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  • 1
    Digitale Medien
    Digitale Medien
    Cutaneous granulomas associated with primary immunodeficiency disorders (2005)
    Oxford, UK : Blackwell Science Ltd
    British journal of dermatology 153 (2005), S. 0 
    Details
    ISSN: 1365-2133
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Cutaneous granulomas are uncommon in primary immunodeficiency disorders. We report cutaneous granulomas in a child with ataxia telangiectasia (AT) and compare the clinical course with similar lesions in an adult with common variable immunodeficiency (CVI). A 4-year-old female with AT developed cutaneous granulomas as erythematous plaques. The largest lesion appeared on her left cheek and continued to progress despite treatment with topical and intralesional steroids. Disease control was obtained initially with oral antibiotics and low-dose oral steroids. On cessation of oral steroids, significant relapse of the facial granuloma occurred. Pulsed and then oral steroids were required to stop the disease process leaving significant scarring. The second case is of cutaneous granulomas in a 66-year-old man, with CVI, who presented with an erythematous reticulate rash on the legs. We consider it useful to report this patient here as disease control was obtained in a similar way with systemic immunosuppression. In this patient a combination of oral steroids and azathioprine was used. These cutaneous granulomas are thought to be a manifestation of immune dysregulation. No infectious cause has been found so far. We recommend the use of broad-spectrum antibiotics in conjunction with systemic steroids for progressive granulomas, as these patients are immunosuppressed and infection with an unidentified organism cannot be excluded.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2133.2005.06619.x
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  • 2
    Digitale Medien
    Digitale Medien
    Evidence for a role of local trauma in the pathogenesis of erosive pustular dermatosis of the scalp (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental dermatology 13 (1988), S. 0 
    Details
    ISSN: 1365-2230
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Eleven of 12 cases with erosive pustular dermatosis of the scalp gave a history of antecedent physical or infective trauma. We propose that this clinical disorder may be a non-specific inflammatory response to injury of ageing and sun-damaged scalps.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2230.1988.tb00639.x
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  • 3
    Digitale Medien
    Digitale Medien
    An Atlas of Cytopathology of the Head and Neck. Edited by G. Warner-Learmonth. ISBN 0340 74103 1 Arnold £80.00 (2000)
    Oxford, UK : Blackwell Science Ltd
    Cytopathology 11 (2000), S. 0 
    Details
    ISSN: 1365-2303
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2303.2000.00256.x
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  • 4
    Digitale Medien
    Digitale Medien
    Fine needle cytology of palpable head and neck lesions: a comparison of sampling methods with and without suction (1999)
    Oxford, UK : Blackwell Science Ltd
    Cytopathology 10 (1999), S. 0 
    Details
    ISSN: 1365-2303
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Patients attending the ear, nose and throat (ENT) department at St James's University Hospital, Leeds, UK, for evaluation of palpable head and neck lesions have a fine needle cytology (FNC) specimen taken and receive the result at the same out-patient visit. This study was designed to discover if there is a significant difference in the efficiency of the methods with and without suction. The method was chosen randomly on each occasion and the adequacy or otherwise of the specimen was determined taking into account the site and nature of the lesion and the total cellularity of the sample. The level of blood contamination was also compared by each method. When benign and malignant lesions from all sites were analysed together the method with suction produced a significantly higher number of adequate samples than the method without suction. The exception was in the case of samples from lymph node lesions measuring 〈 1 cm, where adequate specimens were only obtained without suction. The non-suction technique was particularly poor at sampling salivary gland lesions in the 1–1.5 cm category. There was no significant difference in the level of blood contamination between the two methods at any site. These results are at variance with most other similar studies and possible reasons for this are discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2303.1999.00156.x
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  • 5
    Digitale Medien
    Digitale Medien
    Catalytic-Iron Filters for Effective and Low-Cost Treatment of Odorous Air (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 13 (1999), S. 0 
    Details
    ISSN: 1747-6593
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik
    Notizen: Several methods are available to remove hydrogen sulphide and volatile organic sulphides from ventilated air at sewage-treatment works. Some methods use alkaline and oxidative chemical scrubbers which may have high capital and operational costs. Other methods, such as bio-scrubbers and bio-filters, are used to biochemically oxidize sulphides. Biological scrubbers have the advantage of low operating costs, but their performance may be adversely affected by a high concentration of sulphide (〉 100 ml/m3).This paper describes the development of a novel, compact and low-cost ‘rusty-iron’ chemical filter which catalyzes the oxidation of hydrogen sulphide and organic sulphides to colloidal sulphur and water. Operating costs are relatively low, with no need for routine maintenance. Full-scale demonstration of the effectiveness of such filters was carried out over two years at several treatment works, the results of which are described and discussed together with details of capital costs. The overall percentage removal of hydrogen sulphide by compact multistage filters was found to exceed 95%, irrespective of inlet sulphide concentrations which varied from 34 to 500 ml/m3 (ppm).
