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  • GEOPHYSICS  (462)
  • Animals  (292)
  • STRUCTURAL MECHANICS  (279)
  • Inorganic Chemistry  (246)
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  • Molecular Sequence Data
  • 1985-1989  (1,320)
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  • 1
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    Expression and properties of two types of protein kinase C: alternative splicing from a single gene (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-05-29
    Description: Two complementary DNA's, encoding the complete sequences of 671 and 673 amino acids for subspecies of rat brain protein kinase C, were expressed in COS 7 cells. The complementary DNA sequence analysis predicted that the two enzymes are derived from different ways of splicing and differ from each other only in the short ranges of their carboxyl-terminal regions. Both enzymes showed typical characteristics of protein kinase C that responded to Ca2+, phospholipid, and diacylglycerol. The enzymes showed practically identical physical and kinetic properties and were indistinguishable from one of the several subspecies of protein kinase C that occurs in rat brain but not in untransfected COS 7 cells. Partial analysis of the genomic structure confirmed that these two subspecies of protein kinase C resulted indeed from alternative splicing of a single gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ono, Y -- Kikkawa, U -- Ogita, K -- Fujii, T -- Kurokawa, T -- Asaoka, Y -- Sekiguchi, K -- Ase, K -- Igarashi, K -- Nishizuka, Y -- New York, N.Y. -- Science. 1987 May 29;236(4805):1116-20.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3576226" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Brain/enzymology ; Chromatography, High Pressure Liquid ; DNA/genetics ; Nucleic Acid Hybridization ; Protein Kinase C/*genetics/metabolism ; RNA Splicing ; Rabbits ; Rats
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Measurements of nitric oxide and total reactive nitrogen in the Antarctic stratosphere - Observations and chemical implications (1989)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Results are presented on measurements of NO and the sum of reactive nitrogen species, NO(y), which include NO, NO2, NO3, N2O5, HNO3, and ClONO2 (in addition to ClO, O3, H2O, and N2O measurements), obtained aboard the NASA ER-2 aircraft flying over the Antarctica between the latitudes of 53 and 72 deg S during the Airborne Antarctic Ozone Experiment. The boundary of the chemically perturbed region (CPR), as indicated by a sharp increase in the level of ClO, occurred near 66 deg S; outside or equatorward of the CPR, the NO(y) mixing ratios ranged between 6 and 12 ppbv, with values decreasing poleward and reaching total NO(y) levels of 4 ppbv or less within 5-deg poleward of the boundary. Data presented in this paper clearly associate the Antarctic ozone decrease with perturbed conditions of ClO, NO(y), and H2O, which are in turn associated with processes defined as nonstandard heterogeneous chemistry, denitrification, and dehydration, respectively.
    Keywords: GEOPHYSICS
    Type: Journal of Geophysical Research (ISSN 0148-0227); 94; 16665-16
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Emission, absorption and group delay of microwaves in the atmosphere in relation to water vapour content over the Indian subcontinent (1985)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: The advent of satellite communication for global coverage has apparently indicated a renewed interest in the studies of radio wave propagation through the atmosphere, in the VHF, UHF and microwave bands. The extensive measurements of atmosphere constituents, dynamics and radio meterological parameters during the Middle Atmosphere Program (MAP) have opened up further the possibilities of studying tropospheric radio wave propagation parameters, relevant to Earth/space link design. The three basic parameters of significance to radio propagation are thermal emission, absorption and group delay of the atmosphere, all of which are controlled largely by the water vapor content in the atmosphere, particular at microwave bands. As good emitters are also good absorbers, the atmospheric emission as well as the absorption attains a maximum at the frequency of 22.235 GHz, which is the peak of the water vapor line. The group delay is practically independent of frequency in the VHF, UHF and microwave bands. However, all three parameters exhibit a similar seasonal dependence originating presumably from the seasonal dependence of the water vapor content. Some of the interesting results obtained from analyses of radiosonde data over the Indian subcontinent collected by the India Meteorological Department is presented.
