72 research outputs found

    Top Management Team Heterogeneity and SME Export Performance: Investigating the Role of Environmental Uncertainty

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    Research has generally found that firm competing in high uncertainty environments gain advantages from having diverse (heterogeneous) management teams (TMTs). Employing a national survey of 70 small- and medium-sized enterprises (SMEs), the present study examined whether TM T heterogeneity in functional background, international work experience, and foreign language proficiency had a stronger relationship with  export performance for firms competing in high than those competing in low uncertainty environments. Results were generally weak when market and industry factors contributing to uncertainty were examined  separately;  however,  additional  analysis  showed  that  the hypothesized relationship did exist when uncertainty was measured employing both factors simultaneously

    The Nature of the Dietary Protein Impacts the Tissue-to-Diet 15N Discrimination Factors in Laboratory Rats

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    Due to the existence of isotope effects on some metabolic pathways of amino acid and protein metabolism, animal tissues are 15N-enriched relative to their dietary nitrogen sources and this 15N enrichment varies among different tissues and metabolic pools. The magnitude of the tissue-to-diet discrimination (Δ15N) has also been shown to depend on dietary factors. Since dietary protein sources affect amino acid and protein metabolism, we hypothesized that they would impact this discrimination factor, with selective effects at the tissue level. To test this hypothesis, we investigated in rats the influence of a milk or soy protein-based diet on Δ15N in various nitrogen fractions (urea, protein and non-protein fractions) of blood and tissues, focusing on visceral tissues. Regardless of the diet, the different protein fractions of blood and tissues were generally 15N-enriched relative to their non-protein fraction and to the diet (Δ15N>0), with large variations in the Δ15N between tissue proteins. Δ15N values were markedly lower in tissue proteins of rats fed milk proteins compared to those fed soy proteins, in all sampled tissues except in the intestine, and the amplitude of Δ15N differences between diets differed between tissues. Both between-tissue and between-diet Δ15N differences are probably related to modulations of the relative orientation of dietary and endogenous amino acids in the different metabolic pathways. More specifically, the smaller Δ15N values observed in tissue proteins with milk than soy dietary protein may be due to a slightly more direct channeling of dietary amino acids for tissue protein renewal and to a lower recycling of amino acids through fractionating pathways. In conclusion, the present data indicate that natural Δ15N of tissue are sensitive markers of the specific subtle regional modifications of the protein and amino acid metabolism induced by the protein dietary source

    A cost effectiveness analysis of using alternate materials for non-skid in shipboard applications

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    MBA Professional ReportThis MBA project investigated and evaluated the cost effectiveness of using alternative materials in shipboard construction, specifically in the area of non-skid application on surface ships. This project identified the costs and benefits of different alternatives to the currently used non-skid and identified whether these alternatives would be feasible for use onboard Navy ships. The analysis indicates that the Thermion alternative shows the potential for the most significant cost savings across the Surface Fleet, while the Liquidmetal alternative also shows potential for savings compared to the current status quo. It is recommended that both the Thermion and Liquidmetal alternatives be prototyped on Navy warships to better define their costs and benefits and evaluate their suitability for use.http://archive.org/details/acosteffectivene109459843Lieutenant(s), United States NavyApproved for public release; distribution is unlimited
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