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  • Inorganic Chemistry  (11,675)
  • Physics  (4,401)
  • Industrial Chemistry
  • 1990-1994  (3,675)
  • 1970-1974  (8,277)
  • 1965-1969  (7,566)
Collection
Keywords
Publisher
Language
Years
Year
  • 1
    Unknown
    Partial differential equations in physics : lectures on theoretical physics (1967)
    New York : Academic Press
    Details
    Keywords: DDC 515/.353 ; LC QA371 ; Differential equations, Partial ; Physics
    Pages: Online-Ressource (xi, 335 pages)
    ISBN: 9780126546569
    URL: http://www.sciencedirect.com/science/publication?issn=00798169&volume=1
    Language: English
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    E-BOOK
  • 2
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    Unknown
    The meaning of hydrophobicity (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-10-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dill, K A -- New York, N.Y. -- Science. 1990 Oct 12;250(4978):297-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmaceutical Chemistry, School of Pharmacy, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2218535" target="_blank"〉PubMed〈/a〉
    Keywords: Energy Transfer ; Physical Phenomena ; Physics ; *Protein Conformation ; Proteins/*chemistry ; Solutions
    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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    PAPER CURRENT
  • 3
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    Superconducting Super Collider. Senate issues a stay of execution (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hamilton, D P -- New York, N.Y. -- Science. 1992 Aug 7;257(5071):737.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1496387" target="_blank"〉PubMed〈/a〉
    Keywords: *Government Agencies ; Physical Phenomena ; Physics ; Politics ; *Research Support as Topic ; United States
    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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    PAPER CURRENT
  • 4
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    Science, citation, and funding (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-03-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1991 Mar 22;251(5000):1408-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2006414" target="_blank"〉PubMed〈/a〉
    Keywords: Astronomical Phenomena ; Astronomy ; Physical Phenomena ; Physics ; Publishing/*trends ; Research Support as Topic ; Science/*methods ; Sociology
    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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    PAPER CURRENT
  • 5
    Electronic Resource
    Electronic Resource
    Calcium phosphates in pharmaceutical tableting (1993)
    Springer
    Pharmacy world & science 15 (1993), S. 105-115 
    Details
    ISSN: 1573-739X
    Keywords: Calcium phosphates ; Drug compounding ; Excipients ; Particle size ; Physics ; Powders ; Tablets
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Ten commercially available calcium phosphates used for direct tableting were evaluated. The particle size distributions, powder properties, Sorption isotherms and pH values of aqueous slurries were compared. All samples showed good or at least sufficient flowability. Scanning electron micrographs illustrated the different kinds of manufacturing and gave hints on their expectable behaviour under compaction pressure. The sorption isotherms of identical chemical substances, which had been manufactured by different methods, differed strongly. This can be related to their specific surface areas. Most of the hydroxylapatites have large surface areas and can absorb up to more than 15% water at 93% relative humidity. Dibasic calcium phosphate dihydrate was non-hygroscopic and absorbed less than 1% water. With the exception of monobasic calcium phosphate monohydrate all calcium phosphates behaved quite neutral in water. Monobasic calcium phosphate monohydrate can be regarded as a solid acid. Although the calcium phosphates are usually stable substances, the role of crystal water in the case of dibasic calcium phosphate dihydrate and monobasic calcium phosphate monohydrate is problematic due to possible interactions with active ingredients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02113938
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    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Reaktionen aktiver Methylenverbindungen mit Aziden, V. Über ein α-Diazo-β-keto-sulfon (1965)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 98 (1965), S. 36-45 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 2.3-Dihydro-thionaphthenon-(3)-1.1-dioxid (III), für das eine ergiebige Synthese beschrieben wird, bildet mit p-Tosylazid das Hydrazon VIII. Beim Erwärmen in stark polaren, „basischen“ Lösungsmitteln wie Äthylenglykol, Dimethylformamid oder Dimethylsulfoxid entkuppelt VIII zu dem α-Diazo-β-keto-sulfon IX und III. Einige Verkochungs- und Azo-Kupplungsreaktionen von IX mit trans-fixierten β-Diketonen zu Azoverbindungen werden beschrieben.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19650980105
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Darstellung und Eigenschaften von Bis-trifluormethylsulfenyl-uretidin-dion (1965)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 98 (1965), S. 111-113 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die cyclische Dimerisierung von F3CSNCO und die quantitative Hydrolyse des Dimeren zu N.N′-Bis-trifluormethylsulfenyl-harnstoff und Kohlendioxid werden untersucht. Die daraus gefolgerte Struktur eines Bis-trifluormethylsulfenyl-uretidin-dions steht im Einklang mit dem IR- sowie dem 19F-NMR-Spektrum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19650980113
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  • 8
    Electronic Resource
    Electronic Resource
    Die katalytische Wirkung von Tetraalkylharnstoffen bei der Umsetzung von Phosgen mit 1.3-Dimethyl-barbitursäure (1965)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 98 (1965), S. 131-139 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Tetraalkylharnstoffe zeigen einen starken katalytischen Effekt bei der Umsetzung von 1.3-Dimethyl-barbitursäure mit Phosgen. Die Struktur der erhaltenen Verbindungen wird aufgeklärt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19650980117
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  • 9
    Electronic Resource
    Electronic Resource
    Substitutionsreaktionen an Di-benzol-chrom und verwandten Verbindungen, III. Neue Di-benzol-chrom-Derivate (1965)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 98 (1965), S. 175-185 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Metallierung des Di-benzol-chroms(0) mit Amylnatrium konnte zu einer präparativen Methode für die Darstellung substituierter Di-benzol-chrom-Verbindungen ausgebaut werden. Es wurden die Abfangreaktionen mit CO2, CH2O, CH3CHO, C6H5CHO und (C6H5)2CO untersucht. Aus dem Gemisch der verschiedenen Substitutionsprodukte konnten jeweils die Monosubstitutionsprodukte isoliert werden. Die Konstitutionen der Verbindungen wurden durch gaschromatographische Untersuchung der abgespaltenen Aromaten ermittelt. Die Carboxylatgruppen konnten mit Dimethylsulfat verestert, die primären und sekundären Alkohole dehydriert werden. Mit den Carbonyl-Verbindungen wurden LiAlH4-Reduktionen und Grignard-Additionen durchgeführt. Sowohl der Effekt des Di-benzol-chrom-Restes auf die Reaktionen der organischen Seitenkette als auch der Einfluß der Substituenten auf den komplexen Molekülteil werden diskutiert. Im Falle der Carbonsäureester wurden auch die Di-, Tri-und Tetrasubstitutionsprodukte gefaßt und strukturell gesichert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19650980123
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  • 10
    Electronic Resource
    Electronic Resource
    Polycyclische Verbindungen, XV. Peropyren und 5′-Methyl-naphtho-[3′.4′: 3.4]-pyren (1965)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 98 (1965), S. 208-221 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Das sarkomerzeugende, heptacyclische Peropyren (IX) wurde aus dem Benzpyrenderivat IVb in einer Vierstufenreaktion synthetisiert. Ein Zwischenprodukt dieser Synthese ließ sich in das Methyl-naphthopyren XI überführen.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19650980127
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