In Sinaloa, labor force employed in tasks related to vegetable production is mostly from migrants. These people come from the states of Guerrero, Oaxaca and Veracruz. They are, however, economically, socially, politically and laborally excluded both as migrants and as indigenous people. In order to face these problems, in Sinaloa,...
Dos elementos que han contribuido a modificar de manera radical nuestra visión del universo son la Mecánica Cuántica y la Teoría General de la Relatividad. La primera surgió como consecuencia de explicar fenómenos que la mecánica newtoniana no podía. La segunda, para unificar en forma consistente la relatividad especial y...
In the present work, titanium dioxide materials doped with transition metal cations (Cr, Cu and Mo) were synthesized by the sol-gel method. To analyze the photocatalytic activity the dop ing content was vary to 0.1, 0.5, 1.0 and 5.0 wt.%. The synthesized materials were characterized by Fourier transform infrared, Ultraviolet-...