Results 241 to 250 of about 4,020,209 (289)

Cortisol-to-cortisone ratio postpartum is associated with anti-Müllerian hormone a decade later: evidence from a prospective study. [PDF]

open access: yesEndocr Connect
Joseph G   +11 more
europepmc   +1 more source

A Linear Homocatenated Compound Containing Six Indium Centers

Science, 2006
In contrast to carbon and its heavier congeners, group 13 elements are rarely observed to catenate into linear chains. Here, we find that treatment of indium(I) iodide with a protonated N -xylyl β-diketiminate and a strong potassium base in tetrahydrofuran yields a hexa-indium chain.
Michael S, Hill   +2 more
openaire   +2 more sources

LINEAR CENTERS WITH PERTURBATIONS OF DEGREE 2d + 5

International Journal of Bifurcation and Chaos, 2012
We describe a method for studying the center and isochronicity problems for a class of differential systems in the form of linear center perturbed by homogeneous series of degree 2d + m, where d is a non-negative real number and m is a positive integer. As an application, we classify centers and isochronous centers for a particular case when m = 5.
Huang, Wentao   +2 more
openaire   +1 more source

Centering in Hierarchical Linear Modeling

Communication Methods and Measures, 2008
This paper examines the implications of centering choices when using hierarchical linear modeling. Compared to using a level-1 predictor in its raw metric or as a grand-mean centercept, centering around the group mean can yield different outcomes when estimating and interpreting the level-1 intercept and slope.
openaire   +1 more source

Home - About - Disclaimer - Privacy