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  • 2005-2009  (1)
  • 2000-2004  (20)
  • 1990-1994  (23)
  • 1975-1979  (4)
  • 1940-1944  (1)
  • 11
    Electronic Resource
    Electronic Resource
    Infiltration Systems: A Sustainable Source-Control Option for Urban Stormwater Quality Management? (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 14 (2000), S. 0 
    Details
    ISSN: 1747-6593
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Source control is regarded as a key principle in supporting concepts of sustainable management and integrated pollution control for diffuse non-point stormwater runoff, with infiltration procedures being a prime component of such source-control systems. The potential conflicts between the benefits of groundwater recharge and the risks to long-term groundwater quality uncertainties associated with infiltration disposal are considered. The long-term performance of a number of infiltration systems is reported in terms of their pollutant removal efficiencies, and the utility of an infiltration acceptability matrix approach is reviewed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1747-6593.2000.tb00222.x
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  • 12
    Electronic Resource
    Electronic Resource
    Photoluminescence and reflection high-energy electron diffraction study of GaAs/AlxGa1−xAs(100) single quantum wells grown via molecular beam epitaxy employing two forms (As2 and As4) of arsenic (1990)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 57 (1990), S. 2333-2335 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Photoluminescence (PL) and intensity behavior of a reflected high-energy electron diffraction (RHEED) beam are examined for GaAs/AlxGa1−xAs (x=0.5 and 0.7) single quantum wells grown via molecular beam epitaxy under dimeric (As2) and tetrameric (As4) arsenic pressures. The growth conditions for AlxGa1−xAs and GaAs layers in a single quantum well are determined via RHEED. Results show that PL linewidth and intensity are correlated with RHEED intensity and that the dual arsenic source scheme produces superior quality GaAs/AlxGa1−xAs heterostructures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.103885
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  • 13
    Electronic Resource
    Electronic Resource
    Disposition of nifedipine in plasma and gingival crevicular fluid in relation to drug-induced gingival overgrowth (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of periodontal research 28 (1993), S. 0 
    Details
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The present study investigates the relationship between the pharmacokinetic variables of nifedipine with the incidence and severity of gingival overgrowth in 9 adult male patients medicated with the drug for at least 6 months. Five of the patients had experienced significant gingival changes and were thus designated “responders”. The remaining four patients exhibited no gingival overgrowth, and thus acted as a control. A baseline periodontal examination (plaque scores, bleeding index and gingival overgrowth assessment) was carried out on each patient, and confined to the upper and lower anterior teeth. Serial blood and gingival crevicular fluid samples were collected over an eight-hour investigation period. Samples were analyzed for nifedipine by gas chromatography. No significant difference (p〉0.05) was seen between responders and non-responders with regard to drug therapy, periodontal parameters or plasma pharmacokinetics of nifedipine. Nifedipine was detected in the gingival crevicular fluid of seven subjects (all responders, and two non-responders). The peak concentration of nifedipine in crevicular fluid was 15–90 fold greater than levels observed in plasma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0765.1993.tb01081.x
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  • 14
    Electronic Resource
    Electronic Resource
    Sustainable Urban-Drainage Systems and Catchment Planning (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 16 (2002), S. 0 
    Details
    ISSN: 1747-6593
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Partnership initiatives to address the problem of diffuse pollution from impermeable surface runoff within urban catchments are reviewed, with particular reference to mutual stakeholder duties and interests which are vested in the regulatory agencies, planning authorities, developers, water companies and highway agencies within the UK. The role of ‘sustainable urban-drainage systems’within integrated catchment-based approaches is considered in the context of the requirements of the EU Water Framework Directive and strategic river-basin management planning.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1747-6593.2002.tb00418.x
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  • 15
    Electronic Resource
    Electronic Resource
    The Laugier—Hunziker syndrome—a clinical review of six cases (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental dermatology 15 (1990), S. 0 
    Details
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The Laugier-Hunziker syndrome is an acquired, benign, macular hyperpigmentation of the lips and buccal mucosa. The nails arc often involved with the development of melanonychia. Twenty-two previous cases have been recorded in the literature. We present details of six Caucasian patients with the Laugier-Hunziker syndrome who are the first recorded from Britain. They all had acquired, macular hyperpigmentation of the lips and buccal mucosa. In five of these patients longitudinal pigmented bands were found on the nails. None had other family members affected. Although this is the first report of British patients with this syndrome, we believe that the condition is probably more common than is generally recognized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2230.1990.tb02044.x
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  • 16
    Electronic Resource
    Electronic Resource
    Subungual keratoacanthoma—a report of four cases and review of the literature (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental dermatology 19 (1994), S. 0 
    Details
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Subungual keratoacanthoma is a rare benign neoplasm which most commonly occurs in middle-aged Caucasians. It usually presents as a painful, rapidly growing lesion of the terminal phalanx. Radiography consistently demonstrates a well-defined cup-shaped erosion of the underlying bone. Clinically, subungual keratoacanthoma must be distinguished from subungual squamous carcinoma. We report four further cases and discuss the literature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2230.1994.tb01173.x
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  • 17
    Electronic Resource
    Electronic Resource
