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Nitrifying biofilm development with time: Activity versus phylogenetic composition
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ABSTRACT: The development of nitrifying biofilms collected from a full-scale nitrifying trickling filter was evaluated through the application of fluorescent in situ hybridization (FISH) and by quantification of nitrification rates in bench-scale reactors. Two sampling campaigns were conducted to evaluate the structure and function of biofilms between 14 and 70 days old. The structure, or number of ammonia-oxidizing bacteria, was quantified with Nso190. The function was quantified with bench-...
Related newspaper, magazine, and journal articles from HighBeam Research
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Nitrifying biofilm development with time: Activity versus phylogenetic composition
Water Environment Research
; ABSTRACT: The development of nitrifying biofilms collected from a full-scale nitrifying trickling filter was evaluated through the application of fluorescent in situ hybridization (FISH) and by quantification of nitrification rates in bench-scale reactors. Two sampling campaigns were conducted to
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Quantification of nitrifying bacterial populations in a full-scale nitrifying trickling filter using fluorescent in situ hybridization
Water Environment Research
; ABSTRACT: Fluorescent in situ hybridization (FISH) was used to quantify the ammonia-oxidizing populations within intact biofilm samples collected from a full-scale nitrifying trickling filter (NTF). Ammonia, nitrite, and nitrate concentrations were measured for aqueous samples taken in conjunction
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Automated in situ hybridization.(New Products)
Bioscience Technology
; The Hybridizer ISH instrument (DakoCytomation) complements the Autostainer Plus and other staining systems, and allows for semi-automation of ISH by eliminating steps in the time-intensive manual procedure. In situ hybridization (ISH) techniques localize specific nucleic acid sequences within
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Fluorescence in situ hybridization of single copy transgenes in rice chromosomes
In Vitro Cellular & Developmental Biology
; SUMMARY Fluorescence in situ hybridization (FISH) is a powerful tool for visualizing the chromosomal location of targeted sequences and has been applied in many areas, including karyotyping, breeding and characterization of genes introduced into the plant genome. A simple, routine and sensitive
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Biological fixed-film systems
Water Environment Research
; ROTATING BIOLOGICAL CONTACTORS Qaisi and Qasem (1996) investigated the presence of trihalomethanes (THMs) in wastewater and from various types of treatment plants including activated sludge, trickling filters, and rotating biological contactors and evaluated the efficiency of selected techniques
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Detection and occurrence of indicator organisms and pathogens
Water Environment Research
; INTRODUCTION Research in water and wastewater microbiology has been focused on two primary areas during the past year. First, because of the increasing acceptance and use of rapid detection techniques (chromogenic substrates and molecular probes) for the detection of traditional indicator and other
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In Situ Hybridization Kit.(New Products)
Bioscience Technology
; R&D Systems offers a Whole Mount Zebrafish In Situ Hybridization Kit. The zebrafish is an excellent experimental model, as most of its genes are human functional orthologs, while embryos are inexpensive, transparent, and develop externally within 48 hours. These important technical advantages
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Get quick fungal Dx with in situ hybridization.(Clinical Rounds)(diagnosis)(Brief Article)
Skin & Allergy News
; BOSTON -- In situ hybridization may provide a much faster method of diagnosing dimorphic fungal infections than tissue culturing, Jared J. Abbott, M.D., reported at the annual meeting of the American Society of Dermatopathology. Although tissue culturing is considered the preferred diagnostic
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Activated sludge and other suspended culture processes
Water Environment Research
; PROCESS MODELING AND KINETICS Models. The complexities of activated sludge process modeling were integrated into a modification of the International Association on Water Quality (IAWQ) Activated Sludge Model No. I (ASMI) to include biological phosphorus removal (Barker and Dold, 1997a).
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In Situ Hybridization Protocols
Archives of Pathology & Laboratory Medicine
; 2nd ed, edited by Ian A. Darby (Methods in Molecular Biology, vol 123), 343 pp, with illus, Totawa, NJ, Humana Press, 2000. The second edition of In Situ Hybridization Protocols has a new editor and is substantially different in its stated aims and intended audience. While the first edition tried
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