Precise measurements of the W mass at the Tevatron and indirect constraints on the Higgs mass

I describe the latest D0 and CDF W boson mass measurements. The D0 measurement is performed with $4.3\, fb^{-1}$ of integrated luminosity in the electron decay channel with a data set of $1.68\times 10^{6}$ W candidates. The value of the W boson mass measured by D0 is $M_W = 80.375\pm 0.023\, GeV$ when combined with the previously analyzed $1\, fb^{-1}$ of integrated luminosity. The CDF measurement uses $2.2\, fb^{-1}$ of integrated luminosity in both electron and muon decay channels with a total of $1.1\times 10^{6}$ W candidates. The value of the W boson mass measured by CDF is $M_W = 80.387\pm 0.019\, GeV$. I report the combination of these two measurements with previous Tevatron measurements and with the LEP measurements of the W boson mass. The new world average is $M_W = 80.385\pm 0.015\, GeV$. I discuss the implications of the new measurement to the indirect measurement of the Standard Model Higgs boson mass.Comment: Moriond QCD 2012 (8 pages, 6 figures); v2: added report number; v3: corrected typo in the number of W candidates used in the measuremen

Controle orgânico de endo e ectoparasitas em ruminantes: revisão.

Os endo e ectoparasitas são responsáveis por perdas econômicas significativas na produção de ruminantes. Estas perdas ocorrem em função da redução na produção de leite, diminuição no ganho de peso, depreciação da qualidade da pele e do couro, queda nas taxas de fertilidade, gastos com medicamentos e, até mesmo, por aumento da mortalidade. Nos últimos anos o sistema de produção animal tem se caracterizado pelos métodos intensivos de criação. Entretanto, este tipo de sistema pode propiciar um aumento nas infestações por parasitas, principalmente por trabalhar com altas lotações e utilizar animais susceptíveis às parasitoses

South-South Cooperation in Times of Global Economic Crisis

For South-South cooperation, the current moment of global economic downturn is one of anxiety. South-South cooperation was born with the Non-Aligned Movement. It went through a latent period, but re-emerged in the 1990s and early 2000s. The momentum gathered when a handful of middle-income countries such as Brazil, India, Mexico and South Africa were set to improve their position as global players. They had developed some relatively successful social programmes, which they sought to share with other developing countries. Considering that conventional North-South cooperation had turned out to be of limited effectiveness, South-South cooperation gained further impetus.South-South Cooperation in Times of Global Economic Crisis

New York?s Brand-new Conditional Cash Transfer Programme: What if it Succeeds?

In 2007, emulating the Mexican experience, Mayor Bloomberg decided that New York City should also have its own conditional cash transfer programme (CCT). He named the programme Opportunity NYC after the Mexican Oportunidades. Is Opportunity NYC just one more CCT in the plethora of existing programmes? Or will it influence the way educational reforms have been traditionally conceptualized?New York?s Brand-new Conditional Cash Transfer Programme: What if it Succeeds?