Radon is the main source of natural radioactivity, and its measurement considered extremely important in radioprotection, given relationship with occurrence lung cancer. In last two years, measurements this radioactive gas were carried out Lima considering a grid 5 km2 population density to determine number be out. Cellulose nitrate nuclear track detectors exposed bare mode diffusion chamber us...

The natural sum operation for symplectic manifolds is defined by gluing along codimension two submanifolds. Specifically, let X be a symplectic 2n-manifold with a symplectic (2n − 2)submanifold V . Given a similar pair (Y, V ) with a symplectic identification V = V and a complex anti-linear isomorphism between the normal bundles of V and V , we can form the symplectic sum Z = X# V=V Y . This no...

Omission failures represent an important source of problems in data-intensive computing systems. In these frameworks, omission failures are caused by slow tasks, known as stragglers, which can strongly jeopardize the workload performance. In the case of MapReduce-based systems, many state-of-the-art approaches have preferred to explore and extend speculative execution mechanisms. Other alternat...

OBJECTIVE To prospectively identify which patients can safely undergo lumbar puncture (LP) without screening cranial computed tomography (CT). METHODS Emergency department physicians examined patients before CT. Examiners recorded the presence or absence of 10 clinical findings and answered 8 additional questions. The criterion standard was noncontrast cranial CT interpreted by staff radiolog...

We report on the potential for the discovery of a Standard Model Higgs boson with the vector boson fusion mechanism in the mass range 115 < MH < 500GeV/c 2 with the ATLAS experiment at the LHC. Feasibility studies at hadron level followed by a fast detector simulation have been performed for H → W W (∗) → ll/pT , H → γγ and H → ZZ → llqq. The preliminary results obtained here show a large disco...

We report on the potential for the discovery of a Standard Model Higgs boson with the vector boson fusion mechanism in the mass range 115 < MH < 500GeV with the ATLAS experiment at the LHC. Feasibility studies at hadron level followed by a fast detector simulation have been performed for H → W (∗)W (∗) → ll/pT , H → γγ and H → ZZ → l+l−qq. The results obtained show a large discovery potential i...

In this work, PIXE experiments were performed for measuring heavy and light elements' (ranging from aluminium to lead) concentrations inside various polluted and unpolluted soils as well as liquid samples collected from different phosphate factory sewers in the El Jadida-Safi Atlantic coastal region (Morocco). In addition, uranium ((238)U) and thorium ((232)Th) contents were evaluated in the sa...