The results obtained provide valuable clues for designing molecularly imprinted nanoparticle preparation in future studies, where fine tuning of particle size and binding properties are required to fit practical applications. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012″
“An investigation of the change in various geometric and emission parameters over the life cycle of nine ZrO/W(100) Schottky cathodes was performed. The initial shape for all emitters was “”Stage 1,”" i.e., a large square, low work
function (100) facet intersected by four (112) and (110) facets. The ending shape for all emitters was “”Stage 0,”" i.e., a round central (100) facet with four side (110) planes. Change in geometric parameters such as emitter apex radius r, cone angle alpha, central (100) AZD6094 facet size f, and neck size L were measured at the beginning and after 10 000 to 18 000 h of cathode operation. For a particular end form (or Stage), f scaled linearly with emitter radius r. In addition, emission parameters such as the axial angular current density I’, total current I(t), work function phi, electric field F, and extraction voltage V(e) were monitored
continuously. Of the nine sources investigated four experienced collapsing net planes (ring collapse) on the central (100) crystal facet. The emitters with ring collapse events had the largest increase in r and a corresponding reduction in the field factor beta = F/V(e). For the most part beta, phi, and r remained unchanged for those emitters find more not having ring collapse events. The ending I’ INCB024360 order values mostly decreased at a constant V(e), but less so for those
emitters with no ring collapse. Experimental results showed that for I’ <= 0.3 mA/sr and T = 1800 K ring collapse occurs. In contrast, for I’ >= 0.3 mA/sr ring collapse does not occur. For all emitters investigated, the parameters exhibiting the largest increase over the course of the life test were L and I(t), whereas a was typically unchanged. (C) 2011 American Institute of Physics. [doi:10.1063/1.3632064]“
“We analyzed characteristics of invasive pneumococcal disease cases occurring in Massachusetts after the introduction and use of conjugate vaccine by underlying risk. Among 578 cases with sufficient information, 16% had high-risk or presumed high-risk conditions (HR/PHR), 3% had asthma, and 80% had no known risk (NKR). The most common HR/PHR conditions were disorders associated with immunosuppression. HR/PHR cases tended to be older and were more likely to be hospitalized than were children with NKR. Children with asthma presented with pneumonia more often than children with NKR.”
“In the work, poly(ethylene terephthalate) (PET) fibers were grafted with 4-vinyl pyridine (4-VP) monomer using benzoyl peroxide (Bz(2)O(2)) as initiator in aqueous media.