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  • 1
    Electronic Resource
    Electronic Resource
    Identification of expression changes of prognostic and therapeutic value in metastasizing medulloblastoma (2001)
    [s.l.] : Nature Publishing Group
    Nature genetics 27 (2001), S. 89-89 
    Details
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Medulloblastoma is a highly malignant cerebellar tumor of children and, less frequently, of adults, with a tendency to early recurrence and dissemination. Despite recent advances in patient survival, the quality of life for survivors is poor due to neurocognitive, neuroendocrine, and hearing ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/87316
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  • 2
    Electronic Resource
    Electronic Resource
    Periesophageal mediastinal fibromatosis (2000)
    Springer
    Abdominal imaging 25 (2000), S. 235-238 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Esophageal stenosis—Mediastinal fibromatosis—Fibrous tissue—Mediastinal enlargement—CT of the mediastinum.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report two cases of aggressive fibromatosis of the mediastinum with esophageal involvement in adults. CT showed the posterior mediastinal mass involving the esophagus. In both cases, surgical resection was not feasible. Histopathologic examination showed a fibrous tissue. The patients died two years later.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002610000023
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  • 3
    Electronic Resource
    Electronic Resource
    Serotonergic Agonists Inhibit Calcium-Activated Potassium and Voltage-Dependent Sodium Currents in Rat Taste Receptor Cells (2000)
    Springer
    The journal of membrane biology 173 (2000), S. 127-138 
    Details
    ISSN: 1432-1424
    Keywords: Key words: Gustation — Signal transduction — 8OH-DPAT — TFMPP — Piperazine — 5HT1A receptor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract. Recently we reported that rat taste receptor cells respond to the neurotransmitter serotonin with an inhibition of a calcium-activated potassium current [17]. In the present study, this observation is confirmed and extended by studying the effects of an array of serotonergic agonists on membrane properties, calcium-activated potassium current, and voltage-dependent sodium current in taste receptor cells using the patch-clamp recording technique in the whole-cell configuration. Serotonergic inhibition of calcium-activated potassium current was mimicked by the agonists N-(3-trifluoromethylphenyl)piperazine and by (±)-2-dipropylamino-8-hydroxy-1,2,3,4-tetrahydronaphthalene. Both produced reversible inhibition of K Ca as well as significantly increasing the input resistance of the cell. The agonists 1-(1-naphthyl)piperazine and buspirone (both serotonin receptor 1A agonists) were similarly effective in reducing K Ca . Outward current was unaffected by application of phenylbiguanide, a serotonin receptor 3 agonist, though current was affected by subsequent application of (±)-2-dipropylamino-8-hydroxy-1,2,3,4-tetrahydronaphthalene. Two agonists—N-(3-trifluoromethylphenyl)piperazine and (±)-2-dipropylamino-8-hydroxy-1,2,3,4-tetrahydronaphthalene—were also tested on voltage-dependent sodium currents; both were effective and reversible in reducing its magnitude at a variety of applied potentials. These data are consistent with the notion that serotonin effects in rat taste receptor cells are mediated by serotonin 1A receptors, though other receptor subtypes may be additionally expressed. Serotonin may affect the taste cell electrical properties during active stimulation in a paracrine fashion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002320001014
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  • 4
    Electronic Resource
    Electronic Resource
    Involvement of soluble organic matter in increased plant growth in solarized soils (2000)
    Springer
    Biology and fertility of soils 32 (2000), S. 28-34 
    Details
    ISSN: 1432-0789
    Keywords: Key words Humic substances ; Fulvic acid ; Solarization ; Growth response ; Fluorescent pseudomonads
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract  Although soil solarization is used to control soil-borne pests, it also results in increased growth response (IGR) of plants, beyond the effect of pest control. IGR is attributed to various abiotic factors (e.g. increased mineral nutrient concentrations) and biotic factors. In this work, we studied the role played by dissolved organic matter (DOM) in soil extracts in the IGR. DOM concentrations were about twice as high in solarized soil than in untreated soil. In two out of three soils, solarization appeared to increase amino acid synthesis, indicating that it had a favorable effect on microbial activity. Elemental composition, carbohydrate levels, E4 : E6 ratios and FTIR spectra did not differentiate between DOM extracted from solarized soils and DOM extracted from untreated soils. Growth of corn plants increased with increasing concentrations of DOM. Addition to the soil of DOM extracted from leonardite increased populations of fluorescent pseudomonads, known as beneficial bacteria, and reduced fungal populations. We conclude that the increase in DOM concentration following soil solarization is a potentially positive plant-growth-enhancement factor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003740000209
