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  • 2020-2022  (56)
  • 2005-2009  (116)
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  • 1
    Electronic Resource
    Electronic Resource
    TASTE PERCEPTIONS AND DIETARY INTAKES OF SMOKELESS TOBACCO USERS AND NONTOBACCO USERS (2005)
    Oxford, UK and Malden, USA : Blackwell Science Inc
    Journal of sensory studies 20 (2005), S. 0 
    Details
    ISSN: 1745-459X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Smokeless tobacco and nontobacco users differed for certain concentrations of perceived intensities of the four solutions – significantly for sweet (P ≤ 0.008) and salty (P = 0.001). Sensitivity to salty (P = 0.02) and bitter (P = 0.11) solutions decreased with increasing hours of exposure to smokeless tobacco. Smokeless tobacco and nontobacco users rated fruits and vegetables for preference and the four taste senses differently, with a decreasing trend for sweet tastes in smokeless tobacco users with increasing hours of exposure to smokeless tobacco. Smokeless tobacco users consumed more total fat (P = 0.06) and fat per 1000 kcal (P = 0.13) than nontobacco users. Higher intakes of total fat (P = 0.005), total fat per 1000 kcal (P = 0.18), total sodium (P = 0.03) and total Vitamin E (P = 0.06) were found with increasing hours of exposure to smokeless tobacco. Although fruit and vegetable intakes did not differ between smokeless tobacco and nontobacco users, both groups should increase their consumption of fruits and vegetables.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-459X.2005.00022.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Markoff chain modelling of NDI techniques (2005)
    PO Box 1354, 9600 Garsington Road, Oxford OX4 2XG, UK. : Blackwell Science Ltd
    Fatigue & fracture of engineering materials & structures 28 (2005), S. 0 
    Details
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A procedure for non-destructive inspection by taking into account the effects of stochastic fatigue crack growth is presented. For this purpose a Markoff chain model is used to update the crack statistics, allowing an efficient computational implementation and a clear account of the involved concepts. In this context, perfect and imperfect removal of cracks, respectively, are considered, which represent idealizations defining bounds for actual situations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.2004.00853.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Use of carbon-11 in Populus shows that exogenous jasmonic acid increases biosynthesis of isoprene from recently fixed carbon (2005)
    Oxford, UK : Blackwell Science Ltd
    Plant, cell & environment 28 (2005), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A new approach for pulse labelling of plants using the short-lived positron emitting radioisotope carbon-11 (half-life: 20.4 min) as 11CO2 is reported together with its application to measuring [11C]isoprene emissions from intact leaves capturing information associated with: (1) rate of emission; (2) the relative contribution of recently fixed carbon to isoprene biosynthesis; and (3) the transit time for tracer movement through the leaf and biochemical pathways associated with isoprene biosynthesis. This approach was applied to study the response of certain Populus species to exogenous treatments of jasmonic acid (JA), a plant hormone implicated in signal transduction linked to defence response against herbivory. Twelve hours after treatment of single intact leaves of aspen (Populus tremuloides) with a 1 m m JA spray, isoprene emissions from those leaves increased 1.5 times the controls from 35.4 ± 2.2 to 53.1 ± 4.8 nmol m−2 s−1. [11C]Isoprene emissions from the same leaves, reflecting the isoprene that was derived from recently fixed carbon, increased much more, to 2.2 times the controls. This increase coincided with a change in emitted [11C]isoprene from 0.31 to 0.68% of 11C fixed in the leaf tissue, while the tracer transit time remained constant at 12.5 min. These results suggest that JA had no effect on enzyme kinetics involved in isoprene biosynthesis, but did impact the source of recent carbon feeding that pathway. Studies with poplar (Populus nigra clone NC 5271) showed similar trends in systemic emissions (from an untreated leaf on the same plant).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3040.2004.01303.x
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  • 4
    Electronic Resource
    Electronic Resource
    Constitutive expression of yeast phospholipid biosynthetic genes by variants of Ino2 activator defective for interaction with Opi1 repressor (2005)
    Oxford, UK : Blackwell Science Ltd
    Molecular microbiology 56 (2005), S. 0 
    Details
    ISSN: 1365-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Regulated expression of structural genes involved in yeast phospholipid biosynthesis is mediated by inositol/choline-responsive element (ICRE) upstream motifs, bound by the heterodimeric activator complex Ino2 + Ino4. Gene repression occurs in the presence of sufficient inositol and choline, requiring an intact Opi1 repressor which binds to Ino2. For a better understanding of interactions among regulators, we mapped an 18 aa repressor interaction domain (RID, aa 118–135) within Ino2 necessary and sufficient for binding by Opi1. By alanine scanning mutagenesis of the entire RID we were able to identify nine residues critical for Opi1-dependent repression of Ino2 function. Consequently, the corresponding dominant Ino2 variants conferred constitutive expression of an ICRE-dependent reporter gene and were no longer inhibited even by overproduction of Opi1. Interestingly, Ino2 RID partially overlaps with transcriptional activation domain TAD2. As certain mutations exclusively affect repression while others affect both repression and activation, both functions of Ino2 can be functionally uncoupled. Correspondingly, we mapped the RID–binding activator interaction domain (AID, aa 321–380) at the C-terminus of Opi1 and introduced missense mutations at selected positions. An Opi1 variant simultaneously mutated at three highly conserved positions showed complete loss of repressor function, confirming RID–AID interaction as the crucial step of regulated expression of ICRE-dependent genes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2958.2004.04499.x
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  • 5
    Electronic Resource
    Electronic Resource
    Finite-Element-Simulation of Interfacial Crack Propagation: Cross-Check of Simulation Results with the Essential Work of Interfacial Fracture Method (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 312 (June 2006), p. 9-14 
    Details
    ISSN: 1013-9826
