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  • 2005-2009
  • 2000-2004  (8)
  • 1965-1969
  • 2001  (8)
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Material
Years
  • 2005-2009
  • 2000-2004  (8)
  • 1965-1969
Year
  • 1
    Electronic Resource
    Electronic Resource
    Repairing Damaged Wildlands: A Process-Oriented, Landscape-Scale Approach (2001)
    Boston, MA, USA : Blackwell Science Inc
    Restoration ecology 9 (2001), S. 0 
    Details
    ISSN: 1526-100X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1526-100x.2001.009002249.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Room-temperature continuous photopumped laser operation of coupled InP quantum dot and InGaP quantum well InP–InGaP–In(AlGa)P–InAlP heterostructures (2001)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 79 (2001), S. 1956-1958 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Data are presented demonstrating continuous 300 K photopumped InP quantum dot (QD) laser operation (656–679 nm) realized by modifying and coupling, via tunneling, an auxiliary InGaP quantum well (QW) to the QDs of an InP–In(AlGa)P–InAlP heterostructure grown by metalorganic chemical vapor deposition. The In0.49Ga0.51P QW coupled to the InP QDs by a thin ((approximately-less-than)20 Å) In0.5Al0.3Ga0.2P barrier overcomes the limitations of carrier collection, lateral transport, and thermalization in the QDs, thus yielding a different form of QD laser. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1405153
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Coupled strained-layer InGaAs quantum-well improvement of an InAs quantum dot AlGaAs–GaAs–InGaAs–InAs heterostructure laser (2001)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 79 (2001), S. 4500-4502 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Data are presented showing that, besides the improvement in carrier collection, it is advantageous to locate strain-matching auxiliary InGaAs layers [quantum wells (QWs)] within tunneling distance of a single-quantum-dot (QD) layer of an AlGaAs–GaAs–InGaAs–InAs QD heterostructure laser to realize also smaller size QDs of greater density and uniformity. The QD density is changed from 2×1010/cm2 for a 50 Å GaAs coupling barrier (QW to QD) to 3×1010/cm2 for a 5 Å barrier. The improved QD density and uniformity, as well as improved carrier collection, make possible room-temperature continuous-wave (cw) QD+QW laser operation (a single InAs QD layer) at reasonable diode length (∼1 mm), current density 586 A/cm2, and wavelength 1057 nm. The cw 300 K coupled InAs QD and InGaAs QW AlGaAs–GaAs–InGaA–InAs heterostructure lasers are grown by metalorganic chemical vapor deposition. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1430025
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Coupled InP quantum-dot InGaP quantum well InP–InGaP–In(AlGa)P–InAlP heterostructure diode laser operation (2001)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 79 (2001), S. 3215-3217 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Data are presented showing that a p–n InP–In0.5Ga0.5P–In0.5(Al0.3Ga0.2)P–In0.5Al0.5P quantum-dot (QD) heterostructure diode, with an auxiliary ∼20 Å InGaP quantum well (QW) coupled via an In(AlGa)P barrier (∼20 Å) to the single layer of QDs to aid carrier collection, has a steeper current–voltage characteristic than the case of a similar diode with no auxiliary QW. The p–n InP+InGaP QD+QW diode is capable of 300 K visible-spectrum QD laser operation, while the single-layer InP QD diode (single QD layer) saturates at low current ((approximately-less-than)1 mA) and does not exhibit stimulated emission. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1416158
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Size distribution of aquatic invertebrates in two prairie wetlands, with and without fish, with implications for community production (2001)
    Oxford UK : Blackwell Science Ltd
    Freshwater biology 46 (2001), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: 1. We compared the size distribution of aquatic invertebrates in two prairie wetlands, one supporting a population of fathead minnows and the other fishless. Both wetlands were sampled in three depth zones on three dates, allowing assessment of temporal and spatial variation.2. We determined biomass of aquatic invertebrates in 17 log2 size classes, and used these data to develop normalized size spectra. We also coupled size distributions with an allometric model to estimate relative production at the community level.3. The composition of the invertebrate communities differed greatly between sites, and invertebrate biomass was higher in nearly all size classes in the fishless wetland. Intercepts of normalized size spectra were significantly different between wetlands, but slopes generally were not, indicating differences in standing-stock biomass but similar size structures between the two invertebrate communities. Higher standing-stock biomass in the fishless wetland resulted in higher relative production per unit area, but similar size distributions resulted in similar mass-specific production (P/B) between wetlands.4. Our results indicate that invertebrate communities in prairie wetlands may have relatively consistent size structures in spite of large differences in community composition and standing-stock biomass. We hypothesize that the observed differences are because of predation by the minnow population and/or differences in the macrophyte communities between the two sites. However, the relative importance of macrophytes and fish predation in structuring invertebrate communities in prairie wetlands is poorly known.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2427.2001.00759.x
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Consultant or entrepreneur? Demystifying the "war for talent" (2001)
    Bingley : Emerald
    Career development international 6 (2001), S. 48-56 
    Details
    ISSN: 1362-0436
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Economics
    Notes: The "War for Talent" has made the cover of Fortune Magazine as well as being a top agenda item for the leadership of professional service firms - from McKinsey to the three Bs (Bain, Boston Consulting Group, and Booz Allen) to the big five accounting firms. A boom economy has led to a demand for talent that surpasses the supply, or at least the supply from Ivy League and top tier B-schools. As consulting firms battle it out on B-school campuses and scurry to other sources of talent such as engineering schools and PhD programs, one cannot help but ask, "Why are people choosing entrepreneurial positions over a consulting career?" The answers may be more in the failings of consulting firms to define a compelling industry-wide value proposition than in a new venture's overarching attractiveness as a moderate risk, high reward opportunity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/13620430110381034
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    The UDP-N-acetylglucosamine 2-epimerase/N-acetylmannosamine kinase gene is mutated in recessive hereditary inclusion body myopathy (2001)
    [s.l.] : Nature Publishing Group
    Nature genetics 29 (2001), S. 83-87 
    Details
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Hereditary inclusion body myopathy (HIBM; OMIM 600737) is a unique group of neuromuscular disorders characterized by adult onset, slowly progressive distal and proximal weakness and a typical muscle pathology including rimmed vacuoles and filamentous inclusions. The autosomal recessive form ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/ng718
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    ED photo resist technology becomes a manufacturing process (2001)
    Bradford : Emerald
    Circuit world 27 (2001), S. 6-15 
    Details
    ISSN: 0305-6120
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: The ever-increasing miniaturization and integration of additional functions in the electronics industry - in particular in the next generation telecomm technologies - needs a paradigm shift in manufacturing technologies in order to achieve the results along the roadmaps of the industry. Handling of thin substrates, doing finest line circuitry, working on non-flat surfaces and having to protect metallized holes during etching processes, are asking for conformal resist coatings. Electrophoretically deposited positive working photo resists encompass these requirements. The principles of electrophoretic photo resists, the necessary equipment, the cooperation between customer, the supplier of process chemistry and the supplier of the equipment to start such a complex project, and start-up results of the new major production line for ED-resist in Europe are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/03056120110385456
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    Paper (German National Licenses)
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