Melt densities in the Na2O-FeO-Fe2O3-SiO2 system and the partial molar volume of tetrahedrally-coordinated ferric iron in silicate melts

The densities of 12 melts in the Na2O-FeO-Fe2O3-SiO2 system have been determined in equilibrium with air, in the temperature range of 1000–1500°C, using the double bob, Archimedean technique. Ferrous iron determinations of 100–200 mg samples, “dip” quenched from high temperature, indicate that all the melts investigated were highly oxidized under these experimental conditions. 57Fe Mössbauer spectra of glasses obtained by drop quenching 80 mg melt samples from loop equilibration runs yield Fe3+/Fe2+ data equivalent to that for the densitometry (dip) samples for all but the most viscous melt, and confirm that all but one melt equilibrated with air during the densitometry measurements. Melt densities range from 2.17 to 2.88 g/cm3 with a mean standard deviation (from replicate experiments) of 0.36%. Least squares regression of the density data at 1300, 1400 and 1500°C, was calculated, both excluding and including excess volume terms (herein named linear and nonlinear fits, respectively) and the root mean squared deviation (RMSD) of each regression was compared with the total experimental error. The partial molar volumes computed for linear fits for Na2O and SiO2 are similar to those previously reported for melts in the Na2O-Al2O3-SiO2 system (Steinet al., 1986). The partial molar volumes of Fe2O3 obtained in these linear fits are equal to those obtained by Shiraishi et al. (1978) in the FeO-Fe2O3-SiO2 system but 5 to 10% lower than reported by Mo et al. (1982) in multicomponent melts. The partial molar volume exhibited by Fe3+ in this system is representative of the partial molar volume of tetrahedrally coordinated Fe3+ in silicate melts

Differntial Diagnosis of Hypertension

The overwhelming majority of hypertensive patients have essential hypertension, which is a potent risk factor in producing vascular disease. Overall, it must be stated that the differential diagnosis of hypertension is a relatively minor factor in approaching the tremendous challenge of detecting and adequately treating the overwhelming majority of patients who are now undetected, untreated, or inadequately treated

Bankruptcy-Fradulent Transfers-Venue for Plenary Actions Under Section 70(e)

Plaintiff trustee in bankruptcy brought a plenary action under section 70(e) of the Bankruptcy Act in the Federal District Court for the Northern District of Illinois for recovery of fraudulently transferred property located within the district. The defendants were citizens of Illinois, except the bankrupt\u27s daughter, a California citizen. The district court granted the daughter\u27s motion to dismiss for lack of venue. On appeal, held, reversed and remanded. Sections 23(b) and 70(e)(3) of the Bankruptcy Act exclude actions under section 70(e) from the requirements of the general venue provision of Title 28, U.S.C.; in all cases under section 70(e) except those for monies only, venue is governed by the location of the real or personal property in dispute. Yorke v. Frank, 295 F.2d 580 (7th Cir. 1961), cert. denied, 369 U.S. 818 (1962)

Workshop Presided by William A. Dickinson, Jr.

Workshop presided by William A. Dickinson, Jr. Transcript of three cases that were discussed

Taxation-Federal Income Tax-Divocrce Property Settlement as a Taxable Event

Respondent taxpayer transferred stock to his former wife pursuant to a voluntary property settlement agreement incorporated in their divorce decree. As consideration for the securities conveyed, his wife released her rights to alimony, dower, and intestate succession under Delaware law. The Commissioner of Internal Revenue assessed as taxable gain the difference between the taxpayer\u27s basis for the stock and its market value at the time of the transfer, but the Court of Claims ruled that the taxpayer realized no taxable gain from the transfer. On certiorari, held, reversed. The exchange was a taxable event in which the taxpayer received property equivalent in value to the market worth of the securities transferred. United States v. Davis, 370 U.S. 65 (1962)

Labor Law--Federal Pre-emption--Scope of Arguable NLRB Jurisdiction

Picketing by petitioner interrupted the unloading of respondent\u27s cargo vessels. A state court granted respondent\u27s request for a permanent injunction against further picketing, despite petitioner\u27s contention that, since it was a labor organization within the meaning of section S(b) of the Labor Management Relations Act and respondent had alleged an unfair labor practice, the National Labor Relations Board had exclusive jurisdiction of the dispute. The Supreme Court of Minnesota affirmed the granting of injunctive relief. On certiorari to the United States Supreme Court, held, reversed, one Justice dissenting. Since an unfair labor practice has been alleged and petitioner is arguably a labor organization, state and federal courts must yield to the primary authority of the NLRB to determine whether it has jurisdiction of the controversy. Marine Eng\u27rs Beneficial Ass\u27n v. Interlake S.S. Co., 370 U.S. 173 (1962)