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  • 11
    Electronic Resource
    Electronic Resource
    Protein kinase C modulators. Indolactams. 2.^1 Alkylation of 4-nitroindole by Grignard reagents. Synthesis of (-)-7-octylindolactam V
    Amsterdam : Elsevier
    Tetrahedron Letters 35 (1994), S. 8553-8556 
    Details
    ISSN: 0040-4039
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(00)78434-6
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  • 12
    Electronic Resource
    Electronic Resource
    A novel synthetic method for angularly functionalized polycyclic systems by vinylogous wolff rearrangement of β, γ-unsaturated diazoketones
    Amsterdam : Elsevier
    Tetrahedron Letters 27 (1986), S. 3913-3914 
    Details
    ISSN: 0040-4039
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(00)83915-5
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  • 13
    Electronic Resource
    Electronic Resource
    Production of xylitol by Candida peltata (1999)
    Springer
    Journal of industrial microbiology and biotechnology 22 (1999), S. 633-636 
    Details
    ISSN: 1476-5535
    Keywords: Keywords: xylitol production; xylose fermentation; mixed sugars utilization; Candida peltata
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Candida peltata NRRL Y-6888 to ferment xylose to xylitol was evaluated under different fermentation conditions such as pH, temperature, aeration, substrate concentration and in the presence of glucose, arabinose, ethanol, methanol and organic acids. Maximum xylitol yield of 0.56 g g−1 xylose was obtained when the yeast was cultivated at pH 6.0, 28°C and 200 rpm on 50 g L−1 xylose. The yeast produced ethanol (0.41 g g−1 in 40 h) from glucose (50 g L−1) and arabitol (0.55 g g−1 in 87 h) from arabinose (50 g L−1). It preferentially utilized glucose 〉 xylose 〉 arabinose from mixed substrates. Glucose (10 g L−1), ethanol (7.5 g L−1) and acetate (5 g L−1) inhibited xylitol production by 61, 84 and 68%, respectively. Arabinose (10 g L−1) had no inhibitory effect on xylitol production.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/sj.jim.2900674
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  • 14
    Electronic Resource
    Electronic Resource
    Shape changes and test of the critical-point symmetry X(5) in N = 90 nuclei (2003)
    Springer
    The European physical journal 20 (2003), S. 173-178 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. Reliable and precise lifetimes of excited states in 154 Gd and 156 Dy were measured using the recoil distance Doppler shift (RDDS) technique. Excited states of 154 Gd were populated via Coulomb excitation with a 32 S beam at 110 MeV delivered by the FN tandem accelerator at the University of Cologne. For 156 Dy a coincidence plunger experiment was performed at the Laboratori Nazionali di Legnaro with the GASP spectrometer and the Cologne coincidence plunger apparatus using the reaction 124 Sn(36 S,4n)156 Dy at a beam energy of 155 MeV. Shape changes previously suggested to appear in the ground-state band (gsb) of 156 Dy and in the s-band above the first band crossing were not supported by the transition probabilities determined in this work. The measured transition probabilities of 156 Dy and 154 Gd as well as the corresponding energy spectra are compared with the predictions of the recently proposed X(5) model and in the case of 156 Dy also with an IBA fit.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epja/i2002-10347-6
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  • 15
    Electronic Resource
    Electronic Resource
    Baccatin, a novel nor-triterpene peroxide isolated from sapium baccatum roxb.