    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: An advanced finite-element model for the complete failure process of a double notched specimen with crack tip blunting caused by yielding and subsequent crack propagation is used for the simulation of realistic specimens. Cracks in a homogeneous material and bimaterial cracks are studied. The calculated load-displacement curves show generally the shape known from experiments and theoretical considerations. The simulation allows determination of a working rangeof set up parameters like geometry, test speed or clamping conditions.The numerical model simulates crack propagation on the basis of a criterion which is similar to the energy release rate. The essential work of interfacial fracture method provides a method to determine the fracture toughness from load-displacement curves. This method is well suited to check the numerical simulation because both use an energy based failure criterion. If applied to simulated load-displacement curves the resulting essential work of interfacial fracture shoulddirectly match the fracture criterion used as input for the simulation.In fact, the data reduction of the simulated curves results in values for the fracture toughness that almost perfectly match the input values of the simulation. This agreement is a strong argument for the consistency of the simulation and the data reduction scheme
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/51/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.312.9.pdf
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  • 6
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    Description of problem areas, review of objectives and determination of cross-cutting drivers : technical report of work package 1 (2007)
    Wuppertal : Wuppertal Institute for Climate, Environment and Energy | Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publication Date: 2016-08-23
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
    Type: report , doc-type:report
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  • 7
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    Mapping environmental performance of international raw material production flows : a comparative case study for the copper industry of Chile and Germany (2008)
    Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publication Date: 2018-11-21
    Description: World primary copper production is expected to increase due to growing demand. Reflecting the geographical divergence of copper deposits and demanding industries, copper is produced by various production paths, differing in regional and technological aspects and related environmental pressures. For the mitigation of environmental pressures related to global material flows and a more sustainable resource management, policy makers, producers and buyers require information on regional resource efficiencies and effects of the key processes within the global production chain. This study quantifies material flows of refined copper production and environmental pressures along the pyro‐ and hydrometallurgical paths for Chile and Germany. Inventories for involved unit processes are distinguished by region and most commonly applied technologies, including electric power supply. Different production paths are compared by environmental pressure indicators (primary energy requirements, total material requirements, water consumption, GHG emissions, solid waste disposal, sulphur dioxide and arsenic emissions). Alternative options for improvement of technologies and supply patterns in Chile and Germany are compared.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
    Type: article , doc-type:article
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  • 8
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    Sensitivity of Lake Sturgeon population dynamics and genetics to demographic parameters [Powerpoint Slide] (2021)
    In:  http://aquaticcommons.org/id/eprint/14801 | 403 | 2014-02-27 20:14:26 | 14801 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-25
    Description: Lake sturgeon Acipenser fulvescens restoration is a priority throughout the Great Lakes basin, where sturgeon have been reduced to less than 1% of historic levels due to habitat degradation, overharvest, and fragmentation of spawning populations. The population parameters mostimportant to long-term lake sturgeon persistence are unknown.
    Keywords: Ecology ; Fisheries
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
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  • 9
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    Updated statewide abundance estimates for the Florida manatee (2021)
    Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute | St. Petersburg, FL
    In:  http://aquaticcommons.org/id/eprint/26968 | 9413 | 2020-02-21 19:10:47 | 26968 | Florida Fish and Wildlife Conservation Commission
    Details
    Publication Date: 2021-07-24
    Description: Knowing how many manatees live in Florida is critical for conservation and management of this threatened species. Martin and others flew aerial surveys in 2011–2012 and estimated abundance in those years using advanced techniques that incorporated multiple data sources. We flew additional aerial surveys in 2015–2016 to count manatees and again applied advanced statistical techniques to estimate their abundance. We also made several methodological advances over the earlier work, including accounting for how sea state (water surface conditions) and synchronous surfacing behavior affect the availability of manatees to be detected and incorporating all parts of Florida in the area of inference. We estimate that the number of manatees in Florida in 2015–2016 was 8,810 (95% Bayesian credible interval 7,520–10,280), of which 4,810 (3,820–6,010) were on the west coast of Florida and 4,000 (3,240–4,910) were on the east coast. These estimates and associated uncertainty, in addition to being of immediate value to wildlife managers, are essential new data for incorporation into integrated population models and population viability analyses.
    Keywords: Conservation ; Florida ; manatees ; population ; abundance estimate
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 23
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  • 10
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    Brittle-ductile coupling: Role of ductile viscosity on brittle fracturing (2005)
    In:  Geophys. Res. Lett., Wiesbaden, Franz Steiner Verlag GmbH, vol. 32, no. 10, pp. ESE 16-1 to ESE 16-15, pp. L10308, (ISSN: 1340-4202)
    Details
    Publication Date: 2005
    Keywords: Rock mechanics ; Rheology ; Inelastic ; Fracture ; GRL
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    BIBLIOGRAPHY SEISMOLOGY
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