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  • 1
    Electronic Resource
    Electronic Resource
    Structure of the hormone binding domain of human .beta.1 thyroid hormone nuclear receptor: Is it an .alpha./.beta. barrel? (1993)
    s.l. : American Chemical Society
    Biochemistry 32 (1993), S. 7460-7465 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00080a017
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  • 2
    Electronic Resource
    Electronic Resource
    Upconversion luminescence of Er-implanted GaN films by focused-ion-beam direct write (1999)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 75 (1999), S. 1833-1835 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Upconversion luminescence has been obtained from Er-implanted GaN films by focused-ion-beam (FIB) direct write. FIB implantation was performed on GaN films grown by molecular beam epitaxy, hydride vapor phase epitaxy, and metalorganic chemical vapor deposition. After implantation, the GaN samples were annealed at 1100 °C for 1 h in various ambients (Ar, N2, and O2). Strong green upconversion was observed at 523 and 546 nm under red (840 nm) and infrared (1.0 μm) excitation. Upconversion intensity was measured for Er doses ranging from 4.3×1012 to 2.4×1016 atoms/cm2. Maximum upconversion intensity at 546 nm was observed at a dose of 1–2×1015 atoms/cm2, which corresponds to an atomic percentage of 0.3%–0.6%. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.124843
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  • 3
    Electronic Resource
    Electronic Resource
    Voltage-controlled yellow or orange emission from GaN codoped with Er and Eu (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 76 (2000), S. 1525-1527 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Orange and yellow-colored light emission has been achieved at room temperature in the same elecroluminescent device (ELD) made on GaN thin films codoped with Er and Eu. The GaN film was grown by molecular-beam epitaxy on Si (111) substrates using solid sources for Ga, Er and Eu and a plasma source for N2. Simple Schottky devices were fabricated on the GaN films using indium–tin oxide (ITO) transparent electrodes. ELD spectra show that the yellow and orange colors result from the combination of green emission from Er (537, 558 nm) and red emission from Eu (621 nm). A color change was observed with applied bias, producing yellow at higher bias (−100 V) and orange at lower bias (−70 V). We have fabricated both relatively small (∼250 μm) and large (1.45 mm) ELDs. Parameters for the chromaticity diagram were calculated to be x=0.382, y=0.605 for the yellow emission and x=0.467, y=0.523 for the orange emission. This work shows the possibility of achieving any intermediate color in the spectrum from green to red by adjusting the concentration of Er and Eu in GaN. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.126084
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  • 4
    Electronic Resource
    Electronic Resource
    A synthesis of uridine(diphosphate)diphospho-N-acetylmuramic acid and its sue as an acceptor of L-alamine-14C (1968)
    s.l. : American Chemical Society
    Biochemistry 7 (1968), S. 1393-1399 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00844a022
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  • 5
    Electronic Resource
    Electronic Resource
    Sensitivity and Resistance of Yeast Strains to Actidione and Actidione Derivatives (1965)
    [s.l.] : Nature Publishing Group
    Nature 206 (1965), S. 90-92 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Table l. BIOLOGICAL ACTIVITY OF ACTIDIONE AND 3 OF ITS DERIVATIVES Strain* (6H〉 Degree of resistance in p.p.m. Genotype Anhydro- Dehydro- Dihydro-Actidione actidione actidione actidione + Of 0 10 10 40 + 0 0 10 10 22G14 AC* i 1 1 100 100 1450-16C V do* 6 6 600 600 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/206090b0
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  • 6
    Electronic Resource
    Electronic Resource
    Book review:Eighth Symposium on Thermophysical Properties (1983)
    Springer
    Journal of statistical physics 32 (1983), S. 203-204 
    Details
    ISSN: 1572-9613
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01009429
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  • 7
    Electronic Resource
    Electronic Resource
    Mapping of the MouseLy-6, Xp-14, andGdc-1 loci to chromosome 15 (1987)
    Springer
    Immunogenetics 25 (1987), S. 21-27 
    Details
    ISSN: 1432-1211
