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  • 1
    Electronic Resource
    Electronic Resource
    Moessbauer and EPR Studies of the Binuclear and Trinuclear Antiferromagnetically Coupled Iron(III)-Binding Sites in Ferreascidin (1995)
    s.l. : American Chemical Society
    Inorganic chemistry 34 (1995), S. 1487-1494 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic00110a029
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  • 2
    Electronic Resource
    Electronic Resource
    Copper(II) complexes of the antiulcer drug cimetidine (1980)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 102 (1980), S. 7782-7784 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00546a027
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  • 3
    Electronic Resource
    Electronic Resource
    Non-additive positive inotropic effects of amrinone and ouabain on cat papillary muscles (1984)
    Springer
    Journal of molecular medicine 62 (1984), S. 390-393 
    Details
    ISSN: 1432-1440
    Keywords: Amrinone ; Ouabain ; Positive inotropy ; Cat papillary muscles
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Amrinone has been shown to produce haemodynamic benefits in digitalis-treated patients. Since amrinone is a positive inotropic agent on isolated heart muscle, these benefits may mean that amrinone increases the maximal ouabain-induced increase in force of contraction, without causing toxicity. We have therefore measured, in cat right ventricular papillary muscles, the inotropic effects of ouabain, amrinone alone and amrinone with a maximally effective, non-toxic ouabain concentration (2×10−7 M). Ouabain is much more potent than amrinone (EC50-values: ouabain, 8×10−8 M, amrinone, 1–2.8×10−3 M). The highest amrinone concentration used (6×10−3 M) produced a significantly lower increase in force of contraction than ouabain (2×10−7 M) in the same muscles. After ouabain (2×10−7 M) produced a stable effect, no further increase in force of contraction was observed with any amrinone concentration. Sustained arrhythmias were observed in five of six muscles at 3×10−3 M amrinone with ouabain (2×10−7 M), but in only one of these muscles with amrinone 3×10−3 M alone. Since the positive inotropic effects of amrinone are not additive with those from a maximally effective ouabain concentration, the haemodynamic benefits seen in patients are probably due to non-cardiac effects of amrinone such as vasodilatation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01742294
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  • 4
    Electronic Resource
    Electronic Resource
    Genetic evidence for hybridisation between Haliotis rubra and H. laevigata (1995)
    Springer
    Marine biology 123 (1995), S. 89-93 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Seventeen abalone whose appearance was intermediate between the two commonly fished species in south-eastern Australia, blacklip (Haliotis rubra) and greenlip (H. laevigata), were collected between 1986 and 1989. Protein electrophoresis revealed that rare, morphologically intermediate abalone are predominantly F1 hybrids; others are backcross individuals. There is also evidence of possible local introgression of H. rubra genes into H. laevigata and vice versa in sympatric populations. These two species exhibit marked morphological, behavioural and genetic differences, and yet hybridisation, although rare, occurs in at least several regions of sympatry. The commonly invoked explanations for the breakdown of species barriers, environmental disturbance and rarity of one of the parent species, do not appear applicable, unless microhabitat separation creates local rarity of one species. The frequency of hybridisation is discussed in relation to regional biogeography.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00350327
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  • 5
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    Comment and Correspondence (1982)
    New York : Periodicals Archive Online (PAO)
    Foreign Affairs. 61:2 (1982/1983:Winter) 453 
    Details
    ISSN: 0015-7120
    Topics: Political Science , Law
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:1086-1982-061-02-000012
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of Modified Atmosphere Storage on C. Botulinum Toxigenesis and the Spoilage Microflora of Salmon Fillets (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 46 (1981), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Modified atmosphere (MA) storage in conjunction with refrigeration has been shown to significantly increase the shelf life of fresh fish and other products, but the effects, if any on the outgrowth and toxigenesis of C. botulinum are unknown. A commercial system was duplicated in the laboratory and the effects of modified atmosphere on the outgrowth of C. botulinum types A, B, and E were observed in inoculated salmon fillets and sandwiches stored at 4.4°C and 22.2°C. Inoculated samples stored in air at the same temperatures were used as controls. No toxigensis was observed in either the air or modified samples stored at 4.4°C, but all inoculated samples held at 22.2°C were toxic within 2–3 days. Spoilage generally preceded toxigenesis. In a concurrent study, the tendency of CO2 environments to repress the growth of gram negative bacteria to a greater extent than gram positive bacteria was also noted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1981.tb04450.x
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  • 7
    Electronic Resource
    Electronic Resource
    The Impact of Recent Changes in the Epidemiology of Dental Caries on Guidelines for the Use of Dental Sealants (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of public health dentistry 55 (1995), S. 0 
    Details
    ISSN: 1752-7325
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: This paper reviews recent changes in the epidemiology of dental caries and assesses their potential impact on the diagnosis and management of the disease and the planning and operation of sealant programs. These changes, such as the decline in caries and slowing of the rate of progression of the disease, have important implications for diagnosing and treating incipient lesions, predicting caries risk, and conducting effective disease preventive programs. Traditional paradigms for restoring carious lesions are being replaced by newer strategies that emphasize disease prevention and conservation of tooth structure. The search continues for the identification of practical models for predicting caries risk at the individual level. This paper describes a method useful for targeting resources in sealant placement programs by enabling one to determine the relative effectiveness of sealing alternative tooth surfaces in the oral cavity. One guide serves as a widely adopted manual for those who use or intend to use dental sealants in caries prevention programs. This paper provides a brief review of that document, “Preventing Pit and Fissure Caries: A Guide to Sealant Use,” as well as guidelines for sealant utilization provided by the American Dental Association, and information regarding dental sealant programs under Medicaid. The final portion of the paper provides a synthesis of the epidemiology reviewed and summarizes the implications of findings for sealant programs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-7325.1995.tb02382.x
