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  • 1
    Series available for loan
    Series available for loan
    Santiago de Chile
    Associated volumes
    Call number: SR 90.1036(36)
    In: Boletín
    Type of Medium: Series available for loan
    Pages: 43 S. + 4 Kt.-Beil.
    Series Statement: Boletin / Instituto de Investigaciones Geológicas, Chile 36
    Language: Spanish
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 2
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1573-2932
    Keywords: spoil recovery ; mine soils ; soil quality ; organic amendments ; soil functions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Effective minesoil recovery requires spoils to be converted to soils of similar quality to those previously existing on that site. The developing minesoil should thus acquire three critical capacities, namely the capacities to a) support plant production, b) degrade organic matter and c) remove contaminants from water. The degree of development of these capacities provides a useful measure of soil quality and thus of the success of a given soil recovery technique. At the Meirama lignite mine in Galicia (northwest Spain), the possibility of using cattle slurry instead of the inorganic fertilizers currently used is being investigated. The results of a number of experiments suggest that cattle slurry is more effective (in terms of the above three critical capacities) than inorganic fertilizer. In slurry-fertilized spoils, rapid increases are observed in vegetation cover, in the relative abundance of self-seeded native plant species, in soil microbial activity and in those physical and chemical properties which affect infiltration and the capacity to remove contaminants from percolating water.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1573-4870
    Keywords: Modelling ; solidification ; dendritic microstructure ; cobalt-alloys
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract In the present work a mathematical model has been developed to explain the microstructure characteristics obtained during the solidification process of dendritic cobalt alloys, under ordinary low cooling rate conditions. The model, taking into account physical aspects such as undercooling, cooling rate, solute diffusion, interfacial energy, and dendrite tip morphology, allowed results to explain the experimental microstructure changes observed when the processing conditions were varied. The mathematical model involved micro and macroscopic phenomena occurring during the solidification process of metallic alloys. The solutions of the governing equations were obtained applying a non-coupled scheme, which enables the possibility to simulate the solidification of complex geometry castings.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0991
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. The nucleotide sequence of a 1620-bp chromosomal fragment from Streptococcus pneumoniae, containing a putative class-II aldolase gene, has been determined. The N-terminal amino acid (aa) sequence of S. pneumoniae class-II aldolase protein allowed us to determine the initiation site for the putative aldolase gene, and a molecular weight of 31,274 Da was predicted for the protein, after removal of the N-terminal methionine. Northern hybridization and primer extension analysis showed a 1100-nucleotide transcript with a transcription start site located 43 or 42 bp upstream of the start codon. Southern hybridization studies indicated that the putative class-II aldolase gene was in the ApaI fragment 6, SmaI fragment 9, and SacII fragment 12 or 13 of the physical map of S. pneumoniae chromosome. Southern hybridization analysis and partial sequencing performed in another eight streptococcus species, belonging to six different phylogenetic groups, suggested that a class-II aldolase gene with a considerable DNA homology to that of the S. pneumoniae, could exist in these streptococcal species.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1612-1112
    Keywords: Reversed phase HPLC ; Diode-array detection ; Diphasic dialysis extraction ; Cow liver ; Clenbuterol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary This paper reports a method employing diphasic dialysis extraction for the rapid confirmation of clenbuterol in cow liver by RPHPLC with diode-array detection. The most suitable means of homogenizing the liver is in barium hydroxide-barium chloride buffer; the optimum extraction solvent istert-butyl methyl ether at an extraction temperature of 37°C; stirring should be applied at 150 r.p.m. for 4h. This extraction method improves clenbuterol recovery values to 98.9%.
    Type of Medium: Electronic Resource
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  • 7
    Publication Date: 2018-12-19
    Description: The aim of this paper is to contribute to the strategic management literature by identifying the possible combinations among three organizational capabilities (market orientation, knowledge processes and customer relationship management). We also analyze the possible interaction among them to give the creation of superior customer value as a result. Our research question is if the customer requires a superior value, how the firm has to combine the extant capabilities to offer them this superior value? We advance that the interaction among the three proposed capabilities constitutes a capability.
    Keywords: M10 ; ddc:330 ; customer value ; capabilities ; market orientation ; knowledge processes ; customer relationship management
    Repository Name: EconStor: OA server of the German National Library of Economics - Leibniz Information Centre for Economics
    Language: Spanish
    Type: doc-type:article
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  • 8
    Publication Date: 2018-07-03
    Description: We review some patterns of Total Factor Productivity (TFP) growth in the Mexican economy during the period 1991-2011 using the KLEMS data set published by INEGI in 2013. The data shows a strong positive correlation between TFP and output growth. As a result, tests were performed in order to determine a possible causality between these two variables, with the results not rejecting the hypothesis of causality running in both directions. Another pattern that also emerges from the data set is that TFP growth in Mexico tends to be fairly concentrated and highly irregular, as just a reduced share of the subsectors in any given time period tends to account for most of the TFP growth, and also because the distribution of their performance is far from being the same across time. These patterns are similar to those found in other data sets of the Mexican economy, as well as in data from the United States and the United Kingdom at different levels of aggregation.
    Keywords: N16 ; O10 ; O40 ; O43 ; O47 ; ddc:330 ; growth accounting ; economic growth ; TFP growth
    Repository Name: EconStor: OA server of the German National Library of Economics - Leibniz Information Centre for Economics
    Language: English
    Type: doc-type:workingPaper
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  • 9
    Publication Date: 2018-07-03
    Description: We construct a panel data at the state level in Mexico for the years 2006, 2008 and 2011 in order to investigate the impact that entry deregulation efforts have on the cost of opening new businesses in Mexico, where this cost is taken from the Doing Business in Mexico report of the World Bank. Using a model that the controls for the financial strength of the states, market profitability, regional fixed effects, and considering endogenous effects, we find that the measures of entry deregulation are strongly associated with a reduction in the cost of opening a new business.
    Keywords: L88 ; O25 ; C33 ; O10 ; ddc:330 ; Deregulation Cost of Opening New Businesses ; Cost of Opening New Businesses ; GDP per capita
    Repository Name: EconStor: OA server of the German National Library of Economics - Leibniz Information Centre for Economics
    Language: English
    Type: doc-type:workingPaper
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  • 10
    Publication Date: 2018-11-15
    Description: In this paper we show the importance of subject of degree in explaining the gender wage gap in Colombia. In order to minimize the influence of gender differences in experience, promotions, and job changes on the wage gap, we focus on college graduates who have a formal job and who have been in the labor market at most one year. Using unique, administrative datasets with detailed subjects of degree, we find that the wage gap against women is on average 11% and that 40% of it can be explained by differences in subject of degree. Using a distributional decomposition, we find an increasing gender wage gap across the distribution of wages (from 2% at the bottom to 15% at the top), although subject of degree explains a lower 30% of the gap at the top. Policies designed to reduce the gender wage gap need to address the differing gender educational choices and the factors that influence them. These policies would be more effective in reducing the gap for median wage earners.
    Keywords: J24 ; J31 ; J71 ; ddc:330 ; gender wage gap ; subject of degree ; decomposition ; Lohndifferenzierung ; Berufswahl ; Bildungsabschluss ; Kolumbien
    Repository Name: EconStor: OA server of the German National Library of Economics - Leibniz Information Centre for Economics
    Language: English
    Type: doc-type:workingPaper
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