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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Analytica Chimica Acta 244 (1991), S. 296 
    ISSN: 0003-2670
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Archives of orthopaedic and trauma surgery 90 (1977), S. 1-14 
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird über die Infektionshäufigkeit bei 836 totalen Hüftalloarthroplastiken berichtet, die unter verschiedenen Umgebungsbedingungen einschließlich ultra-steriler Luft durchgeführt wurden. Eine weitere Studie befaßte sich mit dem intraoperativen Bakteriengehalt der Luft in der Wundumgebung und im Wundbereich selbst. Diese Untersuchungen wurden im Verlauf von 32 Hüftersatzoperationen durchgeführt, wobei die Bedingungen sowohl unter normaler als auch ultra-sterilisierter Luft untersucht wurden. p]Die bakteriologische Verunreinigung der Luft konnte durch die Verwendung des ultrasterilen Luftstromes deutlich reduziert werden. Die Wunden selbst zeigten jedoch keinen höheren Reinheitsgrad als bei der Verwendung einer konventionellen Klimaanlage; allerdings unter der Voraussetzung, daß unsteriles Operationspersonal mindestens 1 m vom sterilen Gebiet Abstand hielt. Zu Beginn der Studie war die Infektionsrate hoch (zu diesem Zeitpunkt stand nur ein unzureichender Operationsraum zur Verfügung, die operative Technik war neuartig, und prophylaktische Antibiotikagaben wurden nicht durchgeführt). Danach fiel die Infektionsrate und blieb unverändert trotz der Einführung ultra-steriler Luft. Aus diesen Ergebnissen schließen wir, daß die Wirksamkeit der Verwendung sterilisierter Luft in der Umgebung der Operationswunde nicht erwiesen ist. Besonders im Hinblick auf die niedrige Infektionsrate, die mit konventionellen Umgebungs-Bedingungen erzielt werden können. Unsere Ergebnisse zeigen jedoch, daß unsteriles Operationspersonal vom sterilen Bereich mindestens 1 m im Umkreis ferngehalten werden sollte, gleichgültig welche Ventilationsart Verwendung findet.
    Notes: Summary A study is reported of sepsis rates in 836 total hip replacements carried out in various physical environments including ultra-clean air. In a further study the bacteriology of the air around the wound and of the wound itself was investigated during the course of 32 joint replacement operations with and without ultra-clean air. p]Bacteriological contamination of the air was markedly reduced by the use of ultra-clean air but the wounds themselves were no cleaner than with conventional air conditioning provided that unsterile personel were kept at least Imetri away from the sterile area. The sepsis rate was high at the outset of the study (when a physically apalling theatre was in use, the operative technique was novel and prophylactic antibiotics were not employed). Thereafter it fell and remained unchanged in spite of the introduction of ultra-clean air. We conclude that the efficacy of techniques amiced at sterilizing the air around the wound may now be unprovable in view of the low sepsis rates which can be obtained in a conventional environment. Our results do however show that unsterile personel should not be allowed to approach within Imetri of the sterile area, whatever ventilation is employed.
    Type of Medium: Electronic Resource
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  • 3
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    In:  [Talk] In: 8th International Symposium on the Cretaceous System, 07.09, Plymouth, Great Britain .
    Publication Date: 2012-02-23
    Type: Conference or Workshop Item , NonPeerReviewed
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  • 4
    Publication Date: 2023-12-22
    Description: Following the unanimous vote of the Executive Committee of International Union of Geological Sciences in October 2022, the Global boundary Stratotype Section and Point for the base of the Campanian Stage is confirmed as the magnetic polarity reversal from Chron 34n (top of the Long Cretaceous Normal Polarity–Chron) to Chron C33r at the 221.53 m level in the Bottaccione Gorge section at Gubbio, Umbria–Marche Basin, Italy. This event has been widely identified in oceanic settings and in widespread onshore outcrops. Sedimentation across the Santonian– Campanian boundary interval in the proposed GSSP appears to be continuous, supported by evidence from the carbon isotope record and complete micro– and nannofossil biostratigraphy. The succession comprises deep–water cherty limestones (mudstones and foraminiferal wackestones) which provide a detailed record of calcareous nannofossils and planktonic foraminifera and yields an excellent palaeomagnetic record. The high–resolution carbon isotope record, derived from bulk sediment, provides an important additional means of correlation to other regions.
