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  • 2000-2004  (19)
  • 1930-1934  (2)
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  • 1
    Digitale Medien
    Digitale Medien
    Control of implicit chaotic maps using nonlinear approximations (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Chaos 10 (2000), S. 676-681 
    Details
    ISSN: 1089-7682
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The technique of using nonlinear approximations to design controllers for chaotic dynamical systems introduced by Yagasaki and Uozumi is extended in order to enable it to be used to design controllers for chaotic dynamical systems that are described by implicit maps and is then used to control the well-known bouncing ball system without recourse to the high-bounce approximation. © 2000 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.1288149
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  • 2
    Digitale Medien
    Digitale Medien
    Reduced-fat foods: the shopper’s viewpoint (2002)
    Oxford, UK : Blackwell Science Ltd
    International journal of consumer studies 26 (2002), S. 0 
    Details
    ISSN: 1470-6431
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Wirtschaftswissenschaften
    Notizen: The inclusion of reduced-fat foods in the daily diet affords consumers the potential to reduce overall dietary fat. Nevertheless, despite an increased range of these food products throughout the market, there has remained a lack of widespread consumer acceptance. The aim of the study was therefore to understand why consumers choose or reject reduced-fat foods. Ninety consumers were interviewed by means of a qualitative approach within food retail outlets in the United Kingdom. Thematic content analysis indicated that uptake or rejection of these products is influenced by health concerns, ‘goodness of fit’ with individual dietary health strategies, the preferences of different household members, perceived sensory properties and scepticism towards these products. The results imply a need to explore and innovate ‘natural’ fat substitutes and to improve the sensory quality of reduced-fat products. Further research is required to determine how these foods are used within the household and incorporated within the overall diet. Policy must seek to restore consumer trust in reduced-fat food products and the food supply generally.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1470-6431.2002.00198.x
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  • 3
    Digitale Medien
    Digitale Medien
    Assessment of tracheal intubation in children after induction with propofol and different doses of remifentanil (2004)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 59 (2004), S. 0 
    Details
    ISSN: 1365-2044
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Tracheal intubating conditions were assessed in 112 children after induction of anaesthesia with propofol and remifentanil 1.0, 2.0 or 3.0 µg.kg−1. Subjects in a control group were given propofol and mivacurium 0.2 mg.kg−1. Haemodynamic and respiratory parameters were recorded. Plasma catecholamine levels were measured in a subgroup of 40 children. Intubating conditions were acceptable in 14/28 (50%), 18/26 (69%) and 22/27 (82%) in those subjects given remifentanil 1.0, 2.0 or 3.0 µg.kg−1, respectively, and in 27/28 (96%) of the control group. Intubating conditions in subjects given remifentanil 3.0 µg.kg−1 were better than in those given remifentanil 1.0 µg.kg−1 (p 〈 0.05). There were no significant differences in intubating conditions between those given remifentanil 3.0 µg.kg−1 and the control group. Systolic blood pressure and heart rate increased in response to tracheal intubation in subjects given remifentanil 1.0 µg.kg−1 and in the control group (p 〈 0.05). Time to resumption of spontaneous respiration was prolonged in subjects given remifentanil 3.0 µg.kg−1 (p 〈 0.001). In conclusion, remifentanil 2 µg.kg−1 provides acceptable intubating conditions and haemodynamic stability without prolonging the return of spontaneous respiration.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2044.2004.03524.x
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  • 4
    Digitale Medien
    Digitale Medien
    Tracheal intubating conditions after induction with sevoflurane 8% in children (2000)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 55 (2000), S. 0 
    Details
    ISSN: 1365-2044
