Sara M Wichner

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Although the etiology of primary brain tumors is largely unknown, prior studies suggest that DNA repair polymorphisms may influence risk of glioma. Altered DNA repair is also likely to affect the risk of meningioma and acoustic neuroma, but these tumors have not been well studied. We estimated the risk of glioma (n = 362), meningioma (n = 134), and acoustic(More)
BACKGROUND Cancer epidemiology articles often point out that cancer rates tend to be higher among males than females yet rarely is this theme the subject of investigation. METHODS We used the Surveillance, Epidemiology and End Results program data to compute age-adjusted (2000 U.S. standard population) sex-specific incidence rates and male-to-female(More)
Plants are settled by epiphytic bacteriae able to convert tryptophan to IAA. This bacterial activity is abolished by chloramphenicol and streptomycin but not by penicillin. Tryptophan conversion to IAA by plant parts or enzyme preparations is far more intensive in non-sterile conditions than in sterile ones. This is true for all investigated objects:(More)
The g rowth response of t h e t e s t o rgan i sm is m e a s u r e d acidime t r i ca l l y a f t e r 72 hou r s i n c u b a t i o n a t 37 ~ C. Fig. 1 r ep resen t s t he resu l t s ob ta ined wi th a l o a m y soil GD 624. The t ab le gives t he resu l t s ob ta ined wi th d i f ferent soils a f t e r th ree days of i n c u b a t i o n a t 37 ~ C. F u r t(More)
4 x 30 mg/kg 5-bromuracile (5-BrU) - injected shortly after the antigen once per day - suppress the development of direct plaque forming cells (PFC) in the spleen of immunized mice on the 4th day of the primary reaction weakly. 5 higher doses epsilon-aminocapronic acid (ACA) were not immunosuppressive, but those of 5-BrU-ACA. The immunosuppression was of(More)
Semiconductor quantum dots (QDs) have proven to be superior probes for single-molecule imaging compared to organic or genetically encoded fluorophores, but they are limited by difficulties in protein targeting, their larger size, and on-off blinking. Here, we report compact aqueous CdSe/CdS QDs with significantly improved bioconjugation efficiency and(More)