Results 11 to 20 of about 4,536,505 (278)
Copper:caeruloplasmin ratio [PDF]
Investigation of copper status can be a diagnostic challenge. The non-caeruloplasmin-bound copper (NCC) has deficiencies; accordingly, the copper:caeruloplasmin ratio has been suggested as an alternative index of copper status. A reference interval for this index was derived.
Patrick J, Twomey +4 more
openaire +2 more sources
A note on methods for analysis of time to event data and interpretation of hazard ratio.
Trkulja, Vladimir, Hrabač, Pero
openaire +3 more sources
Universal Shapes? Analysis of the Shape of Antarctic Tafoni
Using dimensional data from over 700 tafoni in Antarctica, this paper identifies how the dimensionless ratios of width/length (W/L) and depth/length (D/L) vary with tafoni length. The analysis suggests that these ratios do tend to converge to values that
Rob Inkpen, Kevin Hall
doaj +1 more source
The role of financial analysis in ensuring economic security of agricultural enterprise [PDF]
Financial analysis is important for ensuring the economic security of an economic entity, since this aspect implements the protection of the financial interests of a commercial organization in the process of its life. As a result, it becomes necessary
E. V. Bannikova +2 more
doaj +1 more source
Imaging findings in patellar tendinopathy are questioned. The aim of this pilot study was to characterize ultrasound measures, by calculating ultrasound ratio and neovascularization of the patellar tendon in non-elite sport players with unilateral ...
José L. Arias-Buría +6 more
doaj +1 more source
Sex ratio theory attempts to explain variation at all levels (species, population, individual, brood) in the proportion of offspring that are male (the sex ratio). In many cases this work has been extremely successful, providing qualitative and even quantitative explanations of sex ratio variation.
West, Stuart A +2 more
openaire +6 more sources
What’s the Risk: Differentiating Risk Ratios, Odds Ratios, and Hazard Ratios? [PDF]
Risk ratios, odds ratios, and hazard ratios are three common, but often misused, statistical measures in clinical research. In this paper, the authors dissect what each of these terms define, and provide examples from the medical literature to illustrate each of these statistical measures.
George, Andrew +2 more
openaire +2 more sources
Astrometric mass ratios for three spectroscopic binaries [PDF]
The orbits of five single-lined spectroscopic binaries have recently been determined. We now use astrometric measurements that were collected with the Hipparcos satellite to constrain the systems' mass ratios and secondary masses.
Fekel, F. C., Sahlmann, J.
core +3 more sources
Enantiomer fractions instead of enantiomer ratios [PDF]
The use of enantiomer ratios (ERs) to indicate the relative amounts of a pair of enantiomers in a sample has some disadvantages. Enantiomer fractions (EFs) are proposed as all alternative expression to eliminate the difficulties.
Boer, J. de +3 more
core +3 more sources
RESUMEN Objetivo: Determinar y describir la situación laboral de las enfermeras del ámbito de la geriatría de la provincia de Barcelona, así como su percepción.
Ester López Luna +7 more
doaj +1 more source

