MiniBooNE, the Mini Booster Neutrino Experiment at Fermilab, will search for the appearance of electron neutrinos in a beam of muon neutrinos, and in the process will accumulate more neutrino ...interactions in the 0 − 2 GeV energy range than all past experiments. This work presents preliminary results from the neutral current
π
0 analysis at MiniBooNE, with comparisons of the NUANCE, NEUGEN, and NEUT neutrino cross section Monte Carlos. Also presented are comparisons of three Monte Carlo simulations with MiniBooNE data taken during the running period from September, 2002, to September, 2003.
Recombination was measured across nine intervals in the human beta-globin gene cluster by single-sperm analysis. A recombination fraction of similar0.9% was calculated across an similar11 kb region ...using a new method to estimate recombination fractions from single-sperm typing data. No recombination was detected in an adjacent similar90 kb region that extends upstream of the beta-globin cluster. These data are consistent with previous estimates based on population genetic analysis, and suggest a recombination rate of nearly two orders of magnitude greater than the genome average of similar1 cM/Mb. Because recombination hot spots will destroy linkage disequilibrium across small physical regions, knowledge about the location and strength of such hot spots could be extremely valuable for genetic association studies.
An improved technique is described for in vitro culture of the chick embryo from three days through 21 days of total incubation (three days in shell plus 18 days in culture). Mean survival time for ...cultured embryos is 18 days of total incubation, and mean morphological stage is Hamburger-Hamilton stage 41 (15 days). Mean measurements of wet weight, dry weight, and right third toe length for stage 45 (partial or complete abdominal yolk sac retraction, 19-20 days) cultured embryos are comparable with corresponding means for stage 42-43 (16-17 days) embryos from control intact eggs. Possible causes of growth retardation in vitro are briefly discussed.
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