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  • 1
    Electronic Resource
    Electronic Resource
    Proportionate progress: A notion of fairness in resource allocation (1996)
    Springer
    Algorithmica 15 (1996), S. 600-625 
    Details
    ISSN: 1432-0541
    Keywords: Euclid's algorithm ; Fairness ; Network flow ; Periodic scheduling ; Resource allocation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics
    Notes: Abstract Given a set ofn tasks andm resources, where each taskx has a rational weightx.w=x.e/x.p,0〈x.w〈1, aperiodic schedule is one that allocates a resource to a taskx for exactlyx.e time units in each interval [x.p·k, x.p·(k+1)) for allk∈N. We define a notion of proportionate progress, called P-fairness, and use it to design an efficient algorithm which solves the periodic scheduling problem.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01940883
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  • 2
    Electronic Resource
    Electronic Resource
    Chitosan Clad Manganese Doped Zing Sulphide Nanocrystallitesfor Biolabeling (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 55-57 (Aug. 2008), p. 589-592 
    Details
    ISSN: 1662-8985
    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
    Notes: The synthesis of fluorescent nanocrystals is receiving a lot of attention for potential application in biological labeling as well as phosphors for field emission devices. Zinc sulphide doped with manganese (ZnS:Mn2+) is one of the most efficient electroluminescent phosphor displaying a wide emission band centred around 590 nm resulting from the intra-ionic transition in Mn2+ ions. We report a unique synthesis of zinc sulphide nanoparticles doped with manganese using a biocompatible passivating agent ‘chitosan’, with bright luminescence peaking at 590 nm. This high luminescence efficiency of the synthesized nanocrystals are ideal for quantum dot based bio-labeling applications. Synthesis of the nanoparticles was carried out by precipitation reaction in aqueous media of zinc acetate and sodium sulphide where manganese acetate was added as the dopant. The obtained nanoparticles were around 4 to 6 nm in size and were found to be stable for months of shelf life. The photoluminescence intensity did not degrade when the colloid was heated up to 65 oC for prolonged periods
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/41/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.55-57.589.pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Abnormal serine-glycine metabolism in the brains of schizophrenics
    Amsterdam : Elsevier
    Schizophrenia Research 8 (1993), S. 233-243 
    Details
    ISSN: 0920-9964
    Keywords: Glutamatergic excitotoxicity ; NMDA receptor ; Neurohistopathology ; Serine-glycine
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0920-9964(93)90021-A
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  • 4
    Electronic Resource
    Electronic Resource
    Plasma serine in schizophrenics and controls measured by gas chromatography-mass spectrometry
    Amsterdam : Elsevier
    Psychiatry Research 37 (1991), S. 261-270 
    Details
    ISSN: 0165-1781
    Keywords: Serine ; gas chromatography / mas spectrometry ; schizophrenia
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0165-1781(91)90062-T
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  • 5
    Electronic Resource
    Electronic Resource
    Presynaptic modulation of amino acid release from synaptosomes (1992)
    Springer
    Neurochemical research 17 (1992), S. 125-128 
    Details
    ISSN: 1573-6903
    Keywords: Glutamate ; GABA ; NMDA ; synaptosomes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Using synaptosomes prepared from whole rat brain, the spontaneous, calcium-independent, and calcium-dependent release of glutamate and GABA was assessed. Time intervals of 1–30 seconds were studied. Spontaneous release of glutamate (but not GABA) was elevated by 10 μM NMDA or AMPA by thirty seconds. This stimulation was partially calcium-dependent. Calcium-dependent release induced by 30 mM KCl was biphasic, confirming previous findings. This release was stimulated at all time periods by the presence of 10 μM NMDA or AMPA in an antagonist-sensitive manner. These data suggest that glutamate and GABA are released from vesicular stores in rat synaptosomes and that some of this release is modulated by presynaptic glutamate receptors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00966789
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  • 6
    Electronic Resource
    Electronic Resource
    On the competitiveness of on-line real-time task scheduling (1992)
    Springer
    Real-time systems 4 (1992), S. 125-144 
    Details
    ISSN: 1573-1383
