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  • 1
    Electronic Resource
    Electronic Resource
    C55-Dolichol: occurrence in pig liver and preparation by hydrogenation of plant undecaprenol (1976)
    s.l. : American Chemical Society
    Biochemistry 15 (1976), S. 2125-2130 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00655a015
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  • 2
    Electronic Resource
    Electronic Resource
    RELATIONSHIPS BETWEEN INDICATOR ORGANISMS AND SPECIFIC PATHOGENS IN POTENTIALLY HAZARDOUS FOODS (1976)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 41 (1976), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Quality audit data collected as part of a mass feeding quality assurance program were analyzed to determine the relationships between the indicator tests (total aerobic plate count, coliform count and Escherichiu coli) and the common food-borne pathogens (Staphylococcus aureus, Clostridium perfringens and Salmonella). 132 raw foods and 593 ready-to-eat foods were evaluated. The indicators were grouped into ranges and compared to the pathogens and to each other in terms of detectability. There were correlations between the pathogens and the indicator ranges and between the indicators and the indicator ranges. The value of the indicators in the èvaluation of food safety was tested by setting standards and determining the numbers of correct and incorrect decisions which would be made relative to the pathogens detected in the foods. None of the indicators was suitable as a screening agent for food safety.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1976.tb14376.x
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  • 3
    Electronic Resource
    Electronic Resource
    Differential pulse anodic stripping voltammetry as a rapid screening technique for heavy metal intoxications (1976)
    Springer
    Archives of toxicology 37 (1976), S. 47-55 
    Details
    ISSN: 1432-0738
    Keywords: Systematic screening ; Metals ; Poisoning ; Analysis ; Differential pulse anodic stripping voltammetry ; Systematische Untersuchung ; Metalle ; Vergiftung ; Analyse ; Inverse Pulsvoltammetrie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird ein relativ einfaches und schnelles analytisches Verfahren beschrieben, das imstande ist, eine systematische Untersuchung von zehn Schwermetallen auszuführen: Quecksilber, Wismut, Antimon, Kupfer, Blei, Zinn, Thallium, Indium, Cadmium und Zink. Gewählt wurde die inverse Pulsvoltammetrie mit Differenzstrommessung aus nachfolgendem Grunde: Einfachheit, Geschwindigkeit, niedrige Kosten, niedrige Detektionsgrenze, Untersuchungsvermögen für eine Reihe von Metallen und kombinierte qualitative und quantitative Ergebnisse. Die Identifikation ist begründet auf der Messung der Peakpotentiale in zwei verschiedenen Lösungen mit zwei verschiedenen Elektroden und mit oder ohne Komplexbildner.
    Notes: Abstract This paper describes a relatively simple and rapid analytical procedure capable to carry out systematic screening for 10 heavy metals, namely mercury, bismuth, antimony, copper, lead, tin, thallium, indium, cadmium and zinc. Differential pulse anodic stripping voltammetry was chosen because of its simplicity, speed, low cost, low detection limits, screening potential for a wide selection of metals and the combined qualitative and quantitative output. The method of identification is based on measuring peak potentials in 2 different types of electrolyte solution, using 2 different electrodes. Complexing agents are used to mask certain elements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00353354
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  • 4
    Electronic Resource
    Electronic Resource
    Cytoplasmic actomyosin fibrils in tissue culture cells (1976)
    Springer
    Cell & tissue research 166 (1976), S. 427-443 
    Details
    ISSN: 1432-0878
    Keywords: Cytoplasmic actomyosin ; Microfilaments ; Contraction ; Cell motility ; Tissue culture cells
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Eine besondere Zellinie, die von einem Ratten-Mamma-Adenocarcinom stammt, entwickelt ein deutliches Muster von Actomyosin-Fibrillen (AM-Fibrillen), die im Phasenkontrast-, im Nomarski-Interferenz-kontrast- und im Polarisations-Mikroskop sichtbar sind. Die cytoplasmatischen AM-Fibrillen bestehen aus Bündeln von stark parallelisierten F-Actin-Filamenten. Die chemische Identität der Filamente wurde durch Inkubation mit schwerem Meromyosin (heavy meromyosin, HMM) vom quergestreiften Kaninchenmuskel nachgewiesen. Die cytoplasmatischen AM-Fibrillen kontrahieren aktiv unter isotonischen Bedingungen. Diese Fähigkeit wird belegt durch Kontraktionsexperimente bei polarisationsmikroskopischer Darstellung, durch kinematographische Analyse und durch direkte Sichtbarmachung der Kontraktion von AM-Fibrillen, die mit einer Laser-Mikro-Präparationsmethode isoliert wurden. Cytoplasmatische AM-Fibrillen müssen deshalb als Strukturen angesehen werden, die wesentlich für die Triebkrafterzeugung im Rahmen der Motilität nichtmuskulärer Zellen sind.
