2008 **Abstract:** Editorial Editorial rev Chil Pediatr 2012; 83 (5): 417-419 aspectos éticos en las publicaciones de revistas científicas de corriente principal las revistas de corriente principal (main stream journals) son aquellas revistas que publican resultados de investigación científica, que son arbitradas por pares (peer reviewed), que están indizadas en bases de datos interna-cionales de prestigio y que tienen influencia en el desarrollo del conocimiento universal. de estos cuatro elementos, el principal es el ca-rácter…

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“…a problem where "large and sometimes infinite changes in the solution could correspond to small changes in the input data" [16] 4 In this light the stability of the solution of Equation 15 with respect to fluctuations can be quantified by how the uncertainties on the inputs are propagated to the output: a quantitative figure of merit for this propagation is the maximum ratio of relative precision of the estimated solution μ μ μ est of Equation 15 to the relative precision of the measured input vector d = n -β β β, defined as…”

confidence: 99%

“…a problem where "large and sometimes infinite changes in the solution could correspond to small changes in the input data" [16] 4 In this light the stability of the solution of Equation 15 with respect to fluctuations can be quantified by how the uncertainties on the inputs are propagated to the output: a quantitative figure of merit for this propagation is the maximum ratio of relative precision of the estimated solution μ μ μ est of Equation 15 to the relative precision of the measured input vector d = n -β β β, defined as…”

confidence: 99%

“…The transformation of variables 3 A possible exception can be some very well behaved cases with nearly diagonal response matrices where migrations effects are minimal, the expected uncertainties are well understood and the expected bias is found to be negligible in comparison to the total final uncertainties on the unfolded results (see also Section13). 4 A simple and powerful visualization of the ill-posed problem is also given in Ref. [ 10]: given that the kernel integration in Equation 1 tends to smooth out f (y) and to reduce its high frequency components (edges, cusps and the like), the inversion of such a procedure will inevitably enhance the high frequency features of the input.…”

confidence: 99%

“…The goal has been to elucidate the properties of the hot, dense medium formed in the collisions of heavy ions. ATLAS has three major subsystems [1], which make it a powerful detector for probing the properties of the quark-gluon plasma. The inner detector measures charged tracks out to |η| < 2.5 in full azimuth in three layers of pixel detectors and four layers of double-sided strip detectors.…”

confidence: 99%

“…In addition, the frequency and total number of collisions per second is very large in order to provide a sufficient quantity of data to search for rare processes. To study the complex events resulting from the collisions, two general purpose detectors, ATLAS (A Toroidal LHC ApparatuS) [1] and CMS (compact muon spectrometer) [2], have been built, installed at the LHC, commissioned and are now collecting data. The data collected to date have already yielded a number of physics papers, and the design choices made by each experiment have been validated.…”

confidence: 99%