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1747-6593.1999.tb01033.x
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  • 6
    Digitale Medien
    Digitale Medien
    Recent Developments in the Biological Filtration of Sewage to Produce High-Quality Nitrified Effluents (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 11 (1997), S. 0 
    Details
    ISSN: 1747-6593
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik
    Notizen: The biological filtration of sewage remains the process which is most commonly used for small works in rural areas throughout the UK. In many cases, the need to produce an effluent of high quality with full nitrification is essential in order to comply with the standards set by the Environment Agency. Traditionally, design loading rates of biological filters have been based on historical experience of performance, and on relatively short-term statistical evaluation of the performance of a large number of treatment works, using average and maximum values for flow and loading rates. Many works which were designed on such information have failed to nitrify consistently, particularly during the winter and spring months.This paper describes the detailed evaluation of six full-scale, biological-filtration sewage-treatment works over a period of two years, in which there were significant changes in sewage flow rate, composition and temperature, from summer to winter. The key parameters which influence the production of high-quality nitrified effluents were determined. The conclusions are used to provide a detailed guide on the design of conventional-media biological filters to produce, consistently, fully-nitrified effluents.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1747-6593.1997.tb01373.x
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  • 7
    Digitale Medien
    Digitale Medien
    SEQUENCING BATCH REACTORS: A REVIEW (2003)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 17 (2003), S. 0 
    Details
    ISSN: 1747-6593
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik
    Notizen: Sewage treatment using the activated-sludge process evolved from the fill-and-draw system which was developed by Ardern and Lockett in 1914; the sequencing batch reactor is a modern development of this system. Its success is due to modern technology, particularly the programmable logic controller which controls operational sequences. The process has a single rectangular reaction tank where the various sequences of wastewater fill and aeration, activated-sludge settlement and effluent decanting are carried out.This paper reviews the sequencing batch reactor compared with conventional activated sludge, and explains (a) the similarities and differences, (b) the circumstances in which the system is likely to be cost competitive, and (c) modifications that could increase the effectiveness of sequencing batch- reactor systems in the future.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1747-6593.2003.tb00436.x
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  • 8
    Digitale Medien
    Digitale Medien
    Intensification of the Activated-Sludge Process (Abridged) (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 12 (1998), S. 0 
    Details
    ISSN: 1747-6593
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik
    Notizen: During the last thirty years, attempts have been made to increase the rate of treatment of wastewater in compact activated-sludge systems whilst ensuring (a) an adequate supply of dissolved oxygen, (b) good settleability of activated sludge, and (c) consistently high-quality effluents.This paper describes two successful systems, i.e. oxygenated activated sludge and the deep-shaft process, which are used to intensify the rate of treatment in relatively compact aeration tanks. Data are presented of full-scale oxygen activated-sludge systems, including Vitox and Unox, together with information on the operation and performance of the deep-shaft process.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1747-6593.1998.tb00197.x
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  • 9
    Digitale Medien
    Digitale Medien
    Septicity in Sewers: Causes, Consequences and Containment (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 6 (1992), S. 0 
    Details
    ISSN: 1747-6593
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Energietechnik
    Notizen: This paper reviews research and development on the causes, consequences and methods of controlling septicity in sewers. It draws on information given in 55 published papers on the subject. Explanations are given on the deviation of equations used to predict critical conditions in sewers and rising mains. The consequences of septicity, including toxicity, corrosion and odour nuisance, are described and discussed. Prevention is always recommended over cure, but where this cannot be achieved the methods of controlling septicity generally rely on maintaining an adequate supply of oxygen (dissolved or chemically available) to oxidize previously-formed sulphide. Other options to cure the effects of septicity include minimizing the emission of hydrogen sulphide into the atmosphere, deodorizing vented air, and the use of protective coatings or corrosion-resistant pipes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1747-6593.1992.tb00741.x
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  • 10
    Digitale Medien
    Digitale Medien
    In vitro Effect of Bioactive Compounds on Influenza Virus Specific B- and T-Cell Responses (2002)
    Oxford, UK : Blackwell Science Ltd
    Scandinavian journal of immunology 55 (2002), S. 0 
    Details
    ISSN: 1365-3083
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: In vitro studies have demonstrated positive effects of bioactive compounds on several functions of the immune system. In the present study, 25 of such compounds were tested for their immune modulating properties on influenza virus specific human B- and T-cell responses in vitro. One of these compounds, N-acetyl-l-cysteine was shown to increase influenza virus specific lymphocyte proliferation and interferon(IFN)-γ production at a concentration of 1.0 mmol/l. Furthermore, N-acetyl-l-cysteine was found to enhance a specific activity of two influenza specific CD8+ cytotoxic T-lymphocyte clones directed towards HLA-A*0201 and HLA-B*2705 restricted epitopes. A second compound, chlorogenic acid, was shown to enhance antigen specific proliferation of lymphocytes in three out of four donors, at concentrations of 10–50 µmol/l. Neither of the two compounds exhibited a positive effect on the production of influenza virus specific antibodies by human peripheral blood mononuclear cells in vitro.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-3083.2002.01014.x
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