Driving Maximal Frequency Content and Natural Slopes Sharpening for Image Amplification with High Scale Factor.

Background: In this paper, a method for adaptive Pure Interpolation (PI) in the frequency domain, with gradient auto-regularization, is proposed.

Methods: The input image is transformed into the frequency domain and convolved with the Fourier Transform (FT) of a 2D sampling array (interpolation kernel) of initial size L × M. The Inverse Fourier Transform (IFT) is applied to the output coefficients and the edges are detected and counted.

Survival of Mexican children with acute myeloid leukaemia who received early intensification chemotherapy and an autologous transplant.

Background: In Mexico and other developing countries, few reports of the survival of children with acute leukaemia exist. Objective. We aimed at comparing the disease-free survival of children with acute myeloid leukaemia who, in addition to being treated with the Latin American protocol of chemotherapy and an autologous transplant, either underwent early intensified chemotherapy or did not undergo such treatment.

Smart multi-level tool for remote patient monitoring based on a wireless sensor network and mobile augmented reality.

Technological innovations in the field of disease prevention and maintenance of patient health have enabled the evolution of fields such as monitoring systems. One of the main advances is the development of real-time monitors that use intelligent and wireless communication technology. In this paper, a system is presented for the remote monitoring of the body temperature and heart rate of a patient by means of a wireless sensor network (WSN) and mobile augmented reality (MAR).

The influence of the variable sample volume and constant added standard on the determination of copper, nickel and chromium by atomic absorption spectrometry.

Bader indicated as the most convenient approaches for the determination of an element by atomic absorption spectrometry the (1) continuous variation of standard at constant total volume, and (2) continuous variation of the unknown analyte at constant total volume. Considering the relevance of the ease of atomization, Bader's statement were put to the test in the determination of copper, nickel, and chromiun in nodular iron by use of analysis of variance (ANOVA). The results presented here lead to the conclusion that Bader's modes (1) and (2) are not equivalent for all cases.