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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Luminescence 53 (1992), S. 339-344 
    ISSN: 0022-2313
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Phytochemistry 28 (1989), S. 447-449 
    ISSN: 0031-9422
    Keywords: 1,4-benzoxazin-3-ones. ; DIMBOA ; Gramineae ; Metopolophium dirhodum ; Secale cereale ; T. durum ; Triticum aestivum ; aphid ; hydroxamic acids ; induced plant defences
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Phytochemistry 28 (1989), S. 2307-2310 
    ISSN: 0031-9422
    Keywords: DIMBOA ; Gramineae ; Metopolophium dirhodum ; Sitobion avenae ; Triticum ; aphid resistance ; feeding deterrence. ; hydroxamic acids
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 199 (1994), S. 52-55 
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1433-0385
    Keywords: Key words: Autogenous arterial revascularization ; Aortic graft infection ; Superficial femoral vein. ; Schlüsselwörter: Autogene Revascularisation ; aortaler Protheseninfekt ; V. femoralis superficialis.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung. Die gängige Therapie des tiefen Protheseninfekts in der Beckenetage ist mit einer hohen Incidenz operativer und später Komplikationen verbunden. Als vielversprechende therapeutische Alternative sind orthotopen Revascularisationen mittels autogenem Gewebe durch die technische Komplexität dieser Verfahren und durch den Mangel an geeigneten Donorgefäßen Grenzen gesetzt. Nachdem mehrere Autoren belegen konnten, daß klinisch relevante venöse Rückflußstörungen der Spenderextremität nach Entnahme der V. femoralis superficialis (VFS) ausbleiben, sind wir dazu übergegangen, diese tiefe Leitvene bei Gefäßprotheseninfekten in aorto-iliacaler Position für anatomische arterielle Rekonstruktionen zu verwenden. In den vergangenen drei Jahren wurden auf diese Weise bei sieben Patienten autogene VFS-Tansplantationen durchgeführt. Intraoperative Todesfälle traten nicht auf. Zwei notfallmäßig operierte Patienten mit schwerer Pseudomonas-Sepsis und ausgedehnter retroperitonealer Abscedierung verstarben jeweils am 4. postoperativen Tag infolge akuter Massivblutung im Operationsgebiet. Bei den fünf Überlebenden konnte die Infektion behoben werden, nur eine Amputation war notwendig. Gering- bis mittelgradige passagere Schwellungen der unteren Extremität ohne Stase wurden nach VFS-Resektion regelmäßig beobachtet. Im Nachbeobachtungszeitraum erlag ein Patient fünf Monate postoperativ einem Herzversagen. Die verbleibenden vier Patienten haben bisher mit durchgängigen VFS-Transplantaten 6, 22, 30 und 36 Monate post operationem überlebt.
    Notes: Summary. The current standard therapy of aortic graft infection is connected with a high incidence of operative and late complications. The usefulness of autogenous tissue revascularization techniques as promising therapeutic alternatives is limited by the complexity of these procedures and by the lack of suitable donor vessels. Since several authors have shown that serious venous stasis of the donor leg does not occur after superficial femoral vein (SFV) resection, we have started to use this deep leg vein for arterial in situ reconstructions in the treatment of aortic graft infection. During the past 3 years seven patients have received autogenous SFV grafts in this way. There were no intraoperative deaths. Two critically ill patients with severe Pseudomonas sepsis and extensive retroperitoneal abscess each died on the 4th postoperative day, due to acute massive bleeding in the operating area. In all of the five survivors infection could be eradicated; only one limb had to be amputated. Mild to moderate transient swelling of the lower extremity without stasis was regularly seen after SFV resection. During follow-up one patient died of cardiac arrest 5 months postoperatively. The remaining four patients are still alive with patent SFV grafts at 6, 22, 30 and 36 months after the operation.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Archives of toxicology 22 (1967), S. 293-332 
    ISSN: 1432-0738
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Es wird zunächst über die Giftigkeit der Frühjahrslorchel, Gyromitra (Helvella) esculenta, berichtet und eine Zusammenfassung aller erfaß-baren Vergiftungsfälle von 1782–1965 gegeben. Dann wird über die Isolierung des flüchtigen Giftstoffes und seine vorläufige Charakterisierung als N-Alkenylimid einer Carbonsäure berichtet.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' journal of analytical chemistry 360 (1998), S. 580-588 
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Sediments from the Elbe River and from its major tributaries are shown to be contaminated with arylesters of alkylsulfonic acids. Here we report on the structure elucidation and quantification of aryl esters of alkylsulfonic acids. Chromatographic separation and mass spectrometric properties are discussed. Congener-specific analyses revealed a highly similar pattern throughout the area investigated. Alkylsulfonic acid phenylesters were present at almost all sampling locations. Amounts ranged from 33 000 μg/kg near the industrial region of Bitterfeld to 15 μg/kg in wadden sea sediments. Concentrations of alkylsulfonic acid cresylesters were between 10–40% of the phenylesters, and fell below the detection limit only in the Elbe estuary. The presence of aryl esters of alkylsulfonic acids in all sediment samples analyzed indicates a widespread distribution of these compounds in the environment. Previous literature described these compounds erroneously as phenoxyalkanes.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' journal of analytical chemistry 365 (1999), S. 529-536 