    Keywords: GEOPHYSICS
    Type: International Council of Scientific Unions Handbook for MAP, Vol. 18; p 399-404
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
    Electronic Resource
    Electronic Resource
    Berichtigung Darstellung und Kristallstrukturntersuchungen einiger Biureto (thio)phosphate (1987)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 555 (1987), S. 192-192 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19875551221
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  • 5
    Electronic Resource
    Electronic Resource
    Darstellung und Kristallstrukturuntersuchungen einiger Biureto(thio)phosphate (1986)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 540 (1986), S. 307-318 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Crystal Structure Investigations of Some Biureto(thio) phosphatesThe oxidation of ammonium biuretodithiophosphate 1 (NH4 - BDP) results the ammonium biuretomonothiophosphate hydrate 2 (NH4 - BMP · H2O) and the ammonium biuretooxophosphate 3 (NH4 - BOP). In a more convenient way 2 can be obtained by the reaction of 1 with methyl chloroacetate in aqueous NH4HCO3.The sodium and potassium salts or their hydrates are prepared from the ammonium salt via the free biureto(thio)phosphoric acids. The hydrates K - BDP · H2O, NH4 - BMP · H2O, Na - BMP · 2 H2O, and K - BMP · H2O, respectively, can be Dehydrated without decomposition of the cyclic anion.The results of crystal structure investigations of K - BDP · H2O, K - BMP · H2O and NH4 - BOP are reported. The two potassium salts are closely related in their structures.
    Notes: Bei der Oxydation von Ammonium-biuretodithiophosphat 1 (NH4 - BDP) entstehen Ammonium-biuretomonothiophosphat-Hydrat 2 (NH4 - BMP · H2O) und Ammonium-biuretooxophosphat 3 (NH4 - BOP). Die Darstellung Von 2 gelingt einfacher durch Hydrolyse des Biuretothiophosphoryl-mercaptoessigsäuremethylesters in wäßriger NH4HCO3-Lösung. Aus den Ammoniumsalzen werden die Natrium- und Kaliumverbindungen bzw. deren Hydrate über die freien Säuren hergestellt. Die Hydrate K - BDP · H2O, NH4 - BMP · H2O, Na - BMP · 2 H2O und K - BMP · H2O lassen sich ohne Zersetzung des cyclischen Anions entwässern.Die Ergebnisse der Kristallstrukturuntersuchungen an K - BDP · H2O, K - BMP · H2O und NH4 - BOP werden vorgestellt. Die beiden Kaliumsalze erweisen sich als eng verwandt in ihrer Struktur.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19865400934
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  • 6
    Electronic Resource
    Electronic Resource
    Beiträge zur Chemie der Alkylverbindungen von Übergangsmetallen. 50. Eine ungewöhnliche Organolanthanverbindung (1987)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 548 (1987), S. 175-179 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Transition Metal Alkyl Compounds. 50. A non-common Organolanthanum CompoundLanthanum reacts with dibenzyl mercury in tetrahydrofuran as a solvent with splitting of solvent molecules and with formation of ethylene and a benzyl hydrido vinyloxide lanthanum complex of the composition C6H5CH2La(H)OCH=CH2 · 2 THF. This complex, primary well soluble in tetrahydrofuran, is extremely sensitive against air and moisture and undergoes a fast coordination polymerisation with a strong decrease of the solubility.The compound was characterized by elementary analysis, the hydrolysis and deuterolysis reaction, and by the i.r. spectra.
    Notes: Lanthan reagiert mit Dibenzylquecksilber in Tetrahydrofuran als Reaktionsmedium unter Spaltung von Lösungsmittelmolekülen zu Ethylen und einem Benzylhydridovinyloxid-lanthan-Komplex der Zusammensetzung C6H5CH2La(H)OCH=CH2 · 2 THF. Dieser anfangs in Tetrahydrofuran gut lösliche Komplex ist extrem luft- und feuchtigkeitsempfindlich und unterliegt rasch einer Koordinationspolymerisation unter starker Abnahme der Löslichkeit.Die Charakterisierung erfolgte durch Elementaranalyse, Verfolgung der Hydrolyse und Deuterolyse sowie Auswertung des IR-Spektrums.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19875480520
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  • 7
    Electronic Resource
    Electronic Resource
    Doppeloktaeder-Cluster [V2O9] in der Kristallstruktur von Vanadium(III)-diphosphat, V4(P2O7)3 (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 529 (1985), S. 89-96 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Double-Octahedra Clusters [V2O9] in the Crystal Structure of Vanadium (III) Diphosphate, V4(P2O7)3.As the first example for MIII diphosphates the crystal structure of V4(P2O7)3 (“I”) has been determined by means of X-ray diffraction of single crystals. I - according to [7] obtainable by thermal interaction of V2O5, H3PO3, and H3PO4 - crystallizes orthorhombically (data see above); in the unit cell two kinds of isolated doubleoctahedra (clusters) [V2O9], having the symmetry Cs, exist. Due to a mutual face-connection of the octahedra, within these clusters relatively short V-V distances are resulting: 2.774(8) and 3.026(7) Å. The diphosphate anions, O3POPO34- (three kinds; each having the symmetry Cs and staggered conformation), exhibit POP bond angles of 170°, being remarkably large for non-centrosymmetry. Because of the [M2IIIO9] clusters in I, and also in the isostructural diphosphates Cr4(P2O7)3 and Fe4(P2O73), magnetic investigations seem to be challenged.
