In this issue of Pediatrics, Fyfe et al present convincing evidence that cerebral tissue oxygenation index (TOI) is lower in habitually supinesleeping preterm infants placed prone rather than supine, and that the cerebral TOI for preterm infants placed prone is lower than the TOI for term infants placed prone. Increased rates of sudden infant death syndrome (SIDS) among all infants sleeping pro...

The culturally widespread verbal count list (“one, two, three...”), deployed in accord with what Gelman & Gallistel (1978) call the “counting principles,” represents the positive integers1. The counting principles provide an account of how the count list encodes the successor function; i.e. if a numeral “n” refers to cardinal value n and “p” immediately follows “n” in the count list then “p” re...

This paper uses a unique data set of monthly new vehicle sales by detailed model from 19782007, and implements a new identification strategy to estimate the effect of the price of gasoline on consumer demand for fuel economy. We control for unobserved vehicle and consumer characteristics by using within model-year changes in the price of gasoline and vehicle sales. We find a significant demand ...

A method is suggested for the calculation of the DeWitt-Seeley-Gilkey (DWSG) coefficients for the operator √ −∇2 + V (x) basing on a generalization of the pseudodifferential operator technique. The lowest DWSG coefficients for the operator √ −∇2 + V (x) are calculated by using the method proposed. It is shown that the method admits a generalization to the case of operators of the type (−∇2 + V ...

We compared three radioligands for use in a cytoplasmic estrogen-receptor assay, using pooled cytosol from human breast adenocarcinomas. The estrogen receptor content was determined in vitro by a dextran-coated charcoal method involving a 4-h incubation with and without diethylstilbestrol. Tritiated moxestrol failed to come to equilibrium in 4 h, thereby preventing the use of conventional one-c...

Most procedures used for the separation of thyroxine from other iodinecontaining compounds of the thyroid gland are based on either the method of Harington and Randall (I) or that of Leland and Foster (2). In the former the thyroxine is separated from diiodotyrosine by precipitation in a slightly acid medium, whereas in Leland and Foster’s method thyroxine is extracted with butyl alcohol from a...

The primary aim of this work was to determine the interactions of an oxindole alkaloid (mitraphylline) isolated from Uncaria tomentosa with beta-amyloid 1-40 (Abeta1-40 protein) applying the capillary electrophoresis (CE) method. Specifically the Hummel-Dreyer method and Scatchard analysis were performed to study the binding of oxindole alkaloids with Abeta1-40 protein. Prior to these studies e...