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Congeneric groups of chlorinated diphenylmethanes (ClDPM) and triphenylmethanes (ClTPM) identified by coupled GC/MS investigations of Elbe and Mulde river sediments were not as yet noticed as environmental contaminants of aquatic sediments. ClDPM and ClTPM are structurally related to other polychlorinated aromatic compounds and form complex mixtures of congeners. Individual ClDPM/ClTPM as well as mixtures of congerers were synthesized, and served as reference compounds for isomer identification and quantitative analysis. In addition to mass spectra, GC/FTIR-investigations and retention indices proved to be valuable for structural assignments. Sediments from the Mulde river contained up to 220 μg/kg ClTPM and 170 μg/kg ClDPM. The spatial distribution of ClDPM/TPM concentrations indicated a strong localized source of emisson at the lower Mulde river, from where the compounds enter sediments and suspended matter of the Elbe river. The occurrence of ClTPM in the Hamburg harbour at comparable levels in samples of recent and older sediments indicates emissions over a prolonged period.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0992-7689
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The Global-Scale Wave Model (GSWM) is a steady-state two-dimensional linearized model capable of simulating the solar tides and planetary waves. In an effort to understand the capabilities and limitations of the GSWM throughout the upper mesosphere and thermosphere a comparative analysis with observational data is presented. A majority of the observational data used in this study was collected during the World Day campaign which ran from 20 January to 30 January 1993. During this campaign data from 18 ground-based observational sites across the globe and two instruments located on the UARS spacecraft were analyzed. Comparisons of these data with the simulations from the GSWM indicate that the GSWM results are in reasonable agreement with the observations. However, there are a number of cases where the agreement is not particularly good. One such instance is for the semidiurnal tide in the northern hemisphere, where the GSWM estimates may exceed observations by 50%. Through a number of numerical simulations, it appears that this discrepancy may be due to the eddy diffusivity profiles used by the GSWM. Other differences relating to the diurnal tide and the quasi-two-day wave are presented and discussed. Additionally, a discussion on the biases and aliasing difficulties which may arise in the observational data is alos presented.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Zeitschrift für Lebensmittel-Untersuchung und -Forschung 207 (1998), S. 341-351 
    ISSN: 1431-4630
    Keywords: Key words Soy lecithin ; Residual allergens ; Consumer protection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract  Soybeans are known to be allergenic for adults as well as for infants. Processed products derived from soybeans are used in a wide spectrum of foods, drugs and other industrial products. In particular, soybean lecithins are used as stabilizers and emulsifiers and may not be suspected as possible source of allergens. To test this hypothesis, six commercial soy lecithins were investigated for residual allergenicity and compared with extracts from raw and heat-treated soybeans. They were characterized, the protein content was determined by enzyme-linked immunosorbent assay (ELISA) and allergens were analyzed with specific IgE from patients' sera using the enzyme allergosorbent test (EAST), EAST inhibition and protein blotting followed by immunodetection. For further characterization a polyclonal antiserum directed against soybean extract and a monoclonal antibody (mAb 025) directed against the acidic subunit of the soybean storage protein glycinin were used. The EAST studies revealed that three of six sera from patients with allergy to soybeans contained IgE to four soy lecithins (Topcithin 50, Topcithin 300, Emulfluid FD 12, Epikuron 100 P), the same lecithins which were found to contain residual proteins. Two lecithins with a protein content of less than 20 ppb did not bind IgE. EAST inhibition showed that the allergens from soy lecithin were immunologically more closely related to allergens from heat-treated soybeans than to those from raw soybeans. Protein blotting and immunodetection of the protein extract from the lecithins resulted in various allergen bands between 14 kDa and 94 kDa. A heat-stable allergen of 39 kDa was recognized by the monoclonal antibody and thus identified as a subunit of glycinin. The results obtained were confirmed by a mediator release assay based on a rat basophil leukemia cell line. Lecithins that contained residual proteins caused a specific mediator release, suggesting that these products may induce allergic symptoms. Our results show that soybean lecithins are capable of introducing hidden allergens to processed foods and that the IgE binding potential corresponds to the total protein determined by ELISA. Furthermore, it appears to be possible that by monitoring the protein content soy lecithins can be applied which may be safe for the allergic consumer.
    Type of Medium: Electronic Resource
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