The authors developed a nanocomposite using polypropylene (PP) and graphene nanoplatelets (GNPs) with melt mixing method. Virgin PP was filled three sets of GNPs fixed thickness (15 nm) surface area (50–80 m2/g). selected H-type had different sizes 5, 15 25 µm. nanocomposites were made by loading at 1, 2 3 wt.%. Mechanical analysis carried out performing tensile, flexural impact strength tests....

MAX 250 WORDS) 14 Dissemination of Shiga toxin-encoding bacteriophages by transduction is the most 15 likely mechanisms for the spread of Stx-encoding genes and the emergence of new Shiga 16 toxin-producing Escherichia coli (STEC). Biofilm have been reported to be a place where 17 horizontal gene transfer by plasmid conjugation and DNA transformation may occur, and in 18 this study horizontal g...

Using panel data on investment of firms in energy saving technology, we measure the impact of the payback period of the technology on the probability to adopt the technology in the absence of tax and subsidy incentives. We find that the decision rules to adopt energy saving technology differs substantially between different types of firms, i.e. for-profit/notfor-profit as the decision to adopt ...

A recent empirical literature has arisen documenting the response of one nation’s policy choices, including tax, environmental, and labour policies, to those of others. This has been largely interpreted as evidence of competition, be it for mobile resources (like FDI, taxable book income, etc.) or yardstick. We present a third explanation based on learning. When countries’ tax choices reflect p...

In principle, a VAT should be neutral with regards to both the level and composition of exports. In practice, this may not be the case because exporters in many countries receive incomplete VAT refunds. When VAT refunds are incomplete, the exports of industries that rely heavily on intermediate goods are especially likely to be negatively a ected by a VAT. Motivated by these considerations, thi...

The genetic elements that govern the differentiation and proliferation of hematopoietic stem cells remain to be defined. We describe here marked strain-specific differences in the frequency of long-term culture-initiating cells (LTC-IC) in the bone marrow of different strains of mice. Mice of C57Bl/6 background showed the lowest levels of stem cells in marrow, averaging 2.4 +/- .06 LTC-IC/10(5)...

Healthy calves (n = 96, 1 to 9 weeks old) from a dairy herd in central Pennsylvania were examined each month over a five-month period for fecal shedding of ceftiofur-resistant gram-negative bacteria. Ceftiofur-resistant Escherichia coli isolates (n = 122) were characterized by antimicrobial resistance (disk diffusion and MIC), serotype, pulsed-field gel electrophoresis subtypes, beta-lactamase ...