    Language: English
    Type: info:eu-repo/semantics/article
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  • 5
    Publication Date: 2024-01-26
    Description: Following votes in the Coniacian Working Group, the Cretaceous Subcommission and the International Commission on Stratigraphy, on May 1st, 2021, the International Union of Geological Sciences voted unanimously to ratify the Global Stratotype Section and Point (GSSP) proposal for the base of the Coniacian Stage of the Upper Cretaceous Series and Cretaceous System. The lower boundary of the Coniacian Stage is placed at the base of Bed 46 of the Salzgitter-Salder section in northern Germany. The boundary is defined by the first appearance of the inoceramid bivalve species Cremnoceramus deformis erectus (Meek) and complemented by the Navigation carbon isotope event. Additional data include the bivalve genus Didymotis, foraminifera, ammonite, nannofossil and organic-walled dinoflagellate cyst events. Three auxiliary sections (Słupia Nadbrzeżna, central Poland; Střeleč, Czech Republic; El Rosario, NE Mexico) supplement the details of the boundary record in various facies, and in differing geographic and biogeographic contexts.
    Language: English
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 6
    Publication Date: 2024-02-12
    Description: Space-based remote sensing can make an important contribution toward monitoring greenhouse gas emissions and removals from the agriculture, forestry, and other land use (AFOLU) sector, and to understanding and addressing human-caused climate change through the UNFCCC Paris Agreement. Space agencies have begun to coordinate their efforts to identify needs, collect and harmonize available data and efforts, and plan and maintain a long-term roadmap for observations. International cooperation is crucial in developing and realizing the roadmap, and the Committee on Earth Observation Satellites (CEOS) is a key coordinating driver of this effort. Here, we first identify the data and information that will be useful to support the global stocktake (GST) of the Paris Agreement. Then, the paper explains how existing and planned space-based capabilities and products can be used and combined, particularly in the land use sector, and provides a workflow for their harmonization and contribution to greenhouse gas inventories and assessments at the national and global level.
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 7
    Publication Date: 2024-01-30
    Description: The stratigraphy and palynology of the upper Santonian–lower Campanian (Uintacrinus socialis–Gonioteuthis quadrata zones) Newhaven Chalk are described for the Campanian auxiliary GSSP section at Seaford Head, England. A new high-resolution bulk-sediment carbonate carbon stable-isotope (δ13Ccarb) curve provides the basis to refine the carbon-isotope event (CIE) stratigraphy of the section. Results are compared to a complementary palynological study of a second Campanian auxiliary GSSP section (U. socialis–O. pilula zones) at Bocieniec, Poland. Palynological assemblages are dominated by organic-walled dinoflagellate cysts (dinocysts; 208 taxa) at both sites. A stratigraphic framework is established via review of published lithostratigraphic, macrofossil, foraminifera and calcareous nannofossil records from the study sites. Carbon isotope curves with 13 major named CIEs provide a basis for correlation of Seaford Head and Bocieniec to sections at: Trunch, England; Poigny, France; Lägerdorf, Germany; and the Campanian GSSP at Gubbio, Italy. Correlations are constrained by biostratigraphic records, including dinocyst events. The Late Santonian δ13C Event (LSE, previously termed the Santonian–Campanian Boundary Event, SCBE) provides a key correlation level between Boreal and Tethyan sections and enables the placement of base Campanian markers: extinction levels of the crinoid Marsupites and the planktonic foraminifera Dicarinella asymetrica; the first appearance of the calcareous nannofossil Aspidolithus parcus parcus; and the C34n/C33r magnetozone boundary (the primary Campanian marker), in both Boreal and Tethyan sections. A holostratigraphy for the Santonian–Campanian boundary interval that integrates CIEs, macrofossils, benthic and planktonic foraminifera, calcareous nannofossils, dinocysts and magnetostratigraphy is presented. Rhynchodiniopsis juneae sp. nov. is described.
    Language: English
    Type: info:eu-repo/semantics/article
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