Mantendrá Francia su lugar clave en la Europa del siglo XXI? = France maintained its key position in Europe in the XXI century? Jean Monnet/Robert Schuman Paper Series Vol. 14 No. 7, May 2014

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The Amplifier - v. 14, no. 7

In this issue...ACT Program, Mountaineering Club, Main Hall, Glacier National Park, Chess Tournament, Cheerleaders, Conoco, Peace Corps, Theta Tau, Fritz's Ski Haus

Experimental demonstration of real-time optical OFDM Transmission at 7.5 Gb/s over 25-km SSMF using a 1-GHz RSOA

The 7.5-Gb/s real-time end-to-end optical orthogonal frequency-division- multiplexing (OOFDM) transceivers incorporating variable power loading on each individual subcarrier are demonstrated experimentally using a live-optimized reflective semiconductor optical amplifier intensity modulator having a modulation bandwidth as narrow as 1 GHz. Real-time OOFDM signal transmission at 7.5 Gb/s over 25-km standard single-mode fiber is achieved across the $C$-band in simple intensity modulation and direct detection systems without in-line optical amplification and dispersion compensation. © 2006 IEEE.

14种菊科植物提取物对菜青虫的杀虫活性

用胜红蓟、黄花蒿、青蒿、艾蒿、鬼针草、三叶鬼针草、鱼眼草、小鱼眼草、紫茎泽兰、千里光、希莶草、万寿菊、肿柄菊、苍耳等14种菊科植物的石油醚、氯仿、丙酮、乙醇、甲醇和水提取物对菜青虫5龄幼虫的生测结果表明,黄花蒿、青蒿、艾蒿、鱼眼草、小鱼眼草、紫茎泽兰、万寿菊等7种菊科植物甲醇和乙醇提取物具有较高的杀虫活性。此结果为进一步从菊科植物中提取、分离和筛选高活性杀虫活性成分奠定了基础。

Custo médio de produção de suínos para abate: anexo 14 - dezembro/83.

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Measurement of the t(t)over-bar production cross section and the top quark mass in the dilepton channel in pp collisions at root s=7 Tev

The t (t) over bar production cross section and top quark mass are measured in proton-proton collisions at root s = 7 TeV in a data sample corresponding to an integrated luminosity of 36 pb(-1) collected by the CMS experiment. The measurements are performed in events with two leptons (electrons or muons) in the final state. Results of the cross section measurement in events with and without b-quark identification are obtained and combined. The measured value is sigma(tt) - 168 +/- 18 (stat:) +/- 14 (syst:) +/- 7 (lumi:) pb, consistent with predictions from the standard model. The top quark mass m(top) is reconstructed with two different methods, a full kinematic analysis and a matrix weighting technique. The combination yields a measurement of m(top) = 175.5 +/- 4.6 (stat:) +/- 4: 6 (syst:) GeV/c(2).