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  • 1
    Electronic Resource
    Electronic Resource
    Teaching fibreoptic intubation in anaesthetised patients (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 49 (1994), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: One hundred ASA grade 1 and 2 patients requiring orotracheal intubation for various general surgical procedures were randomly assigned to receive either expert rigid laryngoscopic or novice fibreoptic orotracheal intubation under total intravenous anaesthesia. Five anaesthesia residents in the 4th year, with no prior experience in fibreoptic laryngoscopy, participated in a fibreoptic training course, viewing two instructional videos and practising on the intubation manikin. Each resident intubated 20 patients in a randomised fashion either as an expert laryngoscopist or as a fibreoptic novice. The time (SEM) to achieve successful intubation was statistically different for fibreoptic and rigid intubation (77.2 (5.1) s vs 17.7 (1.6) s, p 〈 0.01). The time to achieve successful rigid laryngoscopic intubation remained constant over the ten intubations, whereas time required for fibreoptic intubation decreases significantly (p 〈 0.01). The learning objectives (fibreoptic intubation times in 60 s or less and with 90% or greater success rate on the first intubation attempt) were met by all residents. The haemodynamic profile was similar for fibreoptically intubated and conventionally intubated patients and there was no difference between the first two or the last two fibreoptive or rigid intubations. The study was designed to detect a difference of 10% in means (assuming β= 0.05 and 0.2). The incidence of postoperative sore throat, dysphagia or hoarsensess was similar in both groups. We conclude that routine fibreoptic orotracheal intubation in ASA grades 1 and 2 surgical patients is justifiable for teaching this valuable technique. since it increases clinical exposure to fibreoptic intubation, which should be learned and mastered by all anaesthetic residents by completion of their residency.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1994.tb14187.x
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  • 2
    Electronic Resource
    Electronic Resource
    Beobachtung von feststoffumwandlungen mit simultaner dta- und mikrowellenabsorptions- messung
    Amsterdam : Elsevier
    Thermochimica Acta 57 (1982), S. 309-315 
    Details
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6031(82)80042-7
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  • 3
    Electronic Resource
    Electronic Resource
    Zur Kenntnis von Ag6(SO4)(SiO4) (1974)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 408 (1974), S. 205-208 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: About Ag6(SO4)(SiO4)Hitherto unknown Ag6(SO4)(SiO4) has been prepared at 400-500°C under an oxygen pressure more than 1000 atm. By single crystal X-ray work the structure of tetragonal Ag6(SO4)(SiO4) has been elucidated: a = 7.060, c = 17.660 Å; D4h19-141/amd; Z = 4. The crystal structure shows a new type in which the tetrahedrally sulfat- and silicat groups are definite distinguishable. As well the both crystallographic silver positions show a different crystal-chemical character.
    Notes: Neu dargestellt wurde Ag6(SO4)(SiO4) bei 400-500°C unter einem Sauerstoffdruck größer als 1000 atm. Nach röntgenographischen Untersuchungen der rubinroten Einkristalle kristallisiert die Verbindung tetragonal: a = 7,060, c = 17,660 Å; D4h19-141/amd; Z = 4. Die Kristallstruktur von Ag6(SO4)(SiO4) stellt einen neuen Strukturtyp dar, worin die tetraedrischen Sulfat- und Silicatgruppen deutlich unterscheidbar sind. Ebenso weisen die beiden kristallographischen Silberpositionen verschiedenartige kristallchemische Charaktere auf.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19744080214
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  • 4
    Electronic Resource
    Electronic Resource
    Zur Kristallstruktur von Tl3PbCl5 (1977)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 432 (1977), S. 141-146 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structure of Tl3PbCl5Single crystals of the compound Tl3PbCl5 were prepared. Tetragonal symmetry with the lattice parameters a = 844.8 pm, c = 1 491.2 pm was shown by X-ray investigations. Tl3PbCl5 belongs to the space group P41 (No. 76). The crystal structure was solved by MULTAN and refined till R = 0.050. The metal particles are surrounded by seven chloride ions. This polyhedras are connected in a 3-dimensional way. Tl3PbCl5 shows a new structure type, without any constitutional relations to Cs3CoCl5 or (NH4)3ZnCl5.
