41 research outputs found
Invariant imbedding theory of mode conversion in inhomogeneous plasmas. II. Mode conversion in cold, magnetized plasmas with perpendicular inhomogeneity
A new version of the invariant imbedding theory for the propagation of
coupled waves in inhomogeneous media is applied to the mode conversion of high
frequency electromagnetic waves into electrostatic modes in cold, magnetized
and stratified plasmas. The cases where the external magnetic field is applied
perpendicularly to the direction of inhomogeneity and the electron density
profile is linear are considered. Extensive and numerically exact results for
the mode conversion coefficients, the reflectances and the wave electric and
magnetic field profiles inside the inhomogeneous plasma are obtained. The
dependences of mode conversion phenomena on the magnitude of the external
magnetic field, the incident angle and the wave frequency are explored in
detail.Comment: 11 figures, to be published in Physics of Plasma
Less is more: Antibiotics at the beginning of life
Antibiotic exposure at the beginning of life can lead to increased antimicrobial resistance and perturbations of the developing microbiome. Early-life microbiome disruption increases the risks of developing chronic diseases later in life. Fear of missing evolving neonatal sepsis is the key driver for antibiotic overtreatment early in life. Bias (a systemic deviation towards overtreatment) and noise (a random scatter) affect the decision-making process. In this perspective, we advocate for a factual approach quantifying the burden of treatment in relation to the burden of disease balancing antimicrobial stewardship and effective sepsis management
Preliminary evaluation of growth and yielding of two saskatoon berry (Amelanchier alnifolia Nutt.) genotypes planted in the different density
Evaluating economic value of 23 strawberry cultivars in the climatic conditions of Central Europe
Aim of the project was to test 23 strawberry cultivars in the climate of Poland and evaluate their economic value. 13 of discussed cultivars were newly bread in Poland and 10 are of foreign origin including cultivars that were never tested in East–Central Europe. All of these cultivars were evaluated in comparison to the 4 standard cultivars used in Poland. The experiment was conducted between 2004 and 2011 in central Poland in the Research Institute of Horticulture in Skierniewice. The data were analyzed using linear mixed model. The results shows that cultivar ‘Paladyn’ performed exceptionally well regarding yield and fruit size. Thus, it is one of the best cultivars for including into canon strawberry cultivars, not only in Poland. The rest of tested cultivars, especially those with foreign origin, may need specific treatment or more investigation to accomplish more in the climatic conditions of this geographical region
Nitrogen fixation in several grain legume species with contrasting sensitivities to copper nutrition
Mathematical characterization of values of rheological variables during the networking reaction of rubber mixtures based on SBR
Effects of reflectivity gradients of radar polarimetetric measurements
Collaboration research program between: The Radar Meteorology Group, IFA, CNR (Italy) and the Department of Electrical Engineering, The Pensylvania State University, USASIGLEITItal