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  • 1995-1999  (3)
  • 1975-1979
  • siloxanes  (2)
  • Bildatlas  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Der Ophthalmologe 95 (1998), S. 507-510 
    ISSN: 1433-0423
    Keywords: Key words Internet - Ophthalmological information ; Schlüsselwörter Internet ; Ophthalmologische Informationen ; Bildatlas
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Durch das steigende Informationsangebot und einen relativ leichten Einstieg finden immer mehr Ophthalmologen Zugang zum Internet. Ein jederzeit und jederorts abrufbarer ophthalmologischer Befundbildatlas mit zugehörigem ICD-Schlüssel im World Wide Web bietet verschiedene Möglichkeiten, wie z.B. Aufruf eines typischen Befundbildes zum differentialdiagnostischen Vergleich, zur eigenen Weiterbildung oder Verwendung für den eigenen Bedarf (u.a. Präsentationen). Bis jetzt wurden bereits über 500 typische Befundbilder ausgewählt, digitalisiert und in eine Datenbank integriert, die über 4700 ICD-standardisierte und -codierte Diagnosen enthält. Bildbezogene Diagnosen und die Bilder werden mit dieser Datenbank verknüpft. Nach Eingabe eines diagnostischen Suchbegriffs bewirken spezielle Programmskripte die Datenbanksuche und die Ausgabe der Suchergebnisse in automatisch erstellten Web-Seiten. Die gefundenen Bilder werden zur Minimierung des Datentransfers zunächst in Kleinformat (Thumbnails) ausgegeben und sind auf Mausklick im Vollformat zu erhalten. Neben Diagnose und ICD-Schlüssel-Nummer werden zu jedem Bild der Autor, ein diagnostischer Hinweis (Hausdiagnose) und ein Kommentar bzw. Kommentarmöglichkeit angeboten. Der von uns entwickelte Gießener Ophthalmologische Bildatlas ist unter der Internetadresse www.med.uni-giessen.de [Überlokale Infosysteme] abrufbar. Er ermöglicht einen gezielten, raschen und kostenlosen Diagnose- und Befundbildabruf mit zugehörigem ICD-Schlüssel und stellt eine sinnvolle Ergänzung zum Studium von gedruckten ophthalmologischen Bildatlanten dar.
    Notes: The Internet has become a powerful, international source for information, and it has shown an exponential growth because of the ease of access and the immediate availability of information. We introduced a new ophthalmological atlas including ICD coding on the World Wide Web. So far, more than 500 lantern slides of typical and interesting ophthalmological findings have been selected and digitized. These pictures were integrated in a data base, which was arranged for ease and speed of search and retrieval. In its background, the data base contains a list of over 4700 ICD-encoded diagnoses to which the picture-documented findings are linked. Comments on pictures can be added by the author or by users. The data base contains several lists, such as a list of ICD codes and diagnoses, a list of all pictures with corresponding diagnoses, a list of all diagnoses and number of picture, a list of those diagnoses for which the corresponding picture is available, as well as a list of comments on each picture. Special program scripts handle the user's search key words for diagnoses and extract the required information out of the data base, using Windows NT. Search results are presented on an automatically built-up webpage. To provide fast speed of search all pictures initially are shown in a small format (thumbnails) with little amount of data. The related full-size picture is retrieved by a single mouse click. Moreover, the name and institution of the author, diagnostical hints and comments on pictures by the author or by users are offered for each diagnosis available. The Giessen Ophthalmological Picture Atlas can be reached under www.med.uni-giessen.de in the Internet. It allows a fast search free of charge from all over the world and, therefore, offers an additional option to obtain specific ophthalmological information for various purposes.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0268-2605
    Keywords: siloxanes ; carbohydrate modified ; surfactants ; saccharide ; Chemistry ; Industrial Chemistry and Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: New siloxanyl-modified carbohydrate surfactants of the amide and glycoside type have been synthesized by coupling between defined as well as higher-molecular-weight siloxanes and carbohydrate structures via spacers of different lengths and hydrophilic power. Linear and branched monohydrogen di-, tri-, tetra- and penta-siloxanes and polyhydrogen siloxanes as well as mono- and di-saccharide lactone structures have been found to be good starting materials for the synthesis of amides, often in quantitative yield, whereas glycosides had to be prepared in low-yield multistep sequences including protection/deprotection steps. Selected strategies were applied to polysiloxanes yielding quantitatively a broad variety of carbohydrate-modified comb-like structures. The new substances were characterized by means of 13C NMR spectroscopy, GC, capillary GC, GC-MS coupling and elemental analysis.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Applied Organometallic Chemistry 10 (1996), S. 437-450 
    ISSN: 0268-2605
    Keywords: siloxanes ; surfactant ; carbohydrate ; amino ; regioselective ; Chemistry ; Industrial Chemistry and Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Branched siloxanyl-modified carbohydrate surfactants have been synthesized by coupling mono-, di- and poly-functional siloxanes to carbohydrate units either via a branched spacer or by attaching a separate modifying element to a straight-chained structure. Hydrophilic as well as extremely hydrophobic elements have been incorporated successfully. Siloxanyl-modified carbohydrates bearing a secondary amino function were alkylated in regioselective reactions by different epoxides ranging from glycidol- to siloxanyl-modified allyl glycidyl ether derivatives. Alternatively, carbohydrate-modified piperazinyl structures yielded cyclic subunits after alkylation. Structures bearing two identical hydrophilic groups are accessible by alkylation of carbohydrate-modified bisamides. The derivatives synthesized were characterized by means of GC, NMR and elemental analysis.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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