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract With respect to on-line scheduling algorithms that must direct the service of sporadic task requests we quantify the benefit of clairvoyancy, i.e., the power of possessing knowledge of various task parameters of future events. Specifically, we consider the problem of preemptively sheduling sporadic task requests in both uni- and multi-processor environments. If a task request is successfuly scheduled to completion, a value equal to the task's execution time is obtained; otherwise no value is obtained. We prove that no on-line scheduling algorithm can guarantee a cumulative value greater than 1/4th the value obtainable by a clairvoyant scheduler; i.e., we prove a 1/4th upper bound on the competitive factor of on-line real-time schedulers. We present an online uniprocessor scheduling algorithm TD 1 that actually has a competitive factor of 1/4; this bound is thus shown to be tight. We further consider the effect of restricting the amount of overloading permitted (the loading factor), and quantify the relationship between the loading factor and the upper bound on the competitive factor. Other results of a similar nature deal with the effect of value densities (measuring the importance of type of a task). Generalizations to dual-processor on-line scheduling are also considered. For the dual-processor case, we prove an upper bound of 1/2 on the competitive factor. This bound is shown to be tight in the special case when all the tasks have the same density and zero laxity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00365406
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  • 7
    Electronic Resource
    Electronic Resource
    Synthesis, Characterization and Thermal Decomposition of M1[M2(C2O4)2]xH2O (x=5 for M1=Co and x=4 for M1=Cd; M2=Ni) (2000)
    Springer
    Journal of thermal analysis and calorimetry 59 (2000), S. 791-797 
    Details
    ISSN: 1572-8943
    Keywords: IR ; oxalato complexes ; thermal decomposition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Cobalt bis(oxalato)nickelate pentahydrate, Co[Ni(C2O4)2]5H2O and cadmium bis(oxalato)nickelate tetrahydrate, Cd[Ni(C2O4)2]4H2O have been synthesized and characterized by elemental analysis, reflectance and IR spectral studies. Thermal decomposition studies (TG, DTG and DTA ) in air showed that both the compound of cobalt and cadmium produced the oxide, MNiOx (x=3 for M=Co; x=2 for M=Cd ) at 325 and 360°C respectively. DSC studies in nitrogen attributed only the mixture of both the metal at the end.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010153720786
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  • 8
    Electronic Resource
    Electronic Resource
    Polymerization of methylmethacrylate initiated by charge-transfer complex (1978)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 16 (1978), S. 167-171 
    Details
    ISSN: 0360-6384
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1978.130160403
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  • 9
    Electronic Resource
    Electronic Resource
    Reactivity ratios of behenyl acrylate and vinyl acetate for copolymerization (1992)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 30 (1992), S. 2273-2276 
    Details
    ISSN: 0887-624X
    Keywords: pour point depressants ; flow improvers ; reactivity ratios ; behenyl acrylate ; vinyl acetate ; Q, e values ; waxy crude oil ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1992.080301024
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  • 10
    Electronic Resource
    Electronic Resource
    Kinetic studies on the n-alkyl acrylate polymerization (1992)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 30 (1992), S. 2531-2549 
    Details
    ISSN: 0887-624X
    Keywords: pour point depressants ; alkyl acrylates ; n-butyl acrylate ; n-octadecyl acrylate ; polymerization ; kinetic orders ; activation energy ; autoacceleration ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Kinetic studies on the polymerization of n-butyl acrylate and n-octadecyl acrylate in toluene at 70°C with benzoyl peroxide as initiator are reported. High monomer orders of 1.55 and 1.75 were obtained for n-butyl and n-octadecyl acrylates, respectively. Though the initiator order in butyl acrylate polymerization was 0.5, the octadecyl acrylate polymerization showed less than square root initiator order. The activation energy for the polymerization of both the acrylates was determined. Autoacceleration was found even at low conversions. The autoacceleration was influenced by both monomer and initiator concentration. Molecular weight data was presented in support of the gel effect. © 1992 John Wiley & Sons, Inc.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1992.080301207
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