We have evaluated three analytical methods for determining inorganic phosphorus in serum applied to the Technicon RA-I000 analyzer: a fully enzymatic colorimetric method based on the specific system purine nucleoside phosphorylase/xanthine oxidase coupled to an indicator colorimetric reaction similar to the Trinder reaction; a chemical method involving the direct UV measurement of the phosphomo...

The structures of glasses prepared by melting mixtures of alkali borosilicate glass and silicon nitride powders and by ammonolysis of porous borosilicate gels were studied using Fourier transform infrared spectroscopy and combustion analysis. Whereas there was little evidence of nitride bond formation in the melt prepared glasses, Si-N and B-N bonding were observed in the gel-derlved glasses. I...

Hadioimmunoassay (RIA) measurements of F-prostaglandins (PGF) were made in uterine venous and peripheral venous plasma. RIA determinations of progesterone (P) were also made in the peripheral venous plasma from the same rats. Concentrations of PGF in uterine venous plasma were lowest between 1000-1200 h of estrus (6.07 ng/ml), peaked at metestrus between 1000-1200 h (12.50 ng/ml), decreased on ...

A pulsed source of positrons has been developed which may be useful for antihydrogen (Iq) formation because it is portable when compared to accelerator-based sources. This positron accumulator uses a Penning-style trap to collect moderated positrons from a radioactive source. The positron pulses may be emitted with repetition rates in the range of 50-1000 Hz, which is appropriate for I:I produc...

Stratigraphic data and ^Ar-39Ar ages for the Early Cretaceous ParaniEtendeka flood basalts indicate that the main magmatic episode lasted for several m.y. (129-134 Ma) and was linked to the northward opening of the South Atlantic Ocean, but with some earlier magmatism (135-138 Ma) found inland far from the eventual oceanic rift. The regional distribution of distinct high-TiN (Urubici, Pitanga, ...

in recent years, economists have paid attention to the relationship between emotions and productivity. economists investigated the bi-directional effect of emotion and subjective well-being, such as happiness, on different economic variables, such as productivity, health, income, and so on. in this paper, we try to study the effect of income on labour force happiness in iran. for this purpose, ...

Let L denote the n th Lucas number, where n is a natural number. n 2 Using elementary techniques, we find all solutions of the equation: Ln px where p is prime and p (i000. KEY Wi’RDS AND PHRASES. Lucas number 1985 AMS SUBJECT CLASSIFICATION CODE. IIB39 1. NTRODUCTION Let. n denote a natural number. Let L denote the n th Lucas number, that is, n L1=1, L2=3, Ln Ln_l+Ln_2 for n_ 3. In [1], J.H.E....

of Comparative Mortality CHILDREN WITH EXSTROPHY OF THE BLADDER Reference: M.T. Macfarlane, J.K. Lattimer and T.W. Hensle, "Improved Life Expectancy for Children with Exstrophy of the Bladder". JA~MA, 242:442-444 (1979). Subjects Studied: The series consists of 163 patients with classical exstrophy of the bladder treated on the Pediatric Urological Service of the Babies Hospital, Columbia-Presb...