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: We studied tracheal intubating conditions in 120 healthy children, aged 3–12 years, in a blinded, randomised clinical trial. Children were randomly allocated to one of three groups: group PS, propofol 3 mg.kg−1 and succinylcholine 1 mg.kg−1 (n = 40); group PA, propofol 3 mg.kg−1 and alfentanil 10 µg.kg−1 (n = 40); group SF, sevoflurane 8% in 60% nitrous oxide in oxygen for 3 min (n = 40). Tracheal intubating conditions were graded according to ease of laryngoscopy, position of vocal cords, coughing, jaw relaxation and movement of limbs. Overall intubating conditions were acceptable in 39 of 40 children in the propofol/succinylcholine group, 21 of 40 children in the propofol/alfentanil group and 35 of 40 children in the sevoflurane group. Children receiving propofol and succinylcholine or sevoflurane had better intubating conditions overall than those given propofol and alfentanil (p 〈 0.01). In conclusion, anaesthetic induction and tracheal intubation using sevoflurane 8% for 3 min is a satisfactory alternative to propofol with succinylcholine in children.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2044.2000.01470.x
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  • 5
    Digitale Medien
    Digitale Medien
    Intrathecal alfentanil with and without bupivacaine for analgesia in labour (2000)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 55 (2000), S. 0 
    Details
    ISSN: 1365-2044
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Combined spinal–epidural (CSE) for analgesia in labour is widely used as a method of providing pain relief while minimising motor blockade. Aiming to further reduce the associated motor weakness, we investigated the use of alfentanil alone as the initial intrathecal injection in a double-blind study. Thirty women were randomly allocated to receive either alfentanil 0.25 mg with bupivacaine 2.5 mg intrathecally, or alfentanil 0.25 mg in the same volume. Onset of analgesia did not differ significantly between groups but duration was significantly longer in those receiving alfentanil–bupivacaine (mean 55 min vs. 40 min; p 〈 0.05). Quality of analgesia was satisfactory for all women, although the cumulative analgesia scores were significantly lower in the women receiving the alfentanil–bupivacaine mixture (p = 0.003). More women in the alfentanil–bupivacaine group developed both a sensory level (15/15 vs. 6/15; p 〈 0.01) and sympathetic block (12/15 vs. 4/15; p 〈 0.01). Sixty per cent of women receiving the alfentanil–bupivacaine mixture demonstrated an impaired ability to straight leg raise compared with none of the women in the alfentanil–saline group (p 〈 0.01). The incidence of adverse effects in mother and fetus was similar in both groups. We conclude that intrathecal alfentanil 0.25 mg alone as part of a CSE technique provides rapid analgesia of satisfactory quality without detectable motor blockade.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2044.2000.01547-3.x
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  • 6
    Digitale Medien
    Digitale Medien
    Probable seizure after remifentanil in a 4-year-old boy (2000)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 55 (2000), S. 0 
    Details
    ISSN: 1365-2044
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2044.2000.01425-19.x
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  • 7
    Digitale Medien
    Digitale Medien
    STEREOCHEMISTRY OF PHENYLQUINONES. THE PREPARATION AND RESOLUTION OF 2-(3-BROMO-2,4,6-TRIMETHYLPHENYL)-5-METHYLBENZO-QUINONE-3,6-DI-(ACETIC ACID). XVIII1 (1931)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 53 (1931), S. 3453-3461 
    Details
    ISSN: 1520-5126
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ja01360a033
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  • 8
    Digitale Medien
    Digitale Medien
    The Faraday resonance of interfacial waves in weakly viscous fluids (2002)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 14 (2002), S. 158-169 
    Details
    ISSN: 1089-7666
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The Faraday resonance of interfacial waves in a two-layer, weakly-viscous system in a rectangular domain is presented. A perturbation analysis is pursued and, at the second-order, the scaling of the viscosity results in boundary layer corrections at the solid walls and at the interface. Special attention is paid to the damping in the meniscus region where the interface contacts the side-walls. As a result of the presence of both destabilizing effects (vertical oscillation) and stabilizing effects (viscosity), a threshold condition for instability is determined. The derived analytic results are quite general and prove useful in elucidating the influences of the various boundary layers, as well as the threshold for growth. In an effort to describe the maximum amplitude attained by the resonated wave, a third-order analysis is then presented for the idealized case of equal-depth, inviscid layers, with a rigid-lid condition at the free surface. A balance between cubic nonlinearity and the vertical shaking yields a Landau-type equation for the interfacial wave amplitude. Comparisons with some existing experimental data are made at both orders and indicate very good agreement. © 2002 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.1425846