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  • 8
    Electronic Resource
    Electronic Resource
    Prevalence and Distribution of Dental Restorative Materials in US Air Force Veterans (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of public health dentistry 57 (1997), S. 0 
    Details
    ISSN: 1752-7325
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Objectives: Millions of restorative procedures are performed annually in the United States, yet very little is known about their distribution in the general population. With increasing concern about potential adverse health effects of some restorative materials, a better understanding of the extent of exposure to these materials in the population is important. The purpose of this study is to report the prevalence, patterns, and distribution of dental restorative materials in a population of male veterans. Methods: This collaborative study with the US Air Force examined 1,166 male veterans to assess exposure to dental amalgam and other restorative materials. An inventory of dental materials in the study population was obtained through oral examinations. Dental materials were classified into five categories: (1) amalgam; (2) resin; (3) porcelain, cement, or temporary, including ionomer (PCT); (4) cast gold alloys/direct filling gold; and (5) other metals (OM). The mean age of the study participants was 52.9 years. Over 94 percent of the study participants were dentate. Results: The study participants averaged 45.8 restored/replaced surfaces. Restored/replaced surfaces increased with age while the number of teeth decreased with age. The most frequently used restorative material was amalgam, averaging 19.89 surfaces per subject, followed by PCT (9.38), resins (8.99), OM (5.52), and gold (4.91). The distributions of restorative materials varied by age, arch type, and location in the mouth. Conclusion: The study population experienced substantial exposure to dental materials.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-7325.1997.tb02467.x
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  • 9
    Electronic Resource
    Electronic Resource
    Gingival inflammation and subgingival calculus as determinants of disease progression in early-onset periodontitis (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of clinical periodontology 25 (1998), S. 0 
    Details
    ISSN: 1600-051X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract. This study was undertaken to test the hypothesis that gingival inflammation and dental calculus are important determinants of the development and progression of early-onset periodontitis. The study sample included 156 individuals who were 13–20 years old at baseline and who were examined 2× during 6 years to assess the attachment loss, gingival state and the presence of dental calculus. 33 (21%), 62 (40%), and 61 (39%) individuals were classified as having localized, generalized, or incidental EOP, respectively. The results showed an increase in the % of teeth with overt gingivitis and subgingival calculus, and also an increase in the % of teeth showing attachment loss during the 6-year period in ail classification groups. Of teeth with 0–2 mm attachment loss at the beginning of the study and which developed ≥3 mm attachment loss during the following 6 years, there were 2× as many teeth with overt gingival inflammation, and 4× more teeth with subgingival calculus at baseline than teeth without. Gingivitis and subgingival calculus when present at both examinations resulted in a stronger association with the development of new lesions than presence of these variables at baseline. Teeth with gingivitis at baseline had a significantly higher mean attachment loss during 6 years than teeth without gingivitis (p〈0.0001), and teeth with subgingival calculus at baseline had a significantly higher mean attachment loss than teeth without subgingival calculus (p〈0.0001), The presence of gingivitis and subgingival calculus at baseline and 6 years later was associated with the occurrence of even higher disease progression during this period. The association between gingival inflammation and subgingival calculus and the development and progression of attachment loss during the study period in the generalized and the localized EOP groups was significantly higher than the association in the incidental EOP group. In an appreciable % of the sites in all 3 groups, however, the presence of the 2 factors was not associated with attachment loss during 6 years. The results suggest a significant association between gingival inflammation and subgingival calculus and the development and progression of early-onset periodontitis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-051X.1998.tb02433.x
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  • 10
    Electronic Resource
    Electronic Resource
    Improved periodontal status through self-assessment A 2-year longitudinal study in teenagers (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of clinical periodontology 22 (1995), S. 0 
    Details
    ISSN: 1600-051X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract. Short-term success of the use of self-assessment for motivating adults to improve their oral health status has been reported. The purpose of this trial was to evaluate the long-term effectiveness of two self-assessment strategies, one focused on gingival bleeding (group I) and another focused on plaque (group II). At baseline, 493 14- and 15-year-olds were assigned randomly to a group. Each subject was given a manual describing one of the self-assessment, processes. Dental hygienists provided standardized classroom based instruction and two weeks later, individualized counselling. Examinations were conducted at baseline 6, 12, 18 and 24 months for gingival bleeding on probing, plaque, calculus, and probing depth; and at baseline and 24 months for recession and decayed, missing and filled surfaces (DMFS). Following the 12-momh examination, subjects received an oral prophylaxis and individual counselling. The results revealed no statistically significant differences between groups for any clinical parameter at the final examination. However, the mean number of sites with gingival bleeding decreased steadily from baseline to 24 months with a 59% decrease and 55% decrease for groups I and II, respectively. This study suggests that self-assessment approaches can be effective in improving the long-term periodontal health status of teenagers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-051X.1995.tb00812.x
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