    Notes: Die Verbindung Tl3PbCl5 wurde in Einkristallen dargestellt und röntgenographisch untersucht. Die Kristalle zeigen tetragonale Symmetrie mit a = 844,8 pm, c = 1 491,2 pm und sind der Raumgruppe P41 (No. 76) zuzuordnen. Die Kristallstruktur wurde mit MULTAN bestimmt und bis zu einem R-Wert von 0,050 verfeinert. Die Thallium- und Bleiteilchen sind von sieben Chloridionen umgeben. Die Koordinationspolyeder sind untereinander dreidimensional verknüpft. Tl3PbCl5 kristallisiert in einem neuen Bautyp, der keinerlei strukturelle Beziehung zu Cs3CoCl5 oder (NH4)3ZnCl5 zeigt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19774320118
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  • 5
    Electronic Resource
    Electronic Resource
    Über Erdalkalioxoargentate. I. Strontiumargentat SrAg6O4Professor Rudolf Hoppe zum 50. Geburtstage am 29. Oktober 1972 gewidmet (1972)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 393 (1972), S. 266-274 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On Alkaline Earth Oxoargentates. I. Strontiumargentate SrAg6O4Single crystals of SrAg6O4 were prepared at 400-500°C and 4000 atm. O2-pressure. The X-ray investigation of the single crystals shows the orthorhombic space group D2h6-Pnna (a = 6.518, b = 12.416, c = 8.909 Å). Sr2+ is octahedral and most of the Ag+ surrounded by weakly angled dumbbells of oxygen. In addition of these configurations metallic regions were found.
    Notes: Einkristalle von SrAg6O4 wurden 400-500°C und 4000 atm O2-Druck dargestellt. Eine Röntgenuntersuchung dieser Einkristalle ergibt die Raumgruppe D2h6-Pnna (a = 6,518, b = 12,416, c = 8,909 Å). Sr2+ ist oktaedrisch und das meiste Ag+ durch schwach gewinkelte Hanteln von Sauerstoff umgeben. Daneben wurden metallische Bereiche gefunden.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19723930310
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  • 6
    Electronic Resource
    Electronic Resource
    Die KristallStruktur von trans-Cs2[OsBrCIF4] (1976)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 422 (1976), S. 261-265 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structure of Trans-Cs2 [OsBrClF4]The complex Cs2[OsBrClF4] cristallizes tetragonal in space group C4v9-I4mm resp. D4h17-I4/mmm with a = 7.176, c = 8.606 Å, Z = 2. The structure was resolved by x-ray structure analysis. The final R value was 0.039. Osmium is surrounded octahedrally by the halogens. The chloride and bromide particles are trans together. The arrangement of the octahedra is statistically with regard to the z direction.
    Notes: Die Komplexverbindung Cs2[OsBrClF4] kristallisiert tetragonal in der Raumgruppe C4v9-14mm bzw. D4h17-14/mmm mit a = 7,175, c = 8,606 Å, Z = 2. Die Struktur wurde durch eine Röntgenstrukturanalyse aufgeklärt und bis zu einem R-Wert von 0,039 verfeinert. Die Halogenteilchen umgeben das Osmium oktaedrisch, wobei Chlor und Brom transständig sind. Innerhalb des Kristallverbands erfolgt die Anordnung dieser transständigen Halogene statistisch.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19764220310
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  • 7
    Electronic Resource
    Electronic Resource
    Tief-Tl3PbBr5, Darstellung und Kristallstruktur (1981)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 482 (1981), S. 154-162 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Low-Tl3PbBr5, Preparation and Crystal StructureSingle crystals of the low temperature modification of Tl3PbBr5 were prepared below the upper stability border with 239°C. X-ray investigations yield the following crystallografic data: orthorhombic system, space group P212121, crystal axis a = 15.399, b = 9.063, c = 8.532 Å. The crystal structure is described in relation to the high temperature modification. Conductivity measurements aimed to demonstrate the diffusion of metal ions during phase transition.
    Notes: Die Tieftemperaturmodifikation von Tl3PbBr5 (Tu = 239°C) wurde in Einkristallen dargestellt und die Kristallstruktur ermittelt. Kristallographische Daten: Orthorhombisches Kristallsystem, Raumgruppe P212121, a = 15,399, b = 9,063, c = 8,532 Å. Die Kristallstruktur wird beschrieben und mit dem Aufbau der Hochtemperaturmodifikation verglichen. Mit Leitfähigkeitsmessungen konnte die bei der kristallographischen Umwandlung erforderliche Diffusion nachgewiesen werden. Die Bromidumgebung der Metallionen wird im Zusammenhang mit den Platzwechselvorgängen diskutiert.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19814821118
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  • 8
    Electronic Resource
    Electronic Resource
    Darstellung und Kristallstruktur von TlPb8O4Br9Professor Rudolf Hoppe zum 60. Geburtstage gewidmet (1982)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 491 (1982), S. 191-198 
    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 of TlPb8O4Br9Analytical characterisation and crystal structure determination of TlPb8O4Br9 is reported. This compound is related with the “R-Phase” of the PbO/PbBr2-system. The difference between the reported compound and the “R-Phase” is shown, although their is accordance of the lattice constants. X-ray investigations yield the following crystallographic data: tetragonal system, space group P4/n (No 85), crystal axis a = 12.337, c = 8.214 Å. The crystal structure is described and the observation of the isolated structure group [Pb8O4]8+ is pointed out.