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  • 9
    Digitale Medien
    Digitale Medien
    Evaluation of the Allergenicity and Antigenicity of Bovine-Milk αs1-Casein Using Extensively Purified Synthetic Peptides (2004)
    Oxford, UK; Malden, USA : Blackwell Science Ltd
    Scandinavian journal of immunology 60 (2004), S. 0 
    Details
    ISSN: 1365-3083
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: αs1-Casein (CAS1_BOVIN), the major allergen of cow's milk (CM), is widely used as hydrolysates in infant diet formulae and additive to other processed food items. To date, most of the reported B-cell epitope mapping were performed on polyethylene pins or cellulose-derivative membrane. We sought to locate the motifs critical for human-specific IgE and rabbit polyclonal IgG binding using extensively purified CAS1_BOVIN, synthetic peptides and derivatives. Thirteen overlapping peptides covering the whole CAS1_BOVIN encompassing 17 : 20 amino acid (AA) were synthesized by f-moc AA solid-phase polyamide peptide synthesis. In addition, six cyanogen bromide (CNBr) cleavage fragments were prepared. Limited hydrolysis, oxidized and reduced/alkylated derivatives were also produced. The preparations were purified by ion exchange, gel filtration chromatography, reversed phase and high-performance liquid chromatography. The homogeneity was visualized by sodium dodecyl sulfate (SDS) and poly acryl amide gel electrophoresis (PAGE) followed by IgE and IgG immunoblotting. IgE binding was measured by Biotin Streptavidin (Bio/strep) fluoro enzyme immuno assay (FEIA) or ELISA-inhibition. Eighteen CM allergy (CMA) sera from 45 clinically examined children (Melbourne) and five adults (Bergen) were selected. Individual sera and pools were used for mapping IgE-binding epitopes. Rabbit IgG sera and pools were used for locating the antigenic sites of the molecule. Results indicated that all the individual CMA sera and pools recognized the intact molecule and three of the CNBr fragments as major antibody-binding allergens. The N- and C-terminal peptides (CAS 16-35; CAS 136-155) showed high IgE-binding affinity. CAS 1-18 and CAS 181-199 showed high IgG bindings. Considering the diversity of the antibody specificities, a reasonable agreement between IgE and IgG epitopes were found at the N- and C-terminals of CAS1_BOVIN. Mapping IgE B-cell epitopes by direct Bio/strep FEIA allowed the development of a sensitive modified technique for detecting unlabelled, casein immune dominant peptides in food products.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.0300-9475.2004.01493.x
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  • 10
    Digitale Medien
    Digitale Medien
    Food allergy and atopic dermatitis in infancy: an epidemiologic study (2004)
    Oxford, UK : Munksgaard International Publishers
    Pediatric allergy and immunology 15 (2004), S. 0 
    Details
    ISSN: 1399-3038
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Atopic dermatitis is common in infancy. The role of food allergy in atopic dermatitis of infancy is unclear. We examined the relationship between atopic dermatitis and immunoglobulin E (IgE)-mediated food allergy in infancy. A birth cohort of 620 infants with a family history of eczema, asthma, hayfever or immediate food allergy in a parent or sibling: 487 children had complete data including skin prick tests (SPTs) to evaluate IgE-mediated food allergy to cow milk, egg and peanut. Participants were grouped as no atopic dermatitis (Gp 0) or in quartiles of increasing severity of atopic dermatitis (Gps 1–4) quantified by days of topical steroid use as reported monthly. Adverse reactions to foods were recorded. The cumulative prevalence of atopic dermatitis was 28.9% to 12 months (10.3% of the cohort of moderate severity). As atopic dermatitis severity increased so did the prevalence of IgE-mediated food allergy (Gp 0, 40/346 vs. Gp 1, 6/36 vs. Gp 2, 8/35 vs. Gp 3, 12/35 vs. Gp 4, 24/35; χ2 = 76; p 〈 10−6), and the frequency of reported adverse food allergy reactions (Gp 0, 43/346 vs. Gp 1, 4/36 vs. Gp 2, 8/35, vs. Gp 3, 5/35, vs. Gp 4, 13/35; χ2 = 17; p = 0.002). The relative risk of an infant with atopic dermatitis having IgE-mediated food allergy is 5.9 for the most severely affected group. Atopic dermatitis is common in infancy. There is a strong association between IgE-mediated food allergy and atopic dermatitis in this age group.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1399-3038.2004.00178.x
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