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  • 5
    Electronic Resource
    Electronic Resource
    Solid-State Formation of Carbon and Boron Nitride Nanotubes (2000)
    s.l. ; Stafa-Zurich, Switzerland
    Journal of metastable and nanocrystalline materials Vol. 8 (May 2000), p. 63-67 
    Details
    ISSN: 1422-6375
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/43/transtech_doi~10.4028%252Fwww.scientific.net%252FJMNM.8.63.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    Studies of the Electrochemical Properties of Nanosize Co〈sub〉3〈/sub〉O〈sub〉4〈/sub〉 Oxide as Anode Material for Lithium-Ion Batteries (2003)
    s.l. ; Stafa-Zurich, Switzerland
    Journal of metastable and nanocrystalline materials Vol. 15-16 (Apr. 2003), p. 625-628 
    Details
    ISSN: 1422-6375
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/43/transtech_doi~10.4028%252Fwww.scientific.net%252FJMNM.15-16.625.pdf
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  • 7
    Electronic Resource
    Electronic Resource
    Solid-State Formation of Carbon and Boron Nitride Nanotubes (2000)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 343-346 (May 2000), p. 63-67 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/05/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.343-346.63.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    Depletion interactions in suspensions of spheres and rod–polymers (2002)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 117 (2002), S. 1351-1362 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Liquid-state integral equation methods are employed to study the thermodynamic and structural properties of ideal and repelling rigid rods mixed with hard spheres in the limits when one of the species is dilute. The role of rod aspect ratio and sphere/rod size asymmetry is explored over a wide range of system parameters encompassing the colloid, nanoparticle, and crossover regimes. Novel predictions are found for the polymer (sphere) mediated depletion potentials and second virial coefficients of particles (rods) in dense polymer (sphere) suspensions. The adequacy of the closure approximations employed is tested by comparison with available numerical calculations and more rigorous theories in special limits. The liquid-state theory appears to be accurate for all properties in the nanoparticle regime and for the insertion chemical potential of needles and spherocylinders. However, it significantly underestimates depletion attractions effects in the colloidal regime of short rods and large spheres due to nonlocal entropic repulsion effects between polymers and particles not captured by the classic Percus–Yevick approximation. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1485071
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  • 9
    Electronic Resource
    Electronic Resource
    Streamlining project management through online solutions (2004)
    Bradford : Emerald
    The @journal of business strategy 25 (2004), S. 45-48 
    Details
    ISSN: 0275-6668
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Economics
    Notes: The ultimate goal of streamlining solutions for project management is to optimize the performance of the team. Automating business processes and integrating customized business solutions can not only increase productivity but also profitability. However, very few project- or service-oriented organizations efficiently manage their processes. The authors describe an easily replicable online process that resulted in improved management and efficiency for one company.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/02756660410516010
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  • 10
    Electronic Resource
    Electronic Resource
    Optimization of the Supercritical Fluid Extraction of Natural Vitamin E from Wheat Germ Using Response Surface Methodology (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 67 (2002), 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: : Natural vitamin E was extracted by supercritical fluid extraction of carbon dioxide (SFE-CO2) from wheat germ. Several SFE-CO2 parameters, such as extracting pressure, extracting temperature, and flow rate of carbon dioxide were examined as the independent variables of central composite rotate design (CCRD). Through the response surface methodology (RSM), the optimal processing conditions were determined and the quadratic response surfaces were drawn from the mathematical models. The results demonstrated that the extracting pressure, temperature, pressure × temperature interaction, and flow rate of CO2 significantly affected the yield of the natural Vitamin E's extraction, while two interactions containing the flow rate of CO2 had no significant effect on the yield of natural vitamin E. The optimal processing conditions of the extraction of natural vitamin E in wheat germ by SFE-CO2 were: extracting pressure 5000 PSI, extracting temperature 316 K, and flow rate of carbon dioxide 1.7 ml/min. Optimum value predicted by RSM for the concentration of natural vitamin E was 2307 mg/100g. Close agreement between experimental and predicted values was obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2002.tb11391.x
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