    Notes: Summary A special cell line derived from a rat mammary adenocarcinoma (RMCD cells) displays a distinct pattern of actomyosin fibrils (AM fibrils) visible with phase contrast, Nomarski interference and polarized light optics. It was shown that the cytoplasmic AM fibrils are arranged as bundles of highly parallel F-actin filaments. The chemical nature of the filaments was identified by incubation with heavy meromyosin from rabbit skeletal muscle. These cytoplasmic actomyosin fibrils actively contract under isotonic conditions. This was shown by contraction experiments under polarized light optics, by cinematographic analysis and by direct proof of the contractility of AM fibrils isolated by laser micro-dissection. Thus, cytoplasmic AM fibrils can be assumed to represent structures essential for motive force generation in contraction processes in non-muscle cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00225909
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  • 5
    Electronic Resource
    Electronic Resource
    On the general form of the dynamical transformation of density matrices (1976)
    Springer
    Theoretical and mathematical physics 27 (1976), S. 406-413 
    Details
    ISSN: 1573-9333
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01051230
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  • 6
    Electronic Resource
    Electronic Resource
    Zellverbindungskomplexe im Limbus spirale (1976)
    Springer
    European archives of oto-rhino-laryngology and head & neck 213 (1976), S. 446-447 
    Details
    ISSN: 1434-4726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The spiral limbus of the chinchilla inner ear was investigated using the freeze-fracture method. In the replica we observed that a) the intercellular space between the epithelial cells of the spiral limbus (interdental cells and inner sulcus cells) is completely sealed from the endolymphatic space by extense tight junctions, b) the epithelial cells are joined to each other by gap junctions, as well as the cells of the perilymphatic space. Tight junctions seal the intercellular space of an epithelium towards an adjoining lumen, gap junctions represent an area of electrotonical and metabolical communication of cells without participation of the intercellular space. From these findings in accordance with previous investigations of the vascular stria, the Reissner-membrane, and the organ of Corti we conclude, that in the inner ear the tight junctions occur independently on location and function of the single epithelium and that they play a role in the maintenance of the endocochlear potential and the high potassium concentration gradient between endolymph and perilymph. The presence of numerous and extense gap junctions between the cells of the perilymphatic space is similar in the vascularised areas of the cochlear duct. A continuous supply of cells of the individual tissue seems to be maintained as well as its participation at the homoeostasis of the surrounding liquid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00455505
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  • 7
    Electronic Resource
    Electronic Resource
    130. Indikation, Technik und Ergebnisse der femoro-cruralen Revaskularisation beim Unterschenkelarterienverschluß (1976)
    Springer
    Langenbeck's archives of surgery 342 (1976), S. 593-593 
    Details
    ISSN: 1435-2451
    Keywords: Femoro-crural Revascularisation ; Grafts autogenous venous ; Early and late results ; Femoro-crurale Rekonstruktion ; Autogene Venentransplantation ; Früh- und Spätergebnisse
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung 132 femoro-crurale Revaskularisationen bei 126 Patienten. Absolute Op.-Indikation im Ischämiestadium III und IV, in 85,6 %. Voraussetzung die Kontrastierung der Unterschenkelarterien; bei 31 Patienten erst durch Femoralisdirektpunktion oder Angiographie nach Probefreilegung. Die Rekonstruktion prinzipiell orthotop mit autologem Venentransplantat. In der Oberschenkeletage vereinzelt Ringdesobliteration oder Prothese. Primär freie Durchgängigkeit in 93,9%. Bei Nachuntersuchung von 120 Revaskularisationen 78,3% offen, 15 Bypass-Verschlüsse und 11 Amputationen. Gutes Spätergebnis in 64,4 %, 2–9 Jahre postoperativ.
    Notes: Summary Femorocrural revascularization was performed in 132 operations in 126 patients. In 85.6% of these cases the operation was indicated because stage-III or stage-IV ischemia was present. The necessity for surgery is determined by radiography of the arteries of the lower leg; in 31 of these patients it was necessary to perform a direct femoral puncture or an exploratory vascular operation followed by angiography. The authors' policy was to perform orthotopic reconstruction with autologous vein grafts. In isolated cases a ring clearance or a prothesis was used in the thigh region. Immediate patency was obtained in 93.9%. Of these operations, 120 were seen at follow-up; 78.3% of the bypasses were still patent, there was occlusion in 15 cases, and amputation was necessary in 11. Long-term results (2–9 years after the operation) were good in 64.4%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01267477
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  • 8
    Electronic Resource
    Electronic Resource
    Gaschromatographische und 29Si-NMR-spektroskopische Untersuchungen an Kieselsäuretrimethylsilylestern (1976)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 424 (1976), S. 115-127 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Gaschromatographic and 29Si-NMR Spectroscopic Investigations on Silicic Acid TrimethylsilylestersSilicic acid trimethylsilylesters of different constitutions are characterized by gaschromatographic retention index and retention temperatures. It is shown that the retention indices of the esters depend mainly on the number of trimethylsilylgroups in the molecule and exhibit only small effects of the constitution of the silicic acid framework. The 29Si-n.m.r. spectra of 9 silicic acid TMS-esters of different constitutions are recorded and the assignment of the signals to the individual building units of the esters are discussed. On the basis of these results the constitutions of hexamer silicic acid-TMS-esters is investigated. Two isomers of the bicyclo-hexasilicic acid ester [(CH3)3Si]10 [Si6O17] could be identified.
    Notes: Kieselsäuretrimethylsilylester unterschiedlicher Konstitution werden mit Hilfe der Gaschromatographie hinsichtlich ihres Retentionsindex und der Retentionstemperatur charakterisiert. Es wird gezeigt, daß die Retentionsdaten der Ester im wesentlichen von der Anzahl der Trimethylsilylgruppen im Molekül abhängen und nur wenig von der Konstitution des Kieselsäuregerüstes beeinflußt werden. Die 29Si-NMR-Spektren von neun Kieselsäure-TMS-Estern unterschiedlicher Konstitution wurden aufgenommen und die Zuordnung der Signale zu den einzelnen Baugruppen der Ester diskutiert. Auf der Grundlage dieser Ergebnisse wurden Konstitutionsuntersuchungen an hexameren Kieselsäure-TMS-Estern durchgeführt, die zur Identifizierung von zwei Isomeren des Bicyclohexakieselsäureesters [(CH3)3Si]10[Si6O17] führten.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19764240205
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