    Amsterdam : Elsevier
    Tetrahedron Letters 18 (1977), S. 3095-3098 
    Details
    ISSN: 0040-4039
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(01)83168-3
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  • 16
    Electronic Resource
    Electronic Resource
    Soliton model of atom (1995)
    Springer
    Foundations of physics 25 (1995), S. 1723-1731 
    Details
    ISSN: 1572-9516
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Einstein-de Broglie soliton concept is applied to simulate stationary states of an electron in a hydrogen atom. According to this concept, the electron is described by the localized regular solutions to some nonlinear equations. It is shown that the electron-solilon center travels along some stationary orbit around the Coulomb center. The electromagnetic radiation is absent as the Poynting vector has non-wave asymptote O(r −3)after averaging over angles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02057884
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  • 17
    Electronic Resource
    Electronic Resource
    Production of L-arabitol from L-arabinose by Candida entomaea and Pichia guilliermondii (1996)
    Springer
    Applied microbiology and biotechnology 45 (1996), S. 299-306 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract  Lignocellulosic biomass, particularly corn fiber, represents a renewable resource that is available in sufficient quantities from the corn wet milling industry to serve as a low cost feedstock for production of fuel alcohol and valuable coproducts. Several enzymatic and chemical processes have potential for the conversion of cellulose and hemicellulose to fermentable sugars. The hydrolyzates are generally rich in pentoses (D-xylose and L-arabinose) and D-glucose. Yeasts produce a variety of polyalcohols from pentose and hexose sugars. Many of these sugar alcohols have food applications as low-calorie bulking agents. During the screening of 49 yeast strains capable of growing on L-arabinose, we observed that two strains were superior secretors of L-arabitol as a major extracellular product of L-arabinose. Candida entomaea NRRL Y-7785 and Pichia guilliermondii NRRL Y-2075 produced L-arabitol (0.70 g/g) from L-arabinose (50 g/l) at 34°C and pH 5.0 and 4.0, respectively. Both yeasts produced ethanol (0.32–0.33 g/g) from D-glucose (50 g/l) and only xylitol (0.43–0.51 g/g) from D-xylose (50 g/l). Both strains preferentially utilized D-glucose〉D-xylose〉L-arabinose from mixed substrate (D-glucose, D-xylose and L-arabinose, 1:1:1, 50 g/l, total) and produced ethanol (0.36–0.38 g/g D-glucose), xylitol (0.02–0.08 g/g D-xylose) and L-arabitol (0.70–0.81 g/g L-arabinose). The yeasts co-utilized D-xylose (6.2–6.5 g/l) and L-arabinose (4.9–5.0 g/l) from corn fiber acid hydrolyzate simultaneously and produced xylitol (0.10 g/g D-xylose) and L-arabitol (0.53–0.54 g/g L-arabinose).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002530050687
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  • 18
    Electronic Resource
    Electronic Resource
    Production of 2,3-butanediol by newly isolated Enterobacter cloacae (1999)
    Springer
    Applied microbiology and biotechnology 52 (1999), S. 321-326 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Enterobacter cloacae NRRL B-23289 was isolated from local decaying wood/corn soil samples while screening for microorganisms for conversion of l-arabinose to fuel ethanol. The major product of fermentation by the bacterium was meso-2,3-butanediol (2,3-BD). In a typical fermentation, a BD yield of 0.4 g/g arabinose was obtained with a corresponding productivity of 0.63 g/l per hour at an initial arabinose concentration of 50 g/l. The effects of initial arabinose concentration, temperature, pH, agitation, various monosaccharides, and multiple sugar mixtures on 2,3-BD production were investigated. BD productivity, yield, and byproduct formation were influenced significantly within these parameters. The bacterium utilized sugars from acid plus enzyme saccharified corn fiber and produced BD (0.35 g/g available sugars). It also produced BD from dilute acid pretreated corn fiber by simultaneous saccharification and fermentation (0.34 g/g theoretical sugars).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002530051526
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  • 19
    Electronic Resource
    Electronic Resource
    Observations on the phloem in three species ofMimosa (1968)
    Springer
    Cellular and molecular life sciences 24 (1968), S. 287-288 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Anatomische Untersuchungen am Phloem vonMimosa ergaben eine histologische Übereinstimmung der engen Siebröhren des Aussenphloems mit den Siebröhren des Innenphloems. In den engen Siebröhren bleibt der Zellkern erhalten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02152822
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  • 20
    Electronic Resource
    Electronic Resource
    Solitons of nonlinear scalar electrodynamics in general relativity (1997)
    Springer
    International journal of theoretical physics 36 (1997), S. 1475-1494 
    Details
    ISSN: 1572-9575
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Solitons with spherical and/or cylindrical symmetry in the interacting system of scalar, electromagnetic, and gravitational fields have been obtained. As a particular case it is shown that the equations of motion admit a special kind of solution with a sharp boundary, known as droplets. For these solutions, the physical fields vanish and the space-time is flat outside of the critical sphere or cylinder. Therefore, the mass and the electric charge of these configurations are zero.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02435941
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