Results 81 to 90 of about 9,698,228 (341)

Prediction equations for spirometry in South Africa

open access: yesSouth African Medical Journal, 2013
The South African Guideline for Office Spirometry was recently published. Its aim was to provide an updated guideline for office spirometry in South Africa (SA), thereby improving the quality, standardisation and usefulness of spirometry. The need for local prediction equations based on large, all-inclusive studies of the SA population was highlighted ...
Koegelenberg, Coenraad F N   +2 more
openaire   +3 more sources

Optimal Prediction for Hamiltonian Partial Differential Equations [PDF]

open access: yesJournal of Computational Physics, 2000
Optimal prediction methods compensate for a lack of resolution in the numerical solution of time-dependent differential equations through the use of prior statistical information. We present a new derivation of the basic methodology, show that field-theoretical perturbation theory provides a useful device for dealing with quasi-linear problems, and ...
Chorin, Alexandre J.   +2 more
openaire   +2 more sources

Predictive equations for maximal respiratory pressures of children aged 7–10

open access: yesBrazilian Journal of Physical Therapy, 2017
Highlights • Predictive equations allow comparisons between children with or without changes in respiratory muscle strength.• Predictive equations facilitate the monitoring and control of physical therapy interventions.• Age and biometric measurements ...
G. J. da Rosa   +3 more
semanticscholar   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Predictive equations are inaccurate to assess caloric needs in nonwhite adults from Chile [PDF]

open access: yes, 2020
Objectives: Predictive equations are frequently used to estimate resting energy expenditure (REE) because indirect calorimetry (IC) is not always available and is expensive. The aim of this study was to determine the concordance between the estimation of
Bunout Barnett, Daniel   +4 more
core   +1 more source

Concordance between hypoxic challenge testing and predictive equations for hypoxic flight assessment in chronic obstructive pulmonary disease patients prior to air travel

open access: yesEgyptian Journal of Chest Disease and Tuberculosis, 2016
Background: Patients with chronic pulmonary diseases are at increased risk of hypoxemia when traveling by air. Screening guidelines, predictive equations based on ground level measurements and altitude simulation laboratory procedures have been ...
Mohie Aldeen Abd Alzaher Khalifa   +1 more
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

Body Composition’s Association with Resting Energy Expenditure Prediction in a Large Population Sample from Different Age Groups, Sex, and Physical Activity Levels

open access: yesJournal of Functional Morphology and Kinesiology
Background: Resting energy expenditure (REE) represents 60–75% of total daily energy expenditure and is mainly determined by fat-free mass (FFM). Indeed, the predictive equations vary according to FFM techniques and population characteristics. Therefore,
Lucas Bertoluci Zuquieri   +7 more
doaj   +1 more source

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