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract TheLy-6 locus is now regarded as a gene complex consisting of at least five closely linked loci (Ly-6A-Ly-6E) whose polymorphic products are identified by monoclonal antibodies and distinguished by different tissue distributions.Ly-6 has been assigned by other investigators to chromosome (Chr) 9 (linked toThy-1 or to Chr 2. We report that theLy-6 gene complex, together with theXp-14 andGdc -1 loci, is situated on Chr 15 linked toGpt1. These new linkage data are derived from four sources: (1) three separate crosses that failed to demonstrate linkage ofLy-6 to eitherThy-4 on Chr 9 or to any of five genes present on Chr 2; (2) the NXSM recombinant inbred strains, which suggested the linkage ofLy-6 andXp-14 toGpt-1 on Chr 15; (3) severalGpt-1 andGdc-1 congenic strains that confirmed the assignment ofLy-6 andXp-14 to Chr 15; and (4) backcrosses that further confirmed the linkage ofLy-6, Gpt-1, Gdc-4, andXp-14, the probable gene order beingGpt-11/Ly-6 Xp-14-Gdc-1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00768829
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  • 8
    Electronic Resource
    Electronic Resource
    Study of pyrolysis and incineration of disposable plastics using combined TG/FT-IR technique (1997)
    Springer
    Journal of thermal analysis and calorimetry 49 (1997), S. 361-366 
    Details
    ISSN: 1572-8943
    Keywords: disposable ; evolved gases ; FT-IR spectroscopy ; polymers ; TG
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Thermogravimetric analysis (TG) provides information regarding mass changes in the sample resulting from heat treatment under controlled environment. However, it does not provide any chemical information regarding the gases evolved during the thermal degradation. Using FT-IR spectrometry in combination with TG, it is often possible to identify the evolved gases, and also monitor their evolution profiles during thermal degradation. In this study, we present the TG/FT-IR combined analysis of incineration and pyrolysis of some common plastics such as high density polyethylene (HDPE), polyvinyl chloride (PVC), polyethylene terephthalate (PET), and polystyrene (PS). This study demonstrates the utility of such combined analysis in providing useful information regarding the use of thermal treatment for recycling or incineration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01987458
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  • 9
    Electronic Resource
    Electronic Resource
    A cytoplasmic factor in the resistance of yeast cells to actidione and its response to uv-irradiation (1965)
    Springer
    Genetica 36 (1965), S. 267-276 
    Details
    ISSN: 1573-6857
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A relatively high proportion of the cells of a particular strain ofSaccharomyces cerevisiae form slow-growing colonies when plated on .5p.p.m. actidione-agar. The production of this class of resistant mutant, which is not observed in unrelated strains, depends on the presence of a nuclear gene, designatedR. The slow-growing colony is comprised of both sensitive and resistant cells,i.e. resistant cells give rise to a varying proportion of daughter cells that are revertants to sensitivity during colony development. Resistance is generally stabilized and its transmission assured following a second exposure of resistant cells to the drug. Resistance of the stable mutant is inherited only by a small proportion of ascospores in crosses to sensitive strains but shows some features of mendelian transmission in crosses to a different resistant strain. The UV-induction of the slow-growing mutant shows a different pattern from that of gene mutation, although both categories have a nucleic acid action spectrum. Two alternative hypotheses are presented to explain the results, a) in which control of resistance is vested in a mutating cytoplasmic genetic unit and b) where resistance is dependent on the functional, state of a nuclear gene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01557159
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  • 10
    Electronic Resource
    Electronic Resource
    Sequential 11α-hydroxylation and 1-dehydrogenation of 16α-hydroxycortexolone (1971)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 13 (1971), S. 503-515 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Two-step microbial transformation of 16α-hydroxycortexolone to its 1-dehydro-11α-hydroxy derivative, without isolating an intermediate, was achieved with an overall yield of 72% of product at a steroid substrate concentration of 3 mg/ml. The process included formation of the cycloborate complex of the substrate, hydroxylation of the borate complex with a suspension of Aspergillus ochraceus mycelium in phosphate buffer, and dehydrogenation of the 11α-hydroxylated intermediate with acetone-dried Arthrobacter simplex cells. The desired product was then obtained by breaking the resultant borate complex through acidification.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260130405
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