ELECTROPHILIC HALOGENATION OF nido-5,6-C^sub 2^B^sub 8^H^sub 12^

Collection of Czechoslovak Chemical Communications;  November 1, 2006 ;     700+ words ...Room-temperature chlorination of the dicarbaborane nido-5,6-C^sub 2^B^sub 8^H^sub 12^ (1) with CCl^sub 4^ in the presence of anhydrous AlCl^sub 3^ yielded a mixture of 7-Cl-5,6-C^sub 2^B^sub 8^H...

POLYHEDRAL MONOCARBABORANE CHEMISTRY. FUNCTIONALITY AND ISOMERISM:...

Collection of Czechoslovak Chemical Communications;  November 1, 2005 ;     700+ words ...Reaction of NC^sub 5^H^sub 4^-2-NH^sub 2^ with the [6-Ph-nido-6-CB^sub 9^H^sub 11^]^sup -^ anion (1) in the presence of hydrated FeCl^sub 3^ gives [6-Ph-9-(NC^sub 5^H^sub 4^-2-NH^sub 2^)-arachno-6-CB^sub 9^H^sub 12^] (4) and thence ...

Modeling of the Solubilities of NiO/NiAl^sub 2^O^sub 4^ and FeO/FeAl^sub...

Metallurgical and Materials Transactions;  February 1, 2004 ;     700+ words ...Experiments to measure the solubilities of NiOTNiAl^sub 2^O^sub 4^ and FeO/FeAl^sub 2^O^sub 4^ were performed, and the results confirmed existing literature values. The solubilities of NiAl^sub...

Thermodynamics and Kinetics of the Formation of Al^sub 2^O^sub 3^/...

Metallurgical and Materials Transactions;  April 1, 2008 ;     700+ words ...The formation of Al^sub 2^O^sub 3^, MgAl^sub 2^O^sub 4^, and MgO has been widely studied in different Al base metal matrix composites, but the studies on thermodynamic aspects of the Al^sub 2^O^sub 3^/ MgAl^sub 2^O^sub 4^/MgO phase equilibria have...

A Direct Free Thyroxine (T^sub 4^) Immunoassay with the Characteristics of...

Clinical Chemistry;  May 1, 2007 ;     700+ words ...Background: Direct free thyroxine (T^sub 4^) measurements have been linked to both T^sub 4^-binding serum protein concentrations and protein-bound T^sub 4^ concentrations. Whether this is evidence of a relationship to total T^sub 4^ concentrations...

Quantitative characterization of the microstructure of two-phase TiB^sub...

Metallurgical and Materials Transactions;  November 1, 2003 ;     700+ words ...Two-phase TiB^sub 2^ + Al^sub 2^O^sub 3^ ceramics with an interconnected or dispersed TiB^sub 2^ (minor)-phase microstructure can be produced by variations in processing parameters. A standard method of quantitative characterization of the microstructural...

cis-Regulatory Elements for Mesophyll-Specific Gene Expression in the...

Plant Cell;  May 1, 2004 ;     700+ words ...C^sub 4^ photosynthesis depends on the strict compartmentalization...mesophyll-specific expression of the gene encoding the C^sub 4^ isoform of phosphoenolpyruvate carboxylase (ppcA1) of the C^sub 4^ dicot Flaveria trinervia. To elucidate and understand...

Thermal Stability, Glass-Formation Ability, and Mechanical Properties of...

Metallurgical and Materials Transactions;  August 1, 2008 ;     700+ words ...Bulk amorphous alloys of (Zr^sub 41.2^Ti^sub 13.8^Cu^sub 12.5^Ni^sub 10^Be^sub 22.5^)^sub 100-x^Nb^sub x^ with x = 0, 5, 11, and 13 were prepared by water quenching. Differential scanning calorimeter (DSC) analysis revealed that the addition of Nb...

Mechanical Behaviors of Chromium- or Niobium-Modified Ni^sub 47.5^Al^sub...

Metallurgical and Materials Transactions;  January 1, 2006 ;     700+ words ...The microstructure of the Ni^sub 47.5^Al^sub 25^Fe^sub 27.5^ alloy was modified by adding Cr or Nb to improve its tensile properties. Increasing the Cr content increased the volume fraction of the interdendritic regions and, subsequently, increased...

A Reinvestigation of Phase Equilibria in the System Al^sub 2^O^sub...

Metallurgical and Materials Transactions;  April 1, 2005 ;     700+ words ...The phase equilibria and liquidus temperatures in the binary SiO^sub 2^-ZnO system and in the ternary Al^sub 2^O^sub 3^-SiO^sub 2^-ZnO system at low Al^sub 2^O^sub 3^ concentrations have been experimentally determined...

Women and Smokers Have Elevated Urinary F^sub 2^-Isoprostane Metabolites:...

Lipids;  October 1, 2008 ;     700+ words ...Abstract F^sub 2^-Isoprostanes (F^sub 2^-IsoPs), regio- and stereoisomers of prostaglandin F^sub 2α^ (PGF^sub 2^), and urinary F^sub 2^-IsoP metabolites including 2,3-dinor-5,6-dihydro-8-iso-PGF^sub 2α^ [2,3-dinor-8-iso-PGF^sub 1α...

The Mechanical Milling of Al/TiO^sub 2^ Composite Powders

JOM;  February 1, 2004 ;     700+ words ...The processing of Al/TiO^sub 2^ composite powders produced by high-energy mechanical milling leads...range of valuable, titanium-based materials. They include Ti(Al,O)Al^sub 2^O^sub 3^ and Ti^sub x^Al^sub y^(O)/Al^sub 2^O^sub 3^ composite powders...

The Effect of Nb and W Alloying Additions to the Thermal Expansion...

Metallurgical and Materials Transactions;  March 1, 2005 ;     700+ words ...The directional thermal expansion and elastic properties of Mo^sub 5^Si^sub 3^, (Mo^sub 0.8^Nb^sub 0.2^)^sub 5^Si^sub 3^, and (Mo^sub 0.85^W^sub 0.15^)^sub 5^Si^sub 3^ have been studied as a function...

Molecular Cloning, Expression, and Characterization of Secretory...

Lipids;  September 1, 2005 ;     700+ words ...ABSTRACT: Phospholipase A^sub 2^ (PLA^sub 2^) activity was investigated in various tissues of tobacco (Nicotiana tabacum). PLA^sub 2^ activity in the flower was 15 times higher than that in the leaf...

Crystallization and Characterization of Substoichiometric Compound (W^sub...

Metallurgical and Materials Transactions;  May 1, 2006 ;     700+ words ...(W^sub 0.5^Al^sub 0.5^)C^sub 0.5^ substoichiometric compound is synthesized by a combination of mechanical milling and high-pressure reactive sintering. X-ray diffraction is used to monitor the phase changes and crystallization of (W^sub 0.5^Al^sub...