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  • 1
    Electronic Resource
    Electronic Resource
    An epidemiologic survey of periodontal disease in Dutch adults (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 6 (1978), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: abstract An epidemiologic survey was carried out to assess the prevalence and severity of periodontal disease in randomly selected samples of employed populations in the Netherlands. Of the 1,337 persons examined by five examiners, 19.8 % were edentulous; 61 % of dentate persons had intense gingivitis in an average of 2.4 segments of their mouths; 53 % had pockets of 3–6 mm and a further 10.1 % had pockets of greater than 6 mm. The prevalence of gingivitis and pocketing increased with increasing age and decreasing levels of education. As no measures of predicting compliance were used and because treatment philosophies differ, no reasonable assessment of treatment needs could be made.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1978.tb01123.x
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  • 2
    Electronic Resource
    Electronic Resource
    Fusarium resistance in Gladiolus: Selection in seedling populations (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 116 (1997), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A test to select Fusarium resistant seedlings of Gladiolus is described. Seedlings of 37 populations, obtained from an incomplete diallel between eight parents with different levels of Fusarium resistance, were used. Significant differences in Fusarium infection between and within populations were detected. Most of the descendants selected had a resistant G. dalenii genotype as one of the parents. The resistance level of the parents was associated with the general combining ability for Fusarium resistance based on the seedling test. Implications for resistance breeding are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1997.tb00997.x
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  • 3
    Electronic Resource
    Electronic Resource
    Synthesis, structure, and spectroscopic and magnetic properties of a new class of dimeric, fluoro-bridged high-spin cobalt(II) compounds containing substituted-pyrazole ligands (1978)
    s.l. : American Chemical Society
    Inorganic chemistry 17 (1978), S. 1990-1994 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50185a060
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  • 4
    Electronic Resource
    Electronic Resource
    Interleukin 10 Release During Endotoxaemia in Chimpanzees: Role of Platelet-Activating Factor and Interleukin 6 (1996)
    Oxford, U.K. and Cambridge, USA : Blackwell Science Ltd
    Scandinavian journal of immunology 43 (1996), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Interleukin (IL-)10 has been demonstrated to inhibit endotoxin-induced production of a number of pro-inflammatory cytokines. The present study sought to compare the appearances in the circulation of IL-10, IL-6 and IL-8, and to assess the roles ofendogenously produced platelet-activating factor (PAF) and IL-6 in IL-10 release during endotoxaemia in chimpanzees. Intravenous injection of endotoxin (lot EC-5, 4 ng/kg, n = 8) induced a transient rise in serum IL-10concentrations, peaking after 2 h (213 ± 70 pg/ml; P 〈 0.05). No correlations existed between peak IL-10 levels, and peak IL-6 and IL-8 levels. Neither infusion of the specific PAF antagonist TCV-309(n = 4), nor infusion of a neutralizing anti-IL-6 monoclonal antibody (n = 4) influenced endotoxin-induced IL-10 release. IL-10 release elicited by injection of endotoxin is not mediated by PAF or IL6. Tom van der Poll MD, Academic Medical Center, Department of Internal Medicine, F4222, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3083.1996.d01-12.x
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  • 5
    Electronic Resource
    Electronic Resource
    Review article: symptom improvement through eradication of Helicobacter pylori in patients with non-ulcer dyspepsia (1996)
    Oxford BSL : Blackwell Science
    Alimentary pharmacology & therapeutics 10 (1996), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The aim of this article is to determine, by reviewing the literature, whether treatment of Helicobacter pylori infection in patients with non-ulcer dyspepsia affects symptoms. Ten publications were identified through a computerized and manual literature search, and the percentage of patients with symptom improvement after successful or unsuccessful eradication therapy for H. pylori infection was calculated. In the 10 studies, symptom improvement after treatment was found in 73% of the patients that became H. pylori-negative and 45% of the patients that remained H. pylori-positive. Symptom improvement was modified by various clinical features and methodological aspects. If eradication of H. pylori failed, symptoms only improved over a short period. Symptom improvement was more pronounced in dyspeptic patients in whom H. pylori was eradicated than in those in whom H. pylori infection persisted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.1996.86258000.x
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  • 6
    Electronic Resource
    Electronic Resource
    Estimating the cost of lost productivity in dyspepsia (1998)
    Oxford UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 12 (1998), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In the field of gastrointestinal disease, productivity costs are highly relevant because work loss is substantial in dyspeptic patients. Productivity costs are normally calculated by multiplying days absent valued by gross earnings. This, however, might lead to an overestimation.〈section xml:id="abs1-2"〉〈title type="main"〉Aim:To use a conservative approach to calculating productivity costs, taking absence compensating mechanisms into account.〈section xml:id="abs1-3"〉〈title type="main"〉Methods:Patients who visited their general practitioner for the first time with dyspeptic complaints and patients who were known to have persistent dyspeptic complaints were enrolled in two studies. In total, 136 patients completed a questionnaire about their employment situation, absence from work and absence compensating mechanisms.〈section xml:id="abs1-4"〉〈title type="main"〉Results:Sixty-six of the respondents had a paid job, of which 25 (38%) reported absence from work during the previous 4 weeks (average 3.0 days, 1.9 days related to dyspeptic complaints). More than 50% of the employed respondents answered that absence could be compensated for by colleagues, and only in 8% of the cases was absence compensated for by overtime. Using our conservative approach, only one-quarter of the productivity costs remained, compared to the current approach of valuing each day absent as a loss of productivity.〈section xml:id="abs1-5"〉〈title type="main"〉Conclusions:We suggest using both the current and the conservative approaches, analogous to the principles of sensitivity analysis, to avoid overestimation of productivity costs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.1998.00376.x
