Polyethylene terephthalate (PET) recycling is one of the most important environmental issues, assuring a cleaner environment and reducing the carbon footprint of technological products, taking into account the quantities used year by year. The recycling possibilities depend on the quality of the collected material and on the targeted product. Current research aims to increase recycling quantities by putting together recycled PET in an innovative way as a filler for the additive manufactured metallic lattice structure.
View Article and Find Full Text PDFThe present study is focused on polylactic acid (PLA) blending with bio nanoadditives, such as Tonsil (clay) and Aerosil, to obtain nanocomposites for a new generation of food packaging. The basic composition was enhanced using Sorbitan oleate (E494) and Proviplast as plasticizers, increasing the composite samples' stability and their mechanical strength. Four mixtures were prepared: S1 with Tonsil; S2 with Aerosil; S3 with Aerosil + Proviplast; and S4 with Sabosorb.
View Article and Find Full Text PDFUnlabelled: Previous studies revealed a close connection between heat shock and manganese-dependent superoxide dismutase (SOD2) in eukaryotes. This paper shows that SOD mimics based on manganese complexes caused an increase in thermotolerance for a mutant fission yeast deficient in mitochondrial superoxide dismutase. Manganese compounds used for tests are SOD mimics, from two different classes: salen manganese (EUK-8) and Mn porphyrin (Mn(III)TE-2-PyP(5+)).
View Article and Find Full Text PDFBacteriol Virusol Parazitol Epidemiol
April 2009
The aim of this study is to evaluate the susceptibility profile to many antifungal drugs of 95 yeast strains isolated from oral mycoses in HIV-negative and HIV-positive patients from the eastern region of Romania. The antifungal drugs tested against all strains were 5-flucytosine (5FC), amphotericin B (AMB), fluconazole (FCA) and itraconazole (ITR), using ATB fungus2 devices (bioMérieux, France). For strains isolated from HIV-positive patients, two new antifungals were tested--voriconazole (VOR) and caspofungine (CAS), using Etest strips.
View Article and Find Full Text PDFExpression of Schizosaccharomyces pombe pho1-encoded acid phosphatase is transcriptionally regulated by adenine and phosphate. Four genes, anr1-3 and anr5, encode negative regulators of pho1 expression. Apart from being designated as loci, the anr genes have not been further characterized.
View Article and Find Full Text PDFThe fission yeast Schizosaccharomyces pombe is a natural auxotroph for inositol and fails to grow in the complete absence of it. It was previously reported that a small concentration of inositol in the culture medium supports vegetative growth, but not mating and sporulation, and a tenfold of that concentration also supports mating and sporulation. The purpose of the present work was to investigate whether a moderate inositol starvation specifically affected events of the sexual program of development.
View Article and Find Full Text PDFThe dynamic scaling approach is an important tool for describing the time evolution of rough interfaces. It computes dynamic scaling parameters alpha and beta, which characterize surface and time correlations. Applications of dynamic scaling to random deposition and ballistic deposition are discussed.
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