    Notes: Die Verbindung TlPb8O4Br9 wird analytisch charakterisiert und mit der sogenannten R-Phase des Systems PbO/PbBr2 verglichen. Die ermittelte Kristallstruktur wird vorgestellt und diskutiert. Bemerkenswert ist das Auftreten von diskreten Baugruppen [Pb8O4]8+, die untereinander durch eine Bromidionenumgebung abgeschirmt sind. Kristallographische Daten: Tetragonales Kristallsystem, Raumgruppe P4/n (No. 85), a = 12,337, c = 8,214 Å. Es wird ausgeführt, daß die für die R-Phase genannte Zusammensetzung trotz annähernd gleicher Metrik nicht für die vorliegende Verbindung zutreffen kann.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19824910124
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  • 9
    Electronic Resource
    Electronic Resource
    Ag2PdCl4, Kristallstruktur und die kristallchemische Beziehung zum NaCl-Typ (1988)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 562 (1988), S. 123-130 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ag2PdCl4, Crystal Structure and the Crystal Chemical Relation to the NaCl TypeAg2PdCl4 single crystals show orthorhombic symmetry with the space group Cmca (No. 64) and the lattice parameters a = 10.088(2), b = 8.051(5), c = 8.078(2) å, with 4 formular units per unit cell. The atomic arrangement of Ag2PdCl4 is explored by X-ray crystal structure analysis.Silver shows a distorted octahedral arrangement of chlorine atoms. Palladium forms typical, approximately square-planar PdCl4 groups. Ag2PdCl4 is a new variant of a partially occupied sodium chloride structure type.
    Notes: Die Kristallstruktur von Ag2PdCl4 wurde mit röntgenographischen Methoden an Einkristallen ermittelt. Ag2PdCl4 kristallisiert mit orthorhombischer Symmetrie: Cmca (No. 64), a = 10,088(2), b = 8,051(5), c = 8,078(2) å mit 4 Formeleinheiten pro Elementarzelle.Silber besitzt eine verzerrt oktaedrische Chlor-Nachbarschaft, während das Palladium annähernd quadratisch planare PdCl4-Gruppen bildet. Ag2PdCl4 stellt eine neue Variante einer teilbesetzten Natriumchloridstruktur dar.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19885620115
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  • 10
    Electronic Resource
    Electronic Resource
    Pb13O10Br6, ein neuer Vertreter der Blei(II)-oxidhalogenide (1989)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 571 (1989), S. 139-147 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structure of Pb13O10Br6, a New Lead OxidehalideStrongly yellow Pb13O10Br6 was prepared for the first time and the crystal structure was explored by single crystal measurement. The compound crystallizes with monoclinic symmetry in space group C2/c - No. 15 with a = 16.439(6) Å, b = 7.163(1) Å, c = 23.940(9) Å, β = 98.39(3)° and four formulas per unit cell. The structure was refined by full matrix least-squares techniques to Rw = 0.0727 (2 030 reflections with I ≥ 3σ(I), MoKα, 4-circle-diffractometer AED2). Regions of lead(II) oxide exists within the structure, which are separated from the content of bromide. Pb13O10Br6 is a connecting link between oxidehalides and the tetragonal modification of PbO.
    Notes: Pb13O10Br6 wurde erstmalig dargestellt und die Kristallstruktur an Einkristallen aufgeklärt. Pb13O10Br6 ist von kräftig gelber Farbe und kristallisiert monoklin (Raumgruppe C2/c - No. 15) mit a = 16,439(6) Å, b = 7,163(1) Å, c = 23,940(9) Å, β = 98,39(3)° und Z = 4. Die Verfeinerung der Parameter mittels der kleinsten Fehlerquadrate ergab Rw = 0,0727 (2 030 Reflexe mit I ≥ 3σ(I), MoKα Vierkreisdiffraktometer AED2). Die Verbindung zeigt in ihrem Aufbau eine deutliche Trennung in oxidische und halogenidische Bereiche. Pb13O10Br6 stellt ein Bindeglied in der Verbindungsreihe der Oxidhalogenide und tetragonalem PbO dar.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19895710115
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