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  • 7
    Electronic Resource
    Electronic Resource
    Single-crystal structure analysis and energy minimizations of a MFI-type zeolite at low p-dichlorobenzene sorbate loading (1996)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 52 (1996), S. 131-139 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The crystal structure of a low-loaded adsorption complex of H-ZSM-5 with p-dichlorobenzene has been studied by single-crystal X-ray diffraction. The controversy in the literature, concerning the preferred location of the p-dichlorobenzene molecule, is explained by different interpretations of the difference electron-density map representing the electron density of the absorbed molecule. The crystal studied contains 2.56 (2) p-dichlorobenzene molecules per unit cell. The absorbed molecules prefer the position at the intersection of channels. Energy calculations, using the Biosym Catalysis and Sorption Software, strongly support this interpretation. In nearly all calculations the orientation of the relaxed molecule is close to the orientation found from the X-ray analysis. A second rotational position at the intersection, suggested from calculations in a fully relaxed structure, resembles the location of the p-xylene molecule at the intersection of channels in the high-loaded H-ZSM-5/8p-xylene complex. The unit cell of Si11.96Al0.04O24.0.32C6H4Cl2(+ 0.04H+), Mr = 767.42, is orthorhombic, Pnma, with a = 20.009 (3), b = 19.909 (4), c = 13.366 (2) Å, V = 5324 (2) Å3, Z = 8, Dx = 1.922 Mg m−3 and μ(Mo Kα) = 0.734 mm−1. The final R(wR) is 0.044 (0.048), w = 1/σ2(F), for 5306 observed reflections with I〉 2.0σ(I) measured at 293 K.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108768195008512
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  • 8
    Electronic Resource
    Electronic Resource
    The estimation of crystal thickness and the restoration of structure-factor modulus from electron diffraction: a kinematical approach (1995)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 51 (1995), S. 188-197 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: A technique of crystal-thickness estimation and structure-factor-modulus restoration (reconstruction) from electron diffraction patterns, for use in crystal-structure determination, is proposed based on the kinematic scattering theory. A criterion for a self-consistent test of the restored structure-factor modulus has also been introduced from the structure-factor statistics developed by direct methods for X-ray diffraction. Theoretical tests on some structures are successful and show that the diffraction intensities are improved to be closer to the moduli of the true structure factors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108767394010287
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  • 9
    Electronic Resource
    Electronic Resource
    MSLS, a Least-Squares Procedure for Accurate Crystal Structure Refinement from Dynamical Electron Diffraction Patterns (1998)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 54 (1998), S. 91-101 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: In X-ray crystallography, a least-squares structure refinement is used to two purposes: to prove the correctness of the proposed model and to improve it. In electron crystallography, the same tool would be desirable. However, the standard programs for least-squares structure refinement used in X-ray diffraction may give wrong results using electron diffraction data because the kinematically calculated diffracted intensity is not valid for the interaction of electrons and crystals thicker than about 20 Å for strong scatterers. In this paper, a new approach is presented that overcomes this problem and in addition takes into account all the advantages contained in dynamic scattering. The multislice method, well known in high-resolution electron microscopy (HREM), was combined with a least-squares algorithm, resulting in the multislice least-squares (MSLS) procedure. Experiments show that the atomic positions obtained by the new procedure are of the same accuracy as those obtained from single-crystal X-ray diffraction. However, the size of the single crystals used is much smaller (diameters down to ±100 Å). Also, light-atom positions can be determined with high precision by using data sets from crystal areas with different thicknesses. The multislice refinement gave good results up to 150 to 400 Å depending on the composition of the crystal, with R values based on the intensities of less than 5%. An additional advantage of the approach is that some extra quantities (e.g. crystal thickness, crystal orientation) can be refined at the same time.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108767397010489
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  • 10
    Electronic Resource
    Electronic Resource
    The location of p-dichlorobenzene in a single crystal of zeolite H-ZSM-5 at high sorbate loading (1996)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 52 (1996), S. 140-144 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The crystal structure of a high-loaded complex of H-ZSM-5 with eight molecules of p-dichlorobenzene per unit cell has been solved by single-crystal X-ray diffraction. The orthorhombic space group P212121 with a = 20.102 (6), b = 19.797 (9), c = 13.436 (3) Å and V = 5347 (3) Å3 has four Si23.92Al0.08O48.2C6H4Cl2 units per unit cell. Dx = 2.164 Mg m−3, λ(MoKα) = 0.71073 Å and μ(Mo Kα) = 0.876 mm−1. The final R(wR) = 0.046 (0.039), w = 1/σ2(F), for 6090 observed reflections with I 〉 1.0σ(I) measured at 293 K. The straight channel parallel to [010] is slightly corrugated. The elliptical cross sections have limiting apertures of 6.0 × 4.9 Å (roxygen = 1.35 Å). The sinusoidal channel parallel to [100] is elliptical with major and minor axes of 6.1 × 4.8 Å, respectively. One of the two independent p-dichlorobenzene molecule lies at the intersection of the straight and sinusoidal channels with its long molecular axis almost parallel to (100) and deviating 8̃° from [010]. The second p-dichlorobenzene molecule is in the sinusoidal channel. Its long molecular axis deviates almost 7° from [100] and is practically parallel to (010). The structural aspects are in all details comparable to those in the high-loaded H-ZSM-5/p-xylene complex [van Koningsveld, Tuinstra, van Bekkum & Jansen (1989). Acta Cryst. B45, 423–431] , except for the main interaction forces between the p-dichlorobenzene molecules at the channel intersection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108768195008524
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