Ayer Crystalline Complex at Ayer, Harvard, and Clinton, Massachusetts

1976 ◽  
Author(s):  
Richard z. Gore
Keyword(s):  
Crystalline Complex

Preparation and Properties of Human Prothrombin Complex

1970 ◽  
Vol 24 (03/04) ◽  
pp. 325-333 ◽  
Author(s):  
G. H Tishkoff ◽  
L. C Williams ◽  
D. M Brown
Keyword(s):  
Molecular Weight ◽  
Proteolytic Enzyme ◽  
Enzyme Inhibitor ◽  
Specific Activity ◽  
Crystalline Form ◽  
Sedimentation Equilibrium ◽  
Crystalline Complex ◽  
Interaction Product ◽  
Proteolytic Enzyme Inhibitor ◽  
Purification Scheme

SummaryAs a corollary to our previous studies with bovine prothrombin, we have initiated a study of human prothrombin complex. This product has been isolated in crystalline form as a barium glycoprotein interaction product. Product yields were reduced compared to bovine product due to the increased solubility of the barium glycoprotein interaction product. On occasion the crystalline complex exhibited good yields. The specific activity of the crystalline complex was 1851 Iowa u/mg. Further purification of human prothrombin complex was made by removal of barium and by chromatography on Sephadex G-100 gels. The final product evidenced multiple procoagulant activities (II, VII, IX and X). The monomeric molecular weight determined by sedimentation equilibrium in a solvent of 6 M guanidine-HCl and 0.5% mercaptoethanol was 70,191 ± 3,057 and was homogeneous with respect to molecular weight. This product was characterized in regard to physical constants and chemical composition. In general, the molecular properties of human prothrombin complex are very similar to the comparable bovine product. In some preparations a reversible proteolytic enzyme inhibitor (p-aminophenylarsonic acid) was employed in the ultrafiltration step of the purification scheme to inhibit protein degradation.

scholarly journals Crystalline Complex of Allyl Alcohol with Copper(I) Chloride

1967 ◽  
Vol 40 (5) ◽  
pp. 1171-1174 ◽  
Author(s):  
Tetsuya Ogura ◽  
Nobuo Furuno ◽  
Shinichi Kawaguchi
Keyword(s):  
Allyl Alcohol ◽  
Crystalline Complex

Kernquadrupolresonanz(KQR)-Spektroskopie an 35Cl in Komplexverbindungen von Arsentrichlorid, AsCl3, mit einigen aromatischen Kohlenwasserstoffen

1968 ◽  
Vol 23 (2) ◽  
pp. 174-177 ◽  
Author(s):  
D. Biedenkapp ◽  
Alarich Weiss
Keyword(s):  
Nuclear Quadrupole Resonance ◽  
Aromatic Hydrocarbons ◽  
Freezing Point ◽  
Complex Compounds ◽  
Crystalline Complex ◽  
Quadrupole Resonance ◽  
Nuclear Quadrupole

By measuring the 35Cl nuclear quadrupole resonance (NQR) spectra it is shown that AsCl3, like SbCl3, is able to form crystalline complex compounds with aromatic hydrocarbons. Investigation of the freezing-point diagrams reveal the existence of the following compounds: 2 AsCl3 · CeH6; 2 AsCl3 · C10H8; 2 AsCl3 · (C6H5) 2CH2; 2 AsCl3 · p-C6H4 (CH3)2; 2 AsCl3· C6H5C2H5 and AsCl3 · C6H5C2H5. The 35Cl NQR spectra of these compounds are given and compared with the NQR spectra of the analogous SbCl3-complexes.

Tectonomagmatic Evolution of Bimodal Plutons in the Central Anatolian Crystalline Complex, Turkey: A Reply

2005 ◽  
Vol 113 (4) ◽  
pp. 497-499 ◽  
Author(s):  
Yusuf K. Kadioglu ◽  
Yildirim Dilek ◽  
Nilgün Güleç ◽  
Kenneth A. Foland
Keyword(s):  
Crystalline Complex

scholarly journals Uran, thorium a draslík v krystaliniku a paleozoických sedimentech na mapovém listu 14-33 Polička – laboratorní gamaspektrometrie a parciální chemické složení variských plutonitů

2017 ◽  
Vol 24 (1-2) ◽  
Author(s):  
Jiří Zimák
Keyword(s):  
Natural Radioactivity ◽  
Gamma Ray ◽  
Igneous Rocks ◽  
Crystalline Complex ◽  
Rock Samples ◽  
Gamma Ray Spectrometer ◽  
Variscan Granitoids ◽  
Mass Activity ◽  
Geological Units

The paper deals with natural radioactivity of metamorphic and igneous rocks and Palaeozoic sediments within the map sheet 14-33 Polička. Studied rocks belong to three geological units: the Hlinsko Zone (phyllites and quartzites of the Mrákotín Fm., flysch sediments of the Hlinsko-Rychmburk Fm.), the Svratka Crystalline Complex (mainly mica schists, paragneisses, orthogneisses and migmatites, also amphibolites, skarns, erlans and quartzites) and the Polička Crystalline Complex (mica schists, paragneisses to migmatites and the Variscan granitoids are dominant). Concentrations of potassium, uranium and thorium were measured using a laboratory gamma-ray spectrometer in 805 rock samples. Data are tabled and discussed. Natural radioactivity of rocks is evaluated on the basis of the calculated values of mass activity of 226Ra equivalent (am). Slightly increased am values were found in migmatites and orthogneisses of the Svratka Crystalline Complex (187 Bq.kg-1 on average), granites and granodiorites of the Budislav Pluton (216 Bq.kg-1), granodiorites and rocks of a tonalite suite of the Miřetín Pluton (199 and 194 Bq.kg-1). Increased concentrations of uranium and thorium were found in some samples of pegmatite and aplite. Radioactivity of rocks of the Hlinsko-Rychmburk and Mrákotín Fms. can be assessed as relatively low.

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