    Analysis of changes in gingival contour from three-dimensional co-ordinate data in subjects with drug-induced gingival overgrowth (2005)
    Oxford, UK : Munksgaard International Publishers
    Journal of clinical periodontology 32 (2005), S. 0 
    Details
    ISSN: 1600-051X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Objectives: This aim of this study was to develop and assess a technique that could be used to assess accurately the gingival volume changes seen in drug-induced gingival overgrowth by the analysis of data obtained from an entire gingival surface by means of three-dimensional imaging.Material and Methods: Stone dental models of patients before and after gingivectomy procedures were digitized with a laser scanner and then regenerated as computer models constructed from the acquired three-dimensional co-ordinate data. A comparison of superposed “before” and “after” surfaces was undertaken to assess and accurately quantify changes in gingival contour.Results: The mean vertical tissue reduction varied from 1.58 to 2.56 mm in the four study subjects and individual differences are shown. The maximum thickness of removed buccal gingival overgrowth was found to range between 1.20 and 3.40 mm. The volume of tissue removed from each inter-dental papilla ranged from 4.2 to 46.1 mm3 and the mean volume of the papilla removed from each subject±SD values was 24.8±13.1 mm3.Conclusion: This method will measure changes in gingival tissues to within 60 μm in one plane, making it ideal for the assessment of longitudinal changes in gingival contour as seen in the development of gingival overgrowth, its recurrence after surgery or the changes in volume brought about by surgery.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-051X.2005.00769.x
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  • 18
    Electronic Resource
    Electronic Resource
    Amlodipine-induced gingival overgrowth (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of clinical periodontology 21 (1994), S. 0 
    Details
    ISSN: 1600-051X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract Amlodipine is a calcium channel blocker used in the management of angina and hypertension. We report 3 cases of gingival overgrowth in adult dentate patients associated with chronic usage of this drug. Gingival changes occurred within 3 months of dosage and appeared to be compounded by the patient's existing periodontal condition. In all 3 patients, there was sequestration of amlodipine in their crevicular fluid. The significance of this finding in relation to the pathogenesis of this unwanted effect remains to be elucidated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-051X.1994.tb00318.x
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  • 19
    Electronic Resource
    Electronic Resource
    Prevalence of gingival overgrowth in transplant patients immunosuppressed with tacrolimus (2004)
    Oxford, UK : Munksgaard International Publishers
    Journal of clinical periodontology 31 (2004), S. 0 
    Details
    ISSN: 1600-051X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Aims: The study aims to determine the prevalence and severity of gingival overgrowth in a group of adult organ transplant recipients immunosuppressed with tacrolimus in comparison with ciclosporin, and to examine various risk factors for the development of gingival overgrowth.Methods: Forty patients taking tacrolimus were compared with 197 ciclosporin patients. Demographic, pharmacological and periodontal data were recorded for all patients. Comparison between the groups was made using independent sample t-tests, χ2 statistic or Mann–Whitney test. The effects of risk variables on overgrowth severity were examined using forward and backward stepwise regression analysis.Results: Those taking tacrolimus had a significantly lower mean gingival overgrowth score (14.1%) compared with ciclosporin (22.4%). Fifteen percent of the tacrolimus group had clinically significant gingival overgrowth compared with 30% in the ciclosporin group (p=0.053).Conclusions: The prevalence and severity of gingival overgrowth is less in adult transplant patients taking tacrolimus compared with ciclosporin. Concomitant use of calcium channel blockers and previous medication with ciclosporin are significant risk factors for the presence and severity of gingival overgrowth. Patients who have alteration of their immunosuppressant from ciclosporin to tacrolimus may persist in demonstrating gingival overgrowth attributable to their ongoing therapy with calcium channel blockers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.0303-6979.2004.00459.x
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  • 20
    Electronic Resource
    Electronic Resource
    Cardiovascular diseases and periodontology (2003)
    Oxford, UK : Munksgaard International Publishers
    Journal of clinical periodontology 30 (2003), S. 0 
    Details
    ISSN: 1600-051X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background:  Cardiovascular diseases represent a widespread heterogeneous group of conditions that have significant morbidity and mortality. The various diseases and their treatments can have an impact upon the periodontium and the delivery of periodontal care.Aim:  In this paper we consider three main topics and explore their relationship to the periodontist and the provision of periodontal treatment.Method:  The areas reviewed include the effect of cardiovascular drugs on the periodontium and management of patients with periodontal diseases; the risk of infective endocarditis arising from periodontal procedures; the inter-relationship between periodontal disease and coronary artery disease.Results and conclusions:  Calcium-channel blockers and β-adrenoceptor blockers cause gingival overgrowth and tooth demineralisation, respectively. Evidence suggests that stopping anticoagulant therapy prior to periodontal procedures is putting patients at a greater risk of thromboembolic disorders compared to the risk of prolonged bleeding. The relationship between dentistry and infective endocarditis remains a controversial issue. It would appear that spontaneous bacteraemia arising from a patient's oral hygiene practices is more likely to be the cause of endocarditis than one-off periodontal procedures. The efficacy of antibiotic prophylaxis is uncertain (and unlikely to be proven), and the risk of death from penicillin appears to be greater than the risk of death arising from infective endocarditis. Finally, the association between periodontal disease and coronary artery disease has been explored and there seem to be many issues with respect to data handling interpretation. Many putative mechanisms have been suggested; however, these only further highlight the need for intervention studies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1600-051X.2003.00291.x
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