Designing qualitative research
Objectives: This study investigated the relationship between sleep quality during pregnancy and preterm birth. \nMethods: This longitudinal study was conducted between Augus...
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1,475 publications
Free Energy of a Nonuniform System. I. Interfacial Free Energy
It is shown that the free energy of a volume V of an isotropic system of nonuniform composition or density is given by : NV∫V [f0(c)+κ(▿c)2]dV, where NV is the number of molecul...
The 2016 revision to the World Health Organization classification of myeloid neoplasms and acute leukemia
Abstract The World Health Organization (WHO) classification of tumors of the hematopoietic and lymphoid tissues was last updated in 2008. Since then, there have been numerous ad...
The basics of epithelial-mesenchymal transition
The origins of the mesenchymal cells participating in tissue repair and pathological processes, notably tissue fibrosis, tumor invasiveness, and metastasis, are poorly understoo...
Chemistry with ADF
Abstract We present the theoretical and technical foundations of the Amsterdam Density Functional (ADF) program with a survey of the characteristics of the code (numerical integ...
Functional connectivity in the motor cortex of resting human brain using echo‐planar mri
Abstract An MRI time course of 512 echo‐planar images (EPI) in resting human brain obtained every 250 ms reveals fluctuations in signal intensity in each pixel that have a physi...
Mendelian randomization with invalid instruments: effect estimation and bias detection through Egger regression
An adaption of Egger regression (which we call MR-Egger) can detect some violations of the standard instrumental variable assumptions, and provide an effect estimate which is no...
A Set of Measures of Centrality Based on Betweenness
A family of new measures of point and graph centrality based on early intuitions of Bavelas (1948) is introduced. These measures define centrality in terms of the degree to whic...
Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes
Laser light with a Laguerre-Gaussian amplitude distribution is found to have a well-defined orbital angular momentum. An astigmatic optical system may be used to transform a hig...
<b>Hard and Soft Acids and Bases</b>
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHard and Soft Acids and BasesRalph G. PearsonCite this: J. Am. Chem. Soc. 1963, 85, 22, 3533–3539Publication Date (Print):November 1,...
Dexamethasone in Hospitalized Patients with Covid-19
In patients hospitalized with Covid-19, the use of dexamethasone resulted in lower 28-day mortality among those who were receiving either invasive mechanical ventilation or oxyg...