    Notes: Als erstes Beispiel für MIII-Diphosphate wurde an Einkristallen rötgeno-graphisch die Kristallstruktur von V4(P2O7)3 („I“) bestimmt (Diskrepanz-Index R = 0,094). I - nach [7] herstellbar durch thermische Umsetzung von V2O5, H3PO3 und H3PO4 - kristallisiert orthorhombisch mit a = 7,443(1), b = 9,560(2), c = 21,347(4) Å; V = 1518,9 Å3, Raumgruppe Pmcn (D2h16; No. 62); Z = 4; Dx = 3,17 g cm-1. Im Gitter sind zwei Arten von isolierten Doppel-oktaedern (Clustern) [V2O9] der Symmetrie Cs vorhanden. Infolge einer Flächen-Verknüpfung der Oktaeder resultieren innerhalb der Cluster relativ kurze V-V-Abstände von 2,774(8) und 3,026(7) Å. Die Diphosphat-Anionen O3POPO34- (drei Arten; Symmetrie jeweils Cs; Konformation jeweils gestaffelt), haben für Nicht-Zentrosymmetrie bemerkenswert große POP-Brückenbindungswinkel von 170°. Wegen der [M2IIIO9]-Cluster in I - und auch in den isostrukturellen Diphosphaten Cr4(P2O7)3 und Fe4(P2O7)3 - erscheinen magnetische Untersuchungen angebracht.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855291013
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  • 8
    Electronic Resource
    Electronic Resource
    Beiträge zur Organolanthanoidchemie. I. Synthese und Charakterisierung von Organolanthanoid-Komplexen des Typs Na[Ln(C5H5)4] · nTHF (1989)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 577 (1989), S. 145-154 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to Organolanthanide Chemistry. I. Synthesis and Characterization of Organolanthanide Complexes of Na[Ln(C5H5)4] · nTHF TypeNa[La(C5H5)4] · THF (I) and Na[Pr(C5H5)4] (II) were synthesized from the anhydrous lanthanide chlorides and C5H5Na. Na[Ce(C5H5)4] · THF (III) and Na[Nd(C5H5)4] · THF (IV) were obtained from C5H5Na and (NH4)2[Ce(NO3)6] or (NH4)2[Nd(NO3)5], respectively. The compounds were characterized by elementary analysis, magnetic moments, i.r., 1H- and 13C-n.m.r. spectra, and conductivity measurements. The constitution of I-IV corresponds to the formula [(π-C5H5)3Ln(μ-σ-C5H5)Na(THF)n] (n = 0, 1).In reactions of III with selected organyl, acyl, and organometal halides the σ-bonded C5H5 group is transferred to the substrate.
    Notes: Na[La(C5H5)4]. THF (I) und Na[Pr(C5H5)4] (II) wurden durch Reaktion von wasserfreiem LaCl3 bzw. PrCl3 und Na[Ce(C5H5)4] · THF (III) sowie Na[Nd(C5H5)4] · THF (IV) durch Umsetzung der wasserfreien Nitratokomplexe (NH4)2[Ce(NO3)6] bzw. (NH4)2[Nd(NO3)5] mit C5H5Na hergestellt. Die Verbindungen wurden durch Elementaranalysen, ihre magnetischen Momente, IR-, 1H- und 13C-NMR-Spektren und durch Leitfähigkeitsmessungen charakterisiert. Danach kann die Konstitution von I-IV am besten durch die Formel [(π-C5H5)3Ln(μ-σ-C5H5)Na(THF)n] (n = 0, 1) beschrieben werden.Bei Reaktionen von III mit ausgewählten Organyl-, Acyl- und Organometallhalogeniden wird die σ-gebundene C5H5-Gruppe auf das jeweilige Substrat übertragen.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19895770116
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  • 9
    Electronic Resource
    Electronic Resource
    Beiträge zur Chemie der Alkylverbindungen von Übergangsmetallen. 52. Darstellung, Charakterisierung und Reaktionen von (C5H5)3Ce · THF und Na[Ce(C5H5)4] · THF (1988)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 556 (1988), S. 170-178 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Organo Transition Metal Compounds. 52. Preparation, Characterization, and Reactions of (C5H5)3Ce · THF and Na[Ce(C5H5)4] · THF(C5H5)3 · THF (I) was synthesized in a simple manner by reaction of (NH4)2[Ce(NO3)6] with C5H5Na. With excess C5H5Na the complex Na[Ce(C5H5)4] · THF (II) could be obtained.In addition of cyclovoltammetric and polarographic measurements it was tried without success to transfer I and II into organocerium(IV) compounds by means of different oxidizing agents. II reacts with I2 and (C6H5)3CCl forming Na[(C5H5)3CeI] · THF or Na[(C5H5)2CeI2] · 4 THF and I besides of (C6H5)3CCl respectively. At interaction of I with Co(acac)3 the cobalticinium salt [(C5H5)2Co][C5H5Ce(acac)3] is formed.The compounds obtained were characterized by elementary analysis, hydrolysis products, magnetic moments, i.r., 1H-n.m.r. und u.v.-vis spectra, and measurements of electric conductivity.
