We find that the loss of luminance and the increase in drive voltage of stressed devices is accompanied by a deterioration of hole injection and the formation of positively charged quenching centers at or close to the organic heterojunction.
Using a new polymeric hole injection layer leads to improved device stability. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3294642]“
“The effects of varying concentrations of EGF were evaluated in terms of in vitro follicular development and the mRNA expression levels of EGF, EGF-R, FSH-R and P450 aromatase. After 6 days, the addition of 50 ng/mL of EGF to the culture medium increased the antrum formation rates in comparison to cultured control and after 18 days of culture produced oocytes with higher rates of meiosis resumption when compared to the other treatments (P < 0.05). The daily follicular LY2090314 solubility dmso growth rates in presence of EGF (50 or 100) were increased in comparison selleckchem to the cultured control (P < 0.05).
Treatment with EGF 50 stimulated the expression of EGF mRNA but reduced EGF-R mRNA expression and estradiol secretion as compared to the cultured control (P < 0.05). After 18 days of culture, the mRNA levels for FSH-R and P450 aromatase were greater than those of the non-cultured controls (P < 0.05). In conclusion, the effects of EGF treatment on the mRNA levels for EGF, EGF-R, FSH-R, and P450 aromatase varied according
to the stage of follicle development. (C) 2012 Elsevier Ltd. All rights reserved.”
“Purpose: To examine the incidence and severity of nonionic intravenous contrast material reactions in a large pediatric patient population.
Materials and Methods: Electronic records on all consecutive patients at a tertiary care pediatric hospital who received ioversol LY3039478 supplier contrast material over a 7-year period for computed tomographic or excretory urographic studies were reviewed, yielding individual contrast material injection events in 12 494 patients up to 21 years of age. There were 6600 male patients and 5894 female patients. Contrast material reactions were categorized as mild, moderate, or severe according to American College of Radiology guidelines. Logistic regression analysis was performed to evaluate effects of age, sex, season, and study year on the presence of an intravenous contrast material reaction.
Results: There were 57 adverse events related to nonionic iodinated intravenous contrast material in 12 494 consecutive pediatric and young adult patients. Incidence of a contrast material reaction was 0.46% (57 of 12 494), or one in 200 patients. Incidence of a type I (mild) contrast material reaction was 0.38% (47 of 12 494), or one in 250 patients. Incidence of a type II (moderate) reaction was 0.08% (10 of 12 494), or one in 1000 patients. There were no severe ( type III) reactions.