative ability, making accurate patch matching difficult. We propose a novel blockbased approach to exploit the greater discriminative information in larger areas, while maintaining robustness to local variations. A...

It is generally believed that the spatial distribution of galaxies does not trace that of the total mass. The understanding of the bias effect is therefore necessary to determine the cosmological parameters and the primordial density fluctuation spectrum from the galaxy survey. The deterministic description of bias may not be appropriate because of the various stochasticity of galaxy formation ...

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Abstract Background The quantity and quality of Brazilian scientific output increases decade by decade. However, there is a tendency to undervalue journals, illustrated the low number citations compared with texts in international tacit justification that foreign articles are superior quality. Objectives To investigate differences numbers periodicals three journals from 2016 2020. Methods All p...