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On the dispersion equation for a homogeneous, bi-isotropic waveguide of arbitrary cross-section

In this article, we consider the propagation problem inside a waveguide filled with a homogeneous bi-isotropic material. The cross section of the waveguide is assumed arbitrary. By using the classical theory for the 2D Helmholtz equation in the cross section and the null-field approach, we obtain the dispersion equation in an implicit form. The final equation is a potential candidate for the solut

Tryptophan end-tagging of antimicrobial peptides for increased potency against Pseudomonas aeruginosa.

BACKGROUND: Due to increasing antibiotics resistance, antimicrobial peptides (AMPs) are receiving increased attention. Pseudomonas aeruginosa is a major pathogen in this context, involved, e.g., in keratitis and wound infections. Novel bactericidal agents against this pathogen are therefore needed. METHODS: Bactericidal potency was monitored by radial diffusion, viable count, and minimal inhibitor

Translocation-related sarcomas.

Sarcomas with chromosomal translocations represent only about one fourth of sarcoma diagnoses. However, like gastrointestinal stromal tumor (GIST), with its characteristic KIT or PDGFRA mutations, they are particularly interesting since they provide specific biological insights and mechanisms of action that may have an impact upon prognosis or therapy. These are mechanisms we are just beginning to

Adiposity in children born small for gestational age is associated with β-cell function, genetic variants for insulin resistance and response to growth hormone treatment.

Genetic susceptibility to insulin resistance is associated with lower adiposity in adults. Insulin resistance, and therefore adiposity, may alter sensitivity to Growth Hormone (GH). We aimed to determine the relationship between adiposity, genetic susceptibility to insulin resistance or insulin secretion, and response to GH treatment in short children born small for gestational age (SGA).

Greenhouse gas emissions from a constructed wetland in southern Sweden.

This paper investigates the greenhouse gas emissions from a Swedish wetland, constructed to decrease nutrient content in sewage treatment water. To evaluate the effect of the construction in terms of greenhouse gas emissions we carried out ecosystem-atmosphere flux measurements of CO2, CH4 and N2O using a closed chamber technique. To evaluate the importance of vascular plant species composition to

Four novel human betapapillomaviruses of species 2 preferentially found in actinic keratosis.

Recent studies have suggested an association between human papillomaviruses (HPVs), particularly species 2 members of the genus Betapapillomavirus, and squamous cell carcinoma (SCC) of the skin. As most of these viruses are uncharacterized, molecular characterization and epidemiology are needed to advance our understanding of their significance in carcinogenesis. This study determined the complete