We report on recent work to determine the CKM matrix element |Vus| using strange hadronic τ decay data. We use the recent OPAL update of the strange spectral function, while on the theory side we update the dimension-two perturbative contribution including the recently calculated α 3 s terms. Our result |Vus| = 0.2220±0.0033 is already competitive with the standard extraction from Ke3 decays an...

A search is presented for physics beyond the standard model in final states with two opposite-sign same-flavor leptons, jets, and missing transverse momentum. The data sample corresponds to an integrated luminosity of 19.4 fb−1 of proton-proton collisions at √ s = 8 TeV collected with the CMS detector at the CERN LHC in 2012. The analysis focuses on searches for a kinematic edge in the invarian...

Utilizing recent DIS measurements (F2,L) and data on dilepton and high–ET jet production we determine the dynamical parton distributions of the nucleon generated radiatively from valence–like positive input distributions at optimally chosen low resolution scales. These are compared with ‘standard’ distributions generated from positive input distributions at some fixed and higher resolution scal...

We review the status of the flavour-changing neutral-current processes (FCNC). In particular we discuss: i) Main targets of the field, ii) The theoretical framework for FCNC, iii) Standard analysis of the unitarity triangle, iv) ε/ε, v) Radiative, rare and CP-violating decays, vi) CP-asymmetries in B-decays, vii) Comparision of the potentials of K → πνν̄ and CP-B asymmetries, vii) Some aspects o...

Harmonic extraction methods for the multiparameter eigenvalue problem willbe presented. These techniques are generalizations of their counterparts forthe standard and generalized eigenvalue problem. The methods aim to ap-proximate interior eigenpairs, generally more accurately than the standardextraction does. The process can be combined with any subspace expansionapproa...

We report on recent work to determine the CKM matrix element |Vus| using strange hadronic τ decay data. We use the recent OPAL update of the strange spectral function, while on the theory side we update the dimension-two perturbative contribution including the recently calculated α 3 s terms. Our result |Vus| = 0.2220±0.0033 is already competitive with the standard extraction from Ke3 decays an...

A theoretical analysis of land assembly with and without eminent domain concludes that, contrary to traditional assumptions, eminent domain is not necessarily a more efficient institution than the free market for consolidating many contiguous but separately owned parcels into a single ownership unit. In practice, prices paid under eminent domain may differ systematically from the "fair market v...

Recibido: 06-06-12 Aprobado: 13-06-12 Figura 1. Actividades desarrolladas en áreas rurales y periurbanas de la ciudad de Iquitos. A) Descarga de madera transportada en botes rústicos (peque-peque); B) Casas flotantes a orillas de los ríos. La leptospirosis es una enfermedad zoonótica de importancia global causada por especies patógenas de Leptospira sp. Se presenta en áreas rurales y urbanas, p...

Echinacea has been in the news lately, due to a series of studies that found it to be ineffective in protecting against respiratory tract infections such as coughs and colds (Grimm & Muller ’99, Barrett et al ’02, Kreutzfeld ’06). These were all randomised, double blind trials with reasonable numbers of trial subjects, so they cannot be lightly dismissed. In addition to these negative findings,...