    Notes: (C5H5)3 · THF (I) kann auf bequeme Weise durch Umsetzung von (NH4)2[Ce(NO3)6] mit C5H5Na erhalten werden. Bei Verwendung eines Überschusses von C5H5Na entsteht das bisher nicht beschriebene Na[Ce(C5H5)4] · THF (II).Ausgehend von cyclovoltammetrischen und polarographischen Messungen wurden Versuche zur Überführung von I und II in Organocer(IV)-Verbindungen mittels verschiedener Oxydationsmittel angestellt. Diese verliefen negativ im Sinne der Zielstellung. II reagiert mit I2 zu Na[(C5H5)3CeI] · THF bzw. Na[(C5H5)2CeI2]. 4 THF und mit (C6H5)3CCl zu (C5H5)3Ce · THF neben C5H5C(C6H5)3. Bei der Einwirkung von Co(acac)3 auf I entsteht das Cobalticinium-Salz [(C5H5)2Co][C5H5Ce(acac)3].Eine detaillierte Charakterisierung der erhaltenen Verbindungen erfolgte durch ihre Elementaranalysen, Hydrolysenprodukte, magnetischen Momente, IR-, 1H-NMR- und Elektronenspektren sowie durch Leitfähigkeitsmessungen.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19885560118
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  • 10
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    Recombinant human granulocyte colony-stimulating factor: effects on normal and leukemic myeloid cells (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-04-04
    Description: Experiments were conducted to isolate and characterize the gene and gene product of a human hematopoietic colony-stimulating factor with pluripotent biological activities. This factor has the ability to induce differentiation of a murine myelomonocytic leukemia cell line WEHI-3B(D+) and cells from patients with newly diagnosed acute nonlymphocytic leukemia (ANLL). A complementary DNA copy of the gene encoding a pluripotent human granulocyte colony-stimulating factor (hG-CSF) was cloned and expressed in Escherichia coli. The recombinant form of hG-CSF is capable of supporting neutrophil proliferation in a CFU-GM assay. In addition, recombinant hG-CSF can support early erythroid colonies and mixed colony formation. Competitive binding studies done with 125I-labeled hG-CSF and cell samples from two patients with newly diagnosed human leukemias as well as WEHI-3B(D+) cells showed that one of the human leukemias (ANLL, classified as M4) and the WEHI-3B(D+) cells have receptors for hG-CSF. Furthermore, the murine WEHI-3B(D+) cells and human leukemic cells classified as M2, M3, and M4 were induced by recombinant hG-CSF to undergo terminal differentiation to macrophages and granulocytes. The secreted form of the protein produced by the bladder carcinoma cell line 5637 was found to be O-glycosylated and to have a molecular weight of 19,600.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Souza, L M -- Boone, T C -- Gabrilove, J -- Lai, P H -- Zsebo, K M -- Murdock, D C -- Chazin, V R -- Bruszewski, J -- Lu, H -- Chen, K K -- CA00966/CA/NCI NIH HHS/ -- CA20194/CA/NCI NIH HHS/ -- CA32516/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1986 Apr 4;232(4746):61-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2420009" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation/drug effects ; Cell Line ; Colony-Forming Units Assay ; Colony-Stimulating Factors/genetics/*pharmacology ; DNA/metabolism ; Escherichia coli/genetics ; Genes ; Granulocyte Colony-Stimulating Factor ; Granulocytes/*physiology ; Humans ; Leukemia/*pathology ; Leukemia, Myeloid/pathology ; Mice ; Plasmids ; Recombinant Proteins/*pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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